/* [<][>][^][v][top][bottom][index][help] */
DEFINITIONS
This source file includes following definitions.
- MvgPrintf
- MvgAutoWrapPrintf
- MvgAppendColor
- MvgAppendPointsCommand
- AdjustAffine
- CloneDrawingWand
- DestroyDrawingWand
- DrawAnnotation
- DrawAffine
- DrawAllocateWand
- DrawArc
- DrawBezier
- DrawCircle
- DrawClearException
- DrawGetClipPath
- DrawSetClipPath
- DrawGetClipRule
- DrawSetClipRule
- DrawGetClipUnits
- DrawGetException
- DrawSetClipUnits
- DrawColor
- DrawComment
- DrawEllipse
- DrawGetFillColor
- DrawSetFillColor
- DrawSetFillPatternURL
- DrawGetFillOpacity
- DrawSetFillOpacity
- DrawGetFillRule
- DrawSetFillRule
- DrawGetFont
- DrawSetFont
- DrawGetFontFamily
- DrawSetFontFamily
- DrawGetFontSize
- DrawSetFontSize
- DrawGetFontStretch
- DrawSetFontStretch
- DrawGetFontStyle
- DrawSetFontStyle
- DrawGetFontWeight
- DrawSetFontWeight
- DrawGetGravity
- DrawSetGravity
- DrawComposite
- DrawLine
- DrawMatte
- DrawPathClose
- DrawPathCurveTo
- DrawPathCurveToAbsolute
- DrawPathCurveToRelative
- DrawPathCurveToQuadraticBezier
- DrawPathCurveToQuadraticBezierAbsolute
- DrawPathCurveToQuadraticBezierRelative
- DrawPathCurveToQuadraticBezierSmooth
- DrawPathCurveToQuadraticBezierSmoothAbsolute
- DrawPathCurveToQuadraticBezierSmoothRelative
- DrawPathCurveToSmooth
- DrawPathCurveToSmoothAbsolute
- DrawPathCurveToSmoothRelative
- DrawPathEllipticArc
- DrawPathEllipticArcAbsolute
- DrawPathEllipticArcRelative
- DrawPathFinish
- DrawPathLineTo
- DrawPathLineToAbsolute
- DrawPathLineToRelative
- DrawPathLineToHorizontal
- DrawPathLineToHorizontalAbsolute
- DrawPathLineToHorizontalRelative
- DrawPathLineToVertical
- DrawPathLineToVerticalAbsolute
- DrawPathLineToVerticalRelative
- DrawPathMoveTo
- DrawPathMoveToAbsolute
- DrawPathMoveToRelative
- DrawPathStart
- DrawPeekGraphicContext
- DrawPoint
- DrawPolygon
- DrawPolyline
- DrawPopClipPath
- DrawPopDefs
- DrawPopGraphicContext
- DrawPopPattern
- DrawPushClipPath
- DrawPushDefs
- DrawPushGraphicContext
- DrawPushPattern
- DrawRectangle
- DrawRender
- DrawRotate
- DrawRoundRectangle
- DrawScale
- DrawSkewX
- DrawSkewY
- DrawSetStopColor
- DrawGetStrokeColor
- DrawSetStrokeColor
- DrawSetStrokePatternURL
- DrawGetStrokeAntialias
- DrawSetStrokeAntialias
- DrawGetStrokeDashArray
- DrawSetStrokeDashArray
- DrawGetStrokeDashOffset
- DrawSetStrokeDashOffset
- DrawGetStrokeLineCap
- DrawSetStrokeLineCap
- DrawGetStrokeLineJoin
- DrawSetStrokeLineJoin
- DrawGetStrokeMiterLimit
- DrawSetStrokeMiterLimit
- DrawGetStrokeOpacity
- DrawSetStrokeOpacity
- DrawGetStrokeWidth
- DrawSetStrokeWidth
- DrawGetTextAntialias
- DrawSetTextAntialias
- DrawGetTextDecoration
- DrawSetTextDecoration
- DrawGetTextEncoding
- DrawSetTextEncoding
- DrawGetTextUnderColor
- DrawSetTextUnderColor
- DrawTranslate
- DrawSetViewbox
- NewDrawingWand
/* Copyright (C) 2003-2009 GraphicsMagick Group */
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% DDDD RRRR AAA W W IIIII N N GGGG %
% D D R R A A W W I NN N G %
% D D RRRR AAAAA W W I N N N G GG %
% D D R R A A W W W I N NN G G %
% DDDD R R A A W W IIIII N N GGG %
% %
% W W AAA N N DDDD %
% W W A A NN N D D %
% W W W AAAAA N N N D D %
% WW WW A A N NN D D %
% W W A A N N DDDD %
% %
% %
% ImageMagick Image Vector Drawing Methods %
% %
% Software Design %
% Bob Friesenhahn %
% March 2002 %
% %
% %
% Copyright (C) 2003 ImageMagick Studio, a non-profit organization dedicated %
% to making software imaging solutions freely available. %
% %
% Permission is hereby granted, free of charge, to any person obtaining a %
% copy of this software and associated documentation files ("ImageMagick"), %
% to deal in ImageMagick without restriction, including without limitation %
% the rights to use, copy, modify, merge, publish, distribute, sublicense, %
% and/or sell copies of ImageMagick, and to permit persons to whom the %
% ImageMagick is furnished to do so, subject to the following conditions: %
% %
% The above copyright notice and this permission notice shall be included in %
% all copies or substantial portions of ImageMagick. %
% %
% The software is provided "as is", without warranty of any kind, express or %
% implied, including but not limited to the warranties of merchantability, %
% fitness for a particular purpose and noninfringement. In no event shall %
% ImageMagick Studio be liable for any claim, damages or other liability, %
% whether in an action of contract, tort or otherwise, arising from, out of %
% or in connection with ImageMagick or the use or other dealings in %
% ImageMagick. %
% %
% Except as contained in this notice, the name of the ImageMagick Studio %
% shall not be used in advertising or otherwise to promote the sale, use or %
% other dealings in ImageMagick without prior written authorization from the %
% ImageMagick Studio. %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
*/
/*
Include declarations.
*/
#include "magick/studio.h"
#include "magick/attribute.h"
#include "magick/blob.h"
#include "magick/enum_strings.h"
#include "magick/error.h"
#include "magick/gem.h"
#include "magick/list.h"
#include "magick/log.h"
#include "magick/magick.h"
#include "magick/monitor.h"
#include "wand/magick_wand.h"
#include "wand/magick_compat.h"
/*
Define declarations.
*/
#define CurrentContext (drawing_wand->graphic_context[drawing_wand->index])
#define WandColorMatch(p,q) (((p)->red == (q)->red) && \
((p)->green == (q)->green) && ((p)->blue == (q)->blue) && \
((p)->opacity == (q)->opacity))
/*
Typedef declarations.
*/
typedef enum
{
PathDefaultOperation,
PathCloseOperation, /* Z|z (none) */
PathCurveToOperation, /* C|c (x1 y1 x2 y2 x y)+ */
PathCurveToQuadraticBezierOperation, /* Q|q (x1 y1 x y)+ */
PathCurveToQuadraticBezierSmoothOperation, /* T|t (x y)+ */
PathCurveToSmoothOperation, /* S|s (x2 y2 x y)+ */
PathEllipticArcOperation, /* A|a (rx ry x-axis-rotation large-arc-flag sweep-flag x y)+ */
PathLineToHorizontalOperation, /* H|h x+ */
PathLineToOperation, /* L|l (x y)+ */
PathLineToVerticalOperation, /* V|v y+ */
PathMoveToOperation /* M|m (x y)+ */
} PathOperation;
typedef enum
{
DefaultPathMode,
AbsolutePathMode,
RelativePathMode
} PathMode;
struct _DrawingWand
{
/* Support structures */
ExceptionInfo
exception;
Image
*image;
MagickBool
own_image; /* If true, then we own the image. */
/* MVG output string and housekeeping */
char
*mvg; /* MVG data */
size_t
mvg_alloc, /* total allocated memory */
mvg_length; /* total MVG length */
unsigned int
mvg_width; /* current line length */
/* Pattern support */
char
*pattern_id;
RectangleInfo
pattern_bounds;
size_t
pattern_offset;
/* Graphic drawing_wand */
int
index; /* array index */
DrawInfo
**graphic_context;
int
filter_off; /* true if not filtering attributes */
/* Pretty-printing depth */
unsigned int
indent_depth; /* number of left-hand pad characters */
/* Path operation support */
PathOperation
path_operation;
PathMode
path_mode;
/* Structure unique signature */
unsigned long
signature;
};
/*
Forward declarations.
*/
static int
MvgPrintf(DrawingWand *drawing_wand, const char *format, ...)
#if defined(__GNUC__)
__attribute__ ((format (printf, 2, 3)))
#endif
,
MvgAutoWrapPrintf(DrawingWand *drawing_wand, const char *format, ...)
#if defined(__GNUC__)
__attribute__ ((format (printf, 2, 3)))
#endif
;
static void
MvgAppendColor(DrawingWand *drawing_wand, const PixelPacket *color);
/* "Printf" for MVG commands */
static int MvgPrintf(DrawingWand *drawing_wand,const char *format,...)
{
const size_t
alloc_size=20*MaxTextExtent; /* 40K */
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->mvg == (char*) NULL)
{
drawing_wand->mvg=(char *) AcquireMagickMemory(alloc_size);
if ( drawing_wand->mvg == (char*) NULL )
{
ThrowException3(&drawing_wand->exception,
ResourceLimitError,MemoryAllocationFailed,UnableToDrawOnImage);
return(-1);
}
drawing_wand->mvg_alloc=alloc_size;
drawing_wand->mvg_length=0;
if (drawing_wand->mvg == 0)
{
ThrowException3(&drawing_wand->exception,
ResourceLimitError,MemoryAllocationFailed,UnableToDrawOnImage);
return(-1);
}
}
if (drawing_wand->mvg_alloc < (drawing_wand->mvg_length + MaxTextExtent * 10))
{
size_t realloc_size=drawing_wand->mvg_alloc + alloc_size;
drawing_wand->mvg=(char *)
ResizeMagickMemory(drawing_wand->mvg,realloc_size);
if (drawing_wand->mvg == NULL)
{
ThrowException3(&drawing_wand->exception,
ResourceLimitError,MemoryAllocationFailed,UnableToDrawOnImage);
return -1;
}
drawing_wand->mvg_alloc=realloc_size;
}
{
int
formatted_length;
va_list
argp;
while (drawing_wand->mvg_width < drawing_wand->indent_depth)
{
drawing_wand->mvg[drawing_wand->mvg_length]=' ';
drawing_wand->mvg_length++;
drawing_wand->mvg_width++;
}
drawing_wand->mvg[drawing_wand->mvg_length]=0;
va_start(argp, format);
#if defined(HAVE_VSNPRINTF)
formatted_length=vsnprintf(drawing_wand->mvg+drawing_wand->mvg_length,
drawing_wand->mvg_alloc-drawing_wand->mvg_length-1,format,argp);
#else
formatted_length=vsprintf(drawing_wand->mvg+drawing_wand->mvg_length,
format,argp);
#endif
va_end(argp);
if (formatted_length < 0)
{
ThrowException(&drawing_wand->exception,DrawError,
UnableToPrint,format);
}
else
{
drawing_wand->mvg_length+=formatted_length;
drawing_wand->mvg_width+=formatted_length;
}
drawing_wand->mvg[drawing_wand->mvg_length]=0;
if ((drawing_wand->mvg_length > 1) &&
(drawing_wand->mvg[drawing_wand->mvg_length-1] == '\n'))
drawing_wand->mvg_width=0;
assert((drawing_wand->mvg_length+1) < drawing_wand->mvg_alloc);
return formatted_length;
}
}
static int MvgAutoWrapPrintf(DrawingWand *drawing_wand,const char *format,...)
{
char
buffer[MaxTextExtent];
int
formatted_length;
va_list
argp;
va_start(argp,format);
#if defined(HAVE_VSNPRINTF)
formatted_length=vsnprintf(buffer,sizeof(buffer)-1,format,argp);
#else
formatted_length=vsprintf(buffer,format,argp);
#endif
va_end(argp);
buffer[sizeof(buffer)-1]=0;
if (formatted_length < 0)
{
ThrowException(&drawing_wand->exception,DrawError,
UnableToPrint,format);
}
else
{
if (((drawing_wand->mvg_width + formatted_length) > 78) &&
(buffer[formatted_length-1] != '\n'))
(void) MvgPrintf(drawing_wand, "\n");
(void) MvgPrintf(drawing_wand,"%s",buffer);
}
return(formatted_length);
}
static void MvgAppendColor(DrawingWand *drawing_wand, const PixelPacket *color)
{
if (color->red == 0U && color->green == 0U && color->blue == 0U &&
color->opacity == TransparentOpacity)
(void) MvgPrintf(drawing_wand,"none");
else
{
char
tuple[MaxTextExtent];
GetColorTuple(color,QuantumDepth,MagickTrue,MagickTrue,tuple);
(void) MvgPrintf(drawing_wand,"%.1024s",tuple);
}
}
static void MvgAppendPointsCommand(DrawingWand *drawing_wand,
char *command,const unsigned long number_coordinates,const PointInfo *coordinates)
{
const PointInfo
*coordinate;
size_t
i;
(void) MvgPrintf(drawing_wand, "%s", command);
for (i=number_coordinates, coordinate=coordinates; i; i--)
{
(void) MvgAutoWrapPrintf(drawing_wand," %.4g,%.4g",coordinate->x,coordinate->y);
coordinate++;
}
(void) MvgPrintf(drawing_wand, "\n");
}
static void AdjustAffine(DrawingWand *drawing_wand,const AffineMatrix *affine)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if ((affine->sx != 1.0) || (affine->rx != 0.0) || (affine->ry != 0.0) ||
(affine->sy != 1.0) || (affine->tx != 0.0) || (affine->ty != 0.0))
{
AffineMatrix
current;
current=CurrentContext->affine;
CurrentContext->affine.sx=current.sx*affine->sx+current.ry*affine->rx;
CurrentContext->affine.rx=current.rx*affine->sx+current.sy*affine->rx;
CurrentContext->affine.ry=current.sx*affine->ry+current.ry*affine->sy;
CurrentContext->affine.sy=current.rx*affine->ry+current.sy*affine->sy;
CurrentContext->affine.tx=current.sx*affine->tx+current.ry*affine->ty+
current.tx;
CurrentContext->affine.ty=current.rx*affine->tx+current.sy*affine->ty+
current.ty;
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% C l o n e D r a w i n g W a n d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% CloneDrawingWand() returns a new drawing wand which is a full (deep) copy
% of an existing drawing wand.
%
% The format of the CloneDrawingWand method is:
%
% DrawingWand *CloneDrawingWand(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand to copy
%
*/
WandExport DrawingWand *CloneDrawingWand(const DrawingWand *drawing_wand)
{
DrawingWand
*clone_wand;
ExceptionInfo
exeption_info;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
clone_wand=MagickAllocateMemory(DrawingWand *,sizeof(*clone_wand));
if (clone_wand == (DrawingWand *) NULL)
MagickFatalError3(ResourceLimitFatalError,MemoryAllocationFailed,
UnableToAllocateDrawingWand);
GetExceptionInfo(&exeption_info);
(void) memcpy(clone_wand,drawing_wand,sizeof(*clone_wand));
GetExceptionInfo(&clone_wand->exception);
clone_wand->image=(Image *) NULL;
clone_wand->mvg=(char *) NULL;
clone_wand->pattern_id=(char *) NULL;
clone_wand->graphic_context=(DrawInfo **) NULL;
clone_wand->own_image=MagickTrue;
if (drawing_wand->image != (Image *) NULL)
{
clone_wand->image=CloneImage(drawing_wand->image,0,0,MagickTrue,
&exeption_info);
if (clone_wand->image == (Image *) NULL)
goto clone_drawing_wand_fail;
}
if (drawing_wand->mvg)
{
clone_wand->mvg=MagickAllocateMemory(char *,drawing_wand->mvg_alloc);
if (clone_wand->mvg == (char *) NULL)
{
ThrowException3(&exeption_info,ResourceLimitError,
MemoryAllocationFailed,UnableToCloneDrawingWand);
goto clone_drawing_wand_fail;
}
(void) memcpy(clone_wand->mvg,drawing_wand->mvg,drawing_wand->mvg_length+1);
}
if (drawing_wand->pattern_id != (const char *) NULL)
clone_wand->pattern_id=AllocateString(drawing_wand->pattern_id);
if (drawing_wand->graphic_context != (DrawInfo **) NULL)
{
clone_wand->graphic_context=MagickAllocateArray(DrawInfo **,
drawing_wand->index+1,
sizeof(DrawInfo *));
if (clone_wand->graphic_context == (DrawInfo **) NULL)
{
ThrowException3(&exeption_info,ResourceLimitError,
MemoryAllocationFailed,UnableToCloneDrawingWand);
goto clone_drawing_wand_fail;
}
(void) memset(clone_wand->graphic_context,0,
(drawing_wand->index+1)*sizeof(DrawInfo *));
for (clone_wand->index=0; clone_wand->index <= drawing_wand->index; clone_wand->index++)
{
clone_wand->graphic_context[clone_wand->index]=
CloneDrawInfo((ImageInfo*)NULL,drawing_wand->graphic_context[clone_wand->index]);
if (clone_wand->graphic_context[clone_wand->index] == (DrawInfo*) NULL)
{
ThrowException3(&exeption_info,ResourceLimitError,
MemoryAllocationFailed,UnableToCloneDrawingWand);
goto clone_drawing_wand_fail;
}
}
clone_wand->index=drawing_wand->index;
}
return(clone_wand);
clone_drawing_wand_fail:
if (clone_wand->image != (Image *) NULL)
DestroyImage(clone_wand->image);
MagickFreeMemory(clone_wand->mvg);
MagickFreeMemory(clone_wand->pattern_id);
if (clone_wand->graphic_context != (DrawInfo **) NULL)
{
for ( ; clone_wand->index >= 0; clone_wand->index--)
{
if (clone_wand->graphic_context[clone_wand->index] != (DrawInfo*) NULL)
DestroyDrawInfo(clone_wand->graphic_context[clone_wand->index]);
clone_wand->graphic_context[clone_wand->index]=(DrawInfo*) NULL;
}
MagickFreeMemory(clone_wand->graphic_context);
}
(void) memset(clone_wand,0,sizeof(*clone_wand));
MagickFreeMemory(clone_wand);
/* No place to report exception, but it may be logged. */
DestroyExceptionInfo(&exeption_info);
return(clone_wand);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D e s t r o y D r a w i n g W a n d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DestroyDrawingWand() frees all resources associated with the drawing
% wand. Once the drawing wand has been freed, it should not be used
% any further unless it re-allocated.
%
% The format of the DestroyDrawingWand method is:
%
% void DestroyDrawingWand(DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand to destroy.
%
*/
WandExport void DestroyDrawingWand(DrawingWand *drawing_wand)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
DestroyExceptionInfo(&drawing_wand->exception);
if ((drawing_wand->image != (Image*) NULL) &&
(drawing_wand->own_image == MagickTrue))
DestroyImage(drawing_wand->image);
MagickFreeMemory(drawing_wand->mvg);
MagickFreeMemory(drawing_wand->pattern_id);
if (drawing_wand->graphic_context != (DrawInfo **) NULL)
{
for ( ; drawing_wand->index >= 0; drawing_wand->index--)
{
if (drawing_wand->graphic_context[drawing_wand->index] != (DrawInfo*) NULL)
DestroyDrawInfo(drawing_wand->graphic_context[drawing_wand->index]);
drawing_wand->graphic_context[drawing_wand->index]=(DrawInfo*) NULL;
}
MagickFreeMemory(drawing_wand->graphic_context);
}
(void) memset(drawing_wand,0,sizeof(*drawing_wand));
MagickFreeMemory(drawing_wand);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w A n n o t a t i o n %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawAnnotation() draws text on the image.
%
% The format of the DrawAnnotation method is:
%
% void DrawAnnotation(DrawingWand *drawing_wand,const double x,
% const double y,const unsigned char *text)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x: x ordinate to left of text
%
% o y: y ordinate to text baseline
%
% o text: text to draw
%
*/
WandExport void DrawAnnotation(DrawingWand *drawing_wand,const double x,
const double y,const unsigned char *text)
{
char
*escaped_text;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
assert(text != (const unsigned char *) NULL);
escaped_text=EscapeString((const char*)text,'\'');
(void) MvgPrintf(drawing_wand,"text %.4g,%.4g '%.1024s'\n",x,y,escaped_text);
escaped_text=(char *) RelinquishMagickMemory(escaped_text);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w A f f i n e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawAffine() adjusts the current affine transformation matrix with
% the specified affine transformation matrix. Note that the current affine
% transform is adjusted rather than replaced.
%
% The format of the DrawAffine method is:
%
% void DrawAffine(DrawingWand *drawing_wand,const AffineMatrix *affine)
%
% A description of each parameter follows:
%
% o drawing_wand: Drawing drawing_wand
%
% o affine: Affine matrix parameters
%
*/
WandExport void DrawAffine(DrawingWand *drawing_wand,
const AffineMatrix *affine)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
assert(affine != (const AffineMatrix *)NULL);
AdjustAffine(drawing_wand,affine );
(void) MvgPrintf(drawing_wand,"affine %.6g,%.6g,%.6g,%.6g,%.6g,%.6g\n",affine->sx,
affine->rx,affine->ry,affine->sy,affine->tx,affine->ty);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w A l l o c a t e W a n d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawAllocateWand() allocates an initial drawing wand which is an
% opaque handle required by the remaining drawing methods.
%
% The format of the DrawAllocateWand method is:
%
% DrawingWand DrawAllocateWand(const DrawInfo *draw_info,Image *image)
%
% A description of each parameter follows:
%
% o draw_info: Initial drawing defaults. Set to NULL to use
% ImageMagick defaults.
%
% o image: The image to draw on.
%
*/
WandExport DrawingWand *DrawAllocateWand(const DrawInfo *draw_info,Image *image)
{
DrawingWand
*drawing_wand;
drawing_wand=NewDrawingWand();
if (draw_info != (const DrawInfo *) NULL)
{
DestroyDrawInfo(CurrentContext);
CurrentContext=CloneDrawInfo((ImageInfo *) NULL,draw_info);
}
if (image != (Image *) NULL)
{
DestroyImage(drawing_wand->image);
drawing_wand->own_image=MagickFalse;
}
drawing_wand->image=image;
return drawing_wand;
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w A r c %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawArc() draws an arc falling within a specified bounding rectangle on the
% image.
%
% The format of the DrawArc method is:
%
% void DrawArc(DrawingWand *drawing_wand,const double sx,const double sy,
% const double ex,const double ey,const double sd,const double ed)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o sx: starting x ordinate of bounding rectangle
%
% o sy: starting y ordinate of bounding rectangle
%
% o ex: ending x ordinate of bounding rectangle
%
% o ey: ending y ordinate of bounding rectangle
%
% o sd: starting degrees of rotation
%
% o ed: ending degrees of rotation
%
*/
WandExport void DrawArc(DrawingWand *drawing_wand,const double sx,
const double sy,const double ex,const double ey,const double sd,
const double ed)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
(void) MvgPrintf(drawing_wand,"arc %.4g,%.4g %.4g,%.4g %.4g,%.4g\n",sx,sy,ex,ey,
sd,ed);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w B e z i e r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawBezier() draws a bezier curve through a set of points on the image.
%
% The format of the DrawBezier method is:
%
% void DrawBezier(DrawingWand *drawing_wand,
% const unsigned long number_coordinates,const PointInfo *coordinates)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o number_coordinates: number of coordinates
%
% o coordinates: coordinates
%
*/
WandExport void DrawBezier(DrawingWand *drawing_wand,
const unsigned long number_coordinates,const PointInfo *coordinates)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
assert(coordinates != (const PointInfo *) NULL);
MvgAppendPointsCommand(drawing_wand,"bezier",number_coordinates,coordinates);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w C i r c l e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawCircle() draws a circle on the image.
%
% The format of the DrawCircle method is:
%
% void DrawCircle(DrawingWand *drawing_wand,const double ox,
% const double oy,const double px, const double py)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o ox: origin x ordinate
%
% o oy: origin y ordinate
%
% o px: perimeter x ordinate
%
% o py: perimeter y ordinate
%
*/
WandExport void DrawCircle(DrawingWand *drawing_wand,const double ox,
const double oy,const double px,const double py)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
(void) MvgPrintf(drawing_wand, "circle %.4g,%.4g %.4g,%.4g\n",ox,oy,px,py);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w C l e a r E x c e p t i o n %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawClearException() clears any existing exception from the drawing wand.
%
% The format of the DrawGetException method is:
%
% MagickPassFail DrawClearException(DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport MagickBool DrawClearException(DrawingWand *drawing_wand)
{
DestroyExceptionInfo(&drawing_wand->exception);
GetExceptionInfo(&drawing_wand->exception);
return MagickPass;
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t C l i p P a t h %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetClipPath() obtains the current clipping path ID. The value returned
% must be deallocated by the user when it is no longer needed.
%
% The format of the DrawGetClipPath method is:
%
% char *DrawGetClipPath(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport char *DrawGetClipPath(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (CurrentContext->clip_path != (char *) NULL)
return((char *) AcquireString(CurrentContext->clip_path));
return((char *) NULL);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t C l i p P a t h %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetClipPath() associates a named clipping path with the image. Only
% the areas drawn on by the clipping path will be modified as long as it
% remains in effect.
%
% The format of the DrawSetClipPath method is:
%
% void DrawSetClipPath(DrawingWand *drawing_wand,const char *clip_path)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o clip_path: name of clipping path to associate with image
%
*/
WandExport void DrawSetClipPath(DrawingWand *drawing_wand,
const char *clip_path)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
assert(clip_path != (const char *) NULL);
if ((CurrentContext->clip_path == NULL) || drawing_wand->filter_off ||
LocaleCompare(CurrentContext->clip_path,clip_path) != 0)
{
(void) CloneString(&CurrentContext->clip_path,clip_path);
if (CurrentContext->clip_path == (char*)NULL)
ThrowException3(&drawing_wand->exception,ResourceLimitError,
MemoryAllocationFailed,UnableToDrawOnImage);
(void) MvgPrintf(drawing_wand,"clip-path url(#%s)\n",clip_path);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t C l i p R u l e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetClipRule() returns the current polygon fill rule to be used by the
% clipping path.
%
% The format of the DrawGetClipRule method is:
%
% FillRule DrawGetClipRule(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport FillRule DrawGetClipRule(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return(CurrentContext->fill_rule);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t C l i p R u l e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetClipRule() set the polygon fill rule to be used by the clipping path.
%
% The format of the DrawSetClipRule method is:
%
% void DrawSetClipRule(DrawingWand *drawing_wand,const FillRule fill_rule)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o fill_rule: fill rule (EvenOddRule or NonZeroRule)
%
*/
WandExport void DrawSetClipRule(DrawingWand *drawing_wand,
const FillRule fill_rule)
{
const char
*p=NULL;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->filter_off || (CurrentContext->fill_rule != fill_rule))
{
CurrentContext->fill_rule=fill_rule;
switch (fill_rule)
{
case EvenOddRule:
p="evenodd";
break;
case NonZeroRule:
p="nonzero";
break;
default:
break;
}
if (p != NULL)
(void) MvgPrintf(drawing_wand, "clip-rule %s\n", p);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t C l i p U n i t s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetClipUnits() returns the interpretation of clip path units.
%
% The format of the DrawGetClipUnits method is:
%
% ClipPathUnits DrawGetClipUnits(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport ClipPathUnits DrawGetClipUnits(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return(CurrentContext->clip_units);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t E x c e p t i o n %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetException() obtains error information associated with the last
% exception (if any). If an exception did occur, an allocated text string
% is returned which contains a detailed description of the exception. This
% string must be deallocated by the user once it is no longer needed.
%
% The format of the DrawGetException method is:
%
% char *DrawGetException(const DrawingWand *drawing_wand,
% ExceptionType *severity)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o severity: Enumeration corresponding to last thrown exception.
%
*/
WandExport char *DrawGetException(const DrawingWand *drawing_wand,
ExceptionType *severity)
{
char
buffer[MaxTextExtent],
*description;
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
assert(drawing_wand->exception.signature == MagickSignature);
description=(char *) NULL;
buffer[0]='\0';
*severity=drawing_wand->exception.severity;
if (drawing_wand->exception.severity != UndefinedException)
{
if (drawing_wand->exception.description)
FormatString(buffer,"%.1024s (%.1024s)",
drawing_wand->exception.reason,
drawing_wand->exception.description);
else
FormatString(buffer,"%.1024s",
drawing_wand->exception.reason);
CloneString(&description,buffer);
}
return(description);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t C l i p U n i t s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetClipUnits() sets the interpretation of clip path units.
%
% The format of the DrawSetClipUnits method is:
%
% void DrawSetClipUnits(DrawingWand *drawing_wand,
% const ClipPathUnits clip_units)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o clip_units: units to use (UserSpace, UserSpaceOnUse, or ObjectBoundingBox)
%
*/
WandExport void DrawSetClipUnits(DrawingWand *drawing_wand,
const ClipPathUnits clip_units)
{
const char
*p=NULL;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->filter_off || (CurrentContext->clip_units != clip_units))
{
CurrentContext->clip_units=clip_units;
if ( clip_units == ObjectBoundingBox )
{
AffineMatrix
affine;
GetAffineMatrix(&affine);
affine.sx=CurrentContext->bounds.x2;
affine.sy=CurrentContext->bounds.y2;
affine.tx=CurrentContext->bounds.x1;
affine.ty=CurrentContext->bounds.y1;
AdjustAffine( drawing_wand, &affine );
}
switch (clip_units)
{
case UserSpace:
p="userSpace";
break;
case UserSpaceOnUse:
p="userSpaceOnUse";
break;
case ObjectBoundingBox:
p="objectBoundingBox";
break;
}
if (p != NULL)
(void) MvgPrintf(drawing_wand, "clip-units %s\n", p);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w C o l o r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawColor() draws color on image using the current fill color, starting at
% specified position, and using specified paint method. The available paint
% methods are:
%
% PointMethod: Recolors the target pixel
% ReplaceMethod: Recolor any pixel that matches the target pixel.
% FloodfillMethod: Recolors target pixels and matching neighbors.
% FillToBorderMethod: Recolor target pixels and neighbors not matching
$ border color.
% ResetMethod: Recolor all pixels.
%
% The format of the DrawColor method is:
%
% void DrawColor(DrawingWand *drawing_wand,const double x,const double y,
% const PaintMethod paintMethod)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x: x ordinate
%
% o y: y ordinate
%
% o paintMethod: paint method
%
*/
WandExport void DrawColor(DrawingWand *drawing_wand,const double x,
const double y,const PaintMethod paintMethod)
{
const char
*p=NULL;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
switch (paintMethod)
{
case PointMethod:
p="point";
break;
case ReplaceMethod:
p="replace";
break;
case FloodfillMethod:
p="floodfill";
break;
case FillToBorderMethod:
p="filltoborder";
break;
case ResetMethod:
p="reset";
break;
}
if (p != NULL)
(void) MvgPrintf(drawing_wand, "color %.4g,%.4g %s\n", x, y, p);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w C o m m e n t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawComment() adds a comment to a vector output stream.
%
% The format of the DrawComment method is:
%
% void DrawComment(DrawingWand *drawing_wand,const char *comment)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o comment: comment text
%
*/
WandExport void DrawComment(DrawingWand *drawing_wand,const char* comment)
{
(void) MvgPrintf(drawing_wand,"#%s\n",comment);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w E l l i p s e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawEllipse() draws an ellipse on the image.
%
% The format of the DrawEllipse method is:
%
% void DrawEllipse(DrawingWand *drawing_wand,const double ox,
% const double oy,const double rx,const double ry,const double start,
% const double end)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o ox: origin x ordinate
%
% o oy: origin y ordinate
%
% o rx: radius in x
%
% o ry: radius in y
%
% o start: starting rotation in degrees
%
% o end: ending rotation in degrees
%
*/
WandExport void DrawEllipse(DrawingWand *drawing_wand,const double ox,
const double oy,const double rx,const double ry,const double start,
const double end)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
(void) MvgPrintf(drawing_wand,"ellipse %.4g,%.4g %.4g,%.4g %.4g,%.4g\n",ox,oy,rx,ry,
start,end);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t F i l l C o l o r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetFillColor() returns the fill color used for drawing filled objects.
%
% The format of the DrawGetFillColor method is:
%
% void DrawGetFillColor(const DrawingWand *drawing_wand,
% PixelWand *fill_color)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o fill_color: Return the fill color.
%
*/
WandExport void DrawGetFillColor(const DrawingWand *drawing_wand,
PixelWand *fill_color)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
PixelSetQuantumColor(fill_color,&CurrentContext->fill);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t F i l l C o l o r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetFillColor() sets the fill color to be used for drawing filled objects.
%
% The format of the DrawSetFillColor method is:
%
% void DrawSetFillColor(DrawingWand *drawing_wand,
% const PixelWand *fill_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o fill_wand: fill wand.
%
*/
WandExport void DrawSetFillColor(DrawingWand *drawing_wand,
const PixelWand *fill_wand)
{
PixelPacket
*current_fill,
fill_color,
new_fill;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
assert(fill_wand != (const PixelWand *) NULL);
PixelGetQuantumColor(fill_wand,&fill_color);
new_fill=fill_color;
if (new_fill.opacity != TransparentOpacity)
new_fill.opacity=CurrentContext->opacity;
current_fill=&CurrentContext->fill;
if (drawing_wand->filter_off || !WandColorMatch(current_fill,&new_fill))
{
CurrentContext->fill=new_fill;
(void) MvgPrintf(drawing_wand,"fill '");
MvgAppendColor(drawing_wand,&fill_color);
(void) MvgPrintf(drawing_wand,"'\n");
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t F i l l P a t t e r n U R L %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetFillPatternURL() sets the URL to use as a fill pattern for filling
% objects. Only local URLs ("#identifier") are supported at this time. These
% local URLs are normally created by defining a named fill pattern with
% DrawPushPattern/DrawPopPattern.
%
% The format of the DrawSetFillPatternURL method is:
%
% void DrawSetFillPatternURL(DrawingWand *drawing_wand,
% const char *fill_url)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o fill_url: URL to use to obtain fill pattern.
%
*/
WandExport void DrawSetFillPatternURL(DrawingWand *drawing_wand,
const char* fill_url)
{
char
pattern[MaxTextExtent];
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
assert(fill_url != NULL);
if (fill_url[0] != '#')
ThrowException(&drawing_wand->exception,DrawWarning,
NotARelativeURL,fill_url);
(void) FormatMagickString(pattern,MaxTextExtent,"[%.1024s]",fill_url+1);
if (GetImageAttribute(drawing_wand->image,pattern) == (ImageAttribute *) NULL)
{
ThrowException(&drawing_wand->exception,DrawWarning,
URLNotFound,fill_url);
}
else
{
char
pattern_spec[MaxTextExtent];
(void) FormatMagickString(pattern_spec,MaxTextExtent,"url(%.1024s)",
fill_url);
if (CurrentContext->fill.opacity != TransparentOpacity)
CurrentContext->fill.opacity=CurrentContext->opacity;
(void) MvgPrintf(drawing_wand,"fill %s\n",pattern_spec);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t F i l l O p a c i t y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetFillOpacity() returns the opacity used when drawing using the fill
% color or fill texture. Fully opaque is 1.0.
%
% The format of the DrawGetFillOpacity method is:
%
% double DrawGetFillOpacity(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport double DrawGetFillOpacity(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return((double) CurrentContext->opacity/MaxRGB);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t F i l l O p a c i t y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetFillOpacity() sets the opacity to use when drawing using the fill
% color or fill texture. Fully opaque is 1.0.
%
% The format of the DrawSetFillOpacity method is:
%
% void DrawSetFillOpacity(DrawingWand *drawing_wand,
% const double fill_opacity)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o fill_opacity: fill opacity
%
*/
WandExport void DrawSetFillOpacity(DrawingWand *drawing_wand,
const double fill_opacity)
{
Quantum
opacity;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
opacity=(Quantum)
((double) MaxRGB*(1.0-(fill_opacity <= 1.0 ? fill_opacity : 1.0 ))+0.5);
if (drawing_wand->filter_off || (CurrentContext->opacity != opacity))
{
CurrentContext->opacity=opacity;
(void) MvgPrintf(drawing_wand,"fill-opacity %.4g\n",fill_opacity);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t F i l l R u l e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetFillRule() returns the fill rule used while drawing polygons.
%
% The format of the DrawGetFillRule method is:
%
% FillRule DrawGetFillRule(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
*/
WandExport FillRule DrawGetFillRule(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return(CurrentContext->fill_rule);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t F i l l R u l e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetFillRule() sets the fill rule to use while drawing polygons.
%
% The format of the DrawSetFillRule method is:
%
% void DrawSetFillRule(DrawingWand *drawing_wand,const FillRule fill_rule)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o fill_rule: fill rule (EvenOddRule or NonZeroRule)
%
*/
WandExport void DrawSetFillRule(DrawingWand *drawing_wand,
const FillRule fill_rule)
{
const char
*p=NULL;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->filter_off || (CurrentContext->fill_rule != fill_rule))
{
CurrentContext->fill_rule=fill_rule;
switch (fill_rule)
{
case EvenOddRule:
p="evenodd";
break;
case NonZeroRule:
p="nonzero";
break;
default:
break;
}
if (p != NULL)
(void) MvgPrintf(drawing_wand,"fill-rule %s\n",p);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t F o n t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetFont() returns a null-terminaged string specifying the font used
% when annotating with text. The value returned must be freed by the user
% when no longer needed.
%
% The format of the DrawGetFont method is:
%
% char *DrawGetFont(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
*/
WandExport char *DrawGetFont(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (CurrentContext->font != (char *) NULL)
return(AcquireString(CurrentContext->font));
return((char *) NULL);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t F o n t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetFont() sets the fully-sepecified font to use when annotating with
% text.
%
% The format of the DrawSetFont method is:
%
% void DrawSetFont(DrawingWand *drawing_wand,const char *font_name)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o font_name: font name
%
*/
WandExport void DrawSetFont(DrawingWand *drawing_wand,const char *font_name)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
assert(font_name != (const char *) NULL);
if (drawing_wand->filter_off || (CurrentContext->font == NULL) ||
LocaleCompare(CurrentContext->font,font_name) != 0)
{
(void) CloneString(&CurrentContext->font,font_name);
if (CurrentContext->font == (char*)NULL)
ThrowException3(&drawing_wand->exception,ResourceLimitError,
MemoryAllocationFailed,UnableToDrawOnImage);
(void) MvgPrintf(drawing_wand,"font '%s'\n",font_name);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t F o n t F a m i l y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetFontFamily() returns the font family to use when annotating with text.
% The value returned must be freed by the user when it is no longer needed.
%
% The format of the DrawGetFontFamily method is:
%
% char *DrawGetFontFamily(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
*/
WandExport char *DrawGetFontFamily(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (CurrentContext->family != NULL)
return(AcquireString(CurrentContext->family));
return((char *) NULL);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t F o n t F a m i l y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetFontFamily() sets the font family to use when annotating with text.
%
% The format of the DrawSetFontFamily method is:
%
% void DrawSetFontFamily(DrawingWand *drawing_wand,const char *font_family)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o font_family: font family
%
*/
WandExport void DrawSetFontFamily(DrawingWand *drawing_wand,
const char *font_family)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
assert(font_family != (const char *) NULL);
if (drawing_wand->filter_off || (CurrentContext->family == NULL) ||
LocaleCompare(CurrentContext->family,font_family) != 0)
{
(void) CloneString(&CurrentContext->family,font_family);
if (CurrentContext->family == (char *) NULL)
ThrowException3(&drawing_wand->exception,ResourceLimitError,
MemoryAllocationFailed,UnableToDrawOnImage);
(void) MvgPrintf(drawing_wand,"font-family '%s'\n",font_family);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t F o n t S i z e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetFontSize() returns the font pointsize used when annotating with text.
%
% The format of the DrawGetFontSize method is:
%
% double DrawGetFontSize(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
*/
WandExport double DrawGetFontSize(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return(CurrentContext->pointsize);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t F o n t S i z e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetFontSize() sets the font pointsize to use when annotating with text.
%
% The format of the DrawSetFontSize method is:
%
% void DrawSetFontSize(DrawingWand *drawing_wand,const double pointsize)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o pointsize: text pointsize
%
*/
WandExport void DrawSetFontSize(DrawingWand *drawing_wand,
const double pointsize)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->filter_off ||
(AbsoluteValue(CurrentContext->pointsize-pointsize) > MagickEpsilon))
{
CurrentContext->pointsize=pointsize;
(void) MvgPrintf(drawing_wand,"font-size %.4g\n",pointsize);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t F o n t S t r e t c h %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetFontStretch() returns the font stretch used when annotating with text.
%
% The format of the DrawGetFontStretch method is:
%
% StretchType DrawGetFontStretch(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
*/
WandExport StretchType DrawGetFontStretch(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return(CurrentContext->stretch);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t F o n t S t r e t c h %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetFontStretch() sets the font stretch to use when annotating with text.
% The AnyStretch enumeration acts as a wild-card "don't care" option.
%
% The format of the DrawSetFontStretch method is:
%
% void DrawSetFontStretch(DrawingWand *drawing_wand,
% const StretchType font_stretch)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o font_stretch: font stretch (NormalStretch, UltraCondensedStretch,
% CondensedStretch, SemiCondensedStretch,
% SemiExpandedStretch, ExpandedStretch,
% ExtraExpandedStretch, UltraExpandedStretch, AnyStretch)
%
*/
WandExport void DrawSetFontStretch(DrawingWand *drawing_wand,
const StretchType font_stretch)
{
const char
*p=NULL;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->filter_off || (CurrentContext->stretch != font_stretch))
{
CurrentContext->stretch=font_stretch;
switch (font_stretch)
{
case NormalStretch:
p="normal";
break;
case UltraCondensedStretch:
p="ultra-condensed";
break;
case ExtraCondensedStretch:
p="extra-condensed";
break;
case CondensedStretch:
p="condensed";
break;
case SemiCondensedStretch:
p="semi-condensed";
break;
case SemiExpandedStretch:
p="semi-expanded";
break;
case ExpandedStretch:
p="expanded";
break;
case ExtraExpandedStretch:
p="extra-expanded";
break;
case UltraExpandedStretch:
p="ultra-expanded";
break;
case AnyStretch:
p="all";
break;
}
if (p != NULL)
(void) MvgPrintf(drawing_wand,"font-stretch '%s'\n",p);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t F o n t S t y l e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetFontStyle() returns the font style used when annotating with text.
%
% The format of the DrawGetFontStyle method is:
%
% StyleType DrawGetFontStyle(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
*/
WandExport StyleType DrawGetFontStyle(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return(CurrentContext->style);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t F o n t S t y l e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetFontStyle() sets the font style to use when annotating with text.
% The AnyStyle enumeration acts as a wild-card "don't care" option.
%
% The format of the DrawSetFontStyle method is:
%
% void DrawSetFontStyle(DrawingWand *drawing_wand,const StyleType style)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o style: font style (NormalStyle, ItalicStyle, ObliqueStyle, AnyStyle)
%
*/
WandExport void DrawSetFontStyle(DrawingWand *drawing_wand,
const StyleType style)
{
const char
*p=NULL;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->filter_off || (CurrentContext->style != style))
{
CurrentContext->style=style;
switch (style)
{
case NormalStyle:
p="normal";
break;
case ItalicStyle:
p="italic";
break;
case ObliqueStyle:
p="oblique";
break;
case AnyStyle:
p="all";
break;
}
if (p != NULL)
(void) MvgPrintf(drawing_wand, "font-style '%s'\n", p);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t F o n t W e i g h t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetFontWeight() returns the font weight used when annotating with text.
%
% The format of the DrawGetFontWeight method is:
%
% unsigned long DrawGetFontWeight(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
*/
WandExport unsigned long DrawGetFontWeight(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return(CurrentContext->weight);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t F o n t W e i g h t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetFontWeight() sets the font weight to use when annotating with text.
%
% The format of the DrawSetFontWeight method is:
%
% void DrawSetFontWeight(DrawingWand *drawing_wand,
% const unsigned long font_weight)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o font_weight: font weight (valid range 100-900)
%
*/
WandExport void DrawSetFontWeight(DrawingWand *drawing_wand,
const unsigned long font_weight)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->filter_off || (CurrentContext->weight != font_weight))
{
CurrentContext->weight=font_weight;
(void) MvgPrintf(drawing_wand,"font-weight %lu\n",font_weight);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t G r a v i t y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetGravity() returns the text placement gravity used when annotating
% with text.
%
% The format of the DrawGetGravity method is:
%
% GravityType DrawGetGravity(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
*/
WandExport GravityType DrawGetGravity(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return(CurrentContext->gravity);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t G r a v i t y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetGravity() sets the text placement gravity to use when annotating
% with text.
%
% The format of the DrawSetGravity method is:
%
% void DrawSetGravity(DrawingWand *drawing_wand,const GravityType gravity)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o gravity: positioning gravity (NorthWestGravity, NorthGravity,
% NorthEastGravity, WestGravity, CenterGravity,
% EastGravity, SouthWestGravity, SouthGravity,
% SouthEastGravity)
%
*/
WandExport void DrawSetGravity(DrawingWand *drawing_wand,
const GravityType gravity)
{
const char
*p=NULL;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->filter_off || (CurrentContext->gravity != gravity))
{
CurrentContext->gravity=gravity;
switch (gravity)
{
case NorthWestGravity:
p="NorthWest";
break;
case NorthGravity:
p="North";
break;
case NorthEastGravity:
p="NorthEast";
break;
case WestGravity:
p="West";
break;
case CenterGravity:
p="Center";
break;
case EastGravity:
p="East";
break;
case SouthWestGravity:
p="SouthWest";
break;
case SouthGravity:
p="South";
break;
case SouthEastGravity:
p="SouthEast";
break;
case StaticGravity:
case ForgetGravity:
{
}
break;
}
if (p != NULL)
(void) MvgPrintf(drawing_wand,"gravity %s\n",p);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w C o m p o s i t e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawComposite() composites an image onto the current image, using the
% specified composition operator, specified position, and at the specified
% size.
%
% The format of the DrawComposite method is:
%
% void DrawComposite(DrawingWand *drawing_wand,
% const CompositeOperator composite_operator,const double x,
% const double y,const double width,const double height,
% const Image *image)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o composite_operator: composition operator
%
% o x: x ordinate of top left corner
%
% o y: y ordinate of top left corner
%
% o width: Width to resize image to prior to compositing. Specify zero to
% use existing width.
%
% o height: Height to resize image to prior to compositing. Specify zero
% to use existing height.
%
% o image: Image to composite
%
*/
WandExport void DrawComposite(DrawingWand *drawing_wand,
const CompositeOperator composite_operator,const double x,const double y,
const double width,const double height,const Image *image)
{
ImageInfo
*image_info;
Image
*clone_image;
char
*media_type=NULL,
*base64=NULL;
const char
*mode=NULL;
unsigned char
*blob=(unsigned char *) NULL;
size_t
blob_length=2048,
encoded_length=0;
MonitorHandler
handler;
assert(drawing_wand != (DrawingWand *) NULL);
assert(image != (Image *) NULL);
assert(width != 0);
assert(height != 0);
assert(*image->magick != '\0');
clone_image=CloneImage(image,0,0,MagickTrue,&drawing_wand->exception);
if (!clone_image)
return;
image_info=CloneImageInfo((ImageInfo*)NULL);
if (!image_info)
ThrowException3(&drawing_wand->exception,ResourceLimitError,
MemoryAllocationFailed,UnableToDrawOnImage);
handler=SetMonitorHandler((MonitorHandler) NULL);
blob=(unsigned char*) ImageToBlob( image_info,clone_image,&blob_length,
&drawing_wand->exception);
(void) SetMonitorHandler(handler);
DestroyImageInfo(image_info);
DestroyImageList(clone_image);
if (!blob)
return;
base64=Base64Encode(blob,blob_length,&encoded_length);
blob=(unsigned char *) RelinquishMagickMemory(blob);
if (!base64)
{
char
buffer[MaxTextExtent];
(void) FormatMagickString(buffer,MaxTextExtent,"%ld bytes",
(4L*blob_length/3L+4L));
ThrowException(&drawing_wand->exception,ResourceLimitWarning,
MemoryAllocationFailed,buffer);
}
mode=CompositeOperatorToString(composite_operator);
media_type=MagickToMime(image->magick);
if (media_type != NULL)
{
char
*str;
int
remaining;
(void) MvgPrintf(drawing_wand,"image %s %.4g,%.4g %.4g,%.4g 'data:%s;base64,\n",
mode,x,y,width,height,media_type);
remaining=(int) encoded_length;
str=base64;
while ( remaining > 0 )
{
(void) MvgPrintf(drawing_wand,"%.76s", str);
remaining -= 76;
str += 76;
if (remaining > 0)
(void) MvgPrintf(drawing_wand,"\n");
}
(void) MvgPrintf(drawing_wand,"'\n");
}
media_type=(char *) RelinquishMagickMemory(media_type);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w L i n e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawLine() draws a line on the image using the current stroke color,
% stroke opacity, and stroke width.
%
% The format of the DrawLine method is:
%
% void DrawLine(DrawingWand *drawing_wand,const double sx,const double sy,
% const double ex,const double ey)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o sx: starting x ordinate
%
% o sy: starting y ordinate
%
% o ex: ending x ordinate
%
% o ey: ending y ordinate
%
*/
WandExport void DrawLine(DrawingWand *drawing_wand,const double sx,
const double sy,const double ex,const double ey)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
(void) MvgPrintf(drawing_wand,"line %.4g,%.4g %.4g,%.4g\n",sx,sy,ex,ey);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w M a t t e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawMatte() paints on the image's opacity channel in order to set effected
% pixels to transparent.
% to influence the opacity of pixels. The available paint
% methods are:
%
% PointMethod: Select the target pixel
% ReplaceMethod: Select any pixel that matches the target pixel.
% FloodfillMethod: Select the target pixel and matching neighbors.
% FillToBorderMethod: Select the target pixel and neighbors not matching
% border color.
% ResetMethod: Select all pixels.
%
% The format of the DrawMatte method is:
%
% void DrawMatte(DrawingWand *drawing_wand,const double x,const double y,
% const PaintMethod paint_method)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x: x ordinate
%
% o y: y ordinate
%
% o paint_method:
%
*/
WandExport void DrawMatte(DrawingWand *drawing_wand,const double x,
const double y,const PaintMethod paint_method)
{
const char
*p=NULL;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
switch (paint_method)
{
case PointMethod:
p="point";
break;
case ReplaceMethod:
p="replace";
break;
case FloodfillMethod:
p="floodfill";
break;
case FillToBorderMethod:
p="filltoborder";
break;
case ResetMethod:
p="reset";
break;
}
if (p != NULL)
(void) MvgPrintf(drawing_wand,"matte %.4g,%.4g %s\n",x,y,p);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h C l o s e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathClose() adds a path element to the current path which closes the
% current subpath by drawing a straight line from the current point to the
% current subpath's most recent starting point (usually, the most recent
% moveto point).
%
% The format of the DrawPathClose method is:
%
% void DrawPathClose(DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport void DrawPathClose(DrawingWand *drawing_wand)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
(void) MvgAutoWrapPrintf(drawing_wand,"%s",
drawing_wand->path_mode == AbsolutePathMode ? "Z" : "z");
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h C u r v e T o A b s o l u t e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathCurveToAbsolute() draws a cubic Bezier curve from the current
% point to (x,y) using (x1,y1) as the control point at the beginning of
% the curve and (x2,y2) as the control point at the end of the curve using
% absolute coordinates. At the end of the command, the new current point
% becomes the final (x,y) coordinate pair used in the polybezier.
%
% The format of the DrawPathCurveToAbsolute method is:
%
% void DrawPathCurveToAbsolute(DrawingWand *drawing_wand,const double x1,
% const double y1,const double x2,const double y2,const double x,
% const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x1: x ordinate of control point for curve beginning
%
% o y1: y ordinate of control point for curve beginning
%
% o x2: x ordinate of control point for curve ending
%
% o y2: y ordinate of control point for curve ending
%
% o x: x ordinate of the end of the curve
%
% o y: y ordinate of the end of the curve
%
*/
static void DrawPathCurveTo(DrawingWand *drawing_wand,const PathMode mode,
const double x1,const double y1,const double x2,const double y2,
const double x,const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if ((drawing_wand->path_operation != PathCurveToOperation) ||
(drawing_wand->path_mode != mode))
{
drawing_wand->path_operation=PathCurveToOperation;
drawing_wand->path_mode=mode;
(void) MvgAutoWrapPrintf(drawing_wand, "%c%.4g,%.4g %.4g,%.4g %.4g,%.4g",
mode == AbsolutePathMode ? 'C' : 'c',x1,y1,x2,y2,x,y);
}
else
(void) MvgAutoWrapPrintf(drawing_wand," %.4g,%.4g %.4g,%.4g %.4g,%.4g",
x1,y1,x2,y2,x,y);
}
WandExport void DrawPathCurveToAbsolute(DrawingWand *drawing_wand,
const double x1,const double y1,const double x2,const double y2,
const double x,const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
DrawPathCurveTo(drawing_wand,AbsolutePathMode,x1,y1,x2,y2,x,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h C u r v e T o R e l a t i v e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathCurveToRelative() draws a cubic Bezier curve from the current
% point to (x,y) using (x1,y1) as the control point at the beginning of
% the curve and (x2,y2) as the control point at the end of the curve using
% relative coordinates. At the end of the command, the new current point
% becomes the final (x,y) coordinate pair used in the polybezier.
%
% The format of the DrawPathCurveToRelative method is:
%
% void DrawPathCurveToRelative(DrawingWand *drawing_wand,const double x1,
% const double y1,const double x2,const double y2,const double x,
% const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x1: x ordinate of control point for curve beginning
%
% o y1: y ordinate of control point for curve beginning
%
% o x2: x ordinate of control point for curve ending
%
% o y2: y ordinate of control point for curve ending
%
% o x: x ordinate of the end of the curve
%
% o y: y ordinate of the end of the curve
%
*/
WandExport void DrawPathCurveToRelative(DrawingWand *drawing_wand,
const double x1,const double y1,const double x2,const double y2,
const double x,const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
DrawPathCurveTo(drawing_wand,RelativePathMode,x1,y1,x2,y2,x,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h C u r v e T o Q u a d r a t i c B e z i e r A b s o l u t e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathCurveToQuadraticBezierAbsolute() draws a quadratic Bezier curve
% from the current point to (x,y) using (x1,y1) as the control point using
% absolute coordinates. At the end of the command, the new current point
% becomes the final (x,y) coordinate pair used in the polybezier.
%
% The format of the DrawPathCurveToQuadraticBezierAbsolute method is:
%
% void DrawPathCurveToQuadraticBezierAbsolute(DrawingWand *drawing_wand,
% const double x1,const double y1,onst double x,const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x1: x ordinate of the control point
%
% o y1: y ordinate of the control point
%
% o x: x ordinate of final point
%
% o y: y ordinate of final point
%
*/
static void DrawPathCurveToQuadraticBezier(DrawingWand *drawing_wand,
const PathMode mode,const double x1,double y1,const double x,const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if ((drawing_wand->path_operation != PathCurveToQuadraticBezierOperation) ||
(drawing_wand->path_mode != mode))
{
drawing_wand->path_operation=PathCurveToQuadraticBezierOperation;
drawing_wand->path_mode=mode;
(void) MvgAutoWrapPrintf(drawing_wand, "%c%.4g,%.4g %.4g,%.4g",
mode == AbsolutePathMode ? 'Q' : 'q',x1,y1,x,y);
}
else
(void) MvgAutoWrapPrintf(drawing_wand," %.4g,%.4g %.4g,%.4g",x1,y1,x,y);
}
WandExport void DrawPathCurveToQuadraticBezierAbsolute(
DrawingWand *drawing_wand,const double x1,const double y1,const double x,
const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
DrawPathCurveToQuadraticBezier(drawing_wand,AbsolutePathMode,x1,y1,x,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h C u r v e T o Q u a d r a t i c B e z i e r R e l a t i v e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathCurveToQuadraticBezierRelative() draws a quadratic Bezier curve
% from the current point to (x,y) using (x1,y1) as the control point using
% relative coordinates. At the end of the command, the new current point
% becomes the final (x,y) coordinate pair used in the polybezier.
%
% The format of the DrawPathCurveToQuadraticBezierRelative method is:
%
% void DrawPathCurveToQuadraticBezierRelative(DrawingWand *drawing_wand,
% const double x1,const double y1,const double x,const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x1: x ordinate of the control point
%
% o y1: y ordinate of the control point
%
% o x: x ordinate of final point
%
% o y: y ordinate of final point
%
*/
WandExport void DrawPathCurveToQuadraticBezierRelative(
DrawingWand *drawing_wand,const double x1,const double y1,const double x,
const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
DrawPathCurveToQuadraticBezier(drawing_wand,RelativePathMode,x1,y1,x,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h C u r v e T o Q u a d r a t i c B e z i e r S m o o t h A b s o l u t e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathCurveToQuadraticBezierSmoothAbsolute() draws a quadratic
% Bezier curve (using absolute coordinates) from the current point to
% (x,y). The control point is assumed to be the reflection of the
% control point on the previous command relative to the current
% point. (If there is no previous command or if the previous command was
% not a DrawPathCurveToQuadraticBezierAbsolute,
% DrawPathCurveToQuadraticBezierRelative,
% DrawPathCurveToQuadraticBezierSmoothAbsolute or
% DrawPathCurveToQuadraticBezierSmoothRelative, assume the control point
% is coincident with the current point.). At the end of the command, the
% new current point becomes the final (x,y) coordinate pair used in the
% polybezier.
%
% The format of the DrawPathCurveToQuadraticBezierSmoothAbsolute method is:
%
% void DrawPathCurveToQuadraticBezierSmoothAbsolute(
% DrawingWand *drawing_wand,const double x,const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x: x ordinate of final point
%
% o y: y ordinate of final point
%
*/
static void DrawPathCurveToQuadraticBezierSmooth(DrawingWand *drawing_wand,
const PathMode mode,const double x,const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if ((drawing_wand->path_operation != PathCurveToQuadraticBezierSmoothOperation) ||
(drawing_wand->path_mode != mode))
{
drawing_wand->path_operation=PathCurveToQuadraticBezierSmoothOperation;
drawing_wand->path_mode=mode;
(void) MvgAutoWrapPrintf(drawing_wand, "%c%.4g,%.4g",
mode == AbsolutePathMode ? 'T' : 't',x,y);
}
else
(void) MvgAutoWrapPrintf(drawing_wand," %.4g,%.4g",x,y);
}
WandExport void DrawPathCurveToQuadraticBezierSmoothAbsolute(
DrawingWand *drawing_wand,const double x,const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
DrawPathCurveToQuadraticBezierSmooth(drawing_wand,AbsolutePathMode,x,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h C u r v e T o Q u a d r a t i c B e z i e r S m o o t h R e l a t i v e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathCurveToQuadraticBezierSmoothRelative() draws a quadratic
% Bezier curve (using relative coordinates) from the current point to
% (x,y). The control point is assumed to be the reflection of the
% control point on the previous command relative to the current
% point. (If there is no previous command or if the previous command was
% not a DrawPathCurveToQuadraticBezierAbsolute,
% DrawPathCurveToQuadraticBezierRelative,
% DrawPathCurveToQuadraticBezierSmoothAbsolute or
% DrawPathCurveToQuadraticBezierSmoothRelative, assume the control point
% is coincident with the current point.). At the end of the command, the
% new current point becomes the final (x,y) coordinate pair used in the
% polybezier.
%
% The format of the DrawPathCurveToQuadraticBezierSmoothRelative method is:
%
% void DrawPathCurveToQuadraticBezierSmoothRelative(
% DrawingWand *drawing_wand,const double x,const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x: x ordinate of final point
%
% o y: y ordinate of final point
%
%
*/
WandExport void DrawPathCurveToQuadraticBezierSmoothRelative(
DrawingWand *drawing_wand,const double x,const double y)
{
DrawPathCurveToQuadraticBezierSmooth(drawing_wand,RelativePathMode,x,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h C u r v e T o S m o o t h A b s o l u t e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathCurveToSmoothAbsolute() draws a cubic Bezier curve from the
% current point to (x,y) using absolute coordinates. The first control
% point is assumed to be the reflection of the second control point on
% the previous command relative to the current point. (If there is no
% previous command or if the previous command was not an
% DrawPathCurveToAbsolute, DrawPathCurveToRelative,
% DrawPathCurveToSmoothAbsolute or DrawPathCurveToSmoothRelative, assume
% the first control point is coincident with the current point.) (x2,y2)
% is the second control point (i.e., the control point at the end of the
% curve). At the end of the command, the new current point becomes the
% final (x,y) coordinate pair used in the polybezier.
%
% The format of the DrawPathCurveToSmoothAbsolute method is:
%
% void DrawPathCurveToSmoothAbsolute(DrawingWand *drawing_wand,
% const double x2const double y2,const double x,const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x2: x ordinate of second control point
%
% o y2: y ordinate of second control point
%
% o x: x ordinate of termination point
%
% o y: y ordinate of termination point
%
%
*/
static void DrawPathCurveToSmooth(DrawingWand *drawing_wand,const PathMode mode,
const double x2,const double y2,const double x,const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if ((drawing_wand->path_operation != PathCurveToSmoothOperation) ||
(drawing_wand->path_mode != mode))
{
drawing_wand->path_operation=PathCurveToSmoothOperation;
drawing_wand->path_mode=mode;
(void) MvgAutoWrapPrintf(drawing_wand,"%c%.4g,%.4g %.4g,%.4g",
mode == AbsolutePathMode ? 'S' : 's',x2,y2,x,y);
}
else
(void) MvgAutoWrapPrintf(drawing_wand," %.4g,%.4g %.4g,%.4g",x2,y2,x,y);
}
WandExport void DrawPathCurveToSmoothAbsolute(DrawingWand *drawing_wand,
const double x2,const double y2,const double x,const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
DrawPathCurveToSmooth(drawing_wand,AbsolutePathMode,x2,y2,x,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h C u r v e T o S m o o t h R e l a t i v e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathCurveToSmoothRelative() draws a cubic Bezier curve from the
% current point to (x,y) using relative coordinates. The first control
% point is assumed to be the reflection of the second control point on
% the previous command relative to the current point. (If there is no
% previous command or if the previous command was not an
% DrawPathCurveToAbsolute, DrawPathCurveToRelative,
% DrawPathCurveToSmoothAbsolute or DrawPathCurveToSmoothRelative, assume
% the first control point is coincident with the current point.) (x2,y2)
% is the second control point (i.e., the control point at the end of the
% curve). At the end of the command, the new current point becomes the
% final (x,y) coordinate pair used in the polybezier.
%
% The format of the DrawPathCurveToSmoothRelative method is:
%
% void DrawPathCurveToSmoothRelative(DrawingWand *drawing_wand,
% const double x2,const double y2,const double x,const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x2: x ordinate of second control point
%
% o y2: y ordinate of second control point
%
% o x: x ordinate of termination point
%
% o y: y ordinate of termination point
%
%
*/
WandExport void DrawPathCurveToSmoothRelative(DrawingWand *drawing_wand,
const double x2,const double y2,const double x,const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
DrawPathCurveToSmooth(drawing_wand,RelativePathMode,x2,y2,x,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h E l l i p t i c A r c A b s o l u t e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathEllipticArcAbsolute() draws an elliptical arc from the current
% point to (x, y) using absolute coordinates. The size and orientation
% of the ellipse are defined by two radii (rx, ry) and an
% xAxisRotation, which indicates how the ellipse as a whole is rotated
% relative to the current coordinate system. The center (cx, cy) of the
% ellipse is calculated automatically to satisfy the constraints imposed
% by the other parameters. largeArcFlag and sweepFlag contribute to the
% automatic calculations and help determine how the arc is drawn. If
% largeArcFlag is true then draw the larger of the available arcs. If
% sweepFlag is true, then draw the arc matching a clock-wise rotation.
%
% The format of the DrawPathEllipticArcAbsolute method is:
%
% void DrawPathEllipticArcAbsolute(DrawingWand *drawing_wand,
% const double rx,const double ry,const double x_axis_rotation,
% unsigned int large_arc_flag,unsigned int sweep_flag,const double x,
% const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o rx: x radius
%
% o ry: y radius
%
% o x_axis_rotation: indicates how the ellipse as a whole is rotated
% relative to the current coordinate system
%
% o large_arc_flag: If non-zero (true) then draw the larger of the
% available arcs
%
% o sweep_flag: If non-zero (true) then draw the arc matching a
% clock-wise rotation
%
%
*/
static void DrawPathEllipticArc(DrawingWand *drawing_wand, const PathMode mode,
const double rx,const double ry,const double x_axis_rotation,
unsigned int large_arc_flag,unsigned int sweep_flag,const double x,
const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if ((drawing_wand->path_operation != PathEllipticArcOperation) ||
(drawing_wand->path_mode != mode))
{
drawing_wand->path_operation=PathEllipticArcOperation;
drawing_wand->path_mode=mode;
(void) MvgAutoWrapPrintf(drawing_wand, "%c%.4g,%.4g %.4g %u %u %.4g,%.4g",
mode == AbsolutePathMode ? 'A' : 'a',rx,ry,x_axis_rotation,
large_arc_flag,sweep_flag,x,y);
}
else
(void) MvgAutoWrapPrintf(drawing_wand," %.4g,%.4g %.4g %u %u %.4g,%.4g",rx,ry,
x_axis_rotation,large_arc_flag,sweep_flag,x,y);
}
WandExport void DrawPathEllipticArcAbsolute(DrawingWand *drawing_wand,
const double rx,const double ry,const double x_axis_rotation,
unsigned int large_arc_flag,unsigned int sweep_flag,const double x,
const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
DrawPathEllipticArc(drawing_wand,AbsolutePathMode,rx,ry,x_axis_rotation,
large_arc_flag,sweep_flag,x,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h E l l i p t i c A r c R e l a t i v e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathEllipticArcRelative() draws an elliptical arc from the current
% point to (x, y) using relative coordinates. The size and orientation
% of the ellipse are defined by two radii (rx, ry) and an
% xAxisRotation, which indicates how the ellipse as a whole is rotated
% relative to the current coordinate system. The center (cx, cy) of the
% ellipse is calculated automatically to satisfy the constraints imposed
% by the other parameters. largeArcFlag and sweepFlag contribute to the
% automatic calculations and help determine how the arc is drawn. If
% largeArcFlag is true then draw the larger of the available arcs. If
% sweepFlag is true, then draw the arc matching a clock-wise rotation.
%
% The format of the DrawPathEllipticArcRelative method is:
%
% void DrawPathEllipticArcRelative(DrawingWand *drawing_wand,
% const double rx,const double ry,const double x_axis_rotation,
% unsigned int large_arc_flag,unsigned int sweep_flag,const double x,
% const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o rx: x radius
%
% o ry: y radius
%
% o x_axis_rotation: indicates how the ellipse as a whole is rotated
% relative to the current coordinate system
%
% o large_arc_flag: If non-zero (true) then draw the larger of the
% available arcs
%
% o sweep_flag: If non-zero (true) then draw the arc matching a
% clock-wise rotation
%
*/
WandExport void DrawPathEllipticArcRelative(DrawingWand *drawing_wand,
const double rx,const double ry,const double x_axis_rotation,
unsigned int large_arc_flag,unsigned int sweep_flag,const double x,
const double y)
{
DrawPathEllipticArc(drawing_wand,RelativePathMode,rx,ry,x_axis_rotation,
large_arc_flag,sweep_flag,x,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h F i n i s h %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathFinish() terminates the current path.
%
% The format of the DrawPathFinish method is:
%
% void DrawPathFinish(DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport void DrawPathFinish(DrawingWand *drawing_wand)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
(void) MvgPrintf(drawing_wand,"'\n");
drawing_wand->path_operation=PathDefaultOperation;
drawing_wand->path_mode=DefaultPathMode;
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h L i n e T o A b s o l u t e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathLineToAbsolute() draws a line path from the current point to the
% given coordinate using absolute coordinates. The coordinate then becomes
% the new current point.
%
% The format of the DrawPathLineToAbsolute method is:
%
% void DrawPathLineToAbsolute(DrawingWand *drawing_wand,const double x,const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x: target x ordinate
%
% o y: target y ordinate
%
*/
static void DrawPathLineTo(DrawingWand *drawing_wand,const PathMode mode,
const double x,const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if ((drawing_wand->path_operation != PathLineToOperation) ||
(drawing_wand->path_mode != mode))
{
drawing_wand->path_operation=PathLineToOperation;
drawing_wand->path_mode=mode;
(void) MvgAutoWrapPrintf(drawing_wand,"%c%.4g,%.4g",
mode == AbsolutePathMode ? 'L' : 'l',x,y);
}
else
(void) MvgAutoWrapPrintf(drawing_wand," %.4g,%.4g",x,y);
}
WandExport void DrawPathLineToAbsolute(DrawingWand *drawing_wand,
const double x,const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
DrawPathLineTo(drawing_wand,AbsolutePathMode,x,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h L i n e T o R e l a t i v e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathLineToRelative() draws a line path from the current point to the
% given coordinate using relative coordinates. The coordinate then becomes
% the new current point.
%
% The format of the DrawPathLineToRelative method is:
%
% void DrawPathLineToRelative(DrawingWand *drawing_wand,const double x,
% const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x: target x ordinate
%
% o y: target y ordinate
%
*/
WandExport void DrawPathLineToRelative(DrawingWand *drawing_wand,
const double x,const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
DrawPathLineTo(drawing_wand,RelativePathMode,x,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h L i n e T o H o r i z o n t a l A b s o l u t e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathLineToHorizontalAbsolute() draws a horizontal line path from the
% current point to the target point using absolute coordinates. The target
% point then becomes the new current point.
%
% The format of the DrawPathLineToHorizontalAbsolute method is:
%
% void DrawPathLineToHorizontalAbsolute(DrawingWand *drawing_wand,
% const PathMode mode,const double x)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x: target x ordinate
%
*/
static void DrawPathLineToHorizontal(DrawingWand *drawing_wand,
const PathMode mode,const double x)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if ((drawing_wand->path_operation != PathLineToHorizontalOperation) ||
(drawing_wand->path_mode != mode))
{
drawing_wand->path_operation=PathLineToHorizontalOperation;
drawing_wand->path_mode=mode;
(void) MvgAutoWrapPrintf(drawing_wand,"%c%.4g",
mode == AbsolutePathMode ? 'H' : 'h',x);
}
else
(void) MvgAutoWrapPrintf(drawing_wand," %.4g",x);
}
WandExport void DrawPathLineToHorizontalAbsolute(DrawingWand *drawing_wand,
const double x)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
DrawPathLineToHorizontal(drawing_wand,AbsolutePathMode,x);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h L i n e T o H o r i z o n t a l R e l a t i v e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathLineToHorizontalRelative() draws a horizontal line path from the
% current point to the target point using relative coordinates. The target
% point then becomes the new current point.
%
% The format of the DrawPathLineToHorizontalRelative method is:
%
% void DrawPathLineToHorizontalRelative(DrawingWand *drawing_wand,
% const double x)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x: target x ordinate
%
*/
WandExport void DrawPathLineToHorizontalRelative(DrawingWand *drawing_wand,
const double x)
{
DrawPathLineToHorizontal(drawing_wand,RelativePathMode,x);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h L i n e T o V e r t i c a l A b s o l u t e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathLineToVerticalAbsolute() draws a vertical line path from the
% current point to the target point using absolute coordinates. The target
% point then becomes the new current point.
%
% The format of the DrawPathLineToVerticalAbsolute method is:
%
% void DrawPathLineToVerticalAbsolute(DrawingWand *drawing_wand,
% const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o y: target y ordinate
%
*/
static void DrawPathLineToVertical(DrawingWand *drawing_wand,
const PathMode mode,const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if ((drawing_wand->path_operation != PathLineToVerticalOperation) ||
(drawing_wand->path_mode != mode))
{
drawing_wand->path_operation=PathLineToVerticalOperation;
drawing_wand->path_mode=mode;
(void) MvgAutoWrapPrintf(drawing_wand,"%c%.4g",
mode == AbsolutePathMode ? 'V' : 'v',y);
}
else
(void) MvgAutoWrapPrintf(drawing_wand," %.4g",y);
}
WandExport void DrawPathLineToVerticalAbsolute(DrawingWand *drawing_wand,
const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
DrawPathLineToVertical(drawing_wand,AbsolutePathMode,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h L i n e T o V e r t i c a l R e l a t i v e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathLineToVerticalRelative() draws a vertical line path from the
% current point to the target point using relative coordinates. The target
% point then becomes the new current point.
%
% The format of the DrawPathLineToVerticalRelative method is:
%
% void DrawPathLineToVerticalRelative(DrawingWand *drawing_wand,
% const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o y: target y ordinate
%
*/
WandExport void DrawPathLineToVerticalRelative(DrawingWand *drawing_wand,
const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
DrawPathLineToVertical(drawing_wand,RelativePathMode,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h M o v e T o A b s o l u t e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathMoveToAbsolute() starts a new sub-path at the given coordinate
% using absolute coordinates. The current point then becomes the
% specified coordinate.
%
% The format of the DrawPathMoveToAbsolute method is:
%
% void DrawPathMoveToAbsolute(DrawingWand *drawing_wand,const double x,
% const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x: target x ordinate
%
% o y: target y ordinate
%
*/
static void DrawPathMoveTo(DrawingWand *drawing_wand,const PathMode mode,
const double x,const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if ((drawing_wand->path_operation != PathMoveToOperation) ||
(drawing_wand->path_mode != mode))
{
drawing_wand->path_operation=PathMoveToOperation;
drawing_wand->path_mode=mode;
(void) MvgAutoWrapPrintf(drawing_wand,"%c%.4g,%.4g",
mode == AbsolutePathMode ? 'M' : 'm',x,y);
}
else
(void) MvgAutoWrapPrintf(drawing_wand," %.4g,%.4g",x,y);
}
WandExport void DrawPathMoveToAbsolute(DrawingWand *drawing_wand,
const double x,const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
DrawPathMoveTo(drawing_wand,AbsolutePathMode,x,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h M o v e T o R e l a t i v e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathMoveToRelative() starts a new sub-path at the given coordinate
% using relative coordinates. The current point then becomes the
% specified coordinate.
%
% The format of the DrawPathMoveToRelative method is:
%
% void DrawPathMoveToRelative(DrawingWand *drawing_wand,const double x,
% const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x: target x ordinate
%
% o y: target y ordinate
%
*/
WandExport void DrawPathMoveToRelative(DrawingWand *drawing_wand,
const double x,const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
DrawPathMoveTo(drawing_wand,RelativePathMode,x,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P a t h S t a r t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPathStart() declares the start of a path drawing list which is terminated
% by a matching DrawPathFinish() command. All other DrawPath commands must
% be enclosed between a DrawPathStart() and a DrawPathFinish() command. This
% is because path drawing commands are subordinate commands and they do not
% function by themselves.
%
% The format of the DrawPathStart method is:
%
% void DrawPathStart(DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport void DrawPathStart(DrawingWand *drawing_wand)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
(void) MvgPrintf(drawing_wand,"path '");
drawing_wand->path_operation=PathDefaultOperation;
drawing_wand->path_mode=DefaultPathMode;
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P e e k G r a p h i c C o n t e x t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPeekGraphicContext() returns the current graphic drawing_wand.
%
% The format of the DrawPeekGraphicContext method is:
%
% DrawInfo *DrawPeekGraphicContext(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport DrawInfo *DrawPeekGraphicContext(const DrawingWand *drawing_wand)
{
DrawInfo
*draw_info;
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
draw_info=CloneDrawInfo((ImageInfo *) NULL,CurrentContext);
(void) CloneString(&draw_info->primitive,drawing_wand->mvg);
return(draw_info);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P o i n t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPoint() draws a point using the current stroke color and stroke
% thickness at the specified coordinates.
%
% The format of the DrawPoint method is:
%
% void DrawPoint(DrawingWand *drawing_wand,const double x,const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x: target x coordinate
%
% o y: target y coordinate
%
*/
WandExport void DrawPoint(DrawingWand *drawing_wand,const double x,
const double y)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
(void) MvgPrintf(drawing_wand,"point %.4g,%.4g\n",x,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P o l y g o n %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPolygon() draws a polygon using the current stroke, stroke width, and
% fill color or texture, using the specified array of coordinates.
%
% The format of the DrawPolygon method is:
%
% void DrawPolygon(DrawingWand *drawing_wand,
% const unsigned long number_coordinates,const PointInfo *coordinates)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o number_coordinates: number of coordinates
%
% o coordinates: coordinate array
%
*/
WandExport void DrawPolygon(DrawingWand *drawing_wand,
const unsigned long number_coordinates,const PointInfo *coordinates)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
MvgAppendPointsCommand(drawing_wand,"polygon",number_coordinates,coordinates);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P o l y l i n e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPolyline() draws a polyline using the current stroke, stroke width, and
% fill color or texture, using the specified array of coordinates.
%
% The format of the DrawPolyline method is:
%
% void DrawPolyline(DrawingWand *drawing_wand,
% const unsigned long number_coordinates,const PointInfo *coordinates)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o number_coordinates: number of coordinates
%
% o coordinates: coordinate array
%
*/
WandExport void DrawPolyline(DrawingWand *drawing_wand,
const unsigned long number_coordinates,const PointInfo *coordinates)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
MvgAppendPointsCommand(drawing_wand,"polyline",number_coordinates,
coordinates);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P o p C l i p P a t h %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPopClipPath() terminates a clip path definition.
%
% The format of the DrawPopClipPath method is:
%
% void DrawPopClipPath(DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport void DrawPopClipPath(DrawingWand *drawing_wand)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->indent_depth > 0)
drawing_wand->indent_depth--;
(void) MvgPrintf(drawing_wand,"pop clip-path\n");
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P o p D e f s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPopDefs() terminates a definition list
%
% The format of the DrawPopDefs method is:
%
% void DrawPopDefs(DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport void DrawPopDefs(DrawingWand *drawing_wand)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->indent_depth > 0)
drawing_wand->indent_depth--;
(void) MvgPrintf(drawing_wand,"pop defs\n");
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P o p G r a p h i c C o n t e x t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPopGraphicContext() destroys the current drawing_wand returning to the
% previously pushed drawing wand. Multiple drawing wand may exist. It is an
% error to attempt to pop more drawing_wands than have been pushed, and it is
% proper form to pop all drawing_wands which have been pushed.
%
% The format of the DrawPopGraphicContext method is:
%
% void DrawPopGraphicContext(DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport void DrawPopGraphicContext(DrawingWand *drawing_wand)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->index <= 0)
{
ThrowException(&drawing_wand->exception,DrawError,
UnbalancedGraphicContextPushPop,NULL);
}
else
{
/* Destroy clip path if not same in preceding drawing_wand */
DestroyDrawInfo(CurrentContext);
CurrentContext=(DrawInfo*)NULL;
drawing_wand->index--;
if (drawing_wand->indent_depth > 0)
drawing_wand->indent_depth--;
(void) MvgPrintf(drawing_wand,"pop graphic-context\n");
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P o p P a t t e r n %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPopPattern() terminates a pattern definition.
%
% The format of the DrawPopPattern method is:
%
% void DrawPopPattern(DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport void DrawPopPattern(DrawingWand *drawing_wand)
{
char
geometry[MaxTextExtent],
key[MaxTextExtent];
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->pattern_id == NULL)
ThrowException(&drawing_wand->exception,DrawWarning,
NotCurrentlyPushingPatternDefinition,NULL);
(void) FormatMagickString(key,MaxTextExtent,"[%.1024s]",
drawing_wand->pattern_id);
(void) SetImageAttribute(drawing_wand->image,key,
drawing_wand->mvg+drawing_wand->pattern_offset);
(void) FormatMagickString(geometry,MaxTextExtent,"%lux%lu%+ld%+ld",
drawing_wand->pattern_bounds.width,drawing_wand->pattern_bounds.height,
drawing_wand->pattern_bounds.x,drawing_wand->pattern_bounds.y);
(void) SetImageAttribute(drawing_wand->image,key,geometry);
drawing_wand->pattern_id=(char *) RelinquishMagickMemory(drawing_wand->pattern_id);
drawing_wand->pattern_id=NULL;
drawing_wand->pattern_offset=0;
drawing_wand->pattern_bounds.x=0;
drawing_wand->pattern_bounds.y=0;
drawing_wand->pattern_bounds.width=0;
drawing_wand->pattern_bounds.height=0;
drawing_wand->filter_off=MagickFalse;
if (drawing_wand->indent_depth > 0)
drawing_wand->indent_depth--;
(void) MvgPrintf(drawing_wand,"pop pattern\n");
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P u s h C l i p P a t h %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPushClipPath() starts a clip path definition which is comprized of
% any number of drawing commands and terminated by a DrawPopClipPath()
% command.
%
% The format of the DrawPushClipPath method is:
%
% void DrawPushClipPath(DrawingWand *drawing_wand,const char *clip_path_id)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o clip_path_id: string identifier to associate with the clip path for
% later use.
%
*/
WandExport void DrawPushClipPath(DrawingWand *drawing_wand,
const char *clip_path_id)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
assert(clip_path_id != (const char *) NULL);
(void) MvgPrintf(drawing_wand,"push clip-path %s\n",clip_path_id);
drawing_wand->indent_depth++;
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P u s h D e f s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPushDefs() indicates that commands up to a terminating DrawPopDefs()
% command create named elements (e.g. clip-paths, textures, etc.) which
% may safely be processed earlier for the sake of efficiency.
%
% The format of the DrawPushDefs method is:
%
% void DrawPushDefs(DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport void DrawPushDefs(DrawingWand *drawing_wand)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
(void) MvgPrintf(drawing_wand,"push defs\n");
drawing_wand->indent_depth++;
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P u s h G r a p h i c C o n t e x t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPushGraphicContext() clones the current drawing wand to create a
% new drawing wand. The original drawing drawing_wand(s) may be returned to
% by invoking DrawPopGraphicContext(). The drawing wands are stored on a
% drawing wand stack. For every Pop there must have already been an
% equivalent Push.
%
% The format of the DrawPushGraphicContext method is:
%
% void DrawPushGraphicContext(DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport void DrawPushGraphicContext(DrawingWand *drawing_wand)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
drawing_wand->index++;
drawing_wand->graphic_context=(DrawInfo **) ResizeMagickMemory(
drawing_wand->graphic_context,(drawing_wand->index+1)*sizeof(DrawInfo *));
if (drawing_wand->graphic_context == (DrawInfo **) NULL)
ThrowException3(&drawing_wand->exception,ResourceLimitError,
MemoryAllocationFailed,UnableToDrawOnImage);
CurrentContext=CloneDrawInfo((ImageInfo *) NULL,
drawing_wand->graphic_context[drawing_wand->index-1]);
(void) MvgPrintf(drawing_wand,"push graphic-context\n");
drawing_wand->indent_depth++;
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w P u s h P a t t e r n %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawPushPattern() indicates that subsequent commands up to a
% DrawPopPattern() command comprise the definition of a named pattern.
% The pattern space is assigned top left corner coordinates, a width
% and height, and becomes its own drawing space. Anything which can
% be drawn may be used in a pattern definition.
% Named patterns may be used as stroke or brush definitions.
%
% The format of the DrawPushPattern method is:
%
% void DrawPushPattern(DrawingWand *drawing_wand,const char *pattern_id,
% const double x,const double y,const double width,const double height)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o pattern_id: pattern identification for later reference
%
% o x: x ordinate of top left corner
%
% o y: y ordinate of top left corner
%
% o width: width of pattern space
%
% o height: height of pattern space
%
*/
WandExport void DrawPushPattern(DrawingWand *drawing_wand,
const char *pattern_id,const double x,const double y,const double width,
const double height)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
assert(pattern_id != (const char *) NULL);
if (drawing_wand->pattern_id != NULL)
ThrowException(&drawing_wand->exception,DrawError,
AlreadyPushingPatternDefinition,drawing_wand->pattern_id);
drawing_wand->filter_off=MagickTrue;
(void) MvgPrintf(drawing_wand,"push pattern %s %.4g,%.4g %.4g,%.4g\n",pattern_id,
x,y,width,height);
drawing_wand->indent_depth++;
drawing_wand->pattern_id=AcquireString(pattern_id);
drawing_wand->pattern_bounds.x=(long) ceil(x-0.5);
drawing_wand->pattern_bounds.y=(long) ceil(y-0.5);
drawing_wand->pattern_bounds.width=(unsigned long) (width+0.5);
drawing_wand->pattern_bounds.height=(unsigned long) (height+0.5);
drawing_wand->pattern_offset=drawing_wand->mvg_length;
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w R e c t a n g l e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawRectangle() draws a rectangle given two coordinates and using
% the current stroke, stroke width, and fill settings.
%
% The format of the DrawRectangle method is:
%
% void DrawRectangle(DrawingWand *drawing_wand,const double x1,
% const double y1,const double x2,const double y2)
%
% A description of each parameter follows:
%
% o x1: x ordinate of first coordinate
%
% o y1: y ordinate of first coordinate
%
% o x2: x ordinate of second coordinate
%
% o y2: y ordinate of second coordinate
%
*/
WandExport void DrawRectangle(DrawingWand *drawing_wand,const double x1,
const double y1,const double x2,const double y2)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
(void) MvgPrintf(drawing_wand,"rectangle %.4g,%.4g %.4g,%.4g\n",x1,y1,x2,y2);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w R e n d e r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawRender() renders all preceding drawing commands onto the image.
%
% The format of the DrawRender method is:
%
% unsigned int DrawRender(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport unsigned int DrawRender(const DrawingWand *drawing_wand)
{
MagickPassFail
status;
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
CurrentContext->primitive=drawing_wand->mvg;
(void) LogMagickEvent(DrawEvent,GetMagickModule(),"MVG:\n'%s'\n",
drawing_wand->mvg);
status=DrawImage(drawing_wand->image, CurrentContext);
CurrentContext->primitive=(char *) NULL;
return status;
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w R o t a t e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawRotate() applies the specified rotation to the current coordinate space.
%
% The format of the DrawRotate method is:
%
% void DrawRotate(DrawingWand *drawing_wand,const double degrees)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o degrees: degrees of rotation
%
*/
WandExport void DrawRotate(DrawingWand *drawing_wand,const double degrees)
{
AffineMatrix
affine;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
GetAffineMatrix(&affine);
affine.sx=cos(DegreesToRadians(fmod(degrees,360.0)));
affine.rx=sin(DegreesToRadians(fmod(degrees,360.0)));
affine.ry=(-sin(DegreesToRadians(fmod(degrees,360.0))));
affine.sy=cos(DegreesToRadians(fmod(degrees,360.0)));
AdjustAffine(drawing_wand,&affine);
(void) MvgPrintf(drawing_wand,"rotate %.4g\n",degrees);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w R o u n d R e c t a n g l e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawRoundRectangle() draws a rounted rectangle given two coordinates,
% x & y corner radiuses and using the current stroke, stroke width,
% and fill settings.
%
% The format of the DrawRoundRectangle method is:
%
% void DrawRoundRectangle(DrawingWand *drawing_wand,double x1,double y1,
% double x2,double y2,double rx,double ry)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x1: x ordinate of first coordinate
%
% o y1: y ordinate of first coordinate
%
% o x2: x ordinate of second coordinate
%
% o y2: y ordinate of second coordinate
%
% o rx: radius of corner in horizontal direction
%
% o ry: radius of corner in vertical direction
%
*/
WandExport void DrawRoundRectangle(DrawingWand *drawing_wand,double x1,
double y1,double x2,double y2,double rx,double ry)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
(void) MvgPrintf(drawing_wand,"roundrectangle %.4g,%.4g %.4g,%.4g %.4g,%.4g\n",
x1,y1,x2,y2,rx,ry);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S c a l e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawScale() adjusts the scaling factor to apply in the horizontal and
% vertical directions to the current coordinate space.
%
% The format of the DrawScale method is:
%
% void DrawScale(DrawingWand *drawing_wand,const double x,const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x: horizontal scale factor
%
% o y: vertical scale factor
%
*/
WandExport void DrawScale(DrawingWand *drawing_wand,const double x,
const double y)
{
AffineMatrix
affine;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
GetAffineMatrix(&affine);
affine.sx=x;
affine.sy=y;
AdjustAffine( drawing_wand, &affine );
(void) MvgPrintf(drawing_wand,"scale %.4g,%.4g\n",x,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S k e w X %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSkewX() skews the current coordinate system in the horizontal
% direction.
%
% The format of the DrawSkewX method is:
%
% void DrawSkewX(DrawingWand *drawing_wand,const double degrees)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o degrees: number of degrees to skew the coordinates
%
*/
WandExport void DrawSkewX(DrawingWand *drawing_wand,const double degrees)
{
AffineMatrix
affine;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
GetAffineMatrix(&affine);
affine.ry=tan(DegreesToRadians(fmod(degrees,360.0)));
AdjustAffine(drawing_wand,&affine);
(void) MvgPrintf(drawing_wand,"skewX %.4g\n",degrees);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S k e w Y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSkewY() skews the current coordinate system in the vertical
% direction.
%
% The format of the DrawSkewY method is:
%
% void DrawSkewY(DrawingWand *drawing_wand,const double degrees)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o degrees: number of degrees to skew the coordinates
%
*/
WandExport void DrawSkewY(DrawingWand *drawing_wand,const double degrees)
{
AffineMatrix
affine;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
GetAffineMatrix(&affine);
affine.rx=tan(DegreesToRadians(fmod(degrees,360.0)));
DrawAffine(drawing_wand,&affine);
(void) MvgPrintf(drawing_wand,"skewY %.4g\n",degrees);
}
#if 0
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t S t o p C o l o r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetStopColor() sets the stop color and offset for gradients
%
% The format of the DrawSetStopColor method is:
%
% void DrawSetStopColor(DrawingWand *drawing_wand,
% const PixelPacket *stop_color,const double offset)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o stop_color:
%
% o offset:
%
*/
/* This is gradient stuff so it shouldn't be supported yet */
WandExport void DrawSetStopColor(DrawingWand *drawing_wand,
const PixelPacket * stop_color,const double offset)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
assert(stop_color != (const PixelPacket *) NULL);
(void) MvgPrintf(drawing_wand,"stop-color ");
MvgAppendColor(drawing_wand,stop_color);
(void) MvgPrintf(drawing_wand,"\n");
}
#endif
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t S t r o k e C o l o r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetStrokeColor() returns the color used for stroking object outlines.
%
% The format of the DrawGetStrokeColor method is:
%
% void DrawGetStrokeColor(const DrawingWand *drawing_wand,
$ PixelWand *stroke_color)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o stroke_color: Return the stroke color.
%
*/
WandExport void DrawGetStrokeColor(const DrawingWand *drawing_wand,
PixelWand *stroke_color)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
PixelSetQuantumColor(stroke_color,&CurrentContext->stroke);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t S t r o k e C o l o r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetStrokeColor() sets the color used for stroking object outlines.
%
% The format of the DrawSetStrokeColor method is:
%
% void DrawSetStrokeColor(DrawingWand *drawing_wand,
% const PixelWand *stroke_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o stroke_wand: stroke wand.
%
*/
WandExport void DrawSetStrokeColor(DrawingWand *drawing_wand,
const PixelWand *stroke_wand)
{
PixelPacket
*current_stroke,
new_stroke,
stroke_color;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
assert(stroke_wand != (const PixelWand *) NULL);
PixelGetQuantumColor(stroke_wand,&stroke_color);
new_stroke=stroke_color;
if (new_stroke.opacity != TransparentOpacity)
new_stroke.opacity=CurrentContext->opacity;
current_stroke=&CurrentContext->stroke;
if (drawing_wand->filter_off ||
!WandColorMatch(current_stroke,&new_stroke))
{
CurrentContext->stroke=new_stroke;
(void) MvgPrintf(drawing_wand,"stroke '");
MvgAppendColor(drawing_wand,&stroke_color);
(void) MvgPrintf(drawing_wand,"'\n");
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t S t r o k e P a t t e r n U R L %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetStrokePatternURL() sets the pattern used for stroking object outlines.
%
% The format of the DrawSetStrokePatternURL method is:
%
% void DrawSetStrokePatternURL(DrawingWand *drawing_wand,
% const char *stroke_url)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o stroke_url: URL specifying pattern ID (e.g. "#pattern_id")
%
*/
WandExport void DrawSetStrokePatternURL(DrawingWand *drawing_wand,
const char *stroke_url)
{
char
pattern[MaxTextExtent];
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
assert(stroke_url != NULL);
if (stroke_url[0] != '#')
ThrowException(&drawing_wand->exception,DrawWarning,
NotARelativeURL,stroke_url);
(void) FormatMagickString(pattern,MaxTextExtent,"[%.1024s]",stroke_url+1);
if (GetImageAttribute(drawing_wand->image,pattern) == (ImageAttribute *) NULL)
{
ThrowException(&drawing_wand->exception,DrawWarning,
URLNotFound,stroke_url);
}
else
{
char
pattern_spec[MaxTextExtent];
(void) FormatMagickString(pattern_spec,MaxTextExtent,"url(%.1024s)",
stroke_url);
if (CurrentContext->stroke.opacity != TransparentOpacity)
CurrentContext->stroke.opacity=CurrentContext->opacity;
(void) MvgPrintf(drawing_wand,"stroke %s\n",pattern_spec);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t S t r o k e A n t i a l i a s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetStrokeAntialias() returns the current stroke antialias setting.
% Stroked outlines are antialiased by default. When antialiasing is disabled
% stroked pixels are thresholded to determine if the stroke color or
% underlying canvas color should be used.
%
% The format of the DrawGetStrokeAntialias method is:
%
% unsigned int DrawGetStrokeAntialias(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
*/
WandExport unsigned int DrawGetStrokeAntialias(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return(CurrentContext->stroke_antialias);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t S t r o k e A n t i a l i a s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetStrokeAntialias() controls whether stroked outlines are antialiased.
% Stroked outlines are antialiased by default. When antialiasing is disabled
% stroked pixels are thresholded to determine if the stroke color or
% underlying canvas color should be used.
%
% The format of the DrawSetStrokeAntialias method is:
%
% void DrawSetStrokeAntialias(DrawingWand *drawing_wand,
% const unsigned int stroke_antialias)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o stroke_antialias: set to false (zero) to disable antialiasing
%
*/
WandExport void DrawSetStrokeAntialias(DrawingWand *drawing_wand,
const unsigned int stroke_antialias)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->filter_off ||
(CurrentContext->stroke_antialias != stroke_antialias))
{
CurrentContext->stroke_antialias=stroke_antialias;
(void) MvgPrintf(drawing_wand,"stroke-antialias %i\n",stroke_antialias ? 1 : 0);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t S t r o k e D a s h A r r a y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetStrokeDashArray() returns an array representing the pattern of
% dashes and gaps used to stroke paths (see DrawSetStrokeDashArray). The
% array must be freed once it is no longer required by the user.
%
% The format of the DrawGetStrokeDashArray method is:
%
% double *DrawGetStrokeDashArray(const DrawingWand *drawing_wand,
% unsigned long *number_elements)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o number_elements: address to place number of elements in dash array
%
% */
WandExport double *DrawGetStrokeDashArray(const DrawingWand *drawing_wand,
unsigned long *number_elements)
{
register const double
*p;
register double
*q;
double
*dash_array;
unsigned int
i,
n=0;
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
assert(number_elements != (unsigned long *)NULL);
p=CurrentContext->dash_pattern;
if ( p != (const double *) NULL )
while (*p++ != 0)
n++;
*number_elements=n;
dash_array=(double *)NULL;
if (n != 0)
{
dash_array=(double *) AcquireMagickMemory(n*sizeof(double));
p=CurrentContext->dash_pattern;
q=dash_array;
i=n;
while (i--)
*q++=(*p++);
}
return(dash_array);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t S t r o k e D a s h A r r a y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetStrokeDashArray() specifies the pattern of dashes and gaps used to
% stroke paths. The stroke dash array represents an array of numbers that
% specify the lengths of alternating dashes and gaps in pixels. If an odd
% number of values is provided, then the list of values is repeated to yield
% an even number of values. To remove an existing dash array, pass a zero
% number_elements argument and null dash_array.
% A typical stroke dash array might contain the members 5 3 2.
%
% The format of the DrawSetStrokeDashArray method is:
%
% void DrawSetStrokeDashArray(DrawingWand *drawing_wand,
% const unsigned long number_elements,const double *dash_array)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o number_elements: number of elements in dash array
%
% o dash_array: dash array values
%
% */
WandExport void DrawSetStrokeDashArray(DrawingWand *drawing_wand,
const unsigned long number_elements,const double *dash_array)
{
register const double
*p;
register double
*q;
unsigned int
i,
updated=MagickFalse,
n_new=number_elements,
n_old=0;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
q=CurrentContext->dash_pattern;
if (q != (const double *) NULL)
while (*q++ != 0)
n_old++;
if ((n_old == 0) && (n_new == 0))
{
updated=MagickFalse;
}
else if ( n_old != n_new )
{
updated=MagickTrue;
}
else if ((CurrentContext->dash_pattern != (double *) NULL) &&
(dash_array != (double *) NULL))
{
p=dash_array;
q=CurrentContext->dash_pattern;
i=n_new;
while ( i-- )
{
if (AbsoluteValue(*p - *q) > MagickEpsilon)
{
updated=MagickTrue;
break;
}
p++;
q++;
}
}
if (drawing_wand->filter_off || updated)
{
if (CurrentContext->dash_pattern != (double *) NULL)
CurrentContext->dash_pattern=(double *)
RelinquishMagickMemory(CurrentContext->dash_pattern);
if (n_new != 0)
{
CurrentContext->dash_pattern=(double *)
AcquireMagickMemory((n_new+1)*sizeof(double));
if (!CurrentContext->dash_pattern)
{
ThrowException3(&drawing_wand->exception,
ResourceLimitError,MemoryAllocationFailed,UnableToDrawOnImage);
}
else
{
q=CurrentContext->dash_pattern;
p=dash_array;
while (*p)
*q++=*p++;
*q=0;
}
}
(void) MvgPrintf(drawing_wand,"stroke-dash_array ");
if ( n_new == 0 )
(void) MvgPrintf(drawing_wand, "none");
else
{
p=dash_array;
i=n_new;
(void) MvgPrintf(drawing_wand,"%.4g",*p++);
while (i--)
(void) MvgPrintf(drawing_wand,",%.4g",*p++);
}
(void) MvgPrintf(drawing_wand,"0 \n");
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t S t r o k e D a s h O f f s e t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetStrokeDashOffset() returns the offset into the dash pattern to
% start the dash.
%
% The format of the DrawGetStrokeDashOffset method is:
%
% double DrawGetStrokeDashOffset(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport double DrawGetStrokeDashOffset(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return(CurrentContext->dash_offset);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t S t r o k e D a s h O f f s e t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetStrokeDashOffset() specifies the offset into the dash pattern to
% start the dash.
%
% The format of the DrawSetStrokeDashOffset method is:
%
% void DrawSetStrokeDashOffset(DrawingWand *drawing_wand,
% const double dash_offset)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o dash_offset: dash offset
%
*/
WandExport void DrawSetStrokeDashOffset(DrawingWand *drawing_wand,
const double dash_offset)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->filter_off ||
(AbsoluteValue(CurrentContext->dash_offset-dash_offset) > MagickEpsilon))
{
CurrentContext->dash_offset=dash_offset;
(void) MvgPrintf(drawing_wand,"stroke-dashoffset %.4g\n",dash_offset);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t S t r o k e L i n e C a p %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetStrokeLineCap() returns the shape to be used at the end of
% open subpaths when they are stroked. Values of LineCap are
% UndefinedCap, ButtCap, RoundCap, and SquareCap.
%
% The format of the DrawGetStrokeLineCap method is:
%
% LineCap DrawGetStrokeLineCap(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% */
WandExport LineCap DrawGetStrokeLineCap(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return(CurrentContext->linecap);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t S t r o k e L i n e C a p %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetStrokeLineCap() specifies the shape to be used at the end of
% open subpaths when they are stroked. Values of LineCap are
% UndefinedCap, ButtCap, RoundCap, and SquareCap.
%
% The format of the DrawSetStrokeLineCap method is:
%
% void DrawSetStrokeLineCap(DrawingWand *drawing_wand,
% const LineCap linecap)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o linecap: linecap style
%
% */
WandExport void DrawSetStrokeLineCap(DrawingWand *drawing_wand,
const LineCap linecap)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->filter_off || (CurrentContext->linecap != linecap))
{
const char
*p=NULL;
CurrentContext->linecap=linecap;
switch (linecap)
{
case ButtCap:
p="butt";
break;
case RoundCap:
p="round";
break;
case SquareCap:
p="square";
break;
default:
break;
}
if (p != NULL)
(void) MvgPrintf(drawing_wand,"stroke-linecap %s\n",p);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t S t r o k e L i n e J o i n %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetStrokeLineJoin() returns the shape to be used at the
% corners of paths (or other vector shapes) when they are
% stroked. Values of LineJoin are UndefinedJoin, MiterJoin, RoundJoin,
% and BevelJoin.
%
% The format of the DrawGetStrokeLineJoin method is:
%
% LineJoin DrawGetStrokeLineJoin(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% */
WandExport LineJoin DrawGetStrokeLineJoin(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return(CurrentContext->linejoin);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t S t r o k e L i n e J o i n %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetStrokeLineJoin() specifies the shape to be used at the
% corners of paths (or other vector shapes) when they are
% stroked. Values of LineJoin are UndefinedJoin, MiterJoin, RoundJoin,
% and BevelJoin.
%
% The format of the DrawSetStrokeLineJoin method is:
%
% void DrawSetStrokeLineJoin(DrawingWand *drawing_wand,
% const LineJoin linejoin)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o linejoin: line join style
%
%
*/
WandExport void DrawSetStrokeLineJoin(DrawingWand *drawing_wand,
const LineJoin linejoin)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->filter_off || (CurrentContext->linejoin != linejoin))
{
const char
*p=NULL;
CurrentContext->linejoin=linejoin;
switch (linejoin)
{
case MiterJoin:
p="miter";
break;
case RoundJoin:
p="round";
break;
case BevelJoin:
p="square";
break;
default:
break;
}
if (p != NULL)
(void) MvgPrintf(drawing_wand,"stroke-linejoin %s\n",p);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t S t r o k e M i t e r L i m i t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetStrokeMiterLimit() returns the miter limit. When two line
% segments meet at a sharp angle and miter joins have been specified for
% 'lineJoin', it is possible for the miter to extend far beyond the
% thickness of the line stroking the path. The miterLimit' imposes a
% limit on the ratio of the miter length to the 'lineWidth'.
%
% The format of the DrawGetStrokeMiterLimit method is:
%
% unsigned long DrawGetStrokeMiterLimit(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% */
WandExport unsigned long DrawGetStrokeMiterLimit(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return CurrentContext->miterlimit;
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t S t r o k e M i t e r L i m i t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetStrokeMiterLimit() specifies the miter limit. When two line
% segments meet at a sharp angle and miter joins have been specified for
% 'lineJoin', it is possible for the miter to extend far beyond the
% thickness of the line stroking the path. The miterLimit' imposes a
% limit on the ratio of the miter length to the 'lineWidth'.
%
% The format of the DrawSetStrokeMiterLimit method is:
%
% void DrawSetStrokeMiterLimit(DrawingWand *drawing_wand,
% const unsigned long miterlimit)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o miterlimit: miter limit
%
% */
WandExport void DrawSetStrokeMiterLimit(DrawingWand *drawing_wand,
const unsigned long miterlimit)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (CurrentContext->miterlimit != miterlimit)
{
CurrentContext->miterlimit=miterlimit;
(void) MvgPrintf(drawing_wand,"stroke-miterlimit %lu\n",miterlimit);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t S t r o k e O p a c i t y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetStrokeOpacity() returns the opacity of stroked object outlines.
%
% The format of the DrawGetStrokeOpacity method is:
%
% double DrawGetStrokeOpacity(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
*/
WandExport double DrawGetStrokeOpacity(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return(1.0-(((double)CurrentContext->stroke.opacity)/MaxRGB));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t S t r o k e O p a c i t y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetStrokeOpacity() specifies the opacity of stroked object outlines.
%
% The format of the DrawSetStrokeOpacity method is:
%
% void DrawSetStrokeOpacity(DrawingWand *drawing_wand,
% const double stroke_opacity)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o stroke_opacity: stroke opacity. The value 1.0 is opaque.
%
*/
WandExport void DrawSetStrokeOpacity(DrawingWand *drawing_wand,
const double stroke_opacity)
{
double
opacity;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
opacity=(Quantum) ((double) MaxRGB*
(1.0-(stroke_opacity <= 1.0 ? stroke_opacity : 1.0 ))+0.5);
if (drawing_wand->filter_off || (CurrentContext->stroke.opacity != opacity))
{
CurrentContext->stroke.opacity=(Quantum) (opacity+0.5);
(void) MvgPrintf(drawing_wand,"stroke-opacity %.4g\n",stroke_opacity);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t S t r o k e W i d t h %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetStrokeWidth() returns the width of the stroke used to draw object
% outlines.
%
% The format of the DrawGetStrokeWidth method is:
%
% double DrawGetStrokeWidth(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport double DrawGetStrokeWidth(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return(CurrentContext->stroke_width);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t S t r o k e W i d t h %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetStrokeWidth() sets the width of the stroke used to draw object
% outlines.
%
% The format of the DrawSetStrokeWidth method is:
%
% void DrawSetStrokeWidth(DrawingWand *drawing_wand,
% const double stroke_width)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o stroke_width: stroke width
%
*/
WandExport void DrawSetStrokeWidth(DrawingWand *drawing_wand,
const double stroke_width)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->filter_off ||
(AbsoluteValue(CurrentContext->stroke_width-stroke_width) > MagickEpsilon))
{
CurrentContext->stroke_width=stroke_width;
(void) MvgPrintf(drawing_wand,"stroke-width %.4g\n",stroke_width);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t T e x t A n t i a l i a s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetTextAntialias() returns the current text antialias setting, which
% determines whether text is antialiased. Text is antialiased by default.
%
% The format of the DrawGetTextAntialias method is:
%
% unsigned int DrawGetTextAntialias(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport unsigned int DrawGetTextAntialias(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return(CurrentContext->text_antialias);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t T e x t A n t i a l i a s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetTextAntialias() controls whether text is antialiased. Text is
% antialiased by default.
%
% The format of the DrawSetTextAntialias method is:
%
% void DrawSetTextAntialias(DrawingWand *drawing_wand,
% const unsigned int text_antialias)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o text_antialias: antialias boolean. Set to false (0) to disable
% antialiasing.
%
*/
WandExport void DrawSetTextAntialias(DrawingWand *drawing_wand,
const unsigned int text_antialias)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->filter_off ||
(CurrentContext->text_antialias != text_antialias))
{
CurrentContext->text_antialias=text_antialias;
(void) MvgPrintf(drawing_wand,"text-antialias %i\n",text_antialias ? 1 : 0);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t T e x t D e c o r a t i o n %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetTextDecoration() returns the decoration applied when annotating with
% text.
%
% The format of the DrawGetTextDecoration method is:
%
% DecorationType DrawGetTextDecoration(DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
*/
WandExport DecorationType DrawGetTextDecoration(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
return(CurrentContext->decorate);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t T e x t D e c o r a t i o n %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetTextDecoration() specifies a decoration to be applied when
% annotating with text.
%
% The format of the DrawSetTextDecoration method is:
%
% void DrawSetTextDecoration(DrawingWand *drawing_wand,
% const DecorationType decoration)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o decoration: text decoration. One of NoDecoration, UnderlineDecoration,
% OverlineDecoration, or LineThroughDecoration
%
*/
WandExport void DrawSetTextDecoration(DrawingWand *drawing_wand,
const DecorationType decoration)
{
const char
*p=NULL;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (drawing_wand->filter_off || (CurrentContext->decorate != decoration))
{
CurrentContext->decorate=decoration;
switch (decoration)
{
case NoDecoration:
p="none";
break;
case UnderlineDecoration:
p="underline";
break;
case OverlineDecoration:
p="overline";
break;
case LineThroughDecoration:
p="line-through";
break;
}
if (p != NULL)
(void) MvgPrintf(drawing_wand,"decorate %s\n",p);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t T e x t E n c o d i n g %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetTextEncoding() returns a null-terminated string which specifies the
% code set used for text annotations. The string must be freed by the user
% once it is no longer required.
%
% The format of the DrawGetTextEncoding method is:
%
% char *DrawGetTextEncoding(const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% */
WandExport char *DrawGetTextEncoding(const DrawingWand *drawing_wand)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
if (CurrentContext->encoding != (char *)NULL)
return((char *) AcquireString(CurrentContext->encoding));
return((char *) NULL);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t T e x t E n c o d i n g %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetTextEncoding() specifies specifies the code set to use for
% text annotations. The only character encoding which may be specified
% at this time is "UTF-8" for representing Unicode as a sequence of
% bytes. Specify an empty string to set text encoding to the system's
% default. Successful text annotation using Unicode may require fonts
% designed to support Unicode.
%
% The format of the DrawSetTextEncoding method is:
%
% void DrawSetTextEncoding(DrawingWand *drawing_wand,const char *encoding)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o encoding: character string specifying text encoding
%
% */
WandExport void DrawSetTextEncoding(DrawingWand *drawing_wand,
const char *encoding)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
assert(encoding != (char *) NULL);
if (drawing_wand->filter_off || (CurrentContext->encoding == (char *) NULL) ||
(LocaleCompare(CurrentContext->encoding,encoding) != 0))
{
(void) CloneString(&CurrentContext->encoding,encoding);
(void) MvgPrintf(drawing_wand,"encoding '%s'\n",encoding);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w G e t T e x t U n d e r C o l o r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawGetTextUnderColor() returns the color of a background rectangle
% to place under text annotations.
%
% The format of the DrawGetTextUnderColor method is:
%
% void DrawGetTextUnderColor(const DrawingWand *drawing_wand,
% PixelWand *under_color)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o under_color: Return the under color.
%
*/
WandExport void DrawGetTextUnderColor(const DrawingWand *drawing_wand,
PixelWand *under_color)
{
assert(drawing_wand != (const DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
PixelSetQuantumColor(under_color,&CurrentContext->undercolor);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t T e x t U n d e r C o l o r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetTextUnderColor() specifies the color of a background rectangle
% to place under text annotations.
%
% The format of the DrawSetTextUnderColor method is:
%
% void DrawSetTextUnderColor(DrawingWand *drawing_wand,
% const PixelWand *under_wand)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o under_wand.: text under wand.
%
*/
WandExport void DrawSetTextUnderColor(DrawingWand *drawing_wand,
const PixelWand *under_wand)
{
PixelPacket
under_color;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
assert(under_wand != (const PixelWand *) NULL);
PixelGetQuantumColor(under_wand,&under_color);
if (drawing_wand->filter_off ||
!WandColorMatch(&CurrentContext->undercolor,&under_color))
{
CurrentContext->undercolor=under_color;
(void) MvgPrintf(drawing_wand,"text-undercolor '");
MvgAppendColor(drawing_wand,&under_color);
(void) MvgPrintf(drawing_wand,"'\n");
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w T r a n s l a t e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawTranslate() applies a translation to the current coordinate
% system which moves the coordinate system origin to the specified
% coordinate.
%
% The format of the DrawTranslate method is:
%
% void DrawTranslate(DrawingWand *drawing_wand,const double x,
% const double y)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x: new x ordinate for coordinate system origin
%
% o y: new y ordinate for coordinate system origin
%
*/
WandExport void DrawTranslate(DrawingWand *drawing_wand,const double x,
const double y)
{
AffineMatrix
affine;
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
GetAffineMatrix(&affine);
affine.tx=x;
affine.ty=y;
AdjustAffine(drawing_wand,&affine );
(void) MvgPrintf(drawing_wand,"translate %.4g,%.4g\n",x,y);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D r a w S e t V i e w b o x %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DrawSetViewbox() sets the overall canvas size to be recorded with the
% drawing vector data. Usually this will be specified using the same
% size as the canvas image. When the vector data is saved to SVG or MVG
% formats, the viewbox is use to specify the size of the canvas image that
% a viewer will render the vector data on.
%
% The format of the DrawSetViewbox method is:
%
% void DrawSetViewbox(DrawingWand *drawing_wand,unsigned long x1,
% unsigned long y1,unsigned long x2,unsigned long y2)
%
% A description of each parameter follows:
%
% o drawing_wand: The drawing wand.
%
% o x1: left x ordinate
%
% o y1: top y ordinate
%
% o x2: right x ordinate
%
% o y2: bottom y ordinate
%
*/
WandExport void DrawSetViewbox(DrawingWand *drawing_wand,unsigned long x1,
unsigned long y1,unsigned long x2,unsigned long y2)
{
assert(drawing_wand != (DrawingWand *) NULL);
assert(drawing_wand->signature == MagickSignature);
(void) MvgPrintf(drawing_wand,"viewbox %lu %lu %lu %lu\n",x1,y1,x2,y2);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N e w D r a w i n g W a n d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NewDrawingWand() returns a drawing wand required for all other methods in
% the API.
%
% The format of the NewDrawingWand method is:
%
% DrawingWand *NewDrawingWand(void)
%
%
*/
WandExport DrawingWand *NewDrawingWand(void)
{
DrawingWand
*drawing_wand;
drawing_wand=(DrawingWand *) AcquireMagickMemory(sizeof(struct _DrawingWand));
if (drawing_wand == (DrawingWand *) NULL)
MagickFatalError3(ResourceLimitFatalError,MemoryAllocationFailed,
UnableToAllocateDrawingWand);
GetExceptionInfo(&drawing_wand->exception);
drawing_wand->image=AllocateImage((const ImageInfo *) NULL);
drawing_wand->own_image=MagickTrue;
drawing_wand->mvg=NULL;
drawing_wand->mvg_alloc=0;
drawing_wand->mvg_length=0;
drawing_wand->mvg_width=0;
drawing_wand->pattern_id=NULL;
drawing_wand->pattern_offset=0;
drawing_wand->pattern_bounds.x=0;
drawing_wand->pattern_bounds.y=0;
drawing_wand->pattern_bounds.width=0;
drawing_wand->pattern_bounds.height=0;
drawing_wand->index=0;
drawing_wand->graphic_context=(DrawInfo **)
AcquireMagickMemory(sizeof(DrawInfo *));
if (drawing_wand->graphic_context == (DrawInfo **) NULL)
{
ThrowException3(&drawing_wand->exception,ResourceLimitError,
MemoryAllocationFailed,UnableToDrawOnImage);
return (DrawingWand *) NULL;
}
CurrentContext=CloneDrawInfo((ImageInfo*)NULL,(DrawInfo *) NULL);
if (CurrentContext == (DrawInfo*) NULL)
{
ThrowException3(&drawing_wand->exception,ResourceLimitError,
MemoryAllocationFailed,UnableToDrawOnImage);
return (DrawingWand *) NULL;
}
drawing_wand->filter_off=MagickFalse;
drawing_wand->indent_depth=0;
drawing_wand->path_operation=PathDefaultOperation;
drawing_wand->path_mode=DefaultPathMode;
drawing_wand->signature=MagickSignature;
return(drawing_wand);
}