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DEFINITIONS
This source file includes following definitions.
- IsPFA
- IsTTF
- ReadTTFImage
- RegisterTTFImage
- UnregisterTTFImage
/*
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% %
% %
% %
% TTTTT TTTTT FFFFF %
% T T F %
% T T FFF %
% T T F %
% T T F %
% %
% %
% Return A Preview For A TrueType or Postscript Font %
% %
% Software Design %
% Cristy %
% July 1992 %
% %
% %
% Copyright 1999-2015 ImageMagick Studio LLC, a non-profit organization %
% dedicated to making software imaging solutions freely available. %
% %
% You may not use this file except in compliance with the License. You may %
% obtain a copy of the License at %
% %
% http://www.imagemagick.org/script/license.php %
% %
% Unless required by applicable law or agreed to in writing, software %
% distributed under the License is distributed on an "AS IS" BASIS, %
% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
% See the License for the specific language governing permissions and %
% limitations under the License. %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%
*/
/*
Include declarations.
*/
#include "magick/studio.h"
#include "magick/blob.h"
#include "magick/blob-private.h"
#include "magick/draw.h"
#include "magick/exception.h"
#include "magick/exception-private.h"
#include "magick/image.h"
#include "magick/image-private.h"
#include "magick/list.h"
#include "magick/magick.h"
#include "magick/memory_.h"
#include "magick/pixel-accessor.h"
#include "magick/quantum-private.h"
#include "magick/static.h"
#include "magick/string_.h"
#include "magick/module.h"
#include "magick/type.h"
#include "wand/MagickWand.h"
#if defined(MAGICKCORE_FREETYPE_DELEGATE)
#include <ft2build.h>
#if defined(FT_FREETYPE_H)
# include FT_FREETYPE_H
#else
# include <freetype/freetype.h>
#endif
#endif
/*
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% I s P F A %
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%
% IsPFA()() returns MagickTrue if the image format type, identified by the
% magick string, is PFA.
%
% The format of the IsPFA method is:
%
% MagickBooleanType IsPFA(const unsigned char *magick,const size_t length)
%
% A description of each parameter follows:
%
% o magick: compare image format pattern against these bytes.
%
% o length: Specifies the length of the magick string.
%
%
*/
static MagickBooleanType IsPFA(const unsigned char *magick,const size_t length)
{
if (length < 14)
return(MagickFalse);
if (LocaleNCompare((char *) magick,"%!PS-AdobeFont",14) == 0)
return(MagickTrue);
return(MagickFalse);
}
/*
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% I s T T F %
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%
% IsTTF()() returns MagickTrue if the image format type, identified by the
% magick string, is TTF.
%
% The format of the IsTTF method is:
%
% MagickBooleanType IsTTF(const unsigned char *magick,const size_t length)
%
% A description of each parameter follows:
%
% o magick: compare image format pattern against these bytes.
%
% o length: Specifies the length of the magick string.
%
%
*/
static MagickBooleanType IsTTF(const unsigned char *magick,const size_t length)
{
if (length < 5)
return(MagickFalse);
if (((int) magick[0] == 0x00) && ((int) magick[1] == 0x01) &&
((int) magick[2] == 0x00) && ((int) magick[3] == 0x00) &&
((int) magick[4] == 0x00))
return(MagickTrue);
return(MagickFalse);
}
#if defined(MAGICKCORE_FREETYPE_DELEGATE)
/*
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% R e a d T T F I m a g e %
% %
% %
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%
% ReadTTFImage() reads a TrueType font file and returns it. It
% allocates the memory necessary for the new Image structure and returns a
% pointer to the new image.
%
% The format of the ReadTTFImage method is:
%
% Image *ReadTTFImage(const ImageInfo *image_info,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image_info: the image info.
%
% o exception: return any errors or warnings in this structure.
%
*/
static Image *ReadTTFImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
char
buffer[MaxTextExtent],
*text;
const char
*Text = (char *)
"abcdefghijklmnopqrstuvwxyz\n"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ\n"
"0123456789.:,;(*!?}^)#${%^&-+@\n";
const TypeInfo
*type_info;
DrawInfo
*draw_info;
Image
*image;
MagickBooleanType
status;
PixelPacket
background_color;
register ssize_t
i,
x;
register PixelPacket
*q;
ssize_t
y;
/*
Open image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AcquireImage(image_info);
image->columns=800;
image->rows=480;
type_info=GetTypeInfo(image_info->filename,exception);
if ((type_info != (const TypeInfo *) NULL) &&
(type_info->glyphs != (char *) NULL))
(void) CopyMagickString(image->filename,type_info->glyphs,MaxTextExtent);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
status=SetImageExtent(image,image->columns,image->rows);
if (status == MagickFalse)
{
InheritException(exception,&image->exception);
return(DestroyImageList(image));
}
/*
Color canvas with background color
*/
background_color=image_info->background_color;
for (y=0; y < (ssize_t) image->rows; y++)
{
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (PixelPacket *) NULL)
break;
for (x=0; x < (ssize_t) image->columns; x++)
*q++=background_color;
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
(void) CopyMagickString(image->magick,image_info->magick,MaxTextExtent);
(void) CopyMagickString(image->filename,image_info->filename,MaxTextExtent);
/*
Prepare drawing commands
*/
y=20;
draw_info=CloneDrawInfo(image_info,(DrawInfo *) NULL);
draw_info->font=AcquireString(image->filename);
ConcatenateString(&draw_info->primitive,"push graphic-context\n");
(void) FormatLocaleString(buffer,MaxTextExtent," viewbox 0 0 %.20g %.20g\n",
(double) image->columns,(double) image->rows);
ConcatenateString(&draw_info->primitive,buffer);
ConcatenateString(&draw_info->primitive," font-size 18\n");
(void) FormatLocaleString(buffer,MaxTextExtent," text 10,%.20g '",(double) y);
ConcatenateString(&draw_info->primitive,buffer);
text=EscapeString(Text,'"');
ConcatenateString(&draw_info->primitive,text);
text=DestroyString(text);
(void) FormatLocaleString(buffer,MaxTextExtent,"'\n");
ConcatenateString(&draw_info->primitive,buffer);
y+=20*(ssize_t) MultilineCensus((char *) Text)+20;
for (i=12; i <= 72; i+=6)
{
y+=i+12;
ConcatenateString(&draw_info->primitive," font-size 18\n");
(void) FormatLocaleString(buffer,MaxTextExtent," text 10,%.20g '%.20g'\n",
(double) y,(double) i);
ConcatenateString(&draw_info->primitive,buffer);
(void) FormatLocaleString(buffer,MaxTextExtent," font-size %.20g\n",
(double) i);
ConcatenateString(&draw_info->primitive,buffer);
(void) FormatLocaleString(buffer,MaxTextExtent," text 50,%.20g "
"'That which does not destroy me, only makes me stronger.'\n",(double) y);
ConcatenateString(&draw_info->primitive,buffer);
if (i >= 24)
i+=6;
}
ConcatenateString(&draw_info->primitive,"pop graphic-context");
(void) DrawImage(image,draw_info);
/*
Relinquish resources.
*/
draw_info=DestroyDrawInfo(draw_info);
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
#endif /* MAGICKCORE_FREETYPE_DELEGATE */
/*
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% R e g i s t e r T T F I m a g e %
% %
% %
% %
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%
% RegisterTTFImage() adds attributes for the TTF image format to
% the list of supported formats. The attributes include the image format
% tag, a method to read and/or write the format, whether the format
% supports the saving of more than one frame to the same file or blob,
% whether the format supports native in-memory I/O, and a brief
% description of the format.
%
% The format of the RegisterTTFImage method is:
%
% size_t RegisterTTFImage(void)
%
*/
ModuleExport size_t RegisterTTFImage(void)
{
char
version[MaxTextExtent];
MagickInfo
*entry;
*version='\0';
#if defined(FREETYPE_MAJOR) && defined(FREETYPE_MINOR) && defined(FREETYPE_PATCH)
(void) FormatLocaleString(version,MaxTextExtent,"Freetype %d.%d.%d",
FREETYPE_MAJOR,FREETYPE_MINOR,FREETYPE_PATCH);
#endif
entry=SetMagickInfo("DFONT");
#if defined(MAGICKCORE_FREETYPE_DELEGATE)
entry->decoder=(DecodeImageHandler *) ReadTTFImage;
#endif
entry->magick=(IsImageFormatHandler *) IsTTF;
entry->adjoin=MagickFalse;
entry->description=ConstantString("Multi-face font package");
if (*version != '\0')
entry->version=ConstantString(version);
entry->module=ConstantString("TTF");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("PFA");
#if defined(MAGICKCORE_FREETYPE_DELEGATE)
entry->decoder=(DecodeImageHandler *) ReadTTFImage;
#endif
entry->magick=(IsImageFormatHandler *) IsPFA;
entry->adjoin=MagickFalse;
entry->description=ConstantString("Postscript Type 1 font (ASCII)");
if (*version != '\0')
entry->version=ConstantString(version);
entry->module=ConstantString("TTF");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("PFB");
#if defined(MAGICKCORE_FREETYPE_DELEGATE)
entry->decoder=(DecodeImageHandler *) ReadTTFImage;
#endif
entry->magick=(IsImageFormatHandler *) IsPFA;
entry->adjoin=MagickFalse;
entry->description=ConstantString("Postscript Type 1 font (binary)");
if (*version != '\0')
entry->version=ConstantString(version);
entry->module=ConstantString("TTF");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("OTF");
#if defined(MAGICKCORE_FREETYPE_DELEGATE)
entry->decoder=(DecodeImageHandler *) ReadTTFImage;
#endif
entry->magick=(IsImageFormatHandler *) IsTTF;
entry->adjoin=MagickFalse;
entry->description=ConstantString("Open Type font");
if (*version != '\0')
entry->version=ConstantString(version);
entry->module=ConstantString("TTF");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("TTC");
#if defined(MAGICKCORE_FREETYPE_DELEGATE)
entry->decoder=(DecodeImageHandler *) ReadTTFImage;
#endif
entry->magick=(IsImageFormatHandler *) IsTTF;
entry->adjoin=MagickFalse;
entry->description=ConstantString("TrueType font collection");
if (*version != '\0')
entry->version=ConstantString(version);
entry->module=ConstantString("TTF");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("TTF");
#if defined(MAGICKCORE_FREETYPE_DELEGATE)
entry->decoder=(DecodeImageHandler *) ReadTTFImage;
#endif
entry->magick=(IsImageFormatHandler *) IsTTF;
entry->adjoin=MagickFalse;
entry->description=ConstantString("TrueType font");
if (*version != '\0')
entry->version=ConstantString(version);
entry->module=ConstantString("TTF");
(void) RegisterMagickInfo(entry);
return(MagickImageCoderSignature);
}
/*
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% U n r e g i s t e r T T F I m a g e %
% %
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%
% UnregisterTTFImage() removes format registrations made by the
% TTF module from the list of supported formats.
%
% The format of the UnregisterTTFImage method is:
%
% UnregisterTTFImage(void)
%
*/
ModuleExport void UnregisterTTFImage(void)
{
(void) UnregisterMagickInfo("TTF");
(void) UnregisterMagickInfo("TTC");
(void) UnregisterMagickInfo("OTF");
(void) UnregisterMagickInfo("PFA");
(void) UnregisterMagickInfo("PFB");
(void) UnregisterMagickInfo("PFA");
(void) UnregisterMagickInfo("DFONT");
}