root/Source/platform/Cursor.cpp

DEFINITIONS

1. determineHotSpot
2. fromType
3. m_imageScaleFactor
4. m_imageScaleFactor
5. m_imageScaleFactor
6. m_imageScaleFactor
7. pointerCursor
8. crossCursor
9. handCursor
10. moveCursor
11. verticalTextCursor
12. cellCursor
13. contextMenuCursor
14. aliasCursor
15. zoomInCursor
16. zoomOutCursor
17. copyCursor
18. noneCursor
19. progressCursor
20. noDropCursor
21. notAllowedCursor
22. iBeamCursor
23. waitCursor
24. helpCursor
25. eastResizeCursor
26. northResizeCursor
27. northEastResizeCursor
28. northWestResizeCursor
29. southResizeCursor
30. southEastResizeCursor
31. southWestResizeCursor
32. westResizeCursor
33. northSouthResizeCursor
34. eastWestResizeCursor
35. northEastSouthWestResizeCursor
36. northWestSouthEastResizeCursor
37. columnResizeCursor
38. rowResizeCursor
39. middlePanningCursor
40. eastPanningCursor
41. northPanningCursor
42. northEastPanningCursor
43. northWestPanningCursor
44. southPanningCursor
45. southEastPanningCursor
46. southWestPanningCursor
47. westPanningCursor
48. grabCursor
49. grabbingCursor

/*
 * Copyright (C) 2010 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "platform/Cursor.h"

namespace WebCore {

IntPoint determineHotSpot(Image* image, const IntPoint& specifiedHotSpot)
{
    if (image->isNull())
        return IntPoint();

    // Hot spot must be inside cursor rectangle.
    IntRect imageRect = image->rect();
    if (imageRect.contains(specifiedHotSpot))
        return specifiedHotSpot;

    // If hot spot is not specified externally, it can be extracted from some image formats (e.g. .cur).
    IntPoint intrinsicHotSpot;
    bool imageHasIntrinsicHotSpot = image->getHotSpot(intrinsicHotSpot);
    if (imageHasIntrinsicHotSpot && imageRect.contains(intrinsicHotSpot))
        return intrinsicHotSpot;

    return IntPoint();
}

const Cursor& Cursor::fromType(Cursor::Type type)
{
    switch (type) {
    case Cursor::Pointer:
        return pointerCursor();
    case Cursor::Cross:
        return crossCursor();
    case Cursor::Hand:
        return handCursor();
    case Cursor::IBeam:
        return iBeamCursor();
    case Cursor::Wait:
        return waitCursor();
    case Cursor::Help:
        return helpCursor();
    case Cursor::EastResize:
        return eastResizeCursor();
    case Cursor::NorthResize:
        return northResizeCursor();
    case Cursor::NorthEastResize:
        return northEastResizeCursor();
    case Cursor::NorthWestResize:
        return northWestResizeCursor();
    case Cursor::SouthResize:
        return southResizeCursor();
    case Cursor::SouthEastResize:
        return southEastResizeCursor();
    case Cursor::SouthWestResize:
        return southWestResizeCursor();
    case Cursor::WestResize:
        return westResizeCursor();
    case Cursor::NorthSouthResize:
        return northSouthResizeCursor();
    case Cursor::EastWestResize:
        return eastWestResizeCursor();
    case Cursor::NorthEastSouthWestResize:
        return northEastSouthWestResizeCursor();
    case Cursor::NorthWestSouthEastResize:
        return northWestSouthEastResizeCursor();
    case Cursor::ColumnResize:
        return columnResizeCursor();
    case Cursor::RowResize:
        return rowResizeCursor();
    case Cursor::MiddlePanning:
        return middlePanningCursor();
    case Cursor::EastPanning:
        return eastPanningCursor();
    case Cursor::NorthPanning:
        return northPanningCursor();
    case Cursor::NorthEastPanning:
        return northEastPanningCursor();
    case Cursor::NorthWestPanning:
        return northWestPanningCursor();
    case Cursor::SouthPanning:
        return southPanningCursor();
    case Cursor::SouthEastPanning:
        return southEastPanningCursor();
    case Cursor::SouthWestPanning:
        return southWestPanningCursor();
    case Cursor::WestPanning:
        return westPanningCursor();
    case Cursor::Move:
        return moveCursor();
    case Cursor::VerticalText:
        return verticalTextCursor();
    case Cursor::Cell:
        return cellCursor();
    case Cursor::ContextMenu:
        return contextMenuCursor();
    case Cursor::Alias:
        return aliasCursor();
    case Cursor::Progress:
        return progressCursor();
    case Cursor::NoDrop:
        return noDropCursor();
    case Cursor::Copy:
        return copyCursor();
    case Cursor::None:
        return noneCursor();
    case Cursor::NotAllowed:
        return notAllowedCursor();
    case Cursor::ZoomIn:
        return zoomInCursor();
    case Cursor::ZoomOut:
        return zoomOutCursor();
    case Cursor::Grab:
        return grabCursor();
    case Cursor::Grabbing:
        return grabbingCursor();
    case Cursor::Custom:
        ASSERT_NOT_REACHED();
    }
    return pointerCursor();
}

Cursor::Cursor(Image* image, const IntPoint& hotSpot)
    : m_type(Custom)
    , m_image(image)
    , m_hotSpot(determineHotSpot(image, hotSpot))
    , m_imageScaleFactor(1)
{
}

Cursor::Cursor(Image* image, const IntPoint& hotSpot, float scale)
    : m_type(Custom)
    , m_image(image)
    , m_hotSpot(determineHotSpot(image, hotSpot))
    , m_imageScaleFactor(scale)
{
}

Cursor::Cursor(Type type)
    : m_type(type)
    , m_imageScaleFactor(1)
{
}

Cursor::Cursor(const Cursor& other)
    : m_type(other.m_type)
    , m_image(other.m_image)
    , m_hotSpot(other.m_hotSpot)
    , m_imageScaleFactor(other.m_imageScaleFactor)
{
}

Cursor& Cursor::operator=(const Cursor& other)
{
    m_type = other.m_type;
    m_image = other.m_image;
    m_hotSpot = other.m_hotSpot;
    m_imageScaleFactor = other.m_imageScaleFactor;
    return *this;
}

Cursor::~Cursor()
{
}

const Cursor& pointerCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Pointer));
    return c;
}

const Cursor& crossCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Cross));
    return c;
}

const Cursor& handCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Hand));
    return c;
}

const Cursor& moveCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Move));
    return c;
}

const Cursor& verticalTextCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::VerticalText));
    return c;
}

const Cursor& cellCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Cell));
    return c;
}

const Cursor& contextMenuCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::ContextMenu));
    return c;
}

const Cursor& aliasCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Alias));
    return c;
}

const Cursor& zoomInCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::ZoomIn));
    return c;
}

const Cursor& zoomOutCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::ZoomOut));
    return c;
}

const Cursor& copyCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Copy));
    return c;
}

const Cursor& noneCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::None));
    return c;
}

const Cursor& progressCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Progress));
    return c;
}

const Cursor& noDropCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NoDrop));
    return c;
}

const Cursor& notAllowedCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NotAllowed));
    return c;
}

const Cursor& iBeamCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::IBeam));
    return c;
}

const Cursor& waitCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Wait));
    return c;
}

const Cursor& helpCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Help));
    return c;
}

const Cursor& eastResizeCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::EastResize));
    return c;
}

const Cursor& northResizeCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthResize));
    return c;
}

const Cursor& northEastResizeCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthEastResize));
    return c;
}

const Cursor& northWestResizeCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthWestResize));
    return c;
}

const Cursor& southResizeCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::SouthResize));
    return c;
}

const Cursor& southEastResizeCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::SouthEastResize));
    return c;
}

const Cursor& southWestResizeCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::SouthWestResize));
    return c;
}

const Cursor& westResizeCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::WestResize));
    return c;
}

const Cursor& northSouthResizeCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthSouthResize));
    return c;
}

const Cursor& eastWestResizeCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::EastWestResize));
    return c;
}

const Cursor& northEastSouthWestResizeCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthEastSouthWestResize));
    return c;
}

const Cursor& northWestSouthEastResizeCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthWestSouthEastResize));
    return c;
}

const Cursor& columnResizeCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::ColumnResize));
    return c;
}

const Cursor& rowResizeCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::RowResize));
    return c;
}

const Cursor& middlePanningCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::MiddlePanning));
    return c;
}

const Cursor& eastPanningCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::EastPanning));
    return c;
}

const Cursor& northPanningCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthPanning));
    return c;
}

const Cursor& northEastPanningCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthEastPanning));
    return c;
}

const Cursor& northWestPanningCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthWestPanning));
    return c;
}

const Cursor& southPanningCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::SouthPanning));
    return c;
}

const Cursor& southEastPanningCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::SouthEastPanning));
    return c;
}

const Cursor& southWestPanningCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::SouthWestPanning));
    return c;
}

const Cursor& westPanningCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::WestPanning));
    return c;
}

const Cursor& grabCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Grab));
    return c;
}

const Cursor& grabbingCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Grabbing));
    return c;
}

} // namespace WebCore