blob: ce4d58fb421a5d8472a736382abde8c1473509c5 [file] [log] [blame]
/*
* Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
* Copyright (C) 2006, 2007, 2008 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 COMPUTER, 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 COMPUTER, 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 "Cursor.h"
#include "BitmapInfo.h"
#include "HWndDC.h"
#include "Image.h"
#include "IntPoint.h"
#include "SystemInfo.h"
#include <wtf/OwnPtr.h>
#include <wtf/PassOwnPtr.h>
#include <windows.h>
#define ALPHA_CURSORS
namespace WebCore {
static PassRefPtr<SharedCursor> createSharedCursor(Image* img, const IntPoint& hotSpot)
{
RefPtr<SharedCursor> impl;
IntPoint effectiveHotSpot = determineHotSpot(img, hotSpot);
static bool doAlpha = windowsVersion() >= WindowsXP;
BitmapInfo cursorImage = BitmapInfo::create(IntSize(img->width(), img->height()));
HWndDC dc(0);
HDC workingDC = CreateCompatibleDC(dc);
if (doAlpha) {
OwnPtr<HBITMAP> hCursor = adoptPtr(CreateDIBSection(dc, (BITMAPINFO *)&cursorImage, DIB_RGB_COLORS, 0, 0, 0));
ASSERT(hCursor);
img->getHBITMAP(hCursor.get());
HBITMAP hOldBitmap = (HBITMAP)SelectObject(workingDC, hCursor.get());
SetBkMode(workingDC, TRANSPARENT);
SelectObject(workingDC, hOldBitmap);
Vector<unsigned char, 128> maskBits;
maskBits.fill(0xff, (img->width() + 7) / 8 * img->height());
OwnPtr<HBITMAP> hMask = adoptPtr(CreateBitmap(img->width(), img->height(), 1, 1, maskBits.data()));
ICONINFO ii;
ii.fIcon = FALSE;
ii.xHotspot = effectiveHotSpot.x();
ii.yHotspot = effectiveHotSpot.y();
ii.hbmMask = hMask.get();
ii.hbmColor = hCursor.get();
impl = SharedCursor::create(CreateIconIndirect(&ii));
} else {
// Platform doesn't support alpha blended cursors, so we need
// to create the mask manually
HDC andMaskDC = CreateCompatibleDC(dc);
HDC xorMaskDC = CreateCompatibleDC(dc);
OwnPtr<HBITMAP> hCursor = adoptPtr(CreateDIBSection(dc, &cursorImage, DIB_RGB_COLORS, 0, 0, 0));
ASSERT(hCursor);
img->getHBITMAP(hCursor.get());
BITMAP cursor;
GetObject(hCursor.get(), sizeof(BITMAP), &cursor);
OwnPtr<HBITMAP> andMask = adoptPtr(CreateBitmap(cursor.bmWidth, cursor.bmHeight, 1, 1, NULL));
OwnPtr<HBITMAP> xorMask = adoptPtr(CreateCompatibleBitmap(dc, cursor.bmWidth, cursor.bmHeight));
HBITMAP oldCursor = (HBITMAP)SelectObject(workingDC, hCursor.get());
HBITMAP oldAndMask = (HBITMAP)SelectObject(andMaskDC, andMask.get());
HBITMAP oldXorMask = (HBITMAP)SelectObject(xorMaskDC, xorMask.get());
SetBkColor(workingDC, RGB(0,0,0));
BitBlt(andMaskDC, 0, 0, cursor.bmWidth, cursor.bmHeight, workingDC, 0, 0, SRCCOPY);
SetBkColor(xorMaskDC, RGB(255, 255, 255));
SetTextColor(xorMaskDC, RGB(255, 255, 255));
BitBlt(xorMaskDC, 0, 0, cursor.bmWidth, cursor.bmHeight, andMaskDC, 0, 0, SRCCOPY);
BitBlt(xorMaskDC, 0, 0, cursor.bmWidth, cursor.bmHeight, workingDC, 0,0, SRCAND);
SelectObject(workingDC, oldCursor);
SelectObject(andMaskDC, oldAndMask);
SelectObject(xorMaskDC, oldXorMask);
ICONINFO icon = {0};
icon.fIcon = FALSE;
icon.xHotspot = effectiveHotSpot.x();
icon.yHotspot = effectiveHotSpot.y();
icon.hbmMask = andMask.get();
icon.hbmColor = xorMask.get();
impl = SharedCursor::create(CreateIconIndirect(&icon));
DeleteDC(xorMaskDC);
DeleteDC(andMaskDC);
}
DeleteDC(workingDC);
return impl.release();
}
static PassRefPtr<SharedCursor> loadSharedCursor(HINSTANCE hInstance, LPCWSTR lpCursorName)
{
return SharedCursor::create(::LoadCursorW(hInstance, lpCursorName));
}
static PassRefPtr<SharedCursor> loadCursorByName(char* name, int x, int y)
{
IntPoint hotSpot(x, y);
RefPtr<Image> cursorImage(Image::loadPlatformResource(name));
if (cursorImage && !cursorImage->isNull())
return createSharedCursor(cursorImage.get(), hotSpot);
return loadSharedCursor(0, IDC_ARROW);
}
void Cursor::ensurePlatformCursor() const
{
if (m_platformCursor)
return;
switch (m_type) {
case Cursor::Pointer:
case Cursor::Cell:
case Cursor::ContextMenu:
case Cursor::Alias:
case Cursor::Copy:
case Cursor::None:
case Cursor::Grab:
case Cursor::Grabbing:
m_platformCursor = loadSharedCursor(0, IDC_ARROW);
break;
case Cursor::Cross:
m_platformCursor = loadSharedCursor(0, IDC_CROSS);
break;
case Cursor::Hand:
m_platformCursor = loadSharedCursor(0, IDC_HAND);
break;
case Cursor::IBeam:
m_platformCursor = loadSharedCursor(0, IDC_IBEAM);
break;
case Cursor::Wait:
m_platformCursor = loadSharedCursor(0, IDC_WAIT);
break;
case Cursor::Help:
m_platformCursor = loadSharedCursor(0, IDC_HELP);
break;
case Cursor::Move:
m_platformCursor = loadSharedCursor(0, IDC_SIZEALL);
break;
case Cursor::MiddlePanning:
m_platformCursor = loadCursorByName("panIcon", 8, 8);
break;
case Cursor::EastResize:
m_platformCursor = loadSharedCursor(0, IDC_SIZEWE);
break;
case Cursor::EastPanning:
m_platformCursor = loadCursorByName("panEastCursor", 7, 7);
break;
case Cursor::NorthResize:
m_platformCursor = loadSharedCursor(0, IDC_SIZENS);
break;
case Cursor::NorthPanning:
m_platformCursor = loadCursorByName("panNorthCursor", 7, 7);
break;
case Cursor::NorthEastResize:
m_platformCursor = loadSharedCursor(0, IDC_SIZENESW);
break;
case Cursor::NorthEastPanning:
m_platformCursor = loadCursorByName("panNorthEastCursor", 7, 7);
break;
case Cursor::NorthWestResize:
m_platformCursor = loadSharedCursor(0, IDC_SIZENWSE);
break;
case Cursor::NorthWestPanning:
m_platformCursor = loadCursorByName("panNorthWestCursor", 7, 7);
break;
case Cursor::SouthResize:
m_platformCursor = loadSharedCursor(0, IDC_SIZENS);
break;
case Cursor::SouthPanning:
m_platformCursor = loadCursorByName("panSouthCursor", 7, 7);
break;
case Cursor::SouthEastResize:
m_platformCursor = loadSharedCursor(0, IDC_SIZENWSE);
break;
case Cursor::SouthEastPanning:
m_platformCursor = loadCursorByName("panSouthEastCursor", 7, 7);
break;
case Cursor::SouthWestResize:
m_platformCursor = loadSharedCursor(0, IDC_SIZENESW);
break;
case Cursor::SouthWestPanning:
m_platformCursor = loadCursorByName("panSouthWestCursor", 7, 7);
break;
case Cursor::WestResize:
m_platformCursor = loadSharedCursor(0, IDC_SIZEWE);
break;
case Cursor::NorthSouthResize:
m_platformCursor = loadSharedCursor(0, IDC_SIZENS);
break;
case Cursor::EastWestResize:
m_platformCursor = loadSharedCursor(0, IDC_SIZEWE);
break;
case Cursor::WestPanning:
m_platformCursor = loadCursorByName("panWestCursor", 7, 7);
break;
case Cursor::NorthEastSouthWestResize:
m_platformCursor = loadSharedCursor(0, IDC_SIZENESW);
break;
case Cursor::NorthWestSouthEastResize:
m_platformCursor = loadSharedCursor(0, IDC_SIZENWSE);
break;
case Cursor::ColumnResize:
// FIXME: Windows does not have a standard column resize cursor <rdar://problem/5018591>
m_platformCursor = loadSharedCursor(0, IDC_SIZEWE);
break;
case Cursor::RowResize:
// FIXME: Windows does not have a standard row resize cursor <rdar://problem/5018591>
m_platformCursor = loadSharedCursor(0, IDC_SIZENS);
break;
case Cursor::VerticalText:
m_platformCursor = loadCursorByName("verticalTextCursor", 7, 7);
break;
case Cursor::Progress:
m_platformCursor = loadSharedCursor(0, IDC_APPSTARTING);
break;
case Cursor::NoDrop:
case Cursor::NotAllowed:
m_platformCursor = loadSharedCursor(0, IDC_NO);
break;
case Cursor::ZoomIn:
m_platformCursor = loadCursorByName("zoomInCursor", 7, 7);
break;
case Cursor::ZoomOut:
m_platformCursor = loadCursorByName("zoomOutCursor", 7, 7);
break;
case Cursor::Custom:
m_platformCursor = createSharedCursor(m_image.get(), m_hotSpot);
break;
default:
ASSERT_NOT_REACHED();
m_platformCursor = loadSharedCursor(0, IDC_ARROW);
break;
}
}
SharedCursor::~SharedCursor()
{
DestroyIcon(m_nativeCursor);
}
Cursor::Cursor(const Cursor& other)
: m_type(other.m_type)
, m_image(other.m_image)
, m_hotSpot(other.m_hotSpot)
, m_platformCursor(other.m_platformCursor)
{
}
Cursor& Cursor::operator=(const Cursor& other)
{
m_type = other.m_type;
m_image = other.m_image;
m_hotSpot = other.m_hotSpot;
m_platformCursor = other.m_platformCursor;
return *this;
}
Cursor::~Cursor()
{
}
} // namespace WebCore