1 files changed, 415 insertions, 0 deletions
diff --git a/WebCore/platform/win/CursorWin.cpp b/WebCore/platform/win/CursorWin.cpp
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+++ b/WebCore/platform/win/CursorWin.cpp
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+/*
+ * 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 "Image.h"
+#include "IntPoint.h"
+
+#include <wtf/OwnPtr.h>
+
+#include <windows.h>
+
+#define ALPHA_CURSORS
+
+namespace WebCore {
+
+Cursor::Cursor(const Cursor& other)
+    : m_impl(other.m_impl)
+{
+}
+
+static inline bool supportsAlphaCursors() 
+{
+    OSVERSIONINFO osinfo = {0};
+    osinfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
+    GetVersionEx(&osinfo);
+    return osinfo.dwMajorVersion > 5 || (osinfo.dwMajorVersion == 5 && osinfo.dwMinorVersion > 0);
+}
+
+Cursor::Cursor(Image* img, const IntPoint& hotspot) 
+{ 
+    static bool doAlpha = supportsAlphaCursors();
+    BITMAPINFO cursorImage = {0};
+    cursorImage.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+    cursorImage.bmiHeader.biWidth = img->width();
+    cursorImage.bmiHeader.biHeight = img->height();
+    cursorImage.bmiHeader.biPlanes = 1;
+    cursorImage.bmiHeader.biBitCount = 32;
+    cursorImage.bmiHeader.biCompression = BI_RGB;
+    HDC dc = GetDC(0);
+    HDC workingDC = CreateCompatibleDC(dc);
+    if (doAlpha) {
+        OwnPtr<HBITMAP> hCursor(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(CreateBitmap(img->width(), img->height(), 1, 1, maskBits.data()));
+
+        ICONINFO ii;
+        ii.fIcon = FALSE;
+        ii.xHotspot = hotspot.x();
+        ii.yHotspot = hotspot.y();
+        ii.hbmMask = hMask.get();
+        ii.hbmColor = hCursor.get();
+
+        m_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(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(CreateBitmap(cursor.bmWidth, cursor.bmHeight, 1, 1, NULL));
+        OwnPtr<HBITMAP> xorMask(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 = hotspot.x();
+        icon.yHotspot = hotspot.y();
+        icon.hbmMask = andMask.get();
+        icon.hbmColor = xorMask.get();
+        m_impl = SharedCursor::create(CreateIconIndirect(&icon));
+
+        DeleteDC(xorMaskDC);
+        DeleteDC(andMaskDC);
+    }
+    DeleteDC(workingDC);
+    ReleaseDC(0, dc);
+}
+
+Cursor::~Cursor()
+{
+}
+
+Cursor& Cursor::operator=(const Cursor& other)
+{
+    m_impl = other.m_impl;
+    return *this;
+}
+
+Cursor::Cursor(PlatformCursor c)
+    : m_impl(c)
+{
+}
+
+static Cursor loadCursorByName(char* name, int x, int y) 
+{
+    IntPoint hotSpot(x, y);
+    Cursor c;
+    RefPtr<Image> cursorImage(Image::loadPlatformResource(name));
+    if (cursorImage && !cursorImage->isNull()) 
+        c = Cursor(cursorImage.get(), hotSpot);
+    else
+        c = pointerCursor();
+    return c;
+}
+
+static PassRefPtr<SharedCursor> loadSharedCursor(HINSTANCE hInstance, LPCTSTR lpCursorName)
+{
+    return SharedCursor::create(LoadCursor(hInstance, lpCursorName));
+}
+
+const Cursor& pointerCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_ARROW);
+    return c;
+}
+
+const Cursor& crossCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_CROSS);
+    return c;
+}
+
+const Cursor& handCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_HAND);
+    return c;
+}
+
+const Cursor& iBeamCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_IBEAM);
+    return c;
+}
+
+const Cursor& waitCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_WAIT);
+    return c;
+}
+
+const Cursor& helpCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_HELP);
+    return c;
+}
+
+const Cursor& eastResizeCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_SIZEWE);
+    return c;
+}
+
+const Cursor& northResizeCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_SIZENS);
+    return c;
+}
+
+const Cursor& northEastResizeCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_SIZENESW);
+    return c;
+}
+
+const Cursor& northWestResizeCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_SIZENWSE);
+    return c;
+}
+
+const Cursor& southResizeCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_SIZENS);
+    return c;
+}
+
+const Cursor& southEastResizeCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_SIZENWSE);
+    return c;
+}
+
+const Cursor& southWestResizeCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_SIZENESW);
+    return c;
+}
+
+const Cursor& westResizeCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_SIZEWE);
+    return c;
+}
+
+const Cursor& northSouthResizeCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_SIZENS);
+    return c;
+}
+
+const Cursor& eastWestResizeCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_SIZEWE);
+    return c;
+}
+
+const Cursor& northEastSouthWestResizeCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_SIZENESW);
+    return c;
+}
+
+const Cursor& northWestSouthEastResizeCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_SIZENWSE);
+    return c;
+}
+
+const Cursor& columnResizeCursor()
+{
+    // FIXME: Windows does not have a standard column resize cursor <rdar://problem/5018591>
+    static Cursor c = loadSharedCursor(0, IDC_SIZEWE);
+    return c;
+}
+
+const Cursor& rowResizeCursor()
+{
+    // FIXME: Windows does not have a standard row resize cursor <rdar://problem/5018591>
+    static Cursor c = loadSharedCursor(0, IDC_SIZENS);
+    return c;
+}
+
+const Cursor& middlePanningCursor()
+{
+    static const Cursor c = loadCursorByName("panIcon", 7, 7);
+    return c;
+}
+
+const Cursor& eastPanningCursor()
+{
+    static const Cursor c = loadCursorByName("panEastCursor", 7, 7);
+    return c;
+}
+
+const Cursor& northPanningCursor()
+{
+    static const Cursor c = loadCursorByName("panNorthCursor", 7, 7);
+    return c;
+}
+
+const Cursor& northEastPanningCursor()
+{
+    static const Cursor c = loadCursorByName("panNorthEastCursor", 7, 7);
+    return c;
+}
+
+const Cursor& northWestPanningCursor()
+{
+    static const Cursor c = loadCursorByName("panNorthWestCursor", 7, 7);
+    return c;
+}
+
+const Cursor& southPanningCursor()
+{
+    static const Cursor c = loadCursorByName("panSouthCursor", 7, 7);
+    return c;
+}
+
+const Cursor& southEastPanningCursor()
+{
+    static const Cursor c = loadCursorByName("panSouthEastCursor", 7, 7);
+    return c;
+}
+
+const Cursor& southWestPanningCursor()
+{
+    static const Cursor c = loadCursorByName("panSouthWestCursor", 7, 7);
+    return c;
+}
+
+const Cursor& westPanningCursor()
+{
+    static const Cursor c = loadCursorByName("panWestCursor", 7, 7);
+    return c;
+}
+
+const Cursor& moveCursor() 
+{
+    static Cursor c = loadSharedCursor(0, IDC_SIZEALL);
+    return c;
+}
+
+const Cursor& verticalTextCursor()
+{
+    static const Cursor c = loadCursorByName("verticalTextCursor", 7, 7);
+    return c;
+}
+
+const Cursor& cellCursor()
+{
+    return pointerCursor();
+}
+
+const Cursor& contextMenuCursor()
+{
+    return pointerCursor();
+}
+
+const Cursor& aliasCursor()
+{
+    return pointerCursor();
+}
+
+const Cursor& progressCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_APPSTARTING);
+    return c;
+}
+
+const Cursor& noDropCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_NO);
+    return c;
+}
+
+const Cursor& copyCursor()
+{
+    return pointerCursor();
+}
+
+const Cursor& noneCursor()
+{
+    return pointerCursor();
+}
+
+const Cursor& notAllowedCursor()
+{
+    static Cursor c = loadSharedCursor(0, IDC_NO);
+    return c;
+}
+
+const Cursor& zoomInCursor()
+{
+    static const Cursor c = loadCursorByName("zoomInCursor", 7, 7);
+    return c;
+}
+
+const Cursor& zoomOutCursor()
+{
+    static const Cursor c = loadCursorByName("zoomOutCursor", 7, 7);
+    return c;
+}
+
+const Cursor& grabCursor()
+{
+    return pointerCursor();
+}
+
+const Cursor& grabbingCursor()
+{
+    return pointerCursor();
+}
+
+}