Remove Cairo support.

Source/WebCore/platform/win/DragImageCairoWin.cpp

Index: Source/WebCore/platform/win/DragImageCairoWin.cpp
diff --git a/Source/WebCore/platform/win/DragImageCairoWin.cpp b/Source/WebCore/platform/win/DragImageCairoWin.cpp
deleted file mode 100644
index 44a67f5ef7394320bbe5dbaa3a3265ec01011666..0000000000000000000000000000000000000000
--- a/Source/WebCore/platform/win/DragImageCairoWin.cpp
+++ /dev/null
@@ -1,194 +0,0 @@
-/*
- * Copyright (C) 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 "DragImage.h"
-
-#include "BitmapInfo.h"
-#include "CachedImage.h"
-#include "GraphicsContext.h"
-#include "GraphicsContextPlatformPrivateCairo.h"
-#include "Image.h"
-#include "NativeImageCairo.h"
-#include <wtf/RetainPtr.h>
-#include <cairo-win32.h>
-#include <windows.h>
-
-namespace WebCore {
-
-void deallocContext(PlatformContextCairo* target)
-{
-    delete target;
-}
-
-HBITMAP allocImage(HDC dc, IntSize size, PlatformContextCairo** targetRef)
-{
-    BitmapInfo bmpInfo = BitmapInfo::create(size);
-
-    LPVOID bits;
-    HBITMAP hbmp = CreateDIBSection(dc, &bmpInfo, DIB_RGB_COLORS, &bits, 0, 0);
-
-    // At this point, we have a Cairo surface that points to a Windows DIB.  The DIB interprets
-    // with the opposite meaning of positive Y axis, so everything we draw into this cairo
-    // context is going to be upside down.
-    if (!targetRef)
-        return hbmp;
-
-    cairo_surface_t* bitmapContext = cairo_image_surface_create_for_data((unsigned char*)bits,
-                                               CAIRO_FORMAT_ARGB32,
-                                               bmpInfo.bmiHeader.biWidth,
-                                               bmpInfo.bmiHeader.biHeight,
-                                               bmpInfo.bmiHeader.biWidth * 4);
-
-    if (!bitmapContext) {
-        DeleteObject(hbmp);
-        return 0;
-    }
-
-    cairo_t* cr = cairo_create(bitmapContext);
-    cairo_surface_destroy(bitmapContext);
-
-    // At this point, we have a Cairo surface that points to a Windows DIB.  The DIB interprets
-    // with the opposite meaning of positive Y axis, so everything we draw into this cairo
-    // context is going to be upside down.
-    //
-    // So, we must invert the CTM for the context so that drawing commands will be flipped
-    // before they get written to the internal buffer.
-    cairo_matrix_t matrix;
-    cairo_matrix_init(&matrix, 1.0, 0.0, 0.0, -1.0, 0.0, size.height());
-    cairo_set_matrix(cr, &matrix);
-
-    *targetRef = new PlatformGraphicsContext(cr);
-    cairo_destroy(cr);
-
-    return hbmp;
-}
-
-static cairo_surface_t* createCairoContextFromBitmap(HBITMAP bitmap)
-{
-    BITMAP info;
-    GetObject(bitmap, sizeof(info), &info);
-    ASSERT(info.bmBitsPixel == 32);
-
-    // At this point, we have a Cairo surface that points to a Windows BITMAP.  The BITMAP
-    // has the opposite meaning of positive Y axis, so everything we draw into this cairo
-    // context is going to be upside down.
-    return cairo_image_surface_create_for_data((unsigned char*)info.bmBits,
-                                               CAIRO_FORMAT_ARGB32,
-                                               info.bmWidth,
-                                               info.bmHeight,
-                                               info.bmWidthBytes);
-}
-
-DragImageRef scaleDragImage(DragImageRef image, FloatSize scale)
-{
-    // FIXME: due to the way drag images are done on windows we need 
-    // to preprocess the alpha channel <rdar://problem/5015946>
-    if (!image)
-        return 0;
-
-    IntSize srcSize = dragImageSize(image);
-    IntSize dstSize(static_cast<int>(srcSize.width() * scale.width()), static_cast<int>(srcSize.height() * scale.height()));
-
-    HBITMAP hbmp = 0;
-    HDC dc = GetDC(0);
-    HDC dstDC = CreateCompatibleDC(dc);
-
-    if (!dstDC)
-        goto exit;
-
-    PlatformContextCairo* targetContext;
-    hbmp = allocImage(dstDC, dstSize, &targetContext);
-    if (!hbmp)
-        goto exit;
-
-    cairo_surface_t* srcImage = createCairoContextFromBitmap(image);
-
-    // Scale the target surface to the new image size, and flip it
-    // so that when we set the srcImage as the surface it will draw
-    // right-side-up.
-    cairo_t* cr = targetContext->cr();
-    cairo_translate(cr, 0, dstSize.height());
-    cairo_scale(cr, scale.width(), -scale.height());
-    cairo_set_source_surface(cr, srcImage, 0.0, 0.0);
-
-    // Now we can paint and get the correct result
-    cairo_paint(cr);
-
-    cairo_surface_destroy(srcImage);
-    deallocContext(targetContext);
-    ::DeleteObject(image);
-    image = 0;
-
-exit:
-    if (!hbmp)
-        hbmp = image;
-    if (dstDC)
-        DeleteDC(dstDC);
-    ReleaseDC(0, dc);
-    return hbmp;
-}
-    
-DragImageRef createDragImageFromImage(Image* img, RespectImageOrientationEnum)
-{
-    HBITMAP hbmp = 0;
-    HDC dc = GetDC(0);
-    HDC workingDC = CreateCompatibleDC(dc);
-    if (!workingDC)
-        goto exit;
-
-    PlatformContextCairo* drawContext = 0;
-    hbmp = allocImage(workingDC, img->size(), &drawContext);
-    if (!hbmp)
-        goto exit;
-
-    if (!drawContext) {
-        ::DeleteObject(hbmp);
-        hbmp = 0;
-    }
-
-    cairo_t* cr = drawContext->cr();
-    cairo_set_source_rgb(cr, 1.0, 0.0, 1.0);
-    cairo_fill_preserve(cr);
-
-    NativeImageCairo* srcNativeImage = img->nativeImageForCurrentFrame();
-    cairo_surface_t* srcImage = (srcNativeImage) ? srcNativeImage->surface() : 0;
-
-    if (srcImage) {
-        // Draw the image.
-        cairo_set_source_surface(cr, srcImage, 0.0, 0.0);
-        cairo_paint(cr);
-    }
-
-    deallocContext(drawContext);
-
-exit:
-    if (workingDC)
-        DeleteDC(workingDC);
-    ReleaseDC(0, dc);
-    return hbmp;
-}
-    
-}