#include "config.h"
#include "FrameWin.h"
#include "BitmapInfo.h"
#include "Frame.h"
#include "FrameSelection.h"
#include "FrameView.h"
#include "GraphicsContextCG.h"
#include "RenderObject.h"
#include "Settings.h"
#include <CoreGraphics/CoreGraphics.h>
#include <windows.h>
#include <wtf/win/GDIObject.h>
namespace WebCore {
static void drawRectIntoContext(IntRect rect, FrameView* view, GraphicsContext* gc)
{
IntSize offset = view->scrollOffset();
rect.move(-offset.width(), -offset.height());
rect = view->convertToContainingWindow(rect);
gc->concatCTM(AffineTransform().translate(-rect.x(), -rect.y()));
view->paint(gc, rect);
}
GDIObject<HBITMAP> imageFromRect(const Frame* frame, IntRect& ir)
{
PaintBehavior oldPaintBehavior = frame->view()->paintBehavior();
frame->view()->setPaintBehavior(oldPaintBehavior | PaintBehaviorFlattenCompositingLayers);
void* bits = nullptr;
auto hdc = adoptGDIObject(::CreateCompatibleDC(0));
int w = ir.width();
int h = ir.height();
BitmapInfo bmp = BitmapInfo::create(IntSize(w, h));
GDIObject<HBITMAP> hbmp = adoptGDIObject(::CreateDIBSection(0, &bmp, DIB_RGB_COLORS, static_cast<void**>(&bits), 0, 0));
if (!hbmp)
return hbmp;
HGDIOBJ hbmpOld = SelectObject(hdc.get(), hbmp.get());
CGContextRef context = CGBitmapContextCreate(static_cast<void*>(bits), w, h,
8, w * sizeof(RGBQUAD), deviceRGBColorSpaceRef(), kCGBitmapByteOrder32Little | kCGImageAlphaPremultipliedFirst);
CGContextSaveGState(context);
GraphicsContext gc(context);
drawRectIntoContext(ir, frame->view(), &gc);
CGContextRelease(context);
SelectObject(hdc.get(), hbmpOld);
frame->view()->setPaintBehavior(oldPaintBehavior);
return hbmp;
}
}