BackingStoreCairo.cpp [plain text]
#include "config.h"
#include "BackingStore.h"
#include "ShareableBitmap.h"
#include "UpdateInfo.h"
#include "WebPageProxy.h"
#include <WebCore/GraphicsContext.h>
#include <cairo/cairo.h>
#if PLATFORM(EFL)
#include "ewk_private.h"
#endif
using namespace WebCore;
namespace WebKit {
void BackingStore::paint(cairo_t* context, const IntRect& rect)
{
ASSERT(m_backingStore);
cairo_set_operator(context, CAIRO_OPERATOR_SOURCE);
cairo_set_source_surface(context, m_backingStore->cairoSurface(), 0, 0);
cairo_rectangle(context, rect.x(), rect.y(), rect.width(), rect.height());
cairo_fill(context);
}
void BackingStore::incorporateUpdate(ShareableBitmap* bitmap, const UpdateInfo& updateInfo)
{
if (!m_backingStore)
m_backingStore = WidgetBackingStore::create(m_webPageProxy->viewWidget(), size());
scroll(updateInfo.scrollRect, updateInfo.scrollOffset);
IntPoint updateRectLocation = updateInfo.updateRectBounds.location();
RefPtr<cairo_t> context(adoptRef(cairo_create(m_backingStore->cairoSurface())));
GraphicsContext graphicsContext(context.get());
for (size_t i = 0; i < updateInfo.updateRects.size(); ++i) {
IntRect updateRect = updateInfo.updateRects[i];
IntRect srcRect = updateRect;
srcRect.move(-updateRectLocation.x(), -updateRectLocation.y());
bitmap->paint(graphicsContext, updateRect.location(), srcRect);
}
#if PLATFORM(EFL)
ewk_view_image_data_set(m_webPageProxy->viewWidget(), cairo_image_surface_get_data(m_backingStore->cairoSurface()), m_size);
#endif
}
void BackingStore::scroll(const IntRect& scrollRect, const IntSize& scrollOffset)
{
if (scrollOffset.isZero())
return;
ASSERT(m_backingStore);
m_backingStore->scroll(scrollRect, scrollOffset);
}
}