BackingStoreCairo.cpp [plain text]
#include "config.h"
#include "BackingStore.h"
#include "ShareableBitmap.h"
#include "UpdateInfo.h"
#include "WebPageProxy.h"
#include <WebCore/GraphicsContext.h>
#include <WebCore/WidgetBackingStoreCairo.h>
#include <cairo.h>
#if PLATFORM(GTK) && PLATFORM(X11) && defined(GDK_WINDOWING_X11)
#include <WebCore/WidgetBackingStoreGtkX11.h>
#include <gdk/gdkx.h>
#endif
#if PLATFORM(EFL)
#include "EwkView.h"
#endif
using namespace WebCore;
namespace WebKit {
#if PLATFORM(GTK)
static OwnPtr<WidgetBackingStore> createBackingStoreForGTK(GtkWidget* widget, const IntSize& size, float deviceScaleFactor)
{
#if PLATFORM(X11) && defined(GDK_WINDOWING_X11)
GdkDisplay* display = gdk_display_manager_get_default_display(gdk_display_manager_get());
if (GDK_IS_X11_DISPLAY(display))
return WebCore::WidgetBackingStoreGtkX11::create(widget, size, deviceScaleFactor);
#endif
return WebCore::WidgetBackingStoreCairo::create(widget, size, deviceScaleFactor);
}
#endif
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)
#if PLATFORM(EFL)
m_backingStore = WidgetBackingStoreCairo::create(EwkView::toEvasObject(toAPI(m_webPageProxy)), size(), deviceScaleFactor());
#else
m_backingStore = createBackingStoreForGTK(m_webPageProxy->viewWidget(), size(), deviceScaleFactor());
#endif
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, deviceScaleFactor(), updateRect.location(), srcRect);
}
}
void BackingStore::scroll(const IntRect& scrollRect, const IntSize& scrollOffset)
{
if (scrollOffset.isZero())
return;
ASSERT(m_backingStore);
m_backingStore->scroll(scrollRect, scrollOffset);
}
}