diff options
Diffstat (limited to 'Source/WebKit2/UIProcess/gtk/ChunkedUpdateDrawingAreaProxyGtk.cpp')
-rw-r--r-- | Source/WebKit2/UIProcess/gtk/ChunkedUpdateDrawingAreaProxyGtk.cpp | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/Source/WebKit2/UIProcess/gtk/ChunkedUpdateDrawingAreaProxyGtk.cpp b/Source/WebKit2/UIProcess/gtk/ChunkedUpdateDrawingAreaProxyGtk.cpp new file mode 100644 index 0000000..a5c708f --- /dev/null +++ b/Source/WebKit2/UIProcess/gtk/ChunkedUpdateDrawingAreaProxyGtk.cpp @@ -0,0 +1,94 @@ +/* + * Copyright (C) 2010 Apple Inc. All rights reserved. + * Portions Copyright (c) 2010 Motorola Mobility, Inc. All rights reserved. + * Copyright (C) 2011 Igalia S.L + * + * 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 INC. AND ITS CONTRIBUTORS ``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 INC. OR ITS 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 "ChunkedUpdateDrawingAreaProxy.h" + +#include "RefPtrCairo.h" +#include "UpdateChunk.h" +#include "WebProcessProxy.h" +#include "WebView.h" + +#include <gdk/gdk.h> + +using namespace WebCore; + +namespace WebKit { + +WebPageProxy* ChunkedUpdateDrawingAreaProxy::page() +{ + return m_webView->page(); +} + +void ChunkedUpdateDrawingAreaProxy::ensureBackingStore() +{ + if (m_backingStoreImage) + return; + + m_backingStoreImage = gdk_window_create_similar_surface(gtk_widget_get_window(m_webView->window()), + CAIRO_CONTENT_COLOR_ALPHA, size().width(), size().height()); +} + +void ChunkedUpdateDrawingAreaProxy::invalidateBackingStore() +{ + if (m_backingStoreImage) { + cairo_surface_destroy(m_backingStoreImage); + m_backingStoreImage = 0; + } +} + +bool ChunkedUpdateDrawingAreaProxy::platformPaint(const IntRect& rect, cairo_t* cr) +{ + if (!m_backingStoreImage) + return false; + + cairo_rectangle(cr, rect.x(), rect.y(), rect.width(), rect.height()); + cairo_set_source_surface(cr, m_backingStoreImage, 0, 0); + cairo_fill(cr); + + return true; +} + +void ChunkedUpdateDrawingAreaProxy::drawUpdateChunkIntoBackingStore(UpdateChunk* updateChunk) +{ + ensureBackingStore(); + + RefPtr<cairo_surface_t> pixmap(updateChunk->createImage()); + if (cairo_surface_status(pixmap.get()) != CAIRO_STATUS_SUCCESS) + return; + + const IntRect& updateChunkRect = updateChunk->rect(); + + RefPtr<cairo_t> cr = cairo_create(m_backingStoreImage); + cairo_set_source_surface(cr.get(), pixmap.get(), updateChunkRect.x(), updateChunkRect.y()); + cairo_paint(cr.get()); + + gtk_widget_queue_draw_area(m_webView->window(), updateChunkRect.x(), updateChunkRect.y(), + updateChunkRect.width(), updateChunkRect.height()); +} + +} // namespace WebKit |