1 files changed, 64 insertions, 0 deletions
diff --git a/WebCore/svg/graphics/cairo/SVGResourceClipperCairo.cpp b/WebCore/svg/graphics/cairo/SVGResourceClipperCairo.cpp
new file mode 100644
index 0000000..5900fcd
--- /dev/null
+++ b/WebCore/svg/graphics/cairo/SVGResourceClipperCairo.cpp
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2007 Alp Toker <alp@atoker.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+
+#if ENABLE(SVG)
+#include "SVGResourceClipper.h"
+#include "AffineTransform.h"
+#include "GraphicsContext.h"
+
+#include <cairo.h>
+
+namespace WebCore {
+
+void SVGResourceClipper::applyClip(GraphicsContext* context, const FloatRect& boundingBox) const
+{
+    Vector<ClipData> data = m_clipData.clipData();
+    unsigned int count = data.size();
+    if (!count)
+        return;
+
+    cairo_t* cr = context->platformContext();
+    cairo_reset_clip(cr);
+
+    for (unsigned int x = 0; x < count; x++) {
+        Path path = data[x].path;
+        if (path.isEmpty())
+            continue;
+        path.closeSubpath();
+
+        if (data[x].bboxUnits) {
+            // Make use of the clipping units
+            AffineTransform transform;
+            transform.translate(boundingBox.x(), boundingBox.y());
+            transform.scale(boundingBox.width(), boundingBox.height());
+            path.transform(transform);
+        }
+
+        cairo_set_fill_rule(cr, data[x].windRule == RULE_EVENODD ? CAIRO_FILL_RULE_EVEN_ODD : CAIRO_FILL_RULE_WINDING);
+
+        // TODO: review this code, clipping may not be having the desired effect
+        context->clip(path);
+    }
+}
+
+} // namespace WebCore
+
+#endif