Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 114 insertions, 0 deletions

diff --git a/Source/WebCore/rendering/PaintInfo.h b/Source/WebCore/rendering/PaintInfo.h
new file mode 100644
index 000000000..e28ba0dab
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+++ b/Source/WebCore/rendering/PaintInfo.h
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+/*
+ * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
+ *           (C) 2000 Antti Koivisto (koivisto@kde.org)
+ *           (C) 2000 Dirk Mueller (mueller@kde.org)
+ *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
+ * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
+ * Copyright (C) 2009 Google Inc. All rights reserved.
+ *
+ * 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.
+ *
+ */
+
+#ifndef PaintInfo_h
+#define PaintInfo_h
+
+#if ENABLE(SVG)
+#include "AffineTransform.h"
+#endif
+
+#include "GraphicsContext.h"
+#include "IntRect.h"
+#include "PaintPhase.h"
+#include <wtf/HashMap.h>
+#include <wtf/ListHashSet.h>
+
+namespace WebCore {
+
+class OverlapTestRequestClient;
+class RenderInline;
+class RenderObject;
+class RenderRegion;
+
+typedef HashMap<OverlapTestRequestClient*, IntRect> OverlapTestRequestMap;
+
+/*
+ * Paint the object and its children, clipped by (x|y|w|h).
+ * (tx|ty) is the calculated position of the parent
+ */
+struct PaintInfo {
+    PaintInfo(GraphicsContext* newContext, const IntRect& newRect, PaintPhase newPhase, bool newForceBlackText,
+              RenderObject* newPaintingRoot, RenderRegion* region, ListHashSet<RenderInline*>* newOutlineObjects,
+              OverlapTestRequestMap* overlapTestRequests = 0)
+        : context(newContext)
+        , rect(newRect)
+        , phase(newPhase)
+        , forceBlackText(newForceBlackText)
+        , paintingRoot(newPaintingRoot)
+        , renderRegion(region)
+        , outlineObjects(newOutlineObjects)
+        , overlapTestRequests(overlapTestRequests)
+    {
+    }
+
+    void updatePaintingRootForChildren(const RenderObject* renderer)
+    {
+        if (!paintingRoot)
+            return;
+
+        // If we're the painting root, kids draw normally, and see root of 0.
+        if (paintingRoot == renderer) {
+            paintingRoot = 0; 
+            return;
+        }
+    }
+
+    bool shouldPaintWithinRoot(const RenderObject* renderer) const
+    {
+        return !paintingRoot || paintingRoot == renderer;
+    }
+
+#if ENABLE(SVG)
+    void applyTransform(const AffineTransform& localToAncestorTransform)
+    {
+        if (localToAncestorTransform.isIdentity())
+            return;
+
+        context->concatCTM(localToAncestorTransform);
+
+        if (rect == infiniteRect())
+            return;
+
+        rect = localToAncestorTransform.inverse().mapRect(rect);
+    }
+#endif
+
+    static IntRect infiniteRect() { return IntRect(INT_MIN / 2, INT_MIN / 2, INT_MAX, INT_MAX); }
+
+    // FIXME: Introduce setters/getters at some point. Requires a lot of changes throughout rendering/.
+    GraphicsContext* context;
+    IntRect rect;
+    PaintPhase phase;
+    bool forceBlackText;
+    RenderObject* paintingRoot; // used to draw just one element and its visual kids
+    RenderRegion* renderRegion;
+    ListHashSet<RenderInline*>* outlineObjects; // used to list outlines that should be painted by a block with inline children
+    OverlapTestRequestMap* overlapTestRequests;
+};
+
+} // namespace WebCore
+
+#endif // PaintInfo_h