Add webkit to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@18 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 183 insertions, 0 deletions

diff --git a/webkit/pending/RenderText.h b/webkit/pending/RenderText.h
new file mode 100644
index 0000000..2f77c90
--- /dev/null
+++ b/webkit/pending/RenderText.h
@@ -0,0 +1,183 @@
+/*
+ * (C) 1999 Lars Knoll (knoll@kde.org)
+ * (C) 2000 Dirk Mueller (mueller@kde.org)
+ * Copyright (C) 2004, 2005, 2006, 2007 Apple 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 RenderText_h
+#define RenderText_h
+
+#include "RenderObject.h"
+
+namespace WebCore {
+
+class InlineTextBox;
+class StringImpl;
+
+class RenderText : public RenderObject {
+public:
+    RenderText(Node*, PassRefPtr<StringImpl>);
+#ifndef NDEBUG
+    virtual ~RenderText();
+#endif
+
+    virtual const char* renderName() const;
+
+    virtual bool isTextFragment() const;
+    virtual bool isWordBreak() const;
+
+    virtual PassRefPtr<StringImpl> originalText() const;
+
+    virtual void setStyle(RenderStyle*);
+
+    void extractTextBox(InlineTextBox*);
+    void attachTextBox(InlineTextBox*);
+    void removeTextBox(InlineTextBox*);
+
+    virtual void destroy();
+
+    StringImpl* text() const { return m_text.get(); }
+
+    virtual InlineBox* createInlineBox(bool makePlaceHolderBox, bool isRootLineBox, bool isOnlyRun = false);
+    virtual InlineTextBox* createInlineTextBox();
+    virtual void dirtyLineBoxes(bool fullLayout, bool isRootInlineBox = false);
+
+    virtual void paint(PaintInfo&, int tx, int ty) { ASSERT_NOT_REACHED(); }
+    virtual void layout() { ASSERT_NOT_REACHED(); }
+
+    virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int, int, int, int, HitTestAction) { ASSERT_NOT_REACHED(); return false; }
+
+    virtual void absoluteRects(Vector<IntRect>&, int tx, int ty, bool topLevel = true);
+    virtual void addLineBoxRects(Vector<IntRect>&, unsigned startOffset = 0, unsigned endOffset = UINT_MAX, bool useSelectionHeight = false);
+
+    virtual VisiblePosition positionForCoordinates(int x, int y);
+
+    const UChar* characters() const { return m_text->characters(); }
+    unsigned textLength() const { return m_text->length(); } // non virtual implementation of length()
+    virtual void position(InlineBox*);
+
+    virtual unsigned width(unsigned from, unsigned len, const Font&, int xPos) const;
+    virtual unsigned width(unsigned from, unsigned len, int xPos, bool firstLine = false) const;
+    virtual int width() const;
+    virtual int height() const;
+
+    virtual short lineHeight(bool firstLine, bool isRootLineBox = false) const;
+
+    virtual int minPrefWidth() const;
+    virtual int maxPrefWidth() const;
+
+    void trimmedPrefWidths(int leadWidth,
+                           int& beginMinW, bool& beginWS,
+                           int& endMinW, bool& endWS,
+                           bool& hasBreakableChar, bool& hasBreak,
+                           int& beginMaxW, int& endMaxW,
+                           int& minW, int& maxW, bool& stripFrontSpaces);
+
+    // returns the minimum x position of all runs relative to the parent.
+    // defaults to 0.
+    int minXPos() const;
+
+    virtual int xPos() const;
+    virtual int yPos() const;
+
+    virtual short verticalPositionHint(bool firstLine) const;
+
+    void setText(PassRefPtr<StringImpl>, bool force = false);
+    void setTextWithOffset(PassRefPtr<StringImpl>, unsigned offset, unsigned len, bool force = false);
+
+    virtual bool canBeSelectionLeaf() const { return true; }
+    virtual SelectionState selectionState() const { return static_cast<SelectionState>(m_selectionState); }
+    virtual void setSelectionState(SelectionState s);
+    virtual IntRect selectionRect(bool clipToVisibleContent = true);
+    virtual IntRect caretRect(int offset, EAffinity, int* extraWidthToEndOfLine = 0);
+
+    virtual int marginLeft() const { return style()->marginLeft().calcMinValue(0); }
+    virtual int marginRight() const { return style()->marginRight().calcMinValue(0); }
+
+    virtual IntRect absoluteClippedOverflowRect();
+
+    InlineTextBox* firstTextBox() const { return m_firstTextBox; }
+    InlineTextBox* lastTextBox() const { return m_lastTextBox; }
+
+    virtual InlineBox* inlineBox(int offset, EAffinity = UPSTREAM);
+
+    virtual int caretMinOffset() const;
+    virtual int caretMaxOffset() const;
+    virtual unsigned caretMaxRenderedOffset() const;
+
+    virtual int previousOffset(int current) const;
+    virtual int nextOffset(int current) const;
+
+    bool containsReversedText() const { return m_containsReversedText; }
+
+    InlineTextBox* findNextInlineTextBox(int offset, int& pos) const;
+
+    bool allowTabs() const { return !style()->collapseWhiteSpace(); }
+
+    void checkConsistency() const;
+
+protected:
+    virtual void setTextInternal(PassRefPtr<StringImpl>);
+    virtual void calcPrefWidths(int leadWidth);
+    virtual UChar previousCharacter();
+
+private:
+    // Make length() private so that callers that have a RenderText*
+    // will use the more efficient textLength() instead, while
+    // callers with a RenderObject* can continue to use length().
+    virtual unsigned length() const { return textLength(); }
+
+    void deleteTextBoxes();
+    bool containsOnlyWhitespace(unsigned from, unsigned len) const;
+    int widthFromCache(const Font&, int start, int len, int xPos) const;
+    bool isAllASCII() const { return m_isAllASCII; }
+
+    RefPtr<StringImpl> m_text;
+
+    InlineTextBox* m_firstTextBox;
+    InlineTextBox* m_lastTextBox;
+
+    int m_minWidth;
+    int m_maxWidth;
+    int m_beginMinWidth;
+    int m_endMinWidth;
+
+    unsigned m_selectionState : 3; // enums on Windows are signed, so this needs to be unsigned to prevent it turning negative. 
+    bool m_hasBreakableChar : 1; // Whether or not we can be broken into multiple lines.
+    bool m_hasBreak : 1; // Whether or not we have a hard break (e.g., <pre> with '\n').
+    bool m_hasTab : 1; // Whether or not we have a variable width tab character (e.g., <pre> with '\t').
+    bool m_hasBeginWS : 1; // Whether or not we begin with WS (only true if we aren't pre)
+    bool m_hasEndWS : 1; // Whether or not we end with WS (only true if we aren't pre)
+    bool m_linesDirty : 1; // This bit indicates that the text run has already dirtied specific
+                           // line boxes, and this hint will enable layoutInlineChildren to avoid
+                           // just dirtying everything when character data is modified (e.g., appended/inserted
+                           // or removed).
+    bool m_containsReversedText : 1;
+    bool m_isAllASCII : 1;
+};
+
+#ifdef NDEBUG
+inline void RenderText::checkConsistency() const
+{
+}
+#endif
+
+} // namespace WebCore
+
+#endif // RenderText_h