--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/rendering/InlineTextBox.h Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,160 @@
+/*
+ * (C) 1999 Lars Knoll (knoll@kde.org)
+ * (C) 2000 Dirk Mueller (mueller@kde.org)
+ * Copyright (C) 2004, 2005, 2006, 2009 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 InlineTextBox_h
+#define InlineTextBox_h
+
+#include "InlineBox.h"
+#include "RenderText.h" // so textRenderer() can be inline
+
+namespace WebCore {
+
+struct CompositionUnderline;
+
+const unsigned short cNoTruncation = USHRT_MAX;
+const unsigned short cFullTruncation = USHRT_MAX - 1;
+
+// Helper functions shared by InlineTextBox / SVGRootInlineBox
+void updateGraphicsContext(GraphicsContext*, const Color& fillColor, const Color& strokeColor, float strokeThickness, ColorSpace);
+Color correctedTextColor(Color textColor, Color backgroundColor);
+
+class InlineTextBox : public InlineBox {
+public:
+ InlineTextBox(RenderObject* obj)
+ : InlineBox(obj)
+ , m_prevTextBox(0)
+ , m_nextTextBox(0)
+ , m_start(0)
+ , m_len(0)
+ , m_truncation(cNoTruncation)
+ {
+ }
+
+ InlineTextBox* prevTextBox() const { return m_prevTextBox; }
+ InlineTextBox* nextTextBox() const { return m_nextTextBox; }
+ void setNextTextBox(InlineTextBox* n) { m_nextTextBox = n; }
+ void setPreviousTextBox(InlineTextBox* p) { m_prevTextBox = p; }
+
+ unsigned start() const { return m_start; }
+ unsigned end() const { return m_len ? m_start + m_len - 1 : m_start; }
+ unsigned len() const { return m_len; }
+
+ void setStart(unsigned start) { m_start = start; }
+ void setLen(unsigned len) { m_len = len; }
+
+ void offsetRun(int d) { m_start += d; }
+
+ unsigned short truncation() { return m_truncation; }
+
+ bool hasHyphen() const { return m_hasEllipsisBoxOrHyphen; }
+ void setHasHyphen(bool hasHyphen) { m_hasEllipsisBoxOrHyphen = hasHyphen; }
+
+private:
+ virtual int selectionTop();
+ virtual int selectionHeight();
+
+public:
+ virtual IntRect calculateBoundaries() const { return IntRect(x(), y(), width(), height()); }
+
+ virtual IntRect selectionRect(int absx, int absy, int startPos, int endPos);
+ bool isSelected(int startPos, int endPos) const;
+ virtual void selectionStartEnd(int& sPos, int& ePos);
+
+protected:
+ virtual void paint(PaintInfo&, int tx, int ty);
+ virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty);
+
+public:
+ RenderText* textRenderer() const;
+
+private:
+ virtual void deleteLine(RenderArena*);
+ virtual void extractLine();
+ virtual void attachLine();
+
+public:
+ virtual RenderObject::SelectionState selectionState();
+
+private:
+ virtual void clearTruncation() { m_truncation = cNoTruncation; }
+ virtual int placeEllipsisBox(bool flowIsLTR, int visibleLeftEdge, int visibleRightEdge, int ellipsisWidth, bool& foundBox);
+
+public:
+ virtual bool isLineBreak() const;
+
+ void setSpaceAdd(int add) { m_width -= m_toAdd; m_toAdd = add; m_width += m_toAdd; }
+
+private:
+ virtual bool isInlineTextBox() const { return true; }
+
+public:
+ virtual int caretMinOffset() const;
+ virtual int caretMaxOffset() const;
+
+private:
+ virtual unsigned caretMaxRenderedOffset() const;
+
+ int textPos() const;
+
+public:
+ virtual int offsetForPosition(int x, bool includePartialGlyphs = true) const;
+ virtual int positionForOffset(int offset) const;
+
+ bool containsCaretOffset(int offset) const; // false for offset after line break
+
+ // Needs to be public, so the static paintTextWithShadows() function can use it.
+ static FloatSize applyShadowToGraphicsContext(GraphicsContext*, const ShadowData*, const FloatRect& textRect, bool stroked, bool opaque);
+
+private:
+ InlineTextBox* m_prevTextBox; // The previous box that also uses our RenderObject
+ InlineTextBox* m_nextTextBox; // The next box that also uses our RenderObject
+
+ int m_start;
+ unsigned short m_len;
+
+ unsigned short m_truncation; // Where to truncate when text overflow is applied. We use special constants to
+ // denote no truncation (the whole run paints) and full truncation (nothing paints at all).
+
+protected:
+ void paintCompositionBackground(GraphicsContext*, int tx, int ty, RenderStyle*, const Font&, int startPos, int endPos);
+ void paintDocumentMarkers(GraphicsContext*, int tx, int ty, RenderStyle*, const Font&, bool background);
+ void paintCompositionUnderline(GraphicsContext*, int tx, int ty, const CompositionUnderline&);
+#if PLATFORM(MAC)
+ void paintCustomHighlight(int tx, int ty, const AtomicString& type);
+#endif
+
+private:
+ void paintDecoration(GraphicsContext*, int tx, int ty, int decoration, const ShadowData*);
+ void paintSelection(GraphicsContext*, int tx, int ty, RenderStyle*, const Font&);
+ void paintSpellingOrGrammarMarker(GraphicsContext*, int tx, int ty, const DocumentMarker&, RenderStyle*, const Font&, bool grammar);
+ void paintTextMatchMarker(GraphicsContext*, int tx, int ty, const DocumentMarker&, RenderStyle*, const Font&);
+ void computeRectForReplacementMarker(int tx, int ty, const DocumentMarker&, RenderStyle*, const Font&);
+};
+
+inline RenderText* InlineTextBox::textRenderer() const
+{
+ return toRenderText(renderer());
+}
+
+} // namespace WebCore
+
+#endif // InlineTextBox_h