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Diffstat (limited to 'src/3rdparty/webkit/WebCore/rendering/InlineTextBox.h')
-rw-r--r-- | src/3rdparty/webkit/WebCore/rendering/InlineTextBox.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/rendering/InlineTextBox.h b/src/3rdparty/webkit/WebCore/rendering/InlineTextBox.h new file mode 100644 index 0000000..d8a250b --- /dev/null +++ b/src/3rdparty/webkit/WebCore/rendering/InlineTextBox.h @@ -0,0 +1,139 @@ +/* + * This file is part of the DOM implementation for KDE. + * + * (C) 1999 Lars Knoll (knoll@kde.org) + * (C) 2000 Dirk Mueller (mueller@kde.org) + * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc. + * + * 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 "DocumentMarker.h" +#include "InlineRunBox.h" +#include "RenderText.h" + +namespace WebCore { + +const unsigned short cNoTruncation = USHRT_MAX; +const unsigned short cFullTruncation = USHRT_MAX - 1; + +class String; +class StringImpl; +class HitTestResult; +class Position; + +struct CompositionUnderline; + +// Helper functions shared by InlineTextBox / SVGRootInlineBox +void updateGraphicsContext(GraphicsContext* context, const Color& fillColor, const Color& strokeColor, float strokeThickness); +Color correctedTextColor(Color textColor, Color backgroundColor); + +class InlineTextBox : public InlineRunBox { +public: + InlineTextBox(RenderObject* obj) + : InlineRunBox(obj) + , m_start(0) + , m_len(0) + , m_truncation(cNoTruncation) + { + } + + InlineTextBox* nextTextBox() const { return static_cast<InlineTextBox*>(nextLineBox()); } + InlineTextBox* prevTextBox() const { return static_cast<InlineTextBox*>(prevLineBox()); } + + 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; } + + virtual int selectionTop(); + virtual int selectionHeight(); + + virtual IntRect selectionRect(int absx, int absy, int startPos, int endPos); + bool isSelected(int startPos, int endPos) const; + void selectionStartEnd(int& sPos, int& ePos); + + virtual void paint(RenderObject::PaintInfo&, int tx, int ty); + virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty); + + RenderText* textObject() const; + + virtual void deleteLine(RenderArena*); + virtual void extractLine(); + virtual void attachLine(); + + virtual RenderObject::SelectionState selectionState(); + + virtual void clearTruncation() { m_truncation = cNoTruncation; } + virtual int placeEllipsisBox(bool ltr, int blockEdge, int ellipsisWidth, bool& foundBox); + + virtual bool isLineBreak() const; + + void setSpaceAdd(int add) { m_width -= m_toAdd; m_toAdd = add; m_width += m_toAdd; } + int spaceAdd() { return m_toAdd; } + + virtual bool isInlineTextBox() { return true; } + virtual bool isText() const { return m_treatAsText; } + void setIsText(bool b) { m_treatAsText = b; } + + virtual int caretMinOffset() const; + virtual int caretMaxOffset() const; + virtual unsigned caretMaxRenderedOffset() const; + + int textPos() const; + 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 + + 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, ShadowData* shadow); + void paintSelection(GraphicsContext*, int tx, int ty, RenderStyle*, const Font*); + void paintSpellingOrGrammarMarker(GraphicsContext*, int tx, int ty, DocumentMarker, RenderStyle*, const Font*, bool grammar); + void paintTextMatchMarker(GraphicsContext*, int tx, int ty, DocumentMarker, RenderStyle*, const Font*); + friend class RenderText; +}; + +inline RenderText* InlineTextBox::textObject() const +{ + return static_cast<RenderText*>(m_object); +} + +} // namespace WebCore + +#endif // InlineTextBox_h |