#ifndef UI_GFX_RENDER_TEXT_PANGO_H_
#define UI_GFX_RENDER_TEXT_PANGO_H_
#include <pango/pango.h>
#include <vector>
#include "ui/gfx/render_text.h"
namespace gfx {
class RenderTextPango : public RenderText {
public:
RenderTextPango();
virtual ~RenderTextPango();
virtual Size GetStringSize() OVERRIDE;
virtual SelectionModel FindCursorPosition(const Point& point) OVERRIDE;
virtual std::vector<FontSpan> GetFontSpansForTesting() OVERRIDE;
protected:
virtual int GetLayoutTextBaseline() OVERRIDE;
virtual SelectionModel AdjacentCharSelectionModel(
const SelectionModel& selection,
VisualCursorDirection direction) OVERRIDE;
virtual SelectionModel AdjacentWordSelectionModel(
const SelectionModel& selection,
VisualCursorDirection direction) OVERRIDE;
virtual Range GetGlyphBounds(size_t index) OVERRIDE;
virtual std::vector<Rect> GetSubstringBounds(const Range& range) OVERRIDE;
virtual size_t TextIndexToLayoutIndex(size_t index) const OVERRIDE;
virtual size_t LayoutIndexToTextIndex(size_t index) const OVERRIDE;
virtual bool IsCursorablePosition(size_t position) OVERRIDE;
virtual void ResetLayout() OVERRIDE;
virtual void EnsureLayout() OVERRIDE;
virtual void DrawVisualText(Canvas* canvas) OVERRIDE;
private:
friend class RenderTextTest;
FRIEND_TEST_ALL_PREFIXES(RenderTextTest, PangoAttributes);
GSList* GetRunContainingCaret(const SelectionModel& caret) const;
SelectionModel FirstSelectionModelInsideRun(const PangoItem* run);
SelectionModel LastSelectionModelInsideRun(const PangoItem* run);
void SetupPangoAttributes(PangoLayout* layout);
void AppendPangoAttribute(size_t start,
size_t end,
PangoAttribute* pango_attr,
PangoAttrList* attrs);
size_t GetGlyphTextIndex(PangoLayoutRun* run, int glyph_index) const;
PangoLayout* layout_;
PangoLayoutLine* current_line_;
PangoLogAttr* log_attrs_;
int num_log_attrs_;
const char* layout_text_;
DISALLOW_COPY_AND_ASSIGN(RenderTextPango);
};
}
#endif