Delete RenderTextWin and RenderTextPango.

ui/gfx/render_text_win.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef UI_GFX_RENDER_TEXT_WIN_H_
-#define UI_GFX_RENDER_TEXT_WIN_H_
-
-#include <usp10.h>
-
-#include <map>
-#include <string>
-#include <vector>
-
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/scoped_vector.h"
-#include "ui/gfx/render_text.h"
-
-namespace gfx {
-
-namespace internal {
-
-struct TextRun {
-  TextRun();
-  ~TextRun();
-
-  Range range;
-  Font font;
-  // A gfx::Font::FontStyle flag to specify bold and italic styles.
-  // Supersedes |font.GetFontStyle()|. Stored separately to avoid calling
-  // |font.DeriveFont()|, which is expensive on Windows.
-  int font_style;
-
-  bool strike;
-  bool diagonal_strike;
-  bool underline;
-
-  int width;
-  // The cumulative widths of preceding runs.
-  int preceding_run_widths;
-
-  SCRIPT_ANALYSIS script_analysis;
-
-  scoped_ptr<WORD[]> glyphs;
-  scoped_ptr<WORD[]> logical_clusters;
-  scoped_ptr<SCRIPT_VISATTR[]> visible_attributes;
-  int glyph_count;
-
-  scoped_ptr<int[]> advance_widths;
-  scoped_ptr<GOFFSET[]> offsets;
-  ABC abc_widths;
-  SCRIPT_CACHE script_cache;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(TextRun);
-};
-
-}  // namespace internal
-
-// RenderTextWin is the Windows implementation of RenderText using Uniscribe.
-class RenderTextWin : public RenderText {
- public:
-  RenderTextWin();
-  virtual ~RenderTextWin();
-
-  // Overridden from RenderText:
-  virtual scoped_ptr<RenderText> CreateInstanceOfSameType() const override;
-  virtual Size GetStringSize() override;
-  virtual SelectionModel FindCursorPosition(const Point& point) override;
-  virtual std::vector<FontSpan> GetFontSpansForTesting() override;
-
- protected:
-  // Overridden from RenderText:
-  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 IsValidCursorIndex(size_t index) override;
-  virtual void ResetLayout() override;
-  virtual void EnsureLayout() override;
-  virtual void DrawVisualText(Canvas* canvas) override;
-
- private:
-  FRIEND_TEST_ALL_PREFIXES(RenderTextTest, Win_BreakRunsByUnicodeBlocks);
-  FRIEND_TEST_ALL_PREFIXES(RenderTextTest, Win_LogicalClusters);
-  FRIEND_TEST_ALL_PREFIXES(RenderTextTest, Multiline_MinWidth);
-  FRIEND_TEST_ALL_PREFIXES(RenderTextTest, Multiline_NormalWidth);
-  FRIEND_TEST_ALL_PREFIXES(RenderTextTest, BreakRunsByUnicodeBlocks);
-
-  void ItemizeLogicalText();
-  void LayoutVisualText();
-  void LayoutTextRun(internal::TextRun* run);
-
-  // Helper function that calls |ScriptShape()| on the run, which has logic to
-  // handle E_OUTOFMEMORY return codes.
-  HRESULT ShapeTextRunWithFont(internal::TextRun* run, const Font& font);
-
-  // Returns the number of characters in |run| that have missing glyphs.
-  int CountCharsWithMissingGlyphs(internal::TextRun* run,
-                                  HRESULT shaping_result) const;
-
-  // Return the run index that contains the argument; or the length of the
-  // |runs_| vector if argument exceeds the text length or width.
-  size_t GetRunContainingCaret(const SelectionModel& caret) const;
-  size_t GetRunContainingXCoord(int x) const;
-
-  // Given a |run|, returns the SelectionModel that contains the logical first
-  // or last caret position inside (not at a boundary of) the run.
-  // The returned value represents a cursor/caret position without a selection.
-  SelectionModel FirstSelectionModelInsideRun(const internal::TextRun* run);
-  SelectionModel LastSelectionModelInsideRun(const internal::TextRun* run);
-
-  // Cached HDC for performing Uniscribe API calls.
-  static HDC cached_hdc_;
-
-  // Cached map from font name to the last successful substitute font used.
-  // TODO(asvitkine): Move the caching logic to font_fallback_win.cc.
-  static std::map<std::string, Font> successful_substitute_fonts_;
-
-  SCRIPT_CONTROL script_control_;
-  SCRIPT_STATE script_state_;
-
-  ScopedVector<internal::TextRun> runs_;
-
-  // Single line width of the layout text.
-  int string_width_;
-
-  // Wrapped multiline size of the layout text.
-  Size multiline_string_size_;
-
-  scoped_ptr<int[]> visual_to_logical_;
-  scoped_ptr<int[]> logical_to_visual_;
-
-  bool needs_layout_;
-
-  DISALLOW_COPY_AND_ASSIGN(RenderTextWin);
-};
-
-}  // namespace gfx
-
-#endif  // UI_GFX_RENDER_TEXT_WIN_H_