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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef UI_GFX_RENDER_TEXT_MAC_H_ | |
| 6 #define UI_GFX_RENDER_TEXT_MAC_H_ | |
| 7 | |
| 8 #include <ApplicationServices/ApplicationServices.h> | |
| 9 | |
| 10 #include <string> | |
| 11 #include <vector> | |
| 12 | |
| 13 #include "base/mac/scoped_cftyperef.h" | |
| 14 #include "ui/gfx/render_text.h" | |
| 15 | |
| 16 namespace gfx { | |
| 17 | |
| 18 // RenderTextMac is the Mac implementation of RenderText that uses CoreText for | |
| 19 // layout and Skia for drawing. | |
| 20 // | |
| 21 // Note: The current implementation only supports drawing and sizing the text, | |
| 22 // but not text selection or cursor movement. | |
| 23 class RenderTextMac : public RenderText { | |
| 24 public: | |
| 25 RenderTextMac(); | |
| 26 ~RenderTextMac() override; | |
| 27 | |
| 28 // Overridden from RenderText: | |
| 29 Size GetStringSize() override; | |
| 30 SizeF GetStringSizeF() override; | |
| 31 SelectionModel FindCursorPosition(const Point& point) override; | |
| 32 std::vector<FontSpan> GetFontSpansForTesting() override; | |
| 33 | |
| 34 protected: | |
| 35 // Overridden from RenderText: | |
| 36 int GetLayoutTextBaseline() override; | |
| 37 SelectionModel AdjacentCharSelectionModel( | |
| 38 const SelectionModel& selection, | |
| 39 VisualCursorDirection direction) override; | |
| 40 SelectionModel AdjacentWordSelectionModel( | |
| 41 const SelectionModel& selection, | |
| 42 VisualCursorDirection direction) override; | |
| 43 Range GetGlyphBounds(size_t index) override; | |
| 44 std::vector<Rect> GetSubstringBounds(const Range& range) override; | |
| 45 size_t TextIndexToLayoutIndex(size_t index) const override; | |
| 46 size_t LayoutIndexToTextIndex(size_t index) const override; | |
| 47 bool IsValidCursorIndex(size_t index) override; | |
| 48 void ResetLayout() override; | |
| 49 void EnsureLayout() override; | |
| 50 void DrawVisualText(Canvas* canvas) override; | |
| 51 | |
| 52 private: | |
| 53 struct TextRun { | |
| 54 CTRunRef ct_run; | |
| 55 SkPoint origin; | |
| 56 std::vector<uint16> glyphs; | |
| 57 std::vector<SkPoint> glyph_positions; | |
| 58 SkScalar width; | |
| 59 std::string font_name; | |
| 60 int font_style; | |
| 61 SkScalar text_size; | |
| 62 SkColor foreground; | |
| 63 bool underline; | |
| 64 bool strike; | |
| 65 bool diagonal_strike; | |
| 66 | |
| 67 TextRun(); | |
| 68 ~TextRun(); | |
| 69 }; | |
| 70 | |
| 71 // Applies RenderText styles to |attr_string| with the given |ct_font|. | |
| 72 void ApplyStyles(CFMutableAttributedStringRef attr_string, CTFontRef ct_font); | |
| 73 | |
| 74 // Updates |runs_| based on |line_| and sets |runs_valid_| to true. | |
| 75 void ComputeRuns(); | |
| 76 | |
| 77 // The Core Text line of text. Created by |EnsureLayout()|. | |
| 78 base::ScopedCFTypeRef<CTLineRef> line_; | |
| 79 | |
| 80 // Array to hold CFAttributedString attributes that allows Core Text to hold | |
| 81 // weak references to them without leaking. | |
| 82 base::ScopedCFTypeRef<CFMutableArrayRef> attributes_; | |
| 83 | |
| 84 // Visual dimensions of the text. Computed by |EnsureLayout()|. | |
| 85 SizeF string_size_; | |
| 86 | |
| 87 // Common baseline for this line of text. Computed by |EnsureLayout()|. | |
| 88 SkScalar common_baseline_; | |
| 89 | |
| 90 // Visual text runs. Only valid if |runs_valid_| is true. Computed by | |
| 91 // |ComputeRuns()|. | |
| 92 std::vector<TextRun> runs_; | |
| 93 | |
| 94 // Indicates that |runs_| are valid, set by |ComputeRuns()|. | |
| 95 bool runs_valid_; | |
| 96 | |
| 97 DISALLOW_COPY_AND_ASSIGN(RenderTextMac); | |
| 98 }; | |
| 99 | |
| 100 } // namespace gfx | |
| 101 | |
| 102 #endif // UI_GFX_RENDER_TEXT_MAC_H_ | |
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Chromium Code Reviews
Issue 854713003:
More old files deletion. (Closed)
Base URL: https://github.com/domokit/mojo.git@master