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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 #include "ui/gfx/canvas.h" | |
| 6 | |
| 7 #import <Cocoa/Cocoa.h> | |
| 8 | |
| 9 #include "base/logging.h" | |
| 10 #include "base/strings/sys_string_conversions.h" | |
| 11 #include "third_party/skia/include/core/SkTypeface.h" | |
| 12 #include "ui/gfx/font_list.h" | |
| 13 #include "ui/gfx/rect.h" | |
| 14 | |
| 15 // Note: This is a temporary Skia-based implementation of the ui/gfx text | |
| 16 // rendering routines for views/aura. It replaces the stale Cocoa-based | |
| 17 // implementation. A future |canvas_skia.cc| implementation will supersede | |
| 18 // this and the other platform-specific implmenentations. Most drawing options, | |
| 19 // such as alignment, multi-line, and line heights are not implemented here. | |
| 20 | |
| 21 namespace { | |
| 22 | |
| 23 SkTypeface::Style FontTypefaceStyle(const gfx::Font& font) { | |
| 24 int style = 0; | |
| 25 if (font.GetStyle() & gfx::Font::BOLD) | |
| 26 style |= SkTypeface::kBold; | |
| 27 if (font.GetStyle() & gfx::Font::ITALIC) | |
| 28 style |= SkTypeface::kItalic; | |
| 29 | |
| 30 return static_cast<SkTypeface::Style>(style); | |
| 31 } | |
| 32 | |
| 33 } // namespace | |
| 34 | |
| 35 namespace gfx { | |
| 36 | |
| 37 // static | |
| 38 void Canvas::SizeStringInt(const base::string16& text, | |
| 39 const FontList& font_list, | |
| 40 int* width, | |
| 41 int* height, | |
| 42 int line_height, | |
| 43 int flags) { | |
| 44 DLOG_IF(WARNING, line_height != 0) << "Line heights not implemented."; | |
| 45 DLOG_IF(WARNING, flags & Canvas::MULTI_LINE) << "Multi-line not implemented."; | |
| 46 | |
| 47 NSFont* native_font = font_list.GetPrimaryFont().GetNativeFont(); | |
| 48 NSString* ns_string = base::SysUTF16ToNSString(text); | |
| 49 NSDictionary* attributes = | |
| 50 [NSDictionary dictionaryWithObject:native_font | |
| 51 forKey:NSFontAttributeName]; | |
| 52 NSSize string_size = [ns_string sizeWithAttributes:attributes]; | |
| 53 *width = string_size.width; | |
| 54 *height = font_list.GetHeight(); | |
| 55 } | |
| 56 | |
| 57 void Canvas::DrawStringRectWithShadows(const base::string16& text, | |
| 58 const FontList& font_list, | |
| 59 SkColor color, | |
| 60 const Rect& text_bounds, | |
| 61 int line_height, | |
| 62 int flags, | |
| 63 const ShadowValues& shadows) { | |
| 64 DLOG_IF(WARNING, line_height != 0) << "Line heights not implemented."; | |
| 65 DLOG_IF(WARNING, flags & Canvas::MULTI_LINE) << "Multi-line not implemented."; | |
| 66 DLOG_IF(WARNING, !shadows.empty()) << "Text shadows not implemented."; | |
| 67 | |
| 68 const Font& font = font_list.GetPrimaryFont(); | |
| 69 skia::RefPtr<SkTypeface> typeface = skia::AdoptRef( | |
| 70 SkTypeface::CreateFromName( | |
| 71 font.GetFontName().c_str(), FontTypefaceStyle(font))); | |
| 72 SkPaint paint; | |
| 73 paint.setTypeface(typeface.get()); | |
| 74 paint.setColor(color); | |
| 75 canvas_->drawText(text.c_str(), | |
| 76 text.size() * sizeof(base::string16::value_type), | |
| 77 text_bounds.x(), | |
| 78 text_bounds.bottom(), | |
| 79 paint); | |
| 80 } | |
| 81 | |
| 82 void Canvas::DrawStringRectWithHalo(const base::string16& text, | |
| 83 const FontList& font_list, | |
| 84 SkColor text_color, | |
| 85 SkColor halo_color, | |
| 86 const Rect& display_rect, | |
| 87 int flags) { | |
| 88 } | |
| 89 | |
| 90 } // namespace gfx | |
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Chromium Code Reviews
Issue 23454018:
Turn on canvas_skia for OSX (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src