| OLD | NEW |
| 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef APP_GFX_CHROME_CANVAS_H_ | 5 #ifndef APP_GFX_CANVAS_H_ |
| 6 #define APP_GFX_CHROME_CANVAS_H_ | 6 #define APP_GFX_CANVAS_H_ |
| 7 | 7 |
| 8 #if defined(OS_WIN) | 8 #if defined(OS_WIN) |
| 9 #include <windows.h> | 9 #include <windows.h> |
| 10 #endif | 10 #endif |
| 11 | 11 |
| 12 #include <string> | 12 #include <string> |
| 13 | 13 |
| 14 #include "base/basictypes.h" | 14 #include "base/basictypes.h" |
| 15 #include "skia/ext/platform_canvas.h" | 15 #include "skia/ext/platform_canvas.h" |
| 16 | 16 |
| 17 namespace gfx { | |
| 18 class Font; | |
| 19 class Rect; | |
| 20 } | |
| 21 | |
| 22 #if defined(OS_LINUX) | 17 #if defined(OS_LINUX) |
| 23 typedef struct _cairo cairo_t; | 18 typedef struct _cairo cairo_t; |
| 24 #endif | 19 #endif |
| 25 | 20 |
| 26 // ChromeCanvas is the SkCanvas used by Views for all painting. It | 21 namespace gfx { |
| 27 // provides a handful of methods for the common operations used throughout | 22 |
| 28 // Views. With few exceptions, you should NOT create a ChromeCanvas directly, | 23 class Font; |
| 29 // rather one will be passed to you via the various paint methods in view. | 24 class Rect; |
| 25 |
| 26 // Canvas is a SkCanvas subclass that provides a number of methods for common |
| 27 // operations used throughout an application built using base/gfx and app/gfx. |
| 30 // | 28 // |
| 31 // All methods that take integer arguments (as is used throughout views) | 29 // All methods that take integer arguments (as is used throughout views) |
| 32 // end with Int. If you need to use methods provided by the superclass | 30 // end with Int. If you need to use methods provided by the superclass |
| 33 // you'll need to do a conversion. In particular you'll need to use | 31 // you'll need to do a conversion. In particular you'll need to use |
| 34 // macro SkIntToScalar(xxx), or if converting from a scalar to an integer | 32 // macro SkIntToScalar(xxx), or if converting from a scalar to an integer |
| 35 // SkScalarRound. | 33 // SkScalarRound. |
| 36 // | 34 // |
| 37 // A handful of methods in this class are overloaded providing an additional | 35 // A handful of methods in this class are overloaded providing an additional |
| 38 // argument of type SkPorterDuff::Mode. SkPorterDuff::Mode specifies how the | 36 // argument of type SkPorterDuff::Mode. SkPorterDuff::Mode specifies how the |
| 39 // source and destination colors are combined. Unless otherwise specified, | 37 // source and destination colors are combined. Unless otherwise specified, |
| 40 // the variant that does not take a SkPorterDuff::Mode uses a transfer mode | 38 // the variant that does not take a SkPorterDuff::Mode uses a transfer mode |
| 41 // of kSrcOver_Mode. | 39 // of kSrcOver_Mode. |
| 42 class ChromeCanvas : public skia::PlatformCanvas { | 40 class Canvas : public skia::PlatformCanvas { |
| 43 public: | 41 public: |
| 44 // Specifies the alignment for text rendered with the DrawStringInt method. | 42 // Specifies the alignment for text rendered with the DrawStringInt method. |
| 45 enum { | 43 enum { |
| 46 TEXT_ALIGN_LEFT = 1, | 44 TEXT_ALIGN_LEFT = 1, |
| 47 TEXT_ALIGN_CENTER = 2, | 45 TEXT_ALIGN_CENTER = 2, |
| 48 TEXT_ALIGN_RIGHT = 4, | 46 TEXT_ALIGN_RIGHT = 4, |
| 49 TEXT_VALIGN_TOP = 8, | 47 TEXT_VALIGN_TOP = 8, |
| 50 TEXT_VALIGN_MIDDLE = 16, | 48 TEXT_VALIGN_MIDDLE = 16, |
| 51 TEXT_VALIGN_BOTTOM = 32, | 49 TEXT_VALIGN_BOTTOM = 32, |
| 52 | 50 |
| 53 // Specifies the text consists of multiple lines. | 51 // Specifies the text consists of multiple lines. |
| 54 MULTI_LINE = 64, | 52 MULTI_LINE = 64, |
| 55 | 53 |
| 56 // By default DrawStringInt does not process the prefix ('&') character | 54 // By default DrawStringInt does not process the prefix ('&') character |
| 57 // specially. That is, the string "&foo" is rendered as "&foo". When | 55 // specially. That is, the string "&foo" is rendered as "&foo". When |
| 58 // rendering text from a resource that uses the prefix character for | 56 // rendering text from a resource that uses the prefix character for |
| 59 // mnemonics, the prefix should be processed and can be rendered as an | 57 // mnemonics, the prefix should be processed and can be rendered as an |
| 60 // underline (SHOW_PREFIX), or not rendered at all (HIDE_PREFIX). | 58 // underline (SHOW_PREFIX), or not rendered at all (HIDE_PREFIX). |
| 61 SHOW_PREFIX = 128, | 59 SHOW_PREFIX = 128, |
| 62 HIDE_PREFIX = 256, | 60 HIDE_PREFIX = 256, |
| 63 | 61 |
| 64 // Prevent ellipsizing | 62 // Prevent ellipsizing |
| 65 NO_ELLIPSIS = 512, | 63 NO_ELLIPSIS = 512, |
| 66 | 64 |
| 67 // Specifies if words can be split by new lines. | 65 // Specifies if words can be split by new lines. |
| 68 // This only works with MULTI_LINE. | 66 // This only works with MULTI_LINE. |
| 69 CHARACTER_BREAK = 1024, | 67 CHARACTER_BREAK = 1024, |
| 70 }; | 68 }; |
| 71 | 69 |
| 72 // Creates an empty ChromeCanvas. Callers must use initialize before using | 70 // Creates an empty Canvas. Callers must use initialize before using the |
| 73 // the canvas. | 71 // canvas. |
| 74 ChromeCanvas(); | 72 Canvas(); |
| 75 | 73 |
| 76 ChromeCanvas(int width, int height, bool is_opaque); | 74 Canvas(int width, int height, bool is_opaque); |
| 77 | 75 |
| 78 virtual ~ChromeCanvas(); | 76 virtual ~Canvas(); |
| 79 | 77 |
| 80 // Retrieves the clip rectangle and sets it in the specified rectangle if any. | 78 // Retrieves the clip rectangle and sets it in the specified rectangle if any. |
| 81 // Returns true if the clip rect is non-empty. | 79 // Returns true if the clip rect is non-empty. |
| 82 bool GetClipRect(gfx::Rect* clip_rect); | 80 bool GetClipRect(gfx::Rect* clip_rect); |
| 83 | 81 |
| 84 // Wrapper function that takes integer arguments. | 82 // Wrapper function that takes integer arguments. |
| 85 // Returns true if the clip is non-empty. | 83 // Returns true if the clip is non-empty. |
| 86 // See clipRect for specifics. | 84 // See clipRect for specifics. |
| 87 bool ClipRectInt(int x, int y, int w, int h); | 85 bool ClipRectInt(int x, int y, int w, int h); |
| 88 | 86 |
| (...skipping 111 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 200 private: | 198 private: |
| 201 #if defined(OS_WIN) | 199 #if defined(OS_WIN) |
| 202 // Draws text with the specified color, font and location. The text is | 200 // Draws text with the specified color, font and location. The text is |
| 203 // aligned to the left, vertically centered, clipped to the region. If the | 201 // aligned to the left, vertically centered, clipped to the region. If the |
| 204 // text is too big, it is truncated and '...' is added to the end. | 202 // text is too big, it is truncated and '...' is added to the end. |
| 205 void DrawStringInt(const std::wstring& text, HFONT font, | 203 void DrawStringInt(const std::wstring& text, HFONT font, |
| 206 const SkColor& color, int x, int y, int w, int h, | 204 const SkColor& color, int x, int y, int w, int h, |
| 207 int flags); | 205 int flags); |
| 208 #endif | 206 #endif |
| 209 | 207 |
| 210 DISALLOW_EVIL_CONSTRUCTORS(ChromeCanvas); | 208 DISALLOW_COPY_AND_ASSIGN(Canvas); |
| 211 }; | 209 }; |
| 212 | 210 |
| 213 #if defined(OS_WIN) || defined(OS_LINUX) | 211 #if defined(OS_WIN) || defined(OS_LINUX) |
| 214 typedef skia::CanvasPaintT<ChromeCanvas> ChromeCanvasPaint; | 212 typedef skia::CanvasPaintT<Canvas> CanvasPaint; |
| 215 #endif | 213 #endif |
| 216 | 214 |
| 217 #endif // APP_GFX_CHROME_CANVAS_H_ | 215 } // namespace gfx; |
| 216 |
| 217 #endif // #ifndef APP_GFX_CANVAS_H_ |
| OLD | NEW |