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1 /* | 1 /* |
2 * Copyright 2010 Google Inc. | 2 * Copyright 2010 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef GrTextContext_DEFINED | 8 #ifndef GrTextContext_DEFINED |
9 #define GrTextContext_DEFINED | 9 #define GrTextContext_DEFINED |
10 | 10 |
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46 GrContext* fContext; | 46 GrContext* fContext; |
47 // TODO we probably don't really need to store a back pointer to the owning
SkGpuDevice, except | 47 // TODO we probably don't really need to store a back pointer to the owning
SkGpuDevice, except |
48 // we need to be able to call drawPath on it in the event no other text cont
ext can draw the | 48 // we need to be able to call drawPath on it in the event no other text cont
ext can draw the |
49 // text. We might be able to move this logic to context though. This is un
reffed because | 49 // text. We might be able to move this logic to context though. This is un
reffed because |
50 // GrTextContext is completely owned by SkGpuDevice | 50 // GrTextContext is completely owned by SkGpuDevice |
51 SkGpuDevice* fGpuDevice; | 51 SkGpuDevice* fGpuDevice; |
52 SkDeviceProperties fDeviceProperties; | 52 SkDeviceProperties fDeviceProperties; |
53 | 53 |
54 SkAutoTUnref<GrRenderTarget> fRenderTarget; | 54 SkAutoTUnref<GrRenderTarget> fRenderTarget; |
55 GrClip fClip; | 55 GrClip fClip; |
56 GrDrawTarget* fDrawTarget; | |
57 SkIRect fClipRect; | 56 SkIRect fClipRect; |
58 SkIRect fRegionClipBounds; | 57 SkIRect fRegionClipBounds; |
59 GrPaint fPaint; | 58 GrPaint fPaint; |
60 SkPaint fSkPaint; | 59 SkPaint fSkPaint; |
61 | 60 |
62 GrTextContext(GrContext*, SkGpuDevice*, const SkDeviceProperties&); | 61 GrTextContext(GrContext*, SkGpuDevice*, const SkDeviceProperties&); |
63 | 62 |
64 virtual bool canDraw(const GrRenderTarget*, const GrClip&, const GrPaint&, | 63 virtual bool canDraw(const GrRenderTarget*, const GrClip&, const GrPaint&, |
65 const SkPaint&, const SkMatrix& viewMatrix) = 0; | 64 const SkPaint&, const SkMatrix& viewMatrix) = 0; |
66 | 65 |
67 virtual void onDrawText(GrRenderTarget*, const GrClip&, const GrPaint&, cons
t SkPaint&, | 66 virtual void onDrawText(GrRenderTarget*, const GrClip&, const GrPaint&, cons
t SkPaint&, |
68 const SkMatrix& viewMatrix, const char text[], size_
t byteLength, | 67 const SkMatrix& viewMatrix, const char text[], size_
t byteLength, |
69 SkScalar x, SkScalar y, const SkIRect& clipBounds) =
0; | 68 SkScalar x, SkScalar y, const SkIRect& clipBounds) =
0; |
70 virtual void onDrawPosText(GrRenderTarget*, const GrClip&, const GrPaint&, c
onst SkPaint&, | 69 virtual void onDrawPosText(GrRenderTarget*, const GrClip&, const GrPaint&, c
onst SkPaint&, |
71 const SkMatrix& viewMatrix, | 70 const SkMatrix& viewMatrix, |
72 const char text[], size_t byteLength, | 71 const char text[], size_t byteLength, |
73 const SkScalar pos[], int scalarsPerPosition, | 72 const SkScalar pos[], int scalarsPerPosition, |
74 const SkPoint& offset, const SkIRect& clipBounds)
= 0; | 73 const SkPoint& offset, const SkIRect& clipBounds)
= 0; |
75 | 74 |
76 void drawTextAsPath(const SkPaint& origPaint, const SkMatrix& viewMatrix, | 75 void drawTextAsPath(const SkPaint& origPaint, const SkMatrix& viewMatrix, |
77 const char text[], size_t byteLength, SkScalar x, SkScal
ar y, | 76 const char text[], size_t byteLength, SkScalar x, SkScal
ar y, |
78 const SkIRect& clipBounds); | 77 const SkIRect& clipBounds); |
79 void drawPosTextAsPath(const SkPaint& origPaint, const SkMatrix& viewMatrix, | 78 void drawPosTextAsPath(const SkPaint& origPaint, const SkMatrix& viewMatrix, |
80 const char text[], size_t byteLength, | 79 const char text[], size_t byteLength, |
81 const SkScalar pos[], int scalarsPerPosition, | 80 const SkScalar pos[], int scalarsPerPosition, |
82 const SkPoint& offset, const SkIRect& clipBounds); | 81 const SkPoint& offset, const SkIRect& clipBounds); |
83 | 82 |
84 void init(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&, | 83 void init(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&, |
85 const SkIRect& regionClipBounds); | 84 const SkIRect& regionClipBounds); |
86 void finish() { fDrawTarget = NULL; } | |
87 | 85 |
88 static GrFontScaler* GetGrFontScaler(SkGlyphCache* cache); | 86 static GrFontScaler* GetGrFontScaler(SkGlyphCache* cache); |
89 // sets extent in stopVector and returns glyph count | 87 // sets extent in stopVector and returns glyph count |
90 static int MeasureText(SkGlyphCache* cache, SkDrawCacheProc glyphCacheProc, | 88 static int MeasureText(SkGlyphCache* cache, SkDrawCacheProc glyphCacheProc, |
91 const char text[], size_t byteLength, SkVector* stopV
ector); | 89 const char text[], size_t byteLength, SkVector* stopV
ector); |
92 | 90 |
93 friend class BitmapTextBatch; | 91 friend class BitmapTextBatch; |
94 }; | 92 }; |
95 | 93 |
96 #endif | 94 #endif |
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