Start whittling down GrTextContext

src/gpu/text/GrTextContext.h

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrTextContext_DEFINED
 #define GrTextContext_DEFINED
 
 #include "GrClip.h"
 #include "GrGlyph.h"
 #include "GrPaint.h"
 #include "SkSurfaceProps.h"
 #include "SkPostConfig.h"
 
 class GrClip;
 class GrContext;
 class GrDrawContext;
 class GrFontScaler;
 class SkDrawFilter;
 class SkTextBlob;
 
 /*
  * This class wraps the state for a single text render
  */
 class GrTextContext {
 public:
-    virtual ~GrTextContext();
+    virtual ~GrTextContext() {}
 
-    void drawText(GrDrawContext* dc,
-                  const GrClip&,  const GrPaint&, const SkPaint&,
-                  const SkMatrix& viewMatrix, const char text[], size_t byteLength, SkScalar x,
-                  SkScalar y, const SkIRect& clipBounds);
-    void drawPosText(GrDrawContext* dc,
-                     const GrClip&, const GrPaint&, const SkPaint&,
-                     const SkMatrix& viewMatrix,
-                     const char text[], size_t byteLength,
-                     const SkScalar pos[], int scalarsPerPosition,
-                     const SkPoint& offset, const SkIRect& clipBounds);
+    virtual void drawText(GrDrawContext* dc,
+                          const GrClip&,  const GrPaint&, const SkPaint&,
+                          const SkMatrix& viewMatrix, const char text[], size_t byteLength,
+                          SkScalar x, SkScalar y, const SkIRect& clipBounds) = 0;
+    virtual void drawPosText(GrDrawContext* dc,
+                             const GrClip&, const GrPaint&, const SkPaint&,
+                             const SkMatrix& viewMatrix,
+                             const char text[], size_t byteLength,
+                             const SkScalar pos[], int scalarsPerPosition,
+                             const SkPoint& offset, const SkIRect& clipBounds) = 0;
     virtual void drawTextBlob(GrDrawContext* dc, const GrClip&, const SkPaint&,
                               const SkMatrix& viewMatrix, const SkTextBlob*,
                               SkScalar x, SkScalar y,
-                              SkDrawFilter*, const SkIRect& clipBounds);
+                              SkDrawFilter*, const SkIRect& clipBounds) = 0;
 
     static bool ShouldDisableLCD(const SkPaint& paint);
 
 protected:
-    GrTextContext*                 fFallbackTextContext;
     GrContext*                     fContext;
     SkSurfaceProps                 fSurfaceProps;
 
     GrTextContext(GrContext*, const SkSurfaceProps&);
 
-    virtual bool canDraw(const SkPaint&, const SkMatrix& viewMatrix) = 0;
-
-    virtual void onDrawText(GrDrawContext*, const GrClip&,
-                            const GrPaint&, const SkPaint&,
-                            const SkMatrix& viewMatrix, const char text[], size_t byteLength,
-                            SkScalar x, SkScalar y, const SkIRect& clipBounds) = 0;
-    virtual void onDrawPosText(GrDrawContext*, const GrClip&,
-                               const GrPaint&, const SkPaint&,
-                               const SkMatrix& viewMatrix,
-                               const char text[], size_t byteLength,
-                               const SkScalar pos[], int scalarsPerPosition,
-                               const SkPoint& offset, const SkIRect& clipBounds) = 0;
-
     static GrFontScaler* GetGrFontScaler(SkGlyphCache* cache);
     static uint32_t FilterTextFlags(const SkSurfaceProps& surfaceProps, const SkPaint& paint);
 
     friend class GrAtlasTextBatch;
     friend class GrAtlasTextBlob; // for FilterTextFlags
     friend class GrTextUtils; // for some static functions
 };
 
 #endif