SkPDF: implement drawTextBlob()

src/pdf/SkPDFDevice.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkPDFDevice_DEFINED
 #define SkPDFDevice_DEFINED
 
@@ skipping 93 matching lines @@
                        const SkImage*,
                        const SkRect* src,
                        const SkRect& dst,
                        const SkPaint&,
                        SkCanvas::SrcRectConstraint) override;
     void drawText(const SkDraw&, const void* text, size_t len,
                   SkScalar x, SkScalar y, const SkPaint&) override;
     void drawPosText(const SkDraw&, const void* text, size_t len,
                      const SkScalar pos[], int scalarsPerPos,
                      const SkPoint& offset, const SkPaint&) override;
+    void drawTextBlob(const SkDraw&, const SkTextBlob*, SkScalar x, SkScalar y,
+                      const SkPaint &, SkDrawFilter*) override;
     void drawVertices(const SkDraw&, SkCanvas::VertexMode,
                       int vertexCount, const SkPoint verts[],
                       const SkPoint texs[], const SkColor colors[],
                       SkXfermode* xmode, const uint16_t indices[],
                       int indexCount, const SkPaint& paint) override;
     void drawDevice(const SkDraw&, SkBaseDevice*, int x, int y,
                     const SkPaint&) override;
 
     // PDF specific methods.
 
@@ skipping 155 matching lines @@
 
     // returns nullptr when a valid SkFont can not be produced
     SkPDFFont* updateFont(SkTypeface* typeface,
                           SkScalar textSize,
                           uint16_t glyphID,
                           ContentEntry* contentEntry);
     int getFontResourceIndex(SkTypeface* typeface, uint16_t glyphID);
 
 
     void internalDrawText(const SkDraw&, const void*, size_t, const SkScalar pos[],
-                          SkTextBlob::GlyphPositioning, SkPoint, const SkPaint&);
-
+                          SkTextBlob::GlyphPositioning, SkPoint, const SkPaint&,
+                          const uint32_t*, uint32_t, const char*);
 
     void internalDrawPaint(const SkPaint& paint, ContentEntry* contentEntry);
 
     void internalDrawImage(const SkMatrix& origMatrix,
                            const SkClipStack* clipStack,
                            const SkRegion& origClipRegion,
                            SkImageBitmap imageBitmap,
                            const SkPaint& paint);
 
     bool handleInversePath(const SkDraw& d, const SkPath& origPath,
                            const SkPaint& paint, bool pathIsMutable,
                            const SkMatrix* prePathMatrix = nullptr);
     void handlePointAnnotation(const SkPoint&, const SkMatrix&, const char key[], SkData* value);
     void handlePathAnnotation(const SkPath&, const SkDraw& d, const char key[], SkData* value);
 
     typedef SkBaseDevice INHERITED;
 
     // TODO(edisonn): Only SkDocument_PDF and SkPDFImageShader should be able to create
     // an SkPDFDevice
     //friend class SkDocument_PDF;
     //friend class SkPDFImageShader;
 };
 
 #endif