PDF: add support for named destinations

include/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
 
 #include "SkCanvas.h"
 #include "SkDevice.h"
 #include "SkPaint.h"
 #include "SkPath.h"
 #include "SkRect.h"
 #include "SkRefCnt.h"
 #include "SkStream.h"
+#include "SkTDArray.h"
 #include "SkTScopedPtr.h"
 
 class SkPDFArray;
 class SkPDFDevice;
 class SkPDFDict;
 class SkPDFFont;
 class SkPDFFormXObject;
 class SkPDFGlyphSetMap;
 class SkPDFGraphicState;
 class SkPDFObject;
 class SkPDFShader;
 class SkPDFStream;
 
 // Private classes.
 struct ContentEntry;
 struct GraphicStateEntry;
+struct NamedDestination;
 
 /** \class SkPDFDevice
 
     The drawing context for the PDF backend.
 */
 class SkPDFDevice : public SkDevice {
 public:
     /** Create a PDF drawing context with the given width and height.
      *  72 points/in means letter paper is 612x792.
      *  @param pageSize Page size in points.
@@ skipping 89 matching lines @@
      *                      device's resources recursively. (Useful for adding
      *                      objects to the catalog.)
      */
     SK_API void getResources(SkTDArray<SkPDFObject*>* resourceList,
                              bool recursive) const;
 
     /** Get the fonts used on this device.
      */
     SK_API const SkTDArray<SkPDFFont*>& getFontResources() const;
 
+    /** Add our named destinations to the supplied dictionary.
+     *  @param dict  Dictionary to add destinations to.
+     *  @param page  The PDF object representing the page for this device.
+     */
+    void appendDestinations(SkPDFDict* dict, SkPDFObject* page);
+
     /** Returns a copy of the media box for this device. The caller is required
      *  to unref() this when it is finished.
      */
     SK_API SkPDFArray* copyMediaBox() const;
 
     /** Get the annotations from this page, or NULL if there are none.
      */
     SK_API SkPDFArray* getAnnotations() const { return fAnnotations; }
 
     /** Returns a SkStream with the page contents.  The caller is responsible
@@ skipping 29 matching lines @@
     // order to get the right access levels without using friend.
     friend class ScopedContentEntry;
 
     SkISize fPageSize;
     SkISize fContentSize;
     SkMatrix fInitialTransform;
     SkClipStack fExistingClipStack;
     SkRegion fExistingClipRegion;
     SkPDFArray* fAnnotations;
     SkPDFDict* fResourceDict;
+    SkTDArray<NamedDestination*> fNamedDestinations;
 
     SkTDArray<SkPDFGraphicState*> fGraphicStateResources;
     SkTDArray<SkPDFObject*> fXObjectResources;
     SkTDArray<SkPDFFont*> fFontResources;
     SkTDArray<SkPDFObject*> fShaderResources;
 
     SkTScopedPtr<ContentEntry> fContentEntries;
     ContentEntry* fLastContentEntry;
     SkTScopedPtr<ContentEntry> fMarginContentEntries;
     ContentEntry* fLastMarginContentEntry;
@@ skipping 62 matching lines @@
                             const SkRegion& clipRegion,
                             const SkBitmap& bitmap,
                             const SkIRect* srcRect,
                             const SkPaint& paint);
 
     /** Helper method for copyContentToData. It is responsible for copying the
      *  list of content entries |entry| to |data|.
      */
     void copyContentEntriesToData(ContentEntry* entry, SkWStream* data) const;
 
-    bool handleAnnotations(const SkRect& r, const SkMatrix& matrix,
-                           const SkPaint& paint);
+    bool handleRectAnnotation(const SkRect& r, const SkMatrix& matrix,
+                              const SkPaint& paint);
+    bool handlePointAnnotation(const SkPoint* points, size_t count,
+                               const SkMatrix& matrix, const SkPaint& paint);
+    SkPDFDict* createLinkAnnotation(const SkRect& r, const SkMatrix& matrix);
+    void handleLinkToURL(SkData* urlData, const SkRect& r,
+                         const SkMatrix& matrix);
+    void handleLinkToNamedDest(SkData* nameData, const SkRect& r,
+                               const SkMatrix& matrix);
+    void defineNamedDestination(SkData* nameData, const SkPoint& point,
+                                const SkMatrix& matrix);
 
     typedef SkDevice INHERITED;
 };
 
 #endif