Revert "Remove SkPDFDocument and SkPDFDevice from the public headers."

src/pdf/SkPDFDevice.h

Index: src/pdf/SkPDFDevice.h
diff --git a/src/pdf/SkPDFDevice.h b/src/pdf/SkPDFDevice.h
deleted file mode 100644
index 495354a0beec53500ff2ebfa3acb4faf6b9e81ba..0000000000000000000000000000000000000000
--- a/src/pdf/SkPDFDevice.h
+++ /dev/null
@@ -1,339 +0,0 @@
-
-/*
- * 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 "SkDevice.h"
-#include "SkBitmap.h"
-#include "SkCanvas.h"
-#include "SkPaint.h"
-#include "SkPath.h"
-#include "SkPicture.h"
-#include "SkRect.h"
-#include "SkRefCnt.h"
-#include "SkStream.h"
-#include "SkTDArray.h"
-#include "SkTemplates.h"
-
-class SkPDFArray;
-class SkPDFDevice;
-class SkPDFDict;
-class SkPDFFont;
-class SkPDFFormXObject;
-class SkPDFGlyphSetMap;
-class SkPDFGraphicState;
-class SkPDFObject;
-class SkPDFResourceDict;
-class SkPDFShader;
-class SkPDFStream;
-class SkRRect;
-template <typename T> class SkTSet;
-
-// Private classes.
-struct ContentEntry;
-struct GraphicStateEntry;
-struct NamedDestination;
-
-/** \class SkPDFDevice
-
-    The drawing context for the PDF backend.
-*/
-class SkPDFDevice : public SkBaseDevice {
-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.
-     *  @param contentSize The content size of the page in points. This will be
-     *         combined with the initial transform to determine the drawing area
-     *         (as reported by the width and height methods). Anything outside
-     *         of the drawing area will be clipped.
-     *  @param initialTransform The initial transform to apply to the page.
-     *         This may be useful to, for example, move the origin in and
-     *         over a bit to account for a margin, scale the canvas,
-     *         or apply a rotation.  Note1: the SkPDFDevice also applies
-     *         a scale+translate transform to move the origin from the
-     *         bottom left (PDF default) to the top left.  Note2: drawDevice
-     *         (used by layer restore) draws the device after this initial
-     *         transform is applied, so the PDF device does an
-     *         inverse scale+translate to accommodate the one that SkPDFDevice
-     *         always does.
-     */
-    // Deprecated, please use SkDocument::CreatePdf() instead.
-    SK_API SkPDFDevice(const SkISize& pageSize, const SkISize& contentSize,
-                       const SkMatrix& initialTransform);
-    SK_API virtual ~SkPDFDevice();
-
-    /** These are called inside the per-device-layer loop for each draw call.
-     When these are called, we have already applied any saveLayer operations,
-     and are handling any looping from the paint, and any effects from the
-     DrawFilter.
-     */
-    void drawPaint(const SkDraw&, const SkPaint& paint) SK_OVERRIDE;
-    void drawPoints(const SkDraw&, SkCanvas::PointMode mode,
-                    size_t count, const SkPoint[],
-                    const SkPaint& paint) SK_OVERRIDE;
-    void drawRect(const SkDraw&, const SkRect& r, const SkPaint& paint) SK_OVERRIDE;
-    void drawOval(const SkDraw&, const SkRect& oval, const SkPaint& paint) SK_OVERRIDE;
-    void drawRRect(const SkDraw&, const SkRRect& rr, const SkPaint& paint) SK_OVERRIDE;
-    void drawPath(const SkDraw&, const SkPath& origpath,
-                  const SkPaint& paint, const SkMatrix* prePathMatrix,
-                  bool pathIsMutable) SK_OVERRIDE;
-    void drawBitmapRect(const SkDraw& draw, const SkBitmap& bitmap,
-                        const SkRect* src, const SkRect& dst,
-                        const SkPaint& paint,
-                        SkCanvas::DrawBitmapRectFlags flags) SK_OVERRIDE;
-    void drawBitmap(const SkDraw&, const SkBitmap& bitmap,
-                    const SkMatrix& matrix, const SkPaint&) SK_OVERRIDE;
-    void drawSprite(const SkDraw&, const SkBitmap& bitmap, int x, int y,
-                    const SkPaint& paint) SK_OVERRIDE;
-    void drawText(const SkDraw&, const void* text, size_t len,
-                  SkScalar x, SkScalar y, const SkPaint&) SK_OVERRIDE;
-    void drawPosText(const SkDraw&, const void* text, size_t len,
-                     const SkScalar pos[], int scalarsPerPos,
-                     const SkPoint& offset, const SkPaint&) SK_OVERRIDE;
-    void drawTextOnPath(const SkDraw&, const void* text, size_t len,
-                        const SkPath& path, const SkMatrix* matrix,
-                        const SkPaint& paint) SK_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) SK_OVERRIDE;
-    void drawDevice(const SkDraw&, SkBaseDevice*, int x, int y,
-                    const SkPaint&) SK_OVERRIDE;
-
-    void onAttachToCanvas(SkCanvas* canvas) SK_OVERRIDE;
-    void onDetachFromCanvas() SK_OVERRIDE;
-    SkImageInfo imageInfo() const SK_OVERRIDE;
-
-    enum DrawingArea {
-        kContent_DrawingArea,  // Drawing area for the page content.
-        kMargin_DrawingArea,   // Drawing area for the margin content.
-    };
-
-    /** Sets the drawing area for the device. Subsequent draw calls are directed
-     *  to the specific drawing area (margin or content). The default drawing
-     *  area is the content drawing area.
-     *
-     *  Currently if margin content is drawn and then a complex (for PDF) xfer
-     *  mode is used, like SrcIn, Clear, etc, the margin content will get
-     *  clipped. A simple way to avoid the bug is to always draw the margin
-     *  content last.
-     */
-    SK_API void setDrawingArea(DrawingArea drawingArea);
-
-    /** Sets the DCTEncoder for images.
-     *  @param encoder The encoder to encode a bitmap as JPEG (DCT).
-     *         Result of encodings are cached, if the encoder changes the
-     *         behaivor dynamically and an image is added to a second catalog,
-     *         we will likely use the result of the first encoding call.
-     *         By returning false from the encoder function, the encoder result
-     *         is not used.
-     *         Callers might not want to encode small images, as the time spent
-     *         encoding and decoding might not be worth the space savings,
-     *         if any at all.
-     */
-    void setDCTEncoder(SkPicture::EncodeBitmap encoder) {
-        fEncoder = encoder;
-    }
-
-    // PDF specific methods.
-
-    /** Returns the resource dictionary for this device.
-     */
-    SK_API SkPDFResourceDict* getResourceDict();
-
-    /** 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
-        for a reference to the returned value.
-        DEPRECATED: use copyContentToData()
-     */
-    SK_API SkStream* content() const;
-
-    /** Returns a SkStream with the page contents.  The caller is responsible
-     *  for calling data->unref() when it is finished.
-     */
-    SK_API SkData* copyContentToData() const;
-
-    SK_API const SkMatrix& initialTransform() const {
-        return fInitialTransform;
-    }
-
-    /** Returns a SkPDFGlyphSetMap which represents glyph usage of every font
-     *  that shows on this device.
-     */
-    const SkPDFGlyphSetMap& getFontGlyphUsage() const {
-        return *(fFontGlyphUsage.get());
-    }
-
-
-    /**
-     *  rasterDpi - the DPI at which features without native PDF support
-     *              will be rasterized (e.g. draw image with perspective,
-     *              draw text with perspective, ...)
-     *              A larger DPI would create a PDF that reflects the original
-     *              intent with better fidelity, but it can make for larger
-     *              PDF files too, which would use more memory while rendering,
-     *              and it would be slower to be processed or sent online or
-     *              to printer.
-     */
-    void setRasterDpi(SkScalar rasterDpi) {
-        fRasterDpi = rasterDpi;
-    }
-
-protected:
-    virtual const SkBitmap& onAccessBitmap() SK_OVERRIDE {
-        return fLegacyBitmap;
-    }
-
-    virtual SkSurface* newSurface(const SkImageInfo&, const SkSurfaceProps&) SK_OVERRIDE;
-
-private:
-    // TODO(vandebo): push most of SkPDFDevice's state into a core object in
-    // 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;
-    SkPDFResourceDict* fResourceDict;
-    SkTDArray<NamedDestination*> fNamedDestinations;
-
-    SkTDArray<SkPDFGraphicState*> fGraphicStateResources;
-    SkTDArray<SkPDFObject*> fXObjectResources;
-    SkTDArray<SkPDFFont*> fFontResources;
-    SkTDArray<SkPDFObject*> fShaderResources;
-
-    SkAutoTDelete<ContentEntry> fContentEntries;
-    ContentEntry* fLastContentEntry;
-    SkAutoTDelete<ContentEntry> fMarginContentEntries;
-    ContentEntry* fLastMarginContentEntry;
-    DrawingArea fDrawingArea;
-
-    const SkClipStack* fClipStack;
-
-    // Accessor and setter functions based on the current DrawingArea.
-    SkAutoTDelete<ContentEntry>* getContentEntries();
-    ContentEntry* getLastContentEntry();
-    void setLastContentEntry(ContentEntry* contentEntry);
-
-    // Glyph ids used for each font on this device.
-    SkAutoTDelete<SkPDFGlyphSetMap> fFontGlyphUsage;
-
-    SkPicture::EncodeBitmap fEncoder;
-    SkScalar fRasterDpi;
-
-    SkBitmap fLegacyBitmap;
-
-    SkPDFDevice(const SkISize& layerSize, const SkClipStack& existingClipStack,
-                const SkRegion& existingClipRegion);
-
-    // override from SkBaseDevice
-    virtual SkBaseDevice* onCreateCompatibleDevice(const CreateInfo&) SK_OVERRIDE;
-
-    void init();
-    void cleanUp(bool clearFontUsage);
-    SkPDFFormXObject* createFormXObjectFromDevice();
-
-    void drawFormXObjectWithMask(int xObjectIndex,
-                                 SkPDFFormXObject* mask,
-                                 const SkClipStack* clipStack,
-                                 const SkRegion& clipRegion,
-                                 SkXfermode::Mode mode,
-                                 bool invertClip);
-
-    // If the paint or clip is such that we shouldn't draw anything, this
-    // returns NULL and does not create a content entry.
-    // setUpContentEntry and finishContentEntry can be used directly, but
-    // the preferred method is to use the ScopedContentEntry helper class.
-    ContentEntry* setUpContentEntry(const SkClipStack* clipStack,
-                                    const SkRegion& clipRegion,
-                                    const SkMatrix& matrix,
-                                    const SkPaint& paint,
-                                    bool hasText,
-                                    SkPDFFormXObject** dst);
-    void finishContentEntry(SkXfermode::Mode xfermode,
-                            SkPDFFormXObject* dst,
-                            SkPath* shape);
-    bool isContentEmpty();
-
-    void populateGraphicStateEntryFromPaint(const SkMatrix& matrix,
-                                            const SkClipStack& clipStack,
-                                            const SkRegion& clipRegion,
-                                            const SkPaint& paint,
-                                            bool hasText,
-                                            GraphicStateEntry* entry);
-    int addGraphicStateResource(SkPDFGraphicState* gs);
-    int addXObjectResource(SkPDFObject* xObject);
-
-    void updateFont(const SkPaint& paint, uint16_t glyphID,
-                    ContentEntry* contentEntry);
-    int getFontResourceIndex(SkTypeface* typeface, uint16_t glyphID);
-
-    void internalDrawPaint(const SkPaint& paint, ContentEntry* contentEntry);
-    void internalDrawBitmap(const SkMatrix& matrix,
-                            const SkClipStack* clipStack,
-                            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;
-
-#ifdef SK_PDF_USE_PATHOPS
-    bool handleInversePath(const SkDraw& d, const SkPath& origPath,
-                           const SkPaint& paint, bool pathIsMutable,
-                           const SkMatrix* prePathMatrix = NULL);
-#endif
-    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 SkBaseDevice INHERITED;
-
-    // TODO(edisonn): Only SkDocument_PDF and SkPDFImageShader should be able to create
-    // an SkPDFDevice
-    //friend class SkDocument_PDF;
-    //friend class SkPDFImageShader;
-};
-
-#endif