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Unified Diff: include/pdf/SkPDFDevice.h

Issue 841533002: Remove SkPDFDocument and SkPDFDevice from the public headers. (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Another Patch Set Created 5 years, 11 months ago
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Index: include/pdf/SkPDFDevice.h
diff --git a/include/pdf/SkPDFDevice.h b/include/pdf/SkPDFDevice.h
deleted file mode 100644
index 495354a0beec53500ff2ebfa3acb4faf6b9e81ba..0000000000000000000000000000000000000000
--- a/include/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
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