The Tor Browser: gfx/skia/trunk/src/pdf/SkPDFDeviceFlattener.h@a63d609f5ebe

     1 /*

     2  * Copyright 2013 Google Inc.

     3  *

     4  * Use of this source code is governed by a BSD-style license that can be

     5  * found in the LICENSE file.

     6  */

     8 #ifndef SkPDFDeviceFlattener_DEFINED

     9 #define SkPDFDeviceFlattener_DEFINED

    11 #include "SkPDFDevice.h"

    14 /** \class SkPDFDeviceFlattener

    16     The PDF Device Flattener is used to flatten features without native support in PDF.

    17     For now, the only one implemented is Perspective.

    19     TODO(edisonn): Rename the class once we know all the things it will do.

    20 */

    21 class SkPDFDeviceFlattener : public SkPDFDevice {

    22 private:

    23     typedef SkPDFDevice INHERITED;

    25     SK_API SkPDFDeviceFlattener(const SkSize& pageSize, const SkRect* trimBox = NULL);

    27 public:

    28     SK_API virtual ~SkPDFDeviceFlattener();

    30     virtual void drawPoints(const SkDraw&, SkCanvas::PointMode mode,

    31                             size_t count, const SkPoint[],

    32                             const SkPaint& paint) SK_OVERRIDE;

    33     virtual void drawRect(const SkDraw&, const SkRect& r, const SkPaint& paint);

    34     virtual void drawPath(const SkDraw&, const SkPath& origpath,

    35                           const SkPaint& paint, const SkMatrix* prePathMatrix,

    36                           bool pathIsMutable) SK_OVERRIDE;

    37     virtual void drawText(const SkDraw&, const void* text, size_t len,

    38                           SkScalar x, SkScalar y, const SkPaint&) SK_OVERRIDE;

    39     virtual void drawPosText(const SkDraw&, const void* text, size_t len,

    40                              const SkScalar pos[], SkScalar constY,

    41                              int scalarsPerPos, const SkPaint&) SK_OVERRIDE;

    42     virtual void drawTextOnPath(const SkDraw&, const void* text, size_t len,

    43                                 const SkPath& path, const SkMatrix* matrix,

    44                                 const SkPaint& paint) SK_OVERRIDE;

    45 private:

    47     bool mustFlatten(const SkDraw& d) const;

    48     bool mustPathText(const SkDraw& d, const SkPaint& paint);

    50     friend class SkDocument_PDF;

    51 };

    53 #endif  // SkPDFDeviceFlattener_DEFINED

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