The Tor Browser: gfx/skia/trunk/include/core/SkPathEffect.h@129ffea94266 (annotated)

gfx/skia/trunk/include/core/SkPathEffect.h@129ffea94266 (annotated)

gfx/skia/trunk/include/core/SkPathEffect.h

Sat, 03 Jan 2015 20:18:00 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Sat, 03 Jan 2015 20:18:00 +0100
branch: TOR_BUG_3246
changeset 7: 129ffea94266
permissions: -rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef SkPathEffect_DEFINED
 #define SkPathEffect_DEFINED
 #include "SkFlattenable.h"
 #include "SkPath.h"
 #include "SkPoint.h"
 #include "SkRect.h"
 #include "SkStrokeRec.h"
 #include "SkTDArray.h"
 class SkPath;
 /** \class SkPathEffect
     SkPathEffect is the base class for objects in the SkPaint that affect
     the geometry of a drawing primitive before it is transformed by the
     canvas' matrix and drawn.
     Dashing is implemented as a subclass of SkPathEffect.
 */
 class SK_API SkPathEffect : public SkFlattenable {
 public:
     SK_DECLARE_INST_COUNT(SkPathEffect)
     /**
      *  Given a src path (input) and a stroke-rec (input and output), apply
      *  this effect to the src path, returning the new path in dst, and return
      *  true. If this effect cannot be applied, return false and ignore dst
      *  and stroke-rec.
      *
      *  The stroke-rec specifies the initial request for stroking (if any).
      *  The effect can treat this as input only, or it can choose to change
      *  the rec as well. For example, the effect can decide to change the
      *  stroke's width or join, or the effect can change the rec from stroke
      *  to fill (or fill to stroke) in addition to returning a new (dst) path.
      *
      *  If this method returns true, the caller will apply (as needed) the
      *  resulting stroke-rec to dst and then draw.
      */
     virtual bool filterPath(SkPath* dst, const SkPath& src,
                             SkStrokeRec*, const SkRect* cullR) const = 0;
     /**
      *  Compute a conservative bounds for its effect, given the src bounds.
      *  The baseline implementation just assigns src to dst.
      */
     virtual void computeFastBounds(SkRect* dst, const SkRect& src) const;
     /** \class PointData
         PointData aggregates all the information needed to draw the point
         primitives returned by an 'asPoints' call.
     */
     class PointData {
     public:
         PointData()
             : fFlags(0)
             , fPoints(NULL)
             , fNumPoints(0) {
             fSize.set(SK_Scalar1, SK_Scalar1);
             // 'asPoints' needs to initialize/fill-in 'fClipRect' if it sets
             // the kUseClip flag
         };
         ~PointData() {
             delete [] fPoints;
         }
         // TODO: consider using passed-in flags to limit the work asPoints does.
         // For example, a kNoPath flag could indicate don't bother generating
         // stamped solutions.
         // Currently none of these flags are supported.
         enum PointFlags {
             kCircles_PointFlag            = 0x01,   // draw points as circles (instead of rects)
             kUsePath_PointFlag            = 0x02,   // draw points as stamps of the returned path
             kUseClip_PointFlag            = 0x04,   // apply 'fClipRect' before drawing the points
         };
         uint32_t           fFlags;      // flags that impact the drawing of the points
         SkPoint*           fPoints;     // the center point of each generated point
         int                fNumPoints;  // number of points in fPoints
         SkVector           fSize;       // the size to draw the points
         SkRect             fClipRect;   // clip required to draw the points (if kUseClip is set)
         SkPath             fPath;       // 'stamp' to be used at each point (if kUsePath is set)
         SkPath             fFirst;      // If not empty, contains geometry for first point
         SkPath             fLast;       // If not empty, contains geometry for last point
     };
     /**
      *  Does applying this path effect to 'src' yield a set of points? If so,
      *  optionally return the points in 'results'.
      */
     virtual bool asPoints(PointData* results, const SkPath& src,
                           const SkStrokeRec&, const SkMatrix&,
                           const SkRect* cullR) const;
     SK_DEFINE_FLATTENABLE_TYPE(SkPathEffect)
 protected:
     SkPathEffect() {}
     SkPathEffect(SkReadBuffer& buffer) : INHERITED(buffer) {}
 private:
     // illegal
     SkPathEffect(const SkPathEffect&);
     SkPathEffect& operator=(const SkPathEffect&);
     typedef SkFlattenable INHERITED;
 };
 /** \class SkPairPathEffect
     Common baseclass for Compose and Sum. This subclass manages two pathEffects,
     including flattening them. It does nothing in filterPath, and is only useful
     for managing the lifetimes of its two arguments.
 */
 class SkPairPathEffect : public SkPathEffect {
 public:
     virtual ~SkPairPathEffect();
 protected:
     SkPairPathEffect(SkPathEffect* pe0, SkPathEffect* pe1);
     SkPairPathEffect(SkReadBuffer&);
     virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
     // these are visible to our subclasses
     SkPathEffect* fPE0, *fPE1;
 private:
     typedef SkPathEffect INHERITED;
 };
 /** \class SkComposePathEffect
     This subclass of SkPathEffect composes its two arguments, to create
     a compound pathEffect.
 */
 class SkComposePathEffect : public SkPairPathEffect {
 public:
     /** Construct a pathEffect whose effect is to apply first the inner pathEffect
         and the the outer pathEffect (e.g. outer(inner(path)))
         The reference counts for outer and inner are both incremented in the constructor,
         and decremented in the destructor.
     */
     static SkComposePathEffect* Create(SkPathEffect* outer, SkPathEffect* inner) {
         return SkNEW_ARGS(SkComposePathEffect, (outer, inner));
     }
     virtual bool filterPath(SkPath* dst, const SkPath& src,
                             SkStrokeRec*, const SkRect*) const SK_OVERRIDE;
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkComposePathEffect)
 protected:
     SkComposePathEffect(SkReadBuffer& buffer) : INHERITED(buffer) {}
 #ifdef SK_SUPPORT_LEGACY_PUBLICEFFECTCONSTRUCTORS
 public:
 #endif
     SkComposePathEffect(SkPathEffect* outer, SkPathEffect* inner)
         : INHERITED(outer, inner) {}
 private:
     // illegal
     SkComposePathEffect(const SkComposePathEffect&);
     SkComposePathEffect& operator=(const SkComposePathEffect&);
     typedef SkPairPathEffect INHERITED;
 };
 /** \class SkSumPathEffect
     This subclass of SkPathEffect applies two pathEffects, one after the other.
     Its filterPath() returns true if either of the effects succeeded.
 */
 class SkSumPathEffect : public SkPairPathEffect {
 public:
     /** Construct a pathEffect whose effect is to apply two effects, in sequence.
         (e.g. first(path) + second(path))
         The reference counts for first and second are both incremented in the constructor,
         and decremented in the destructor.
     */
     static SkSumPathEffect* Create(SkPathEffect* first, SkPathEffect* second) {
         return SkNEW_ARGS(SkSumPathEffect, (first, second));
     }
     virtual bool filterPath(SkPath* dst, const SkPath& src,
                             SkStrokeRec*, const SkRect*) const SK_OVERRIDE;
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkSumPathEffect)
 protected:
     SkSumPathEffect(SkReadBuffer& buffer) : INHERITED(buffer) {}
 #ifdef SK_SUPPORT_LEGACY_PUBLICEFFECTCONSTRUCTORS
 public:
 #endif
     SkSumPathEffect(SkPathEffect* first, SkPathEffect* second)
         : INHERITED(first, second) {}
 private:
     // illegal
     SkSumPathEffect(const SkSumPathEffect&);
     SkSumPathEffect& operator=(const SkSumPathEffect&);
     typedef SkPairPathEffect INHERITED;
 };
 #endif

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gfx/skia/trunk/include/core/SkPathEffect.h@129ffea94266 (annotated)

gfx/skia/trunk/include/core/SkPathEffect.h