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comparison: gfx/skia/trunk/include/pathops/SkPathOps.h
gfx/skia/trunk/include/pathops/SkPathOps.h
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- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:66a0d09c16d5 |
|---|---|
| 1 /* | |
| 2 * Copyright 2012 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 */ | |
| 7 #ifndef SkPathOps_DEFINED | |
| 8 #define SkPathOps_DEFINED | |
| 9 | |
| 10 #include "SkPreConfig.h" | |
| 11 | |
| 12 class SkPath; | |
| 13 | |
| 14 // FIXME: move everything below into the SkPath class | |
| 15 /** | |
| 16 * The logical operations that can be performed when combining two paths. | |
| 17 */ | |
| 18 enum SkPathOp { | |
| 19 kDifference_PathOp, //!< subtract the op path from the first path | |
| 20 kIntersect_PathOp, //!< intersect the two paths | |
| 21 kUnion_PathOp, //!< union (inclusive-or) the two paths | |
| 22 kXOR_PathOp, //!< exclusive-or the two paths | |
| 23 kReverseDifference_PathOp, //!< subtract the first path from the op path | |
| 24 }; | |
| 25 | |
| 26 /** Set this path to the result of applying the Op to this path and the | |
| 27 specified path: this = (this op operand). | |
| 28 The resulting path will be constructed from non-overlapping contours. | |
| 29 The curve order is reduced where possible so that cubics may be turned | |
| 30 into quadratics, and quadratics maybe turned into lines. | |
| 31 | |
| 32 Returns true if operation was able to produce a result; | |
| 33 otherwise, result is unmodified. | |
| 34 | |
| 35 @param one The first operand (for difference, the minuend) | |
| 36 @param two The second operand (for difference, the subtrahend) | |
| 37 @param result The product of the operands. The result may be one of the | |
| 38 inputs. | |
| 39 @return True if operation succeeded. | |
| 40 */ | |
| 41 bool SK_API Op(const SkPath& one, const SkPath& two, SkPathOp op, SkPath* result); | |
| 42 | |
| 43 /** Set this path to a set of non-overlapping contours that describe the | |
| 44 same area as the original path. | |
| 45 The curve order is reduced where possible so that cubics may | |
| 46 be turned into quadratics, and quadratics maybe turned into lines. | |
| 47 | |
| 48 Returns true if operation was able to produce a result; | |
| 49 otherwise, result is unmodified. | |
| 50 | |
| 51 @param path The path to simplify. | |
| 52 @param result The simplified path. The result may be the input. | |
| 53 @return True if simplification succeeded. | |
| 54 */ | |
| 55 bool SK_API Simplify(const SkPath& path, SkPath* result); | |
| 56 | |
| 57 #endif |
