diff options
Diffstat (limited to 'include/effects/SkGradientShader.h')
| -rw-r--r-- | include/effects/SkGradientShader.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/include/effects/SkGradientShader.h b/include/effects/SkGradientShader.h index 6b86f441eb..2fcce75c30 100644 --- a/include/effects/SkGradientShader.h +++ b/include/effects/SkGradientShader.h @@ -48,6 +48,28 @@ public: return MakeLinear(pts, colors, pos, count, mode, 0, NULL); } + /** Returns a shader that generates a linear gradient between the two specified points. + <p /> + @param pts The start and end points for the gradient. + @param colors The array[count] of colors, to be distributed between the two points + @param pos May be NULL. array[count] of SkScalars, or NULL, of the relative position of + each corresponding color in the colors array. If this is NULL, + the the colors are distributed evenly between the start and end point. + If this is not null, the values must begin with 0, end with 1.0, and + intermediate values must be strictly increasing. + @param count Must be >=2. The number of colors (and pos if not NULL) entries. + @param mode The tiling mode + */ + static sk_sp<SkShader> MakeLinear(const SkPoint pts[2], + const SkColor4f colors[], sk_sp<SkColorSpace> colorSpace, + const SkScalar pos[], int count, SkShader::TileMode mode, + uint32_t flags, const SkMatrix* localMatrix); + static sk_sp<SkShader> MakeLinear(const SkPoint pts[2], + const SkColor4f colors[], sk_sp<SkColorSpace> colorSpace, + const SkScalar pos[], int count, SkShader::TileMode mode) { + return MakeLinear(pts, colors, std::move(colorSpace), pos, count, mode, 0, NULL); + } + /** Returns a shader that generates a radial gradient given the center and radius. <p /> @param center The center of the circle for this gradient @@ -71,6 +93,29 @@ public: return MakeRadial(center, radius, colors, pos, count, mode, 0, NULL); } + /** Returns a shader that generates a radial gradient given the center and radius. + <p /> + @param center The center of the circle for this gradient + @param radius Must be positive. The radius of the circle for this gradient + @param colors The array[count] of colors, to be distributed between the center and edge of the circle + @param pos May be NULL. The array[count] of SkScalars, or NULL, of the relative position of + each corresponding color in the colors array. If this is NULL, + the the colors are distributed evenly between the center and edge of the circle. + If this is not null, the values must begin with 0, end with 1.0, and + intermediate values must be strictly increasing. + @param count Must be >= 2. The number of colors (and pos if not NULL) entries + @param mode The tiling mode + */ + static sk_sp<SkShader> MakeRadial(const SkPoint& center, SkScalar radius, + const SkColor4f colors[], sk_sp<SkColorSpace> colorSpace, + const SkScalar pos[], int count, SkShader::TileMode mode, + uint32_t flags, const SkMatrix* localMatrix); + static sk_sp<SkShader> MakeRadial(const SkPoint& center, SkScalar radius, + const SkColor4f colors[], sk_sp<SkColorSpace> colorSpace, + const SkScalar pos[], int count, SkShader::TileMode mode) { + return MakeRadial(center, radius, colors, std::move(colorSpace), pos, count, mode, 0, NULL); + } + /** * Returns a shader that generates a conical gradient given two circles, or * returns NULL if the inputs are invalid. The gradient interprets the @@ -90,6 +135,27 @@ public: 0, NULL); } + /** + * Returns a shader that generates a conical gradient given two circles, or + * returns NULL if the inputs are invalid. The gradient interprets the + * two circles according to the following HTML spec. + * http://dev.w3.org/html5/2dcontext/#dom-context-2d-createradialgradient + */ + static sk_sp<SkShader> MakeTwoPointConical(const SkPoint& start, SkScalar startRadius, + const SkPoint& end, SkScalar endRadius, + const SkColor4f colors[], + sk_sp<SkColorSpace> colorSpace, const SkScalar pos[], + int count, SkShader::TileMode mode, + uint32_t flags, const SkMatrix* localMatrix); + static sk_sp<SkShader> MakeTwoPointConical(const SkPoint& start, SkScalar startRadius, + const SkPoint& end, SkScalar endRadius, + const SkColor4f colors[], + sk_sp<SkColorSpace> colorSpace, const SkScalar pos[], + int count, SkShader::TileMode mode) { + return MakeTwoPointConical(start, startRadius, end, endRadius, colors, + std::move(colorSpace), pos, count, mode, 0, NULL); + } + /** Returns a shader that generates a sweep gradient given a center. <p /> @param cx The X coordinate of the center of the sweep @@ -110,6 +176,28 @@ public: return MakeSweep(cx, cy, colors, pos, count, 0, NULL); } + /** Returns a shader that generates a sweep gradient given a center. + <p /> + @param cx The X coordinate of the center of the sweep + @param cx The Y coordinate of the center of the sweep + @param colors The array[count] of colors, to be distributed around the center. + @param pos May be NULL. The array[count] of SkScalars, or NULL, of the relative position of + each corresponding color in the colors array. If this is NULL, + the the colors are distributed evenly between the center and edge of the circle. + If this is not null, the values must begin with 0, end with 1.0, and + intermediate values must be strictly increasing. + @param count Must be >= 2. The number of colors (and pos if not NULL) entries + */ + static sk_sp<SkShader> MakeSweep(SkScalar cx, SkScalar cy, + const SkColor4f colors[], sk_sp<SkColorSpace> colorSpace, + const SkScalar pos[], int count, + uint32_t flags, const SkMatrix* localMatrix); + static sk_sp<SkShader> MakeSweep(SkScalar cx, SkScalar cy, + const SkColor4f colors[], sk_sp<SkColorSpace> colorSpace, + const SkScalar pos[], int count) { + return MakeSweep(cx, cy, colors, std::move(colorSpace), pos, count, 0, NULL); + } + #ifdef SK_SUPPORT_LEGACY_CREATESHADER_PTR static SkShader* CreateLinear(const SkPoint pts[2], const SkColor colors[], const SkScalar pos[], int count, |