| /* |
| * Copyright (C) 2006 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef SkBlurMaskFilter_DEFINED |
| #define SkBlurMaskFilter_DEFINED |
| |
| // we include this since our callers will need to at least be able to ref/unref |
| #include "SkMaskFilter.h" |
| #include "SkScalar.h" |
| |
| class SkBlurMaskFilter { |
| public: |
| enum BlurStyle { |
| kNormal_BlurStyle, //!< fuzzy inside and outside |
| kSolid_BlurStyle, //!< solid inside, fuzzy outside |
| kOuter_BlurStyle, //!< nothing inside, fuzzy outside |
| kInner_BlurStyle, //!< fuzzy inside, nothing outside |
| |
| kBlurStyleCount |
| }; |
| |
| /** Create a blur maskfilter. |
| @param radius The radius to extend the blur from the original mask. Must be > 0. |
| @param style The BlurStyle to use |
| @return The new blur maskfilter |
| */ |
| static SkMaskFilter* Create(SkScalar radius, BlurStyle style); |
| |
| /** Create an emboss maskfilter |
| @param direction array of 3 scalars [x, y, z] specifying the direction of the light source |
| @param ambient 0...1 amount of ambient light |
| @param specular coefficient for specular highlights (e.g. 8) |
| @param blurRadius amount to blur before applying lighting (e.g. 3) |
| @return the emboss maskfilter |
| */ |
| static SkMaskFilter* CreateEmboss( const SkScalar direction[3], |
| SkScalar ambient, SkScalar specular, |
| SkScalar blurRadius); |
| |
| private: |
| SkBlurMaskFilter(); // can't be instantiated |
| }; |
| |
| #endif |
| |