| /* |
| * Copyright (C) 2011 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 SkDrawFilter_DEFINED |
| #define SkDrawFilter_DEFINED |
| |
| #include "SkRefCnt.h" |
| |
| class SkCanvas; |
| class SkPaint; |
| |
| /** |
| * Right before something is being draw, filter() is called with the |
| * paint. The filter may modify the paint as it wishes, which will then be |
| * used for the actual drawing. Note: this modification only lasts for the |
| * current draw, as a temporary copy of the paint is used. |
| */ |
| class SkDrawFilter : public SkRefCnt { |
| public: |
| enum Type { |
| kPaint_Type, |
| kPoint_Type, |
| kLine_Type, |
| kBitmap_Type, |
| kRect_Type, |
| kPath_Type, |
| kText_Type |
| }; |
| |
| /** |
| * Called with the paint that will be used to draw the specified type. |
| * The implementation may modify the paint as they wish. |
| */ |
| virtual void filter(SkPaint*, Type) = 0; |
| }; |
| |
| #endif |