diff options
Diffstat (limited to 'include/core/SkXfermode.h')
| -rw-r--r-- | include/core/SkXfermode.h | 47 |
1 files changed, 29 insertions, 18 deletions
diff --git a/include/core/SkXfermode.h b/include/core/SkXfermode.h index 6ab9d6d..0d1c207 100644 --- a/include/core/SkXfermode.h +++ b/include/core/SkXfermode.h @@ -1,19 +1,12 @@ + /* - * 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 + * Copyright 2006 The Android Open Source Project * - * 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. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. */ + #ifndef SkXfermode_DEFINED #define SkXfermode_DEFINED @@ -138,6 +131,18 @@ public: */ static bool AsMode(SkXfermode*, Mode* mode); + /** + * Returns true if the xfermode claims to be the specified Mode. This works + * correctly even if the xfermode is NULL (which equates to kSrcOver.) Thus + * you can say this without checking for a null... + * + * If (SkXfermode::IsMode(paint.getXfermode(), + * SkXfermode::kDstOver_Mode)) { + * ... + * } + */ + static bool IsMode(SkXfermode* xfer, Mode mode); + /** Return an SkXfermode object for the specified mode. */ static SkXfermode* Create(Mode mode); @@ -167,6 +172,7 @@ public: return AsMode(xfer, mode); } + SK_DECLARE_FLATTENABLE_REGISTRAR() protected: SkXfermode(SkFlattenableReadBuffer& rb) : SkFlattenable(rb) {} @@ -200,21 +206,26 @@ public: // overrides from SkXfermode virtual void xfer32(SkPMColor dst[], const SkPMColor src[], int count, - const SkAlpha aa[]); + const SkAlpha aa[]) SK_OVERRIDE; virtual void xfer16(uint16_t dst[], const SkPMColor src[], int count, - const SkAlpha aa[]); + const SkAlpha aa[]) SK_OVERRIDE; virtual void xfer4444(uint16_t dst[], const SkPMColor src[], int count, - const SkAlpha aa[]); + const SkAlpha aa[]) SK_OVERRIDE; virtual void xferA8(SkAlpha dst[], const SkPMColor src[], int count, - const SkAlpha aa[]); + const SkAlpha aa[]) SK_OVERRIDE; // overrides from SkFlattenable - virtual Factory getFactory() { return CreateProc; } - virtual void flatten(SkFlattenableWriteBuffer&); + virtual Factory getFactory() SK_OVERRIDE { return CreateProc; } + virtual void flatten(SkFlattenableWriteBuffer&) SK_OVERRIDE; protected: SkProcXfermode(SkFlattenableReadBuffer&); + // allow subclasses to update this after we unflatten + void setProc(SkXfermodeProc proc) { + fProc = proc; + } + private: SkXfermodeProc fProc; |