| /* |
| * Copyright (C) 2012 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef WebTransformOperations_h |
| #define WebTransformOperations_h |
| |
| class SkMatrix44; |
| |
| #define WEB_TRANSFORM_OPERATIONS_IS_VIRTUAL 1 |
| |
| namespace WebKit { |
| |
| class WebTransformOperations { |
| public: |
| virtual ~WebTransformOperations() { } |
| |
| // Returns true if these operations can be blended. It will only return |
| // false if we must resort to matrix interpolation, and matrix interpolation |
| // fails (this can happen if either matrix cannot be decomposed). |
| virtual bool canBlendWith(const WebTransformOperations& other) const = 0; |
| |
| virtual void appendTranslate(double x, double y, double z) = 0; |
| virtual void appendRotate(double x, double y, double z, double degrees) = 0; |
| virtual void appendScale(double x, double y, double z) = 0; |
| virtual void appendSkew(double x, double y) = 0; |
| virtual void appendPerspective(double depth) = 0; |
| virtual void appendMatrix(const SkMatrix44&) = 0; |
| virtual void appendIdentity() = 0; |
| |
| virtual bool isIdentity() const = 0; |
| }; |
| |
| } // namespace WebKit |
| |
| #endif // WebTransformOperations_h |
| |