| /* |
| * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org) |
| * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #include "third_party/blink/renderer/platform/transforms/translate_transform_operation.h" |
| |
| #include "third_party/blink/renderer/platform/geometry/blend.h" |
| |
| namespace blink { |
| |
| scoped_refptr<TransformOperation> TranslateTransformOperation::Blend( |
| const TransformOperation* from, |
| double progress, |
| bool blend_to_identity) { |
| if (from && !from->CanBlendWith(*this)) |
| return this; |
| |
| const Length zero_length = Length::Fixed(0); |
| if (blend_to_identity) { |
| return TranslateTransformOperation::Create( |
| zero_length.Blend(x_, progress, kValueRangeAll), |
| zero_length.Blend(y_, progress, kValueRangeAll), |
| blink::Blend(z_, 0., progress), type_); |
| } |
| |
| const auto* from_op = ToTranslateTransformOperation(from); |
| const Length& from_x = from_op ? from_op->x_ : zero_length; |
| const Length& from_y = from_op ? from_op->y_ : zero_length; |
| double from_z = from_op ? from_op->z_ : 0; |
| return TranslateTransformOperation::Create( |
| x_.Blend(from_x, progress, kValueRangeAll), |
| y_.Blend(from_y, progress, kValueRangeAll), |
| blink::Blend(from_z, z_, progress), type_); |
| } |
| |
| bool TranslateTransformOperation::CanBlendWith( |
| const TransformOperation& other) const { |
| return other.GetType() == kTranslate || other.GetType() == kTranslateX || |
| other.GetType() == kTranslateY || other.GetType() == kTranslateZ || |
| other.GetType() == kTranslate3D; |
| } |
| |
| scoped_refptr<TranslateTransformOperation> |
| TranslateTransformOperation::ZoomTranslate(double factor) { |
| return Create(x_.Zoom(factor), y_.Zoom(factor), z_ * factor, type_); |
| } |
| |
| } // namespace blink |