| /* |
| * Copyright (C) 2013 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT |
| * OWNER OR 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. |
| */ |
| |
| #include "third_party/blink/renderer/platform/transforms/interpolated_transform_operation.h" |
| |
| #include "third_party/blink/renderer/platform/transforms/identity_transform_operation.h" |
| |
| namespace blink { |
| |
| bool InterpolatedTransformOperation::operator==( |
| const TransformOperation& o) const { |
| if (!IsSameType(o)) |
| return false; |
| const InterpolatedTransformOperation* t = |
| static_cast<const InterpolatedTransformOperation*>(&o); |
| return progress == t->progress && from == t->from && to == t->to; |
| } |
| |
| void InterpolatedTransformOperation::Apply( |
| TransformationMatrix& transform, |
| const FloatSize& border_box_size) const { |
| TransformationMatrix from_transform; |
| TransformationMatrix to_transform; |
| from.ApplyRemaining(border_box_size, starting_index, from_transform); |
| to.ApplyRemaining(border_box_size, starting_index, to_transform); |
| |
| to_transform.Blend(from_transform, progress); |
| transform.Multiply(to_transform); |
| } |
| |
| scoped_refptr<TransformOperation> InterpolatedTransformOperation::Blend( |
| const TransformOperation* from, |
| double progress, |
| bool blend_to_identity) { |
| if (from && !from->IsSameType(*this)) |
| return this; |
| |
| TransformOperations this_operations; |
| this_operations.Operations().push_back(this); |
| TransformOperations from_operations; |
| if (blend_to_identity) |
| from_operations.Operations().push_back( |
| IdentityTransformOperation::Create()); |
| else |
| from_operations.Operations().push_back( |
| const_cast<TransformOperation*>(from)); |
| return InterpolatedTransformOperation::Create(this_operations, |
| from_operations, 0, progress); |
| } |
| |
| } // namespace blink |