blob: e7280ef2eae2a76edef53b944efb0dd7f0321a34 [file] [log] [blame]
/*
* 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