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/*
* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
* (C) 2000 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
* Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
*
* 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.
*
*/
#ifndef ScaleTransformOperation_h
#define ScaleTransformOperation_h
#include "platform/transforms/TransformOperation.h"
namespace blink {
class PLATFORM_EXPORT ScaleTransformOperation final
: public TransformOperation {
public:
static PassRefPtr<ScaleTransformOperation> create(double sx,
double sy,
OperationType type) {
return adoptRef(new ScaleTransformOperation(sx, sy, 1, type));
}
static PassRefPtr<ScaleTransformOperation> create(double sx,
double sy,
double sz,
OperationType type) {
return adoptRef(new ScaleTransformOperation(sx, sy, sz, type));
}
double x() const { return m_x; }
double y() const { return m_y; }
double z() const { return m_z; }
virtual bool canBlendWith(const TransformOperation& other) const;
void apply(TransformationMatrix& transform, const FloatSize&) const override {
transform.scale3d(m_x, m_y, m_z);
}
PassRefPtr<TransformOperation> blend(const TransformOperation* from,
double progress,
bool blendToIdentity = false) override;
static bool isMatchingOperationType(OperationType type) {
return type == Scale || type == ScaleX || type == ScaleY ||
type == ScaleZ || type == Scale3D;
}
private:
OperationType type() const override { return m_type; }
OperationType primitiveType() const final { return Scale3D; }
bool operator==(const TransformOperation& o) const override {
if (!isSameType(o))
return false;
const ScaleTransformOperation* s =
static_cast<const ScaleTransformOperation*>(&o);
return m_x == s->m_x && m_y == s->m_y && m_z == s->m_z;
}
PassRefPtr<TransformOperation> zoom(double factor) final { return this; }
ScaleTransformOperation(double sx, double sy, double sz, OperationType type)
: m_x(sx), m_y(sy), m_z(sz), m_type(type) {
ASSERT(isMatchingOperationType(type));
}
double m_x;
double m_y;
double m_z;
OperationType m_type;
};
DEFINE_TRANSFORM_TYPE_CASTS(ScaleTransformOperation);
} // namespace blink
#endif // ScaleTransformOperation_h
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