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109 lines
4.0 KiB
C++
109 lines
4.0 KiB
C++
/*
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* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
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* (C) 2000 Antti Koivisto (koivisto@kde.org)
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* (C) 2000 Dirk Mueller (mueller@kde.org)
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* Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
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* Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef SKY_ENGINE_PLATFORM_TRANSFORMS_TRANSLATETRANSFORMOPERATION_H_
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#define SKY_ENGINE_PLATFORM_TRANSFORMS_TRANSLATETRANSFORMOPERATION_H_
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#include "flutter/sky/engine/platform/Length.h"
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#include "flutter/sky/engine/platform/LengthFunctions.h"
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#include "flutter/sky/engine/platform/transforms/TransformOperation.h"
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namespace blink {
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class PLATFORM_EXPORT TranslateTransformOperation : public TransformOperation {
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public:
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static PassRefPtr<TranslateTransformOperation> create(const Length& tx,
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const Length& ty,
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OperationType type) {
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return adoptRef(new TranslateTransformOperation(tx, ty, 0, type));
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}
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static PassRefPtr<TranslateTransformOperation> create(const Length& tx,
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const Length& ty,
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double tz,
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OperationType type) {
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return adoptRef(new TranslateTransformOperation(tx, ty, tz, type));
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}
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virtual bool canBlendWith(const TransformOperation& other) const;
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double x(const FloatSize& borderBoxSize) const {
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return floatValueForLength(m_x, borderBoxSize.width());
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}
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double y(const FloatSize& borderBoxSize) const {
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return floatValueForLength(m_y, borderBoxSize.height());
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}
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Length x() const { return m_x; }
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Length y() const { return m_y; }
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double z() const { return m_z; }
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private:
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virtual bool isIdentity() const override {
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return !floatValueForLength(m_x, 1) && !floatValueForLength(m_y, 1) && !m_z;
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}
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virtual OperationType type() const override { return m_type; }
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virtual bool operator==(const TransformOperation& o) const override {
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if (!isSameType(o))
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return false;
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const TranslateTransformOperation* t =
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static_cast<const TranslateTransformOperation*>(&o);
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return m_x == t->m_x && m_y == t->m_y && m_z == t->m_z;
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}
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virtual void apply(TransformationMatrix& transform,
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const FloatSize& borderBoxSize) const override {
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transform.translate3d(x(borderBoxSize), y(borderBoxSize), z());
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}
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virtual PassRefPtr<TransformOperation> blend(
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const TransformOperation* from,
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double progress,
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bool blendToIdentity = false) override;
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virtual bool dependsOnBoxSize() const override {
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return m_x.isPercent() || m_y.isPercent();
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}
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TranslateTransformOperation(const Length& tx,
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const Length& ty,
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double tz,
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OperationType type)
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: m_x(tx), m_y(ty), m_z(tz), m_type(type) {
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ASSERT(type == TranslateX || type == TranslateY || type == TranslateZ ||
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type == Translate || type == Translate3D);
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}
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Length m_x;
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Length m_y;
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double m_z;
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OperationType m_type;
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};
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} // namespace blink
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#endif // SKY_ENGINE_PLATFORM_TRANSFORMS_TRANSLATETRANSFORMOPERATION_H_
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