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62 lines
2.4 KiB
C++
62 lines
2.4 KiB
C++
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/*
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* Copyright (C) 2010 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "flutter/sky/engine/platform/graphics/ImageOrientation.h"
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#include "flutter/sky/engine/platform/transforms/AffineTransform.h"
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namespace blink {
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AffineTransform ImageOrientation::transformFromDefault(const FloatSize& drawnSize) const
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{
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float w = drawnSize.width();
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float h = drawnSize.height();
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switch (m_orientation) {
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case OriginTopLeft:
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return AffineTransform();
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case OriginTopRight:
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return AffineTransform(-1, 0, 0, 1, w, 0);
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case OriginBottomRight:
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return AffineTransform(-1, 0, 0, -1, w, h);
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case OriginBottomLeft:
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return AffineTransform( 1, 0, 0, -1, 0, h);
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case OriginLeftTop:
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return AffineTransform( 0, 1, 1, 0, 0, 0);
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case OriginRightTop:
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return AffineTransform( 0, 1, -1, 0, w, 0);
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case OriginRightBottom:
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return AffineTransform( 0, -1, -1, 0, w, h);
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case OriginLeftBottom:
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return AffineTransform( 0, -1, 1, 0, 0, h);
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}
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ASSERT_NOT_REACHED();
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return AffineTransform();
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}
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} // namespace blink
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