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/*
* 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 "config.h"
#include "core/animation/animatable/AnimatableLength.h"
#include "platform/CalculationValue.h"
#include "platform/animation/AnimationUtilities.h"
namespace blink {
namespace {
double clampNumber(double value, ValueRange range)
{
if (range == ValueRangeNonNegative)
return std::max(value, 0.0);
ASSERT(range == ValueRangeAll);
return value;
}
} // namespace
AnimatableLength::AnimatableLength(const Length& length, float zoom)
{
ASSERT(zoom);
PixelsAndPercent pixelsAndPercent = length.pixelsAndPercent();
m_pixels = pixelsAndPercent.pixels / zoom;
m_percent = pixelsAndPercent.percent;
m_hasPixels = length.type() != Percent;
m_hasPercent = !length.isFixed();
}
Length AnimatableLength::length(float zoom, ValueRange range) const
{
if (!m_hasPercent)
return Length(clampNumber(m_pixels, range) * zoom, Fixed);
if (!m_hasPixels)
return Length(clampNumber(m_percent, range), Percent);
return Length(CalculationValue::create(PixelsAndPercent(m_pixels * zoom, m_percent), range));
}
PassRefPtrWillBeRawPtr<AnimatableValue> AnimatableLength::interpolateTo(const AnimatableValue* value, double fraction) const
{
const AnimatableLength* length = toAnimatableLength(value);
return create(blend(m_pixels, length->m_pixels, fraction), blend(m_percent, length->m_percent, fraction),
m_hasPixels || length->m_hasPixels, m_hasPercent || length->m_hasPercent);
}
bool AnimatableLength::equalTo(const AnimatableValue* value) const
{
const AnimatableLength* length = toAnimatableLength(value);
return m_pixels == length->m_pixels && m_percent == length->m_percent && m_hasPixels == length->m_hasPixels && m_hasPercent == length->m_hasPercent;
}
} // namespace blink
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