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/*
* Copyright (C) 2023 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 "SliderTrackPart.h"
#include "ControlFactory.h"
#include "GraphicsContext.h"
namespace WebCore {
Ref<SliderTrackPart> SliderTrackPart::create(StyleAppearance type)
{
return adoptRef(*new SliderTrackPart(type, { }, { }, { }, 0));
}
Ref<SliderTrackPart> SliderTrackPart::create(StyleAppearance type, const IntSize& thumbSize, const IntRect& trackBounds, Vector<double>&& tickRatios, double thumbPosition)
{
return adoptRef(*new SliderTrackPart(type, thumbSize, trackBounds, WTFMove(tickRatios), thumbPosition));
}
SliderTrackPart::SliderTrackPart(StyleAppearance type, const IntSize& thumbSize, const IntRect& trackBounds, Vector<double>&& tickRatios, double thumbPosition)
: ControlPart(type)
, m_thumbSize(thumbSize)
, m_trackBounds(trackBounds)
, m_tickRatios(WTFMove(tickRatios))
, m_thumbPosition(thumbPosition)
{
ASSERT(type == StyleAppearance::SliderHorizontal || type == StyleAppearance::SliderVertical);
}
void SliderTrackPart::drawTicks(GraphicsContext& context, const FloatRect& rect, const ControlStyle& style) const
{
if (m_tickRatios.isEmpty())
return;
static constexpr FloatSize sliderTickSize = { 1, 3 };
static constexpr int sliderTickOffsetFromTrackCenter = -9;
bool isHorizontal = type() == StyleAppearance::SliderHorizontal;
auto trackBounds = m_trackBounds;
trackBounds.moveBy(IntPoint(rect.location()));
auto tickSize = isHorizontal? sliderTickSize : sliderTickSize.transposedSize();
tickSize.scale(style.zoomFactor);
FloatPoint tickLocation;
float tickRegionMargin = 0;
float tickRegionWidth = 0;
float offsetFromTrackCenter = sliderTickOffsetFromTrackCenter * style.zoomFactor;
if (isHorizontal) {
tickLocation = { 0, rect.center().y() + offsetFromTrackCenter };
tickRegionMargin = trackBounds.x() + (m_thumbSize.width() - tickSize.width()) / 2.0;
tickRegionWidth = trackBounds.width() - m_thumbSize.width();
} else {
tickLocation = { rect.center().x() + offsetFromTrackCenter, 0 };
tickRegionMargin = trackBounds.y() + (m_thumbSize.height() - tickSize.height()) / 2.0;
tickRegionWidth = trackBounds.height() - m_thumbSize.height();
}
auto tickRect = FloatRect { tickLocation, tickSize };
GraphicsContextStateSaver stateSaver(context);
context.setFillColor(style.textColor);
bool isVerticalWritingMode = style.states.contains(ControlStyle::State::VerticalWritingMode);
bool isInlineFlippedWritingMode = style.states.contains(ControlStyle::State::InlineFlippedWritingMode);
bool isInlineFlipped = (!isHorizontal && !isVerticalWritingMode) || isInlineFlippedWritingMode;
for (auto tickRatio : m_tickRatios) {
double value = isInlineFlipped ? 1.0 - tickRatio : tickRatio;
double tickPosition = round(tickRegionMargin + tickRegionWidth * value);
if (isHorizontal)
tickRect.setX(tickPosition);
else
tickRect.setY(tickPosition);
context.fillRect(tickRect);
}
}
std::unique_ptr<PlatformControl> SliderTrackPart::createPlatformControl()
{
return controlFactory().createPlatformSliderTrack(*this);
}
} // namespace WebCore
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