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PaintContext.cpp
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PaintContext.cpp
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/*
* Copyright (c) 2018-2022, Andreas Kling <[email protected]>
* Copyright (c) 2022, Sam Atkins <[email protected]>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Painting/PaintContext.h>
namespace Web {
PaintContext::PaintContext(Painting::RecordingPainter& painter, Palette const& palette, double device_pixels_per_css_pixel)
: m_painter(painter)
, m_palette(palette)
, m_device_pixels_per_css_pixel(device_pixels_per_css_pixel)
{
}
CSSPixelRect PaintContext::css_viewport_rect() const
{
return {
m_device_viewport_rect.x().value() / m_device_pixels_per_css_pixel,
m_device_viewport_rect.y().value() / m_device_pixels_per_css_pixel,
m_device_viewport_rect.width().value() / m_device_pixels_per_css_pixel,
m_device_viewport_rect.height().value() / m_device_pixels_per_css_pixel
};
}
DevicePixels PaintContext::rounded_device_pixels(CSSPixels css_pixels) const
{
return round(css_pixels.to_double() * m_device_pixels_per_css_pixel);
}
DevicePixels PaintContext::enclosing_device_pixels(CSSPixels css_pixels) const
{
return ceil(css_pixels.to_double() * m_device_pixels_per_css_pixel);
}
DevicePixels PaintContext::floored_device_pixels(CSSPixels css_pixels) const
{
return floor(css_pixels.to_double() * m_device_pixels_per_css_pixel);
}
DevicePixelPoint PaintContext::rounded_device_point(CSSPixelPoint point) const
{
return {
round(point.x().to_double() * m_device_pixels_per_css_pixel),
round(point.y().to_double() * m_device_pixels_per_css_pixel)
};
}
DevicePixelPoint PaintContext::floored_device_point(CSSPixelPoint point) const
{
return {
floor(point.x().to_double() * m_device_pixels_per_css_pixel),
floor(point.y().to_double() * m_device_pixels_per_css_pixel)
};
}
DevicePixelRect PaintContext::enclosing_device_rect(CSSPixelRect rect) const
{
return {
floor(rect.x().to_double() * m_device_pixels_per_css_pixel),
floor(rect.y().to_double() * m_device_pixels_per_css_pixel),
ceil(rect.width().to_double() * m_device_pixels_per_css_pixel),
ceil(rect.height().to_double() * m_device_pixels_per_css_pixel)
};
}
DevicePixelRect PaintContext::rounded_device_rect(CSSPixelRect rect) const
{
return {
round(rect.x().to_double() * m_device_pixels_per_css_pixel),
round(rect.y().to_double() * m_device_pixels_per_css_pixel),
round(rect.width().to_double() * m_device_pixels_per_css_pixel),
round(rect.height().to_double() * m_device_pixels_per_css_pixel)
};
}
DevicePixelSize PaintContext::enclosing_device_size(CSSPixelSize size) const
{
return {
ceil(size.width().to_double() * m_device_pixels_per_css_pixel),
ceil(size.height().to_double() * m_device_pixels_per_css_pixel)
};
}
DevicePixelSize PaintContext::rounded_device_size(CSSPixelSize size) const
{
return {
round(size.width().to_double() * m_device_pixels_per_css_pixel),
round(size.height().to_double() * m_device_pixels_per_css_pixel)
};
}
CSSPixels PaintContext::scale_to_css_pixels(DevicePixels device_pixels) const
{
return CSSPixels::nearest_value_for(device_pixels.value() / m_device_pixels_per_css_pixel);
}
CSSPixelPoint PaintContext::scale_to_css_point(DevicePixelPoint point) const
{
return {
scale_to_css_pixels(point.x()),
scale_to_css_pixels(point.y())
};
}
CSSPixelSize PaintContext::scale_to_css_size(DevicePixelSize size) const
{
return {
scale_to_css_pixels(size.width()),
scale_to_css_pixels(size.height())
};
}
CSSPixelRect PaintContext::scale_to_css_rect(DevicePixelRect rect) const
{
return {
scale_to_css_point(rect.location()),
scale_to_css_size(rect.size())
};
}
}