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LibWeb+WebContent: Forbid access to underlying type of CSSPixels

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Although DistinctNumeric, which is supposed to abstract the underlying
type, was used to represent CSSPixels, we have a whole bunch of places
in the layout code that assume CSSPixels::value() returns a
floating-point type. This assumption makes it difficult to replace the
underlying type in CSSPixels with a non-floating type.

To make it easier to transition CSSPixels to fixed-point math, one step
we can take is to prevent access to the underlying type using value()
and instead use explicit conversions with the to_float(), to_double(),
and to_int() methods.
This commit is contained in:
Aliaksandr Kalenik 2023-06-12 21:37:35 +03:00 • committed by Andreas Kling
parent 5a54c686a7
commit 147c3b3d97
43 changed files with 340 additions and 220 deletions
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38
Userland/Libraries/LibWeb/Painting/PaintContext.cpp
View file

@ -47,68 +47,68 @@ CSSPixelRect PaintContext::css_viewport_rect() const
DevicePixels PaintContext::rounded_device_pixels(CSSPixels css_pixels) const
{
return roundf(css_pixels.value() * m_device_pixels_per_css_pixel);
return roundf(css_pixels.to_double() * m_device_pixels_per_css_pixel);
}
DevicePixels PaintContext::enclosing_device_pixels(CSSPixels css_pixels) const
{
return ceilf(css_pixels.value() * m_device_pixels_per_css_pixel);
return ceilf(css_pixels.to_double() * m_device_pixels_per_css_pixel);
}
DevicePixels PaintContext::floored_device_pixels(CSSPixels css_pixels) const
{
return floorf(css_pixels.value() * m_device_pixels_per_css_pixel);
return floorf(css_pixels.to_double() * m_device_pixels_per_css_pixel);
}
DevicePixelPoint PaintContext::rounded_device_point(CSSPixelPoint point) const
{
return {
roundf(point.x().value() * m_device_pixels_per_css_pixel),
roundf(point.y().value() * m_device_pixels_per_css_pixel)
roundf(point.x().to_double() * m_device_pixels_per_css_pixel),
roundf(point.y().to_double() * m_device_pixels_per_css_pixel)
};
}
DevicePixelPoint PaintContext::floored_device_point(CSSPixelPoint point) const
{
return {
floorf(point.x().value() * m_device_pixels_per_css_pixel),
floorf(point.y().value() * m_device_pixels_per_css_pixel)
floorf(point.x().to_double() * m_device_pixels_per_css_pixel),
floorf(point.y().to_double() * m_device_pixels_per_css_pixel)
};
}
DevicePixelRect PaintContext::enclosing_device_rect(CSSPixelRect rect) const
{
return {
floorf(rect.x().value() * m_device_pixels_per_css_pixel),
floorf(rect.y().value() * m_device_pixels_per_css_pixel),
ceilf(rect.width().value() * m_device_pixels_per_css_pixel),
ceilf(rect.height().value() * m_device_pixels_per_css_pixel)
floorf(rect.x().to_double() * m_device_pixels_per_css_pixel),
floorf(rect.y().to_double() * m_device_pixels_per_css_pixel),
ceilf(rect.width().to_double() * m_device_pixels_per_css_pixel),
ceilf(rect.height().to_double() * m_device_pixels_per_css_pixel)
};
}
DevicePixelRect PaintContext::rounded_device_rect(CSSPixelRect rect) const
{
return {
roundf(rect.x().value() * m_device_pixels_per_css_pixel),
roundf(rect.y().value() * m_device_pixels_per_css_pixel),
roundf(rect.width().value() * m_device_pixels_per_css_pixel),
roundf(rect.height().value() * m_device_pixels_per_css_pixel)
roundf(rect.x().to_double() * m_device_pixels_per_css_pixel),
roundf(rect.y().to_double() * m_device_pixels_per_css_pixel),
roundf(rect.width().to_double() * m_device_pixels_per_css_pixel),
roundf(rect.height().to_double() * m_device_pixels_per_css_pixel)
};
}
DevicePixelSize PaintContext::enclosing_device_size(CSSPixelSize size) const
{
return {
ceilf(size.width().value() * m_device_pixels_per_css_pixel),
ceilf(size.height().value() * m_device_pixels_per_css_pixel)
ceilf(size.width().to_double() * m_device_pixels_per_css_pixel),
ceilf(size.height().to_double() * m_device_pixels_per_css_pixel)
};
}
DevicePixelSize PaintContext::rounded_device_size(CSSPixelSize size) const
{
return {
roundf(size.width().value() * m_device_pixels_per_css_pixel),
roundf(size.height().value() * m_device_pixels_per_css_pixel)
roundf(size.width().to_double() * m_device_pixels_per_css_pixel),
roundf(size.height().to_double() * m_device_pixels_per_css_pixel)
};
}