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LibWeb: Support rendering background images with 'background-repeat'

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Update the painting of background images for both <body> nodes and other
non-initial nodes. Currently, only the following values are supported:
    repeat, repeat-x, repeat-y, no-repeat

This also doesn't support the two-value syntax which allows for setting
horizontal and vertical repetition separately.
This commit is contained in:
Timothy Flynn 2021-04-02 18:19:33 -04:00 • committed by Andreas Kling
parent bd5a91269f
commit fa9ba8bce5
4 changed files with 55 additions and 6 deletions
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17
Userland/Libraries/LibWeb/Layout/Box.cpp
View file

@ -49,6 +49,23 @@ void Box::paint(PaintContext& context, PaintPhase phase)
auto background_rect = enclosing_int_rect(padded_rect);
context.painter().fill_rect(background_rect, computed_values().background_color());
if (background_image() && background_image()->bitmap()) {
switch (computed_values().background_repeat()) {
case CSS::Repeat::Repeat:
// The background rect is already sized to align with 'repeat'.
break;
case CSS::Repeat::RepeatX:
background_rect.set_height(background_image()->bitmap()->height());
break;
case CSS::Repeat::RepeatY:
background_rect.set_width(background_image()->bitmap()->width());
break;
case CSS::Repeat::NoRepeat:
default: // FIXME: Support 'round' and 'square'
background_rect.set_width(background_image()->bitmap()->width());
background_rect.set_height(background_image()->bitmap()->height());
break;
}
context.painter().blit_tiled(background_rect, *background_image()->bitmap(), background_image()->bitmap()->rect());
}
}