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LibWeb: Convert images to common AbstractImageStyleValue base

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This commit moves both the ImageStyleValue and LinearGradientStyleValue
to a common base class of AbstractImageStyleValue. This abstracts
getting the natural_width/height, loading/resolving, and painting
the image.

Now for 'free' you get:

 - Linear gradients working with the various background sizing/repeat
   properties.
 - Linear gradients working as list-markers :^) -- best feature ever!

P.s. This commit is a little large as it's tricky to make this change
incrementally without breaking things.
This commit is contained in:
MacDue 2022-07-31 01:11:59 +01:00 • committed by Andreas Kling
parent 264543b90a
commit 6a6475673f
13 changed files with 140 additions and 70 deletions
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3
Userland/Libraries/LibWeb/Painting/GradientPainting.h
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@ -9,7 +9,6 @@
#include <AK/Span.h>
#include <AK/Vector.h>
#include <LibGfx/Color.h>
#include <LibWeb/CSS/StyleValue.h>
#include <LibWeb/Forward.h>
#include <LibWeb/Painting/PaintContext.h>
@ -27,7 +26,7 @@ struct LinearGradientData {
ColorStopList color_stops;
};
LinearGradientData resolve_linear_gradient_data(Layout::Node const&, Gfx::FloatRect const&, CSS::LinearGradientStyleValue const&);
LinearGradientData resolve_linear_gradient_data(Layout::Node const&, Gfx::FloatSize const&, CSS::LinearGradientStyleValue const&);
void paint_linear_gradient(PaintContext&, Gfx::IntRect const&, LinearGradientData const&);