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LibWeb/Canvas: Support globalCompositionOperation

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Canvas now supports compositing and various blending modes via the
`globalCompositeOperation` attribute.
This commit is contained in:
Glenn Skrzypczak 2025-01-28 18:19:30 +01:00 • committed by Sam Atkins
commit 8575bddfe6
Notes: github-actions[bot] 2025-02-05 11:28:07 +00:00
16 changed files with 283 additions and 32 deletions
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2
Libraries/LibWeb/HTML/Canvas/CanvasState.h
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@ -11,6 +11,7 @@
#include <AK/Vector.h>
#include <LibGfx/AffineTransform.h>
#include <LibGfx/Color.h>
#include <LibGfx/CompositingAndBlendingOperator.h>
#include <LibGfx/Filter.h>
#include <LibGfx/Font/Font.h>
#include <LibGfx/PaintStyle.h>
@ -96,6 +97,7 @@ public:
bool image_smoothing_enabled { true };
Bindings::ImageSmoothingQuality image_smoothing_quality { Bindings::ImageSmoothingQuality::Low };
float global_alpha = { 1 };
Gfx::CompositingAndBlendingOperator current_compositing_and_blending_operator = Gfx::CompositingAndBlendingOperator::SourceOver;
RefPtr<CSS::CSSStyleValue> font_style_value { nullptr };
RefPtr<Gfx::Font const> current_font { nullptr };
Bindings::CanvasTextAlign text_align { Bindings::CanvasTextAlign::Start };