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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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11
Libraries/LibGfx/PainterSkia.h
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@ -8,6 +8,7 @@
#include <AK/NonnullOwnPtr.h>
#include <LibGfx/Bitmap.h>
#include <LibGfx/CompositingAndBlendingOperator.h>
#include <LibGfx/Painter.h>
#include <LibGfx/PaintingSurface.h>
@ -20,13 +21,13 @@ public:
virtual void clear_rect(Gfx::FloatRect const&, Color) override;
virtual void fill_rect(Gfx::FloatRect const&, Color) override;
virtual void draw_bitmap(Gfx::FloatRect const& dst_rect, Gfx::ImmutableBitmap const& src_bitmap, Gfx::IntRect const& src_rect, Gfx::ScalingMode, ReadonlySpan<Gfx::Filter>, float global_alpha) override;
virtual void draw_bitmap(Gfx::FloatRect const& dst_rect, Gfx::ImmutableBitmap const& src_bitmap, Gfx::IntRect const& src_rect, Gfx::ScalingMode, ReadonlySpan<Gfx::Filter>, float global_alpha, Gfx::CompositingAndBlendingOperator compositing_and_blending_operator) override;
virtual void stroke_path(Gfx::Path const&, Gfx::Color, float thickness) override;
virtual void stroke_path(Gfx::Path const&, Gfx::Color, float thickness, float blur_radius) override;
virtual void stroke_path(Gfx::Path const&, Gfx::PaintStyle const&, ReadonlySpan<Gfx::Filter>, float thickness, float global_alpha) override;
virtual void stroke_path(Gfx::Path const&, Gfx::Color, float thickness, float blur_radius, Gfx::CompositingAndBlendingOperator compositing_and_blending_operator) override;
virtual void stroke_path(Gfx::Path const&, Gfx::PaintStyle const&, ReadonlySpan<Gfx::Filter>, float thickness, float global_alpha, Gfx::CompositingAndBlendingOperator compositing_and_blending_operator) override;
virtual void fill_path(Gfx::Path const&, Gfx::Color, Gfx::WindingRule) override;
virtual void fill_path(Gfx::Path const&, Gfx::Color, Gfx::WindingRule, float blur_radius) override;
virtual void fill_path(Gfx::Path const&, Gfx::PaintStyle const&, ReadonlySpan<Gfx::Filter>, float global_alpha, Gfx::WindingRule) override;
virtual void fill_path(Gfx::Path const&, Gfx::Color, Gfx::WindingRule, float blur_radius, Gfx::CompositingAndBlendingOperator compositing_and_blending_operator) override;
virtual void fill_path(Gfx::Path const&, Gfx::PaintStyle const&, ReadonlySpan<Gfx::Filter>, float global_alpha, Gfx::CompositingAndBlendingOperator compositing_and_blending_operator, Gfx::WindingRule) override;
virtual void set_transform(Gfx::AffineTransform const&) override;
virtual void save() override;
virtual void restore() override;