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LibWeb: Implement the canvas gradients

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This gets:

- CanvasRenderingContext2D.createLinearGradient()
- CanvasRenderingContext2D.createConicGradient()
- CanvasRenderingContext2D.createRadialGradient()

Actually working as fill styles for paths and rectangles :^)
Getting them working for strokes is left as an exercise is
left as an exercise for the reader.
This commit is contained in:
MacDue
2023-01-19 19:10:00 +01:00
committed by Andreas Kling
parent 24cb57ac88
commit 27a3e11f02
4 changed files with 26 additions and 38 deletions
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10
Userland/Libraries/LibWeb/HTML/Canvas/CanvasState.cpp
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@@ -42,7 +42,15 @@ bool CanvasState::is_context_lost()
NonnullRefPtr<Gfx::PaintStyle> CanvasState::FillOrStrokeStyle::to_gfx_paint_style()
{
VERIFY_NOT_REACHED();
return m_fill_or_stoke_style.visit(
[&](Gfx::Color color) -> NonnullRefPtr<Gfx::PaintStyle> {
if (!m_color_paint_style)
m_color_paint_style = Gfx::SolidColorPaintStyle::create(color);
return m_color_paint_style.release_nonnull();
},
[&](JS::Handle<CanvasGradient> gradient) {
return gradient->to_gfx_paint_style();
});
}
Gfx::Color CanvasState::FillOrStrokeStyle::to_color_but_fixme_should_accept_any_paint_style() const