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LibWeb/Painting: Do not paint box outer shadows not visible in viewport
This change separates the box outer shadow metrics calculations into a separate function. This function is then used to obtain the shadow bounding rectangle and skip painting if the entire shadow is outside of the viewport.
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3 changed files with 192 additions and 40 deletions
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@ -328,6 +328,9 @@ CommandResult PaintConicGradient::execute(CommandExecutionState& state) const
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CommandResult PaintOuterBoxShadow::execute(CommandExecutionState& state) const
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{
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auto bounding_rect = get_outer_box_shadow_bounding_rect(outer_box_shadow_params);
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if (state.would_be_fully_clipped_by_painter(bounding_rect))
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return CommandResult::Continue;
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auto& painter = state.painter();
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paint_outer_box_shadow(painter, outer_box_shadow_params);
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return CommandResult::Continue;
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