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c4ce797366
A display list should not contain coordinates shifted by scroll offset. Instead, "scroll frame id" needs to be used. In the future it's going to allow us reuse a display list in cases when only scroll offsets need to be updated.
48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
/*
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* Copyright (c) 2018-2022, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/Layout/ImageBox.h>
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#include <LibWeb/Painting/SVGSVGPaintable.h>
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namespace Web::Painting {
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JS_DEFINE_ALLOCATOR(SVGSVGPaintable);
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JS::NonnullGCPtr<SVGSVGPaintable> SVGSVGPaintable::create(Layout::SVGSVGBox const& layout_box)
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{
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return layout_box.heap().allocate_without_realm<SVGSVGPaintable>(layout_box);
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}
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SVGSVGPaintable::SVGSVGPaintable(Layout::SVGSVGBox const& layout_box)
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: PaintableBox(layout_box)
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{
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}
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Layout::SVGSVGBox const& SVGSVGPaintable::layout_box() const
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{
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return static_cast<Layout::SVGSVGBox const&>(layout_node());
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}
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void SVGSVGPaintable::before_children_paint(PaintContext& context, PaintPhase phase) const
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{
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PaintableBox::before_children_paint(context, phase);
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if (phase != PaintPhase::Foreground)
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return;
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context.display_list_recorder().save();
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auto clip_rect = absolute_rect();
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context.display_list_recorder().set_scroll_frame_id(scroll_frame_id());
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context.display_list_recorder().add_clip_rect(context.enclosing_device_rect(clip_rect).to_type<int>());
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}
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void SVGSVGPaintable::after_children_paint(PaintContext& context, PaintPhase phase) const
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{
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PaintableBox::after_children_paint(context, phase);
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if (phase != PaintPhase::Foreground)
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return;
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context.display_list_recorder().restore();
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}
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}
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