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ab76b99f1e
A new display list item type named PaintScrollBar is introduced. Having a dedicated type for scroll bars allows the thumb position to be updated without rebuilding a display list. This was not possible with FillRectWithRoundedCorners that does not allow to tell whether it belongs to scroll thumb.
49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
/*
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* Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibWeb/Painting/ClipFrame.h>
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#include <LibWeb/Painting/ScrollFrame.h>
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namespace Web::Painting {
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class ClippableAndScrollable {
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public:
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virtual ~ClippableAndScrollable() = default;
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void set_enclosing_scroll_frame(RefPtr<ScrollFrame> scroll_frame) { m_enclosing_scroll_frame = scroll_frame; }
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void set_enclosing_clip_frame(RefPtr<ClipFrame> clip_frame) { m_enclosing_clip_frame = clip_frame; }
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[[nodiscard]] RefPtr<ScrollFrame const> enclosing_scroll_frame() const { return m_enclosing_scroll_frame; }
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[[nodiscard]] Optional<int> scroll_frame_id() const;
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[[nodiscard]] CSSPixelPoint cumulative_offset_of_enclosing_scroll_frame() const;
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[[nodiscard]] Optional<CSSPixelRect> clip_rect_for_hit_testing() const;
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[[nodiscard]] Optional<int> own_scroll_frame_id() const;
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[[nodiscard]] CSSPixelPoint own_scroll_frame_offset() const
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{
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if (m_own_scroll_frame)
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return m_own_scroll_frame->own_offset;
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return {};
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}
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void set_own_scroll_frame(RefPtr<ScrollFrame> scroll_frame) { m_own_scroll_frame = scroll_frame; }
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void apply_clip(PaintContext&) const;
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void restore_clip(PaintContext&) const;
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Gfx::AffineTransform const& combined_css_transform() const { return m_combined_css_transform; }
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void set_combined_css_transform(Gfx::AffineTransform const& transform) { m_combined_css_transform = transform; }
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private:
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RefPtr<ScrollFrame const> m_enclosing_scroll_frame;
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RefPtr<ScrollFrame const> m_own_scroll_frame;
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RefPtr<ClipFrame const> m_enclosing_clip_frame;
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Gfx::AffineTransform m_combined_css_transform;
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};
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}
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