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https://github.com/RGBCube/serenity
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9a97adf121
This will be needed for overflow: hidden, that clips things which may themselves use the BorderRadiusCornerClipper.
63 lines
1.7 KiB
C++
63 lines
1.7 KiB
C++
/*
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* Copyright (c) 2022, MacDue <macdue@dueutil.tech>
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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 <LibGfx/AntiAliasingPainter.h>
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#include <LibWeb/Painting/BorderPainting.h>
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namespace Web::Painting {
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enum class CornerClip {
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Outside,
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Inside
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};
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class BorderRadiusCornerClipper {
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public:
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enum class UseCachedBitmap {
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Yes,
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No
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};
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static ErrorOr<BorderRadiusCornerClipper> create(Gfx::IntRect const& border_rect, BorderRadiiData const& border_radii, CornerClip corner_clip = CornerClip::Outside, UseCachedBitmap use_cached_bitmap = UseCachedBitmap::Yes);
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void sample_under_corners(Gfx::Painter& page_painter);
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void blit_corner_clipping(Gfx::Painter& page_painter);
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private:
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using CornerRadius = Gfx::AntiAliasingPainter::CornerRadius;
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struct CornerData {
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struct CornerRadii {
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CornerRadius top_left;
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CornerRadius top_right;
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CornerRadius bottom_right;
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CornerRadius bottom_left;
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} corner_radii;
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struct CornerLocations {
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Gfx::IntPoint top_left;
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Gfx::IntPoint top_right;
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Gfx::IntPoint bottom_right;
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Gfx::IntPoint bottom_left;
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};
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CornerLocations page_locations;
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CornerLocations bitmap_locations;
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Gfx::IntSize corner_bitmap_size;
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} m_data;
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NonnullRefPtr<Gfx::Bitmap> m_corner_bitmap;
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bool m_has_sampled { false };
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CornerClip m_corner_clip { false };
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BorderRadiusCornerClipper(CornerData corner_data, NonnullRefPtr<Gfx::Bitmap> corner_bitmap, CornerClip corner_clip)
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: m_data(move(corner_data))
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, m_corner_bitmap(corner_bitmap)
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, m_corner_clip(corner_clip)
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{
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}
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};
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}
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