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LibWeb: Move background painting from Box to its own file

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This makes the code accessible to things that aren't a Box, such as
InlineNode.
This commit is contained in:
Sam Atkins 2021-09-19 15:58:26 +01:00 • committed by Andreas Kling
parent b047c1bc97
commit abc22b727c
5 changed files with 86 additions and 49 deletions
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51
Userland/Libraries/LibWeb/Painting/BackgroundPainting.cpp Normal file
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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibGfx/Painter.h>
#include <LibWeb/Painting/BackgroundPainting.h>
#include <LibWeb/Painting/PaintContext.h>
namespace Web::Painting {
void paint_background(PaintContext& context, Gfx::IntRect const& background_rect, BackgroundData const& background_data, BorderRadiusData const& border_radius)
{
// FIXME: Support elliptical corners
context.painter().fill_rect_with_rounded_corners(background_rect, background_data.color, border_radius.top_left, border_radius.top_right, border_radius.bottom_right, border_radius.bottom_left);
// FIXME: Support multiple background layers
if (background_data.image) {
auto image_rect = background_rect;
switch (background_data.repeat_x) {
case CSS::Repeat::Round:
case CSS::Repeat::Space:
// FIXME: Support 'round' and 'space'. Fall through to 'repeat' since that most closely resembles these.
case CSS::Repeat::Repeat:
// The background rect is already sized to align with 'repeat'.
break;
case CSS::Repeat::NoRepeat:
image_rect.set_width(background_data.image->width());
break;
}
switch (background_data.repeat_y) {
case CSS::Repeat::Round:
case CSS::Repeat::Space:
// FIXME: Support 'round' and 'space'. Fall through to 'repeat' since that most closely resembles these.
case CSS::Repeat::Repeat:
// The background rect is already sized to align with 'repeat'.
break;
case CSS::Repeat::NoRepeat:
image_rect.set_height(background_data.image->height());
break;
}
// FIXME: Handle rounded corners
context.painter().blit_tiled(image_rect, *background_data.image, background_data.image->rect());
}
}
}

25
Userland/Libraries/LibWeb/Painting/BackgroundPainting.h Normal file
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/*
* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibGfx/Forward.h>
#include <LibWeb/CSS/StyleValue.h>
#include <LibWeb/Painting/BorderPainting.h>
#include <LibWeb/Painting/PaintContext.h>
namespace Web::Painting {
struct BackgroundData {
Color color;
Gfx::Bitmap const* image;
CSS::Repeat repeat_x;
CSS::Repeat repeat_y;
};
void paint_background(PaintContext&, Gfx::IntRect const&, BackgroundData const&, BorderRadiusData const&);
}