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LibWeb: Begin SVG element support

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This commit starts adding a basic SVG element. Currently, svg elements
have support for the width and height properties, as well as the stroke,
stroke-width, and fill properties. The only child element supported
is the path element, as most other graphical elements are just shorthand
for paths.
This commit is contained in:
Matthew Olsson 2020-07-19 23:01:53 -07:00 • committed by Andreas Kling
parent bbcdab2baa
commit 22f0953fe2
11 changed files with 1013 additions and 2 deletions
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67
Libraries/LibWeb/Layout/LayoutSvg.cpp Normal file
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/*
* Copyright (c) 2020, Matthew Olsson <matthewcolsson@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibGUI/Painter.h>
#include <LibGfx/Font.h>
#include <LibGfx/StylePainter.h>
#include <LibWeb/Layout/LayoutSvg.h>
namespace Web {
LayoutSvg::LayoutSvg(Document& document, const HTMLSvgElement& element, NonnullRefPtr<StyleProperties> style)
: LayoutReplaced(document, element, move(style))
{
}
void LayoutSvg::layout(LayoutMode layout_mode)
{
set_has_intrinsic_width(true);
set_has_intrinsic_height(true);
set_intrinsic_width(node().width());
set_intrinsic_height(node().height());
LayoutReplaced::layout(layout_mode);
}
void LayoutSvg::paint(PaintContext& context, PaintPhase phase)
{
if (!is_visible())
return;
LayoutReplaced::paint(context, phase);
if (phase == PaintPhase::Foreground) {
if (!context.viewport_rect().intersects(enclosing_int_rect(absolute_rect())))
return;
if (!node().bitmap())
node().create_bitmap();
ASSERT(node().bitmap());
context.painter().draw_scaled_bitmap(enclosing_int_rect(absolute_rect()), *node().bitmap(), node().bitmap()->rect());
}
}
}