mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-06-08 05:27:14 +09:00
a6dfc74e93
Before this change, we were going through the chain of base classes for each IDL interface object and having them set the prototype to their prototype. Instead of doing that, reorder things so that we set the right prototype immediately in Foo::initialize(), and then don't bother in all the base class overrides. This knocks off a ~1% profile item on Speedometer 3.
216 lines
9 KiB
C++
216 lines
9 KiB
C++
/*
|
||
* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
|
||
*
|
||
* SPDX-License-Identifier: BSD-2-Clause
|
||
*/
|
||
|
||
#include <LibGfx/Path.h>
|
||
#include <LibWeb/Bindings/Intrinsics.h>
|
||
#include <LibWeb/Bindings/SVGRectElementPrototype.h>
|
||
#include <LibWeb/SVG/AttributeNames.h>
|
||
#include <LibWeb/SVG/AttributeParser.h>
|
||
#include <LibWeb/SVG/SVGAnimatedLength.h>
|
||
#include <LibWeb/SVG/SVGLength.h>
|
||
#include <LibWeb/SVG/SVGRectElement.h>
|
||
|
||
namespace Web::SVG {
|
||
|
||
GC_DEFINE_ALLOCATOR(SVGRectElement);
|
||
|
||
SVGRectElement::SVGRectElement(DOM::Document& document, DOM::QualifiedName qualified_name)
|
||
: SVGGeometryElement(document, qualified_name)
|
||
{
|
||
}
|
||
|
||
void SVGRectElement::initialize(JS::Realm& realm)
|
||
{
|
||
WEB_SET_PROTOTYPE_FOR_INTERFACE(SVGRectElement);
|
||
Base::initialize(realm);
|
||
}
|
||
|
||
void SVGRectElement::attribute_changed(FlyString const& name, Optional<String> const& old_value, Optional<String> const& value, Optional<FlyString> const& namespace_)
|
||
{
|
||
Base::attribute_changed(name, old_value, value, namespace_);
|
||
|
||
if (name == SVG::AttributeNames::x) {
|
||
m_x = AttributeParser::parse_coordinate(value.value_or(String {}));
|
||
} else if (name == SVG::AttributeNames::y) {
|
||
m_y = AttributeParser::parse_coordinate(value.value_or(String {}));
|
||
} else if (name == SVG::AttributeNames::width) {
|
||
m_width = AttributeParser::parse_positive_length(value.value_or(String {}));
|
||
} else if (name == SVG::AttributeNames::height) {
|
||
m_height = AttributeParser::parse_positive_length(value.value_or(String {}));
|
||
} else if (name == SVG::AttributeNames::rx) {
|
||
m_radius_x = AttributeParser::parse_length(value.value_or(String {}));
|
||
} else if (name == SVG::AttributeNames::ry) {
|
||
m_radius_y = AttributeParser::parse_length(value.value_or(String {}));
|
||
}
|
||
}
|
||
|
||
Gfx::Path SVGRectElement::get_path(CSSPixelSize)
|
||
{
|
||
float width = m_width.value_or(0);
|
||
float height = m_height.value_or(0);
|
||
float x = m_x.value_or(0);
|
||
float y = m_y.value_or(0);
|
||
|
||
Gfx::Path path;
|
||
// If width or height is zero, rendering is disabled.
|
||
if (width == 0 || height == 0)
|
||
return path;
|
||
|
||
auto corner_radii = calculate_used_corner_radius_values();
|
||
float rx = corner_radii.width();
|
||
float ry = corner_radii.height();
|
||
|
||
// 1. perform an absolute moveto operation to location (x+rx,y);
|
||
path.move_to({ x + rx, y });
|
||
|
||
// 2, perform an absolute horizontal lineto with parameter x+width-rx;
|
||
path.horizontal_line_to(x + width - rx);
|
||
|
||
// 3. if both rx and ry are greater than zero,
|
||
// perform an absolute elliptical arc operation to coordinate (x+width,y+ry),
|
||
// where rx and ry are used as the equivalent parameters to the elliptical arc command,
|
||
// the x-axis-rotation and large-arc-flag are set to zero,
|
||
// the sweep-flag is set to one;
|
||
double x_axis_rotation = 0;
|
||
bool large_arc_flag = false;
|
||
bool sweep_flag = true;
|
||
if (rx > 0 && ry > 0)
|
||
path.elliptical_arc_to({ x + width, y + ry }, corner_radii, x_axis_rotation, large_arc_flag, sweep_flag);
|
||
|
||
// 4. perform an absolute vertical lineto parameter y+height-ry;
|
||
path.vertical_line_to(y + height - ry);
|
||
|
||
// 5. if both rx and ry are greater than zero,
|
||
// perform an absolute elliptical arc operation to coordinate (x+width-rx,y+height),
|
||
// using the same parameters as previously;
|
||
if (rx > 0 && ry > 0)
|
||
path.elliptical_arc_to({ x + width - rx, y + height }, corner_radii, x_axis_rotation, large_arc_flag, sweep_flag);
|
||
|
||
// 6. perform an absolute horizontal lineto parameter x+rx;
|
||
path.horizontal_line_to(x + rx);
|
||
|
||
// 7. if both rx and ry are greater than zero,
|
||
// perform an absolute elliptical arc operation to coordinate (x,y+height-ry),
|
||
// using the same parameters as previously;
|
||
if (rx > 0 && ry > 0)
|
||
path.elliptical_arc_to({ x, y + height - ry }, corner_radii, x_axis_rotation, large_arc_flag, sweep_flag);
|
||
|
||
// 8. perform an absolute vertical lineto parameter y+ry
|
||
path.vertical_line_to(y + ry);
|
||
|
||
// 9. if both rx and ry are greater than zero,
|
||
// perform an absolute elliptical arc operation with a segment-completing close path operation,
|
||
// using the same parameters as previously.
|
||
if (rx > 0 && ry > 0)
|
||
path.elliptical_arc_to({ x + rx, y }, corner_radii, x_axis_rotation, large_arc_flag, sweep_flag);
|
||
|
||
path.close();
|
||
|
||
return path;
|
||
}
|
||
|
||
Gfx::FloatSize SVGRectElement::calculate_used_corner_radius_values() const
|
||
{
|
||
// 1. Let rx and ry be length values.
|
||
float rx = 0;
|
||
float ry = 0;
|
||
|
||
// 2. If neither ‘rx’ nor ‘ry’ are properly specified, then set both rx and ry to 0. (This will result in square corners.)
|
||
if (!m_radius_x.has_value() && !m_radius_y.has_value()) {
|
||
rx = 0;
|
||
ry = 0;
|
||
}
|
||
// 3. Otherwise, if a properly specified value is provided for ‘rx’, but not for ‘ry’, then set both rx and ry to the value of ‘rx’.
|
||
else if (m_radius_x.has_value() && !m_radius_y.has_value()) {
|
||
rx = m_radius_x.value();
|
||
ry = m_radius_x.value();
|
||
}
|
||
// 4. Otherwise, if a properly specified value is provided for ‘ry’, but not for ‘rx’, then set both rx and ry to the value of ‘ry’.
|
||
else if (m_radius_y.has_value() && !m_radius_x.has_value()) {
|
||
rx = m_radius_y.value();
|
||
ry = m_radius_y.value();
|
||
}
|
||
// 5. Otherwise, both ‘rx’ and ‘ry’ were specified properly. Set rx to the value of ‘rx’ and ry to the value of ‘ry’.
|
||
else {
|
||
rx = m_radius_x.value();
|
||
ry = m_radius_y.value();
|
||
}
|
||
|
||
// 6. If rx is greater than half of ‘width’, then set rx to half of ‘width’.
|
||
auto half_width = m_width.value_or(0) / 2;
|
||
if (rx > half_width)
|
||
rx = half_width;
|
||
|
||
// 7. If ry is greater than half of ‘height’, then set ry to half of ‘height’.
|
||
auto half_height = m_height.value_or(0) / 2;
|
||
if (ry > half_height)
|
||
ry = half_height;
|
||
|
||
// 8. The effective values of ‘rx’ and ‘ry’ are rx and ry, respectively.
|
||
return { rx, ry };
|
||
}
|
||
|
||
// https://www.w3.org/TR/SVG11/shapes.html#RectElementXAttribute
|
||
GC::Ref<SVGAnimatedLength> SVGRectElement::x() const
|
||
{
|
||
// FIXME: Populate the unit type when it is parsed (0 here is "unknown").
|
||
// FIXME: Create a proper animated value when animations are supported.
|
||
auto base_length = SVGLength::create(realm(), 0, m_x.value_or(0));
|
||
auto anim_length = SVGLength::create(realm(), 0, m_x.value_or(0));
|
||
return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
|
||
}
|
||
|
||
// https://www.w3.org/TR/SVG11/shapes.html#RectElementYAttribute
|
||
GC::Ref<SVGAnimatedLength> SVGRectElement::y() const
|
||
{
|
||
// FIXME: Populate the unit type when it is parsed (0 here is "unknown").
|
||
// FIXME: Create a proper animated value when animations are supported.
|
||
auto base_length = SVGLength::create(realm(), 0, m_y.value_or(0));
|
||
auto anim_length = SVGLength::create(realm(), 0, m_y.value_or(0));
|
||
return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
|
||
}
|
||
|
||
// https://www.w3.org/TR/SVG11/shapes.html#RectElementWidthAttribute
|
||
GC::Ref<SVGAnimatedLength> SVGRectElement::width() const
|
||
{
|
||
// FIXME: Populate the unit type when it is parsed (0 here is "unknown").
|
||
// FIXME: Create a proper animated value when animations are supported.
|
||
auto base_length = SVGLength::create(realm(), 0, m_width.value_or(0));
|
||
auto anim_length = SVGLength::create(realm(), 0, m_width.value_or(0));
|
||
return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
|
||
}
|
||
|
||
// https://www.w3.org/TR/SVG11/shapes.html#RectElementHeightAttribute
|
||
GC::Ref<SVGAnimatedLength> SVGRectElement::height() const
|
||
{
|
||
// FIXME: Populate the unit type when it is parsed (0 here is "unknown").
|
||
// FIXME: Create a proper animated value when animations are supported.
|
||
auto base_length = SVGLength::create(realm(), 0, m_height.value_or(0));
|
||
auto anim_length = SVGLength::create(realm(), 0, m_height.value_or(0));
|
||
return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
|
||
}
|
||
|
||
// https://www.w3.org/TR/SVG11/shapes.html#RectElementRXAttribute
|
||
GC::Ref<SVGAnimatedLength> SVGRectElement::rx() const
|
||
{
|
||
// FIXME: Populate the unit type when it is parsed (0 here is "unknown").
|
||
// FIXME: Create a proper animated value when animations are supported.
|
||
auto base_length = SVGLength::create(realm(), 0, m_radius_x.value_or(0));
|
||
auto anim_length = SVGLength::create(realm(), 0, m_radius_x.value_or(0));
|
||
return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
|
||
}
|
||
|
||
// https://www.w3.org/TR/SVG11/shapes.html#RectElementRYAttribute
|
||
GC::Ref<SVGAnimatedLength> SVGRectElement::ry() const
|
||
{
|
||
// FIXME: Populate the unit type when it is parsed (0 here is "unknown").
|
||
// FIXME: Create a proper animated value when animations are supported.
|
||
auto base_length = SVGLength::create(realm(), 0, m_radius_y.value_or(0));
|
||
auto anim_length = SVGLength::create(realm(), 0, m_radius_y.value_or(0));
|
||
return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
|
||
}
|
||
|
||
}
|