ladybird/Userland/Libraries/LibWeb/Layout/SVGTextBox.cpp
MacDue 0e12503586 LibWeb: Split SVGTextContentElement into spec defined subclasses
As part of this move properties/methods to the correct subclass
(position related properties go under SVGTextPositioningElement).

SVG text element hierarchy:

  SVGTextContentElement
           ^- SVGTextPositioningElement
                     ^- SVGTextElement
                     ^- SVGTSpanElement
           ^- SVGTextPathElement (TODO)
           ^- SVGTRefElement (TODO)
2023-07-23 06:32:39 +02:00

44 lines
1.6 KiB
C++

/*
* Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Layout/SVGTextBox.h>
#include <LibWeb/Painting/SVGTextPaintable.h>
#include <LibWeb/SVG/SVGSVGElement.h>
namespace Web::Layout {
SVGTextBox::SVGTextBox(DOM::Document& document, SVG::SVGTextPositioningElement& element, NonnullRefPtr<CSS::StyleProperties> properties)
: SVGGraphicsBox(document, element, properties)
{
}
CSSPixelPoint SVGTextBox::viewbox_origin() const
{
auto* svg_box = dom_node().first_ancestor_of_type<SVG::SVGSVGElement>();
if (!svg_box || !svg_box->view_box().has_value())
return { 0, 0 };
return { svg_box->view_box().value().min_x, svg_box->view_box().value().min_y };
}
Optional<Gfx::AffineTransform> SVGTextBox::layout_transform() const
{
// FIXME: Since text layout boxes are currently 0x0 it is not possible handle viewBox scaling here.
auto& geometry_element = dom_node();
auto transform = geometry_element.get_transform();
auto* svg_box = geometry_element.first_ancestor_of_type<SVG::SVGSVGElement>();
auto origin = viewbox_origin().to_type<double>().to_type<float>();
Gfx::FloatPoint paint_offset = {};
if (svg_box && svg_box->view_box().has_value())
paint_offset = svg_box->paintable_box()->absolute_rect().location().to_type<double>().to_type<float>();
return Gfx::AffineTransform {}.translate(paint_offset).translate(-origin).multiply(transform);
}
JS::GCPtr<Painting::Paintable> SVGTextBox::create_paintable() const
{
return Painting::SVGTextPaintable::create(*this);
}
}