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https://github.com/RGBCube/serenity
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LibWeb: Support transforms, stroking, gradients, etc for SVG <text>
This makes use of the new Gfx::Path::text() to handle SVG text elements, with this text is just a regular path, and can be manipulated like any other graphics element. This removes the SVGTextPaintable and makes both <text> and geometry elements use a new (shared) SVGPathPaintable. This is identical to the old SVGGeometryPaintable. This simplifies painting as once something is resolved to a Gfx::Path, the painting logic is the same.
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50d33f79fa
commit
4c5d48f861
30 changed files with 144 additions and 180 deletions
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@ -6,27 +6,27 @@
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*/
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#include <LibGfx/AntiAliasingPainter.h>
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#include <LibWeb/Painting/SVGGeometryPaintable.h>
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#include <LibWeb/Painting/SVGPathPaintable.h>
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#include <LibWeb/SVG/SVGSVGElement.h>
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namespace Web::Painting {
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JS::NonnullGCPtr<SVGGeometryPaintable> SVGGeometryPaintable::create(Layout::SVGGeometryBox const& layout_box)
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JS::NonnullGCPtr<SVGPathPaintable> SVGPathPaintable::create(Layout::SVGGraphicsBox const& layout_box)
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{
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return layout_box.heap().allocate_without_realm<SVGGeometryPaintable>(layout_box);
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return layout_box.heap().allocate_without_realm<SVGPathPaintable>(layout_box);
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}
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SVGGeometryPaintable::SVGGeometryPaintable(Layout::SVGGeometryBox const& layout_box)
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SVGPathPaintable::SVGPathPaintable(Layout::SVGGraphicsBox const& layout_box)
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: SVGGraphicsPaintable(layout_box)
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{
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}
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Layout::SVGGeometryBox const& SVGGeometryPaintable::layout_box() const
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Layout::SVGGraphicsBox const& SVGPathPaintable::layout_box() const
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{
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return static_cast<Layout::SVGGeometryBox const&>(layout_node());
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return static_cast<Layout::SVGGraphicsBox const&>(layout_node());
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}
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Optional<HitTestResult> SVGGeometryPaintable::hit_test(CSSPixelPoint position, HitTestType type) const
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Optional<HitTestResult> SVGPathPaintable::hit_test(CSSPixelPoint position, HitTestType type) const
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{
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auto result = SVGGraphicsPaintable::hit_test(position, type);
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if (!result.has_value() || !computed_path().has_value())
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@ -49,7 +49,7 @@ static Gfx::Painter::WindingRule to_gfx_winding_rule(SVG::FillRule fill_rule)
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}
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}
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void SVGGeometryPaintable::paint(PaintContext& context, PaintPhase phase) const
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void SVGPathPaintable::paint(PaintContext& context, PaintPhase phase) const
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{
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if (!is_visible() || !computed_path().has_value())
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return;
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@ -6,22 +6,22 @@
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#pragma once
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#include <LibWeb/Layout/SVGGeometryBox.h>
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#include <LibWeb/Layout/SVGGraphicsBox.h>
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#include <LibWeb/Painting/SVGGraphicsPaintable.h>
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namespace Web::Painting {
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class SVGGeometryPaintable final : public SVGGraphicsPaintable {
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JS_CELL(SVGGeometryPaintable, SVGGraphicsPaintable);
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class SVGPathPaintable final : public SVGGraphicsPaintable {
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JS_CELL(SVGPathPaintable, SVGGraphicsPaintable);
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public:
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static JS::NonnullGCPtr<SVGGeometryPaintable> create(Layout::SVGGeometryBox const&);
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static JS::NonnullGCPtr<SVGPathPaintable> create(Layout::SVGGraphicsBox const&);
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virtual Optional<HitTestResult> hit_test(CSSPixelPoint, HitTestType) const override;
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virtual void paint(PaintContext&, PaintPhase) const override;
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Layout::SVGGeometryBox const& layout_box() const;
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Layout::SVGGraphicsBox const& layout_box() const;
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void set_computed_path(Gfx::Path path)
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{
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@ -31,7 +31,7 @@ public:
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Optional<Gfx::Path> const& computed_path() const { return m_computed_path; }
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protected:
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SVGGeometryPaintable(Layout::SVGGeometryBox const&);
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SVGPathPaintable(Layout::SVGGraphicsBox const&);
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Optional<Gfx::Path> m_computed_path = {};
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};
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@ -1,50 +0,0 @@
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/*
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* Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/Painting/SVGTextPaintable.h>
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#include <LibWeb/SVG/SVGSVGElement.h>
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namespace Web::Painting {
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JS::NonnullGCPtr<SVGTextPaintable> SVGTextPaintable::create(Layout::SVGTextBox const& layout_box)
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{
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return layout_box.heap().allocate_without_realm<SVGTextPaintable>(layout_box);
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}
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SVGTextPaintable::SVGTextPaintable(Layout::SVGTextBox const& layout_box)
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: SVGGraphicsPaintable(layout_box)
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{
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}
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void SVGTextPaintable::paint(PaintContext& context, PaintPhase phase) const
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{
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if (!is_visible())
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return;
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if (!layout_node().computed_values().fill().has_value())
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return;
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if (layout_node().computed_values().fill()->is_url()) {
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dbgln("FIXME: Using url() as fill is not supported for svg text");
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return;
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}
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SVGGraphicsPaintable::paint(context, phase);
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if (phase != PaintPhase::Foreground)
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return;
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auto& painter = context.painter();
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auto const& dom_node = layout_box().dom_node();
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auto paint_transform = computed_transforms().svg_to_device_pixels_transform(context);
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auto& scaled_font = layout_box().scaled_font(paint_transform.x_scale());
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auto text_rect = context.enclosing_device_rect(absolute_rect()).to_type<int>();
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auto text_contents = dom_node.text_contents();
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painter.draw_text_run(text_rect.bottom_left(), Utf8View { text_contents }, scaled_font, layout_node().computed_values().fill()->as_color(), text_rect);
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}
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}
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@ -1,31 +0,0 @@
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/*
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* Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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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 <LibWeb/Layout/SVGTextBox.h>
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#include <LibWeb/Painting/SVGGraphicsPaintable.h>
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namespace Web::Painting {
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class SVGTextPaintable final : public SVGGraphicsPaintable {
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JS_CELL(SVGTextPaintable, SVGGraphicsPaintable);
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public:
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static JS::NonnullGCPtr<SVGTextPaintable> create(Layout::SVGTextBox const&);
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virtual void paint(PaintContext&, PaintPhase) const override;
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Layout::SVGTextBox const& layout_box() const
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{
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return static_cast<Layout::SVGTextBox const&>(layout_node());
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}
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protected:
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SVGTextPaintable(Layout::SVGTextBox const&);
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};
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}
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