LibWeb: Rename LayoutNode classes and move them into Layout namespace

Bring the names of various boxes closer to spec language. This should hopefully make things easier to understand and hack on. :^) Some notable changes: - LayoutNode -> Layout::Node - LayoutBox -> Layout::Box - LayoutBlock -> Layout::BlockBox - LayoutReplaced -> Layout::ReplacedBox - LayoutDocument -> Layout::InitialContainingBlockBox - LayoutText -> Layout::TextNode - LayoutInline -> Layout::InlineNode Note that this is not strictly a "box tree" as we also hang inline/text nodes in the same tree, and they don't generate boxes. (Instead, they contribute line box fragments to their containing block!)
2025-05-31 10:38:11 +00:00 · 2020-11-22 15:53:01 +01:00 · 2020-11-22 15:53:01 +01:00 · 5aeab9878e
commit 5aeab9878e
parent f358f2255f
114 changed files with 863 additions and 880 deletions
--- a/Libraries/LibWeb/Layout/SVGPathBox.cpp
+++ b/Libraries/LibWeb/Layout/SVGPathBox.cpp
@ -0,0 +1,89 @@
+/*
+ * 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 <LibGfx/Painter.h>
+#include <LibWeb/Layout/SVGPathBox.h>
+#include <LibWeb/SVG/SVGPathElement.h>
+
+namespace Web::Layout {
+
+SVGPathBox::SVGPathBox(DOM::Document& document, SVG::SVGPathElement& element, NonnullRefPtr<CSS::StyleProperties> properties)
+    : SVGGraphicsBox(document, element, properties)
+{
+}
+
+void SVGPathBox::prepare_for_replaced_layout()
+{
+    auto& bounding_box = dom_node().get_path().bounding_box();
+    set_has_intrinsic_width(true);
+    set_has_intrinsic_height(true);
+    set_intrinsic_width(bounding_box.width());
+    set_intrinsic_height(bounding_box.height());
+
+    // FIXME: This does not belong here! Someone at a higher level should place this box.
+    set_offset(bounding_box.top_left());
+}
+
+void SVGPathBox::paint(PaintContext& context, PaintPhase phase)
+{
+    if (!is_visible())
+        return;
+
+    SVGGraphicsBox::paint(context, phase);
+
+    if (phase != PaintPhase::Foreground)
+        return;
+
+    auto& path_element = dom_node();
+    auto& path = path_element.get_path();
+
+    // We need to fill the path before applying the stroke, however the filled
+    // path must be closed, whereas the stroke path may not necessary be closed.
+    // Copy the path and close it for filling, but use the previous path for stroke
+    auto closed_path = path;
+    closed_path.close();
+
+    // Fills are computed as though all paths are closed (https://svgwg.org/svg2-draft/painting.html#FillProperties)
+    auto& painter = context.painter();
+    auto& svg_context = context.svg_context();
+
+    auto offset = (absolute_position() - effective_offset()).to_type<int>();
+
+    painter.translate(offset);
+
+    painter.fill_path(
+        closed_path,
+        path_element.fill_color().value_or(svg_context.fill_color()),
+        Gfx::Painter::WindingRule::EvenOdd);
+    painter.stroke_path(
+        path,
+        path_element.stroke_color().value_or(svg_context.stroke_color()),
+        path_element.stroke_width().value_or(svg_context.stroke_width()));
+
+    painter.translate(-offset);
+}
+
+}