ladybird/Libraries/LibHTML/Layout/LineBoxFragment.cpp

#include <LibGUI/GPainter.h>
#include <LibHTML/Layout/LayoutText.h>
#include <LibHTML/Layout/LineBoxFragment.h>
#include <LibHTML/RenderingContext.h>

void LineBoxFragment::render(RenderingContext& context)
{
    for (auto* ancestor = layout_node().parent(); ancestor; ancestor = ancestor->parent()) {
        if (!ancestor->is_visible())
            return;
    }

    if (is<LayoutText>(layout_node())) {
        to<LayoutText>(layout_node()).render_fragment(context, *this);
    }
}
LibHTML: Rewrite inline and text layout Inline layout is now done by LayoutBlock. Blocks with inline children will split them into line boxes during layout. A LayoutBlock can have zero or more LineBox objects. Each LineBox represents one visual line. A LineBox can have any number of LineBoxFragment children. A fragment is an offset+length into a specific LayoutNode. To paint a LayoutBlock with inline children, we walk its line boxes, and walk their fragments, painting each fragment at a time by calling LineBoxFragment::render(), which in turn calls the LayoutNode via LayoutText::render_fragment(). Hit testing works similarly. This is very incomplete and has many bugs, but should make it easier for us to move forward with this code. 2019-10-03 15:20:13 +02:00			`#include <LibGUI/GPainter.h>`
			`#include <LibHTML/Layout/LayoutText.h>`
			`#include <LibHTML/Layout/LineBoxFragment.h>`
			`#include <LibHTML/RenderingContext.h>`

			`void LineBoxFragment::render(RenderingContext& context)`
			`{`
LibHTML: Implement the <blink> element Just in time for Serenity's 1st birthday, here is the <blink> element! This patch adds a bunch of different mechanisms to enable partial repaints of the layout tree (LayoutNode::set_needs_display())) It also adds LayoutNode::is_visible(), which can be toggled to prevent a LayoutNode from rendering anything (it still takes up space though.) 2019-10-09 21:25:29 +02:00			`for (auto* ancestor = layout_node().parent(); ancestor; ancestor = ancestor->parent()) {`
			`if (!ancestor->is_visible())`
			`return;`
			`}`

LibHTML: Add is<T> and to<T> helpers for LayoutNode class family 2019-10-15 14:19:52 +02:00			`if (is<LayoutText>(layout_node())) {`
			`to<LayoutText>(layout_node()).render_fragment(context, *this);`
LibHTML: Rewrite inline and text layout Inline layout is now done by LayoutBlock. Blocks with inline children will split them into line boxes during layout. A LayoutBlock can have zero or more LineBox objects. Each LineBox represents one visual line. A LineBox can have any number of LineBoxFragment children. A fragment is an offset+length into a specific LayoutNode. To paint a LayoutBlock with inline children, we walk its line boxes, and walk their fragments, painting each fragment at a time by calling LineBoxFragment::render(), which in turn calls the LayoutNode via LayoutText::render_fragment(). Hit testing works similarly. This is very incomplete and has many bugs, but should make it easier for us to move forward with this code. 2019-10-03 15:20:13 +02:00			`}`
			`}`