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GTextEditor: Set content size based on the visual line rects (#500)

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When we update our content size, the width & height is now calculated
from the visual line rect size. Also now after we recompute all visual
lines, if the total height is different, we re-update the content size.
This commit is contained in:
Rhin 2019-08-28 23:26:24 -05:00 committed by Andreas Kling
parent b15a7c435f
commit d3ebd8897f
Notes: sideshowbarker 2024-07-19 12:26:51 +09:00 
Author: https://github.com/RyanGrieb
Commit: https://github.com/SerenityOS/serenity/commit/d3ebd8897f2
Pull-request: https://github.com/SerenityOS/serenity/pull/500
Reviewed-by: https://github.com/awesomekling
1 changed files with 13 additions and 3 deletions
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16
Libraries/LibGUI/GTextEditor.cpp
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@ -108,12 +108,18 @@ void GTextEditor::set_text(const StringView& text)
void GTextEditor::update_content_size()
{
int content_width = 0;
for (auto& line : m_lines)
content_width = max(line.width(font()), content_width);
int content_height = 0;
for (auto& line : m_lines) {
line.for_each_visual_line([&](const Rect& rect, const StringView&, int) {
content_width = max(rect.width(), content_width);
content_height += rect.height();
return IterationDecision::Continue;
});
}
content_width += m_horizontal_content_padding * 2;
if (is_right_text_alignment(m_text_alignment))
content_width = max(frame_inner_rect().width(), content_width);
int content_height = line_count() * line_height();
set_content_size({ content_width, content_height });
set_size_occupied_by_fixed_elements({ ruler_width(), 0 });
}
@ -1360,6 +1366,10 @@ void GTextEditor::recompute_all_visual_lines()
line.m_visual_rect.set_y(y_offset);
y_offset += line.m_visual_rect.height();
}
if (content_size().height() == y_offset)
return;
update_content_size();
}
void GTextEditor::Line::recompute_visual_lines()