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LibGUI: Add a GStackWidget for many widgets sharing a single location.

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Call set_active_widget(GWidget*) to put a new widget on top.
This commit is contained in:
Andreas Kling 2019-03-15 16:12:06 +01:00
parent ab92252ee6
commit 497300c492
10 changed files with 157 additions and 5 deletions
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13
LibGUI/GWidget.cpp
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@ -91,6 +91,8 @@ void GWidget::handle_paint_event(GPaintEvent& event)
paint_event(event);
for (auto* ch : children()) {
auto* child = (GWidget*)ch;
if (!child->is_visible())
continue;
if (child->relative_rect().intersects(event.rect())) {
auto local_rect = event.rect();
local_rect.intersect(child->relative_rect());
@ -303,3 +305,14 @@ void GWidget::invalidate_layout()
return;
w->main_widget()->do_layout();
}
void GWidget::set_visible(bool visible)
{
if (visible == m_visible)
return;
m_visible = visible;
if (auto* parent = parent_widget())
parent->invalidate_layout();
if (m_visible)
update();
}