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183f7c9830
Here's how you can use this to speed up startup time:
auto widget = GLazyWidget::construct();
widget->on_first_show = [](auto& self) {
self.set_layout(...);
...
};
Basically, it allows you to delay building the widget subtree until
it's shown for the first time.
20 lines
306 B
C++
20 lines
306 B
C++
#include <LibGUI/GLazyWidget.h>
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GLazyWidget::GLazyWidget(GWidget* parent)
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: GWidget(parent)
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{
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}
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GLazyWidget::~GLazyWidget()
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{
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}
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void GLazyWidget::show_event(GShowEvent&)
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{
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if (m_has_been_shown)
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return;
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m_has_been_shown = true;
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ASSERT(on_first_show);
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on_first_show(*this);
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}
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