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LibGUI: Add GWidget::for_each_child_widget(callback).

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This commit is contained in:
Andreas Kling
2019-05-27 03:52:33 +02:00
parent 906fde8f8c
commit 723ba91f74
6 changed files with 43 additions and 40 deletions
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16
LibGUI/GSplitter.cpp
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@@ -40,17 +40,15 @@ void GSplitter::mousedown_event(GMouseEvent& event)
GWidget* first_resizee { nullptr };
GWidget* second_resizee { nullptr };
int fudge = layout()->spacing();
for (auto* child : children()) {
if (!child->is_widget())
continue;
auto& child_widget = *static_cast<GWidget*>(child);
int child_start = m_orientation == Orientation::Horizontal ? child_widget.relative_rect().left() : child_widget.relative_rect().top();
int child_end = m_orientation == Orientation::Horizontal ? child_widget.relative_rect().right() : child_widget.relative_rect().bottom();
for_each_child_widget([&] (auto& child) {
int child_start = m_orientation == Orientation::Horizontal ? child.relative_rect().left() : child.relative_rect().top();
int child_end = m_orientation == Orientation::Horizontal ? child.relative_rect().right() : child.relative_rect().bottom();
if (x_or_y > child_end && (x_or_y - fudge) <= child_end)
first_resizee = &child_widget;
first_resizee = &child;
if (x_or_y < child_start && (x_or_y + fudge) >= child_start)
second_resizee = &child_widget;
}
second_resizee = &child;
return IterationDecision::Continue;
});
ASSERT(first_resizee && second_resizee);
m_first_resizee = first_resizee->make_weak_ptr();
m_second_resizee = second_resizee->make_weak_ptr();