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fix crash error when operate a closed treebox

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This commit is contained in:
Jinhao 2017-07-17 00:37:30 +08:00
parent 87698de126
commit cb6191cc88
2 changed files with 6 additions and 0 deletions
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1
include/nana/gui/widgets/treebox.hpp
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@ -140,6 +140,7 @@ namespace nana
private: private:
//Overrides drawer_trigger methods //Overrides drawer_trigger methods
void attached(widget_reference, graph_reference) override; void attached(widget_reference, graph_reference) override;
void detached() override;
void refresh(graph_reference) override; void refresh(graph_reference) override;
void dbl_click(graph_reference, const arg_mouse&) override; void dbl_click(graph_reference, const arg_mouse&) override;
void mouse_down(graph_reference, const arg_mouse&) override; void mouse_down(graph_reference, const arg_mouse&) override;

5
source/gui/widgets/treebox.cpp
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@ -1781,6 +1781,11 @@ namespace nana
widget.caption("nana treebox"); widget.caption("nana treebox");
} }
void trigger::detached()
{
impl_->data.graph = nullptr;
}
void trigger::refresh(graph_reference) void trigger::refresh(graph_reference)
{ {
//Don't reset the scroll and update the window //Don't reset the scroll and update the window