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Check for widget != nullptr before add/remove child.

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This commit is contained in:
Jared Boone 2015-10-16 19:34:22 -07:00
parent dab801e167
commit dc30911e0f
1 changed files with 13 additions and 9 deletions
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22
firmware/common/ui_widget.cpp
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@ -304,10 +304,12 @@ void View::paint(Painter& painter) {
}
void View::add_child(Widget* const widget) {
if( widget->parent() == nullptr ) {
widget->set_parent(this);
children_.push_back(widget);
widget->set_dirty();
if( widget ) {
if( widget->parent() == nullptr ) {
widget->set_parent(this);
children_.push_back(widget);
widget->set_dirty();
}
}
}
@ -318,11 +320,13 @@ void View::add_children(const std::vector<Widget*>& children) {
}
void View::remove_child(Widget* const widget) {
children_.erase(std::remove(children_.begin(), children_.end(), widget), children_.end());
dirty_screen_rect += widget->screen_rect();
widget->set_parent(nullptr);
if( dirty_screen_rect ) {
set_dirty();
if( widget ) {
children_.erase(std::remove(children_.begin(), children_.end(), widget), children_.end());
dirty_screen_rect += widget->screen_rect();
widget->set_parent(nullptr);
if( dirty_screen_rect ) {
set_dirty();
}
}
}