From 466b55360244421a73092b3f0fea0c707d2c9317 Mon Sep 17 00:00:00 2001
From: Julien Michel <julien.michel@orfeo-toolbox.org>
Date: Mon, 11 May 2009 16:09:29 +0200
Subject: [PATCH] BUG: Fl_Widget destructor generates one last FL_HIDE event
which causes segmentation fault (maybe because the object is already in its
desctruction process). Therefore we should avoid to process FL_HIDE events.
---
Code/Visualization/otbGlWidget.cxx | 21 +++++++++++++--------
1 file changed, 13 insertions(+), 8 deletions(-)
diff --git a/Code/Visualization/otbGlWidget.cxx b/Code/Visualization/otbGlWidget.cxx
index b9d16352b7..4afae9e560 100644
--- a/Code/Visualization/otbGlWidget.cxx
+++ b/Code/Visualization/otbGlWidget.cxx
@@ -37,7 +37,10 @@ GlWidget
}
GlWidget::~GlWidget()
-{}
+{
+ // Clear registered controller
+ m_Controller = NULL;
+}
void GlWidget::PrintSelf(std::ostream& os, itk::Indent indent) const
{
@@ -123,15 +126,17 @@ void GlWidget::resize(int x, int y, int w, int h)
int GlWidget::handle(int event)
{
- // If there is a controller
- if(m_Controller.IsNotNull())
- {
- return m_Controller->HandleWidgetEvent(m_Identifier,event);
- }
- else
+ // Call superclass implementation
+ int resp = Fl_Widget::handle(event);
+
+ // Check if there is a controller
+ // Avoid processing hide events, since it causes segfault (the
+ // destructor of the Fl class generates hide events).
+ if(m_Controller.IsNotNull() && event != FL_HIDE)
{
- return 0;
+ resp = m_Controller->HandleWidgetEvent(m_Identifier,event);
}
+ return resp;
}
GlWidget::PointType GlWidget::GetMousePosition()
--
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