From 2c2cb84e12a18e6630fca66c1d615d3c4d0c3f4e Mon Sep 17 00:00:00 2001
From: Otmane Lahlou <otmane.lahlou@c-s.fr>
Date: Thu, 8 Sep 2011 17:03:29 +0200
Subject: [PATCH] ENH : Add class from ITKApp to manage progressEvents of
ProcessObject filters
---
Code/Wrappers/QtWidget/itkQtProgressBar.cxx | 87 +++++++++++++++++++++
Code/Wrappers/QtWidget/itkQtProgressBar.h | 55 +++++++++++++
2 files changed, 142 insertions(+)
create mode 100644 Code/Wrappers/QtWidget/itkQtProgressBar.cxx
create mode 100644 Code/Wrappers/QtWidget/itkQtProgressBar.h
diff --git a/Code/Wrappers/QtWidget/itkQtProgressBar.cxx b/Code/Wrappers/QtWidget/itkQtProgressBar.cxx
new file mode 100644
index 0000000000..2bc74ab3b5
--- /dev/null
+++ b/Code/Wrappers/QtWidget/itkQtProgressBar.cxx
@@ -0,0 +1,87 @@
+/*=========================================================================
+
+ Program: Insight Segmentation & Registration Toolkit
+ Module: itkQtProgressBar.cxx
+ Language: C++
+ Date: $Date$
+ Version: $Revision$
+
+ Copyright (c) 2002 Insight Consortium. All rights reserved.
+ See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
+
+ This software is distributed WITHOUT ANY WARRANTY; without even
+ the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ PURPOSE. See the above copyright notices for more information.
+
+=========================================================================*/
+
+#include "itkProcessObject.h"
+#include "itkQtProgressBar.h"
+
+
+namespace itk {
+
+
+/** Constructor */
+QtProgressBar::QtProgressBar( QWidget *parent):QProgressBar(parent)
+{
+ m_RedrawCommand = RedrawCommandType::New();
+ m_RedrawCommand->SetCallbackFunction( this, &QtProgressBar::ProcessEvent );
+ m_RedrawCommand->SetCallbackFunction( this, &QtProgressBar::ConstProcessEvent );
+
+ this->setMaximum( 100 );
+ this->reset();
+}
+
+
+
+/** Get Command */
+QtProgressBar::RedrawCommandType *
+QtProgressBar::GetRedrawCommand( void ) const
+{
+ return m_RedrawCommand.GetPointer();
+}
+
+/** Manage a Progress event */
+void
+QtProgressBar::ProcessEvent( itk::Object * caller,
+ const itk::EventObject & event )
+{
+ if( typeid( itk::ProgressEvent ) == typeid( event ) )
+ {
+ ::itk::ProcessObject::Pointer process =
+ dynamic_cast< itk::ProcessObject *>( caller );
+
+ const int value = static_cast<int>(
+ process->GetProgress() * this->maximum() );
+
+ emit SetValueChanged( value );
+ }
+}
+
+void
+QtProgressBar::ConstProcessEvent( const itk::Object * caller,
+ const itk::EventObject & event )
+{
+ if( typeid( itk::ProgressEvent ) == typeid( event ) )
+ {
+ itk::ProcessObject::ConstPointer process =
+ dynamic_cast< const itk::ProcessObject *>( caller );
+
+ const int value = static_cast<int>(
+ process->GetProgress() * this->maximum() );
+
+ emit SetValueChanged( value );
+ }
+}
+
+/** Manage a Progress event */
+void
+QtProgressBar::Observe( itk::Object *caller )
+{
+ caller->AddObserver( itk::ProgressEvent(), m_RedrawCommand.GetPointer() );
+}
+
+} // end namespace fltk
+
+
diff --git a/Code/Wrappers/QtWidget/itkQtProgressBar.h b/Code/Wrappers/QtWidget/itkQtProgressBar.h
new file mode 100644
index 0000000000..493da8faac
--- /dev/null
+++ b/Code/Wrappers/QtWidget/itkQtProgressBar.h
@@ -0,0 +1,55 @@
+/*=========================================================================
+
+ Program: Insight Segmentation & Registration Toolkit
+ Module: itkQtProgressBar.h
+ Language: C++
+ Date: $Date$
+ Version: $Revision$
+
+ Copyright (c) 2002 Insight Consortium. All rights reserved.
+ See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
+
+ This software is distributed WITHOUT ANY WARRANTY; without even
+ the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ PURPOSE. See the above copyright notices for more information.
+
+=========================================================================*/
+#include <QtGui>
+#include "itkCommand.h"
+
+namespace itk {
+
+
+class QtProgressBar : public ::QProgressBar
+{
+ Q_OBJECT
+public:
+
+ /** Command Class invoked for button redraw */
+ typedef itk::MemberCommand< QtProgressBar > RedrawCommandType;
+
+ /** Constructor */
+ QtProgressBar( QWidget *parent );
+
+ /** Get Command */
+ RedrawCommandType * GetRedrawCommand( void ) const;
+
+
+ /** Manage a Progress event */
+ void ProcessEvent(itk::Object * caller, const itk::EventObject & event );
+ void ConstProcessEvent(const itk::Object * caller, const itk::EventObject & event );
+
+
+ /** Manage a Progress event */
+ void Observe( itk::Object *caller );
+
+signals:
+ void SetValueChanged(int);
+
+private:
+
+ RedrawCommandType::Pointer m_RedrawCommand;
+};
+
+
+} // end of namespace
--
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