--- /dev/null
+/**
+* LIGHT LightApp
+*
+* Copyright (C) 2005 CEA/DEN, EDF R&D
+*
+*
+*
+* File : LightApp_SwitchOp.h
+* Author : Sergey LITONIN
+* Module : LIGHT
+*/
+
+#include "LightApp_SwitchOp.h"
+#include "LightApp_Module.h"
+#include "LightApp_Operation.h"
+#include "LightApp_Dialog.h"
+#include <CAM_Application.h>
+#include <SUIT_Operation.h>
+#include <SUIT_Study.h>
+#include <qevent.h>
+#include <qwidget.h>
+#include <qptrlist.h>
+#include <qapplication.h>
+
+/*!
+ * \brief Constructor
+ * \param theParent - parent of object
+*
+* Creates instance of the object. Connects signals and slots. Install eveny filter
+* on application
+*/
+LightApp_SwitchOp::LightApp_SwitchOp( LightApp_Module* theModule )
+: QObject( 0 ),
+ myModule( theModule )
+{
+ qApp->installEventFilter( this );
+}
+
+/*!
+ * \brief Destructor
+*/
+LightApp_SwitchOp::~LightApp_SwitchOp()
+{
+
+}
+
+/*!
+ * \brief Get module
+*
+* Get module. Module is a parent of this class
+*/
+LightApp_Module* LightApp_SwitchOp::module() const
+{
+ return myModule;
+}
+
+/*!
+ * \brief Get study
+ * \return Active study of application (in current realisation)
+*
+* Get study
+*/
+SUIT_Study* LightApp_SwitchOp::study() const
+{
+ return module()->application()->activeStudy();
+}
+
+/*!
+ * \brief Get operation by widget
+ * \param theWg - key widget to find operation
+ * \return Pointer to the operations if it is found or zero
+*
+* Find operation containing dialog with given widget
+*/
+LightApp_Operation* LightApp_SwitchOp::operation( QWidget* theWg ) const
+{
+ // get dialog from widget
+ LightApp_Dialog* aDlg = 0;
+ QWidget* aParent = theWg;
+ while( aParent && !aParent->inherits( "LightApp_Dialog" ) )
+ aParent = aParent->parentWidget();
+
+ if ( aParent && aParent->inherits( "LightApp_Dialog" ) )
+ aDlg = (LightApp_Dialog*)aParent;
+
+ // try to find operation corresponding to the dialog
+ if ( aDlg != 0 && study() != 0 )
+ {
+ QPtrListIterator<SUIT_Operation> anIter( study()->operations() );
+ while( SUIT_Operation* anOp = anIter.current() )
+ {
+ if ( anOp->inherits( "LightApp_Operation" ) &&
+ ((LightApp_Operation*)anOp)->dlg() == aDlg )
+ return ((LightApp_Operation*)anOp);
+ ++anIter;
+ }
+ }
+
+ return 0;
+}
+
+/*!
+ * \brief Event filter
+ * \param theObj - object
+ * \param theEv - event
+*
+* Event filter. Catched signals off application. If event concerns to dialog then
+* corresponding operation is found and activated.
+*/
+bool LightApp_SwitchOp::eventFilter( QObject* theObj, QEvent* theEv )
+{
+ if ( theObj->inherits( "QWidget" ) && ( theEv->type() == QEvent::Enter ) )
+ {
+ QEvent::Type aType = theEv->type();
+ LightApp_Operation* anOp = operation( (QWidget*)theObj );
+ if ( anOp )
+ {
+ switch ( aType )
+ {
+ case QEvent::Enter:
+ {
+ if ( !anOp->isActive() && anOp->isAutoResumed() &&
+ study() && !study()->blockingOperation( anOp ) )
+ study()->resume( anOp );
+ }
+ break;
+
+ case QEvent::MouseButtonRelease:
+ case QEvent::MouseButtonPress:
+ case QEvent::MouseButtonDblClick:
+ case QEvent::MouseMove:
+ case QEvent::KeyPress:
+ case QEvent::KeyRelease:
+ {
+ if ( !anOp->isActive() )
+ return true;
+ }
+ break;
+
+ }
+ }
+ }
+
+ return QObject::eventFilter( theObj, theEv );
+}
+
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