GSI Object Oriented Online Offline (Go4): qt4/Go4GUI/TGo4MdiArea.cpp Source File

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00001 // $Id$
00002 //-----------------------------------------------------------------------
00003 //       The GSI Online Offline Object Oriented (Go4) Project
00004 //         Experiment Data Processing at EE department, GSI
00005 //-----------------------------------------------------------------------
00006 // Copyright (C) 2000- GSI Helmholtzzentrum f�r Schwerionenforschung GmbH
00007 //                     Planckstr. 1, 64291 Darmstadt, Germany
00008 // Contact:            http://go4.gsi.de
00009 //-----------------------------------------------------------------------
00010 // This software can be used under the license agreements as stated
00011 // in Go4License.txt file which is part of the distribution.
00012 //-----------------------------------------------------------------------
00013 
00014 #include "TGo4MdiArea.h"
00015 
00016 #include "TPad.h"
00017 #include "TROOT.h"
00018 
00019 #include <QMdiSubWindow>
00020 
00021 #include "TGo4ViewPanel.h"
00022 #include "QGo4Widget.h"
00023 
00024 TGo4MdiArea* TGo4MdiArea::fInstance = 0;
00025 
00026 TGo4MdiArea* TGo4MdiArea::Instance()
00027 {
00028    return fInstance;
00029 }
00030 
00031 TGo4MdiArea::TGo4MdiArea(QWidget* parent) :
00032    QMdiArea(parent),
00033    fxActivePanel(0),
00034    fxActivePad(0),
00035    fxSelectedPad(0)
00036 {
00037    setSizeIncrement( QSize( 100, 100 ) );
00038    setBaseSize( QSize( 100, 100 ) );
00039 
00040    connect(this,SIGNAL(subWindowActivated (QMdiSubWindow*)), this, SLOT(subWindowActivatedSlot(QMdiSubWindow*)));
00041 
00042    if (fInstance==0) fInstance = this;
00043 }
00044 
00045 TGo4MdiArea::~TGo4MdiArea()
00046 {
00047    if (fInstance==this) fInstance = 0;
00048 }
00049 
00050 
00051 TPad* TGo4MdiArea::GetSelectedPad()
00052 {
00053     return fxSelectedPad;
00054 }
00055 
00056 void TGo4MdiArea::SetSelectedPad(TPad* pad)
00057 {
00058    fxSelectedPad = pad;
00059    gROOT->SetSelectedPad(pad);
00060    gPad = pad;
00061 }
00062 
00063 TGo4ViewPanel* TGo4MdiArea::GetActivePanel()
00064 {
00065    return fxActivePanel;
00066 }
00067 
00068 void TGo4MdiArea::subWindowActivatedSlot(QMdiSubWindow* sub)
00069 {
00070    TGo4ViewPanel* panel = dynamic_cast<TGo4ViewPanel*> (sub ? sub->widget() : 0);
00071 
00072    if ((panel!=0) && (fxActivePanel != panel))
00073      panel->SetActivePad(panel->GetActivePad());
00074 }
00075 
00076 void TGo4MdiArea::ResponseOnPanelEvent(int funcid, TGo4ViewPanel* panel, TPad* pad)
00077 {
00078    if (panel==0) return;
00079 
00080    switch (funcid) {
00081       case QGo4Widget::panel_Activated: {
00082         if ((fxActivePanel!=panel) && (fxActivePanel!=0))
00083           fxActivePanel->SetActivePad(0);
00084 
00085         bool changed = (fxActivePanel != panel) || (fxActivePad != pad);
00086         fxActivePanel = panel;
00087         fxActivePad = pad;
00088 
00089         if (changed)
00090            emit panelSignal(panel, pad, QGo4Widget::panel_Activated);
00091 
00092         break;
00093       }
00094 
00095       case QGo4Widget::panel_Modified: {
00096          emit panelSignal(panel, pad, QGo4Widget::panel_Modified);
00097          break;
00098       }
00099 
00100       case QGo4Widget::panel_Updated: {
00101          emit panelSignal(panel, pad, QGo4Widget::panel_Updated);
00102          if ((panel==fxActivePanel) && (pad==fxActivePad))
00103            emit panelSignal(panel, pad, QGo4Widget::panel_ActiveUpdated);
00104          break;
00105       }
00106 
00107       case QGo4Widget::panel_PadDeleted: {
00108          if (GetSelectedPad()==pad) SetSelectedPad(0);
00109          if (fxActivePad==pad) fxActivePad=0;
00110          emit panelSignal(panel, pad, QGo4Widget::panel_PadDeleted);
00111          break;
00112       }
00113 
00114       case QGo4Widget::panel_Deleted: {
00115         if (GetSelectedPad()!=0)
00116           if (panel->IsPanelPad(GetSelectedPad()))
00117              SetSelectedPad(0);
00118         if (fxActivePanel==panel) {
00119            fxActivePanel = 0;
00120            fxActivePad = 0;
00121         }
00122         emit panelSignal(panel, pad, QGo4Widget::panel_Deleted);
00123         break;
00124       }
00125    }
00126 }
00127