src/XGUI/XGUI_ActiveControlMgr.cpp

   1 // Copyright (C) 2014-2021  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include "XGUI_ActiveControlMgr.h"
  21 #include "XGUI_ActiveControlSelector.h"
  22 #include "XGUI_SelectionActivate.h"
  23 #include "XGUI_SelectionMgr.h"
  24 #include "XGUI_Tools.h"
  25 #include "XGUI_Workshop.h"
  26
  27 #include <ModuleBase_IModule.h>
  28 #include <ModuleBase_IWorkshop.h>
  29
  30 //#define DEBUG_ACTIVE_SELECTOR
  31
  32 #ifdef DEBUG_ACTIVE_SELECTOR
  33 void debugInfo(const QString& theMessage, XGUI_ActiveControlSelector* theSelector)
  34 {
  35   std::cout << theMessage.toStdString().c_str() << ", active: "
  36     << (theSelector ? theSelector->getType().toStdString().c_str() : "NULL") << std::endl;
  37 }
  38 #endif
  39
  40 //********************************************************************
  41 XGUI_ActiveControlMgr::XGUI_ActiveControlMgr(ModuleBase_IWorkshop* theWorkshop)
  42 : myWorkshop(theWorkshop), myActiveSelector(0), myIsBlocked(false)
  43 {
  44   connect(myWorkshop, SIGNAL(selectionChanged()), this, SLOT(onSelectionChanged()));
  45 }
  46
  47 //********************************************************************
  48 void XGUI_ActiveControlMgr::addSelector(XGUI_ActiveControlSelector* theSelector)
  49 {
  50   mySelectors.append(theSelector);
  51   connect(theSelector, SIGNAL(activated()), this, SLOT(onSelectorActivated()));
  52   connect(theSelector, SIGNAL(deactivated()), this, SLOT(onSelectorDeactivated()));
  53 }
  54
  55 //********************************************************************
  56 XGUI_ActiveControlSelector* XGUI_ActiveControlMgr::getSelector(const QString& theType)
  57 {
  58   XGUI_ActiveControlSelector* aSelector = 0;
  59   for (int i = 0, aCount = mySelectors.count(); i < aCount; i++)
  60   {
  61     if (mySelectors[i]->getType() != theType)
  62       continue;
  63     aSelector = mySelectors[i];
  64     break;
  65   }
  66   return aSelector;
  67 }
  68
  69 //********************************************************************
  70 void XGUI_ActiveControlMgr::onSelectorActivated()
  71 {
  72   XGUI_ActiveControlSelector* aSelector = qobject_cast<XGUI_ActiveControlSelector*>(sender());
  73   if (!aSelector || aSelector == myActiveSelector)
  74     return;
  75
  76   if (myIsBlocked) // we've come here from the same method
  77     return;
  78   myIsBlocked = true;
  79   if (myActiveSelector) {
  80     myActiveSelector->setActive(false);
  81   }
  82   activateSelector(aSelector);
  83   XGUI_Tools::workshop(myWorkshop)->selectionActivate()->updateSelectionModes();
  84   XGUI_Tools::workshop(myWorkshop)->selectionActivate()->updateSelectionFilters();
  85
  86 #ifdef DEBUG_ACTIVE_SELECTOR
  87   debugInfo("onSelectorActivated", myActiveSelector);
  88 #endif
  89   myIsBlocked = false;
  90 }
  91
  92 //********************************************************************
  93 void XGUI_ActiveControlMgr::onSelectorDeactivated()
  94 {
  95   XGUI_ActiveControlSelector* aSelector = qobject_cast<XGUI_ActiveControlSelector*>(sender());
  96   deactivateSelector(aSelector);
  97 }
  98
  99 //********************************************************************
 100 void XGUI_ActiveControlMgr::deactivateSelector(XGUI_ActiveControlSelector* theSelector)
 101 {
 102   if (!theSelector || theSelector != myActiveSelector || !myActiveSelector)
 103     return;
 104
 105   if (myIsBlocked) // we've come here from the same method
 106     return;
 107   myIsBlocked = true;
 108
 109   myActiveSelector->setActive(false);
 110   activateSelector(NULL);
 111
 112   XGUI_ActiveControlSelector* aSelectorToBeActivated = 0;
 113   for (int i = 0, aCount = mySelectors.count(); i < aCount; i++) {
 114     if (!mySelectors[i]->needToBeActivated())
 115       continue;
 116     aSelectorToBeActivated = mySelectors[i];
 117     break;
 118   }
 119   if (aSelectorToBeActivated)
 120     activateSelector(aSelectorToBeActivated);
 121
 122   XGUI_Tools::workshop(myWorkshop)->selectionActivate()->updateSelectionModes();
 123   XGUI_Tools::workshop(myWorkshop)->selectionActivate()->updateSelectionFilters();
 124 #ifdef DEBUG_ACTIVE_SELECTOR
 125   debugInfo("onSelectorDeactivated", myActiveSelector);
 126 #endif
 127   myIsBlocked = false;
 128 }
 129
 130 //********************************************************************
 131 void XGUI_ActiveControlMgr::onSelectionChanged()
 132 {
 133   if (!myActiveSelector)
 134     return;
 135
 136   myActiveSelector->processSelection();
 137 #ifdef DEBUG_ACTIVE_SELECTOR
 138   debugInfo("onSelectionChanged", myActiveSelector);
 139 #endif
 140 }
 141
 142 //********************************************************************
 143 void XGUI_ActiveControlMgr::activateSelector(XGUI_ActiveControlSelector* theSelector)
 144 {
 145   myActiveSelector = theSelector;
 146   if (myActiveSelector)
 147     myActiveSelector->setActive(true);
 148 }