src/XGUI/XGUI_ActiveControlMgr.cpp

   1 // Copyright (C) 2014-2017  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
  18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
  19 //
  20
  21 #include "XGUI_ActiveControlMgr.h"
  22 #include "XGUI_ActiveControlSelector.h"
  23 #include "XGUI_SelectionActivate.h"
  24 #include "XGUI_SelectionMgr.h"
  25 #include "XGUI_Tools.h"
  26 #include "XGUI_Workshop.h"
  27
  28 #include <ModuleBase_IModule.h>
  29 #include <ModuleBase_IWorkshop.h>
  30
  31 //#define DEBUG_ACTIVE_SELECTOR
  32
  33 #ifdef DEBUG_ACTIVE_SELECTOR
  34 void debugInfo(const QString& theMessage, XGUI_ActiveControlSelector* theSelector)
  35 {
  36   std::cout << theMessage.toStdString().c_str() << ", active: "
  37     << (theSelector ? theSelector->getType().toStdString().c_str() : "NULL") << std::endl;
  38 }
  39 #endif
  40
  41 //********************************************************************
  42 XGUI_ActiveControlMgr::XGUI_ActiveControlMgr(ModuleBase_IWorkshop* theWorkshop)
  43 : myWorkshop(theWorkshop), myActiveSelector(0), myIsBlocked(false)
  44 {
  45   connect(myWorkshop, SIGNAL(selectionChanged()), this, SLOT(onSelectionChanged()));
  46 }
  47
  48 //********************************************************************
  49 void XGUI_ActiveControlMgr::addSelector(XGUI_ActiveControlSelector* theSelector)
  50 {
  51   mySelectors.append(theSelector);
  52   connect(theSelector, SIGNAL(activated()), this, SLOT(onSelectorActivated()));
  53   connect(theSelector, SIGNAL(deactivated()), this, SLOT(onSelectorDeactivated()));
  54 }
  55
  56 //********************************************************************
  57 XGUI_ActiveControlSelector* XGUI_ActiveControlMgr::getSelector(const QString& theType)
  58 {
  59   XGUI_ActiveControlSelector* aSelector;
  60   for (int i = 0, aCount = mySelectors.count(); i < aCount; i++)
  61   {
  62     if (mySelectors[i]->getType() != theType)
  63       continue;
  64     aSelector = mySelectors[i];
  65     break;
  66   }
  67   return aSelector;
  68 }
  69
  70 //********************************************************************
  71 void XGUI_ActiveControlMgr::onSelectorActivated()
  72 {
  73   XGUI_ActiveControlSelector* aSelector = qobject_cast<XGUI_ActiveControlSelector*>(sender());
  74   if (!aSelector || aSelector == myActiveSelector)
  75     return;
  76
  77   if (myIsBlocked) // we've come here from the same method
  78     return;
  79   myIsBlocked = true;
  80   if (myActiveSelector) {
  81     myActiveSelector->setActive(false);
  82   }
  83   activateSelector(aSelector);
  84   XGUI_Tools::workshop(myWorkshop)->selectionActivate()->updateSelectionModes();
  85   XGUI_Tools::workshop(myWorkshop)->selectionActivate()->updateSelectionFilters();
  86
  87 #ifdef DEBUG_ACTIVE_SELECTOR
  88   debugInfo("onSelectorActivated", myActiveSelector);
  89 #endif
  90   myIsBlocked = false;
  91 }
  92
  93 //********************************************************************
  94 void XGUI_ActiveControlMgr::onSelectorDeactivated()
  95 {
  96   XGUI_ActiveControlSelector* aSelector = qobject_cast<XGUI_ActiveControlSelector*>(sender());
  97   if (!aSelector || aSelector != myActiveSelector || !myActiveSelector)
  98     return;
  99
 100   if (myIsBlocked) // we've come here from the same method
 101     return;
 102   myIsBlocked = true;
 103
 104   myActiveSelector->setActive(false);
 105   activateSelector(NULL);
 106
 107   XGUI_ActiveControlSelector* aSelectorToBeActivated = 0;
 108   for (int i = 0, aCount = mySelectors.count(); i < aCount; i++)
 109   {
 110     if (!mySelectors[i]->needToBeActiated())
 111       continue;
 112     aSelectorToBeActivated = mySelectors[i];
 113     break;
 114   }
 115   if (aSelectorToBeActivated)
 116     activateSelector(aSelectorToBeActivated);
 117
 118   XGUI_Tools::workshop(myWorkshop)->selectionActivate()->updateSelectionModes();
 119   XGUI_Tools::workshop(myWorkshop)->selectionActivate()->updateSelectionFilters();
 120 #ifdef DEBUG_ACTIVE_SELECTOR
 121   debugInfo("onSelectorDeactivated", myActiveSelector);
 122 #endif
 123   myIsBlocked = false;
 124 }
 125
 126 //********************************************************************
 127 void XGUI_ActiveControlMgr::onSelectionChanged()
 128 {
 129   if (!myActiveSelector)
 130     return;
 131
 132   myActiveSelector->processSelection();
 133 #ifdef DEBUG_ACTIVE_SELECTOR
 134   debugInfo("onSelectionChanged", myActiveSelector);
 135 #endif
 136 }
 137
 138 //********************************************************************
 139 void XGUI_ActiveControlMgr::activateSelector(XGUI_ActiveControlSelector* theSelector)
 140 {
 141   myActiveSelector = theSelector;
 142   if (myActiveSelector)
 143     myActiveSelector->setActive(true);
 144 }