src/XGUI/XGUI_HistoryMenu.cpp

   1 /*
   2  * XGUI_HistoryMenu.cpp
   3  *
   4  *  Created on: Feb 2, 2015
   5  *      Author: sbh
   6  */
   7
   8 #include <XGUI_HistoryMenu.h>
   9
  10 #include <ModelAPI_Session.h>
  11
  12 #include <QListWidget>
  13 #include <QWidgetAction>
  14 #include <QToolButton>
  15 #include <QAction>
  16
  17 XGUI_HistoryMenu::XGUI_HistoryMenu(QAction* theParent)
  18  : QMenu(NULL),
  19    myHistoryList(NULL)
  20 {
  21   theParent->setMenu(this);
  22   initMenu();
  23
  24   connect(theParent, SIGNAL(destroyed()), this, SLOT(deleteLater()));
  25 }
  26
  27 XGUI_HistoryMenu::XGUI_HistoryMenu(QToolButton* theParent)
  28  : QMenu(theParent),
  29    myHistoryList(NULL)
  30 {
  31   theParent->setMenu(this);
  32   theParent->setPopupMode(QToolButton::MenuButtonPopup);
  33
  34   initMenu();
  35 }
  36
  37 void XGUI_HistoryMenu::initMenu()
  38 {
  39   myHistoryList = new QListWidget(this);
  40   QWidgetAction* aListAction = new QWidgetAction(this);
  41   aListAction->setDefaultWidget(myHistoryList);
  42   this->addAction(aListAction);
  43   myHistoryList->setMouseTracking(true);  // track mouse hover
  44   myHistoryList->setSelectionMode(QAbstractItemView::ExtendedSelection);
  45   connect(myHistoryList, SIGNAL(itemEntered(QListWidgetItem *)), this,
  46           SLOT(setStackSelectedTo(QListWidgetItem *)));
  47   connect(myHistoryList, SIGNAL(itemClicked(QListWidgetItem *)), this,
  48           SLOT(onItemPressed(QListWidgetItem *)));
  49 }
  50
  51 XGUI_HistoryMenu::~XGUI_HistoryMenu()
  52 {
  53 }
  54
  55 void XGUI_HistoryMenu::setHistory(const QList<ActionInfo>& theActions)
  56 {
  57   myHistoryList->clear();
  58   foreach(ActionInfo anAct, theActions) {
  59     QListWidgetItem* anItem = new QListWidgetItem(anAct.icon, anAct.text, myHistoryList);
  60   }
  61 }
  62
  63 void XGUI_HistoryMenu::leaveEvent(QEvent* theEvent)
  64 {
  65   setStackSelectedTo(NULL);
  66   QMenu::leaveEvent(theEvent);
  67 }
  68
  69 void XGUI_HistoryMenu::setStackSelectedTo(QListWidgetItem * theItem)
  70 {
  71   QListWidgetItem* eachItem = NULL;
  72   bool isSelect = theItem != NULL;
  73   for(int aRow = 0; aRow < myHistoryList->count(); ++aRow) {
  74     eachItem = myHistoryList->item(aRow);
  75     myHistoryList->setItemSelected(eachItem, isSelect);
  76     // Deselect items below hovered
  77     if (eachItem == theItem) {
  78       isSelect = false;
  79     }
  80   }
  81   // to avoid blinking caused by QMenu paint event (paints on top of the list)
  82   myHistoryList->repaint();
  83 }
  84
  85 void hideUpToMenuBar( QMenu* theMenu )
  86 {
  87   theMenu->hide();
  88   foreach( QWidget* aWidget, theMenu->menuAction()->associatedWidgets() )
  89   {
  90     QMenu* aMenu = qobject_cast<QMenu*>( aWidget );
  91     if( aMenu )
  92     {
  93       aMenu->hide();
  94       hideUpToMenuBar( aMenu );
  95     }
  96   }
  97 }
  98
  99 void XGUI_HistoryMenu::onItemPressed(QListWidgetItem * theItem)
 100 {
 101   int selectedSize = myHistoryList->row(theItem) + 1;
 102   emit actionSelected(selectedSize);
 103   hideUpToMenuBar( this );
 104 }