src/SHAPERGUI/SHAPERGUI_NestedButton.cpp

   1 /*
   2  * SHAPERGUI_NestedButton.cpp
   3  *
   4  *  Created on: Apr 13, 2015
   5  *      Author: sbh
   6  */
   7
   8 #include <SHAPERGUI_NestedButton.h>
   9
  10 #include <QAction>
  11 #include <QFrame>
  12 #include <QHBoxLayout>
  13 #include <QToolButton>
  14 #include <QToolBar>
  15 #include <QEvent>
  16
  17 SHAPERGUI_NestedButton::SHAPERGUI_NestedButton(QObject* theParent,
  18                                            const QList<QAction*>& theNestedActions)
  19 : QWidgetAction(theParent),
  20   myNestedActions(theNestedActions),
  21   myAdditionalButtonsWidget(0),
  22   myButtonFrame(0),
  23   myThisButton(0)
  24 {
  25 }
  26
  27 SHAPERGUI_NestedButton::~SHAPERGUI_NestedButton()
  28 {
  29 }
  30
  31 void SHAPERGUI_NestedButton::showAdditionalButtons(bool isShow)
  32 {
  33   myAdditionalButtonsWidget->setVisible(isShow);
  34   if (isShow) {
  35     myButtonFrame->setFrameStyle(QFrame::WinPanel);
  36     myButtonFrame->setFrameShadow(QFrame::Sunken);
  37     myThisButton->setAutoRaise(false);
  38   } else {
  39     myButtonFrame->setFrameStyle(QFrame::NoFrame);
  40     myButtonFrame->setFrameShadow(QFrame::Plain);
  41     myThisButton->setAutoRaise(true);
  42   }
  43 }
  44
  45 QWidget * SHAPERGUI_NestedButton::createWidget(QWidget * theParent)
  46 {
  47   // the action has widget only in tool bar, in menu bar, the default
  48   // action presentation is shown
  49   QToolBar* aToolBar = dynamic_cast<QToolBar*>(theParent);
  50   if (!aToolBar)
  51     return 0;
  52
  53   myButtonFrame = new QFrame(theParent);
  54   QHBoxLayout* aBoxLay = new QHBoxLayout(myButtonFrame);
  55   aBoxLay->setContentsMargins(2, 0, 0, 0);
  56   aBoxLay->setSpacing(1);
  57   QSizePolicy aSizePolicy;
  58   aSizePolicy.setControlType(QSizePolicy::ToolButton);
  59   myButtonFrame->setSizePolicy(aSizePolicy);
  60
  61   myThisButton = new QToolButton(myButtonFrame);
  62   myThisButton->setDefaultAction(this);
  63   myThisButton->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
  64   aBoxLay->addWidget(myThisButton, 1);
  65
  66   myAdditionalButtonsWidget = new QWidget(myButtonFrame);
  67   QHBoxLayout* aAdditionalBoxLay = new QHBoxLayout(myAdditionalButtonsWidget);
  68   aAdditionalBoxLay->setContentsMargins(0, 0, 0, 0);
  69   aAdditionalBoxLay->setSpacing(1);
  70   foreach (QAction* eachAct, myNestedActions) {
  71     QToolButton* aButton = new QToolButton(myButtonFrame);
  72     aButton->setDefaultAction(eachAct);
  73     aButton->setAutoRaise(true);
  74     aAdditionalBoxLay->addWidget(aButton);
  75   }
  76   myAdditionalButtonsWidget->setLayout(aAdditionalBoxLay);
  77   aBoxLay->addWidget(myAdditionalButtonsWidget);
  78
  79   myButtonFrame->setLayout(aBoxLay);
  80
  81   showAdditionalButtons(false);
  82   connect(this, SIGNAL(toggled(bool)), this, SLOT(showAdditionalButtons(bool)));
  83   connect(this, SIGNAL(changed()), this, SLOT(actionStateChanged()));
  84   return myButtonFrame;
  85 }
  86
  87 bool SHAPERGUI_NestedButton::event(QEvent* theEvent)
  88 {
  89   if (theEvent->type() == QEvent::ActionChanged) {
  90     if (myThisButton) {
  91       myThisButton->setEnabled(isEnabled());
  92       return true;
  93     }
  94   }
  95   return QWidgetAction::event(theEvent);
  96 }
  97
  98
  99 void SHAPERGUI_NestedButton::actionStateChanged()
 100 {
 101   if (isEnabled()) {
 102     QString s = "true";
 103   } else {
 104     QString s = "false";
 105   }
 106
 107 }