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  1. 1st February 2008, 09:34 #1
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    aamer4yu
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    Default Re: how to show popup on mouse right click on a cell of table widget

    Can we see the code ?
    You seem to be using a menu pointer from various places. Without code its hard to say what wrong are u doing.
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  2. 1st February 2008, 09:44 #2
    jpn
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    Default Re: how to show popup on mouse right click on a cell of table widget

    It's called "context menu". See this post. Same approach works for table widget.
    J-P Nurmi
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  3. 4th February 2008, 04:55 #3
    pratyaksh
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    Default Re: how to show popup on mouse right click on a cell of table widget

    Qt Code: 
    1. #include<QtGui>
    2. #include<QPushButton>
    3. #include"newform.h"
    4. #include<iostream>
    5. #include<QString>
    6. #include<QTableWidget>
    7. #include<QWidget>
    8. #include<QAction>
    9. #include<QMenu>
    10. #include<Qt>
    11.  
    12. using namespace std;
    13.  
    14.  
    15. Form::Form(QWidget *parent):QWidget(parent)
    16. {
    17.  
    18. 	setupUi(this);
    19.     //connect(this,SIGNAL(rightClick()),this,SLOT(itemClicked()));
    20.  
    21.     //connect(this,SIGNAL(rc(QMouseEvent *)),tableWidget,SLOT(mousePressEvent(QMouseEvent *)));
    22.     //connect(this,SIGNAL(cellClicked(int,int)),this,SLOT(mousePressEvent(QMouseEvent *)));
    23.    cout<<"\nconstructor called\n";
    24.    // if(count==1)
    25.     //{
    26.    // Form::createActions();
    27.    // Form::setupContextMenu();
    28.     //}
    29.     //setCentralWidget(table);
    30.     //mousePressEvent(e);
    31. }
    32.  /*Form::Form(int n)
    33. {
    34.   setupUi(this);
    35.   count=n;
    36.  // connect(tableWidget,SIGNAL(cellClicked(int,int)),this,SLOT(mouseClick()));
    37.   if(count==1)
    38.     {
    39.     Form::createActions();
    40.     Form::setupContextMenu();
    41.     }
    42. }*/
    43.  void Form::mouseClick()
    44. {
    45.    // count=1;
    46.      // Form fm;
    47.     Form::createActions();
    48.     Form::setupContextMenu();
    49. }
    50.  
    51. void Form::display()
    52. {  
    53.  
    54.        int no_of_row;
    55.        int no_of_column;     
    56.        cout<<"\n"<<"test56767"<<endl;
    57.        no_of_column = tableWidget->columnCount ();
    58.        no_of_row = tableWidget->rowCount () ;
    59.        cout<<"\n  ROW  "<<no_of_row<<endl;
    60.        cout<<"\n Column "<<no_of_column<<endl;
    61.  
    62.        //tableWidget->clear ();
    63.        //tableWidget->removeColumn(no_of_column);
    64.        for(int k=no_of_row;k>=0;k--)
    65.        {
    66.           cout<<"\t " <<k; 
    67.           tableWidget->removeRow (k);
    68.  
    69.        }
    70.        cout<<"\n";
    71.        for(int j=0;j<100;j++)
    72.        {
    73.           tableWidget->insertRow(j);
    74.           for(int i=0;i<20;i++)
    75.           {
    77.              if(i==0)
    78.              {  
    79.                newItem->setText("0");
    80.                tableWidget->setItem(j,i,newItem);
    81.              }
    82.              if(i==1)
    83.              {
    84.                newItem->setText("1");
    85.                tableWidget->setItem(j,i,newItem);
    86.              }
    87.              if(i==2)
    88.              {
    89.                newItem->setText("2");
    90.                tableWidget->setItem(j,i,newItem);
    91.              }
    92.              if(i==3)
    93.              {   
    94.                 newItem->setText("3"); 
    95.                 tableWidget->setItem(j,i,newItem);
    96.              }
    97.              if(i==4)
    98.              {
    99.                 newItem->setText("4");
    100.                 tableWidget->setItem(j,i,newItem);
    101.              } 
    102.              if(i==5)
    103.              {
    104.                 newItem->setText("5");
    105.                 tableWidget->setItem(j,i,newItem);
    106.              }
    107.              if(i==6)
    108.              {
    109.                 newItem->setText("6");
    110.                 tableWidget->setItem(j,i,newItem);
    111.              }
    112.              if(i==7)
    113.              {
    114.                 newItem->setText("7");
    115.                 tableWidget->setItem(j,i,newItem);
    116.              }
    117.              if(i==8)
    118.              {
    119.                 newItem->setText("8");
    120.                 tableWidget->setItem(j,i,newItem);
    121.              }
    122.              if(i==9)
    123.              {
    124.                 newItem->setText("9");
    125.                 tableWidget->setItem(j,i,newItem);
    126.              }
    127.              if(i==10)
    128.              {
    129.                 newItem->setText("10");
    130.                 tableWidget->setItem(j,i,newItem);
    131.              }
    132.              if(i==11)
    133.              {
    134.                 newItem->setText("11");
    135.                 tableWidget->setItem(j,i,newItem);
    136.              }
    137.              if(i==12)
    138.              {
    139.                 newItem->setText("12");
    140.                 tableWidget->setItem(j,i,newItem);
    141.              }
    142.              if(i==13)
    143.              {
    144.                 newItem->setText("13");
    145.                 tableWidget->setItem(j,i,newItem);
    146.              }
    147.              if(i==14)
    148.              {
    149.                 newItem->setText("14");
    150.                 tableWidget->setItem(j,i,newItem);
    151.              }
    152.              if(i==15)
    153.              {
    154.                 newItem->setText("15");
    155.                 tableWidget->setItem(j,i,newItem);
    156.              }
    157.              if(i==16)
    158.              {
    159.                 newItem->setText("16");
    160.                 tableWidget->setItem(j,i,newItem);
    161.              }
    162.              if(i==17)
    163.              {
    164.                 newItem->setText("17");
    165.                 tableWidget->setItem(j,i,newItem);
    166.              }
    167.              if(i==18)
    168.              {
    169.                 newItem->setText("18");
    170.                 tableWidget->setItem(j,i,newItem);
    171.              }
    172.              if(i==19)
    173.              {
    174.                 newItem->setText("19");
    175.                 tableWidget->setItem(j,i,newItem);
    176.              }
    177.         }
    178.  
    179.    }
    180.    //emit rightClick(tableWidget->grabMouse());  
    181. } 
    182. void Form::mclick()
    183. {
    184.        QMenu *contextMenu = new QMenu ( this );
    185.        QMenu *subMenu = new QMenu ( this );
    186.        Q_CHECK_PTR (contextMenu);
    187.        Q_CHECK_PTR (subMenu);
    188.  
    189.        subMenu=contextMenu->addMenu ( "Math Opr.");
    190.  
    191.        subMenu->addAction(cell_addAction);
    192.        subMenu->addAction(cell_subAction);
    193.        subMenu->addAction(cell_mulAction);
    194.        subMenu->addAction(cell_divAction);
    195.        subMenu->addAction(cell_sumAction); 
    196.        contextMenu->addAction(firstSeparator);
    197.        contextMenu->addAction(colorAction);
    198.        contextMenu->addAction(fontAction);
    199.        contextMenu->addAction(secondSeparator);
    200.        contextMenu->addAction(clearAction);
    201.  
    202.        pb3->setMenu(contextMenu); 
    203.  
    204.        //contextMenu->popup(QCursor::pos());
    205.        //contextMenu->exec ();
    206.  
    207.       //setContextMenuPolicy(Qt::ActionsContextMenu);
    208.  
    209. }
    210.  
    211. void Form::del()
    212. {
    213.    {   delete cell_addAction;
    214.        delete cell_subAction;
    215.        delete cell_mulAction;
    216.        delete cell_divAction;
    217.        delete cell_sumAction;
    218.        delete firstSeparator;
    219.        delete colorAction;
    220.        delete fontAction;
    221.        delete secondSeparator;
    222.        delete clearAction;
    223.    }
    224.  
    225. }
    226.  
    227. void Form::mousePressEvent(QMouseEvent *event)
    228. { 
    229.    if(count==1)
    230.   {
    231.      del();
    232.      count=0;
    233.   }
    234.     // cout<<"\n"<<"testmousepressevent455"<<endl;
    235.      if(event->button() == Qt::LeftButton)
    236.      {
    237.         //QString test = QString(event->x()) + ", " + QString(event->y());
    238.         QMessageBox::warning( this, tr("Position"), tr( "Left Button Pressed" ) );
    239.      }
    240.  
    241.      else if(event->button() == Qt::RightButton)
    242.      {
    243.         //emit rightClick();
    244.         //setupContextMenu();
    245.        // Form frm;
    246.         QMessageBox::warning( this, tr("Position"), tr( "Right Button Pressed" ) );
    247.      }
    248.  
    249. }
    250.  
    251.  
    252.  
    253.  
    254. void Form::createActions()
    255. {
    256.     count =1;
    257.     cell_sumAction = new QAction(tr("Sum"), this);
    258.     connect(cell_sumAction, SIGNAL(triggered()), this, SLOT(actionSum()));
    259.  
    260.     cell_addAction = new QAction(tr("&Add"), this);
    261.     cell_addAction->setShortcut(Qt::CTRL | Qt::Key_Plus);
    262.     connect(cell_addAction, SIGNAL(triggered()), this, SLOT(actionAdd()));
    263.  
    264.     cell_subAction = new QAction(tr("&Subtract"), this);
    265.     cell_subAction->setShortcut(Qt::CTRL | Qt::Key_Minus);
    266.     connect(cell_subAction, SIGNAL(triggered()), this, SLOT(actionSubtract()));
    267.  
    268.     cell_mulAction = new QAction(tr("&Multiply"), this);
    269.     cell_mulAction->setShortcut(Qt::CTRL | Qt::Key_multiply);
    270.     connect(cell_mulAction, SIGNAL(triggered()), this, SLOT(actionMultiply()));
    271.  
    272.     cell_divAction = new QAction(tr("&Divide"), this);
    273.     cell_divAction->setShortcut(Qt::CTRL | Qt::Key_division);
    274.     connect(cell_divAction, SIGNAL(triggered()), this, SLOT(actionDivide()));
    275.  
    276.     fontAction = new QAction(tr("Font..."), this);
    277.     fontAction->setShortcut(Qt::CTRL|Qt::Key_F);
    278.     connect(fontAction, SIGNAL(triggered()), this, SLOT(selectFont()));
    279.  
    280.     colorAction = new QAction(QPixmap(16, 16), tr("Background &Color..."), this);
    281.     connect(colorAction, SIGNAL(triggered()), this, SLOT(selectColor()));
    282.  
    283.     clearAction = new QAction(tr("Clear"), this);
    284.     clearAction->setShortcut(Qt::Key_Delete);
    285.     connect(clearAction, SIGNAL(triggered()), this, SLOT(clear()));
    286.  
    287.  
    288.     exitAction = new QAction(tr("E&xit"), this);
    289.     connect(exitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
    290.  
    291.     firstSeparator = new QAction(this);
    292.     firstSeparator->setSeparator(true);
    293.  
    294.     secondSeparator = new QAction(this);
    295.     secondSeparator->setSeparator(true);
    296.  
    297.  
    298. }
    299.  
    300. void Form::actionSum()
    301. {
    302.  
    303.     int row_first = 0;
    304.     int row_last = 0;
    305.     int row_cur = 0;
    306.  
    307.     int col_first = 0;
    308.     int col_last = 0;
    309.     int col_cur = 0;
    310.  
    311.  
    312. }
    313.  
    314.  
    315.  
    316. void Form::actionMath_helper(const QString &title, const QString &op)
    317. {
    318.  
    319.     QString cell1 = "C1";
    320.     QString cell2 = "C2";
    321.     QString out = "C3";
    322.     //QTableWidgetItem *current = tableWidget->currentItem();
    323.  
    324. }
    325.  
    326.  
    327. void Form::actionAdd()
    328. {
    329.     actionMath_helper(tr("Addition"), "+");
    330. }
    331.  
    332. void Form::actionSubtract()
    333. {
    334.     actionMath_helper(tr("Subtraction"), "-");
    335. }
    336.  
    337. void Form::actionMultiply()
    338. {
    339.     actionMath_helper(tr("Multiplication"), "*");
    340. }
    341.  
    342. void Form::actionDivide()
    343. {
    344.     actionMath_helper(tr("Division"), "/");
    345. }
    346.  
    347.  
    348. void Form::clear()
    349. {
    350.         foreach (QTableWidgetItem *i, tableWidget->selectedItems())
    351.         i->setText("");
    352. }
    353.  
    354.  
    355. void Form::setupContextMenu()
    356. {
    357.  
    358.  
    359.       addAction(cell_addAction);
    360.       addAction(cell_subAction);
    361.       addAction(cell_mulAction);
    362.       addAction(cell_divAction);
    363.       addAction(cell_sumAction);
    364.       addAction(firstSeparator);
    365.       addAction(colorAction);
    366.       addAction(fontAction);
    367.       addAction(secondSeparator);
    368.       addAction(clearAction);
    369.       setContextMenuPolicy(Qt::ActionsContextMenu);
    370. }
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    Last edited by jpn; 4th February 2008 at 06:05. Reason: missing [code] tags
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  4. 4th February 2008, 06:16 #4
    jpn
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    Default Re: how to show popup on mouse right click on a cell of table widget

    You didn't check out the example, did you?
    • Please use [code]-tags for small code blocks
    • Please attach large code blocks as files
    • Please post only parts of code that are relevant to the problem
    J-P Nurmi
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