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Thread: QTableView setSortingEnabled not working inFrozen Column Example

  1. 13th February 2015, 07:23 #1
    RameshNani
    RameshNani is offline Novice
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    Default QTableView setSortingEnabled not working inFrozen Column Example

    Hi when i use Frozen Column Example the sorting not working on QTableView . any bodu help me .

    Qt Code: 
    1. #include <QtGui>
    2.  
    3.  #include "freezetablewidget.h"
    4. #include <CustomHeader.h>
    5.  
    6.  FreezeTableWidget::FreezeTableWidget(QAbstractItemModel * model,CustomHeader *m_HeaderN)
    7.  {
    8.        setModel(model);
    9.        frozenTableView = new QTableView(this);
    10.      fcol=1;
    11.      m_header1=new CustomHeader(Qt::Horizontal,this);
    12.              m_header=m_HeaderN;
    13.              m_header->setSortIndicatorShown(true);
    14.              frozenTableView->setSortingEnabled(true);
    15.                      //   frozenTableView->setHorizontalHeader(m_header1);
    16.   //      this->setHorizontalHeader(m_header);
    17.   //   m_header1->setMovable(false);
    18.  
    19.        init();
    20.  
    21.        //connect the headers and scrollbars of both tableviews together
    22.    //    m_header
    23.     //   frozenTableView->setHorizontalHeader(m_header);
    24.        frozenTableView->setAlternatingRowColors(true);
    25.  
    26.        connect(horizontalHeader(),SIGNAL(sectionResized(int,int,int)), this,
    27.                SLOT(updateSectionWidth(int,int,int)));
    28.        connect(verticalHeader(),SIGNAL(sectionResized(int,int,int)), this,
    29.                SLOT(updateSectionHeight(int,int,int)));
    30.  
    31.        connect(frozenTableView->verticalScrollBar(), SIGNAL(valueChanged(int)),
    32.                verticalScrollBar(), SLOT(setValue(int)));
    33.        connect(verticalScrollBar(), SIGNAL(valueChanged(int)),
    34.                frozenTableView->verticalScrollBar(), SLOT(setValue(int)));
    35.  
    36.        connect(frozenTableView, SIGNAL(doubleClicked(const QModelIndex &)),this, SLOT(DoubleClickEmit(const QModelIndex &)));
    37.        connect(m_header1, SIGNAL(searchStringM(int,QString)), this, SLOT(SearchEmit(int,QString)));
    38.        connect(m_header1, SIGNAL(indexOfColumn(int)), this, SLOT(indexOfColumnEmit(int) ));
    39.        //SUPRAJA JAN 20
    40.        connect(m_header1, SIGNAL(unfilterM(int,QString)), this, SLOT( unfilterEmit(int,QString)));
    41.        connect(m_header1, SIGNAL(triggered(QModelIndex)), this, SLOT( sortenab(QModelIndex)));
    42.  
    43.  
    44.  }
    45. void FreezeTableWidget::sortenab(QModelIndex ind)
    46. {
    47.     qDebug()<<"INDEXXXXXXXXXXX"<<ind;
    48.     frozenTableView->sortByColumn(ind.column());
    49. }
    50.  
    51.  FreezeTableWidget::~FreezeTableWidget()
    52.  {
    53.        delete frozenTableView;
    54.  }
    55.  void FreezeTableWidget::SearchEmit(int  aa ,QString  bb)
    56.  {
    57.      emit searchStringM(aa,bb);
    58.  }
    59.  void FreezeTableWidget::indexOfColumnEmit(int aa)
    60. {
    61.      emit indexOfColumn(aa);
    62.  }
    63.  void FreezeTableWidget:: unfilterEmit(int aa ,QString bb)
    64.  {
    65.      emit unfilterM(aa,bb);
    66.  }
    67.  
    68.  void FreezeTableWidget::DoubleClickEmit(const QModelIndex Index)
    69.  {
    70.     qDebug()<<"INDEX IN FROZEN VIEWWWWWWWWWWWWWW"<<Index;
    71.     emit DoubleClickEmitSignal(Index);
    72.  }
    73.  
    74.  void FreezeTableWidget::horizantalHeader_Hide()
    75.  {
    76.     frozenTableView->horizontalHeader()->hide();
    77.  //    QHeaderView *m_header1 = new CustomHeader(Qt::Horizontal);
    78.  //    frozenTableView->setHorizontalHeader(m_header1);
    79.  
    80.  }
    81.  
    82.  
    83.  void FreezeTableWidget::init()
    84.  {
    85.        // <<<<<< Both tables get the same header type
    86.   //     setHorizontalHeader(new CustomHeader(Qt::Horizontal, this));
    87.    //    frozenTableView->setHorizontalHeader(new CustomHeader(Qt::Horizontal, this));
    88.      setHorizontalHeader(m_header);
    89.      frozenTableView->setHorizontalHeader(m_header1);
    90.  
    91.        frozenTableView->setModel(model());
    92.        frozenTableView->setFocusPolicy(Qt::NoFocus);
    93.        frozenTableView->verticalHeader()->hide();
    94.     //   frozenTableView->horizontalHeader()->setSectionResizeMode(QHeaderView::Fixed);
    95.        frozenTableView->horizontalHeader()->setResizeMode(QHeaderView::Fixed);
    96.  
    97.  
    98.        viewport()->stackUnder(frozenTableView);
    99.        horizontalHeader()->stackUnder(frozenTableView); // <<<<<< make sure the header goes under the overlaid view too
    100.  //! [init part1]
    101.  
    102.  //! [init part2]
    103.        frozenTableView->setStyleSheet("QTableView { border: none;"
    104.                                       "background-color: #2e5c7f;"
    105.                                       "alternate-background-color:#B4CFE4;"
    106.                                       "selection-background-color: 2D347B}"); //for demo purposes
    107.  
    108.        //setStyleSheet("background-color:#2e5c7f;"  "alternate-background-color:#B4CFE4;"  "selection-background-color: 2D347B ;" "color:white;" "border-width:0px;" );
    109.     //   frozenTableView->setSelectionModel(selectionModel());
    110.        for (int col = 0; col < model()->columnCount(); ++col)  // <<<<<< hide one less column
    111.            if(col<fcol)
    112.                 frozenTableView->setColumnWidth(col, columnWidth(col) );
    113.                else
    114.                  frozenTableView->setColumnHidden(col, true);
    115.  
    116.       // frozenTableView->setColumnWidth(0, columnWidth(0) );
    117.     //   frozenTableView->setColumnWidth(1, columnWidth(1) );    // <<<<<< match the extra column's width
    118.  //
    119.        frozenTableView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
    120.        frozenTableView->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
    121.  
    122.        frozenTableView->show();
    123.  
    124.        updateFrozenTableGeometry();
    125.  
    126.        setHorizontalScrollMode(ScrollPerPixel);
    127.        setVerticalScrollMode(ScrollPerPixel);
    128.        frozenTableView->setVerticalScrollMode(ScrollPerPixel);
    129.     //    frozenTableView->setSortingEnabled(true);
    130.        qDebug()<<"Is Sorting Enabled"<<frozenTableView->isSortingEnabled ();
    131.  }
    132.  //! [init part2]
    133.  
    134.  
    135.  
    136.  void FreezeTableWidget::updateSectionWidth(int logicalIndex, int /* oldSize */, int newSize)
    137.  {
    138.        if (logicalIndex == 0){
    139.              frozenTableView->setColumnWidth(0, newSize);
    140.              updateFrozenTableGeometry();
    141.        }
    142.  }
    143.  
    144.  void FreezeTableWidget::updateSectionHeight(int logicalIndex, int /* oldSize */, int newSize)
    145.  {
    146.        frozenTableView->setRowHeight(logicalIndex, newSize);
    147.  }
    148.  //! [sections]
    149.  
    150.  
    151.  //! [resize]
    152.  void FreezeTableWidget::resizeEvent(QResizeEvent * event)
    153.  {
    154.        QTableView::resizeEvent(event);
    155.        updateFrozenTableGeometry();
    156.   }
    157.  //! [resize]
    158.  
    159.  
    160.  //! [navigate]
    161.  QModelIndex FreezeTableWidget::moveCursor(CursorAction cursorAction,
    162.                                            Qt::KeyboardModifiers modifiers)
    163.  {
    164.        QModelIndex current = QTableView::moveCursor(cursorAction, modifiers);
    165.  
    166.        if (cursorAction == MoveLeft && current.column() > 0
    167.                && visualRect(current).topLeft().x() < frozenTableView->columnWidth(0) ){
    168.              const int newValue = horizontalScrollBar()->value() + visualRect(current).topLeft().x()
    169.                                   - frozenTableView->columnWidth(0);
    170.              horizontalScrollBar()->setValue(newValue);
    171.        }
    172.        return current;
    173.  }
    174.  //! [navigate]
    175.  
    176.  void FreezeTableWidget::scrollTo (const QModelIndex & index, ScrollHint hint){
    177.      if (index.column() > 0)
    178.          QTableView::scrollTo(index, hint);
    179.  }
    180.  
    181.  //! [geometry]
    182.  void FreezeTableWidget::updateFrozenTableGeometry()
    183.  {
    184.      int Hwidth=0;
    185.      for(int i=0;i<fcol;i++)
    186.      {
    187.          Hwidth=Hwidth+columnWidth(i);
    188.      }
    189.        frozenTableView->setGeometry(verticalHeader()->width() + frameWidth(), frameWidth(),
    190.                                     Hwidth,  // <<<<<< the width of the two visible columns
    191.                                     viewport()->height()+horizontalHeader()->height());
    192.  }
    193.  //! [geometry]
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  2. 13th February 2015, 10:39 #2
    StrikeByte
    StrikeByte is offline Intermediate user
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    Default Re: QTableView setSortingEnabled not working inFrozen Column Example

    Try adding a QSortFilterProxyModel then it should work
    QAbstractItemModel has an empty sort() function
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