QTableView and custom QHeaderView: header not showing

[xyfix]

Edited:

guys,

I want to use this http://qt-apps.org/content/show.php/...content=103154 in my app. So I included the files and placed some code in my model class ( the code that's actually in example1.cpp ). But I no header is shown. And when I don't use QHeaderView but only the reimplemented headerData function from QAbstractTableModel I get my header. This is my code:

mymodel.h:

#ifndef TABLEMODEL_H
#define TABLEMODEL_H
 
#include "tabledata.h"
 
#include <QAbstractTableModel>
#include <QModelIndex>
#include <QStandardItemModel>
#include <QVariant>
 
typedef std::list< std::pair < HeaderData, std::vector< std::string > > > dataMap;
 
class TABLEModel : public QAbstractTableModel
{
  Q_OBJECT
 
public:
    TABLEModel( QObject* Qparent = 0 );
    TABLEModel( QObject* Qparent, TABLEData* tableData );
 
    ~TABLEModel();
    void fillHeaderModel();
    QVariant data( const QModelIndex &indexQ, int role ) const;
    QVariant  headerData(int section, Qt::Orientation orientation,
             int role = Qt::DisplayRole ) const;
 
}

#ifndef TABLEMODEL_H
#define TABLEMODEL_H

#include "tabledata.h"

#include <QAbstractTableModel>
#include <QModelIndex>
#include <QStandardItemModel>
#include <QVariant>

typedef std::list< std::pair < HeaderData, std::vector< std::string > > > dataMap;

class TABLEModel : public QAbstractTableModel
{
  Q_OBJECT

public:
    TABLEModel( QObject* Qparent = 0 );
    TABLEModel( QObject* Qparent, TABLEData* tableData );

    ~TABLEModel();
    void fillHeaderModel();
    QVariant data( const QModelIndex &indexQ, int role ) const;
    QVariant  headerData(int section, Qt::Orientation orientation,
             int role = Qt::DisplayRole ) const;

}

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mymodel.cpp:

TABLEModel::TABLEModel( QObject *parentQ, TABLEData* tableData )
  : QAbstractTableModel( parentQ ), m_tableData( tableData )
{
  setColumnCount( m_tableData->getTable()->getColumnCount());
  fillHeaderModel();
}
 
QVariant TABLEModel::data( const QModelIndex &indexQ, int role ) const
{
  if( role == HierarchicalHeaderView::HorizontalHeaderDataRole )
  {
    QVariant v;
    v.setValue(( QObject* )& m_horizontalHeaderModel );
    return v;
  }
 
  if(role==HierarchicalHeaderView::VerticalHeaderDataRole)
  {
    QVariant v;
    v.setValue((QObject*)& m_verticalHeaderModel);
    return v;
  }
 
  if( role == Qt::DisplayRole && indexQ.isValid())
  {
    return QString( m_tableData->getParameterData( indexQ.column(), indexQ.row()).c_str());
  }
 
  return QVariant();
}
 
void TABLEModel::fillHeaderModel()
{
   QStandardItem* rootItem = new QStandardItem("root");
   QList<QStandardItem*> l;
 
   QStandardItem* cell=new QStandardItem("level 2");
   l.push_back(cell);
   rootItem->appendColumn(l);
 
   l.clear();
 
   l.push_back(new QStandardItem("level 2"));
   rootItem->appendColumn(l);
 
   l.clear();
 
   m_horizontalHeaderModel.setItem( 0, 0, rootItem );
}
 
QVariant TABLEModel::headerData(int section, Qt::Orientation orientation, int role ) const
{
  if( role != Qt::DisplayRole )
       return QVariant();
 
  if( orientation == Qt::Horizontal )
  {
    QString data( m_tableData->getColumns()[ section ]->getLabel().c_str());
 
    return data;
  }
 
  return QVariant();
 
}

TABLEModel::TABLEModel( QObject *parentQ, TABLEData* tableData )
  : QAbstractTableModel( parentQ ), m_tableData( tableData )
{
  setColumnCount( m_tableData->getTable()->getColumnCount());
  fillHeaderModel();
}

QVariant TABLEModel::data( const QModelIndex &indexQ, int role ) const
{
  if( role == HierarchicalHeaderView::HorizontalHeaderDataRole )
  {
    QVariant v;
    v.setValue(( QObject* )& m_horizontalHeaderModel );
    return v;
  }

  if(role==HierarchicalHeaderView::VerticalHeaderDataRole)
  {
    QVariant v;
    v.setValue((QObject*)& m_verticalHeaderModel);
    return v;
  }

  if( role == Qt::DisplayRole && indexQ.isValid())
  {
    return QString( m_tableData->getParameterData( indexQ.column(), indexQ.row()).c_str());
  }

  return QVariant();
}

void TABLEModel::fillHeaderModel()
{
   QStandardItem* rootItem = new QStandardItem("root");
   QList<QStandardItem*> l;

   QStandardItem* cell=new QStandardItem("level 2");
   l.push_back(cell);
   rootItem->appendColumn(l);

   l.clear();

   l.push_back(new QStandardItem("level 2"));
   rootItem->appendColumn(l);

   l.clear();

   m_horizontalHeaderModel.setItem( 0, 0, rootItem );
}

QVariant TABLEModel::headerData(int section, Qt::Orientation orientation, int role ) const
{
  if( role != Qt::DisplayRole )
       return QVariant();

  if( orientation == Qt::Horizontal )
  {
    QString data( m_tableData->getColumns()[ section ]->getLabel().c_str());

    return data;
  }

  return QVariant();

}

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dialog.h:

#ifndef DIALOGTABLE_H
#define DIALOGTABLE_H
 
#include "tabledata.h"
#include "tabletable.h"
 
#include "dialogparameterdialog.h"
 
#include <QDialog>
#include <QTableView>
 
class TABLEModel;
 
class DIALOGTable : public DIALOGParameterDialog
{
   Q_OBJECT
 
public:
   DIALOGTable( TABLETable &table, QWidget *parent = 0 );
 
private slots:
    void slotCreateTable();
 
private:
    QTableView* m_view;

#ifndef DIALOGTABLE_H
#define DIALOGTABLE_H

#include "tabledata.h"
#include "tabletable.h"

#include "dialogparameterdialog.h"

#include <QDialog>
#include <QTableView>

class TABLEModel;

class DIALOGTable : public DIALOGParameterDialog
{
   Q_OBJECT

public:
   DIALOGTable( TABLETable &table, QWidget *parent = 0 );

private slots:
    void slotCreateTable();

private:
    QTableView* m_view;

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dialog.cpp:

DIALOGTable::DIALOGTable( TABLETable &table, QWidget *parentW )
  :DIALOGParameterDialog( table, parentW, ), m_table( table )
{
   m_view = new QTableView( this );
}
 
void DIALOGTable::slotCreateTable()
{
    HierarchicalHeaderView* hv = new HierarchicalHeaderView( Qt::Horizontal, m_view );
    hv->setHighlightSections( true );
    hv->setClickable( true );
    hv->setMovable(true);
    m_view->setHorizontalHeader( hv );
 
    TABLEModel* model = new TABLEModel( this, m_tableData );
    model->setRowCount( 0 ); //this is because I only want to show the header at first
 
     m_view->setModel( model );
     m_view->resizeColumnsToContents();
     m_view->resizeRowsToContents();
     m_view->show();
}

DIALOGTable::DIALOGTable( TABLETable &table, QWidget *parentW )
  :DIALOGParameterDialog( table, parentW, ), m_table( table )
{
   m_view = new QTableView( this );
}

void DIALOGTable::slotCreateTable()
{
    HierarchicalHeaderView* hv = new HierarchicalHeaderView( Qt::Horizontal, m_view );
    hv->setHighlightSections( true );
    hv->setClickable( true );
    hv->setMovable(true);
    m_view->setHorizontalHeader( hv );

    TABLEModel* model = new TABLEModel( this, m_tableData );
    model->setRowCount( 0 ); //this is because I only want to show the header at first

     m_view->setModel( model );
     m_view->resizeColumnsToContents();
     m_view->resizeRowsToContents();
     m_view->show();
}

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class HeaderData
{
public:
      HeaderData(){};
   ~HeaderData(){};
 
public:
   const std::string&
     getLabel() const
     {
       return m_label;
     }
 
     void
     setLabel( const std::string& label )
     {
       m_label = label;
     }
 
     const std::string&
     getUnit() const
     {
       return m_unit;
     }
 
     void
     setUnit( const std::string& unit )
     {
       m_unit = unit;
     }
 
     const std::vector< std::string >&
     getSubLabel() const
     {
       return m_subLabel;
     }
 
     void
     setSubLabel( const std::vector< std::string >& subLabel )
     {
       m_subLabel = subLabel;
     }
 
private:
     std::string m_label;
     std::string m_unit;
     std::vector< std::string > m_subLabel;
  };

class HeaderData
{
public:
      HeaderData(){};
   ~HeaderData(){};

public:
   const std::string&
     getLabel() const
     {
       return m_label;
     }

     void
     setLabel( const std::string& label )
     {
       m_label = label;
     }

     const std::string&
     getUnit() const
     {
       return m_unit;
     }

     void
     setUnit( const std::string& unit )
     {
       m_unit = unit;
     }

     const std::vector< std::string >&
     getSubLabel() const
     {
       return m_subLabel;
     }

     void
     setSubLabel( const std::vector< std::string >& subLabel )
     {
       m_subLabel = subLabel;
     }

private:
     std::string m_label;
     std::string m_unit;
     std::vector< std::string > m_subLabel;
  };

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[xyfix]

when I comment out the setting of the custom headerview in the dialog class I can see the header. And when I just add a simple QHeaderView instead of the HierarchicalHeaderView I don't get a header.