change Qtablewidget vertical header displayrole

[advseo32]

Hi every body,

i want to change the behavior of vertical header in Qtableview

this is what i mean:

when user start fill table cells, i want this sign(*) present in vertical header instead of numbers

when user moves beteween rows , i want also this sign(>) present in vertical header instead of numbers

[advseo32]

Plz give me somme hints

[ChrisW67]

From QTableView obtain verticalHeader()
From the vertical header obtain the model()
From the model you can call setData() to change the text, colour, font, pixmap etc. of any vertical header entry.

You might need to use a QStyledItemDelegate on the table to signal when an editor is opened/close so that you can change the vertical header on that row.

[advseo32]

From QTableView obtain verticalHeader()
From the vertical header obtain the model()
From the model you can call setData() to change the text, colour, font, pixmap etc. of any vertical header entry.

You might need to use a QStyledItemDelegate on the table to signal when an editor is opened/close so that you can change the vertical header on that row.

i have use this

QModelIndex index ;
  index = tableau->model()->index(0,0) ;
  tableau->verticalHeader()->model()->setData(index,"*",Qt::DisplayRole);

QModelIndex index ;
  index = tableau->model()->index(0,0) ;
  tableau->verticalHeader()->model()->setData(index,"*",Qt::DisplayRole);

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but the cell was changed not the cell in vertical header

[advseo32]

i have uses another way because really i don't know, how i can catch "the opening and closing of editor in Qstyleditemdelegate, like what you said

her is my code

#include "dialog.h"
 
Dialog::Dialog(QWidget *parent)
    : QWidget(parent)
{
    layoutPrincipale = new QVBoxLayout(this);
    QPushButton *button = new QPushButton("Clear",this);
    tableau = new MonTableauWidget(this);
    tableau->setRowCount(1);
    tableau->setColumnCount(4)  ;
    tableau->setCurrentIndex(tableau->model()->index(0,0,QModelIndex()));
 
    //tableau->setCurrentIndex();
   // QKeyEvent event(QEvent::KeyPress, Qt::Key_Down, Qt::NoModifier);
 
 
    QStringList list ;
    list << "Désignation" << "Qte" << "Prix/U" << "Total";
    tableau->setHorizontalHeaderLabels(list);
    tableau->setCurrentCell(0,0);
    layoutPrincipale->addWidget(tableau);
    layoutPrincipale->addWidget(button);
    setLayout(layoutPrincipale);
    //connect(tableau,SIGNAL(cellChanged(int,int)),this,SLOT(addrow(int,int))) ;
     connect(button,SIGNAL(clicked()),tableau,SLOT(clear()));
     connect(tableau,SIGNAL(itemSelectionChanged()),this,SLOT(newfunction()));
 
}
 
Dialog::~Dialog()
{
 
}
 
void Dialog::addrow(int row, int col)
{
    if(col == 0)
        tableau->insertRow(tableau->rowCount());
}
 
void Dialog::newRecod(QKeyEvent *record)
{
 
}
 
void Dialog::newfunction()
{
    QTableWidgetItem * item = new QTableWidgetItem() ;
    item->setIcon( *(new QIcon("imgs/editIcon.png")));
    tableau->setVerticalHeaderItem(0,item);
    for (int rowToDelete=0; rowToDelete < tableau->rowCount(); ++rowToDelete)
    {
        if(rowToDelete != 0)
            tableau->takeVerticalHeaderItem(rowToDelete);
    }
 
}

#include "dialog.h"

Dialog::Dialog(QWidget *parent)
    : QWidget(parent)
{
    layoutPrincipale = new QVBoxLayout(this);
    QPushButton *button = new QPushButton("Clear",this);
    tableau = new MonTableauWidget(this);
    tableau->setRowCount(1);
    tableau->setColumnCount(4)  ;
    tableau->setCurrentIndex(tableau->model()->index(0,0,QModelIndex()));

    //tableau->setCurrentIndex();
   // QKeyEvent event(QEvent::KeyPress, Qt::Key_Down, Qt::NoModifier);


    QStringList list ;
    list << "Désignation" << "Qte" << "Prix/U" << "Total";
    tableau->setHorizontalHeaderLabels(list);
    tableau->setCurrentCell(0,0);
    layoutPrincipale->addWidget(tableau);
    layoutPrincipale->addWidget(button);
    setLayout(layoutPrincipale);
    //connect(tableau,SIGNAL(cellChanged(int,int)),this,SLOT(addrow(int,int))) ;
     connect(button,SIGNAL(clicked()),tableau,SLOT(clear()));
     connect(tableau,SIGNAL(itemSelectionChanged()),this,SLOT(newfunction()));

}

Dialog::~Dialog()
{
    
}

void Dialog::addrow(int row, int col)
{
    if(col == 0)
        tableau->insertRow(tableau->rowCount());
}

void Dialog::newRecod(QKeyEvent *record)
{

}

void Dialog::newfunction()
{
    QTableWidgetItem * item = new QTableWidgetItem() ;
    item->setIcon( *(new QIcon("imgs/editIcon.png")));
    tableau->setVerticalHeaderItem(0,item);
    for (int rowToDelete=0; rowToDelete < tableau->rowCount(); ++rowToDelete)
    {
        if(rowToDelete != 0)
            tableau->takeVerticalHeaderItem(rowToDelete);
    }

}

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[ChrisW67]

i have use this

QModelIndex index ;
  index = tableau->model()->index(0,0) ;
  tableau->verticalHeader()->model()->setData(index,"*",Qt::DisplayRole);

QModelIndex index ;
  index = tableau->model()->index(0,0) ;
  tableau->verticalHeader()->model()->setData(index,"*",Qt::DisplayRole);

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but the cell was changed not the cell in vertical header

No, because you are attempting to manipulate the model underlying the header with an index from the model underlying the table.

QHeaderView *verticalHeader = tableau->verticalHeader();  // From QTableView obtain verticalHeader()
QAbstractItemModel *headerModel = verticalHeader->model();  // From the vertical header obtain the model()
QModelIndex index = headerModel->index(0, 0); // index of first row header
headerModel->setData(index, "*"); // From the model you can call setData() to change the text

QHeaderView *verticalHeader = tableau->verticalHeader();  // From QTableView obtain verticalHeader()
QAbstractItemModel *headerModel = verticalHeader->model();  // From the vertical header obtain the model()
QModelIndex index = headerModel->index(0, 0); // index of first row header
headerModel->setData(index, "*"); // From the model you can call setData() to change the text

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You could also try this:

QAbstractItemModel *tableModel = tableau->model();
tableModel->setHeaderData(0, Qt::Vertical, "*");

QAbstractItemModel *tableModel = tableau->model();
tableModel->setHeaderData(0, Qt::Vertical, "*");

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[advseo32]

It seems that you haven't understand me "if so, sorry my english i too bad"

I'm using QtableWidget not Qtableview

i want this sign(*) appears in verticalheader when the start editing or typing in one of cell

also i want another icon shown when the user change selection of row (means when the user go from row1 to row2 or to row0)

i hope this is clear for you

thank's

[ChrisW67]

QTableWidget is a QTableView
I am telling you how to change the text in the header. You still need to work out when to change it.

[advseo32]

after reading Qtablewidget class i have gotted an idea and it works perfectly

her is the code

QTableWidgetItem * item = new QTableWidgetItem() ;
    item->setIcon( *(new QIcon("imgs/editIcon.png")));
    tableau->setVerticalHeaderItem(row,item);

QTableWidgetItem * item = new QTableWidgetItem() ;
    item->setIcon( *(new QIcon("imgs/editIcon.png")));
    tableau->setVerticalHeaderItem(row,item);

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the only probleme is how i can catch when the user start editing cell or typing a text

regards

[advseo32]

You might need to use a QStyledItemDelegate on the table to signal when an editor is opened/close so that you can change the vertical header on that row.

how i detect when the editor is opened ???

[advseo32]

any body can help me