Remove row button in QTabelview

[guidupas]

Hello all!

I am having some problems with a QPushButton used inside a QTableview. This button needs to remove the row but when I remove one row its changes the index and the button starts to remove the wrong row.

How can I pass the right parameter to void "MainWindow:n_excluir_clicked(int linha)" ?

Thanks a lot.

Code below:

void MainWindow::adicionarLinha(QStandardItemModel *modelo, QTableView *tabela)
{
    spinBoxDelegar = new spinBoxDelegate(this);
 
    QPushButton *excluirButton = new QPushButton(*iconeExcluirButton, "", 0);
    excluirButton = new QPushButton(*iconeExcluirButton, "", 0);
    excluirButton->setStyleSheet("background-color: rgb(255, 255, 255); color: rgb(255, 255, 255); border: 0");
    QSignalMapper *mapearSinalBotaoExcluir = new QSignalMapper(this);
 
    modelo->insertRow(modelo->rowCount());
    modelo->setData(modelo->index(modelo->rowCount()-1,1), 1);
    tabela->setItemDelegateForColumn(1, spinBoxDelegar);
    tabela->setIndexWidget(modelo->index(modelo->rowCount()-1,2), excluirButton);
    tabela->edit(modelo->index(modelo->rowCount()-1,0));
 
    mapearSinalBotaoExcluir->setMapping(excluirButton, modelo->rowCount()-1);
    connect(excluirButton, SIGNAL(clicked()), mapearSinalBotaoExcluir, SLOT(map()));
    connect(mapearSinalBotaoExcluir, SIGNAL(mapped(int)), this, SLOT(on_excluir_clicked(int)));
}
 
void MainWindow::on_excluir_clicked(int linha)
{
     this->modelo1->removeRow(linha);
}

void MainWindow::adicionarLinha(QStandardItemModel *modelo, QTableView *tabela)
{
    spinBoxDelegar = new spinBoxDelegate(this);

    QPushButton *excluirButton = new QPushButton(*iconeExcluirButton, "", 0);
    excluirButton = new QPushButton(*iconeExcluirButton, "", 0);
    excluirButton->setStyleSheet("background-color: rgb(255, 255, 255); color: rgb(255, 255, 255); border: 0");
    QSignalMapper *mapearSinalBotaoExcluir = new QSignalMapper(this);

    modelo->insertRow(modelo->rowCount());
    modelo->setData(modelo->index(modelo->rowCount()-1,1), 1);
    tabela->setItemDelegateForColumn(1, spinBoxDelegar);
    tabela->setIndexWidget(modelo->index(modelo->rowCount()-1,2), excluirButton);
    tabela->edit(modelo->index(modelo->rowCount()-1,0));

    mapearSinalBotaoExcluir->setMapping(excluirButton, modelo->rowCount()-1);
    connect(excluirButton, SIGNAL(clicked()), mapearSinalBotaoExcluir, SLOT(map()));
    connect(mapearSinalBotaoExcluir, SIGNAL(mapped(int)), this, SLOT(on_excluir_clicked(int)));
}

void MainWindow::on_excluir_clicked(int linha)
{
     this->modelo1->removeRow(linha);
}

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Captura de Tela 2014-03-01 às 09.55.39.jpg

[anda_skoa]

One thing you can try is to have one signal mapper and store all button mappings in there.

Then, when you remove a row, you iterate over the mapping numbers, retrieve the sender object, remove the mapping for that object and create a new mapping with the row the button is now in.

Cheers,
_

[guidupas]

Could you help me with some code?

Thanks