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(C++) QTableViewExample2

 

QtQt CreatorLubuntu

 

QTableView example 2: table with ten columns of checkboxes is a QTableView example.

 

Technical facts

 

Application type(s)

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Libraries used:

 

 

 

 

 

Qt project file: ./CppQTableViewExample2/CppQTableViewExample2.pro

 

QT       += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TEMPLATE = app
QMAKE_CXXFLAGS += -std=c++11
SOURCES += \
    qtdialog.cpp \
    qtmain.cpp

HEADERS  += qtdialog.h

FORMS    += qtdialog.ui

 

 

 

 

 

./CppQTableViewExample2/qtdialog.h

 

#ifndef QTDIALOG_H
#define QTDIALOG_H

#include <QDialog>

namespace Ui {
  class QtDialog;
}

struct QStandardItemModel;

class QtDialog : public QDialog
{
  Q_OBJECT
  
public:
  explicit QtDialog(QWidget *parent = 0);
  ~QtDialog();
  
private slots:
  void on_button_clicked();

private:
  Ui::QtDialog *ui;
};

#endif // QTDIALOG_H

 

 

 

 

 

./CppQTableViewExample2/qtdialog.cpp

 

#include "qtdialog.h"

#include <cassert>

#include <QStandardItemModel>
#include "ui_qtdialog.h"

QtDialog::QtDialog(QWidget *parent) :
  QDialog(parent),
  ui(new Ui::QtDialog)
{
  ui->setupUi(this);

  assert(!ui->table->model());
  ui->table->setModel(new QStandardItemModel(this));
  assert( ui->table->model());

  assert(dynamic_cast<QStandardItemModel*>(ui->table->model()));
  dynamic_cast<QStandardItemModel*>(ui->table->model())->setColumnCount(8);

  for (int i=0; i!=10; ++i) on_button_clicked();
}

QtDialog::~QtDialog()
{
  delete ui;
}

void QtDialog::on_button_clicked()
{
  const int n_cols = ui->table->model()->columnCount();
  QList<QStandardItem*> items;
  for (int i=0; i!=n_cols; ++i)
  {
    QStandardItem * const item = new QStandardItem;
    item->setCheckable(true);
    item->setEditable(false);
    item->setCheckState(Qt::Checked);
    items.push_back(item);

    ui->table->setColumnWidth(i,24);

  }
  assert(dynamic_cast<QStandardItemModel*>(ui->table->model()));
  dynamic_cast<QStandardItemModel*>(ui->table->model())->appendRow(items);

  ui->table->scrollToBottom();
  ui->table->setCurrentIndex(items[0]->index());
  ui->table->setRowHeight(items[0]->index().row(),24);
}

 

 

 

 

 

./CppQTableViewExample2/qtmain.cpp

 

#include <QApplication>
#include "qtdialog.h"

int main(int argc, char *argv[])
{
  QApplication a(argc, argv);
  QtDialog w;
  w.show();
  return a.exec();
}

 

 

 

 

 

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