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#ifndef BUTTONWIDGET_H
#define BUTTONWIDGET_H
#include <qwidget.h>
class QSignalMapper;
class QString;
class QStringList;
class ButtonWidget : public QWidget
{
Q_OBJECT
public:
ButtonWidget(QStringList texts, QWidget *parent = 0);
signals:
void clicked(const QString &text);
private:
QSignalMapper *signalMapper;
};
#endif
#include <QtGui>
#include "buttonwidget.h"
ButtonWidget::ButtonWidget(QStringList texts, QWidget *parent)
: QWidget(parent)
{
signalMapper = new QSignalMapper(this);
QGridLayout *gridLayout = new QGridLayout;
for (int i = 0; i < texts.size(); ++i) {
QPushButton *button = new QPushButton(texts[i]);
connect(button, SIGNAL(clicked()), signalMapper, SLOT(map()));
signalMapper->setMapping(button, texts[i]);
gridLayout->addWidget(button, i / 3, i % 3);
}
connect(signalMapper, SIGNAL(mapped(const QString &)),
this, SIGNAL(clicked(const QString &)));
setLayout(gridLayout);
}
#include <QMainWindow>
#include <QStatusBar>
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
MainWindow()
{
statusBar()->showMessage(tr("Ready"));
}
public slots:
void buttonPressed(const QString &text)
{
statusBar()->showMessage(tr("Chose %1").arg(text));
}
};
#include <QApplication>
#include "buttonwidget.h"
#include "mainwindow.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
QStringList texts;
texts << "January" << "February" << "March" << "April"
<< "May" << "June" << "July" << "August"
<< "September" << "October" << "November"
<< "December";
MainWindow *mw = new MainWindow;
ButtonWidget *buttons = new ButtonWidget(texts, mw);
mw->setCentralWidget(buttons);
mw->show();
QObject::connect(buttons, SIGNAL(clicked(const QString &)),
mw, SLOT(buttonPressed(const QString &)));
return app.exec();
}
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