SIP Dialog Example : QDialog « Qt « C++

1. C++
2. Qt
3. QDialog

SIP Dialog Example

  


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#ifndef DIALOG_H
#define DIALOG_H

#include <QDialog>

//! [Dialog header]
class Dialog : public QDialog
{
    Q_OBJECT

public:
    Dialog();
    void reactToSIP();

private:
    QRect desktopGeometry;

public slots:
    void desktopResized(int screen);
};
//! [Dialog header]

#endif









#include <QtGui>

#include "dialog.h"

//! [Dialog constructor part1]
Dialog::Dialog()
{
    desktopGeometry = QApplication::desktop()->availableGeometry(0);

    setWindowTitle(tr("SIP Dialog Example"));
    QScrollArea *scrollArea = new QScrollArea(this);
    QGroupBox *groupBox = new QGroupBox(scrollArea);
    groupBox->setTitle(tr("SIP Dialog Example"));
    QGridLayout *gridLayout = new QGridLayout(groupBox);
    groupBox->setLayout(gridLayout);
//! [Dialog constructor part1]

//! [Dialog constructor part2]
    QLineEdit* lineEdit = new QLineEdit(groupBox);
    lineEdit->setText(tr("Open and close the SIP"));
    lineEdit->setMinimumWidth(220);

    QLabel* label = new QLabel(groupBox);
    label->setText(tr("This dialog resizes if the SIP is opened"));
    label->setMinimumWidth(220);

    QPushButton* button = new QPushButton(groupBox);
    button->setText(tr("Close Dialog"));
    button->setMinimumWidth(220);
//! [Dialog constructor part2]

//! [Dialog constructor part3]
    if (desktopGeometry.height() < 400)
        gridLayout->setVerticalSpacing(80);
    else
        gridLayout->setVerticalSpacing(150);

    gridLayout->addWidget(label);
    gridLayout->addWidget(lineEdit);
    gridLayout->addWidget(button);
//! [Dialog constructor part3]

//! [Dialog constructor part4]
    scrollArea->setWidget(groupBox);
    QHBoxLayout* layout = new QHBoxLayout();
    layout->addWidget(scrollArea);
    setLayout(layout);
    scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
//! [Dialog constructor part4]

//! [Dialog constructor part5]
    connect(button, SIGNAL(clicked()),
        qApp, SLOT(closeAllWindows()));
    connect(QApplication::desktop(), SIGNAL(workAreaResized(int)), 
        this, SLOT(desktopResized(int)));
}
//! [Dialog constructor part5]

//! [desktopResized() function]
void Dialog::desktopResized(int screen)
{
    if (screen != 0)
        return;
    reactToSIP();
}
//! [desktopResized() function]

//! [reactToSIP() function]
void Dialog::reactToSIP()
{
    QRect availableGeometry = QApplication::desktop()->availableGeometry(0);

    if (desktopGeometry != availableGeometry) {
        if (windowState() | Qt::WindowMaximized)
            setWindowState(windowState() & ~Qt::WindowMaximized);

        setGeometry(availableGeometry);
    }

    desktopGeometry = availableGeometry;
}
//! [reactToSIP() function]







#include <QtGui>

#include "dialog.h"

//! [main() function]
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    Dialog dialog;
    return dialog.exec();
}
//! [main() function]

   
    
  

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