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tictactoedialog.cpp Example File
designer/taskmenuextension/tictactoedialog.cpp

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 #include <QtGui>
 #include <QtDesigner>

 #include "tictactoe.h"
 #include "tictactoedialog.h"

 TicTacToeDialog::TicTacToeDialog(TicTacToe *tic, QWidget *parent)
     : QDialog(parent)
 {
     ticTacToe = tic;
     editor = new TicTacToe;
     editor->setState(ticTacToe->state());

     buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok
                                      | QDialogButtonBox::Cancel
                                      | QDialogButtonBox::Reset);

     connect(buttonBox->button(QDialogButtonBox::Reset), SIGNAL(clicked()),
             this, SLOT(resetState()));
     connect(buttonBox, SIGNAL(accepted()), this, SLOT(saveState()));
     connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));

     QVBoxLayout *mainLayout = new QVBoxLayout;
     mainLayout->addWidget(editor);
     mainLayout->addWidget(buttonBox);

     setLayout(mainLayout);
     setWindowTitle(tr("Edit State"));
 }

 QSize TicTacToeDialog::sizeHint() const
 {
     return QSize(250, 250);
 }

 void TicTacToeDialog::resetState()
 {
     editor->clearBoard();
 }

 void TicTacToeDialog::saveState()
 {
     if (QDesignerFormWindowInterface *formWindow
             = QDesignerFormWindowInterface::findFormWindow(ticTacToe)) {
         formWindow->cursor()->setProperty("state", editor->state());
     }
     accept();
 }


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Qt 4.3.5