我有一个QDialogfor 开始我的游戏。在这门课上我有一个QGraphicsTextItem. 我想要它是可点击的。当用户点击玩游戏开始时。我这样做但不工作。
class Mydialog_start:public QDialog
{
Q_OBJECT
public:
explicit Mydialog_start(QWidget *parent = 0);
signals:
public slots:
void on_play_clicked();
void on_exit_clicked();
private:
QGraphicsScene* scene;
QGraphicsView* view;
QPixmap image;
QBrush brush;
QGraphicsTextItem* text;
QFont font;
const int x_size;
const int y_size;
};
Mydialog_start::Mydialog_start(QWidget *parent) :
QDialog(parent),x_size(400),y_size(400)
{
scene=new QGraphicsScene(this);
view=new QGraphicsView(this);
view->setScene(scene);
scene->setSceneRect(0,0,x_size,y_size);
image.load(":picture/image/background.jpg");
image=image.scaled(x_size,y_size);
brush.setTexture(image);
scene->setBackgroundBrush(brush);
font.setBold(true);
font.setPointSize(40);
font.setItalic(true);
text=scene->addText("play",font);
text->setDefaultTextColor(QColor("red"));
text->setPos(100,300);
this->setFixedSize(400,400);
connect(text,SIGNAL(linkActivated(QString("play"))),this,SLOT(on_play_clicked()));
}
void Mydialog_start::on_play_clicked()
{
accept();
}
void Mydialog_start::on_exit_clicked()
{
reject();
}
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
Mydialog_start dialog;
dialog.exec();
if( dialog.exec()==QDialog::Accepted)
{
w.show();
}
else
{
w.close();
}
}