我试图创建QMessageBox
与QT帮助qmessagebox.cpp
提到的构造函数,但它并没有为我工作了。 由于某种原因,QMessageBox
调整大小以适应窗口标题不起作用。但是,您可以通过创建QMessageBox
自己的子类别来调整MessageBox
大小。
请看下面的例子;
class MyMessageBox : public QMessageBox
{
public:
explicit MyMessageBox(QWidget *parent = 0) : QMessageBox(parent) { }
MyMessageBox(const QString &title, const QString &text, Icon icon,
int button0, int button1, int button2,
QWidget *parent = 0,
Qt::WindowFlags f = Qt::Dialog | Qt::MSWindowsFixedSizeDialogHint) :
QMessageBox(title, text, icon, button0, button1, button2, parent, f) { }
static void about(QString title, QString text)
{
MyMessageBox aboutBox(title, text, QMessageBox::Information, 0, 0, 0, NULL);
aboutBox.setText(title);
aboutBox.setText(text);
QIcon icon = aboutBox.windowIcon();
QSize size = icon.actualSize(QSize(64, 64));
aboutBox.setIconPixmap(icon.pixmap(size));
aboutBox.exec();
}
void showEvent(QShowEvent *event)
{
QMessageBox::showEvent(event);
QWidget *textField = findChild<QWidget *>("qt_msgbox_label");
if (textField != NULL)
{
// getting what ever my system has set for the window title font
QFont font = QFont("Ubuntu Bold", 11);
// you might want to make it more generic by detecting the actuall font
// or using smth like this:
//QFont font = QApplication::font("QWorkspaceTitleBar");
QFontMetrics fm(font);
int width = qMax(fm.width(windowTitle()) + 50, textField->minimumWidth());
textField->setMinimumWidth(width);
}
}
};
您是如何尝试调整对话框小部件的大小的? – TheDarkKnight
通过调用'QWidget :: resize()' – Ashot
试试[setMinimumSize](http://doc.qt.io/qt-5/qwidget.html#minimumSize-prop) – TheDarkKnight