mirror of
https://github.com/crystalidea/qt6windows7.git
synced 2024-11-24 12:30:32 +08:00
109 lines
3.0 KiB
C++
109 lines
3.0 KiB
C++
|
// Copyright (C) 2020 The Qt Company Ltd.
|
||
|
|
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
|
||
|
|
|
||
|
|
#include <QtWidgets>
|
||
|
|
|
||
|
|
class ScreenWidget : public QWidget
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
ScreenWidget(QWidget *parent)
|
||
|
|
: QWidget(parent, Qt::Window)
|
||
|
|
{
|
||
|
|
textEdit = new QTextEdit;
|
||
|
|
textEdit->setReadOnly(true);
|
||
|
|
|
||
|
|
QHBoxLayout *layout = new QHBoxLayout;
|
||
|
|
layout->addWidget(textEdit);
|
||
|
|
setLayout(layout);
|
||
|
|
}
|
||
|
|
|
||
|
|
void updateText()
|
||
|
|
{
|
||
|
|
QString text = "<html><body>";
|
||
|
|
text += QString("<p>Screen: %1\n</p>").arg(screen()->name());
|
||
|
|
text += QString("<p>DPR: %1\n</p>").arg(screen()->devicePixelRatio());
|
||
|
|
text += QString("</body></html>");
|
||
|
|
|
||
|
|
textEdit->setText(text);
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
QTextEdit *textEdit;
|
||
|
|
};
|
||
|
|
|
||
|
|
class Controller : public QDialog
|
||
|
|
{
|
||
|
|
Q_OBJECT
|
||
|
|
|
||
|
|
public:
|
||
|
|
Controller()
|
||
|
|
{
|
||
|
|
QPushButton *screenButton = new QPushButton;
|
||
|
|
screenButton->setText("Show on Screen");
|
||
|
|
screenButton->setEnabled(false);
|
||
|
|
connect(screenButton, &QAbstractButton::clicked, this, &Controller::setScreen);
|
||
|
|
|
||
|
|
QPushButton *exitButton = new QPushButton;
|
||
|
|
exitButton->setText("E&xit");
|
||
|
|
connect(exitButton, &QAbstractButton::clicked, QApplication::instance(), &QCoreApplication::quit);
|
||
|
|
|
||
|
|
QHBoxLayout *actionLayout = new QHBoxLayout;
|
||
|
|
actionLayout->addWidget(screenButton);
|
||
|
|
actionLayout->addWidget(exitButton);
|
||
|
|
|
||
|
|
QGroupBox *radioGroup = new QGroupBox;
|
||
|
|
radioGroup->setTitle(QLatin1String("Select target screen"));
|
||
|
|
|
||
|
|
QVBoxLayout *groupLayout = new QVBoxLayout;
|
||
|
|
const auto screens = QGuiApplication::screens();
|
||
|
|
int count = 0;
|
||
|
|
for (const auto &screen : screens) {
|
||
|
|
QRadioButton *choice = new QRadioButton;
|
||
|
|
choice->setText(QString(QLatin1String("%1: %2")).arg(count).arg(screen->name()));
|
||
|
|
connect(choice, &QAbstractButton::toggled, this, [=](bool on){
|
||
|
|
if (on)
|
||
|
|
targetScreen = count;
|
||
|
|
screenButton->setEnabled(targetScreen != -1);
|
||
|
|
});
|
||
|
|
groupLayout->addWidget(choice);
|
||
|
|
++count;
|
||
|
|
}
|
||
|
|
radioGroup->setLayout(groupLayout);
|
||
|
|
|
||
|
|
QVBoxLayout *layout = new QVBoxLayout;
|
||
|
|
layout->addWidget(radioGroup);
|
||
|
|
layout->addLayout(actionLayout);
|
||
|
|
setLayout(layout);
|
||
|
|
}
|
||
|
|
|
||
|
|
private slots:
|
||
|
|
void setScreen()
|
||
|
|
{
|
||
|
|
QScreen *screen = QGuiApplication::screens().at(targetScreen);
|
||
|
|
if (!widget) {
|
||
|
|
widget = new ScreenWidget(this);
|
||
|
|
widget->setAttribute(Qt::WA_DeleteOnClose);
|
||
|
|
widget->setWindowTitle("Normal Window");
|
||
|
|
}
|
||
|
|
widget->setScreen(screen);
|
||
|
|
widget->show();
|
||
|
|
widget->updateText();
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
QPointer<ScreenWidget> widget = nullptr;
|
||
|
|
int targetScreen = -1;
|
||
|
|
};
|
||
|
|
|
||
|
|
int main(int argc, char *argv[])
|
||
|
|
{
|
||
|
|
QApplication app(argc, argv);
|
||
|
|
|
||
|
|
Controller controller;
|
||
|
|
controller.show();
|
||
|
|
|
||
|
|
return app.exec();
|
||
|
|
}
|
||
|
|
|
||
|
|
#include "main.moc"
|