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// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QtWidgets>
class WindowManagedWindow: public QWidget
{
Q_OBJECT
public:
WindowManagedWindow(QWidget *parent = nullptr)
:QWidget(parent)
{
QVBoxLayout *layout = new QVBoxLayout();
// UI for controlling window show state
QHBoxLayout *showWindowLayout = new QHBoxLayout();
layout->addLayout(showWindowLayout);
QPushButton *showNormal = new QPushButton("Show Normal");
QPushButton *showFullscreen = new QPushButton("Show FullScreen");
QPushButton *showMaximized = new QPushButton("Show Maximized");
QPushButton *close = new QPushButton("Close");
showWindowLayout->addWidget(showNormal);
showWindowLayout->addWidget(showFullscreen);
showWindowLayout->addWidget(showMaximized);
showWindowLayout->addWidget(close);
connect(showNormal, &QPushButton::clicked, [=]() {
this->showNormal();
});
connect(showFullscreen, &QPushButton::clicked, [=]() {
this->showFullScreen();
});
connect(showMaximized, &QPushButton::clicked, [=]() {
this->showMaximized();
});
connect(close, &QPushButton::clicked, [=]() {
this->close();
});
// UI for adding a child window
QHBoxLayout *childWindowLayout = new QHBoxLayout();
layout->addLayout(childWindowLayout);
QPushButton *showChild = new QPushButton("Add Child Window");
childWindowLayout->addWidget(showChild);
connect(showChild, &QPushButton::clicked, [=]() {
WindowManagedWindow *childWindow = new WindowManagedWindow(this);
childWindow->winId(); // ensure it has a QWindow
childWindow->setBackgroundColor("AliceBlue");
childWindowLayout->insertWidget(1, childWindow);
childWindow->show();
});
childWindowLayout->addStretch();
// UI for showing a transient child window
QHBoxLayout *transientChildWindowLayout = new QHBoxLayout();
layout->addLayout(transientChildWindowLayout);
QPushButton *showTransientChild = new QPushButton("Add Transient Child Window");
transientChildWindowLayout->addWidget(showTransientChild);
QRadioButton *modal = new QRadioButton("Modal Dialog");
transientChildWindowLayout->addWidget(modal);
QRadioButton *popup = new QRadioButton("Popup");
transientChildWindowLayout->addWidget(popup);
QButtonGroup *radioGroup = new QButtonGroup();
radioGroup->addButton(modal);
radioGroup->addButton(popup);
modal->setChecked(true);
connect(showTransientChild, &QPushButton::clicked, [this, modal]() {
WindowManagedWindow *transientChildWindow = new WindowManagedWindow();
transientChildWindow->winId();
if (modal->isChecked()) {
transientChildWindow->setWindowFlag(Qt::Dialog);
transientChildWindow->setWindowModality(Qt::WindowModal);
transientChildWindow->setBackgroundColor("MistyRose");
} else {
transientChildWindow->setWindowFlag(Qt::Popup);
transientChildWindow->setBackgroundColor("LavenderBlush");
}
transientChildWindow->windowHandle()->setTransientParent(this->windowHandle());
transientChildWindow->show();
});
transientChildWindowLayout->addStretch();
// UI for adding a new top-level window
if (!parentWidget()) {
QHBoxLayout *addWindowLayout = new QHBoxLayout();
layout->addLayout(addWindowLayout);
QPushButton *addWindow = new QPushButton("Add Top-level Window");
QRadioButton *addNormal = new QRadioButton("Normal");
QRadioButton *addFullScreen = new QRadioButton("FullScreen");
QRadioButton *addMaximized = new QRadioButton("Maximized");
QButtonGroup *radioGroup = new QButtonGroup();
radioGroup->addButton(addNormal);
radioGroup->addButton(addFullScreen);
radioGroup->addButton(addMaximized);
addNormal->setChecked(true);
addWindowLayout->addWidget(addWindow);
addWindowLayout->addWidget(addNormal);
addWindowLayout->addWidget(addFullScreen);
addWindowLayout->addWidget(addMaximized);
connect(addWindow, &QPushButton::clicked, [=]() {
QWidget *newWindow = new WindowManagedWindow();
if (addNormal->isChecked()) {
newWindow->showNormal();
} else if (addFullScreen->isChecked()) {
newWindow->showFullScreen();
} else if (addMaximized->isChecked()) {
newWindow->showMaximized();
}
});
}
// Test label
QHBoxLayout *labelLayout = new QHBoxLayout();
layout->addLayout(labelLayout);
labelLayout->addWidget(new QLabel("Test Text Input:"));
labelLayout->addWidget(new QLineEdit());
labelLayout->addSpacerItem(new QSpacerItem(20, 40, QSizePolicy::Minimum, QSizePolicy::Expanding));
setLayout(layout);
updateWindowFocusState();
}
void paintEvent(QPaintEvent *event) override
{
updateWindowFocusState(); // hacky update
QWidget::paintEvent(event);
}
void updateWindowFocusState()
{
QString title = QString("isActive: %1 Modal: %2")
.arg(isActiveWindow() ? "yes" : "no")
.arg(isModal() ? "yes" : "no");
setWindowTitle(title);
}
void setBackgroundColor(const QString &colorName)
{
QColor color(colorName);
if (!color.isValid()) {
qWarning("Invalid color name provided: %s", qPrintable(colorName));
return;
}
QPalette palette = this->palette();
palette.setColor(QPalette::Window, color);
this->setAutoFillBackground(true);
this->setPalette(palette);
}
};
int main(int argc, char **argv)
{
// Limit native widgets to the WindowManagedWindow instances
QCoreApplication::setAttribute(Qt::AA_DontCreateNativeWidgetSiblings);
QApplication app(argc, argv);
QObject::connect(qApp, &QApplication::focusChanged, [](QWidget *oldWidget, QWidget *newWidget) {
if (oldWidget)
if (WindowManagedWindow *window = qobject_cast<WindowManagedWindow *>(oldWidget->window()))
window->updateWindowFocusState();
if (newWidget)
if (WindowManagedWindow *window = qobject_cast<WindowManagedWindow *>(newWidget->window()))
window->updateWindowFocusState();
});
WindowManagedWindow window;
window.showNormal();
return app.exec();
}
#include "main.moc"
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