backbone of new FramelessHelper
This commit is contained in:
Altair Wei
parent
0bfefb25d0
commit
1e2598398d
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@ -34,177 +34,67 @@
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FRAMELESSHELPER_BEGIN_NAMESPACE
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FramelessHelper::FramelessHelper(QObject *parent) : QObject(parent) {}
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void FramelessHelper::removeWindowFrame(QWindow *window)
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FramelessHelper::FramelessHelper(QWindow *window)
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: QObject(window)
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, m_window(window)
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{
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Q_ASSERT(window);
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if (!window) {
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return;
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}
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window->setFlags(window->flags() | Qt::FramelessWindowHint);
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window->installEventFilter(this);
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window->setProperty(Constants::kFramelessModeFlag, true);
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Q_ASSERT(window != nullptr && window->isTopLevel());
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}
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void FramelessHelper::bringBackWindowFrame(QWindow *window)
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/*!
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Setup the window, make it frameless.
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*/
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void FramelessHelper::install()
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{
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Q_ASSERT(window);
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if (!window) {
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QRect origRect = m_window->geometry();
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resizeWindow(origRect.size());
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}
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/*!
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Restore the window to its original state
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*/
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void FramelessHelper::uninstall()
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{
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resizeWindow(QSize());
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}
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/*!
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Resize non-client area
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*/
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void FramelessHelper::resizeWindow(const QSize& windowSize)
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{
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if (windowSize == this->windowSize())
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return;
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}
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window->removeEventFilter(this);
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window->setFlags(window->flags() & ~Qt::FramelessWindowHint);
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window->setProperty(Constants::kFramelessModeFlag, false);
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setWindowSize(windowSize);
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}
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QRect FramelessHelper::titleBarRect()
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{
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return QRect(0, 0, windowSize().width(), titleBarHeight());
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}
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QRect FramelessHelper::clientRect()
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{
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QRect rect(0, 0, windowSize().width(), windowSize().height());
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rect = rect.adjusted(
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resizeBorderThickness(), titleBarHeight(),
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-resizeBorderThickness(), -resizeBorderThickness()
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);
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return rect;
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}
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QRegion FramelessHelper::nonClientRegion()
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{
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QRegion region(QRect(QPoint(0, 0), windowSize()));
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region -= clientRect();
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return region;
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}
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bool FramelessHelper::eventFilter(QObject *object, QEvent *event)
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{
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Q_ASSERT(object);
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Q_ASSERT(event);
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if (!object || !event) {
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return false;
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}
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// Only monitor window events.
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if (!object->isWindowType()) {
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return false;
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}
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const QEvent::Type type = event->type();
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// We are only interested in mouse events.
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if ((type != QEvent::MouseButtonDblClick) && (type != QEvent::MouseButtonPress)
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&& (type != QEvent::MouseMove)) {
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return false;
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}
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const auto window = qobject_cast<QWindow *>(object);
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const int resizeBorderThickness = FramelessWindowsManager::getResizeBorderThickness(window);
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const int titleBarHeight = FramelessWindowsManager::getTitleBarHeight(window);
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const bool resizable = FramelessWindowsManager::getResizable(window);
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const int windowWidth = window->width();
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const auto mouseEvent = static_cast<QMouseEvent *>(event);
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#if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
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const QPoint localMousePosition = mouseEvent->position().toPoint();
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#else
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const QPoint localMousePosition = mouseEvent->windowPos().toPoint();
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#endif
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const Qt::Edges edges = [window, resizeBorderThickness, windowWidth, &localMousePosition] {
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const int windowHeight = window->height();
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if (localMousePosition.y() <= resizeBorderThickness) {
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if (localMousePosition.x() <= resizeBorderThickness) {
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return Qt::TopEdge | Qt::LeftEdge;
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}
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if (localMousePosition.x() >= (windowWidth - resizeBorderThickness)) {
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return Qt::TopEdge | Qt::RightEdge;
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}
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return Qt::Edges{Qt::TopEdge};
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}
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if (localMousePosition.y() >= (windowHeight - resizeBorderThickness)) {
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if (localMousePosition.x() <= resizeBorderThickness) {
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return Qt::BottomEdge | Qt::LeftEdge;
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}
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if (localMousePosition.x() >= (windowWidth - resizeBorderThickness)) {
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return Qt::BottomEdge | Qt::RightEdge;
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}
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return Qt::Edges{Qt::BottomEdge};
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}
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if (localMousePosition.x() <= resizeBorderThickness) {
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return Qt::Edges{Qt::LeftEdge};
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}
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if (localMousePosition.x() >= (windowWidth - resizeBorderThickness)) {
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return Qt::Edges{Qt::RightEdge};
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}
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return Qt::Edges{};
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} ();
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const bool hitTestVisible = Utilities::isHitTestVisibleInChrome(window);
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bool isInTitlebarArea = false;
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if ((window->windowState() == Qt::WindowMaximized)
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|| (window->windowState() == Qt::WindowFullScreen)) {
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isInTitlebarArea = (localMousePosition.y() >= 0)
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&& (localMousePosition.y() <= titleBarHeight)
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&& (localMousePosition.x() >= 0)
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&& (localMousePosition.x() <= windowWidth)
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&& !hitTestVisible;
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}
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if (window->windowState() == Qt::WindowNoState) {
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isInTitlebarArea = (localMousePosition.y() > resizeBorderThickness)
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&& (localMousePosition.y() <= titleBarHeight)
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&& (localMousePosition.x() > resizeBorderThickness)
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&& (localMousePosition.x() < (windowWidth - resizeBorderThickness))
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&& !hitTestVisible;
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}
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// Determine if the mouse click occurred in the title bar
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static bool titlebarClicked = false;
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if (type == QEvent::MouseButtonPress) {
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if (isInTitlebarArea)
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titlebarClicked = true;
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else
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titlebarClicked = false;
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}
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if (type == QEvent::MouseButtonDblClick) {
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if (mouseEvent->button() != Qt::MouseButton::LeftButton) {
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return false;
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}
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if (isInTitlebarArea) {
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if (window->windowState() == Qt::WindowState::WindowFullScreen) {
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return false;
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}
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if (window->windowState() == Qt::WindowState::WindowMaximized) {
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window->showNormal();
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} else {
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window->showMaximized();
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}
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window->setCursor(Qt::ArrowCursor);
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}
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} else if (type == QEvent::MouseMove) {
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// Display resize indicators
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static bool cursorChanged = false;
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if ((window->windowState() == Qt::WindowState::WindowNoState) && resizable) {
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if (((edges & Qt::TopEdge) && (edges & Qt::LeftEdge))
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|| ((edges & Qt::BottomEdge) && (edges & Qt::RightEdge))) {
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window->setCursor(Qt::SizeFDiagCursor);
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cursorChanged = true;
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} else if (((edges & Qt::TopEdge) && (edges & Qt::RightEdge))
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|| ((edges & Qt::BottomEdge) && (edges & Qt::LeftEdge))) {
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window->setCursor(Qt::SizeBDiagCursor);
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cursorChanged = true;
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} else if ((edges & Qt::TopEdge) || (edges & Qt::BottomEdge)) {
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window->setCursor(Qt::SizeVerCursor);
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cursorChanged = true;
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} else if ((edges & Qt::LeftEdge) || (edges & Qt::RightEdge)) {
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window->setCursor(Qt::SizeHorCursor);
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cursorChanged = true;
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} else {
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if (cursorChanged) {
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window->setCursor(Qt::ArrowCursor);
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cursorChanged = false;
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}
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}
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}
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if ((mouseEvent->buttons() & Qt::LeftButton) && titlebarClicked) {
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if (edges == Qt::Edges{}) {
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if (isInTitlebarArea) {
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if (!window->startSystemMove()) {
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// ### FIXME: TO BE IMPLEMENTED!
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qWarning() << "Current OS doesn't support QWindow::startSystemMove().";
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}
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}
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}
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}
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} else if (type == QEvent::MouseButtonPress) {
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if (edges != Qt::Edges{}) {
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if ((window->windowState() == Qt::WindowState::WindowNoState) && !hitTestVisible && resizable) {
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if (!window->startSystemResize(edges)) {
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// ### FIXME: TO BE IMPLEMENTED!
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qWarning() << "Current OS doesn't support QWindow::startSystemResize().";
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}
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}
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}
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}
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return false;
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}
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FRAMELESSHELPER_END_NAMESPACE
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@ -42,14 +42,40 @@ class FRAMELESSHELPER_API FramelessHelper : public QObject
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Q_DISABLE_COPY_MOVE(FramelessHelper)
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public:
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explicit FramelessHelper(QObject *parent = nullptr);
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explicit FramelessHelper(QWindow *window);
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~FramelessHelper() override = default;
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void removeWindowFrame(QWindow *window);
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void bringBackWindowFrame(QWindow *window);
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void install();
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void uninstall();
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QWindow *window() { return m_window; }
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QSize windowSize() { return m_windowSize; }
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void setWindowSize(const QSize& size) { m_windowSize = size; }
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void resizeWindow(const QSize& windowSize);
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int titleBarHeight() { return m_titleBarHeight; }
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int setTitleBarHeight(int height) { m_titleBarHeight = height; }
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QRect titleBarRect();
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int resizeBorderThickness() { return m_resizeBorderThickness; }
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void setResizeBorderThickness(int thickness) { m_resizeBorderThickness = thickness; }
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bool resizable() { return m_resizable; }
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void setResizable(bool resizable) { m_resizable = resizable; }
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QRect clientRect();
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QRegion nonClientRegion();
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protected:
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bool eventFilter(QObject *object, QEvent *event) override;
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private:
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QWindow *m_window;
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QSize m_windowSize;
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int m_titleBarHeight;
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int m_resizeBorderThickness;
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bool m_resizable;
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};
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FRAMELESSHELPER_END_NAMESPACE
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