diff options
Diffstat (limited to 'src/widgets/kernel/qdesktopwidget.cpp')
| -rw-r--r-- | src/widgets/kernel/qdesktopwidget.cpp | 385 |
1 files changed, 0 insertions, 385 deletions
diff --git a/src/widgets/kernel/qdesktopwidget.cpp b/src/widgets/kernel/qdesktopwidget.cpp deleted file mode 100644 index 9f98af86e3..0000000000 --- a/src/widgets/kernel/qdesktopwidget.cpp +++ /dev/null @@ -1,385 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtWidgets module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qglobal.h" -#include "qdesktopwidget.h" -#include "qdesktopwidget_p.h" -#include "qscreen.h" -#include "qwidget_p.h" -#include "qwindow.h" - -#include <private/qhighdpiscaling_p.h> -#include <qpa/qplatformscreen.h> - -QT_BEGIN_NAMESPACE - -QDesktopScreenWidget::QDesktopScreenWidget(QScreen *screen, const QRect &geometry) - : QWidget(nullptr, Qt::Desktop), m_screen(screen) -{ - setVisible(false); - if (QWindow *winHandle = windowHandle()) - winHandle->setScreen(screen); - setScreenGeometry(geometry); -} - -void QDesktopScreenWidget::setScreenGeometry(const QRect &geometry) -{ - m_geometry = geometry; - setGeometry(geometry); -} - -int QDesktopScreenWidget::screenNumber() const -{ - const QDesktopWidgetPrivate *desktopWidgetP - = static_cast<const QDesktopWidgetPrivate *>(qt_widget_private(QApplication::desktop())); - return desktopWidgetP->screens.indexOf(const_cast<QDesktopScreenWidget *>(this)); -} - -const QRect QDesktopWidget::screenGeometry(const QWidget *widget) const -{ - return QDesktopWidgetPrivate::screenGeometry(widget); -} - -const QRect QDesktopWidgetPrivate::screenGeometry(const QWidget *widget) -{ - if (Q_UNLIKELY(!widget)) { - qWarning("QDesktopWidget::screenGeometry(): Attempt " - "to get the screen geometry of a null widget"); - return QRect(); - } - QRect rect = QWidgetPrivate::screenGeometry(widget); - if (rect.isNull()) - return screenGeometry(screenNumber(widget)); - else return rect; -} - -const QRect QDesktopWidget::availableGeometry(const QWidget *widget) const -{ - return QDesktopWidgetPrivate::availableGeometry(widget); -} - -const QRect QDesktopWidgetPrivate::availableGeometry(const QWidget *widget) -{ - if (Q_UNLIKELY(!widget)) { - qWarning("QDesktopWidget::availableGeometry(): Attempt " - "to get the available geometry of a null widget"); - return QRect(); - } - QRect rect = QWidgetPrivate::screenGeometry(widget); - if (rect.isNull()) - return availableGeometry(screenNumber(widget)); - else - return rect; -} - -QDesktopScreenWidget *QDesktopWidgetPrivate::widgetForScreen(QScreen *qScreen) const -{ - foreach (QDesktopScreenWidget *widget, screens) { - if (widget->assignedScreen() == qScreen) - return widget; - } - return nullptr; -} - -void QDesktopWidgetPrivate::_q_updateScreens() -{ - Q_Q(QDesktopWidget); - const QList<QScreen *> screenList = QGuiApplication::screens(); - const int targetLength = screenList.length(); - bool screenCountChanged = false; - - // Re-build our screens list. This is the easiest way to later compute which signals to emit. - // Create new screen widgets as necessary. While iterating, keep the old list in place so - // that widgetForScreen works. - // Furthermore, we note which screens have changed, and compute the overall virtual geometry. - QList<QDesktopScreenWidget *> newScreens; - QList<int> changedScreens; - QRegion virtualGeometry; - - for (int i = 0; i < targetLength; ++i) { - QScreen *qScreen = screenList.at(i); - const QRect screenGeometry = qScreen->geometry(); - QDesktopScreenWidget *screenWidget = widgetForScreen(qScreen); - if (screenWidget) { - // an old screen. update geometry and remember the index in the *new* list - if (screenGeometry != screenWidget->screenGeometry()) { - screenWidget->setScreenGeometry(screenGeometry); - changedScreens.push_back(i); - } - } else { - // a new screen, create a widget and connect the signals. - screenWidget = new QDesktopScreenWidget(qScreen, screenGeometry); - QObject::connect(qScreen, SIGNAL(geometryChanged(QRect)), - q, SLOT(_q_updateScreens()), Qt::QueuedConnection); - QObject::connect(qScreen, SIGNAL(availableGeometryChanged(QRect)), - q, SLOT(_q_availableGeometryChanged()), Qt::QueuedConnection); - QObject::connect(qScreen, SIGNAL(destroyed()), - q, SLOT(_q_updateScreens()), Qt::QueuedConnection); - screenCountChanged = true; - } - // record all the screens and the overall geometry. - newScreens.push_back(screenWidget); - virtualGeometry += screenGeometry; - } - - // Now we apply the accumulated updates. - screens.swap(newScreens); // now [newScreens] is the old screen list - Q_ASSERT(screens.size() == targetLength); - q->setGeometry(virtualGeometry.boundingRect()); - - // Delete the QDesktopScreenWidget that are not used any more. - foreach (QDesktopScreenWidget *screen, newScreens) { - if (!screens.contains(screen)) { - delete screen; - screenCountChanged = true; - } - } - - // Finally, emit the signals. - if (screenCountChanged) { - // Notice that we trigger screenCountChanged even if a screen was removed and another one added, - // in which case the total number of screens did not change. This is the only way for applications - // to notice that a screen was swapped out against another one. -#if QT_DEPRECATED_SINCE(5, 11) -QT_WARNING_PUSH -QT_WARNING_DISABLE_DEPRECATED - emit q->screenCountChanged(targetLength); -QT_WARNING_POP -#endif - } -#if QT_DEPRECATED_SINCE(5, 11) - foreach (int changedScreen, changedScreens) -QT_WARNING_PUSH -QT_WARNING_DISABLE_DEPRECATED - emit q->resized(changedScreen); -QT_WARNING_POP -#endif -} - -void QDesktopWidgetPrivate::_q_availableGeometryChanged() -{ -#if QT_DEPRECATED_SINCE(5, 11) - Q_Q(QDesktopWidget); - if (QScreen *screen = qobject_cast<QScreen *>(q->sender())) -QT_WARNING_PUSH -QT_WARNING_DISABLE_DEPRECATED - emit q->workAreaResized(QGuiApplication::screens().indexOf(screen)); -QT_WARNING_POP -#endif -} - -QDesktopWidget::QDesktopWidget() - : QWidget(*new QDesktopWidgetPrivate, nullptr, Qt::Desktop) -{ - Q_D(QDesktopWidget); - setObjectName(QLatin1String("desktop")); - d->_q_updateScreens(); - connect(qApp, SIGNAL(screenAdded(QScreen*)), this, SLOT(_q_updateScreens())); -#if QT_DEPRECATED_SINCE(5, 11) - connect(qApp, SIGNAL(primaryScreenChanged(QScreen*)), this, SIGNAL(primaryScreenChanged())); -#endif -} - -QDesktopWidget::~QDesktopWidget() -{ -} - -#if QT_DEPRECATED_SINCE(5, 11) -bool QDesktopWidget::isVirtualDesktop() const -{ - return QDesktopWidgetPrivate::isVirtualDesktop(); -} -#endif - -bool QDesktopWidgetPrivate::isVirtualDesktop() -{ - return QGuiApplication::primaryScreen()->virtualSiblings().size() > 1; -} - -QRect QDesktopWidgetPrivate::geometry() -{ - return QGuiApplication::primaryScreen()->virtualGeometry(); -} - -QSize QDesktopWidgetPrivate::size() -{ - return geometry().size(); -} - -int QDesktopWidgetPrivate::width() -{ - return geometry().width(); -} - -int QDesktopWidgetPrivate::height() -{ - return geometry().height(); -} - -#if QT_DEPRECATED_SINCE(5, 11) -int QDesktopWidget::primaryScreen() const -{ - return QDesktopWidgetPrivate::primaryScreen(); -} -#endif - -int QDesktopWidgetPrivate::primaryScreen() -{ - return 0; -} - -int QDesktopWidgetPrivate::numScreens() -{ - return qMax(QGuiApplication::screens().size(), 1); -} - -#if QT_DEPRECATED_SINCE(5, 11) -int QDesktopWidget::numScreens() const -{ - return QDesktopWidgetPrivate::numScreens(); -} - -QWidget *QDesktopWidget::screen(int screen) -{ - Q_D(QDesktopWidget); - if (screen < 0 || screen >= d->screens.length()) - return d->screens.at(0); - return d->screens.at(screen); -} - -const QRect QDesktopWidget::availableGeometry(int screenNo) const -{ - return QDesktopWidgetPrivate::availableGeometry(screenNo); -} -#endif - -const QRect QDesktopWidgetPrivate::availableGeometry(int screenNo) -{ - const QScreen *screen = QDesktopWidgetPrivate::screen(screenNo); - return screen ? screen->availableGeometry() : QRect(); -} - -#if QT_DEPRECATED_SINCE(5, 11) -const QRect QDesktopWidget::screenGeometry(int screenNo) const -{ - return QDesktopWidgetPrivate::screenGeometry(screenNo); -} -#endif - -const QRect QDesktopWidgetPrivate::screenGeometry(int screenNo) -{ - const QScreen *screen = QDesktopWidgetPrivate::screen(screenNo); - return screen ? screen->geometry() : QRect(); -} - -int QDesktopWidget::screenNumber(const QWidget *w) const -{ - return QDesktopWidgetPrivate::screenNumber(w); -} - -int QDesktopWidgetPrivate::screenNumber(const QWidget *w) -{ - if (!w) - return primaryScreen(); - - const QList<QScreen *> allScreens = QGuiApplication::screens(); - QList<QScreen *> screens = allScreens; - if (screens.isEmpty()) // This should never happen - return primaryScreen(); - - // If there is more than one virtual desktop - if (screens.count() != screens.constFirst()->virtualSiblings().count()) { - // Find the root widget, get a QScreen from it and use the - // virtual siblings for checking the window position. - if (const QScreen *winScreen = qt_widget_private(const_cast<QWidget *>(w))->associatedScreen()) - screens = winScreen->virtualSiblings(); - } - - // Get the screen number from window position using screen geometry - // and proper screens. - QRect frame = w->frameGeometry(); - if (!w->isWindow()) - frame.moveTopLeft(w->mapToGlobal(QPoint(0, 0))); - - QScreen *widgetScreen = nullptr; - int largestArea = 0; - foreach (QScreen *screen, screens) { - const QRect deviceIndependentScreenGeometry = - QHighDpi::fromNativePixels(screen->handle()->geometry(), screen); - const QRect intersected = deviceIndependentScreenGeometry.intersected(frame); - int area = intersected.width() * intersected.height(); - if (largestArea < area) { - widgetScreen = screen; - largestArea = area; - } - } - return allScreens.indexOf(widgetScreen); -} - -#if QT_DEPRECATED_SINCE(5, 11) -int QDesktopWidget::screenNumber(const QPoint &p) const -{ - return QDesktopWidgetPrivate::screenNumber(p); -} -#endif - -int QDesktopWidgetPrivate::screenNumber(const QPoint &p) -{ - QScreen *screen = QGuiApplication::screenAt(p); - return screen ? QGuiApplication::screens().indexOf(screen) : primaryScreen(); -} - -QScreen *QDesktopWidgetPrivate::screen(int screenNo) -{ - QList<QScreen *> screens = QGuiApplication::screens(); - if (screenNo == -1) - screenNo = 0; - if (screenNo < 0 || screenNo >= screens.size()) - return nullptr; - return screens.at(screenNo); -} - -void QDesktopWidget::resizeEvent(QResizeEvent *) -{ -} - -QT_END_NAMESPACE - -#include "moc_qdesktopwidget.cpp" -#include "moc_qdesktopwidget_p.cpp" |