diff options
Diffstat (limited to 'src/gui/kernel/qplatformscreen.cpp')
-rw-r--r-- | src/gui/kernel/qplatformscreen.cpp | 75 |
1 files changed, 69 insertions, 6 deletions
diff --git a/src/gui/kernel/qplatformscreen.cpp b/src/gui/kernel/qplatformscreen.cpp index edf546799f..2fb53fe16b 100644 --- a/src/gui/kernel/qplatformscreen.cpp +++ b/src/gui/kernel/qplatformscreen.cpp @@ -40,6 +40,7 @@ #include <qpa/qplatformintegration.h> #include <QtGui/qscreen.h> #include <QtGui/qwindow.h> +#include <private/qhighdpiscaling_p.h> QT_BEGIN_NAMESPACE @@ -97,6 +98,23 @@ QWindow *QPlatformScreen::topLevelAt(const QPoint & pos) const } /*! + Find the sibling screen corresponding to \a globalPos. + + Returns this screen if no suitable screen is found at the position. + */ +const QPlatformScreen *QPlatformScreen::screenForPosition(const QPoint &point) const +{ + if (!geometry().contains(point)) { + Q_FOREACH (const QPlatformScreen* screen, virtualSiblings()) { + if (screen->geometry().contains(point)) + return screen; + } + } + return this; +} + + +/*! Returns a list of all the platform screens that are part of the same virtual desktop. @@ -156,11 +174,13 @@ QDpi QPlatformScreen::logicalDpi() const } /*! - Reimplement this function in subclass to return the device pixel - ratio for the screen. This is the ratio between physical pixels - and device-independent pixels. + Reimplement this function in subclass to return the device pixel ratio + for the screen. This is the ratio between physical pixels and the + device-independent pixels of the windowing system. The default + implementation returns 1.0. - \sa QPlatformWindow::devicePixelRatio(); + \sa QPlatformWindow::devicePixelRatio() + \sa QPlatformScreen::pixelDensity() */ qreal QPlatformScreen::devicePixelRatio() const { @@ -168,6 +188,24 @@ qreal QPlatformScreen::devicePixelRatio() const } /*! + Reimplement this function in subclass to return the pixel density of the + screen. This is the scale factor needed to make a low-dpi application + usable on this screen. The default implementation returns 1.0. + + Returning something else than 1.0 from this function causes Qt to + apply the scale factor to the application's coordinate system. + This is different from devicePixelRatio, which reports a scale + factor already applied by the windowing system. A platform plugin + typically implements one (or none) of these two functions. + + \sa QPlatformWindow::devicePixelRatio() +*/ +qreal QPlatformScreen::pixelDensity() const +{ + return 1.0; +} + +/*! Reimplement this function in subclass to return the vertical refresh rate of the screen, in Hz. @@ -290,8 +328,8 @@ void QPlatformScreen::resizeMaximizedWindows() // 'screen()' still has the old geometry info while 'this' has the new geometry info const QRect oldGeometry = screen()->geometry(); const QRect oldAvailableGeometry = screen()->availableGeometry(); - const QRect newGeometry = geometry(); - const QRect newAvailableGeometry = availableGeometry(); + const QRect newGeometry = deviceIndependentGeometry(); + const QRect newAvailableGeometry = QHighDpi::fromNative(availableGeometry(), QHighDpiScaling::factor(this), newGeometry.topLeft()); // make sure maximized and fullscreen windows are updated for (int i = 0; i < windows.size(); ++i) { @@ -393,6 +431,13 @@ QRect QPlatformScreen::mapBetween(Qt::ScreenOrientation a, Qt::ScreenOrientation return rect; } +QRect QPlatformScreen::deviceIndependentGeometry() const +{ + qreal scaleFactor = QHighDpiScaling::factor(this); + QRect nativeGeometry = geometry(); + return QRect(nativeGeometry.topLeft(), QHighDpi::fromNative(nativeGeometry.size(), scaleFactor)); +} + /*! Returns a hint about this screen's subpixel layout structure. @@ -420,4 +465,22 @@ QPlatformScreen::SubpixelAntialiasingType QPlatformScreen::subpixelAntialiasingT return static_cast<QPlatformScreen::SubpixelAntialiasingType>(type); } +/*! + Returns the current power state. + + The default implementation always returns PowerStateOn. +*/ +QPlatformScreen::PowerState QPlatformScreen::powerState() const +{ + return PowerStateOn; +} + +/*! + Sets the power state for this screen. +*/ +void QPlatformScreen::setPowerState(PowerState state) +{ + Q_UNUSED(state); +} + QT_END_NAMESPACE |