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Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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Public Member Functions | List of all members
QPlatformPlaceholderScreen Class Reference

#include <qplatformscreen.h>

+ Inheritance diagram for QPlatformPlaceholderScreen:
+ Collaboration diagram for QPlatformPlaceholderScreen:

Public Member Functions

 QPlatformPlaceholderScreen (bool virtualSibling=true)
 
bool isPlaceholder () const override
 
QRect geometry () const override
 Reimplement in subclass to return the pixel geometry of the screen.
 
QRect availableGeometry () const override
 Reimplement in subclass to return the pixel geometry of the available space This normally is the desktop screen minus the task manager, global menubar etc.
 
int depth () const override
 Reimplement in subclass to return current depth of the screen.
 
QImage::Format format () const override
 Reimplement in subclass to return the image format which corresponds to the screen format.
 
QList< QPlatformScreen * > virtualSiblings () const override
 Returns a list of all the platform screens that are part of the same virtual desktop.
 
- Public Member Functions inherited from QPlatformScreen
 QPlatformScreen ()
 
virtual ~QPlatformScreen ()
 
virtual QPixmap grabWindow (WId window, int x, int y, int width, int height) const
 This function is called when Qt needs to be able to grab the content of a window.
 
virtual QColorSpace colorSpace () const
 
virtual QSizeF physicalSize () const
 Reimplement this function in subclass to return the physical size of the screen, in millimeters.
 
virtual QDpi logicalDpi () const
 Reimplement this function in subclass to return the logical horizontal and vertical dots per inch metrics of the screen.
 
virtual QDpi logicalBaseDpi () const
 Reimplement to return the base logical DPI for the platform.
 
virtual qreal devicePixelRatio () const
 Reimplement this function in subclass to return the device pixel ratio for the screen.
 
virtual qreal refreshRate () const
 Reimplement this function in subclass to return the vertical refresh rate of the screen, in Hz.
 
virtual Qt::ScreenOrientation nativeOrientation () const
 Reimplement this function in subclass to return the native orientation of the screen, e.g.
 
virtual Qt::ScreenOrientation orientation () const
 Reimplement this function in subclass to return the current orientation of the screen, for example based on accelerometer data to determine the device orientation.
 
virtual QWindow * topLevelAt (const QPoint &point) const
 Return the given top level window for a given position.
 
QWindowList windows () const
 Return all windows residing on this screen.
 
const QPlatformScreen * screenForPosition (const QPoint &point) const
 Find the sibling screen corresponding to globalPos.
 
QScreen * screen () const
 
virtual QString name () const
 
virtual QString manufacturer () const
 Reimplement this function in subclass to return the manufacturer of this screen.
 
virtual QString model () const
 Reimplement this function in subclass to return the model of this screen.
 
virtual QString serialNumber () const
 Reimplement this function in subclass to return the serial number of this screen.
 
virtual QPlatformCursor * cursor () const
 Reimplement this function in subclass to return the cursor of the screen.
 
virtual SubpixelAntialiasingType subpixelAntialiasingTypeHint () const
 Returns a hint about this screen's subpixel layout structure.
 
virtual PowerState powerState () const
 Returns the current power state.
 
virtual void setPowerState (PowerState state)
 Sets the power state for this screen.
 
virtual QList< Mode > modes () const
 Reimplement this function in subclass to return the list of modes for this screen.
 
virtual int currentMode () const
 Reimplement this function in subclass to return the index of the current mode from the modes list.
 
virtual int preferredMode () const
 Reimplement this function in subclass to return the preferred mode index from the modes list.
 

Additional Inherited Members

- Public Types inherited from QPlatformScreen
enum  SubpixelAntialiasingType {
  Subpixel_None , Subpixel_RGB , Subpixel_BGR , Subpixel_VRGB ,
  Subpixel_VBGR
}
 
enum  PowerState { PowerStateOn , PowerStateStandby , PowerStateSuspend , PowerStateOff }
 
- Static Public Member Functions inherited from QPlatformScreen
static QPlatformScreen * platformScreenForWindow (const QWindow *window)
 
static int angleBetween (Qt::ScreenOrientation a, Qt::ScreenOrientation b)
 
static QTransform transformBetween (Qt::ScreenOrientation a, Qt::ScreenOrientation b, const QRect &target)
 
static QRect mapBetween (Qt::ScreenOrientation a, Qt::ScreenOrientation b, const QRect &rect)
 
static QDpi overrideDpi (const QDpi &in)
 
- Protected Member Functions inherited from QPlatformScreen
void resizeMaximizedWindows ()
 Convenience method to resize all the maximized and fullscreen windows of this platform screen.
 
- Protected Attributes inherited from QPlatformScreen
QScopedPointer< QPlatformScreenPrivate > d_ptr
 

Detailed Description

Definition at line 141 of file qplatformscreen.h.

Constructor & Destructor Documentation

◆ QPlatformPlaceholderScreen()

QPlatformPlaceholderScreen::QPlatformPlaceholderScreen ( bool virtualSibling = true)
inline

Definition at line 149 of file qplatformscreen.h.

Member Function Documentation

◆ availableGeometry()

QRect QPlatformPlaceholderScreen::availableGeometry ( ) const
inlineoverridevirtual

Reimplement in subclass to return the pixel geometry of the available space This normally is the desktop screen minus the task manager, global menubar etc.

Reimplemented from QPlatformScreen.

Definition at line 152 of file qplatformscreen.h.

◆ depth()

int QPlatformPlaceholderScreen::depth ( ) const
inlineoverridevirtual

Reimplement in subclass to return current depth of the screen.

Implements QPlatformScreen.

Definition at line 153 of file qplatformscreen.h.

◆ format()

QImage::Format QPlatformPlaceholderScreen::format ( ) const
inlineoverridevirtual

Reimplement in subclass to return the image format which corresponds to the screen format.

Implements QPlatformScreen.

Definition at line 154 of file qplatformscreen.h.

References QImage::Format_RGB32.

◆ geometry()

QRect QPlatformPlaceholderScreen::geometry ( ) const
inlineoverridevirtual

Reimplement in subclass to return the pixel geometry of the screen.

Implements QPlatformScreen.

Definition at line 151 of file qplatformscreen.h.

◆ isPlaceholder()

bool QPlatformPlaceholderScreen::isPlaceholder ( ) const
inlineoverridevirtual

Reimplemented from QPlatformScreen.

Definition at line 150 of file qplatformscreen.h.

◆ virtualSiblings()

QList< QPlatformScreen * > QPlatformPlaceholderScreen::virtualSiblings ( ) const
overridevirtual

Returns a list of all the platform screens that are part of the same virtual desktop.

Screens part of the same virtual desktop share a common coordinate system, and windows can be freely moved between them.

Reimplemented from QPlatformScreen.

Definition at line 531 of file qplatformscreen.cpp.

References QScreen::handle(), QPlatformScreen::screen(), and QGuiApplication::screens().

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The documentation for this class was generated from the following files: