QXcbIntegration Class Reference

#include <qxcbintegration.h>

Inheritance diagram for QXcbIntegration:

Public Functions
QPixmapData *	createPixmapData (QPixmapData::PixelType type) const
	Factory function for QPixmapData. More...
QPlatformWindow *	createPlatformWindow (QWidget *widget, WId winId) const
	Factory function for QPlatformWindow. More...
QWindowSurface *	createWindowSurface (QWidget *widget, WId winId) const
	Factory function for QWindowSurface. More...
QPlatformFontDatabase *	fontDatabase () const
	Accessor for the platform integrations fontdatabase. More...
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. More...
bool	hasCapability (Capability cap) const
bool	isVirtualDesktop ()
	Returns if the current windowing system configuration defines all the screens to be one desktop(virtual desktop), or if each screen is a desktop of its own. More...
void	moveToScreen (QWidget *window, int screen)
	This function is called when a QWidget is displayed on screen, or the QWidget is to be displayed on a new screen. More...
QPlatformNativeInterface *	nativeInterface () const
	QXcbIntegration ()
QList< QPlatformScreen * >	screens () const
	Accessor function to a list of all the screens on the current system. More...
	~QXcbIntegration ()
Public Functions inherited from QPlatformIntegration
virtual QPlatformClipboard *	clipboard () const
	Accessor for the platform integrations clipboard. More...
virtual QPlatformEventLoopIntegration *	createEventLoopIntegration () const
	Factory function for the eventloop integration interface. More...
virtual	~QPlatformIntegration ()

Private Functions
bool	hasOpenGL () const

Properties
QXcbConnection *	m_connection
QPlatformFontDatabase *	m_fontDatabase
QPlatformNativeInterface *	m_nativeInterface
QList< QPlatformScreen * >	m_screens

Additional Inherited Members
Public Types inherited from QPlatformIntegration
enum	Capability { ThreadedPixmaps = 1, OpenGL = 2 }

Detailed Description

Definition at line 52 of file qxcbintegration.h.

Constructors and Destructors

QXcbIntegration()

QXcbIntegration::QXcbIntegration

(

)

Definition at line 61 of file qxcbintegration.cpp.

    : m_connection(new QXcbConnection)
{
    foreach (QXcbScreen *screen, m_connection->screens())
        m_screens << screen;

    m_fontDatabase = new QGenericUnixFontDatabase();
    m_nativeInterface = new QXcbNativeInterface;
}

~QXcbIntegration()

QXcbIntegration::~QXcbIntegration

(

)

Definition at line 71 of file qxcbintegration.cpp.

{
    delete m_connection;
}

Functions

createPixmapData()

QPixmapData * QXcbIntegration::createPixmapData ( QPixmapData::PixelType  type ) const

virtual

Factory function for QPixmapData.

PixelType can be either PixmapType or BitmapType.

See also

QPixmapData

Implements QPlatformIntegration.

Definition at line 85 of file qxcbintegration.cpp.

{
    return new QRasterPixmapData(type);
}

createPlatformWindow()

QPlatformWindow * QXcbIntegration::createPlatformWindow ( QWidget *  widget, WId  winId  ) const

virtual

Factory function for QPlatformWindow.

The widget parameter is a pointer to the top level widget(tlw) which the QPlatformWindow is suppose to be created for. The WId handle is actually never used, but there for future reference. Its purpose is if it is going to be possible to create QPlatformWindows on existing WId.

All tlw has to have a QPlatformWindow, and it will be created when the QPlatformWindow is set to be visible for the first time. If the tlw's window flags are changed, or if the tlw's QPlatformWindowFormat is changed, then the tlw's QPlatformWindow is deleted and a new one is created.

See also

QPlatformWindow, QPlatformWindowFormat

createWindowSurface(QWidget *widget, WId winId) const

Implements QPlatformIntegration.

Definition at line 90 of file qxcbintegration.cpp.

{
    Q_UNUSED(winId);
    return new QXcbWindow(widget);
}

createWindowSurface()

QWindowSurface * QXcbIntegration::createWindowSurface ( QWidget *  widget, WId  winId  ) const

virtual

Factory function for QWindowSurface.

The QWidget parameter is a pointer to the top level widget(tlw) the window surface is created for. A QPlatformWindow is always created before the QWindowSurface for tlw where the widget also requires a WindowSurface. It is possible to create top level QWidgets without a QWindowSurface by specifying QPlatformWindowFormat::setWindowSurface(false) for the tlw QPlatformWindowFormat.

See also

QWindowSurface

createPlatformWindow(QWidget *widget, WId winId = 0) const

Implements QPlatformIntegration.

Definition at line 96 of file qxcbintegration.cpp.

{
    Q_UNUSED(winId);
    return new QXcbWindowSurface(widget);
}

fontDatabase()

QPlatformFontDatabase * QXcbIntegration::fontDatabase ( ) const

virtual

Accessor for the platform integrations fontdatabase.

Default implementation returns a default QPlatformFontDatabase.

See also

QPlatformFontDatabase

Reimplemented from QPlatformIntegration.

Definition at line 118 of file qxcbintegration.cpp.

{
    return m_fontDatabase;
}

grabWindow()

QPixmap QXcbIntegration::grabWindow ( WId  window, int  x, int  y, int  width, int  height  ) const

virtual

This function is called when Qt needs to be able to grab the content of a window.

Returnes the content of the window specified with the WId handle within the boundaries of QRect(x,y,width,height).

Reimplemented from QPlatformIntegration.

Definition at line 123 of file qxcbintegration.cpp.

{
    Q_UNUSED(window);
    Q_UNUSED(x);
    Q_UNUSED(y);
    Q_UNUSED(width);
    Q_UNUSED(height);
    return QPixmap();
}

hasCapability()

bool QXcbIntegration::hasCapability ( QPlatformIntegration::Capability  cap ) const

virtual

Reimplemented from QPlatformIntegration.

Definition at line 76 of file qxcbintegration.cpp.

{
    switch (cap) {
    case ThreadedPixmaps: return true;
    case OpenGL: return hasOpenGL();
    default: return QPlatformIntegration::hasCapability(cap);
    }
}

hasOpenGL()

bool QXcbIntegration::hasOpenGL ( ) const

private

Definition at line 134 of file qxcbintegration.cpp.

Referenced by hasCapability().

{
#if defined(XCB_USE_GLX)
    return true;
#elif defined(XCB_USE_EGL)
    return m_connection->hasEgl();
#elif defined(XCB_USE_DRI2)
    if (m_connection->hasSupportForDri2()) {
        return true;
    }
#endif
    return false;
}

isVirtualDesktop()

bool QXcbIntegration::isVirtualDesktop ( )

virtual

Returns if the current windowing system configuration defines all the screens to be one desktop(virtual desktop), or if each screen is a desktop of its own.

Default implementation returns false.

Reimplemented from QPlatformIntegration.

Definition at line 113 of file qxcbintegration.cpp.

{
    return false;
}

moveToScreen()

void QXcbIntegration::moveToScreen ( QWidget *  window, int  screen  )

virtual

This function is called when a QWidget is displayed on screen, or the QWidget is to be displayed on a new screen.

The QWidget parameter is a pointer to the top level widget and the int parameter is the index to the screen in QList<QPlatformScreen *> screens() const.

Default implementation does nothing.

See also

screens() const

Reimplemented from QPlatformIntegration.

Definition at line 107 of file qxcbintegration.cpp.

{
    Q_UNUSED(window);
    Q_UNUSED(screen);
}

nativeInterface()

QPlatformNativeInterface * QXcbIntegration::nativeInterface ( ) const

virtual

Reimplemented from QPlatformIntegration.

Definition at line 148 of file qxcbintegration.cpp.

{
    return m_nativeInterface;
}

screens()

QList< QPlatformScreen * > QXcbIntegration::screens ( ) const

virtual

Accessor function to a list of all the screens on the current system.

The screen with the index == 0 is the default/main screen.

Implements QPlatformIntegration.

Definition at line 102 of file qxcbintegration.cpp.

{
    return m_screens;
}

Properties

m_connection

QXcbConnection* QXcbIntegration::m_connection

private

Definition at line 75 of file qxcbintegration.h.

Referenced by hasOpenGL(), QXcbIntegration(), and ~QXcbIntegration().

m_fontDatabase

QPlatformFontDatabase* QXcbIntegration::m_fontDatabase

private

Definition at line 77 of file qxcbintegration.h.

Referenced by fontDatabase(), and QXcbIntegration().

m_nativeInterface

QPlatformNativeInterface* QXcbIntegration::m_nativeInterface

private

Definition at line 78 of file qxcbintegration.h.

Referenced by nativeInterface(), and QXcbIntegration().

m_screens

QList<QPlatformScreen *> QXcbIntegration::m_screens

private

Definition at line 74 of file qxcbintegration.h.

Referenced by QXcbIntegration(), and screens().

---

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

• /src/plugins/platforms/xcb/qxcbintegration.h
• /src/plugins/platforms/xcb/qxcbintegration.cpp