QDirectFbWindow Class Reference

#include <qdirectfbwindow.h>

Inheritance diagram for QDirectFbWindow:

Public Functions
IDirectFBSurface *	dfbSurface ()
IDirectFBWindow *	dfbWindow () const
void	lower ()
	Reimplement to be able to let Qt lower windows to the bottom of the desktop. More...
	QDirectFbWindow (QWidget *tlw, QDirectFbInput *inputhandler)
void	raise ()
	Reimplement to be able to let Qt rais windows to the top of the desktop. More...
void	setGeometry (const QRect &rect)
	This function is called by Qt whenever a window is moved or the window is resized. More...
bool	setKeyboardGrabEnabled (bool grab)
bool	setMouseGrabEnabled (bool grab)
void	setOpacity (qreal level)
	Reimplement to be able to let Qt set the opacity level of a window. More...
void	setVisible (bool visible)
	Reimplemented in subclasses to show the surface if visible is true, and hide it if visible is false. More...
Qt::WindowFlags	setWindowFlags (Qt::WindowFlags flags)
	Requests setting the window flags of this surface to type. More...
WId	winId () const
	Reimplement in subclasses to return a handle to the native window. More...
	~QDirectFbWindow ()
Public Functions inherited from QPlatformWindow
virtual QRect	geometry () const
	Returnes the current geometry of a window. More...
virtual QPlatformGLContext *	glContext () const
	Reimplement to return the glContext associated with the window. More...
	QPlatformWindow (QWidget *tlw)
	Constructs a platform window with the given top level widget. More...
virtual void	requestActivateWindow ()
	Reimplement to let Qt be able to request activation/focus for a window. More...
virtual void	setParent (const QPlatformWindow *window)
	This function is called to enable native child widgets in QPA. More...
virtual void	setWindowTitle (const QString &title)
	Reimplement to set the window title to title. More...
QWidget *	widget () const
	Returnes the widget which belongs to the QPlatformWindow. More...
virtual Qt::WindowFlags	windowFlags () const
	Returns the effective window flags for this surface. More...
virtual	~QPlatformWindow ()
	Virtual destructor does not delete its top level widget. More...

Properties
QDirectFBPointer< IDirectFBSurface >	m_dfbSurface
QDirectFBPointer< IDirectFBWindow >	m_dfbWindow
QDirectFbInput *	m_inputHandler

Additional Inherited Members
Protected Variables inherited from QPlatformWindow
QScopedPointer< QPlatformWindowPrivate >	d_ptr

Detailed Description

Definition at line 52 of file qdirectfbwindow.h.

Constructors and Destructors

QDirectFbWindow()

QDirectFbWindow::QDirectFbWindow	(	QWidget *	tlw,
		QDirectFbInput *	inputhandler
	)

Definition at line 52 of file qdirectfbwindow.cpp.

    : QPlatformWindow(tlw), m_inputHandler(inputhandler)
{
    DFBDisplayLayerConfig layerConfig;
    IDirectFBDisplayLayer *layer;

    layer = toDfbScreen(tlw)->dfbLayer();
    toDfbScreen(tlw)->dfbLayer()->GetConfiguration(layer, &layerConfig);

    DFBWindowDescription description;
    memset(&description,0,sizeof(DFBWindowDescription));
    description.flags = DFBWindowDescriptionFlags(DWDESC_WIDTH|DWDESC_HEIGHT|DWDESC_POSX|DWDESC_POSY|DWDESC_SURFACE_CAPS
#if DIRECTFB_MINOR_VERSION >= 1
                                                  |DWDESC_OPTIONS
#endif
                                                  |DWDESC_CAPS);
    description.width = tlw->width();
    description.height = tlw->height();
    description.posx = tlw->x();
    description.posy = tlw->y();

    if (layerConfig.surface_caps & DSCAPS_PREMULTIPLIED)
        description.surface_caps = DSCAPS_PREMULTIPLIED;
    description.pixelformat = layerConfig.pixelformat;

#if DIRECTFB_MINOR_VERSION >= 1
    description.options = DFBWindowOptions(DWOP_ALPHACHANNEL);
#endif
    description.caps = DFBWindowCapabilities(DWCAPS_DOUBLEBUFFER|DWCAPS_ALPHACHANNEL);
    description.surface_caps = DSCAPS_PREMULTIPLIED;

    DFBResult result = layer->CreateWindow(layer, &description, m_dfbWindow.outPtr());
    if (result != DFB_OK) {
        DirectFBError("QDirectFbGraphicsSystemScreen: failed to create window",result);
    }

    m_dfbWindow->SetOpacity(m_dfbWindow.data(), 0xff);

    setVisible(widget()->isVisible());

    m_inputHandler->addWindow(m_dfbWindow.data(), tlw);
}

~QDirectFbWindow()

QDirectFbWindow::~QDirectFbWindow

(

)

Definition at line 95 of file qdirectfbwindow.cpp.

{
    m_inputHandler->removeWindow(m_dfbWindow.data());
    m_dfbWindow->Destroy(m_dfbWindow.data());
}

Functions

dfbSurface()

IDirectFBSurface * QDirectFbWindow::dfbSurface

(

)

Definition at line 202 of file qdirectfbwindow.cpp.

{
    if (!m_dfbSurface) {
        DFBResult res = m_dfbWindow->GetSurface(m_dfbWindow.data(), m_dfbSurface.outPtr());
        if (res != DFB_OK)
            DirectFBError(QDFB_PRETTY, res);
    }

    return m_dfbSurface.data();
}

dfbWindow()

IDirectFBWindow * QDirectFbWindow::dfbWindow

(

)

const

Definition at line 197 of file qdirectfbwindow.cpp.

{
    return m_dfbWindow.data();
}

lower()

void QDirectFbWindow::lower ( )

virtual

Reimplement to be able to let Qt lower windows to the bottom of the desktop.

Reimplemented from QPlatformWindow.

Definition at line 161 of file qdirectfbwindow.cpp.

{
    m_dfbWindow->LowerToBottom(m_dfbWindow.data());
}

raise()

void QDirectFbWindow::raise ( )

virtual

Reimplement to be able to let Qt rais windows to the top of the desktop.

Reimplemented from QPlatformWindow.

Definition at line 156 of file qdirectfbwindow.cpp.

{
    m_dfbWindow->RaiseToTop(m_dfbWindow.data());
}

setGeometry()

void QDirectFbWindow::setGeometry ( const QRect &  rect )

virtual

This function is called by Qt whenever a window is moved or the window is resized.

The resize can happen programatically(from ie. user application) or by the window manager. This means that there is no need to call this function specifically from the window manager callback, instead call QWindowSystemInterface::handleGeometryChange(QWidget *w, const QRect &newRect);

Reimplemented from QPlatformWindow.

Definition at line 101 of file qdirectfbwindow.cpp.

{
    bool isMoveOnly = (rect.topLeft() != geometry().topLeft()) && (rect.size() == geometry().size());

    QPlatformWindow::setGeometry(rect);
    if (widget()->isVisible() && !(widget()->testAttribute(Qt::WA_DontShowOnScreen))) {
        m_dfbWindow->SetBounds(m_dfbWindow.data(), rect.x(),rect.y(),
                               rect.width(), rect.height());
        //Hack. When moving since the WindowSurface of a window becomes invalid when moved
        if (isMoveOnly) { //if resize then windowsurface is updated.
            widget()->windowSurface()->resize(rect.size());
            widget()->update();
        }
    }
}

setKeyboardGrabEnabled()

bool QDirectFbWindow::setKeyboardGrabEnabled

(

bool

grab

)

Definition at line 173 of file qdirectfbwindow.cpp.

{
    DFBResult res;

    if (grab)
        res = m_dfbWindow->GrabKeyboard(m_dfbWindow.data());
    else
        res = m_dfbWindow->UngrabKeyboard(m_dfbWindow.data());

    return res == DFB_OK;
}

setMouseGrabEnabled()

bool QDirectFbWindow::setMouseGrabEnabled

(

bool

grab

)

Definition at line 185 of file qdirectfbwindow.cpp.

{
    DFBResult res;

    if (grab)
        res = m_dfbWindow->GrabPointer(m_dfbWindow.data());
    else
        res = m_dfbWindow->UngrabPointer(m_dfbWindow.data());

    return res == DFB_OK;
}

setOpacity()

void QDirectFbWindow::setOpacity ( qreal  level )

virtual

Reimplement to be able to let Qt set the opacity level of a window.

Reimplemented from QPlatformWindow.

Definition at line 117 of file qdirectfbwindow.cpp.

{
    const quint8 windowOpacity = quint8(level * 0xff);
    m_dfbWindow->SetOpacity(m_dfbWindow.data(), windowOpacity);
}

setVisible()

void QDirectFbWindow::setVisible ( bool  visible )

virtual

Reimplemented in subclasses to show the surface if visible is true, and hide it if visible is false.

Reimplemented from QPlatformWindow.

Definition at line 123 of file qdirectfbwindow.cpp.

Referenced by QDirectFbWindow().

{
    if (visible) {
        int x = geometry().x();
        int y = geometry().y();
        m_dfbWindow->MoveTo(m_dfbWindow.data(), x, y);
    } else {
        QDirectFBPointer<IDirectFBDisplayLayer> displayLayer;
        QDirectFbConvenience::dfbInterface()->GetDisplayLayer(QDirectFbConvenience::dfbInterface(), DLID_PRIMARY, displayLayer.outPtr());

        DFBDisplayLayerConfig config;
        displayLayer->GetConfiguration(displayLayer.data(), &config);
        m_dfbWindow->MoveTo(m_dfbWindow.data(), config. width + 1, config.height + 1);
    }
}

setWindowFlags()

Qt::WindowFlags QDirectFbWindow::setWindowFlags ( Qt::WindowFlags  flags )

virtual

Requests setting the window flags of this surface to type.

Returns the actual flags set.

Reimplemented from QPlatformWindow.

Definition at line 139 of file qdirectfbwindow.cpp.

{
    switch (flags & Qt::WindowType_Mask) {
    case Qt::ToolTip: {
        DFBWindowOptions options;
        m_dfbWindow->GetOptions(m_dfbWindow.data(), &options);
        options = DFBWindowOptions(options | DWOP_GHOST);
        m_dfbWindow->SetOptions(m_dfbWindow.data(), options);
        break; }
    default:
        break;
    }

    m_dfbWindow->SetStackingClass(m_dfbWindow.data(), flags & Qt::WindowStaysOnTopHint ? DWSC_UPPER : DWSC_MIDDLE);
    return flags;
}

winId()

WId QDirectFbWindow::winId ( ) const

virtual

Reimplement in subclasses to return a handle to the native window.

Reimplemented from QPlatformWindow.

Definition at line 166 of file qdirectfbwindow.cpp.

{
    DFBWindowID id;
    m_dfbWindow->GetID(m_dfbWindow.data(), &id);
    return WId(id);
}

Properties

m_dfbSurface

QDirectFBPointer<IDirectFBSurface> QDirectFbWindow::m_dfbSurface

private

Definition at line 76 of file qdirectfbwindow.h.

Referenced by dfbSurface().

m_dfbWindow

QDirectFBPointer<IDirectFBWindow> QDirectFbWindow::m_dfbWindow

private

Definition at line 77 of file qdirectfbwindow.h.

Referenced by dfbSurface(), dfbWindow(), lower(), QDirectFbWindow(), raise(), setGeometry(), setKeyboardGrabEnabled(), setMouseGrabEnabled(), setOpacity(), setVisible(), setWindowFlags(), winId(), and ~QDirectFbWindow().

m_inputHandler

QDirectFbInput* QDirectFbWindow::m_inputHandler

private

Definition at line 78 of file qdirectfbwindow.h.

Referenced by QDirectFbWindow(), and ~QDirectFbWindow().

---

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

• /src/plugins/platforms/directfb/qdirectfbwindow.h
• /src/plugins/platforms/directfb/qdirectfbwindow.cpp