Qt 4.8
Public Functions | Public Variables | Properties | List of all members
QDirectFbScreen Class Reference

#include <qdirectfbscreen.h>

Inheritance diagram for QDirectFbScreen:
QPlatformScreen QObject

Public Functions

int depth () const
 Reimplement in subclass to return current depth of the screen. More...
 
IDirectFBDisplayLayer * dfbLayer () const
 
QImage::Format format () const
 Reimplement in subclass to return the image format which corresponds to the screen format. More...
 
QRect geometry () const
 Reimplement in subclass to return the pixel geometry of the screen. More...
 
QSize physicalSize () const
 Reimplement this function in subclass to return the physical size of the screen. More...
 
 QDirectFbScreen (int display)
 
- Public Functions inherited from QPlatformScreen
virtual QRect availableGeometry () const
 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. More...
 
virtual void setDirty (const QRect &)
 
virtual QWidgettopLevelAt (const QPoint &point) const
 Return the given top level widget for a given position. More...
 
virtual ~QPlatformScreen ()
 
- Public Functions inherited from QObject
bool blockSignals (bool b)
 If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). More...
 
const QObjectListchildren () const
 Returns a list of child objects. More...
 
bool connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const
 
bool disconnect (const char *signal=0, const QObject *receiver=0, const char *member=0)
 
bool disconnect (const QObject *receiver, const char *member=0)
 
void dumpObjectInfo ()
 Dumps information about signal connections, etc. More...
 
void dumpObjectTree ()
 Dumps a tree of children to the debug output. More...
 
QList< QByteArraydynamicPropertyNames () const
 Returns the names of all properties that were dynamically added to the object using setProperty(). More...
 
virtual bool event (QEvent *)
 This virtual function receives events to an object and should return true if the event e was recognized and processed. More...
 
virtual bool eventFilter (QObject *, QEvent *)
 Filters events if this object has been installed as an event filter for the watched object. More...
 
template<typename T >
findChild (const QString &aName=QString()) const
 Returns the child of this object that can be cast into type T and that is called name, or 0 if there is no such object. More...
 
template<typename T >
QList< T > findChildren (const QString &aName=QString()) const
 Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects. More...
 
template<typename T >
QList< T > findChildren (const QRegExp &re) const
 
bool inherits (const char *classname) const
 Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false. More...
 
void installEventFilter (QObject *)
 Installs an event filter filterObj on this object. More...
 
bool isWidgetType () const
 Returns true if the object is a widget; otherwise returns false. More...
 
void killTimer (int id)
 Kills the timer with timer identifier, id. More...
 
virtual const QMetaObjectmetaObject () const
 Returns a pointer to the meta-object of this object. More...
 
void moveToThread (QThread *thread)
 Changes the thread affinity for this object and its children. More...
 
QString objectName () const
 
QObjectparent () const
 Returns a pointer to the parent object. More...
 
QVariant property (const char *name) const
 Returns the value of the object's name property. More...
 
Q_INVOKABLE QObject (QObject *parent=0)
 Constructs an object with parent object parent. More...
 
void removeEventFilter (QObject *)
 Removes an event filter object obj from this object. More...
 
void setObjectName (const QString &name)
 
void setParent (QObject *)
 Makes the object a child of parent. More...
 
bool setProperty (const char *name, const QVariant &value)
 Sets the value of the object's name property to value. More...
 
void setUserData (uint id, QObjectUserData *data)
 
bool signalsBlocked () const
 Returns true if signals are blocked; otherwise returns false. More...
 
int startTimer (int interval)
 Starts a timer and returns a timer identifier, or returns zero if it could not start a timer. More...
 
QThreadthread () const
 Returns the thread in which the object lives. More...
 
QObjectUserDatauserData (uint id) const
 
virtual ~QObject ()
 Destroys the object, deleting all its child objects. More...
 

Public Variables

int m_depth
 
QImage::Format m_format
 
QRect m_geometry
 
QDirectFBPointer< IDirectFBDisplayLayer > m_layer
 
QSize m_physicalSize
 

Properties

QScopedPointer< QDirectFBCursorm_cursor
 

Additional Inherited Members

- Public Slots inherited from QObject
void deleteLater ()
 Schedules this object for deletion. More...
 
- Signals inherited from QObject
void destroyed (QObject *=0)
 This signal is emitted immediately before the object obj is destroyed, and can not be blocked. More...
 
- Static Public Functions inherited from QPlatformScreen
static QPlatformScreenplatformScreenForWidget (const QWidget *widget)
 
- Static Public Functions inherited from QObject
static bool connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection)
 Creates a connection of the given type from the signal in the sender object to the method in the receiver object. More...
 
static bool connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)
 
static bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member)
 Disconnects signal in object sender from method in object receiver. More...
 
static bool disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member)
 
static uint registerUserData ()
 
static QString tr (const char *sourceText, const char *comment=0, int n=-1)
 
static QString trUtf8 (const char *sourceText, const char *comment=0, int n=-1)
 
- Static Public Variables inherited from QObject
static const QMetaObject staticMetaObject
 This variable stores the meta-object for the class. More...
 
- Protected Functions inherited from QObject
virtual void childEvent (QChildEvent *)
 This event handler can be reimplemented in a subclass to receive child events. More...
 
virtual void connectNotify (const char *signal)
 This virtual function is called when something has been connected to signal in this object. More...
 
virtual void customEvent (QEvent *)
 This event handler can be reimplemented in a subclass to receive custom events. More...
 
virtual void disconnectNotify (const char *signal)
 This virtual function is called when something has been disconnected from signal in this object. More...
 
 QObject (QObjectPrivate &dd, QObject *parent=0)
 
int receivers (const char *signal) const
 Returns the number of receivers connected to the signal. More...
 
QObjectsender () const
 Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns 0. More...
 
int senderSignalIndex () const
 
virtual void timerEvent (QTimerEvent *)
 This event handler can be reimplemented in a subclass to receive timer events for the object. More...
 
- Protected Variables inherited from QObject
QScopedPointer< QObjectDatad_ptr
 
- Static Protected Variables inherited from QObject
static const QMetaObject staticQtMetaObject
 

Detailed Description

Definition at line 55 of file qdirectfbscreen.h.

Constructors and Destructors

◆ QDirectFbScreen()

QDirectFbScreen::QDirectFbScreen ( int  display)

Definition at line 47 of file qdirectfbscreen.cpp.

48  : QPlatformScreen()
50 {
51  m_layer->SetCooperativeLevel(m_layer.data(), DLSCL_SHARED);
52 
53  DFBDisplayLayerConfig config;
54  m_layer->GetConfiguration(m_layer.data(), &config);
55 
56  m_format = QDirectFbConvenience::imageFormatFromSurfaceFormat(config.pixelformat, config.surface_caps);
57  m_geometry = QRect(0, 0, config.width, config.height);
58  const int dpi = 72;
59  const qreal inch = 25.4;
61  m_physicalSize = QSize(config.width, config.height) * inch / dpi;
62 
63  m_cursor.reset(new QDirectFBCursor(this));
64 }
double qreal
Definition: qglobal.h:1193
static IDirectFBDisplayLayer * dfbDisplayLayer(int display=DLID_PRIMARY)
The QPlatformScreen class provides an abstraction for visual displays.
T * data() const
Returns the value of the pointer referenced by this object.
static QImage::Format imageFormatFromSurfaceFormat(const DFBSurfacePixelFormat format, const DFBSurfaceCapabilities caps)
static int colorDepthForSurface(const DFBSurfacePixelFormat format)
QScopedPointer< QDirectFBCursor > m_cursor
Q_GUI_EXPORT EGLDisplay display()
Definition: qegl.cpp:589
void reset(T *other=0)
Deletes the existing object it is pointing to if any, and sets its pointer to other.
QImage::Format m_format
The QRect class defines a rectangle in the plane using integer precision.
Definition: qrect.h:58
QDirectFBPointer< IDirectFBDisplayLayer > m_layer
The QSize class defines the size of a two-dimensional object using integer point precision.
Definition: qsize.h:53

Functions

◆ depth()

int QDirectFbScreen::depth ( ) const
inlinevirtual

Reimplement in subclass to return current depth of the screen.

Implements QPlatformScreen.

Definition at line 61 of file qdirectfbscreen.h.

61 { return m_depth; }

◆ dfbLayer()

IDirectFBDisplayLayer * QDirectFbScreen::dfbLayer ( ) const

Definition at line 66 of file qdirectfbscreen.cpp.

Referenced by QDirectFbIntegration::initializeInput(), physicalSize(), and QDirectFbWindow::QDirectFbWindow().

67 {
68  return m_layer.data();
69 }
T * data() const
Returns the value of the pointer referenced by this object.
QDirectFBPointer< IDirectFBDisplayLayer > m_layer

◆ format()

QImage::Format QDirectFbScreen::format ( ) const
inlinevirtual

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

Implements QPlatformScreen.

Definition at line 62 of file qdirectfbscreen.h.

62 { return m_format; }
QImage::Format m_format

◆ geometry()

QRect QDirectFbScreen::geometry ( ) const
inlinevirtual

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

Implements QPlatformScreen.

Definition at line 60 of file qdirectfbscreen.h.

60 { return m_geometry; }

◆ physicalSize()

QSize QDirectFbScreen::physicalSize ( ) const
inlinevirtual

Reimplement this function in subclass to return the physical size of the screen.

This function is used by QFont to convert point sizes to pixel sizes.

The default implementation takes the pixel size of the screen, considers a resolution of 100 dots per inch, and returns the calculated physical size. A device with a screen that has different resolutions will need to be supported by a suitable reimplementation of this function.

Reimplemented from QPlatformScreen.

Definition at line 63 of file qdirectfbscreen.h.

63 { return m_physicalSize; }

Properties

◆ m_cursor

QScopedPointer<QDirectFBCursor> QDirectFbScreen::m_cursor
private

Definition at line 77 of file qdirectfbscreen.h.

Referenced by QDirectFbScreen().

◆ m_depth

int QDirectFbScreen::m_depth

Definition at line 70 of file qdirectfbscreen.h.

Referenced by depth(), and QDirectFbScreen().

◆ m_format

QImage::Format QDirectFbScreen::m_format

Definition at line 71 of file qdirectfbscreen.h.

Referenced by format(), and QDirectFbScreen().

◆ m_geometry

QRect QDirectFbScreen::m_geometry

Definition at line 69 of file qdirectfbscreen.h.

Referenced by geometry(), and QDirectFbScreen().

◆ m_layer

QDirectFBPointer<IDirectFBDisplayLayer> QDirectFbScreen::m_layer

Definition at line 74 of file qdirectfbscreen.h.

Referenced by dfbLayer(), and QDirectFbScreen().

◆ m_physicalSize

QSize QDirectFbScreen::m_physicalSize

Definition at line 72 of file qdirectfbscreen.h.

Referenced by physicalSize(), and QDirectFbScreen().


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