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

#include <qdirectfbcursor.h>

Inheritance diagram for QDirectFBCursor:
QPlatformCursor QObject

Public Functions

void changeCursor (QCursor *cursor, QWidget *window)
 This method is called by Qt whenever the cursor graphic should be changed. More...
 
 QDirectFBCursor (QPlatformScreen *screen)
 
- Public Functions inherited from QPlatformCursor
virtual void pointerEvent (const QMouseEvent &event)
 This method is called by Qt whenever a QMouseEvent is generated by the underlying pointer input. More...
 
virtual QPoint pos () const
 
 QPlatformCursor (QPlatformScreen *)
 Constructs a QPlatformCursor for the given screen. More...
 
virtual void setPos (const QPoint &pos)
 
- 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...
 

Properties

QScopedPointer< QPlatformCursorImagem_image
 

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 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 QPlatformCursor
QPlatformScreenscreen
 
- 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 qdirectfbcursor.h.

Constructors and Destructors

◆ QDirectFBCursor()

QDirectFBCursor::QDirectFBCursor ( QPlatformScreen screen)

Definition at line 47 of file qdirectfbcursor.cpp.

48  : QPlatformCursor(screen)
49 {
50  m_image.reset(new QPlatformCursorImage(0, 0, 0, 0, 0, 0));
51 }
QScopedPointer< QPlatformCursorImage > m_image
void reset(T *other=0)
Deletes the existing object it is pointing to if any, and sets its pointer to other.
QPlatformCursor(QPlatformScreen *)
Constructs a QPlatformCursor for the given screen.
The QPlatformCursorImage class provides a set of graphics intended to be used as cursors.

Functions

◆ changeCursor()

void QDirectFBCursor::changeCursor ( QCursor widgetCursor,
QWidget widget 
)
virtual

This method is called by Qt whenever the cursor graphic should be changed.

Implementation of this method is mandatory for a subclass of QPlatformCursor.

widgetCursor is a pointer to the QCursor that should be displayed.

widget is a pointer to the widget currently displayed at QCursor::pos(). Note that this may be 0 if the current position is not occupied by a displayed widget.

See also
QCursor::pos()

Implements QPlatformCursor.

Definition at line 53 of file qdirectfbcursor.cpp.

54 {
55  int xSpot;
56  int ySpot;
57  QPixmap map;
58 
59  if (cursor->shape() != Qt::BitmapCursor) {
60  m_image->set(cursor->shape());
61  xSpot = m_image->hotspot().x();
62  ySpot = m_image->hotspot().y();
63  QImage *i = m_image->image();
64  map = QPixmap::fromImage(*i);
65  } else {
66  QPoint point = cursor->hotSpot();
67  xSpot = point.x();
68  ySpot = point.y();
69  map = cursor->pixmap();
70  }
71 
72  DFBResult res;
73  IDirectFBDisplayLayer *layer = toDfbLayer(screen);
74  IDirectFBSurface* surface(QDirectFbConvenience::dfbSurfaceForPlatformPixmap(map.pixmapData()));
75 
76  res = layer->SetCooperativeLevel(layer, DLSCL_ADMINISTRATIVE);
77  if (res != DFB_OK) {
78  DirectFBError("Failed to set DLSCL_ADMINISTRATIVE", res);
79  return;
80  }
81 
82  layer->SetCursorShape(layer, surface, xSpot, ySpot);
83  layer->SetCooperativeLevel(layer, DLSCL_SHARED);
84 }
static QPixmap fromImage(const QImage &image, Qt::ImageConversionFlags flags=Qt::AutoColor)
Converts the given image to a pixmap using the specified flags to control the conversion.
Definition: qpixmap.cpp:2197
IDirectFBDisplayLayer * toDfbLayer(QPlatformScreen *screen)
static IDirectFBSurface * dfbSurfaceForPlatformPixmap(QPixmapData *)
QFuture< void > map(Sequence &sequence, MapFunction function)
The QImage class provides a hardware-independent image representation that allows direct access to th...
Definition: qimage.h:87
QImage * image()
Return the cursor graphic as a pointer to a QImage.
QScopedPointer< QPlatformCursorImage > m_image
QPoint hotspot()
Return the cursor&#39;s hotspot.
void set(const uchar *data, const uchar *mask, int width, int height, int hotX, int hotY)
Sets the cursor image to the graphic represented by the combination of data and mask, with dimensions given by width and height and a hotspot at the point specified by (hx, hy).
The QPoint class defines a point in the plane using integer precision.
Definition: qpoint.h:53
QPlatformScreen * screen
int y() const
Returns the y coordinate of this point.
Definition: qpoint.h:131
The QPixmap class is an off-screen image representation that can be used as a paint device...
Definition: qpixmap.h:71
int x() const
Returns the x coordinate of this point.
Definition: qpoint.h:128
QPixmapData * pixmapData() const
Definition: qpixmap.cpp:2277

Properties

◆ m_image

QScopedPointer<QPlatformCursorImage> QDirectFBCursor::m_image
private

Definition at line 62 of file qdirectfbcursor.h.

Referenced by changeCursor(), and QDirectFBCursor().


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