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

#include <qwaylandcursor.h>

Inheritance diagram for QWaylandCursor:
QPlatformCursor

Public Functions

void changeCursor (QCursor *cursor, QWidget *widget)
 This method is called by Qt whenever the cursor graphic should be changed. More...
 
 QWaylandCursor (QWaylandScreen *screen)
 

Public Variables

QWaylandShmBuffermBuffer
 
QWaylandDisplaymDisplay
 

Additional Inherited Members

- 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...
 
- Private Slots inherited from QObject
void deleteLater ()
 Schedules this object for deletion. More...
 
- Private 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)
 
- Private 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...
 
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...
 
- Static Private 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)
 
- Properties inherited from QPlatformCursor
QPlatformScreenscreen
 
- Properties inherited from QObject
QScopedPointer< QObjectDatad_ptr
 
- Static Private Attributes inherited from QObject
static const QMetaObject staticMetaObject
 This variable stores the meta-object for the class. More...
 
static const QMetaObject staticQtMetaObject
 

Detailed Description

Definition at line 51 of file qwaylandcursor.h.

Constructors and Destructors

◆ QWaylandCursor()

QWaylandCursor::QWaylandCursor ( QWaylandScreen screen)

Definition at line 104 of file qwaylandcursor.cpp.

105  : QPlatformCursor(screen)
106  , mBuffer(0)
107  , mDisplay(screen->display())
108 {
109 }
QWaylandShmBuffer * mBuffer
QWaylandDisplay * display() const
QPlatformCursor(QPlatformScreen *)
Constructs a QPlatformCursor for the given screen.
QWaylandDisplay * mDisplay

Functions

◆ changeCursor()

void QWaylandCursor::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 111 of file qwaylandcursor.cpp.

112 {
113  const struct pointer_image *p;
114 
115  if (widget == NULL)
116  return;
117 
118  p = NULL;
119 
120  switch (cursor->shape()) {
121  case Qt::ArrowCursor:
122  p = &pointer_images[cursor->shape()];
123  break;
124  case Qt::UpArrowCursor:
125  case Qt::CrossCursor:
126  case Qt::WaitCursor:
127  break;
128  case Qt::IBeamCursor:
129  p = &pointer_images[cursor->shape()];
130  break;
131  case Qt::SizeVerCursor: /* 5 */
132  case Qt::SizeHorCursor:
133  case Qt::SizeBDiagCursor:
134  case Qt::SizeFDiagCursor:
135  case Qt::SizeAllCursor:
136  case Qt::BlankCursor: /* 10 */
137  break;
138  case Qt::SplitVCursor:
139  case Qt::SplitHCursor:
141  p = &pointer_images[cursor->shape()];
142  break;
143  case Qt::ForbiddenCursor:
144  case Qt::WhatsThisCursor: /* 15 */
145  case Qt::BusyCursor:
146  break;
147  case Qt::OpenHandCursor:
149  case Qt::DragCopyCursor:
150  case Qt::DragMoveCursor: /* 20 */
151  case Qt::DragLinkCursor:
152  p = &pointer_images[cursor->shape()];
153  break;
154 
155  default:
156  case Qt::BitmapCursor:
157  break;
158  }
159 
160  if (!p) {
161  p = &pointer_images[0];
162  qWarning("unhandled cursor %d", cursor->shape());
163  }
164 
165  QImageReader reader(p->filename);
166 
167  if (!reader.canRead())
168  return;
169 
170  if (mBuffer == NULL || mBuffer->size() != reader.size()) {
171  if (mBuffer)
172  delete mBuffer;
173 
174  mBuffer = new QWaylandShmBuffer(mDisplay, reader.size(),
176  }
177 
178  reader.read(mBuffer->image());
179 
181 }
QWaylandShmBuffer * mBuffer
static const struct pointer_image pointer_images[]
const char * filename
void setCursor(QWaylandBuffer *buffer, int32_t x, int32_t y)
Q_CORE_EXPORT void qWarning(const char *,...)
The QImageReader class provides a format independent interface for reading images from files or other...
Definition: qimagereader.h:62
QWaylandDisplay * mDisplay

Properties

◆ mBuffer

QWaylandShmBuffer* QWaylandCursor::mBuffer

Definition at line 56 of file qwaylandcursor.h.

Referenced by changeCursor().

◆ mDisplay

QWaylandDisplay* QWaylandCursor::mDisplay

Definition at line 57 of file qwaylandcursor.h.

Referenced by changeCursor().


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