Qt 4.8
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#include <qgraphicsshadereffect_p.h>
Public Functions | |
QByteArray | pixelShaderFragment () const |
QGraphicsShaderEffect (QObject *parent=0) | |
void | setPixelShaderFragment (const QByteArray &code) |
virtual | ~QGraphicsShaderEffect () |
Public Functions inherited from QGraphicsEffect | |
QRectF | boundingRect () const |
Returns the effective bounding rectangle for this effect, i.e., the bounding rectangle of the source in device coordinates, adjusted by any margins applied by the effect itself. More... | |
virtual QRectF | boundingRectFor (const QRectF &sourceRect) const |
Returns the effective bounding rectangle for this effect, given the provided rect in the device coordinates. More... | |
bool | isEnabled () const |
QGraphicsEffect (QObject *parent=0) | |
Constructs a new QGraphicsEffect instance having the specified parent. More... | |
QGraphicsEffectSource * | source () const |
Returns a pointer to the source, which provides extra context information that can be useful for the effect. More... | |
virtual | ~QGraphicsEffect () |
Removes the effect from the source, and destroys the graphics effect. More... | |
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 QObjectList & | children () 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< QByteArray > | dynamicPropertyNames () 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 > | |
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 QMetaObject * | metaObject () 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 |
QObject * | parent () 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... | |
QThread * | thread () const |
Returns the thread in which the object lives. More... | |
QObjectUserData * | userData (uint id) const |
virtual | ~QObject () |
Destroys the object, deleting all its child objects. More... | |
Protected Functions | |
void | draw (QPainter *painter) |
This pure virtual function draws the effect and is called whenever the source needs to be drawn. More... | |
virtual void | setUniforms (QGLShaderProgram *program) |
void | setUniformsDirty () |
Protected Functions inherited from QGraphicsEffect | |
void | drawSource (QPainter *painter) |
Draws the source directly using the given painter. More... | |
QGraphicsEffect (QGraphicsEffectPrivate &d, QObject *parent=0) | |
QRectF | sourceBoundingRect (Qt::CoordinateSystem system=Qt::LogicalCoordinates) const |
Returns the bounding rectangle of the source mapped to the given system. More... | |
virtual void | sourceChanged (ChangeFlags flags) |
This virtual function is called by QGraphicsEffect to notify the effect that the source has changed. More... | |
bool | sourceIsPixmap () const |
Returns true if the source effectively is a pixmap, e.g., a QGraphicsPixmapItem. More... | |
QPixmap | sourcePixmap (Qt::CoordinateSystem system=Qt::LogicalCoordinates, QPoint *offset=0, PixmapPadMode mode=PadToEffectiveBoundingRect) const |
Returns a pixmap with the source painted into it. More... | |
void | updateBoundingRect () |
This function notifies the effect framework when the effect's bounding rectangle has changed. 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... | |
QObject * | sender () 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... | |
Friends | |
class | QGLCustomShaderEffectStage |
Additional Inherited Members | |
Public Types inherited from QGraphicsEffect | |
enum | ChangeFlag { SourceAttached = 0x1, SourceDetached = 0x2, SourceBoundingRectChanged = 0x4, SourceInvalidated = 0x8 } |
This enum describes what has changed in QGraphicsEffectSource. More... | |
enum | PixmapPadMode { NoPad, PadToTransparentBorder, PadToEffectiveBoundingRect } |
This enum describes how the pixmap returned from sourcePixmap should be padded. More... | |
Public Slots inherited from QGraphicsEffect | |
void | setEnabled (bool enable) |
void | update () |
Schedules a redraw of the effect. More... | |
Public Slots inherited from QObject | |
void | deleteLater () |
Schedules this object for deletion. More... | |
Signals inherited from QGraphicsEffect | |
void | enabledChanged (bool enabled) |
This signal is emitted whenever the effect is enabled or disabled. 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 Variables inherited from QObject | |
QScopedPointer< QObjectData > | d_ptr |
Static Protected Variables inherited from QObject | |
static const QMetaObject | staticQtMetaObject |
Related Functions inherited from QObject | |
T | qFindChildqFindChildren (const QObject *obj, const QString &name)() |
QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QString &name)() |
QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QRegExp ®Exp)() |
T * | qobject_cast (QObject *object) |
QObjectList | |
void * | qt_find_obj_child (QObject *parent, const char *type, const QString &name) |
Returns a pointer to the object named name that inherits type and with a given parent. More... | |
Definition at line 68 of file qgraphicsshadereffect_p.h.
QGraphicsShaderEffect::QGraphicsShaderEffect | ( | QObject * | parent = 0 | ) |
Definition at line 181 of file qgraphicsshadereffect.cpp.
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virtual |
Definition at line 189 of file qgraphicsshadereffect.cpp.
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protectedvirtual |
This pure virtual function draws the effect and is called whenever the source needs to be drawn.
Reimplement this function in a QGraphicsEffect subclass to provide the effect's drawing implementation, using painter.
For example:
This function should not be called explicitly by the user, since it is meant for reimplementation purposes only.
Implements QGraphicsEffect.
Definition at line 244 of file qgraphicsshadereffect.cpp.
QByteArray QGraphicsShaderEffect::pixelShaderFragment | ( | ) | const |
Definition at line 205 of file qgraphicsshadereffect.cpp.
void QGraphicsShaderEffect::setPixelShaderFragment | ( | const QByteArray & | code | ) |
Definition at line 229 of file qgraphicsshadereffect.cpp.
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protectedvirtual |
Definition at line 309 of file qgraphicsshadereffect.cpp.
Referenced by QGLCustomShaderEffectStage::setUniforms().
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protected |
Definition at line 290 of file qgraphicsshadereffect.cpp.
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friend |
Definition at line 87 of file qgraphicsshadereffect_p.h.
Referenced by draw().