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Qt 6.x
The Qt SDK
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Qt 6.x
The Qt SDK
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The QGraphicsColorizeEffect class provides a colorize effect. More...
#include <qgraphicseffect.h>
Inheritance diagram for QGraphicsColorizeEffect: Collaboration diagram for QGraphicsColorizeEffect:Public Slots | |
| void | setColor (const QColor &c) |
| void | setStrength (qreal strength) |
| Public Slots inherited from QGraphicsEffect | |
| void | setEnabled (bool enable) |
| void | update () |
| Schedules a redraw of the effect. | |
| Public Slots inherited from QObject | |
| void | deleteLater () |
| \threadsafe | |
Signals | |
| void | colorChanged (const QColor &color) |
| This signal is emitted whenever the effect's color changes. | |
| void | strengthChanged (qreal strength) |
| This signal is emitted whenever setStrength() changes the colorize strength property. | |
| Signals inherited from QGraphicsEffect | |
| void | enabledChanged (bool enabled) |
| This signal is emitted whenever the effect is enabled or disabled. | |
| Signals inherited from QObject | |
| void | destroyed (QObject *=nullptr) |
| This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked. | |
| void | objectNameChanged (const QString &objectName, QPrivateSignal) |
| This signal is emitted after the object's name has been changed. | |
Public Member Functions | |
| QGraphicsColorizeEffect (QObject *parent=nullptr) | |
| Constructs a new QGraphicsColorizeEffect instance. | |
| ~QGraphicsColorizeEffect () | |
| Destroys the effect. | |
| QColor | color () const |
| qreal | strength () const |
| Public Member Functions inherited from QGraphicsEffect | |
| QGraphicsEffect (QObject *parent=nullptr) | |
| Constructs a new QGraphicsEffect instance having the specified parent. | |
| virtual | ~QGraphicsEffect () |
| Removes the effect from the source, and destroys the graphics effect. | |
| virtual QRectF | boundingRectFor (const QRectF &sourceRect) const |
| Returns the effective bounding rectangle for this effect, given the provided rect in the device coordinates. | |
| 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. | |
| bool | isEnabled () const |
| QGraphicsEffectSource * | source () const |
| Public Member Functions inherited from QObject | |
| Q_INVOKABLE | QObject (QObject *parent=nullptr) |
| Constructs an object with parent object parent. | |
| virtual | ~QObject () |
| Destroys the object, deleting all its child objects. | |
| virtual bool | event (QEvent *event) |
| This virtual function receives events to an object and should return true if the event e was recognized and processed. | |
| virtual bool | eventFilter (QObject *watched, QEvent *event) |
| Filters events if this object has been installed as an event filter for the watched object. | |
| QString | objectName () const |
| Q_WEAK_OVERLOAD void | setObjectName (const QString &name) |
| Sets the object's name to name. | |
| void | setObjectName (QAnyStringView name) |
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. | |
| QBindable< QString > | bindableObjectName () |
| bool | isWidgetType () const |
Returns true if the object is a widget; otherwise returns false. | |
| bool | isWindowType () const |
Returns true if the object is a window; otherwise returns false. | |
| bool | isQuickItemType () const |
Returns true if the object is a QQuickItem; otherwise returns false. | |
| bool | signalsBlocked () const noexcept |
Returns true if signals are blocked; otherwise returns false. | |
| bool | blockSignals (bool b) noexcept |
| If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). | |
| QThread * | thread () const |
| Returns the thread in which the object lives. | |
| void | moveToThread (QThread *thread) |
| Changes the thread affinity for this object and its children. | |
| int | startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer) |
| This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds. | |
| int | startTimer (std::chrono::milliseconds time, Qt::TimerType timerType=Qt::CoarseTimer) |
| void | killTimer (int id) |
| Kills the timer with timer identifier, id. | |
| template<typename T > | |
| T | findChild (const QString &aName=QString(), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
| Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object. | |
| template<typename T > | |
| QList< T > | findChildren (const QString &aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) 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. | |
| template<typename T > | |
| QList< T > | findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. | |
| const QObjectList & | children () const |
| Returns a list of child objects. | |
| void | setParent (QObject *parent) |
| Makes the object a child of parent. | |
| void | installEventFilter (QObject *filterObj) |
| Installs an event filter filterObj on this object. | |
| void | removeEventFilter (QObject *obj) |
| Removes an event filter object obj from this object. | |
| QMetaObject::Connection | connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const |
| bool | disconnect (const char *signal=nullptr, const QObject *receiver=nullptr, const char *member=nullptr) const |
| bool | disconnect (const QObject *receiver, const char *member=nullptr) const |
| void | dumpObjectTree () const |
| Dumps a tree of children to the debug output. | |
| void | dumpObjectInfo () const |
| Dumps information about signal connections, etc. | |
| bool | setProperty (const char *name, const QVariant &value) |
| Sets the value of the object's name property to value. | |
| bool | setProperty (const char *name, QVariant &&value) |
| QVariant | property (const char *name) const |
| Returns the value of the object's name property. | |
| QList< QByteArray > | dynamicPropertyNames () const |
| QBindingStorage * | bindingStorage () |
| const QBindingStorage * | bindingStorage () const |
| QObject * | parent () const |
| Returns a pointer to the parent object. | |
| 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. | |
Protected Member Functions | |
| void | draw (QPainter *painter) override |
| \reimp | |
| Protected Member Functions inherited from QGraphicsEffect | |
| QGraphicsEffect (QGraphicsEffectPrivate &d, QObject *parent=nullptr) | |
| virtual void | draw (QPainter *painter)=0 |
| This pure virtual function draws the effect and is called whenever the source needs to be drawn. | |
| virtual void | sourceChanged (ChangeFlags flags) |
| This virtual function is called by QGraphicsEffect to notify the effect that the source has changed. | |
| void | updateBoundingRect () |
| This function notifies the effect framework when the effect's bounding rectangle has changed. | |
| bool | sourceIsPixmap () const |
Returns true if the source effectively is a pixmap, e.g., a QGraphicsPixmapItem. | |
| QRectF | sourceBoundingRect (Qt::CoordinateSystem system=Qt::LogicalCoordinates) const |
| Returns the bounding rectangle of the source mapped to the given system. | |
| void | drawSource (QPainter *painter) |
| Draws the source directly using the given painter. | |
| QPixmap | sourcePixmap (Qt::CoordinateSystem system=Qt::LogicalCoordinates, QPoint *offset=nullptr, PixmapPadMode mode=PadToEffectiveBoundingRect) const |
| Returns a pixmap with the source painted into it. | |
| Protected Member Functions inherited from QObject | |
| 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 \nullptr. | |
| int | senderSignalIndex () const |
| int | receivers (const char *signal) const |
| Returns the number of receivers connected to the signal. | |
| bool | isSignalConnected (const QMetaMethod &signal) const |
| virtual void | timerEvent (QTimerEvent *event) |
| This event handler can be reimplemented in a subclass to receive timer events for the object. | |
| virtual void | childEvent (QChildEvent *event) |
| This event handler can be reimplemented in a subclass to receive child events. | |
| virtual void | customEvent (QEvent *event) |
| This event handler can be reimplemented in a subclass to receive custom events. | |
| virtual void | connectNotify (const QMetaMethod &signal) |
| virtual void | disconnectNotify (const QMetaMethod &signal) |
| QObject (QObjectPrivate &dd, QObject *parent=nullptr) | |
Properties | |
| QColor | color |
| the color of the effect. | |
| qreal | strength |
| the strength of the effect. | |
| Properties inherited from QGraphicsEffect | |
| bool | enabled |
| whether the effect is enabled or not. | |
| Properties inherited from QObject | |
| QString | objectName |
| the name of this object | |
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... | |
| Static Public Member Functions inherited from QObject | |
| static QMetaObject::Connection | connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection) |
| \threadsafe | |
| static QMetaObject::Connection | connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection) |
| template<typename Func1 , typename Func2 > | |
| static QMetaObject::Connection | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType *context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection) |
| template<typename Func1 , typename Func2 > | |
| static QMetaObject::Connection | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot) |
| static bool | disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member) |
| \threadsafe | |
| static bool | disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member) |
| static bool | disconnect (const QMetaObject::Connection &) |
| Disconnect a connection. | |
| template<typename Func1 , typename Func2 > | |
| static bool | disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiver, Func2 slot) |
| template<typename Func1 > | |
| static bool | disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *receiver, void **zero) |
| Protected Attributes inherited from QObject | |
| QScopedPointer< QObjectData > | d_ptr |
| Related Symbols inherited from QObject | |
| template< class T > T | qobject_cast (const QObject *object) |
| Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr. | |
| template< typename T > T | qFindChildqFindChildren (const QObject *obj, const QString &name)() |
| template< typename T > QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QString &name)() |
| QObjectList | |
| \macro Q_CLASSINFO(Name, Value) | |
The QGraphicsColorizeEffect class provides a colorize effect.
A colorize effect renders the source with a tint of its color(). The color can be modified using the setColor() function.
By default, the color is light blue (QColor(0, 0, 192)).
Definition at line 90 of file qgraphicseffect.h.
Constructs a new QGraphicsColorizeEffect instance.
The parent parameter is passed to QGraphicsEffect's constructor.
Definition at line 577 of file qgraphicseffect.cpp.
| QGraphicsColorizeEffect::~QGraphicsColorizeEffect | ( | ) |
Destroys the effect.
Definition at line 585 of file qgraphicseffect.cpp.
| QColor QGraphicsColorizeEffect::color | ( | ) | const |
Definition at line 595 of file qgraphicseffect.cpp.
References d.
This signal is emitted whenever the effect's color changes.
The color parameter holds the effect's new color.
Referenced by setColor().
Here is the caller graph for this function:\reimp
Implements QGraphicsEffect.
Definition at line 653 of file qgraphicseffect.cpp.
References d, Qt::DeviceCoordinates, QGraphicsEffect::drawSource(), Qt::LogicalCoordinates, QGraphicsEffect::NoPad, painter, pixmap, QPainter::setWorldTransform(), QGraphicsEffect::sourceIsPixmap(), QGraphicsEffect::sourcePixmap(), and QPainter::worldTransform().
Here is the call graph for this function:Definition at line 601 of file qgraphicseffect.cpp.
References colorChanged(), d, emit, and QGraphicsEffect::update().
Here is the call graph for this function:Definition at line 625 of file qgraphicseffect.cpp.
References d, emit, qFuzzyCompare(), qFuzzyIsNull(), strength, strengthChanged(), and QGraphicsEffect::update().
Here is the call graph for this function:| qreal QGraphicsColorizeEffect::strength | ( | ) | const |
Definition at line 619 of file qgraphicseffect.cpp.
References d.
This signal is emitted whenever setStrength() changes the colorize strength property.
strength contains the new strength value of the colorize effect.
Referenced by setStrength().
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readwrite |
the color of the effect.
By default, the color is light blue (QColor(0, 0, 192)).
Definition at line 84 of file qgraphicseffect.h.
|
readwrite |
the strength of the effect.
By default, the strength is 1.0. A strength 0.0 equals to no effect, while 1.0 means full colorization.
Definition at line 84 of file qgraphicseffect.h.
Referenced by setStrength().
1.9.7