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QwtMagnifier
Langue: en
Version: 160790 (fedora - 05/07/09)
Section: 3 (Bibliothèques de fonctions)
Sommaire
- NAME
- SYNOPSIS
- Detailed Description
- Constructor & Destructor Documentation
- Member Function Documentation
- void QwtMagnifier::setEnabled (bool on)
- bool QwtMagnifier::isEnabled () const
- void QwtMagnifier::setMouseFactor (double factor)
- double QwtMagnifier::mouseFactor () const
- void QwtMagnifier::setMouseButton (int button, int buttonState = Qt::NoButton)
- void QwtMagnifier::getMouseButton (int & button, int & buttonState) const
- void QwtMagnifier::setWheelFactor (double factor)
- double QwtMagnifier::wheelFactor () const
- void QwtMagnifier::setWheelButtonState (int buttonState)
- int QwtMagnifier::wheelButtonState () const
- void QwtMagnifier::setKeyFactor (double factor)
- double QwtMagnifier::keyFactor () const
- void QwtMagnifier::setZoomInKey (int key, int modifiers)
- void QwtMagnifier::getZoomInKey (int & key, int & modifiers) const
- void QwtMagnifier::setZoomOutKey (int key, int modifiers)
- void QwtMagnifier::getZoomOutKey (int & key, int & modifiers) const
- bool QwtMagnifier::eventFilter (QObject * o, QEvent * e) [virtual]
- void QwtMagnifier::widgetMousePressEvent (QMouseEvent * me) [protected, virtual]
- void QwtMagnifier::widgetMouseReleaseEvent (QMouseEvent *) [protected, virtual]
- void QwtMagnifier::widgetMouseMoveEvent (QMouseEvent * me) [protected, virtual]
- void QwtMagnifier::widgetWheelEvent (QWheelEvent * we) [protected, virtual]
- void QwtMagnifier::widgetKeyPressEvent (QKeyEvent * ke) [protected, virtual]
- void QwtMagnifier::widgetKeyReleaseEvent (QKeyEvent *) [protected, virtual]
- Author
NAME
QwtMagnifier -SYNOPSIS
Inherited by QwtPlotMagnifier.
Detailed Description
QwtMagnifier provides zooming, by magnifying in steps.
Using QwtMagnifier a plot can be zoomed in/out in steps using keys, the mouse wheel or moving a mouse button in vertical direction.
Definition at line 27 of file qwt_magnifier.h.
Public Member Functions
QwtMagnifier (QWidget *)
virtual ~QwtMagnifier ()
QWidget * parentWidget ()
const QWidget * parentWidget () const
void setEnabled (bool)
bool isEnabled () const
void setMouseFactor (double)
double mouseFactor () const
void setMouseButton (int button, int buttonState=Qt::NoButton)
void getMouseButton (int &button, int &buttonState) const
void setWheelFactor (double)
double wheelFactor () const
void setWheelButtonState (int buttonState)
int wheelButtonState () const
void setKeyFactor (double)
double keyFactor () const
void setZoomInKey (int key, int modifiers)
void getZoomInKey (int &key, int &modifiers) const
void setZoomOutKey (int key, int modifiers)
void getZoomOutKey (int &key, int &modifiers) const
virtual bool eventFilter (QObject *, QEvent *)
Protected Member Functions
virtual void rescale (double factor)=0
virtual void widgetMousePressEvent (QMouseEvent *)
virtual void widgetMouseReleaseEvent (QMouseEvent *)
virtual void widgetMouseMoveEvent (QMouseEvent *)
virtual void widgetWheelEvent (QWheelEvent *)
virtual void widgetKeyPressEvent (QKeyEvent *)
virtual void widgetKeyReleaseEvent (QKeyEvent *)
Constructor & Destructor Documentation
QwtMagnifier::QwtMagnifier (QWidget * parent) [explicit]
Constructor
Parameters:
- parent Widget to be magnified
Definition at line 66 of file qwt_magnifier.cpp.
References setEnabled().
QwtMagnifier::~QwtMagnifier () [virtual]
Destructor.
Definition at line 74 of file qwt_magnifier.cpp.
Member Function Documentation
void QwtMagnifier::setEnabled (bool on)
En/disable the magnifier.
When enabled is true an event filter is installed for the observed widget, otherwise the event filter is removed.
Parameters:
- on true or false
See also:
- isEnabled(), eventFilter()
Definition at line 88 of file qwt_magnifier.cpp.
Referenced by QwtMagnifier().
bool QwtMagnifier::isEnabled () const
Returns:
- true when enabled, false otherwise
See also:
- setEnabled, eventFilter()
Definition at line 109 of file qwt_magnifier.cpp.
void QwtMagnifier::setMouseFactor (double factor)
Change the mouse factor.
The mouse factor defines the ratio between the current range on the parent widget and the zoomed range for each vertical mouse movement. The default value is 0.95.
Parameters:
- factor Wheel factor
See also:
- mouseFactor(), setMouseButton(), setWheelFactor(), setKeyFactor()
Definition at line 170 of file qwt_magnifier.cpp.
double QwtMagnifier::mouseFactor () const
Returns:
- Mouse factor
See also:
- setMouseFactor()
Definition at line 179 of file qwt_magnifier.cpp.
void QwtMagnifier::setMouseButton (int button, int buttonState = Qt::NoButton)
Assign the mouse button, that is used for zooming in/out. The default value is Qt::RightButton.
Parameters:
- button Button
buttonState Button state
See also:
- getMouseButton
Definition at line 192 of file qwt_magnifier.cpp.
void QwtMagnifier::getMouseButton (int & button, int & buttonState) const
See also:
- setMouseButton
Definition at line 199 of file qwt_magnifier.cpp.
void QwtMagnifier::setWheelFactor (double factor)
Change the wheel factor.
The wheel factor defines the ratio between the current range on the parent widget and the zoomed range for each step of the wheel. The default value is 0.9.
Parameters:
- factor Wheel factor
See also:
- wheelFactor(), setWheelButtonState(), setMouseFactor(), setKeyFactor()
Definition at line 125 of file qwt_magnifier.cpp.
double QwtMagnifier::wheelFactor () const
Returns:
- Wheel factor
See also:
- setWheelFactor()
Definition at line 134 of file qwt_magnifier.cpp.
void QwtMagnifier::setWheelButtonState (int buttonState)
Assign a mandatory button state for zooming in/out using the wheel. The default button state is Qt::NoButton.
Parameters:
- buttonState Button state
See also:
- wheelButtonState
Definition at line 146 of file qwt_magnifier.cpp.
int QwtMagnifier::wheelButtonState () const
Returns:
- Wheel button state
See also:
- setWheelButtonState
Definition at line 155 of file qwt_magnifier.cpp.
void QwtMagnifier::setKeyFactor (double factor)
Change the key factor.
The key factor defines the ratio between the current range on the parent widget and the zoomed range for each key press of the zoom in/out keys. The default value is 0.9.
Parameters:
- factor Key factor
See also:
- keyFactor(), setZoomInKey(), setZoomOutKey(), setWheelFactor, setMouseFactor()
Definition at line 217 of file qwt_magnifier.cpp.
double QwtMagnifier::keyFactor () const
Returns:
- Key factor
See also:
- setKeyFactor()
Definition at line 226 of file qwt_magnifier.cpp.
void QwtMagnifier::setZoomInKey (int key, int modifiers)
Assign the key, that is used for zooming in. The default combination is Qt::Key_Plus + Qt::NoModifier.
Parameters:
- key
modifiers
See also:
- getZoomInKey(), setZoomOutKey()
Definition at line 239 of file qwt_magnifier.cpp.
void QwtMagnifier::getZoomInKey (int & key, int & modifiers) const
See also:
- setZoomInKey
Definition at line 246 of file qwt_magnifier.cpp.
void QwtMagnifier::setZoomOutKey (int key, int modifiers)
Assign the key, that is used for zooming out. The default combination is Qt::Key_Minus + Qt::NoModifier.
Parameters:
- key
modifiers
See also:
- getZoomOutKey(), setZoomOutKey()
Definition at line 260 of file qwt_magnifier.cpp.
void QwtMagnifier::getZoomOutKey (int & key, int & modifiers) const
See also:
- setZoomOutKey
Definition at line 267 of file qwt_magnifier.cpp.
bool QwtMagnifier::eventFilter (QObject * o, QEvent * e) [virtual]
Event filter.
When isEnabled() the mouse events of the observed widget are filtered.
See also:
- widgetMousePressEvent(), widgetMouseReleaseEvent(), widgetMouseMoveEvent(), widgetWheelEvent(), widgetKeyPressEvent() widgetKeyReleaseEvent()
Definition at line 282 of file qwt_magnifier.cpp.
References widgetKeyPressEvent(), widgetKeyReleaseEvent(), widgetMouseMoveEvent(), widgetMousePressEvent(), widgetMouseReleaseEvent(), and widgetWheelEvent().
void QwtMagnifier::widgetMousePressEvent (QMouseEvent * me) [protected, virtual]
Handle a mouse press event for the observed widget.
Parameters:
- me Mouse event
See also:
- eventFilter(), widgetMouseReleaseEvent(), widgetMouseMoveEvent()
Definition at line 330 of file qwt_magnifier.cpp.
References parentWidget().
Referenced by eventFilter().
void QwtMagnifier::widgetMouseReleaseEvent (QMouseEvent *) [protected, virtual]
Handle a mouse release event for the observed widget.
See also:
- eventFilter(), widgetMousePressEvent(), widgetMouseMoveEvent(),
Definition at line 356 of file qwt_magnifier.cpp.
References parentWidget().
Referenced by eventFilter().
void QwtMagnifier::widgetMouseMoveEvent (QMouseEvent * me) [protected, virtual]
Handle a mouse move event for the observed widget.
Parameters:
- me Mouse event
See also:
- eventFilter(), widgetMousePressEvent(), widgetMouseReleaseEvent(),
Definition at line 371 of file qwt_magnifier.cpp.
Referenced by eventFilter().
void QwtMagnifier::widgetWheelEvent (QWheelEvent * we) [protected, virtual]
Handle a wheel event for the observed widget.
Parameters:
- we Wheel event
See also:
- eventFilter()
Definition at line 395 of file qwt_magnifier.cpp.
Referenced by eventFilter().
void QwtMagnifier::widgetKeyPressEvent (QKeyEvent * ke) [protected, virtual]
Handle a key press event for the observed widget.
Parameters:
- ke Key event
See also:
- eventFilter(), widgetKeyReleaseEvent()
Definition at line 434 of file qwt_magnifier.cpp.
Referenced by eventFilter().
void QwtMagnifier::widgetKeyReleaseEvent (QKeyEvent *) [protected, virtual]
Handle a key release event for the observed widget.
Parameters:
- ke Key event
See also:
- eventFilter(), widgetKeyReleaseEvent()
Definition at line 461 of file qwt_magnifier.cpp.
Referenced by eventFilter().
Author
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