GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages
QwtMagnifier(3) Qwt User's Guide QwtMagnifier(3)

QwtMagnifier -

#include <qwt_magnifier.h>
Inherited by QwtPlotMagnifier.


QwtMagnifier (QWidget *)
 
virtual ~QwtMagnifier ()
 
virtual bool eventFilter (QObject *, QEvent *)
 
void getMouseButton (int &button, int &buttonState) const
 
void getZoomInKey (int &key, int &modifiers) const
 
void getZoomOutKey (int &key, int &modifiers) const
 
bool isEnabled () const
 
double keyFactor () const
 
double mouseFactor () const
 
QWidget * parentWidget ()
 
const QWidget * parentWidget () const
 
void setEnabled (bool)
 
void setKeyFactor (double)
 
void setMouseButton (int button, int buttonState=Qt::NoButton)
 
void setMouseFactor (double)
 
void setWheelButtonState (int buttonState)
 
void setWheelFactor (double)
 
void setZoomInKey (int key, int modifiers)
 
void setZoomOutKey (int key, int modifiers)
 
int wheelButtonState () const
 
double wheelFactor () const
 


virtual void rescale (double factor)=0
 
virtual void widgetKeyPressEvent (QKeyEvent *)
 
virtual void widgetKeyReleaseEvent (QKeyEvent *)
 
virtual void widgetMouseMoveEvent (QMouseEvent *)
 
virtual void widgetMousePressEvent (QMouseEvent *)
 
virtual void widgetMouseReleaseEvent (QMouseEvent *)
 
virtual void widgetWheelEvent (QWheelEvent *)
 

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.

Constructor
Parameters:
parent Widget to be magnified

Event filter. When isEnabled() the mouse events of the observed widget are filtered.
See also:
widgetMousePressEvent(), widgetMouseReleaseEvent(), widgetMouseMoveEvent(), widgetWheelEvent(), widgetKeyPressEvent() widgetKeyReleaseEvent()

See also:
setMouseButton()

See also:
setZoomInKey()

See also:
setZoomOutKey()

Returns:
true when enabled, false otherwise
See also:
setEnabled(), eventFilter()

Returns:
Key factor
See also:
setKeyFactor()

Returns:
Mouse factor
See also:
setMouseFactor()

Returns:
Parent widget, where the rescaling happens

Returns:
Parent widget, where the rescaling happens

Rescale the parent widget
Parameters:
factor Scale factor
Implemented in QwtPlotMagnifier.

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()

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()

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()

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()

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()

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()

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()

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()

Returns:
Wheel button state
See also:
setWheelButtonState()

Returns:
Wheel factor
See also:
setWheelFactor()

Handle a key press event for the observed widget.
Parameters:
ke Key event
See also:
eventFilter(), widgetKeyReleaseEvent()

Handle a key release event for the observed widget.
Parameters:
ke Key event
See also:
eventFilter(), widgetKeyReleaseEvent()

Handle a mouse move event for the observed widget.
Parameters:
me Mouse event
See also:
eventFilter(), widgetMousePressEvent(), widgetMouseReleaseEvent(),

Handle a mouse press event for the observed widget.
Parameters:
me Mouse event
See also:
eventFilter(), widgetMouseReleaseEvent(), widgetMouseMoveEvent()

Handle a mouse release event for the observed widget.
See also:
eventFilter(), widgetMousePressEvent(), widgetMouseMoveEvent(),

Handle a wheel event for the observed widget.
Parameters:
we Wheel event
See also:
eventFilter()

Generated automatically by Doxygen for Qwt User's Guide from the source code.
Tue Nov 20 2012 Version 5.2.3

Search for    or go to Top of page |  Section 3 |  Main Index

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.