#include <qwt_wheel.h>
Inherits QwtSliderBase.
Inheritance diagram for QwtWheel
Public Types | |
enum | Orientation { Horizontal, Vertical } |
Public Methods | |
QwtWheel (QWidget *parent = 0, const char *name = 0) | |
~QwtWheel () | |
void | setTotalAngle (double angle) |
void | setTickCnt (int cnt) |
void | setOrientation (Orientation o) |
void | setViewAngle (double angle) |
void | setInternalBorder (int width) |
void | setMass (double val) |
The wheel widget can be used to change values over a very large range in very small steps. Using the setMass member, it can be configured as a flywheel.
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Constructor.
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Destructor.
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Set the internal border width of the wheel.
The internal border must not be smaller than 1 and is limited in dependence on the wheel's size. Values outside the allowed range will be clipped. The internal border defaults to 1.
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Set the mass of the wheel.
Assigning a mass turns the wheel into a flywheel.
Reimplemented from QwtSliderBase. |
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Set the wheel's orientation.
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Adjust the number of grooves in the wheel's surface.
The number of grooves is limited to 6 <= cnt <= 50. Values outside this range will be clipped. The default value is 10.
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Set the total angle which the wheel can be turned.
One full turn of the wheel corresponds to an angle of 360 degrees. A total angle of n*360 degrees means that the wheel has to be turned n times around its axis to get from the minimum value to the maximum value. The default setting of the total angle is 360 degrees.
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Specify the visible portion of the wheel.
You may use this function for fine-tuning the appearance of the wheel. The default value is 175 degrees. The value is limited from 10 to 175 degrees.
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