uchicago.src.reflector
Class RangePropertyDescriptor

java.lang.Object
  uchicago.src.reflector.PropertyDescriptor
      uchicago.src.reflector.RangePropertyDescriptor

public class RangePropertyDescriptor
extends PropertyDescriptor

A property descriptor for limiting an integer value to a specified range. A RangePropertyDescriptor is a descriptor for a parameter / property whose value can be expressed as falling within a range of integer values. It is useful when you want to restrict user input to some value within a range of integers. The range is represented in the gui by a slider with minimum and maximum values and a text box into which you can type some specific value. If the value you enter is greater than the maximum allowable value or less than the minimum value the actual value will be set to the maximum or minimum respectively. Similarly, if you enter a non-numerical value into the text box the value will default to the most recent valid value. Selecting an integer from within the range either via the slider or the text box calls the appropriate set method in your model.

This class's widget is a RangeWidget.

Version:

$Revision: 1.4 $ $Date: 2004/11/03 19:51:05 $

Field Summary

Fields inherited from class uchicago.src.reflector.PropertyDescriptor

widget

Constructor Summary

RangePropertyDescriptor(java.lang.String name, int min, int max, int tickSpacing)
Constructs this RangePropertyDescriptor for the named property with the specified range and tick spacing.

Method Summary

Methods inherited from class uchicago.src.reflector.PropertyDescriptor

getName, getWidget

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RangePropertyDescriptor

public RangePropertyDescriptor(java.lang.String name,
                               int min,
                               int max,
                               int tickSpacing)

Constructs this RangePropertyDescriptor for the named property with the specified range and tick spacing. The tick spacing parameter determines the display of intermediate values in the slider. For example, a range of 10 - 100 and a tick spacing of 10 will display ticks on the slider for 20, 30, 40 and so on up to 90. Note that this only determines the display, any integer value between 10 - 100, in this case, can be selected.

Parameters:

name - the of the property

min - the minimum valueq

max - the maximum value

tickSpacing - an int value that determines how often the ticks are labeled in the slider