/**
* Sets the model's {@code valueIsAdjusting} property. Slider look and feel implementations should
* set this property to {@code true} when a knob drag begins, and to {@code false} when the drag
* ends.
*
* @param b the new value for the {@code valueIsAdjusting} property
* @see #getValueIsAdjusting
* @see BoundedRangeModel#setValueIsAdjusting
* @beaninfo expert: true description: True if the slider knob is being dragged.
*/
public void setValueIsAdjusting(boolean b) {
BoundedRangeModel m = getModel();
boolean oldValue = m.getValueIsAdjusting();
m.setValueIsAdjusting(b);
if ((oldValue != b) && (accessibleContext != null)) {
accessibleContext.firePropertyChange(
AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
((oldValue) ? AccessibleState.BUSY : null),
((b) ? AccessibleState.BUSY : null));
}
}
/**
* Sets the slider's current value to {@code n}. This method forwards the new value to the model.
*
* <p>The data model (an instance of {@code BoundedRangeModel}) handles any mathematical issues
* arising from assigning faulty values. See the {@code BoundedRangeModel} documentation for
* details.
*
* <p>If the new value is different from the previous value, all change listeners are notified.
*
* @param n the new value
* @see #getValue
* @see #addChangeListener
* @see BoundedRangeModel#setValue
* @beaninfo preferred: true description: The sliders current value.
*/
public void setValue(int n) {
BoundedRangeModel m = getModel();
int oldValue = m.getValue();
if (oldValue == n) {
return;
}
m.setValue(n);
if (accessibleContext != null) {
accessibleContext.firePropertyChange(
AccessibleContext.ACCESSIBLE_VALUE_PROPERTY,
Integer.valueOf(oldValue),
Integer.valueOf(m.getValue()));
}
}
/**
* Sets the {@code BoundedRangeModel} that handles the slider's three fundamental properties:
* minimum, maximum, value.
*
* <p>Attempts to pass a {@code null} model to this method result in undefined behavior, and, most
* likely, exceptions.
*
* @param newModel the new, {@code non-null} <code>BoundedRangeModel</code> to use
* @see #getModel
* @see BoundedRangeModel
* @beaninfo bound: true description: The sliders BoundedRangeModel.
*/
public void setModel(BoundedRangeModel newModel) {
BoundedRangeModel oldModel = getModel();
if (oldModel != null) {
oldModel.removeChangeListener(changeListener);
}
sliderModel = newModel;
if (newModel != null) {
newModel.addChangeListener(changeListener);
}
if (accessibleContext != null) {
accessibleContext.firePropertyChange(
AccessibleContext.ACCESSIBLE_VALUE_PROPERTY,
(oldModel == null ? null : Integer.valueOf(oldModel.getValue())),
(newModel == null ? null : Integer.valueOf(newModel.getValue())));
}
firePropertyChange("model", oldModel, sliderModel);
}
/**
* Get the maximum accessible value of this object.
*
* @return The maximum value of this object.
*/
public Number getMaximumAccessibleValue() {
// TIGER - 4422362
BoundedRangeModel model = JSlider.this.getModel();
return Integer.valueOf(model.getMaximum() - model.getExtent());
}
