public void stateChanged(ChangeEvent e) {
Object obj = e.getSource();
if (obj instanceof BoundedRangeModel) {
int id = AdjustmentEvent.ADJUSTMENT_VALUE_CHANGED;
int type = AdjustmentEvent.TRACK;
BoundedRangeModel model = (BoundedRangeModel) obj;
int value = model.getValue();
boolean isAdjusting = model.getValueIsAdjusting();
fireAdjustmentValueChanged(id, type, value, isAdjusting);
}
}
/**
* Sets the four BoundedRangeModel properties after forcing the arguments to obey the usual
* constraints:
*
* <pre>
* minimum <= value <= value+extent <= maximum
* </pre>
*
* <p>
*
* @see BoundedRangeModel#setRangeProperties
* @see #setValue
* @see #setVisibleAmount
* @see #setMinimum
* @see #setMaximum
*/
public void setValues(int newValue, int newExtent, int newMin, int newMax) {
BoundedRangeModel m = getModel();
int oldValue = m.getValue();
m.setRangeProperties(newValue, newExtent, newMin, newMax, m.getValueIsAdjusting());
if (accessibleContext != null) {
accessibleContext.firePropertyChange(
AccessibleContext.ACCESSIBLE_VALUE_PROPERTY,
Integer.valueOf(oldValue),
Integer.valueOf(m.getValue()));
}
}
/**
* Sets the scrollbar's value. This method just forwards the value to the model.
*
* @see #getValue
* @see BoundedRangeModel#setValue
* @beaninfo preferred: true description: The scrollbar's current value.
*/
public void setValue(int value) {
BoundedRangeModel m = getModel();
int oldValue = m.getValue();
m.setValue(value);
if (accessibleContext != null) {
accessibleContext.firePropertyChange(
AccessibleContext.ACCESSIBLE_VALUE_PROPERTY,
Integer.valueOf(oldValue),
Integer.valueOf(m.getValue()));
}
}
/**
* Sets the model's valueIsAdjusting property. Scrollbar look and feel implementations should set
* this property to true when a knob drag begins, and to false when the drag ends. The scrollbar
* model will not generate ChangeEvents while valueIsAdjusting is true.
*
* @see #getValueIsAdjusting
* @see BoundedRangeModel#setValueIsAdjusting
* @beaninfo expert: true description: True if the scrollbar thumb 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));
}
}
/**
* This determines the amount of the progress bar that should be filled based on the percent done
* gathered from the model. This is a common operation so it was abstracted out. It assumes that
* your progress bar is linear. That is, if you are making a circular progress indicator, you will
* want to override this method.
*/
protected int getAmountFull(Insets b, int width, int height) {
int amountFull = 0;
BoundedRangeModel model = progressBar.getModel();
if ((model.getMaximum() - model.getMinimum()) != 0) {
if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
amountFull = (int) Math.round(width * progressBar.getPercentComplete());
} else {
amountFull = (int) Math.round(height * progressBar.getPercentComplete());
}
}
return amountFull;
}
// ChangeListener
public void stateChanged(ChangeEvent e) {
BoundedRangeModel model = progressBar.getModel();
int newRange = model.getMaximum() - model.getMinimum();
int newPercent;
int oldPercent = getCachedPercent();
if (newRange > 0) {
newPercent = (int) ((100 * (long) model.getValue()) / newRange);
} else {
newPercent = 0;
}
if (newPercent != oldPercent) {
setCachedPercent(newPercent);
progressBar.repaint();
}
}
/**
* Sets the model that handles the scrollbar's four fundamental properties: minimum, maximum,
* value, extent.
*
* @see #getModel
* @beaninfo bound: true expert: true description: The scrollbar's BoundedRangeModel.
*/
public void setModel(BoundedRangeModel newModel) {
Integer oldValue = null;
BoundedRangeModel oldModel = model;
if (model != null) {
model.removeChangeListener(fwdAdjustmentEvents);
oldValue = Integer.valueOf(model.getValue());
}
model = newModel;
if (model != null) {
model.addChangeListener(fwdAdjustmentEvents);
}
firePropertyChange("model", oldModel, model);
if (accessibleContext != null) {
accessibleContext.firePropertyChange(
AccessibleContext.ACCESSIBLE_VALUE_PROPERTY, oldValue, new Integer(model.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());
}