| Methods Summary |
|---|
| public void | addListSelectionListener(javax.swing.event.ListSelectionListener l)
listenerList.add(ListSelectionListener.class, l);
|
| public void | addSelectionInterval(int index0, int index1)
if (index0 == -1 || index1 == -1) {
return;
}
if (getSelectionMode() != MULTIPLE_INTERVAL_SELECTION) {
setSelectionInterval(index0, index1);
return;
}
updateLeadAnchorIndices(index0, index1);
int clearMin = MAX;
int clearMax = MIN;
int setMin = Math.min(index0, index1);
int setMax = Math.max(index0, index1);
changeSelection(clearMin, clearMax, setMin, setMax);
|
| private void | changeSelection(int clearMin, int clearMax, int setMin, int setMax, boolean clearFirst)
for(int i = Math.min(setMin, clearMin); i <= Math.max(setMax, clearMax); i++) {
boolean shouldClear = contains(clearMin, clearMax, i);
boolean shouldSet = contains(setMin, setMax, i);
if (shouldSet && shouldClear) {
if (clearFirst) {
shouldClear = false;
}
else {
shouldSet = false;
}
}
if (shouldSet) {
set(i);
}
if (shouldClear) {
clear(i);
}
}
fireValueChanged();
|
| private void | changeSelection(int clearMin, int clearMax, int setMin, int setMax)
changeSelection(clearMin, clearMax, setMin, setMax, true);
|
| private void | clear(int r)
if (!value.get(r)) {
return;
}
value.clear(r);
Option option = (Option)get(r);
option.setSelection(false);
markAsDirty(r);
// Update minimum and maximum indices
/*
If (r > minIndex) the minimum has not changed.
The case (r < minIndex) is not possible because r'th value was set.
We only need to check for the case when lowest entry has been cleared,
and in this case we need to search for the first value set above it.
*/
if (r == minIndex) {
for(minIndex = minIndex + 1; minIndex <= maxIndex; minIndex++) {
if (value.get(minIndex)) {
break;
}
}
}
/*
If (r < maxIndex) the maximum has not changed.
The case (r > maxIndex) is not possible because r'th value was set.
We only need to check for the case when highest entry has been cleared,
and in this case we need to search for the first value set below it.
*/
if (r == maxIndex) {
for(maxIndex = maxIndex - 1; minIndex <= maxIndex; maxIndex--) {
if (value.get(maxIndex)) {
break;
}
}
}
/* Performance note: This method is called from inside a loop in
changeSelection() but we will only iterate in the loops
above on the basis of one iteration per deselected cell - in total.
Ie. the next time this method is called the work of the previous
deselection will not be repeated.
We also don't need to worry about the case when the min and max
values are in their unassigned states. This cannot happen because
this method's initial check ensures that the selection was not empty
and therefore that the minIndex and maxIndex had 'real' values.
If we have cleared the whole selection, set the minIndex and maxIndex
to their cannonical values so that the next set command always works
just by using Math.min and Math.max.
*/
if (isSelectionEmpty()) {
minIndex = MAX;
maxIndex = MIN;
}
|
| public void | clearSelection()
removeSelectionInterval(minIndex, maxIndex);
|
| public java.lang.Object | clone()Returns a clone of the receiver with the same selection.
listenerLists are not duplicated.
OptionListModel clone = (OptionListModel)super.clone();
clone.value = (BitSet)value.clone();
clone.listenerList = new EventListenerList();
return clone;
|
| private boolean | contains(int a, int b, int i)
return (i >= a) && (i <= b);
|
| protected void | fireValueChanged(boolean isAdjusting)Notify listeners that we are beginning or ending a
series of value changes
fireValueChanged(getMinSelectionIndex(), getMaxSelectionIndex(), isAdjusting);
|
| protected void | fireValueChanged(int firstIndex, int lastIndex)Notify ListSelectionListeners that the value of the selection,
in the closed interval firstIndex,lastIndex, has changed.
fireValueChanged(firstIndex, lastIndex, getValueIsAdjusting());
|
| protected void | fireValueChanged(int firstIndex, int lastIndex, boolean isAdjusting)
Object[] listeners = listenerList.getListenerList();
ListSelectionEvent e = null;
for (int i = listeners.length - 2; i >= 0; i -= 2) {
if (listeners[i] == ListSelectionListener.class) {
if (e == null) {
e = new ListSelectionEvent(this, firstIndex, lastIndex, isAdjusting);
}
((ListSelectionListener)listeners[i+1]).valueChanged(e);
}
}
|
| private void | fireValueChanged()
if (lastChangedIndex == MIN) {
return;
}
/* Change the values before sending the event to the
* listeners in case the event causes a listener to make
* another change to the selection.
*/
int oldFirstChangedIndex = firstChangedIndex;
int oldLastChangedIndex = lastChangedIndex;
firstChangedIndex = MAX;
lastChangedIndex = MIN;
fireValueChanged(oldFirstChangedIndex, oldLastChangedIndex);
|
| public int | getAnchorSelectionIndex()
return anchorIndex;
|
| public java.util.BitSet | getInitialSelection()Fetches the BitSet that represents the initial
set of selected items in the list.
return initialValue;
|
| public int | getLeadSelectionIndex()
return leadIndex;
|
| public javax.swing.event.ListSelectionListener[] | getListSelectionListeners()Returns an array of all the ListSelectionListeners added
to this OptionListModel with addListSelectionListener().
return (ListSelectionListener[])listenerList.getListeners(
ListSelectionListener.class);
|
| public int | getMaxSelectionIndex() return maxIndex;
|
| public int | getMinSelectionIndex()
return isSelectionEmpty() ? -1 : minIndex;
|
| public int | getSelectionMode() return selectionMode;
|
| public boolean | getValueIsAdjusting() return isAdjusting;
|
| public void | insertIndexInterval(int index, int length, boolean before)Insert length indices beginning before/after index. If the value
at index is itself selected, set all of the newly inserted
items, otherwise leave them unselected. This method is typically
called to sync the selection model with a corresponding change
in the data model.
/* The first new index will appear at insMinIndex and the last
* one will appear at insMaxIndex
*/
int insMinIndex = (before) ? index : index + 1;
int insMaxIndex = (insMinIndex + length) - 1;
/* Right shift the entire bitset by length, beginning with
* index-1 if before is true, index+1 if it's false (i.e. with
* insMinIndex).
*/
for(int i = maxIndex; i >= insMinIndex; i--) {
setState(i + length, value.get(i));
}
/* Initialize the newly inserted indices.
*/
boolean setInsertedValues = value.get(index);
for(int i = insMinIndex; i <= insMaxIndex; i++) {
setState(i, setInsertedValues);
}
|
| public boolean | isLeadAnchorNotificationEnabled()Returns the value of the leadAnchorNotificationEnabled flag.
When leadAnchorNotificationEnabled is true the model
generates notification events with bounds that cover all the changes to
the selection plus the changes to the lead and anchor indices.
Setting the flag to false causes a norrowing of the event's bounds to
include only the elements that have been selected or deselected since
the last change. Either way, the model continues to maintain the lead
and anchor variables internally. The default is true.
return leadAnchorNotificationEnabled;
|
| public boolean | isSelectedIndex(int index)
return ((index < minIndex) || (index > maxIndex)) ? false : value.get(index);
|
| public boolean | isSelectionEmpty()
return (minIndex > maxIndex);
|
| private void | markAsDirty(int r)
firstChangedIndex = Math.min(firstChangedIndex, r);
lastChangedIndex = Math.max(lastChangedIndex, r);
|
| public void | removeIndexInterval(int index0, int index1)Remove the indices in the interval index0,index1 (inclusive) from
the selection model. This is typically called to sync the selection
model width a corresponding change in the data model. Note
that (as always) index0 can be greater than index1.
int rmMinIndex = Math.min(index0, index1);
int rmMaxIndex = Math.max(index0, index1);
int gapLength = (rmMaxIndex - rmMinIndex) + 1;
/* Shift the entire bitset to the left to close the index0, index1
* gap.
*/
for(int i = rmMinIndex; i <= maxIndex; i++) {
setState(i, value.get(i + gapLength));
}
|
| public void | removeListSelectionListener(javax.swing.event.ListSelectionListener l)
listenerList.remove(ListSelectionListener.class, l);
|
| public void | removeSelectionInterval(int index0, int index1)
if (index0 == -1 || index1 == -1) {
return;
}
updateLeadAnchorIndices(index0, index1);
int clearMin = Math.min(index0, index1);
int clearMax = Math.max(index0, index1);
int setMin = MAX;
int setMax = MIN;
changeSelection(clearMin, clearMax, setMin, setMax);
|
| private void | set(int r)
if (value.get(r)) {
return;
}
value.set(r);
Option option = (Option)get(r);
option.setSelection(true);
markAsDirty(r);
// Update minimum and maximum indices
minIndex = Math.min(minIndex, r);
maxIndex = Math.max(maxIndex, r);
|
| public void | setAnchorSelectionIndex(int anchorIndex)Set the anchor selection index, leaving all selection values unchanged.
this.anchorIndex = anchorIndex;
|
| public void | setInitialSelection(int i)This method is responsible for storing the state
of the initial selection. If the selectionMode
is the default, i.e allowing only for SINGLE_SELECTION,
then the very last OPTION that has the selected
attribute set wins.
if (initialValue.get(i)) {
return;
}
if (selectionMode == SINGLE_SELECTION) {
// reset to empty
initialValue.and(new BitSet());
}
initialValue.set(i);
|
| public void | setLeadAnchorNotificationEnabled(boolean flag)Sets the value of the leadAnchorNotificationEnabled flag.
leadAnchorNotificationEnabled = flag;
|
| public void | setLeadSelectionIndex(int leadIndex)Set the lead selection index, ensuring that values between the
anchor and the new lead are either all selected or all deselected.
If the value at the anchor index is selected, first clear all the
values in the range [anchor, oldLeadIndex], then select all the values
values in the range [anchor, newLeadIndex], where oldLeadIndex is the old
leadIndex and newLeadIndex is the new one.
If the value at the anchor index is not selected, do the same thing in reverse,
selecting values in the old range and deslecting values in the new one.
Generate a single event for this change and notify all listeners.
For the purposes of generating minimal bounds in this event, do the
operation in a single pass; that way the first and last index inside the
ListSelectionEvent that is broadcast will refer to cells that actually
changed value because of this method. If, instead, this operation were
done in two steps the effect on the selection state would be the same
but two events would be generated and the bounds around the changed values
would be wider, including cells that had been first cleared and only
to later be set.
This method can be used in the mouseDragged() method of a UI class
to extend a selection.
int anchorIndex = this.anchorIndex;
if (getSelectionMode() == SINGLE_SELECTION) {
anchorIndex = leadIndex;
}
int oldMin = Math.min(this.anchorIndex, this.leadIndex);;
int oldMax = Math.max(this.anchorIndex, this.leadIndex);;
int newMin = Math.min(anchorIndex, leadIndex);
int newMax = Math.max(anchorIndex, leadIndex);
if (value.get(this.anchorIndex)) {
changeSelection(oldMin, oldMax, newMin, newMax);
}
else {
changeSelection(newMin, newMax, oldMin, oldMax, false);
}
this.anchorIndex = anchorIndex;
this.leadIndex = leadIndex;
|
| public void | setSelectionInterval(int index0, int index1)
if (index0 == -1 || index1 == -1) {
return;
}
if (getSelectionMode() == SINGLE_SELECTION) {
index0 = index1;
}
updateLeadAnchorIndices(index0, index1);
int clearMin = minIndex;
int clearMax = maxIndex;
int setMin = Math.min(index0, index1);
int setMax = Math.max(index0, index1);
changeSelection(clearMin, clearMax, setMin, setMax);
|
| public void | setSelectionMode(int selectionMode)
switch (selectionMode) {
case SINGLE_SELECTION:
case SINGLE_INTERVAL_SELECTION:
case MULTIPLE_INTERVAL_SELECTION:
this.selectionMode = selectionMode;
break;
default:
throw new IllegalArgumentException("invalid selectionMode");
}
|
| private void | setState(int index, boolean state)
if (state) {
set(index);
}
else {
clear(index);
}
|
| public void | setValueIsAdjusting(boolean isAdjusting)
if (isAdjusting != this.isAdjusting) {
this.isAdjusting = isAdjusting;
this.fireValueChanged(isAdjusting);
}
|
| public java.lang.String | toString()
String s = ((getValueIsAdjusting()) ? "~" : "=") + value.toString();
return getClass().getName() + " " + Integer.toString(hashCode()) + " " + s;
|
| private void | updateLeadAnchorIndices(int anchorIndex, int leadIndex)
if (leadAnchorNotificationEnabled) {
if (this.anchorIndex != anchorIndex) {
if (this.anchorIndex != -1) { // The unassigned state.
markAsDirty(this.anchorIndex);
}
markAsDirty(anchorIndex);
}
if (this.leadIndex != leadIndex) {
if (this.leadIndex != -1) { // The unassigned state.
markAsDirty(this.leadIndex);
}
markAsDirty(leadIndex);
}
}
this.anchorIndex = anchorIndex;
this.leadIndex = leadIndex;
|
