public void doActivate() {
if (editpart.getExecutionMode() == ExecutionMode.RUN_MODE) {
pvMap.clear();
final Map<StringProperty, PVValueProperty> pvPropertyMap =
editpart.getWidgetModel().getPVMap();
for (final StringProperty sp : pvPropertyMap.keySet()) {
if (sp.getPropertyValue() == null
|| ((String) sp.getPropertyValue()).trim().length() <= 0) {
continue;
}
try {
IPV pv = BOYPVFactory.createPV((String) sp.getPropertyValue(), isAllValuesBuffered);
pvMap.put(sp.getPropertyID(), pv);
WidgetPVListener pvListener = new WidgetPVListener(sp.getPropertyID());
pv.addListener(pvListener);
pvListenerMap.put(sp.getPropertyID(), pvListener);
} catch (Exception e) {
OPIBuilderPlugin.getLogger()
.log(
Level.WARNING,
"Unable to connect to PV:" + (String) sp.getPropertyValue(),
e); //$NON-NLS-1$
}
}
}
}
public void registerBasePropertyChangeHandlers() {
class PVNamePropertyChangeHandler implements IWidgetPropertyChangeHandler {
private String pvNamePropID;
public PVNamePropertyChangeHandler(String pvNamePropID) {
this.pvNamePropID = pvNamePropID;
}
public boolean handleChange(Object oldValue, Object newValue, IFigure figure) {
IPV oldPV = pvMap.get(pvNamePropID);
if (oldPV != null) {
oldPV.stop();
oldPV.removeListener(pvListenerMap.get(pvNamePropID));
}
pvMap.remove(pvNamePropID);
String newPVName = ((String) newValue).trim();
if (newPVName.length() <= 0) return false;
try {
lastWriteAccess = null;
IPV newPV = BOYPVFactory.createPV(newPVName, isAllValuesBuffered);
WidgetPVListener pvListener = new WidgetPVListener(pvNamePropID);
newPV.addListener(pvListener);
pvMap.put(pvNamePropID, newPV);
pvListenerMap.put(pvNamePropID, pvListener);
newPV.start();
} catch (Exception e) {
OPIBuilderPlugin.getLogger()
.log(
Level.WARNING,
"Unable to connect to PV:"
+ //$NON-NLS-1$
newPVName,
e);
}
return false;
}
}
// PV name
for (StringProperty pvNameProperty : editpart.getWidgetModel().getPVMap().keySet()) {
if (editpart.getExecutionMode() == ExecutionMode.RUN_MODE)
editpart.setPropertyChangeHandler(
pvNameProperty.getPropertyID(),
new PVNamePropertyChangeHandler(pvNameProperty.getPropertyID()));
}
if (editpart.getExecutionMode() == ExecutionMode.EDIT_MODE)
editpart
.getWidgetModel()
.getProperty(IPVWidgetModel.PROP_PVNAME)
.addPropertyChangeListener(
new PropertyChangeListener() {
@Override
public void propertyChange(PropertyChangeEvent evt) {
// reselect the widget to update feedback.
int selected = editpart.getSelected();
if (selected != EditPart.SELECTED_NONE) {
editpart.setSelected(EditPart.SELECTED_NONE);
editpart.setSelected(selected);
}
}
});
}