protected void setEditorLanguageObject(ILanguageObject theEditorLangObj) {
getEditor().setLanguageObject(savedSelection);
if (!editor.isEnabled()) {
editor.setEnabled(true);
}
}
@Override
public void create() {
super.create();
editor = createEditor(pnlEditorDetail);
editor
.getModel()
.addModelListener(
new ILanguageObjectEditorModelListener() {
public void modelChanged(LanguageObjectEditorModelEvent theEvent) {
handleModelChanged();
}
});
lblTitle.setText(editor.getTitle());
Composite pnlEditorButtons = new Composite(pnlEditor, SWT.NONE);
pnlEditorButtons.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_CENTER));
pnlEditorButtons.setLayout(new GridLayout());
//
// pnlEditorButtons contents
//
btnSet = new Button(pnlEditorButtons, SWT.NONE);
btnSet.setEnabled(false);
btnSet.setText(Util.getString(PREFIX + "btnSet")); // $NON-NLS-1$
btnSet.setToolTipText(Util.getString(PREFIX + "btnSet.tip")); // $NON-NLS-1$
btnSet.addSelectionListener(
new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent theEvent) {
handleSetSelected();
}
});
btnReset = new Button(pnlEditorButtons, SWT.NONE);
btnReset.setEnabled(false);
btnReset.setText(Util.getString(PREFIX + "btnReset")); // $NON-NLS-1$
btnReset.setToolTipText(Util.getString(PREFIX + "btnReset.tip")); // $NON-NLS-1$
btnReset.addSelectionListener(
new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent theEvent) {
handleResetSelected();
}
});
setLanguageObject(null); // needed to establish the viewer input
// select root tree node after all construction is finished
Display.getDefault()
.asyncExec(
new Runnable() {
public void run() {
treeViewer.selectRoot();
}
});
}
protected void handleDeleteSelected() {
editor.clear();
treeViewer.deleteSelection();
// update SQL text
setCurrentSql(treeViewer.getLanguageObject());
editor.acceptFocus();
}
void handleModelChanged() {
boolean isEnabled = false;
boolean isComplete = false;
boolean hasChanged = false;
isEnabled = editor.isEnabled();
if (isEnabled) {
isComplete = editor.isComplete();
}
if (isComplete) {
hasChanged = editor.hasChanged();
}
boolean state = (isEnabled && isComplete && hasChanged);
btnSet.setEnabled(state);
btnReset.setEnabled(state);
setCurrentSql(treeViewer.getLanguageObject());
// set enable/disable status of buttons
setEnabledStatus();
}
protected void handleTreeSelection() {
IStructuredSelection selection = (IStructuredSelection) treeViewer.getSelection();
Object selectedObj = selection.getFirstElement();
if (selectedObj == null) {
savedSelection = null;
if (editor.isEnabled()) {
editor.setEnabled(false);
}
} else {
// selection with either be a LanguageObject or an Undefined object (String)
savedSelection =
(selectedObj instanceof ILanguageObject) ? (ILanguageObject) selectedObj : null;
}
setEditorLanguageObject(savedSelection);
// set enable/disable status of buttons
setEnabledStatus();
}
protected void handleSetSelected() {
editor.save();
// need the editor's language object in order to update tree.
// the language object should never be null. if it was this handler should not have been called
ILanguageObject langObj = editor.getLanguageObject();
CoreArgCheck.isNotNull(
langObj,
Util.getString(
PREFIX + "nullLangObj", // $NON-NLS-1$
new Object[] {"handleSetSelected"})); // $NON-NLS-1$
// update tree
treeViewer.modifySelectedItem(langObj, false);
// update SQL text
setCurrentSql(treeViewer.getLanguageObject());
// put focus back on editor from the set button
editor.acceptFocus();
}
protected void handleResetSelected() {
editor.reset();
// put focus back on editor from the reset button
editor.acceptFocus();
}
