/** Refresh the enable/disable state for the buttons. */
private void updateButtons() {
IStructuredSelection selection = (IStructuredSelection) fVariablesViewer.getSelection();
fRemoveButton.setEnabled(!selection.isEmpty());
boolean enableUp = true, enableDown = true;
Object[] libraries = fEnvironmentVariablesContentProvider.getElements(null);
if (selection.isEmpty() || libraries.length == 0) {
enableUp = false;
enableDown = false;
} else {
Object first = libraries[0];
Object last = libraries[libraries.length - 1];
for (Iterator iter = selection.iterator(); iter.hasNext(); ) {
Object element = iter.next();
Object lib;
lib = element;
if (lib == first) {
enableUp = false;
}
if (lib == last) {
enableDown = false;
}
}
}
// fUpButton.setEnabled(enableUp);
// fDownButton.setEnabled(enableDown);
}
private void edit(IStructuredSelection selection) {
IStructuredSelection sel = (IStructuredSelection) selection;
EnvironmentVariable var = (EnvironmentVariable) sel.getFirstElement();
if (var == null) {
return;
}
String originalName = var.getName();
String value = var.getValue();
MultipleInputDialog dialog =
new MultipleInputDialog(
fDialog.getShell(),
InterpretersMessages.AbstractInterpreterEnvironmentVariablesBlock_editVariable);
dialog.addTextField(NAME_LABEL, originalName, false);
dialog.addVariablesField(VALUE_LABEL, value, true);
if (dialog.open() != Window.OK) {
return;
}
String name = dialog.getStringValue(NAME_LABEL);
value = dialog.getStringValue(VALUE_LABEL);
if (!originalName.equals(name)) {
fEnvironmentVariablesContentProvider.add(
new EnvironmentVariable[] {new EnvironmentVariable(name, value)}, selection);
} else {
var.setValue(value);
fVariablesViewer.refresh(true);
}
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.swt.events.SelectionListener#widgetSelected(org.eclipse.swt
* .events.SelectionEvent)
*/
public void widgetSelected(SelectionEvent e) {
Object source = e.getSource();
/*
* if (source == fUpButton) { fEnvironmentVariablesContentProvider
* .up((IStructuredSelection) fLibraryViewer.getSelection()); } else if
* (source == fDownButton) { fEnvironmentVariablesContentProvider
* .down((IStructuredSelection) fLibraryViewer.getSelection()); } else
*/ if (source == fRemoveButton) {
EnvironmentVariable[] old = this.fEnvironmentVariablesContentProvider.getVariables();
fEnvironmentVariablesContentProvider.remove(
(IStructuredSelection) fVariablesViewer.getSelection());
fDialog.updateLibraries(this.fEnvironmentVariablesContentProvider.getVariables(), old);
} else if (source == fAddExistedButton) {
addExisted((IStructuredSelection) fVariablesViewer.getSelection());
} else if (source == fAddButton) {
add((IStructuredSelection) fVariablesViewer.getSelection());
} else if (source == fEditButton) {
EnvironmentVariable[] old = this.fEnvironmentVariablesContentProvider.getVariables();
edit((IStructuredSelection) fVariablesViewer.getSelection());
fDialog.updateLibraries(this.fEnvironmentVariablesContentProvider.getVariables(), old);
} else if (source == fImportButton) {
performImport();
} else if (source == fExportButton) {
performExport();
}
update();
}
/** The "default" button has been toggled */
public void restoreDefaultVariables() {
final EnvironmentVariable[][] libs = new EnvironmentVariable[][] {null};
libs[0] = new EnvironmentVariable[0];
if (libs != null) fEnvironmentVariablesContentProvider.setVariables(libs[0]);
update();
}
private void addExisted(IStructuredSelection selection) {
EnvironmentVariable[] libs = addExisted();
if (libs == null) return;
EnvironmentVariable[] old = this.fEnvironmentVariablesContentProvider.getVariables();
fEnvironmentVariablesContentProvider.add(libs, selection);
fDialog.updateLibraries(this.fEnvironmentVariablesContentProvider.getVariables(), old);
update();
}
/**
* Initializes this control based on the settings in the given Interpreter install and type.
*
* @param Interpreter Interpreter or <code>null</code> if none
* @param type type of Interpreter install
*/
public void initializeFrom(IInterpreterInstall Interpreter, IInterpreterInstallType type) {
fInterpreterInstall = Interpreter;
fInterpreterInstallType = type;
if (Interpreter != null) {
fEnvironmentVariablesContentProvider.setVariables(
getInterpreterInstall().getEnvironmentVariables());
}
update();
}
/** Updates buttons and status based on current libraries */
public void update() {
updateButtons();
IStatus status = Status.OK_STATUS;
EnvironmentVariable[] standins = fEnvironmentVariablesContentProvider.getStandins();
for (int i = 0; i < standins.length; i++) {
IStatus st = standins[i].validate();
if (!st.isOK()) {
status = st;
break;
}
}
updateDialogStatus(status);
}
protected EnvironmentVariable[] addExisted() {
// get Environment Variables from the Environment
Map envVariables = getNativeEnvironment();
if (envVariables.size() == 0) {
MessageBox box = new MessageBox(fDialog.getShell(), SWT.ICON_ERROR);
box.setMessage(
MessageFormat.format(
InterpretersMessages
.AbstractInterpreterEnvironmentVariablesBlock_couldNotRetrieveEnvironmentVariablesFrom,
new Object[] {fDialog.getEnvironment().getName()}));
box.setText(
InterpretersMessages
.AbstractInterpreterEnvironmentVariablesBlock_failedToRetrieveEnvironment);
box.open();
return null;
}
// get Environment Variables from the table
EnvironmentVariable[] items = fEnvironmentVariablesContentProvider.getVariables();
for (int i = 0; i < items.length; i++) {
EnvironmentVariable var = (EnvironmentVariable) items[i];
envVariables.remove(var.getName());
}
ListSelectionDialog dialog =
new ListSelectionDialog(
fDialog.getShell(),
envVariables,
createSelectionDialogContentProvider(),
createSelectionDialogLabelProvider(),
LaunchConfigurationsMessages.EnvironmentTab_19);
dialog.setTitle(LaunchConfigurationsMessages.EnvironmentTab_20);
int button = dialog.open();
if (button == Window.OK) {
Object[] selected = dialog.getResult();
EnvironmentVariable[] vars = new EnvironmentVariable[selected.length];
for (int i = 0; i < vars.length; i++) {
vars[i] = (EnvironmentVariable) selected[i];
}
return vars;
}
return null;
}
/**
* Determines if the present setup is the default location s for this InterpreterEnvironment
*
* @return true if the current set of locations are the defaults, false otherwise
*/
protected boolean isDefaultLocations() {
EnvironmentVariable[] EnvironmentVariables =
fEnvironmentVariablesContentProvider.getVariables();
IInterpreterInstall install = getInterpreterInstall();
if (install == null || EnvironmentVariables == null) {
return true;
}
IFileHandle installLocation = install.getInstallLocation();
if (installLocation != null) {
EnvironmentVariable[] def = new EnvironmentVariable[0];
if (def.length == EnvironmentVariables.length) {
for (int i = 0; i < def.length; i++) {
if (!def[i].equals(EnvironmentVariables[i])) {
return false;
}
}
return true;
}
}
return false;
}
/** Saves settings in the given working copy */
public void performApply(IInterpreterInstall install) {
EnvironmentVariable[] libs = fEnvironmentVariablesContentProvider.getVariables();
install.setEnvironmentVariables(libs);
}