* Dialog field describing a group with buttons (Checkboxes, radio buttons..)
*/
public class SelectionButtonDialogFieldGroup extends DialogField {
-
+
private Composite fButtonComposite;
-
+
private Button[] fButtons;
+
private String[] fButtonNames;
+
private boolean[] fButtonsSelected;
+
private boolean[] fButtonsEnabled;
-
+
private int fGroupBorderStyle;
+
private int fGroupNumberOfColumns;
- private int fButtonsStyle;
-
+
+ private int fButtonsStyle;
+
/**
* Creates a group without border.
*/
- public SelectionButtonDialogFieldGroup(int buttonsStyle, String[] buttonNames, int nColumns) {
- this(buttonsStyle, buttonNames, nColumns, SWT.NONE);
- }
-
-
+ public SelectionButtonDialogFieldGroup(int buttonsStyle,
+ String[] buttonNames, int nColumns) {
+ this(buttonsStyle, buttonNames, nColumns, SWT.NONE);
+ }
+
/**
- * Creates a group with border (label in border).
- * Accepted button styles are: SWT.RADIO, SWT.CHECK, SWT.TOGGLE
- * For border styles see <code>Group</code>
- */
- public SelectionButtonDialogFieldGroup(int buttonsStyle, String[] buttonNames, int nColumns, int borderStyle) {
+ * Creates a group with border (label in border). Accepted button styles
+ * are: SWT.RADIO, SWT.CHECK, SWT.TOGGLE For border styles see
+ * <code>Group</code>
+ */
+ public SelectionButtonDialogFieldGroup(int buttonsStyle,
+ String[] buttonNames, int nColumns, int borderStyle) {
super();
-
- Assert.isTrue(buttonsStyle == SWT.RADIO || buttonsStyle == SWT.CHECK || buttonsStyle == SWT.TOGGLE);
- fButtonNames= buttonNames;
-
- int nButtons= buttonNames.length;
- fButtonsSelected= new boolean[nButtons];
- fButtonsEnabled= new boolean[nButtons];
- for (int i= 0; i < nButtons; i++) {
- fButtonsSelected[i]= false;
- fButtonsEnabled[i]= true;
+
+ Assert.isTrue(buttonsStyle == SWT.RADIO || buttonsStyle == SWT.CHECK
+ || buttonsStyle == SWT.TOGGLE);
+ fButtonNames = buttonNames;
+
+ int nButtons = buttonNames.length;
+ fButtonsSelected = new boolean[nButtons];
+ fButtonsEnabled = new boolean[nButtons];
+ for (int i = 0; i < nButtons; i++) {
+ fButtonsSelected[i] = false;
+ fButtonsEnabled[i] = true;
}
if (fButtonsStyle == SWT.RADIO) {
- fButtonsSelected[0]= true;
+ fButtonsSelected[0] = true;
}
-
- fGroupBorderStyle= borderStyle;
- fGroupNumberOfColumns= (nColumns <= 0) ? nButtons : nColumns;
-
- fButtonsStyle= buttonsStyle;
-
+
+ fGroupBorderStyle = borderStyle;
+ fGroupNumberOfColumns = (nColumns <= 0) ? nButtons : nColumns;
+
+ fButtonsStyle = buttonsStyle;
+
}
-
+
// ------- layout helpers
-
+
/*
* @see DialogField#doFillIntoGrid
*/
public Control[] doFillIntoGrid(Composite parent, int nColumns) {
assertEnoughColumns(nColumns);
-
+
if (fGroupBorderStyle == SWT.NONE) {
- Label label= getLabelControl(parent);
+ Label label = getLabelControl(parent);
label.setLayoutData(gridDataForLabel(1));
-
- Composite buttonsgroup= getSelectionButtonsGroup(parent);
- GridData gd= new GridData();
- gd.horizontalSpan= nColumns - 1;
+
+ Composite buttonsgroup = getSelectionButtonsGroup(parent);
+ GridData gd = new GridData();
+ gd.horizontalSpan = nColumns - 1;
buttonsgroup.setLayoutData(gd);
-
+
return new Control[] { label, buttonsgroup };
} else {
- Composite buttonsgroup= getSelectionButtonsGroup(parent);
- GridData gd= new GridData();
- gd.horizontalSpan= nColumns;
+ Composite buttonsgroup = getSelectionButtonsGroup(parent);
+ GridData gd = new GridData();
+ gd.horizontalSpan = nColumns;
buttonsgroup.setLayoutData(gd);
-
+
return new Control[] { buttonsgroup };
}
- }
+ }
/*
* @see DialogField#doFillIntoGrid
- */
+ */
public int getNumberOfControls() {
return (fGroupBorderStyle == SWT.NONE) ? 2 : 1;
}
-
+
// ------- ui creation
-
- private Button createSelectionButton(int index, Composite group, SelectionListener listener) {
- Button button= new Button(group, fButtonsStyle | SWT.LEFT);
- button.setFont(group.getFont());
+
+ private Button createSelectionButton(int index, Composite group,
+ SelectionListener listener) {
+ Button button = new Button(group, fButtonsStyle | SWT.LEFT);
+ button.setFont(group.getFont());
button.setText(fButtonNames[index]);
button.setEnabled(isEnabled() && fButtonsEnabled[index]);
button.setSelection(fButtonsSelected[index]);
}
/**
- * Returns the group widget. When called the first time, the widget will be created.
- * @param The parent composite when called the first time, or <code>null</code>
- * after.
+ * Returns the group widget. When called the first time, the widget will be
+ * created.
+ *
+ * @param The
+ * parent composite when called the first time, or
+ * <code>null</code> after.
*/
public Composite getSelectionButtonsGroup(Composite parent) {
if (fButtonComposite == null) {
assertCompositeNotNull(parent);
-
- GridLayout layout= new GridLayout();
- layout.makeColumnsEqualWidth= true;
- layout.numColumns= fGroupNumberOfColumns;
-
+
+ GridLayout layout = new GridLayout();
+ layout.makeColumnsEqualWidth = true;
+ layout.numColumns = fGroupNumberOfColumns;
+
if (fGroupBorderStyle != SWT.NONE) {
- Group group= new Group(parent, fGroupBorderStyle);
+ Group group = new Group(parent, fGroupBorderStyle);
if (fLabelText != null && fLabelText.length() > 0) {
group.setText(fLabelText);
}
- fButtonComposite= group;
+ fButtonComposite = group;
} else {
- fButtonComposite= new Composite(parent, SWT.NULL);
- layout.marginHeight= 0;
- layout.marginWidth= 0;
+ fButtonComposite = new Composite(parent, SWT.NULL);
+ layout.marginHeight = 0;
+ layout.marginWidth = 0;
}
fButtonComposite.setLayout(layout);
-
- SelectionListener listener= new SelectionListener() {
+
+ SelectionListener listener = new SelectionListener() {
public void widgetDefaultSelected(SelectionEvent e) {
doWidgetSelected(e);
}
+
public void widgetSelected(SelectionEvent e) {
doWidgetSelected(e);
}
- };
- int nButtons= fButtonNames.length;
- fButtons= new Button[nButtons];
- for (int i= 0; i < nButtons; i++) {
- fButtons[i]= createSelectionButton(i, fButtonComposite, listener);
+ };
+ int nButtons = fButtonNames.length;
+ fButtons = new Button[nButtons];
+ for (int i = 0; i < nButtons; i++) {
+ fButtons[i] = createSelectionButton(i, fButtonComposite,
+ listener);
}
- int nRows= nButtons / fGroupNumberOfColumns;
- int nFillElements= nRows * fGroupNumberOfColumns - nButtons;
- for (int i= 0; i < nFillElements; i++) {
+ int nRows = nButtons / fGroupNumberOfColumns;
+ int nFillElements = nRows * fGroupNumberOfColumns - nButtons;
+ for (int i = 0; i < nFillElements; i++) {
createEmptySpace(fButtonComposite);
}
}
}
/**
- * Returns a button from the group or <code>null</code> if not yet created.
- */
+ * Returns a button from the group or <code>null</code> if not yet
+ * created.
+ */
public Button getSelectionButton(int index) {
if (index >= 0 && index < fButtons.length) {
return fButtons[index];
}
return null;
}
-
+
private void doWidgetSelected(SelectionEvent e) {
- Button button= (Button)e.widget;
- for (int i= 0; i < fButtons.length; i++) {
+ Button button = (Button) e.widget;
+ for (int i = 0; i < fButtons.length; i++) {
if (fButtons[i] == button) {
- fButtonsSelected[i]= button.getSelection();
+ fButtonsSelected[i] = button.getSelection();
dialogFieldChanged();
return;
}
}
- }
-
- // ------ model access
+ }
+
+ // ------ model access
/**
* Returns the selection state of a button contained in the group.
- * @param The index of the button
+ *
+ * @param The
+ * index of the button
*/
public boolean isSelected(int index) {
if (index >= 0 && index < fButtonsSelected.length) {
}
return false;
}
-
+
/**
* Sets the selection state of a button contained in the group.
*/
public void setSelection(int index, boolean selected) {
if (index >= 0 && index < fButtonsSelected.length) {
if (fButtonsSelected[index] != selected) {
- fButtonsSelected[index]= selected;
+ fButtonsSelected[index] = selected;
if (fButtons != null) {
- Button button= fButtons[index];
+ Button button = fButtons[index];
if (isOkToUse(button)) {
button.setSelection(selected);
}
}
// ------ enable / disable management
-
+
protected void updateEnableState() {
super.updateEnableState();
if (fButtons != null) {
- boolean enabled= isEnabled();
- for (int i= 0; i < fButtons.length; i++) {
- Button button= fButtons[i];
+ boolean enabled = isEnabled();
+ for (int i = 0; i < fButtons.length; i++) {
+ Button button = fButtons[i];
if (isOkToUse(button)) {
button.setEnabled(enabled && fButtonsEnabled[i]);
}
}
}
}
-
+
/**
* Sets the enable state of a button contained in the group.
- */
+ */
public void enableSelectionButton(int index, boolean enable) {
if (index >= 0 && index < fButtonsEnabled.length) {
- fButtonsEnabled[index]= enable;
+ fButtonsEnabled[index] = enable;
if (fButtons != null) {
- Button button= fButtons[index];
+ Button button = fButtons[index];
if (isOkToUse(button)) {
button.setEnabled(isEnabled() && enable);
}
}
}
- }
+ }
}
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