/**
* Processes the save action.
*
* @param rgb The new RGB value.
*/
protected void processAction(RGB rgb) {
String newComboText = predefinedColor;
if (newComboText == null) newComboText = formatRGB(rgb);
if (!combo.getText().equals(newComboText)) combo.setText(newComboText);
if (oldRgb == null && rgb == null) return;
if (rgb != null && rgb.equals(oldRgb)) return;
oldRgb = rgb;
if (rgb == null || !rgb.equals(colorSelector.getColorValue())) colorSelector.setColorValue(rgb);
notifyListeners(SWT.Modify, null);
}
public Point computeSize(int wHint, int hHint, boolean changed) {
checkWidget();
int width = 0, height = 0;
GC gc = new GC(combo);
Point labelExtent = gc.textExtent("RGB(255,255,255)"); // $NON-NLS-1$
gc.dispose();
Point labelSize = combo.computeSize(labelExtent.x, labelExtent.y, changed);
Point tableSize = colorSelector.getButton().computeSize(wHint, SWT.DEFAULT, changed);
int borderWidth = getBorderWidth();
height = Math.max(hHint, Math.max(labelSize.y, tableSize.y) + 2 * borderWidth);
width = Math.max(wHint, labelSize.x + tableSize.x + 2 * borderWidth);
return new Point(width, height);
}
public void setRGB(RGB rgb) {
oldRgb = rgb;
if (combo.isDisposed()) {
return;
}
colorSelector.setColorValue(rgb);
String newComboText = predefinedColor;
if (predefinedColor == null) {
if (rgb == null) {
newComboText = NONE_CHOICE;
} else {
newComboText = formatRGB(rgb);
}
}
if (!combo.getText().equals(newComboText)) {
combo.setText(newComboText);
}
}
/**
* The constructor.
*
* @param parent a widget which will be the parent of the new instance (cannot be null)
* @param style the style of widget to construct
*/
public ColorControl(Composite parent, int style) {
super(parent, style);
setLayout(WidgetUtil.createSpaceGridLayout(2, 0));
((GridLayout) getLayout()).horizontalSpacing = 2;
colorSelector = new ColorSelector(this);
{
GridData data = new GridData();
data.widthHint = 50;
data.grabExcessHorizontalSpace = false;
colorSelector.getButton().setLayoutData(data);
}
colorSelector.addListener(
new IPropertyChangeListener() {
public void propertyChange(PropertyChangeEvent event) {
predefinedColor = null;
processAction(colorSelector.getColorValue());
}
});
combo = new Combo(this, SWT.DROP_DOWN);
{
GridData data = new GridData();
data.horizontalAlignment = GridData.FILL;
data.grabExcessHorizontalSpace = true;
// data.widthHint = 80;
combo.setLayoutData(data);
}
combo.add(NONE_CHOICE);
combo.addFocusListener(
new FocusListener() {
public void focusGained(org.eclipse.swt.events.FocusEvent e) {}
public void focusLost(org.eclipse.swt.events.FocusEvent e) {
combo.notifyListeners(SWT.DefaultSelection, null);
}
});
combo.addSelectionListener(
new SelectionListener() {
public void widgetSelected(SelectionEvent e) {
predefinedColor = combo.getText();
if (NONE_CHOICE.equals(predefinedColor)) {
predefinedColor = null;
processAction(null);
return;
}
String colorName = predefinedColor;
if (choiceSet != null) {
if (choiceSet.findChoiceByDisplayName(colorName) != null)
colorName = choiceSet.findChoiceByDisplayName(colorName).getName();
}
int[] intRgb = ColorUtil.getRGBs(colorName);
RGB rgb = null;
if (intRgb != null) {
rgb = new RGB(intRgb[0], intRgb[1], intRgb[2]);
}
processAction(rgb);
}
public void widgetDefaultSelected(SelectionEvent e) {
predefinedColor = null;
String string = combo.getText();
int index = -1;
String[] items = combo.getItems();
for (int i = 0; i < items.length; i++) {
if (items[i].equalsIgnoreCase(string)) {
index = i;
combo.setText(items[i]);
break;
}
}
if (index != -1) {
widgetSelected(null);
return;
}
RGB rgb = parseString(string);
if (rgb == null) {
combo.deselectAll();
notifyListeners(SWT.Modify, null);
} else processAction(rgb);
}
});
initAccessible();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.swt.widgets.Control#setEnabled(boolean)
*/
public void setEnabled(boolean enabled) {
combo.setEnabled(enabled);
colorSelector.setEnabled(enabled);
super.setEnabled(enabled);
}
