void internalLayout(boolean changed) {
if (isDropped()) dropDown(false);
Rectangle rect = getClientArea();
int width = rect.width;
int height = rect.height;
Point arrowSize = arrow.computeSize(SWT.DEFAULT, height, changed);
if (icon != null) {
Point iconSize = icon.computeSize(SWT.DEFAULT, height, changed);
text.setBounds(0, 0, width - arrowSize.x - iconSize.x, height);
icon.setBounds(width - arrowSize.x - iconSize.x, 0, iconSize.x, height);
arrow.setBounds(width - arrowSize.x, 0, arrowSize.x, arrowSize.y);
} else {
text.setBounds(0, 0, width - arrowSize.x, height);
arrow.setBounds(width - arrowSize.x, 0, arrowSize.x, arrowSize.y);
}
}
public void redraw() {
super.redraw();
text.redraw();
arrow.redraw();
if (icon != null) icon.redraw();
if (popup.isVisible()) list.redraw();
}
public Point computeSize(int wHint, int hHint, boolean changed) {
checkWidget();
int width = 0, height = 0;
String[] items = list.getItems();
int textWidth = 0;
GC gc = new GC(text);
int spacer = gc.stringExtent(" ").x; // $NON-NLS-1$
for (int i = 0; i < items.length; i++) {
textWidth = Math.max(gc.stringExtent(items[i]).x, textWidth);
}
gc.dispose();
Point textSize = text.computeSize(SWT.DEFAULT, SWT.DEFAULT, changed);
Point arrowSize = arrow.computeSize(SWT.DEFAULT, SWT.DEFAULT, changed);
Point listSize = list.computeSize(wHint, SWT.DEFAULT, changed);
int borderWidth = getBorderWidth();
if (icon == null) {
height = Math.max(hHint, Math.max(textSize.y, arrowSize.y) + 2 * borderWidth);
width =
Math.max(
wHint, Math.max(textWidth + 2 * spacer + arrowSize.x + 2 * borderWidth, listSize.x));
} else {
Point iconSize = icon.computeSize(SWT.DEFAULT, SWT.DEFAULT, changed);
height = Math.max(hHint, Math.max(textSize.y, arrowSize.y) + 2 * borderWidth);
width =
Math.max(
wHint,
Math.max(
textWidth + 2 * spacer + arrowSize.x + iconSize.x + 2 * borderWidth, listSize.x));
}
return new Point(width, height);
}
public void setEnabled(boolean enabled) {
super.setEnabled(enabled);
if (popup != null) popup.setVisible(false);
if (text != null) text.setEnabled(enabled);
if (icon != null) icon.setEnabled(enabled);
if (arrow != null) arrow.setEnabled(enabled);
}
public void setForeground(Color color) {
super.setForeground(color);
foreground = color;
if (text != null) text.setForeground(color);
if (list != null) list.setForeground(color);
if (icon != null) icon.setForeground(color);
if (arrow != null) arrow.setForeground(color);
}
public void setFont(Font font) {
super.setFont(font);
this.font = font;
text.setFont(font);
if (icon != null) icon.setFont(font);
list.setFont(font);
internalLayout(true);
}
private void update(Hyperlink hyperlink, Object object) {
String text = labelProvider != null ? labelProvider.getText(object) : object.toString();
Image image = labelProvider != null ? labelProvider.getImage(object) : null;
String tooltip = labelProvider != null ? labelProvider.getToolTipText(object) : text;
hyperlink.setText(text);
hyperlink.setToolTipText(tooltip);
if (hyperlink instanceof ImageHyperlink) ((ImageHyperlink) hyperlink).setImage(image);
reflow();
}
public boolean isFocusControl() {
checkWidget();
if (text.isFocusControl()
|| arrow.isFocusControl()
|| list.isFocusControl()
|| icon.isFocusControl()
|| popup.isFocusControl()) {
return true;
}
return super.isFocusControl();
}
private void createLink(Object object) {
Image image = labelProvider != null ? labelProvider.getImage(object) : null;
Hyperlink hyperlink;
if (image != null) {
hyperlink = getManagedForm().getToolkit().createImageHyperlink(linkContainer, SWT.NULL);
((ImageHyperlink) hyperlink).setImage(image);
} else hyperlink = getManagedForm().getToolkit().createHyperlink(linkContainer, null, SWT.NULL);
update(hyperlink, object);
hyperlink.setData(object);
hyperlink.addHyperlinkListener(linkHandler);
}
