public Point computeSize(int wHint, int hHint, boolean changed) {
checkWidget();
Point e = getTotalSize(image, text);
if (wHint == SWT.DEFAULT) {
e.x += leftMargin + rightMargin;
} else {
e.x = wHint;
}
if (hHint == SWT.DEFAULT) {
e.y += topMargin + bottomMargin;
} else {
e.y = hHint;
}
return e;
}
@Override
protected Point getInitialSize() {
Point size = super.getInitialSize();
if (size.x < MIN_WIDTH) {
size.x = MIN_WIDTH;
}
if (size.y < MIN_HEIGHT) {
size.y = MIN_HEIGHT;
}
return size;
}
public Point computeSize(int wHint, int hHint, boolean changed) {
checkWidget();
Point size = null;
if (orientation == SWT.HORIZONTAL) {
size = new Point(DEFAULT_WIDTH, DEFAULT_HEIGHT);
} else {
size = new Point(DEFAULT_HEIGHT, DEFAULT_WIDTH);
}
if (wHint != SWT.DEFAULT) size.x = wHint;
if (hHint != SWT.DEFAULT) size.y = hHint;
return size;
}
/** Compute the minimum size. */
private Point getTotalSize(Image image, String text) {
Point size = new Point(0, 0);
if (image != null) {
Rectangle r = image.getBounds();
size.x += r.width;
size.y += r.height;
}
GC gc = new GC(this);
if (text != null && text.length() > 0) {
Point e = gc.textExtent(text, DRAW_FLAGS);
size.x += e.x;
size.y = Math.max(size.y, e.y);
if (image != null) size.x += GAP;
} else {
size.y = Math.max(size.y, gc.getFontMetrics().getHeight());
}
gc.dispose();
return size;
}
private void updatePoint(MouseEvent e) {
p.x = e.x;
p.y = e.y;
}