public void enableControlPanel() {
boolean bVisible = false;
int nmembers = buttonPane.getComponentCount();
for (int k = 0; k < nmembers; k++) {
Component comp = buttonPane.getComponent(k);
if (comp != null) {
if (comp.isVisible() || comp.isEnabled()) {
bVisible = true;
break;
}
}
}
if (bVisible && !buttonPane.isVisible()) {
Dimension dim = getSize();
Dimension dim1 = buttonPane.getPreferredSize();
int w = dim.width;
int h = dim.height + dim1.height;
if (dim1.width > w) w = dim1.width;
if (w < 300) w = 300;
if (h < 200) h = 200;
setSize(w, h);
}
buttonPane.setVisible(bVisible);
}
