/**
* Sets the height of the receiver. This is height of the item when it is expanded, excluding the
* height of the header.
*
* @param height the new height
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*/
public void setHeight(int height) {
checkWidget();
if (height < 0) return;
this.height = height;
OS.gtk_widget_set_size_request(clientHandle, -1, height);
parent.layoutItems(0, false);
}
long /*int*/ windowProc(long /*int*/ handle, long /*int*/ user_data) {
switch ((int) /*64*/ user_data) {
case ACTIVATE_INVERSE:
{
expanded = OS.gtk_expander_get_expanded(handle);
parent.layoutItems(0, false);
return 0;
}
}
return super.windowProc(handle, user_data);
}
/**
* Sets the control that is shown when the item is expanded.
*
* @param control the new control (or null)
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_INVALID_ARGUMENT - if the control has been disposed
* <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*/
public void setControl(Control control) {
checkWidget();
if (control != null) {
if (control.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
if (control.parent != parent) error(SWT.ERROR_INVALID_PARENT);
}
if (this.control == control) return;
this.control = control;
if (control != null) {
control.setVisible(expanded);
}
parent.layoutItems(0, true);
}
/**
* Sets the expanded state of the receiver.
*
* @param expanded the new expanded state
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*/
public void setExpanded(boolean expanded) {
checkWidget();
this.expanded = expanded;
OS.gtk_expander_set_expanded(handle, expanded);
parent.layoutItems(0, true);
}
long /*int*/ gtk_size_allocate(long /*int*/ widget, long /*int*/ allocation) {
parent.layoutItems(0, false);
return 0;
}