/** Find the hosting frame, for the file-chooser dialog. */
protected Frame getFrame() {
for (Container p = getParent(); p != null; p = p.getParent()) {
if (p instanceof Frame) {
return (Frame) p;
}
}
return null;
}
/** Return the root container (ie Frame) of this component. */
public Container getRootParent() {
Container c = getParent(), prev = null;
while (c != null) {
prev = c;
c = c.getParent();
}
return prev;
}
/**
* Convenience method for searching above the given component in the component hierarchy and
* returns the first object of the given type it finds, or <code>null</code> if no such parent was
* found.
*
* <p>The reason this method exists is for tidyness of the calling code, as no longer a explicit
* cast is needed.
*
* @param aType the type of the parent to find, cannot be <code>null</code>;
* @param aComponent the component to search in the hierarchy, cannot be <code>null</code>.
* @return the requested ancestor, or <code>null</code> if not found.
* @see SwingUtilities#getAncestorOfClass(Class, Component)
*/
@SuppressWarnings("unchecked")
public static <T> T getAncestorOfClass(final Class<T> aType, final Component aComponent) {
if ((aComponent == null) || (aType == null)) {
return null;
}
Container parent = aComponent.getParent();
while ((parent != null) && !(aType.isInstance(parent))) {
parent = parent.getParent();
}
return (T) parent;
}
void this_mouseClicked(MouseEvent e) {
if (e.getClickCount() == 1) {
int row = this.getSelectedRow();
ItemTableDwnld item = (ItemTableDwnld) getMessageList().get(row);
Container parent = (Container) this;
while ((parent != null) && !(parent instanceof FrmMain)) parent = parent.getParent();
if (parent != null) {
((FrmMain) parent).setTxtName(item.getTextName());
((FrmMain) parent).setTxtTextStart(item.getTextStart());
((FrmMain) parent).setTxtTextEnd(item.getTextEnd());
((FrmMain) parent).setTxtPath(item.getTextPath());
((FrmMain) parent).setCboxType(item.getTextType());
((FrmMain) parent).enableBtnUpDown(row);
}
}
}
/**
* Calculates the preferred size dimensions for the specified panel given the components in the
* specified parent container.
*
* @see #minimumLayoutSize
* @param target The component to be laid out.
* @return A size deemed suitable for laying out the container.
*/
public Dimension preferredLayoutSize(Container target) {
int count;
Container parent;
Component component;
Point point;
Dimension dimension;
Insets insets;
Dimension ret;
synchronized (target.getTreeLock()) {
count = target.getComponentCount();
if (0 == count) {
// be the same size unless we have a parent
ret = target.getSize();
parent = target.getParent();
if (null != parent) {
insets = parent.getInsets();
ret = parent.getSize();
ret.setSize(
ret.width - insets.left - insets.right, ret.height - insets.top - insets.bottom);
}
} else {
ret = new Dimension(0, 0);
for (int i = 0; i < count; i++) {
component = target.getComponent(i);
if (component.isVisible()) {
point = component.getLocation();
dimension = component.getPreferredSize();
ret.width = Math.max(ret.width, point.x + dimension.width);
ret.height = Math.max(ret.height, point.y + dimension.height);
}
}
insets = target.getInsets();
ret.width += insets.left + insets.right;
ret.height += insets.top + insets.bottom;
}
}
return (ret);
}
