/**
* One of three methods defined by the Transferable interface.
*
* <p>Returns supported DataFlavor. Again, we're only supporting this actual Object within the
* JVM.
*
* <p>For more information, see the JavaDoc for DataFlavor.
*
* @return
*/
public DataFlavor[] getTransferDataFlavors() {
DataFlavor[] flavors = {null};
System.out.println(
"Step 4 of 7: Querying for acceptable DataFlavors to determine what is available. Our example only supports our custom RandomDragAndDropPanel DataFlavor.");
try {
flavors[0] = ServoOrchestratorGUI_middlemiddle_main.getDragAndDropPanelDataFlavor();
} catch (Exception ex) {
System.err.println("Problem lazy loading: " + ex.getMessage());
ex.printStackTrace(System.err);
return null;
}
return flavors;
}
/**
* One of three methods defined by the Transferable interface.
*
* <p>Determines whether this object supports the DataFlavor. In this case, only one is supported:
* for this object itself.
*
* @param flavor
* @return True if DataFlavor is supported, otherwise false.
*/
public boolean isDataFlavorSupported(DataFlavor flavor) {
System.out.println(
"Step 6 of 7: Verifying that DataFlavor is supported. Our example only supports our custom RandomDragAndDropPanel DataFlavor.");
DataFlavor[] flavors = {null};
try {
flavors[0] = ServoOrchestratorGUI_middlemiddle_main.getDragAndDropPanelDataFlavor();
} catch (Exception ex) {
System.err.println("Problem lazy loading: " + ex.getMessage());
ex.printStackTrace(System.err);
return false;
}
for (DataFlavor f : flavors) {
if (f.equals(flavor)) {
return true;
}
}
return false;
}
/**
* One of three methods defined by the Transferable interface.
*
* <p>If multiple DataFlavor's are supported, can choose what Object to return.
*
* <p>In this case, we only support one: the actual JPanel.
*
* <p>Note we could easily support more than one. For example, if supports text and drops to a
* JTextField, could return the label's text or any arbitrary text.
*
* @param flavor
* @return
*/
public Object getTransferData(DataFlavor flavor) {
System.out.println(
"Step 7 of 7: Returning the data from the Transferable object. In this case, the actual panel is now transfered!");
DataFlavor thisFlavor = null;
try {
thisFlavor = ServoOrchestratorGUI_middlemiddle_main.getDragAndDropPanelDataFlavor();
} catch (Exception ex) {
System.err.println("Problem lazy loading: " + ex.getMessage());
ex.printStackTrace(System.err);
return null;
}
// For now, assume wants this class... see loadDnD
if (thisFlavor != null && flavor.equals(thisFlavor)) {
return ServoOrchestratorGUI_middlemiddle_panel.this;
}
return null;
}
