Java Code Examples for sun.awt.AWTAccessor#getDragSourceContextAccessor()

The following examples show how to use sun.awt.AWTAccessor#getDragSourceContextAccessor() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: DragSource.java    From Bytecoder with Apache License 2.0 3 votes vote down vote up 
/**
 * Start a drag, given the {@code DragGestureEvent}
 * that initiated the drag, the initial
 * {@code Cursor} to use,
 * the {@code Image} to drag,
 * the offset of the {@code Image} origin
 * from the hotspot of the {@code Cursor} at
 * the instant of the trigger,
 * the {@code Transferable} subject data
 * of the drag, the {@code DragSourceListener},
 * and the {@code FlavorMap}.
 *
 * @param trigger        the {@code DragGestureEvent} that initiated the drag
 * @param dragCursor     the initial {@code Cursor} for this drag operation
 *                       or {@code null} for the default cursor handling;
 *                       see <a href="DragSourceContext.html#defaultCursor">DragSourceContext</a>
 *                       for more details on the cursor handling mechanism during drag and drop
 * @param dragImage      the image to drag or {@code null}
 * @param imageOffset    the offset of the {@code Image} origin from the hotspot
 *                       of the {@code Cursor} at the instant of the trigger
 * @param transferable   the subject data of the drag
 * @param dsl            the {@code DragSourceListener}
 * @param flavorMap      the {@code FlavorMap} to use, or {@code null}
 *
 * @throws java.awt.dnd.InvalidDnDOperationException
 *    if the Drag and Drop
 *    system is unable to initiate a drag operation, or if the user
 *    attempts to start a drag while an existing drag operation
 *    is still executing
 */

public void startDrag(DragGestureEvent   trigger,
                      Cursor             dragCursor,
                      Image              dragImage,
                      Point              imageOffset,
                      Transferable       transferable,
                      DragSourceListener dsl,
                      FlavorMap          flavorMap) throws InvalidDnDOperationException {

    SunDragSourceContextPeer.setDragDropInProgress(true);

    try {
        if (flavorMap != null) this.flavorMap = flavorMap;

        DragSourceContext dsc = createDragSourceContext(trigger, dragCursor,
                                                        dragImage,
                                                        imageOffset,
                                                        transferable, dsl);

        if (dsc == null) {
            throw new InvalidDnDOperationException();
        }
        DragSourceContextAccessor acc = AWTAccessor.getDragSourceContextAccessor();
        acc.getPeer(dsc).startDrag(dsc, dsc.getCursor(), dragImage, imageOffset); // may throw
    } catch (RuntimeException e) {
        SunDragSourceContextPeer.setDragDropInProgress(false);
        throw e;
    }
}
Example 2
Source File: DragSource.java    From openjdk-jdk9 with GNU General Public License v2.0 3 votes vote down vote up 
/**
 * Start a drag, given the {@code DragGestureEvent}
 * that initiated the drag, the initial
 * {@code Cursor} to use,
 * the {@code Image} to drag,
 * the offset of the {@code Image} origin
 * from the hotspot of the {@code Cursor} at
 * the instant of the trigger,
 * the {@code Transferable} subject data
 * of the drag, the {@code DragSourceListener},
 * and the {@code FlavorMap}.
 *
 * @param trigger        the {@code DragGestureEvent} that initiated the drag
 * @param dragCursor     the initial {@code Cursor} for this drag operation
 *                       or {@code null} for the default cursor handling;
 *                       see <a href="DragSourceContext.html#defaultCursor">DragSourceContext</a>
 *                       for more details on the cursor handling mechanism during drag and drop
 * @param dragImage      the image to drag or {@code null}
 * @param imageOffset    the offset of the {@code Image} origin from the hotspot
 *                       of the {@code Cursor} at the instant of the trigger
 * @param transferable   the subject data of the drag
 * @param dsl            the {@code DragSourceListener}
 * @param flavorMap      the {@code FlavorMap} to use, or {@code null}
 *
 * @throws java.awt.dnd.InvalidDnDOperationException
 *    if the Drag and Drop
 *    system is unable to initiate a drag operation, or if the user
 *    attempts to start a drag while an existing drag operation
 *    is still executing
 */

public void startDrag(DragGestureEvent   trigger,
                      Cursor             dragCursor,
                      Image              dragImage,
                      Point              imageOffset,
                      Transferable       transferable,
                      DragSourceListener dsl,
                      FlavorMap          flavorMap) throws InvalidDnDOperationException {

    SunDragSourceContextPeer.setDragDropInProgress(true);

    try {
        if (flavorMap != null) this.flavorMap = flavorMap;

        DragSourceContext dsc = createDragSourceContext(trigger, dragCursor,
                                                        dragImage,
                                                        imageOffset,
                                                        transferable, dsl);

        if (dsc == null) {
            throw new InvalidDnDOperationException();
        }
        DragSourceContextAccessor acc = AWTAccessor.getDragSourceContextAccessor();
        acc.getPeer(dsc).startDrag(dsc, dsc.getCursor(), dragImage, imageOffset); // may throw
    } catch (RuntimeException e) {
        SunDragSourceContextPeer.setDragDropInProgress(false);
        throw e;
    }
}