X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=libjava%2Fclasspath%2Fjava%2Fawt%2Fdnd%2FDragSourceContext.java;fp=libjava%2Fclasspath%2Fjava%2Fawt%2Fdnd%2FDragSourceContext.java;h=1fee5c0c3043faacbc821f83010fad1f9bb73b09;hb=ffde862e033a0825e1e9972a89c0f1f80b261a8e;hp=88607b090eab634e85f7a7c50ecd52c089ec9793;hpb=b415ff10527e977c3758234fd930e2c027bfa17d;p=pf3gnuchains%2Fgcc-fork.git diff --git a/libjava/classpath/java/awt/dnd/DragSourceContext.java b/libjava/classpath/java/awt/dnd/DragSourceContext.java index 88607b090ea..1fee5c0c304 100644 --- a/libjava/classpath/java/awt/dnd/DragSourceContext.java +++ b/libjava/classpath/java/awt/dnd/DragSourceContext.java @@ -70,8 +70,8 @@ public class DragSourceContext private Transferable transferable; private DragGestureEvent trigger; private DragSourceListener dragSourceListener; - private boolean useCustomCursor; // FIXME: currently unused but needed for serialization. - private int sourceActions; // FIXME: currently unused but needed for serialization. + private boolean useCustomCursor; + private int sourceActions; private Image image; private Point offset; @@ -82,16 +82,17 @@ public class DragSourceContext * are null, the drag action for the trigger event is DnDConstants.ACTION_NONE * or if the source actions for the DragGestureRecognizer associated with the * trigger event are equal to DnDConstants.ACTION_NONE. - * @exception NullPointerException If peer or trigger is null. + * @exception NullPointerException If peer, trans or trigger is null or if the + * image is not null but the offset is. */ public DragSourceContext (DragSourceContextPeer peer, DragGestureEvent trigger, Cursor cursor, Image image, Point offset, Transferable trans, DragSourceListener dsl) - throws NotImplementedException - { + { if (peer == null - || trigger == null) + || trigger == null || trans == null + || (image != null && offset == null)) throw new NullPointerException (); if (trigger.getComponent () == null @@ -108,37 +109,77 @@ public class DragSourceContext this.offset = offset; this.transferable = trans; this.dragSourceListener = dsl; + this.sourceActions = trigger.getSourceAsDragGestureRecognizer().getSourceActions(); - throw new Error ("not implemented"); + setCursor(cursor); + updateCurrentCursor(trigger.getDragAction(), sourceActions, DEFAULT); } + /** + * Returns the DragSource object associated with the + * DragGestureEvent. + * + * @return the DragSource associated with the trigger. + */ public DragSource getDragSource() { return trigger.getDragSource (); } + /** + * Returns the component associated with this. + * + * @return the component associated with the trigger. + */ public Component getComponent() { return trigger.getComponent (); } + /** + * Gets the trigger associated with this. + * + * @return the trigger. + */ public DragGestureEvent getTrigger() { return trigger; } + /** + * Returns the source actions for the DragGestureRecognizer. + * + * @return the source actions for DragGestureRecognizer. + */ public int getSourceActions() { - return trigger.getSourceAsDragGestureRecognizer ().getSourceActions (); + if (sourceActions == 0) + sourceActions = trigger.getSourceAsDragGestureRecognizer().getSourceActions(); + return sourceActions; } - public void setCursor (Cursor cursor) - throws NotImplementedException + /** + * Sets the cursor for this drag operation to the specified cursor. + * + * @param cursor c - the Cursor to use, or null to use the default drag + * cursor. + */ + public void setCursor(Cursor cursor) { + if (cursor == null) + useCustomCursor = false; + else + useCustomCursor = true; this.cursor = cursor; - // FIXME: Check if we need to do more here + peer.setCursor(cursor); } + /** + * Returns the current cursor or null if the default + * drag cursor is used. + * + * @return the current cursor or null. + */ public Cursor getCursor() { return cursor; @@ -165,48 +206,160 @@ public class DragSourceContext dragSourceListener = null; } + /** + * This function tells the peer that the DataFlavors have been modified. + */ public void transferablesFlavorsChanged() - throws NotImplementedException { + peer.transferablesFlavorsChanged(); } + /** + * Calls dragEnter on the listeners registered with this + * and with the DragSource. + * + * @param e - the DragSourceDragEvent + */ public void dragEnter(DragSourceDragEvent e) - throws NotImplementedException { + if (dragSourceListener != null) + dragSourceListener.dragEnter(e); + + DragSource ds = getDragSource(); + DragSourceListener[] dsl = ds.getDragSourceListeners(); + for (int i = 0; i < dsl.length; i++) + dsl[i].dragEnter(e); + + updateCurrentCursor(e.getDropAction(), e.getTargetActions(), ENTER); } + /** + * Calls dragOver on the listeners registered with this + * and with the DragSource. + * + * @param e - the DragSourceDragEvent + */ public void dragOver(DragSourceDragEvent e) - throws NotImplementedException { + if (dragSourceListener != null) + dragSourceListener.dragOver(e); + + DragSource ds = getDragSource(); + DragSourceListener[] dsl = ds.getDragSourceListeners(); + for (int i = 0; i < dsl.length; i++) + dsl[i].dragOver(e); + + updateCurrentCursor(e.getDropAction(), e.getTargetActions(), OVER); } - + + /** + * Calls dragExit on the listeners registered with this + * and with the DragSource. + * + * @param e - the DragSourceEvent + */ public void dragExit(DragSourceEvent e) - throws NotImplementedException { + if (dragSourceListener != null) + dragSourceListener.dragExit(e); + + DragSource ds = getDragSource(); + DragSourceListener[] dsl = ds.getDragSourceListeners(); + for (int i = 0; i < dsl.length; i++) + dsl[i].dragExit(e); + + updateCurrentCursor(0, 0, DEFAULT); } + /** + * Calls dropActionChanged on the listeners registered with this + * and with the DragSource. + * + * @param e - the DragSourceDragEvent + */ public void dropActionChanged(DragSourceDragEvent e) - throws NotImplementedException { + if (dragSourceListener != null) + dragSourceListener.dropActionChanged(e); + + DragSource ds = getDragSource(); + DragSourceListener[] dsl = ds.getDragSourceListeners(); + for (int i = 0; i < dsl.length; i++) + dsl[i].dropActionChanged(e); + + updateCurrentCursor(e.getDropAction(), e.getTargetActions(), CHANGED); } + /** + * Calls dragDropEnd on the listeners registered with this + * and with the DragSource. + * + * @param e - the DragSourceDropEvent + */ public void dragDropEnd(DragSourceDropEvent e) - throws NotImplementedException { + if (dragSourceListener != null) + dragSourceListener.dragDropEnd(e); + + DragSource ds = getDragSource(); + DragSourceListener[] dsl = ds.getDragSourceListeners(); + for (int i = 0; i < dsl.length; i++) + dsl[i].dragDropEnd(e); } + /** + * Calls dragMouseMoved on the listeners registered with the DragSource. + * + * @param e - the DragSourceDragEvent + */ public void dragMouseMoved(DragSourceDragEvent e) - throws NotImplementedException { + DragSource ds = getDragSource(); + DragSourceMotionListener[] dsml = ds.getDragSourceMotionListeners(); + for (int i = 0; i < dsml.length; i++) + dsml[i].dragMouseMoved(e); } + /** + * Returns the Transferable set with this object. + * + * @return the transferable. + */ public Transferable getTransferable() { return transferable; } + /** + * This function sets the drag cursor for the specified operation, actions and + * status if the default drag cursor is active. Otherwise, the cursor is not + * updated in any way. + * + * @param dropOp - the current operation. + * @param targetAct - the supported actions. + * @param status - the status of the cursor (constant). + */ protected void updateCurrentCursor(int dropOp, int targetAct, int status) throws NotImplementedException { + // FIXME: Not implemented fully + if (!useCustomCursor) + { + Cursor cursor = null; + switch (status) + { + case ENTER: + break; + case CHANGED: + break; + case OVER: + break; + default: + break; + } + + this.cursor = cursor; + peer.setCursor(cursor); + } } } // class DragSourceContext