| /* SwingContainerPeer.java -- A Swing based peer for AWT containers |
| Copyright (C) 2006 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package gnu.java.awt.peer.swing; |
| |
| import java.awt.Component; |
| import java.awt.Container; |
| import java.awt.Graphics; |
| import java.awt.Insets; |
| import java.awt.Shape; |
| import java.awt.event.MouseEvent; |
| import java.awt.peer.ComponentPeer; |
| import java.awt.peer.ContainerPeer; |
| |
| /** |
| * A peer for Container to be used with the Swing based AWT peers. |
| * |
| * @author Roman Kennke (kennke@aicas.com) |
| */ |
| public class SwingContainerPeer |
| extends SwingComponentPeer |
| implements ContainerPeer |
| { |
| |
| /** |
| * Creates a new SwingContainerPeer. |
| * |
| * @param awtCont |
| */ |
| public SwingContainerPeer(Component awtCont) |
| { |
| init(awtCont, null); |
| } |
| |
| /** |
| * Returns the insets of the container. |
| * |
| * This is implemented to return the insets of the Swing container. |
| * |
| * @return the insets of the container |
| */ |
| public Insets insets() |
| { |
| Insets retVal; |
| if (swingComponent != null) |
| retVal = swingComponent.getJComponent().getInsets(); |
| else |
| retVal = new Insets(0, 0, 0, 0); |
| return retVal; |
| } |
| |
| /** |
| * Returns the insets of the container. |
| * |
| * This is implemented to return the insets of the Swing container. |
| * |
| * @return the insets of the container |
| */ |
| public Insets getInsets() |
| { |
| Insets retVal; |
| if (swingComponent != null) |
| retVal = swingComponent.getJComponent().getInsets(); |
| else |
| retVal = new Insets(0, 0, 0, 0); |
| return retVal; |
| } |
| |
| /** |
| * Called before the validation of this containers begins. |
| */ |
| public void beginValidate() |
| { |
| // Nothing to do here. |
| } |
| |
| /** |
| * Called after the validation of this containers ended. |
| */ |
| public void endValidate() |
| { |
| // Nothing to do here. |
| } |
| |
| /** |
| * Called before the layout of this containers begins. |
| */ |
| public void beginLayout() |
| { |
| // Nothing to do here. |
| } |
| |
| /** |
| * Called after the layout of this containers ended. |
| */ |
| public void endLayout() |
| { |
| // Nothing to do here. |
| } |
| |
| /** |
| * Returns <code>false</code> unconditionally. This method is not used at |
| * the moment. |
| * |
| * @return <code>false</code> |
| */ |
| public boolean isPaintPending() |
| { |
| return false; |
| } |
| |
| /** |
| * Returns <code>false</code> unconditionally. This method is not used at |
| * the moment. |
| * |
| * @return <code>false</code> |
| */ |
| public boolean isRestackSupported() |
| { |
| return false; |
| } |
| |
| /** |
| * This method is not used at the moment. |
| */ |
| public void cancelPendingPaint(int x, int y, int width, int height) |
| { |
| // Nothing to do here. |
| } |
| |
| /** |
| * This method is not used at the moment. |
| */ |
| public void restack() |
| { |
| // Nothing to do here. |
| } |
| |
| /** |
| * Triggers painting of a component. This calls peerPaint on all the child |
| * components of this container. |
| * |
| * @param g the graphics context to paint to |
| */ |
| protected void peerPaint(Graphics g) |
| { |
| Container c = (Container) awtComponent; |
| Component[] children = c.getComponents(); |
| for (int i = children.length - 1; i >= 0; --i) |
| { |
| Component child = children[i]; |
| ComponentPeer peer = child.getPeer(); |
| boolean translated = false; |
| boolean clipped = false; |
| Shape oldClip = g.getClip(); |
| try |
| { |
| g.translate(child.getX(), child.getY()); |
| translated = true; |
| g.setClip(0, 0, child.getWidth(), child.getHeight()); |
| clipped = true; |
| if (peer instanceof SwingComponentPeer) |
| ((SwingComponentPeer) peer).peerPaint(g); |
| } |
| finally |
| { |
| if (translated) |
| g.translate(- child.getX(), - child.getY()); |
| if (clipped) |
| g.setClip(oldClip); |
| } |
| } |
| } |
| |
| /** |
| * Handles mouse events by dispatching it to the correct component. |
| * |
| * @param ev the mouse event |
| */ |
| protected void handleMouseEvent(MouseEvent ev) |
| { |
| Component comp = awtComponent.getComponentAt(ev.getPoint()); |
| if(comp == null) |
| comp = awtComponent; |
| if (comp != null) |
| { |
| ComponentPeer peer = comp.getPeer(); |
| if (awtComponent != comp && !comp.isLightweight() && peer instanceof SwingComponentPeer) |
| { |
| ev.translatePoint(comp.getX(), comp.getY()); |
| ev.setSource(comp); |
| ((SwingComponentPeer) peer).handleMouseEvent(ev); |
| } |
| } |
| } |
| |
| /** |
| * Handles mouse events by dispatching it to the correct component. |
| * |
| * @param ev the mouse event |
| */ |
| protected void handleMouseMotionEvent(MouseEvent ev) |
| { |
| Component comp = awtComponent.getComponentAt(ev.getPoint()); |
| if (comp != null) |
| { |
| ComponentPeer peer = comp.getPeer(); |
| if (awtComponent != comp && !comp.isLightweight() && peer instanceof SwingComponentPeer) |
| { |
| ev.translatePoint(comp.getX(), comp.getY()); |
| ((SwingComponentPeer) peer).handleMouseMotionEvent(ev); |
| } |
| } |
| } |
| } |