101 lines
2.9 KiB
Java
101 lines
2.9 KiB
Java
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/* GtkCanvasPeer.java
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Copyright (C) 1998, 1999 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.java.awt.peer.gtk;
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import java.awt.AWTEvent;
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import java.awt.Canvas;
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import java.awt.Dimension;
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import java.awt.Graphics;
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import java.awt.event.PaintEvent;
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import java.awt.peer.CanvasPeer;
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public class GtkCanvasPeer extends GtkComponentPeer implements CanvasPeer
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{
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native void create ();
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public GtkCanvasPeer (Canvas c)
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{
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super (c);
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}
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public Graphics getGraphics ()
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{
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if (GtkToolkit.useGraphics2D ())
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return new GdkGraphics2D (this);
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else
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return new GdkGraphics (this);
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}
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public void handleEvent (AWTEvent event)
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{
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int id = event.getID();
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switch (id)
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{
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case PaintEvent.PAINT:
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case PaintEvent.UPDATE:
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{
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try
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{
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Graphics g = getGraphics ();
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g.setClip (((PaintEvent)event).getUpdateRect());
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if (id == PaintEvent.PAINT)
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awtComponent.paint (g);
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else
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awtComponent.update (g);
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g.dispose ();
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}
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catch (InternalError e)
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{
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System.err.println (e);
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}
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}
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break;
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}
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}
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/* Preferred size for a drawing widget is always what the user requested */
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public Dimension getPreferredSize ()
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{
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return awtComponent.getSize ();
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}
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}
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