mirror of git://gcc.gnu.org/git/gcc.git
304 lines
9.5 KiB
Java
304 lines
9.5 KiB
Java
/* XWindowPeer.java -- Window peer for X
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Copyright (C) 2006 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.x;
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import java.awt.Component;
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import java.awt.Dialog;
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import java.awt.EventQueue;
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import java.awt.Font;
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import java.awt.FontMetrics;
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import java.awt.Frame;
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import java.awt.Graphics;
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import java.awt.GraphicsConfiguration;
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import java.awt.GraphicsDevice;
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import java.awt.GraphicsEnvironment;
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import java.awt.Image;
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import java.awt.Insets;
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import java.awt.Point;
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import java.awt.Rectangle;
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import java.awt.event.PaintEvent;
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import java.awt.event.WindowEvent;
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import java.awt.image.VolatileImage;
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import gnu.x11.Atom;
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import gnu.x11.Window;
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import gnu.x11.event.Event;
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import gnu.java.awt.font.OpenTypeFontPeer;
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import gnu.java.awt.peer.ClasspathFontPeer;
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import gnu.java.awt.peer.swing.SwingWindowPeer;
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public class XWindowPeer
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extends SwingWindowPeer
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{
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private static int standardSelect = Event.BUTTON_PRESS_MASK
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| Event.BUTTON_RELEASE_MASK
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| Event.POINTER_MOTION_MASK
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// | Event.RESIZE_REDIRECT_MASK //
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| Event.EXPOSURE_MASK
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| Event.PROPERTY_CHANGE_MASK
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//| Event.STRUCTURE_NOTIFY_MASK
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//| Event.SUBSTRUCTURE_NOTIFY_MASK
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| Event.KEY_PRESS_MASK
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| Event.KEY_RELEASE_MASK
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//| Event.VISIBILITY_CHANGE_MASK //
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;
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/**
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* The X window.
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*/
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protected Window xwindow;
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/**
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* The frame insets. These get updated in {@link #show()}.
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*/
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private Insets insets;
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XWindowPeer(java.awt.Window window)
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{
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super(window);
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XGraphicsDevice dev = XToolkit.getDefaultDevice();
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// TODO: Maybe initialize lazily in show().
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Window.Attributes atts = new Window.Attributes();
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// FIXME: Howto generate a Window without decorations?
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int x = Math.max(window.getX(), 0);
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int y = Math.max(window.getY(), 0);
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int w = Math.max(window.getWidth(), 1);
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int h = Math.max(window.getHeight(), 1);
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xwindow = new Window(dev.getDisplay().default_root, x, y, w, h, 0, atts);
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xwindow.select_input(standardSelect);
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dev.getEventPump().registerWindow(xwindow, window);
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xwindow.set_wm_delete_window();
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boolean undecorated;
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if (awtComponent instanceof Frame)
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{
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Frame f = (Frame) awtComponent;
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undecorated = f.isUndecorated();
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}
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else if (awtComponent instanceof Dialog)
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{
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Dialog d = (Dialog) awtComponent;
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undecorated = d.isUndecorated();
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}
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else
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{
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undecorated = true;
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}
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if (undecorated)
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{
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// First try the Motif implementation of undecorated frames. This
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// is semantically closest and supported by all major window
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// managers.
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// TODO: At the time of writing this, there's no freedesktop.org
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// standard extension that matches the required semantic. Maybe
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// undecorated frames are added in the future, if so, then use these.
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Atom at = Atom.intern(dev.getDisplay(), "_MOTIF_WM_HINTS");
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if (at != null)
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{
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xwindow.change_property(Window.REPLACE, at, at, 32,
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new int[]{1 << 1, 0, 0, 0, 0}, 0, 5);
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}
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}
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insets = new Insets(0, 0, 0, 0);
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}
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public void toBack()
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{
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// TODO Auto-generated method stub
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}
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public void toFront()
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{
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// TODO Auto-generated method stub
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}
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public void updateAlwaysOnTop()
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{
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// TODO Auto-generated method stub
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}
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public boolean requestWindowFocus()
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{
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// TODO Auto-generated method stub
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return false;
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}
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public Point getLocationOnScreen()
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{
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return new Point(xwindow.x, xwindow.y);
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}
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/**
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* Returns a XGraphics suitable for drawing on this frame.
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*
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* @return a XGraphics suitable for drawing on this frame
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*/
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public Graphics getGraphics()
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{
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XGraphics2D xg2d = new XGraphics2D(xwindow);
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xg2d.setColor(awtComponent.getForeground());
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xg2d.setBackground(awtComponent.getBackground());
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xg2d.setFont(awtComponent.getFont());
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return xg2d;
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}
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public Image createImage(int w, int h)
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{
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// FIXME: Should return a buffered image.
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return createVolatileImage(w, h);
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}
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@Override
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public VolatileImage createVolatileImage(int width, int height)
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{
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GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
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GraphicsDevice gd = ge.getDefaultScreenDevice();
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GraphicsConfiguration gc = gd.getDefaultConfiguration();
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return gc.createCompatibleVolatileImage(width, height);
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}
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/**
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* Makes the component visible. This is called by {@link Component#show()}.
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*
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* This is implemented to call setVisible(true) on the Swing component.
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*/
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public void show()
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{
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// Prevent ResizeRedirect events.
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//xwindow.select_input(Event.NO_EVENT_MASK);
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//xwindow.select_input(noResizeRedirectSelect);
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XGraphicsDevice dev = XToolkit.getDefaultDevice();
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xwindow.map();
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EventQueue eq = XToolkit.getDefaultToolkit().getSystemEventQueue();
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java.awt.Window w = (java.awt.Window) super.awtComponent;
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eq.postEvent(new WindowEvent(w, WindowEvent.WINDOW_OPENED));
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eq.postEvent(new PaintEvent(w, PaintEvent.PAINT,
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new Rectangle(0, 0, w.getWidth(),
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w.getHeight())));
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Graphics g = getGraphics();
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g.clearRect(0, 0, awtComponent.getWidth(), awtComponent.getHeight());
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g.dispose();
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// // Reset input selection.
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// atts.set_override_redirect(false);
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// xwindow.change_attributes(atts);
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// Determine the frame insets.
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Atom atom = (Atom) Atom.intern(dev.getDisplay(), "_NET_FRAME_EXTENTS");
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Window.Property p = xwindow.get_property(false, atom, Atom.CARDINAL, 0,
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Window.MAX_WM_LENGTH);
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if (p.format() != 0)
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{
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insets = new Insets(p.value(0), p.value(1), p.value(2), p.value(3));
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Window.Changes ch = new Window.Changes();
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ch.width(awtComponent.getWidth() - insets.left - insets.top);
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ch.height(awtComponent.getHeight() - insets.top - insets.bottom);
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xwindow.configure(ch);
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}
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}
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/**
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* Makes the component invisible. This is called from
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* {@link Component#hide()}.
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*
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* This is implemented to call setVisible(false) on the Swing component.
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*/
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public void hide()
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{
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xwindow.unmap();
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}
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/**
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* Notifies the peer that the bounds of this component have changed. This
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* is called by {@link Component#reshape(int, int, int, int)}.
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*
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* This is implemented to call setBounds() on the Swing component.
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*
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* @param x the X coordinate of the upper left corner of the component
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* @param y the Y coordinate of the upper left corner of the component
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* @param width the width of the component
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* @param height the height of the component
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*/
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public void reshape(int x, int y, int width, int height)
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{
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Insets i = insets;
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xwindow.move_resize(x - i.left, y - i.right, width - i.left - i.right,
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height - i.top - i.bottom);
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}
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public Insets insets()
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{
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return (Insets) insets.clone();
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}
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/**
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* Returns the font metrics for the specified font.
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*
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* @return the font metrics for the specified font
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*/
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public FontMetrics getFontMetrics(Font font)
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{
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ClasspathFontPeer fontPeer = (ClasspathFontPeer) font.getPeer();
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return fontPeer.getFontMetrics(font);
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}
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/**
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* Unregisters the window in the event pump when it is closed.
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*/
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protected void finalize()
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{
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XGraphicsDevice dev = XToolkit.getDefaultDevice();
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dev.getEventPump().unregisterWindow(xwindow);
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}
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public Window getXwindow()
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{
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return xwindow;
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}
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}
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