Source for gnu.java.awt.peer.gtk.GtkContainerPeer

   1: /* GtkContainerPeer.java -- Implements ContainerPeer with GTK
   2:    Copyright (C) 1998, 1999 Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: 
  39: package gnu.java.awt.peer.gtk;
  40: 
  41: import java.awt.Color;
  42: import java.awt.Component;
  43: import java.awt.Container;
  44: import java.awt.Font;
  45: import java.awt.Graphics;
  46: import java.awt.Insets;
  47: import java.awt.Window;
  48: import java.awt.peer.ComponentPeer;
  49: import java.awt.peer.ContainerPeer;
  50: 
  51: public class GtkContainerPeer extends GtkComponentPeer
  52:   implements ContainerPeer
  53: {
  54:   Container c;
  55: 
  56:   public GtkContainerPeer(Container c)
  57:   {
  58:     super (c);
  59:     this.c = c;
  60:   }
  61: 
  62:   public void beginValidate ()
  63:   {
  64:   }
  65: 
  66:   public void endValidate ()
  67:   {
  68:     Component parent = awtComponent.getParent ();
  69: 
  70:     // Only set our parent on the GTK side if our parent on the AWT
  71:     // side is not showing.  Otherwise the gtk peer will be shown
  72:     // before we've had a chance to position and size it properly.
  73:     if (parent != null && parent.isShowing ())
  74:       {
  75:         Component[] components = ((Container) awtComponent).getComponents ();
  76:         int ncomponents = components.length;
  77: 
  78:         for (int i = 0; i < ncomponents; i++)
  79:           {
  80:             ComponentPeer peer = components[i].getPeer ();
  81: 
  82:             // Skip lightweight peers.
  83:             if (peer instanceof GtkComponentPeer)
  84:               ((GtkComponentPeer) peer).setParentAndBounds ();
  85:           }
  86: 
  87:         // GTK windows don't have parents.
  88:         if (!(awtComponent instanceof Window))
  89:           setParentAndBounds ();
  90:       }
  91:   }
  92: 
  93:   public Insets getInsets() 
  94:   {
  95:     return insets;
  96:   }
  97: 
  98:   public Insets insets() 
  99:   {
 100:     return getInsets ();
 101:   }
 102: 
 103:   public void setBounds (int x, int y, int width, int height)
 104:   {
 105:     super.setBounds (x, y, width, height);
 106:   }
 107: 
 108:   public void setFont(Font f)
 109:   {
 110:     super.setFont(f);
 111:     Component[] components = ((Container) awtComponent).getComponents();
 112:     for (int i = 0; i < components.length; i++)
 113:       {
 114:         if (components[i].isLightweight ())
 115:           components[i].setFont (f);
 116:         else
 117:           {
 118:             GtkComponentPeer peer = (GtkComponentPeer) components[i].getPeer();
 119:             if (peer != null && ! peer.awtComponent.isFontSet())
 120:               peer.setFont(f);
 121:           }
 122:       }
 123:   }
 124: 
 125:   public Graphics getGraphics ()
 126:   {
 127:     return super.getGraphics();
 128:   }
 129: 
 130:   public void beginLayout () { }
 131:   public void endLayout () { }
 132:   public boolean isPaintPending () { return false; }
 133: 
 134:   public void setBackground (Color c)
 135:   {
 136:     super.setBackground(c);
 137:   
 138:     Object components[] = ((Container) awtComponent).getComponents();
 139:     for (int i = 0; i < components.length; i++)
 140:       {
 141:         Component comp = (Component) components[i];
 142: 
 143:         // If the child's background has not been explicitly set yet,
 144:         // it should inherit this container's background. This makes the
 145:         // child component appear as if it has a transparent background.
 146:         // Note that we do not alter the background property of the child,
 147:         // but only repaint the child with the parent's background color.
 148:         if (!comp.isBackgroundSet() && comp.getPeer() != null)
 149:           comp.getPeer().setBackground(c);
 150:       }
 151:   }
 152: 
 153:   public boolean isRestackSupported()
 154:   {
 155:       // FIXME: implement
 156:     return false;
 157:   }
 158: 
 159:   public void cancelPendingPaint(int x, int y, int width, int height)
 160:   {
 161:     // FIXME: implement
 162:   }
 163: 
 164:   public void restack()
 165:   {
 166:       //FIXME: implement
 167:     
 168:   }
 169: }