libjava/classpath/gnu/java/awt/peer/gtk/GtkFramePeer.java

   1 /* GtkFramePeer.java -- Implements FramePeer with GTK
   2    Copyright (C) 1999, 2002, 2004, 2006 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.Frame;
  42 import java.awt.Graphics;
  43 import java.awt.Image;
  44 import java.awt.MenuBar;
  45 import java.awt.Rectangle;
  46 import java.awt.event.PaintEvent;
  47 import java.awt.peer.FramePeer;
  48 import java.awt.peer.MenuBarPeer;
  49
  50 public class GtkFramePeer extends GtkWindowPeer
  51     implements FramePeer
  52 {
  53   private int menuBarHeight;
  54   private MenuBarPeer menuBar;
  55   native int getMenuBarHeight (MenuBarPeer bar);
  56   native void setMenuBarWidthUnlocked (MenuBarPeer bar, int width);
  57   native void setMenuBarWidth (MenuBarPeer bar, int width);
  58   native void setMenuBarPeer (MenuBarPeer bar);
  59   native void removeMenuBarPeer ();
  60   native void gtkFixedSetVisible (boolean visible);
  61
  62   int getMenuBarHeight ()
  63   {
  64     return menuBar == null ? 0 : getMenuBarHeight (menuBar);
  65   }
  66
  67   public void setMenuBar (MenuBar bar)
  68   {
  69     if (bar == null && menuBar != null)
  70       {
  71         // We're removing the menubar.
  72         gtkFixedSetVisible (false);
  73         menuBar = null;
  74         removeMenuBarPeer ();
  75         insets.top -= menuBarHeight;
  76         menuBarHeight = 0;
  77         // if component has already been validated, we need to revalidate.
  78         // otherwise, it will be validated when it is shown.
  79         if (awtComponent.isValid())
  80           awtComponent.validate ();
  81         gtkFixedSetVisible (true);
  82       }
  83     else if (bar != null && menuBar == null)
  84       {
  85         // We're adding a menubar where there was no menubar before.
  86         gtkFixedSetVisible (false);
  87         menuBar = (MenuBarPeer) ((MenuBar) bar).getPeer();
  88         setMenuBarPeer (menuBar);
  89         int menuBarWidth =
  90           awtComponent.getWidth () - insets.left - insets.right;
  91         if (menuBarWidth > 0)
  92           setMenuBarWidth (menuBar, menuBarWidth);
  93         menuBarHeight = getMenuBarHeight ();
  94         insets.top += menuBarHeight;
  95         // if component has already been validated, we need to revalidate.
  96         // otherwise, it will be validated when it is shown.
  97         if (awtComponent.isValid())
  98           awtComponent.validate ();
  99         gtkFixedSetVisible (true);
 100       }
 101     else if (bar != null && menuBar != null)
 102       {
 103         // We're swapping the menubar.
 104         gtkFixedSetVisible (false);
 105         removeMenuBarPeer();
 106         int oldHeight = menuBarHeight;
 107         int menuBarWidth =
 108           awtComponent.getWidth () - insets.left - insets.right;
 109         menuBar = (MenuBarPeer) ((MenuBar) bar).getPeer ();
 110         setMenuBarPeer (menuBar);
 111         if (menuBarWidth > 0)
 112           setMenuBarWidth (menuBar, menuBarWidth);
 113         menuBarHeight = getMenuBarHeight ();
 114         if (oldHeight != menuBarHeight)
 115           {
 116             insets.top += (menuBarHeight - oldHeight);
 117             awtComponent.validate ();
 118           }
 119         gtkFixedSetVisible (true);
 120       }
 121   }
 122
 123   public void setBounds (int x, int y, int width, int height)
 124   {
 125     int menuBarWidth = width - insets.left - insets.right;
 126     if (menuBar != null && menuBarWidth > 0)
 127       setMenuBarWidth (menuBar, menuBarWidth);
 128
 129     super.setBounds(x, y, width, height + menuBarHeight);
 130   }
 131
 132   public void setResizable (boolean resizable)
 133   {
 134     // Call setSize; otherwise when resizable is changed from true to
 135     // false the frame will shrink to the dimensions it had before it
 136     // was resizable.
 137     setSize (awtComponent.getWidth() - insets.left - insets.right,
 138              awtComponent.getHeight() - insets.top - insets.bottom
 139              + menuBarHeight);
 140     gtkWindowSetResizable (resizable);
 141   }
 142
 143   protected void postInsetsChangedEvent (int top, int left,
 144                                          int bottom, int right)
 145   {
 146     insets.top = top + menuBarHeight;
 147     insets.left = left;
 148     insets.bottom = bottom;
 149     insets.right = right;
 150   }
 151
 152   public GtkFramePeer (Frame frame)
 153   {
 154     super (frame);
 155   }
 156
 157   void create ()
 158   {
 159     // Create a normal decorated window.
 160     create (GDK_WINDOW_TYPE_HINT_NORMAL,
 161             !((Frame) awtComponent).isUndecorated ());
 162
 163     Frame frame = (Frame) awtComponent;
 164
 165     setMenuBar (frame.getMenuBar ());
 166
 167     setTitle (frame.getTitle ());
 168     gtkWindowSetResizable (frame.isResizable ());
 169     setIconImage(frame.getIconImage());
 170   }
 171
 172   native void nativeSetIconImage (GtkImage image);
 173
 174   public void setIconImage (Image image)
 175   {
 176       if (image != null)
 177         {
 178           if (image instanceof GtkImage)
 179             nativeSetIconImage((GtkImage) image);
 180           else
 181             nativeSetIconImage(new GtkImage(image.getSource()));
 182         }
 183   }
 184
 185   protected void postConfigureEvent (int x, int y, int width, int height)
 186   {
 187     if (menuBar != null && width > 0)
 188       setMenuBarWidthUnlocked (menuBar, width);
 189
 190     // Since insets.top already includes the MenuBar's height, we need
 191     // to subtract the MenuBar's height from the top inset.
 192     int frame_height = height - menuBarHeight;
 193
 194     // Likewise, since insets.top includes the MenuBar height, we need
 195     // to add back the MenuBar height to the frame's y position.  If
 196     // no MenuBar exists in this frame, the MenuBar height will be 0.
 197     int frame_y = y + menuBarHeight;
 198
 199     super.postConfigureEvent(x, frame_y, width, frame_height);
 200   }
 201
 202   public int getState ()
 203   {
 204     return 0;
 205   }
 206
 207   public void setState (int state)
 208   {
 209
 210   }
 211
 212   public void setMaximizedBounds (Rectangle r)
 213   {
 214
 215   }
 216   public void setBoundsPrivate(int x, int y, int width, int height)
 217   {
 218     // TODO Auto-generated method stub
 219
 220   }
 221   public void updateAlwaysOnTop()
 222   {
 223     // TODO Auto-generated method stub
 224
 225   }
 226   public boolean requestWindowFocus()
 227   {
 228     // TODO Auto-generated method stub
 229     return false;
 230   }
 231 }
 232
 233