libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkPanelPeer.c

   1 /* gtkpanelpeer.c -- Native implementation of GtkPanelPeer
   2    Copyright (C) 1998, 1999, 2002 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., 59 Temple Place, Suite 330, Boston, MA
  19 02111-1307 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 #include "gtkpeer.h"
  40 #include "gnu_java_awt_peer_gtk_GtkPanelPeer.h"
  41
  42 JNIEXPORT void JNICALL
  43 Java_gnu_java_awt_peer_gtk_GtkPanelPeer_create
  44   (JNIEnv *env, jobject obj)
  45 {
  46   gpointer widget;
  47
  48   gdk_threads_enter ();
  49   widget = gtk_layout_new (NULL, NULL);
  50   gdk_threads_leave ();
  51
  52   NSA_SET_PTR (env, obj, widget);
  53 }
  54
  55 typedef struct _GtkLayoutChild   GtkLayoutChild;
  56
  57 struct _GtkLayoutChild {
  58   GtkWidget *widget;
  59   gint x;
  60   gint y;
  61 };
  62
  63 static
  64 void sr (GtkWidget *widget, GtkRequisition *requisition, gpointer user_data)
  65 {
  66   GtkLayout *layout;
  67   GtkLayoutChild *child;
  68   GList *children;
  69
  70   layout = GTK_LAYOUT (widget);
  71   requisition->width = GTK_WIDGET (widget)->allocation.width;
  72   requisition->height = GTK_WIDGET (widget)->allocation.height;
  73
  74   children = layout->children;
  75   while (children)
  76     {
  77       child = children->data;
  78       children = children->next;
  79
  80       if (GTK_WIDGET_VISIBLE (child->widget))
  81         {
  82           requisition->height = MAX (requisition->height,
  83                                      child->y +
  84                                      child->widget->allocation.height);
  85           requisition->width = MAX (requisition->width,
  86                                     child->x +
  87                                     child->widget->allocation.width);
  88         }
  89     }
  90
  91   requisition->height += GTK_CONTAINER (layout)->border_width * 2;
  92   requisition->width += GTK_CONTAINER (layout)->border_width * 2;
  93 }
  94
  95 JNIEXPORT void JNICALL
  96 Java_gnu_java_awt_peer_gtk_GtkPanelPeer_connectHooks
  97   (JNIEnv *env, jobject obj)
  98 {
  99   void *ptr;
 100
 101   ptr = NSA_GET_PTR (env, obj);
 102
 103   gdk_threads_enter ();
 104   gtk_widget_realize (GTK_WIDGET (ptr));
 105   connect_awt_hook (env, obj, 1, GTK_LAYOUT (ptr)->bin_window);
 106
 107 /*    gtk_signal_connect (GTK_OBJECT (ptr), "size_request", GTK_SIGNAL_FUNC (sr), */
 108 /*                    NULL); */
 109   gdk_threads_leave ();
 110 }
 111
 112 /*
 113  * Make a new panel.
 114  */
 115 JNIEXPORT void JNICALL
 116 Java_gnu_java_awt_peer_gtk_GtkPanelPeer_gtkPanelNew
 117     (JNIEnv *env, jobject obj, jobject parent_obj)
 118 {
 119   GtkWidget *layout;
 120   void *parent;
 121
 122   parent = NSA_GET_PTR (env, parent_obj);
 123
 124   gdk_threads_enter ();
 125   layout = gtk_layout_new (NULL, NULL);
 126
 127   set_parent (layout, GTK_CONTAINER (parent));
 128
 129   gtk_widget_realize (layout);
 130   connect_awt_hook (env, obj, 1, GTK_LAYOUT (layout)->bin_window);
 131   set_visible (layout, 1);
 132
 133   NSA_SET_PTR (env, obj, layout);
 134   gdk_threads_leave ();
 135 }
 136
 137