libjava/classpath/native/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkMenuItemPeer.c

   1 /* gtkmenuitempeer.c -- Native implementation of GtkMenuItemPeer
   2    Copyright (C) 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 #include "gtkpeer.h"
  40 #include "gnu_java_awt_peer_gtk_GtkMenuItemPeer.h"
  41 #include "gnu_java_awt_peer_gtk_GtkComponentPeer.h"
  42
  43 static jmethodID postMenuActionEventID;
  44
  45 void
  46 cp_gtk_menuitem_init_jni (void)
  47 {
  48   jclass gtkmenuitempeer;
  49
  50   gtkmenuitempeer = (*cp_gtk_gdk_env())->FindClass (cp_gtk_gdk_env(),
  51                                       "gnu/java/awt/peer/gtk/GtkMenuItemPeer");
  52
  53   postMenuActionEventID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(),
  54                                                      gtkmenuitempeer,
  55                                                      "postMenuActionEvent",
  56                                                      "()V");
  57 }
  58
  59 static void item_activate_cb (GtkMenuItem *item __attribute__((unused)),
  60                               jobject peer_obj);
  61
  62 JNIEXPORT void JNICALL
  63 Java_gnu_java_awt_peer_gtk_GtkMenuItemPeer_create
  64   (JNIEnv *env, jobject obj, jstring label)
  65 {
  66   GtkWidget *widget;
  67   const char *str;
  68
  69   gdk_threads_enter ();
  70
  71   gtkpeer_set_global_ref (env, obj);
  72
  73   str = (*env)->GetStringUTFChars (env, label, NULL);
  74
  75   /* "-" signals that we need a separator. */
  76   if (strcmp (str, "-") == 0)
  77     widget = gtk_menu_item_new ();
  78   else
  79     widget = gtk_menu_item_new_with_label (str);
  80
  81   gtk_widget_show (widget);
  82
  83   (*env)->ReleaseStringUTFChars (env, label, str);
  84
  85   gtkpeer_set_widget (env, obj, widget);
  86
  87   gdk_threads_leave ();
  88 }
  89
  90 JNIEXPORT void JNICALL
  91 Java_gnu_java_awt_peer_gtk_GtkMenuItemPeer_connectSignals
  92   (JNIEnv *env, jobject obj)
  93 {
  94   void *ptr;
  95   jobject gref;
  96
  97   gdk_threads_enter ();
  98
  99   ptr = gtkpeer_get_widget (env, obj);
 100   gref = gtkpeer_get_global_ref (env, obj);
 101
 102   g_signal_connect (G_OBJECT (ptr), "activate",
 103                     G_CALLBACK (item_activate_cb), gref);
 104
 105   gdk_threads_leave ();
 106 }
 107
 108 JNIEXPORT void JNICALL
 109 Java_gnu_java_awt_peer_gtk_GtkMenuItemPeer_gtkWidgetModifyFont
 110   (JNIEnv *env, jobject obj, jstring name, jint style, jint size)
 111 {
 112   const char *font_name;
 113   void *ptr;
 114   GtkWidget *label;
 115   PangoFontDescription *font_desc;
 116
 117   gdk_threads_enter();
 118
 119   ptr = gtkpeer_get_widget (env, obj);
 120
 121   font_name = (*env)->GetStringUTFChars (env, name, NULL);
 122
 123   label = gtk_bin_get_child (GTK_BIN (ptr));
 124
 125   if (label)
 126     {
 127       font_desc = pango_font_description_from_string (font_name);
 128       pango_font_description_set_size (font_desc,
 129                                    size * cp_gtk_dpi_conversion_factor);
 130
 131       if (style & AWT_STYLE_BOLD)
 132         pango_font_description_set_weight (font_desc, PANGO_WEIGHT_BOLD);
 133
 134       if (style & AWT_STYLE_ITALIC)
 135         pango_font_description_set_style (font_desc, PANGO_STYLE_OBLIQUE);
 136
 137       gtk_widget_modify_font (GTK_WIDGET(label), font_desc);
 138
 139       pango_font_description_free (font_desc);
 140     }
 141
 142   (*env)->ReleaseStringUTFChars (env, name, font_name);
 143
 144   gdk_threads_leave();
 145 }
 146
 147 JNIEXPORT void JNICALL
 148 Java_gnu_java_awt_peer_gtk_GtkMenuItemPeer_setEnabled
 149   (JNIEnv *env, jobject obj, jboolean enabled)
 150 {
 151   void *ptr;
 152
 153   gdk_threads_enter ();
 154
 155   ptr = gtkpeer_get_widget (env, obj);
 156
 157   gtk_widget_set_sensitive (GTK_WIDGET (ptr), enabled);
 158
 159   gdk_threads_leave ();
 160 }
 161
 162 JNIEXPORT void JNICALL
 163 Java_gnu_java_awt_peer_gtk_GtkMenuItemPeer_setLabel
 164   (JNIEnv *env, jobject obj, jstring label)
 165 {
 166   void *ptr;
 167   const char *str;
 168   GtkAccelLabel *accel_label;
 169
 170   gdk_threads_enter ();
 171
 172   ptr = gtkpeer_get_widget (env, obj);
 173
 174   str = (*env)->GetStringUTFChars (env, label, NULL);
 175
 176   accel_label = GTK_ACCEL_LABEL (GTK_BIN (ptr)->child);
 177
 178   gtk_label_set_text (GTK_LABEL (accel_label), str);
 179   gtk_accel_label_refetch (accel_label);
 180
 181   (*env)->ReleaseStringUTFChars (env, label, str);
 182
 183   gdk_threads_leave ();
 184 }
 185
 186 static void
 187 item_activate_cb (GtkMenuItem *item __attribute__((unused)), jobject peer_obj)
 188 {
 189   (*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), peer_obj,
 190                                        postMenuActionEventID);
 191 }