plugins/class-inheritance/plugin.c

   1 /* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
   2 /*
   3  * plugin.c
   4  * Copyright (C) Massimo Cora' 2005 <maxcvs@email.it>
   5  *
   6  * plugin.c is free software.
   7  *
   8  * You may redistribute it and/or modify it under the terms of the
   9  * GNU General Public License, as published by the Free Software
  10  * Foundation; either version 2, or (at your option) any later version.
  11  *
  12  * plugin.c is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  15  * See the GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with plugin.c.  See the file "COPYING".  If not,
  19  * write to:  The Free Software Foundation, Inc.,
  20  *            59 Temple Place - Suite 330,
  21  *            Boston,  MA  02111-1307, USA.
  22  */
  23
  24 #include <config.h>
  25 #include <libanjuta/anjuta-shell.h>
  26 #include <libgnomevfs/gnome-vfs-utils.h>
  27 #include <libgnome/gnome-i18n.h>
  28 #include <libanjuta/interfaces/ianjuta-document-manager.h>
  29 #include <libanjuta/interfaces/ianjuta-project-manager.h>
  30 #include <libanjuta/anjuta-debug.h>
  31
  32 #include "plugin.h"
  33 #include "class-inherit.h"
  34
  35 #define ICON_FILE "class-inheritance.png"
  36
  37 static gpointer parent_class;
  38
  39 static void
  40 project_root_added (AnjutaPlugin *plugin, const gchar *name,
  41                                         const GValue *value, gpointer user_data)
  42 {
  43         AnjutaClassInheritance *ci_plugin;
  44         const gchar *root_uri;
  45
  46         ci_plugin = ANJUTA_PLUGIN_CLASS_INHERITANCE (plugin);
  47         root_uri = g_value_get_string (value);
  48
  49         if (root_uri)
  50         {
  51                 gchar *root_dir = gnome_vfs_get_local_path_from_uri (root_uri);
  52                 if (root_dir)
  53                 {
  54                         ci_plugin->top_dir = g_strdup(root_dir);
  55                 }
  56                 else
  57                         ci_plugin->top_dir = NULL;
  58                 g_free (root_dir);
  59         }
  60         else
  61                 ci_plugin->top_dir = NULL;
  62
  63         /* let's update the graph */
  64         class_inheritance_update_graph (ci_plugin);
  65 }
  66
  67 static void
  68 project_root_removed (AnjutaPlugin *plugin, const gchar *name,
  69                                           gpointer user_data)
  70 {
  71         AnjutaClassInheritance *ci_plugin;
  72         ci_plugin = ANJUTA_PLUGIN_CLASS_INHERITANCE (plugin);
  73
  74         /* clean up the canvas */
  75         class_inheritance_clean_canvas (ci_plugin);
  76
  77         /* destroy and re-initialize the hashtable */
  78         class_inheritance_hash_table_clear      (ci_plugin);
  79
  80         if (ci_plugin->top_dir)
  81                 g_free(ci_plugin->top_dir);
  82         ci_plugin->top_dir = NULL;
  83 }
  84
  85 #define REGISTER_ICON(icon, stock_id) \
  86         pixbuf = gdk_pixbuf_new_from_file (icon, NULL); \
  87         icon_set = gtk_icon_set_new_from_pixbuf (pixbuf); \
  88         gtk_icon_factory_add (icon_factory, stock_id, icon_set); \
  89         g_object_unref (pixbuf);
  90
  91 static void
  92 register_stock_icons (AnjutaPlugin *plugin)
  93 {
  94         AnjutaUI *ui;
  95         GtkIconFactory *icon_factory;
  96         GtkIconSet *icon_set;
  97         GdkPixbuf *pixbuf;
  98         static gboolean registered = FALSE;
  99
 100         if (registered)
 101                 return;
 102         registered = TRUE;
 103
 104         /* Register stock icons */
 105         ui = anjuta_shell_get_ui (plugin->shell, NULL);
 106         icon_factory = anjuta_ui_get_icon_factory (ui);
 107         REGISTER_ICON (PACKAGE_PIXMAPS_DIR"/"ICON_FILE,
 108                                    "class-inheritance-plugin-icon");
 109 }
 110
 111 static gboolean
 112 activate_plugin (AnjutaPlugin *plugin)
 113 {
 114         AnjutaClassInheritance *class_inheritance;
 115         static gboolean initialized = FALSE;
 116
 117         DEBUG_PRINT ("AnjutaClassInheritance: Activating plugin ...");
 118
 119         register_stock_icons (plugin);
 120
 121         class_inheritance = ANJUTA_PLUGIN_CLASS_INHERITANCE (plugin);
 122
 123         class_inheritance_base_gui_init (class_inheritance);
 124
 125         anjuta_shell_add_widget (plugin->shell, class_inheritance->widget,
 126                                                          "AnjutaClassInheritance", _("Inheritance Graph"),
 127                                                          "class-inheritance-plugin-icon",
 128                                                          ANJUTA_SHELL_PLACEMENT_CENTER, NULL);
 129         class_inheritance->top_dir = NULL;
 130
 131         /* set up project directory watch */
 132         class_inheritance->root_watch_id = anjuta_plugin_add_watch (plugin,
 133                                                                         "project_root_uri",
 134                                                                         project_root_added,
 135                                                                         project_root_removed, NULL);
 136
 137         initialized     = TRUE;
 138         return TRUE;
 139 }
 140
 141 static gboolean
 142 deactivate_plugin (AnjutaPlugin *plugin)
 143 {
 144         DEBUG_PRINT ("AnjutaClassInheritance: Dectivating plugin ...");
 145         AnjutaClassInheritance* class_inheritance;
 146         class_inheritance = ANJUTA_PLUGIN_CLASS_INHERITANCE (plugin);
 147
 148         /* clean up the canvas [e.g. destroys it's elements */
 149         class_inheritance_clean_canvas (class_inheritance);
 150
 151         /* destroy the nodestatus hash table */
 152         if (class_inheritance->expansion_node_list) {
 153                 g_hash_table_destroy (class_inheritance->expansion_node_list);
 154                 class_inheritance->expansion_node_list = NULL;
 155         }
 156
 157         /* Container holds the last ref to this widget so it will be destroyed as
 158          * soon as removed. No need to separately destroy it. */
 159         /* In most cases, only toplevel widgets (windows) require explicit
 160          * destruction, because when you destroy a toplevel its children will
 161          * be destroyed as well. */
 162         anjuta_shell_remove_widget (plugin->shell,
 163                                                                 class_inheritance->widget,
 164                                                                 NULL);
 165
 166         /* Remove watches */
 167         anjuta_plugin_remove_watch (plugin,
 168                                                                 class_inheritance->root_watch_id,
 169                                                                 TRUE);
 170         return TRUE;
 171 }
 172
 173 static void
 174 class_inheritance_finalize (GObject *obj)
 175 {
 176         AnjutaClassInheritance *ci_plugin;
 177         ci_plugin = ANJUTA_PLUGIN_CLASS_INHERITANCE (obj);
 178
 179         if (ci_plugin->top_dir)
 180                 g_free (ci_plugin->top_dir);
 181
 182         /* Finalization codes here */
 183         GNOME_CALL_PARENT (G_OBJECT_CLASS, finalize, (obj));
 184 }
 185
 186 static void
 187 class_inheritance_dispose (GObject *obj)
 188 {
 189         /* Disposition codes */
 190         GNOME_CALL_PARENT (G_OBJECT_CLASS, dispose, (obj));
 191 }
 192
 193 static void
 194 class_inheritance_instance_init (GObject *obj)
 195 {
 196         AnjutaClassInheritance *plugin = ANJUTA_PLUGIN_CLASS_INHERITANCE (obj);
 197
 198         plugin->uiid = 0;
 199
 200         plugin->widget = NULL;
 201         plugin->graph = NULL;
 202         plugin->gvc = NULL;
 203         plugin->expansion_node_list = NULL;
 204 }
 205
 206 static void
 207 class_inheritance_class_init (GObjectClass *klass)
 208 {
 209         AnjutaPluginClass *plugin_class = ANJUTA_PLUGIN_CLASS (klass);
 210
 211         parent_class = g_type_class_peek_parent (klass);
 212
 213         plugin_class->activate = activate_plugin;
 214         plugin_class->deactivate = deactivate_plugin;
 215         klass->finalize = class_inheritance_finalize;
 216         klass->dispose = class_inheritance_dispose;
 217 }
 218
 219 ANJUTA_PLUGIN_BOILERPLATE (AnjutaClassInheritance, class_inheritance);
 220 ANJUTA_SIMPLE_PLUGIN (AnjutaClassInheritance, class_inheritance);