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  *            51 Franklin Street, Fifth Floor,
  21  *            Boston,  MA  02110-1301, 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 "anjuta-class-inheritance-plugin-48.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 static void
  86 register_stock_icons (AnjutaPlugin *plugin)
  87 {
  88         static gboolean registered = FALSE;
  89
  90         if (registered)
  91                 return;
  92         registered = TRUE;
  93
  94         BEGIN_REGISTER_ICON (plugin);
  95         REGISTER_ICON (PACKAGE_PIXMAPS_DIR"/"ICON_FILE,
  96                                    "class-inheritance-plugin-icon");
  97         END_REGISTER_ICON;
  98 }
  99
 100 static gboolean
 101 activate_plugin (AnjutaPlugin *plugin)
 102 {
 103         AnjutaClassInheritance *class_inheritance;
 104         static gboolean initialized = FALSE;
 105
 106         DEBUG_PRINT ("AnjutaClassInheritance: Activating plugin ...");
 107
 108         register_stock_icons (plugin);
 109
 110         class_inheritance = ANJUTA_PLUGIN_CLASS_INHERITANCE (plugin);
 111
 112         class_inheritance_base_gui_init (class_inheritance);
 113
 114         anjuta_shell_add_widget (plugin->shell, class_inheritance->widget,
 115                                                          "AnjutaClassInheritance", _("Inheritance Graph"),
 116                                                          "class-inheritance-plugin-icon",
 117                                                          ANJUTA_SHELL_PLACEMENT_CENTER, NULL);
 118         class_inheritance->top_dir = NULL;
 119
 120         /* set up project directory watch */
 121         class_inheritance->root_watch_id = anjuta_plugin_add_watch (plugin,
 122                                                                         "project_root_uri",
 123                                                                         project_root_added,
 124                                                                         project_root_removed, NULL);
 125
 126         initialized     = TRUE;
 127         return TRUE;
 128 }
 129
 130 static gboolean
 131 deactivate_plugin (AnjutaPlugin *plugin)
 132 {
 133         DEBUG_PRINT ("AnjutaClassInheritance: Dectivating plugin ...");
 134         AnjutaClassInheritance* class_inheritance;
 135         class_inheritance = ANJUTA_PLUGIN_CLASS_INHERITANCE (plugin);
 136
 137         /* clean up the canvas [e.g. destroys it's elements */
 138         class_inheritance_clean_canvas (class_inheritance);
 139
 140         /* destroy the nodestatus hash table */
 141         if (class_inheritance->expansion_node_list) {
 142                 g_hash_table_destroy (class_inheritance->expansion_node_list);
 143                 class_inheritance->expansion_node_list = NULL;
 144         }
 145
 146         /* Container holds the last ref to this widget so it will be destroyed as
 147          * soon as removed. No need to separately destroy it. */
 148         /* In most cases, only toplevel widgets (windows) require explicit
 149          * destruction, because when you destroy a toplevel its children will
 150          * be destroyed as well. */
 151         anjuta_shell_remove_widget (plugin->shell,
 152                                                                 class_inheritance->widget,
 153                                                                 NULL);
 154
 155         /* Remove watches */
 156         anjuta_plugin_remove_watch (plugin,
 157                                                                 class_inheritance->root_watch_id,
 158                                                                 TRUE);
 159         return TRUE;
 160 }
 161
 162 static void
 163 class_inheritance_finalize (GObject *obj)
 164 {
 165         AnjutaClassInheritance *ci_plugin;
 166         ci_plugin = ANJUTA_PLUGIN_CLASS_INHERITANCE (obj);
 167
 168         if (ci_plugin->top_dir)
 169                 g_free (ci_plugin->top_dir);
 170
 171         /* Finalization codes here */
 172         GNOME_CALL_PARENT (G_OBJECT_CLASS, finalize, (obj));
 173 }
 174
 175 static void
 176 class_inheritance_dispose (GObject *obj)
 177 {
 178         /* Disposition codes */
 179         GNOME_CALL_PARENT (G_OBJECT_CLASS, dispose, (obj));
 180 }
 181
 182 static void
 183 class_inheritance_instance_init (GObject *obj)
 184 {
 185         AnjutaClassInheritance *plugin = ANJUTA_PLUGIN_CLASS_INHERITANCE (obj);
 186
 187         plugin->uiid = 0;
 188
 189         plugin->widget = NULL;
 190         plugin->graph = NULL;
 191         plugin->gvc = NULL;
 192         plugin->expansion_node_list = NULL;
 193 }
 194
 195 static void
 196 class_inheritance_class_init (GObjectClass *klass)
 197 {
 198         AnjutaPluginClass *plugin_class = ANJUTA_PLUGIN_CLASS (klass);
 199
 200         parent_class = g_type_class_peek_parent (klass);
 201
 202         plugin_class->activate = activate_plugin;
 203         plugin_class->deactivate = deactivate_plugin;
 204         klass->finalize = class_inheritance_finalize;
 205         klass->dispose = class_inheritance_dispose;
 206 }
 207
 208 ANJUTA_PLUGIN_BOILERPLATE (AnjutaClassInheritance, class_inheritance);
 209 ANJUTA_SIMPLE_PLUGIN (AnjutaClassInheritance, class_inheritance);