app/defaults.c

   1 /* Dia -- an diagram creation/manipulation program
   2  * Copyright (C) 1999 Alexander Larsson
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17  */
  18
  19 #include <config.h>
  20
  21 #include <gtk/gtk.h>
  22
  23 #include "defaults.h"
  24 #include "intl.h"
  25 #include "properties.h"
  26 #include "object_ops.h"
  27 #include "connectionpoint_ops.h"
  28 #include "object.h"
  29
  30 static GtkWidget *dialog = NULL;
  31 static GtkWidget *dialog_vbox = NULL;
  32 static GtkWidget *object_part = NULL;
  33 static DiaObjectType *current_objtype = NULL;
  34 static DiaObject *current_object = NULL;
  35
  36 static GtkWidget *no_defaults_dialog = NULL;
  37
  38 static gint defaults_respond(GtkWidget *widget, gint response_id, gpointer data);
  39
  40 static void create_dialog()
  41 {
  42   dialog = gtk_dialog_new_with_buttons(
  43              _("Object defaults"),
  44              NULL, 0,
  45              GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
  46              GTK_STOCK_APPLY, GTK_RESPONSE_APPLY,
  47              GTK_STOCK_OK, GTK_RESPONSE_OK,
  48              NULL);
  49
  50   gtk_dialog_set_default_response (GTK_DIALOG(dialog), GTK_RESPONSE_OK);
  51
  52   dialog_vbox = GTK_DIALOG (dialog)->vbox;
  53
  54   gtk_window_set_role (GTK_WINDOW (dialog), "defaults_window");
  55
  56   g_signal_connect(G_OBJECT (dialog), "response",
  57                    G_CALLBACK(defaults_respond), NULL);
  58   g_signal_connect(G_OBJECT(dialog), "delete_event",
  59                    G_CALLBACK(gtk_widget_hide), NULL);
  60
  61   no_defaults_dialog = gtk_label_new(_("This object has no defaults."));
  62   gtk_widget_show (no_defaults_dialog);
  63
  64   gtk_widget_ref(no_defaults_dialog);
  65   gtk_object_sink(GTK_OBJECT(no_defaults_dialog));
  66 }
  67
  68 static gint
  69 defaults_dialog_destroyed(GtkWidget *widget, gpointer data)
  70 {
  71   if (widget == object_part) {
  72     object_part = NULL;
  73     current_objtype = NULL;
  74     current_object = NULL;
  75   }
  76   dialog = NULL;
  77   return 0;
  78 }
  79
  80 static gint
  81 defaults_respond(GtkWidget *widget, gint response_id, gpointer data)
  82 {
  83   if (response_id == GTK_RESPONSE_OK ||
  84       response_id == GTK_RESPONSE_APPLY) {
  85     if (current_objtype != NULL) {
  86       if (current_objtype->ops->apply_defaults)
  87         current_objtype->ops->apply_defaults();
  88       else if (current_object != NULL)
  89         object_apply_props_from_dialog (current_object, object_part);
  90     }
  91   }
  92   if (response_id != GTK_RESPONSE_APPLY)
  93     gtk_widget_hide(widget);
  94   return 0;
  95 }
  96
  97 void
  98 defaults_show(DiaObjectType *objtype)
  99 {
 100   GtkWidget *defaults;
 101   DiaObject *def_object = NULL;
 102   gchar *title = NULL;
 103
 104   if (objtype != NULL) {
 105     if (objtype->ops->get_defaults != NULL)
 106       defaults = objtype->ops->get_defaults();
 107     else {
 108       def_object = dia_object_default_get (objtype);
 109       defaults = object_create_props_dialog (def_object, TRUE);
 110     }
 111     title = g_strconcat(_("Defaults: "), objtype->name, NULL);
 112   } else {
 113     defaults = NULL;
 114   }
 115
 116   if (dialog == NULL)
 117     create_dialog();
 118
 119   if ((objtype==NULL) || (defaults == NULL)) {
 120     /* No defaults or no object */
 121     defaults = no_defaults_dialog;
 122     objtype = NULL;
 123   }
 124
 125   if (object_part != NULL) {
 126     gtk_container_remove(GTK_CONTAINER(dialog_vbox), object_part);
 127     object_part = NULL;
 128   }
 129   g_signal_connect (G_OBJECT (dialog), "destroy",
 130                       G_CALLBACK(defaults_dialog_destroyed), NULL);
 131   /* don't destroy dialog when window manager close button pressed */
 132   g_signal_connect(G_OBJECT(dialog), "delete_event",
 133                    G_CALLBACK(gtk_widget_hide), NULL);
 134   g_signal_connect(GTK_OBJECT(dialog), "delete_event",
 135                    G_CALLBACK(gtk_true), NULL);
 136
 137   gtk_box_pack_start(GTK_BOX(dialog_vbox), defaults, TRUE, TRUE, 0);
 138   gtk_widget_show (defaults);
 139
 140   if (title)
 141     {
 142       gtk_window_set_title(GTK_WINDOW(dialog), title);
 143       g_free(title);
 144     }
 145   else
 146       gtk_window_set_title (GTK_WINDOW (dialog), _("Object defaults"));
 147
 148   if (object_part != defaults) {
 149     gtk_window_resize (GTK_WINDOW(dialog), 1, 1); /* shrink to default */
 150     if (dialog->window)
 151       gdk_window_invalidate_rect (dialog->window, NULL, TRUE);
 152   }
 153   gtk_window_present (GTK_WINDOW(dialog));
 154   object_part = defaults;
 155   current_objtype = objtype;
 156   current_object = def_object;
 157 }