app/dia_embedd.c

   1 /* Dia -- an diagram creation/manipulation program
   2  * Copyright (C) 2000 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 #ifdef HAVE_CONFIG_H
  20 #  include <config.h>
  21 #endif
  22
  23 #include <gnome.h>
  24 #include <bonobo.h>
  25 #include <liboaf/liboaf.h>
  26
  27 #include "display.h"
  28 #include "menus.h"
  29 #include "disp_callbacks.h"
  30 #include "app_procs.h"
  31 #include "interface.h"
  32 #include "load_save.h"
  33
  34 #ifdef GNOME_PRINT
  35 #  include "render_gnomeprint.h"
  36 #endif
  37
  38 typedef struct _EmbeddedDia EmbeddedDia;
  39 typedef struct _EmbeddedView EmbeddedView;
  40
  41 struct _EmbeddedDia {
  42   BonoboEmbeddable     *embeddable;
  43
  44   Diagram *diagram;
  45 };
  46
  47 struct _EmbeddedView {
  48   BonoboView        *view;
  49   EmbeddedDia *embedded_dia;
  50   DDisplay *display;
  51 };
  52
  53 static BonoboGenericFactory *factory = NULL;
  54
  55 static void
  56 view_show_hide (EmbeddedView *view_data,
  57                 gboolean      activate)
  58 {
  59   DDisplay *ddisp = view_data->display;
  60
  61   if (activate) {
  62     toolbox_show();
  63
  64     gtk_widget_show(ddisp->origin);
  65     gtk_widget_show(ddisp->hrule);
  66     gtk_widget_show(ddisp->vrule);
  67     gtk_widget_show(ddisp->hsb);
  68     gtk_widget_show(ddisp->vsb);
  69     gtk_widget_show(ddisp->zoom_status->parent);
  70     gtk_widget_show(ddisp->modified_status);
  71   } else {
  72     toolbox_hide();
  73
  74     gtk_widget_hide(ddisp->origin);
  75     gtk_widget_hide(ddisp->hrule);
  76     gtk_widget_hide(ddisp->vrule);
  77     gtk_widget_hide(ddisp->hsb);
  78     gtk_widget_hide(ddisp->vsb);
  79     gtk_widget_hide(ddisp->zoom_status->parent);
  80     gtk_widget_hide(ddisp->modified_status);
  81   }
  82 }
  83
  84 static void
  85 dia_view_activate(BonoboView *view, gboolean activate,
  86                   EmbeddedView *view_data)
  87 {
  88   bonobo_view_activate_notify(view, activate);
  89   view_show_hide(view_data,activate);
  90 }
  91
  92 static void
  93 dia_view_display_destroy (GtkWidget *ddisp_shell, EmbeddedView *view_data)
  94 {
  95   view_data->display = NULL;
  96   bonobo_object_unref(BONOBO_OBJECT(view_data->view));
  97 }
  98
  99 static void
 100 dia_view_destroy (BonoboView *view, EmbeddedView *view_data)
 101 {
 102   if (view_data->display)
 103     ddisplay_destroy(view_data->display->shell, view_data->display);
 104   g_free(view_data);
 105 }
 106
 107 static void
 108 dia_embeddable_destroy(BonoboEmbeddable *embeddable,
 109                        EmbeddedDia *embedded_dia)
 110 {
 111   Diagram *dia = embedded_dia->diagram;
 112   DDisplay *ddisp;
 113
 114   /* Destroy all views: */
 115   while (dia->displays) {
 116     ddisp = (DDisplay *)dia->displays->data;
 117     gtk_widget_destroy(ddisp->shell);
 118   }
 119
 120   diagram_destroy(embedded_dia->diagram);
 121   g_free(embedded_dia);
 122 }
 123
 124 static void
 125 dia_view_system_exception(BonoboView *view, CORBA_Object corba_object,
 126                           CORBA_Environment *ev, gpointer data)
 127 {
 128   bonobo_object_unref(BONOBO_OBJECT(view));
 129 }
 130
 131 static void
 132 dia_embeddable_system_exception(BonoboEmbeddable *embeddable, CORBA_Object corba_object,
 133                                 CORBA_Environment *ev, gpointer data)
 134 {
 135   bonobo_object_unref(BONOBO_OBJECT(embeddable));
 136 }
 137
 138 static BonoboView *
 139 view_factory (BonoboEmbeddable *embeddable,
 140               const Bonobo_ViewFrame view_frame,
 141               EmbeddedDia *embedded_dia)
 142 {
 143   EmbeddedView *view_data;
 144   BonoboView  *view;
 145
 146   /*
 147    * Create the private view data.
 148    */
 149   view_data = g_new0 (EmbeddedView, 1);
 150   view_data->embedded_dia = embedded_dia;
 151
 152   view_data->display = new_display(embedded_dia->diagram);
 153
 154   view_show_hide (view_data, FALSE);
 155
 156   gtk_signal_connect (GTK_OBJECT (view_data->display->shell), "destroy",
 157                       GTK_SIGNAL_FUNC (dia_view_display_destroy),
 158                       view_data);
 159
 160   view = bonobo_view_new (view_data->display->shell);
 161   view_data->view = view;
 162   gtk_object_set_data (GTK_OBJECT (view), "view_data", view_data);
 163
 164   gtk_signal_connect(GTK_OBJECT (view), "activate",
 165                      GTK_SIGNAL_FUNC (dia_view_activate), view_data);
 166
 167   gtk_signal_connect(GTK_OBJECT (view), "system_exception",
 168                      GTK_SIGNAL_FUNC (dia_view_system_exception), view_data);
 169
 170   gtk_signal_connect (GTK_OBJECT (view), "destroy",
 171                       GTK_SIGNAL_FUNC (dia_view_destroy), view_data);
 172
 173
 174 #if 0
 175   menuitem = menus_get_item_from_path("<Display>/File/New diagram");
 176   gtk_widget_hide(menuitem);
 177   menuitem = menus_get_item_from_path("<Display>/File/Open...");
 178   gtk_widget_hide(menuitem);
 179   menuitem = menus_get_item_from_path("<Display>/File/Save As...");
 180   gtk_widget_hide(menuitem);
 181   menuitem = menus_get_item_from_path("<Display>/File/Close");
 182   gtk_widget_hide(menuitem);
 183   menuitem = menus_get_item_from_path("<Display>/File/Exit");
 184   gtk_widget_hide(menuitem);
 185   menuitem = menus_get_item_from_path("<Display>/View/New View");
 186   gtk_widget_hide(menuitem);
 187 #endif
 188
 189   return view;
 190 }
 191
 192 static int
 193 save_fn (BonoboPersistFile *pf,
 194          const CORBA_char  *filename,
 195          CORBA_Environment *ev,
 196          void              *closure)
 197 {
 198   EmbeddedDia *dia = closure;
 199
 200   if (!diagram_save (dia->diagram, filename))
 201     CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
 202                          ex_Bonobo_Storage_IOError, NULL);
 203   return 0;
 204 }
 205
 206 static void
 207 refresh_view (DDisplay *ddisp)
 208 {
 209   Point        middle;
 210   Rectangle   *visible;
 211
 212   visible = &ddisp->visible;
 213   middle.x = visible->left*0.5 + visible->right*0.5;
 214   middle.y = visible->top*0.5 + visible->bottom*0.5;
 215
 216   ddisplay_zoom(ddisp, &middle, 1.0);
 217   gtk_widget_queue_draw(ddisp->shell);
 218 }
 219
 220 static int
 221 load_fn (BonoboPersistFile *pf,
 222          const CORBA_char  *filename,
 223          CORBA_Environment *ev,
 224          void              *closure)
 225 {
 226   EmbeddedDia *dia = closure;
 227
 228   if (!diagram_load_into (dia->diagram, filename, NULL)) {
 229           g_warning ("Failed to load '%s'", filename);
 230           CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
 231                                ex_Bonobo_Persist_WrongDataType,
 232                                NULL);
 233   } else {
 234           GSList *l;
 235           diagram_update_extents(dia->diagram);
 236           for (l=dia->diagram->displays;l;l=l->next)
 237                   refresh_view (l->data);
 238   }
 239   return 0;
 240 }
 241
 242 #ifdef GNOME_PRINT
 243 static void
 244 object_print (GnomePrintContext         *ctx,
 245               double                     width,
 246               double                     height,
 247               const Bonobo_PrintScissor *scissor,
 248               gpointer                   user_data)
 249 {
 250   RendererGPrint *rend;
 251   EmbeddedDia    *edia = user_data;
 252   Diagram        *dia = edia->diagram;
 253   Rectangle      *extents;
 254   double          scalex, scaley;
 255
 256   rend = new_gnomeprint_renderer(dia, ctx);
 257
 258   /*
 259    * FIXME: we need to de-complicate all this - this should
 260    * probably be done by scaling the view to the extent or
 261    * alternatively keeping the visible bounds on the embeddable
 262    * not the view; or possibly none of these.
 263    */
 264   extents = &dia->data->extents;
 265
 266   scalex = width / (extents->right - extents->left);
 267   scaley = -height / (extents->bottom - extents->top);
 268
 269   gnome_print_translate (ctx, - scalex* extents->left,
 270                          height - scaley * extents->top);
 271   gnome_print_scale     (ctx, scalex, scaley);
 272
 273
 274   data_render(dia->data, (Renderer *)rend, extents, NULL, NULL);
 275
 276   g_free (rend);
 277 }
 278 #endif
 279
 280 static BonoboObject *
 281 embeddable_factory (BonoboGenericFactory *this,
 282                     void *data)
 283 {
 284   BonoboPersistFile *pfile;
 285   BonoboEmbeddable  *embeddable;
 286   BonoboPrint       *print;
 287   EmbeddedDia       *embedded_dia;
 288
 289   embedded_dia = g_new0 (EmbeddedDia, 1);
 290   if (embedded_dia == NULL)
 291           return NULL;
 292
 293   embedded_dia->diagram = new_diagram("foobar_embedd");
 294
 295   embeddable = bonobo_embeddable_new (BONOBO_VIEW_FACTORY (view_factory),
 296                                       embedded_dia);
 297
 298   if (embeddable == NULL) {
 299     diagram_destroy (embedded_dia->diagram);
 300     return NULL;
 301   }
 302
 303   embedded_dia->embeddable = embeddable;
 304
 305   gtk_signal_connect(GTK_OBJECT(embeddable), "system_exception",
 306                      GTK_SIGNAL_FUNC (dia_embeddable_system_exception),
 307                      embedded_dia);
 308
 309   gtk_signal_connect(GTK_OBJECT(embeddable), "destroy",
 310                      GTK_SIGNAL_FUNC (dia_embeddable_destroy),
 311                      embedded_dia);
 312
 313   /* Register the Bonobo::PersistFile interface. */
 314   pfile = bonobo_persist_file_new (load_fn, save_fn, embedded_dia);
 315   bonobo_object_add_interface (
 316           BONOBO_OBJECT (embeddable),
 317           BONOBO_OBJECT (pfile));
 318
 319 #ifdef GNOME_PRINT
 320   /* Register the Bonobo::Print interface */
 321   print = bonobo_print_new (object_print, embedded_dia);
 322   if (!print) {
 323           bonobo_object_unref (BONOBO_OBJECT (embeddable));
 324           return NULL;
 325   }
 326
 327   bonobo_object_add_interface (BONOBO_OBJECT (embeddable),
 328                                BONOBO_OBJECT (print));
 329 #endif
 330
 331   return BONOBO_OBJECT (embeddable);
 332 }
 333
 334 static BonoboGenericFactory *
 335 init_dia_factory (void)
 336 {
 337   return bonobo_generic_factory_new ("OAFIID:GNOME_Dia_DiagramFactory",
 338                                      embeddable_factory, NULL);
 339 }
 340
 341 static void
 342 init_server_factory (int argc, char **argv)
 343 {
 344   CORBA_ORB orb;
 345
 346   gnome_init_with_popt_table ("dia-embedd", VERSION,
 347                               argc, argv, oaf_popt_options, 0, NULL);
 348
 349   orb = oaf_init (argc, argv);
 350
 351   if (bonobo_init (orb, NULL, NULL) == FALSE)
 352     g_error (_("Could not initialize Bonobo!"));
 353   bonobo_activate ();
 354 }
 355
 356 int
 357 app_is_embedded(void)
 358 {
 359   return 1;
 360 }
 361
 362 static void
 363 last_unref_cb (BonoboObject *bonobo_object,
 364                gpointer      dummy)
 365 {
 366   bonobo_object_unref (BONOBO_OBJECT (factory));
 367   gtk_main_quit ();
 368 }
 369
 370 int
 371 main (int argc, char **argv)
 372 {
 373   GtkWidget *menuitem;
 374
 375   init_server_factory (argc, argv);
 376   factory = init_dia_factory ();
 377
 378   app_init(0, NULL);
 379   app_splash_done();
 380
 381 #ifdef GNOME
 382   menuitem = menus_get_item_from_path("<Toolbox>/File/New diagram", NULL);
 383   gtk_widget_hide(menuitem);
 384   menuitem = menus_get_item_from_path("<Toolbox>/File/Open...", NULL);
 385   gtk_widget_hide(menuitem);
 386   menuitem = menus_get_item_from_path("<Toolbox>/File/Exit", NULL);
 387   gtk_widget_hide(menuitem);
 388 #else
 389   menuitem = menus_get_item_from_path("<Toolbox>/File/New", NULL);
 390   gtk_widget_hide(menuitem);
 391   menuitem = menus_get_item_from_path("<Toolbox>/File/Open", NULL);
 392   gtk_widget_hide(menuitem);
 393   menuitem = menus_get_item_from_path("<Toolbox>/File/sep1", NULL);
 394   gtk_widget_hide(menuitem);
 395   menuitem = menus_get_item_from_path("<Toolbox>/File/Quit", NULL);
 396   gtk_widget_hide(menuitem);
 397 #endif
 398
 399
 400   gtk_signal_connect (GTK_OBJECT (bonobo_context_running_get ()),
 401                       "last_unref",
 402                       GTK_SIGNAL_FUNC (last_unref_cb),
 403                       NULL);
 404   /*
 405    * Start processing.
 406    */
 407   bonobo_main ();
 408
 409   return 0;
 410 }
 411