git.sur5r.net Git - glabels/blob - glabels1/src/prefs.c

   1 /*
   2  *  (GLABELS) Label and Business Card Creation program for GNOME
   3  *
   4  *  prefs.c:  Application preferences module
   5  *
   6  *  Copyright (C) 2001-2002  Jim Evins <evins@snaught.com>.
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21  */
  22 #include <config.h>
  23
  24 #include "mdi.h"
  25 #include "propertybox.h"
  26 #include "prefs.h"
  27
  28 #include "debug.h"
  29
  30 /*============================================*/
  31 /* Private types.                             */
  32 /*============================================*/
  33
  34 typedef struct {
  35         glPrefsUnits default_units;
  36         gchar *default_page_size;
  37 } Prefs;
  38
  39 /*============================================*/
  40 /* Private globals.                           */
  41 /*============================================*/
  42 static GtkWidget *dialog = NULL;
  43
  44 static Prefs *prefs = NULL;
  45
  46 static GtkWidget *unit_pts_radio, *unit_inches_radio, *unit_mm_radio;
  47 static GtkWidget *page_size_us_letter_radio, *page_size_a4_radio;
  48
  49 /*============================================*/
  50 /* Private function prototypes.               */
  51 /*============================================*/
  52 static void apply_cb (glPropertyBox * propertybox, gint arg1, gpointer user_data);
  53
  54 static void prefs_destroy_cb (void);
  55
  56 static void prefs_changed_cb (void);
  57
  58 static Prefs *read_prefs (void);
  59
  60 static void sync_prefs (Prefs * p);
  61
  62 static void free_prefs (Prefs * p);
  63
  64 static void add_general_page (GtkWidget * dialog);
  65
  66 static void set_general_page_from_prefs (Prefs * p);
  67
  68 static void set_prefs_from_general_page (Prefs * p);
  69 \f
  70 /****************************************************************************/
  71 /* Create and display preferences dialog.                                   */
  72 /****************************************************************************/
  73 void
  74 gl_prefs_cb (GtkWidget * widget,
  75              gpointer data)
  76 {
  77         GnomeApp *app = gnome_mdi_get_active_window (GNOME_MDI (data));
  78
  79         if (prefs == NULL) {
  80                 prefs = read_prefs ();
  81         }
  82
  83         if (dialog == NULL) {
  84                 dialog = gl_property_box_new ();
  85                 gtk_window_set_title (GTK_WINDOW (dialog),
  86                                       _("Glabels: Preferences"));
  87                 gtk_window_set_transient_for (GTK_WINDOW (dialog),
  88                                               GTK_WINDOW (app));
  89
  90                 add_general_page (dialog);
  91
  92                 gtk_signal_connect (GTK_OBJECT (dialog), "destroy",
  93                                     GTK_SIGNAL_FUNC (prefs_destroy_cb), NULL);
  94
  95                 gtk_signal_connect (GTK_OBJECT (dialog), "delete_event",
  96                                     GTK_SIGNAL_FUNC (prefs_destroy_cb), NULL);
  97
  98                 gtk_signal_connect (GTK_OBJECT (dialog), "apply",
  99                                     GTK_SIGNAL_FUNC (apply_cb), NULL);
 100
 101                 gtk_widget_show_all (GTK_WIDGET (dialog));
 102         }
 103 }
 104 \f
 105 /*--------------------------------------------------------------------------*/
 106 /* PRIVATE.  "Apply" button callback.                                       */
 107 /*--------------------------------------------------------------------------*/
 108 static void
 109 apply_cb (glPropertyBox * propertybox,
 110           gint arg1,
 111           gpointer user_data)
 112 {
 113         set_prefs_from_general_page (prefs);
 114         sync_prefs (prefs);
 115 }
 116
 117 /*--------------------------------------------------------------------------*/
 118 /* PRIVATE.  Callback to finish cleaning up after tearing down dialog.      */
 119 /*--------------------------------------------------------------------------*/
 120 static void
 121 prefs_destroy_cb (void)
 122 {
 123         dialog = NULL;
 124 }
 125
 126 /*--------------------------------------------------------------------------*/
 127 /* PRIVATE.  Callback for when any control in the dialog has changed.       */
 128 /*--------------------------------------------------------------------------*/
 129 static void
 130 prefs_changed_cb (void)
 131 {
 132         gl_property_box_changed (GL_PROPERTY_BOX (dialog));
 133 }
 134 \f
 135 /*--------------------------------------------------------------------------*/
 136 /* PRIVATE.  Read and set preferences from disk.                            */
 137 /*--------------------------------------------------------------------------*/
 138 static Prefs *
 139 read_prefs (void)
 140 {
 141         Prefs *p;
 142         gchar *string;
 143         gboolean dflt;
 144
 145         p = g_new0 (Prefs, 1);
 146
 147         gnome_config_push_prefix ("/glabels/General/");
 148
 149         string = gnome_config_get_string_with_default ("Units=Inches", &dflt);
 150         if (dflt)
 151                 gnome_config_set_string ("Units", "Inches");
 152         if (g_strcasecmp (string, "Points") == 0) {
 153                 p->default_units = GL_PREFS_UNITS_PTS;
 154         } else if (g_strcasecmp (string, "Inches") == 0) {
 155                 p->default_units = GL_PREFS_UNITS_INCHES;
 156         } else if (g_strcasecmp (string, "Millimeters") == 0) {
 157                 p->default_units = GL_PREFS_UNITS_MM;
 158         }
 159         g_free (string);
 160
 161         p->default_page_size =
 162             gnome_config_get_string_with_default ("Page_size=US-Letter", &dflt);
 163         if (dflt)
 164                 gnome_config_set_string ("Page_size", "US-Letter");
 165
 166         gnome_config_pop_prefix ();
 167
 168         return p;
 169 }
 170
 171 /*--------------------------------------------------------------------------*/
 172 /* PRIVATE. Sync preferences with disk.                                     */
 173 /*--------------------------------------------------------------------------*/
 174 static void
 175 sync_prefs (Prefs * p)
 176 {
 177         gnome_config_push_prefix ("/glabels/General/");
 178         switch (p->default_units) {
 179         case GL_PREFS_UNITS_PTS:
 180                 gnome_config_set_string ("Units", "Points");
 181                 break;
 182         case GL_PREFS_UNITS_INCHES:
 183                 gnome_config_set_string ("Units", "Inches");
 184                 break;
 185         case GL_PREFS_UNITS_MM:
 186                 gnome_config_set_string ("Units", "Millimeters");
 187                 break;
 188         default:
 189                 WARN ("Illegal units");
 190                 break;
 191         }
 192         gnome_config_set_string ("Page_size", p->default_page_size);
 193         gnome_config_pop_prefix ();
 194         gnome_config_sync ();
 195 }
 196 \f
 197 /*--------------------------------------------------------------------------*/
 198 /* PRIVATE.  Free previously allocated preferences structure.               */
 199 /*--------------------------------------------------------------------------*/
 200 static void
 201 free_prefs (Prefs * p)
 202 {
 203         g_free (p);
 204 }
 205 \f
 206 /*--------------------------------------------------------------------------*/
 207 /* PRIVATE. Create and add the general page tab with controls to the dialog.*/
 208 /*--------------------------------------------------------------------------*/
 209 static void
 210 add_general_page (GtkWidget * dialog)
 211 {
 212         GtkWidget *wframe, *wlabel, *wvbox, *wvbox1;
 213         GSList *radio_group = NULL;
 214
 215         wlabel = gtk_label_new (_("General"));
 216
 217         wvbox = gtk_vbox_new (FALSE, 0);
 218
 219         /* ----- Display Units Frame ------------------------------------ */
 220         wframe = gtk_frame_new (_("Display units"));
 221         gtk_container_set_border_width (GTK_CONTAINER (wframe), 10);
 222         gtk_box_pack_start (GTK_BOX (wvbox), wframe, FALSE, FALSE, 0);
 223
 224         wvbox1 = gtk_vbox_new (FALSE, GNOME_PAD);
 225         gtk_container_set_border_width (GTK_CONTAINER (wvbox1), 10);
 226         gtk_container_add (GTK_CONTAINER (wframe), wvbox1);
 227
 228         radio_group = NULL;
 229
 230         unit_pts_radio =
 231             gtk_radio_button_new_with_label (radio_group, _("Points"));
 232         radio_group =
 233             gtk_radio_button_group (GTK_RADIO_BUTTON (unit_pts_radio));
 234         gtk_box_pack_start (GTK_BOX (wvbox1), unit_pts_radio, FALSE, FALSE, 0);
 235
 236         unit_inches_radio =
 237             gtk_radio_button_new_with_label (radio_group, _("Inches"));
 238         radio_group =
 239             gtk_radio_button_group (GTK_RADIO_BUTTON (unit_inches_radio));
 240         gtk_box_pack_start (GTK_BOX (wvbox1), unit_inches_radio, FALSE, FALSE,
 241                             0);
 242
 243         unit_mm_radio =
 244             gtk_radio_button_new_with_label (radio_group, _("Millimeters"));
 245         radio_group = gtk_radio_button_group (GTK_RADIO_BUTTON (unit_mm_radio));
 246         gtk_box_pack_start (GTK_BOX (wvbox1), unit_mm_radio, FALSE, FALSE, 0);
 247
 248         /* ----- Display Units Frame ------------------------------------ */
 249         wframe = gtk_frame_new (_("Default page size"));
 250         gtk_container_set_border_width (GTK_CONTAINER (wframe), 10);
 251         gtk_box_pack_start (GTK_BOX (wvbox), wframe, FALSE, FALSE, 0);
 252
 253         wvbox1 = gtk_vbox_new (FALSE, GNOME_PAD);
 254         gtk_container_set_border_width (GTK_CONTAINER (wvbox1), 10);
 255         gtk_container_add (GTK_CONTAINER (wframe), wvbox1);
 256
 257         radio_group = NULL;
 258
 259         page_size_us_letter_radio =
 260             gtk_radio_button_new_with_label (radio_group, "US-Letter");
 261         radio_group =
 262             gtk_radio_button_group (GTK_RADIO_BUTTON
 263                                     (page_size_us_letter_radio));
 264         gtk_box_pack_start (GTK_BOX (wvbox1), page_size_us_letter_radio, FALSE,
 265                             FALSE, 0);
 266
 267         page_size_a4_radio =
 268             gtk_radio_button_new_with_label (radio_group, "A4");
 269         radio_group =
 270             gtk_radio_button_group (GTK_RADIO_BUTTON (page_size_a4_radio));
 271         gtk_box_pack_start (GTK_BOX (wvbox1), page_size_a4_radio,
 272                             FALSE, FALSE, 0);
 273
 274         gl_property_box_append_page (GL_PROPERTY_BOX (dialog), wvbox, wlabel);
 275
 276         set_general_page_from_prefs (prefs);
 277
 278         gtk_signal_connect (GTK_OBJECT (unit_pts_radio), "toggled",
 279                             GTK_SIGNAL_FUNC (prefs_changed_cb), NULL);
 280         gtk_signal_connect (GTK_OBJECT (unit_inches_radio), "toggled",
 281                             GTK_SIGNAL_FUNC (prefs_changed_cb), NULL);
 282         gtk_signal_connect (GTK_OBJECT (unit_mm_radio), "toggled",
 283                             GTK_SIGNAL_FUNC (prefs_changed_cb), NULL);
 284
 285         gtk_signal_connect (GTK_OBJECT (page_size_us_letter_radio), "toggled",
 286                             GTK_SIGNAL_FUNC (prefs_changed_cb), NULL);
 287         gtk_signal_connect (GTK_OBJECT (page_size_a4_radio), "toggled",
 288                             GTK_SIGNAL_FUNC (prefs_changed_cb), NULL);
 289 }
 290 \f
 291 /*--------------------------------------------------------------------------*/
 292 /* PRIVATE.  Initialize general tab controls from current prefs.            */
 293 /*--------------------------------------------------------------------------*/
 294 static void
 295 set_general_page_from_prefs (Prefs * p)
 296 {
 297         switch (p->default_units) {
 298         case GL_PREFS_UNITS_PTS:
 299                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 300                                               (unit_pts_radio), TRUE);
 301                 break;
 302         case GL_PREFS_UNITS_INCHES:
 303                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 304                                               (unit_inches_radio), TRUE);
 305                 break;
 306         case GL_PREFS_UNITS_MM:
 307                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (unit_mm_radio),
 308                                               TRUE);
 309                 break;
 310         default:
 311                 WARN ("Illegal units");
 312                 break;
 313         }
 314
 315         if (g_strcasecmp (p->default_page_size, "US-Letter") == 0) {
 316                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 317                                               (page_size_us_letter_radio),
 318                                               TRUE);
 319         } else if (g_strcasecmp (p->default_page_size, "A4") == 0) {
 320                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 321                                               (page_size_a4_radio), TRUE);
 322         } else {
 323                 WARN ("Illegal page size: %s", p->default_page_size);
 324         }
 325 }
 326
 327 /*--------------------------------------------------------------------------*/
 328 /* PRIVATE.  Set current preferences based on general controls.             */
 329 /*--------------------------------------------------------------------------*/
 330 static void
 331 set_prefs_from_general_page (Prefs * p)
 332 {
 333         if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (unit_pts_radio))) {
 334                 p->default_units = GL_PREFS_UNITS_PTS;
 335         } else
 336             if (gtk_toggle_button_get_active
 337                 (GTK_TOGGLE_BUTTON (unit_inches_radio))) {
 338                 p->default_units = GL_PREFS_UNITS_INCHES;
 339         } else
 340             if (gtk_toggle_button_get_active
 341                 (GTK_TOGGLE_BUTTON (unit_mm_radio))) {
 342                 p->default_units = GL_PREFS_UNITS_MM;
 343         }
 344
 345         if (gtk_toggle_button_get_active
 346             (GTK_TOGGLE_BUTTON (page_size_us_letter_radio))) {
 347                 g_free (p->default_page_size);
 348                 p->default_page_size = g_strdup ("US-Letter");
 349         } else
 350             if (gtk_toggle_button_get_active
 351                 (GTK_TOGGLE_BUTTON (page_size_a4_radio))) {
 352                 g_free (p->default_page_size);
 353                 p->default_page_size = g_strdup ("A4");
 354         }
 355
 356 }
 357
 358 /****************************************************************************/
 359 /* Get desired units.                                                       */
 360 /****************************************************************************/
 361 glPrefsUnits
 362 gl_prefs_get_units(void)
 363 {
 364         return prefs->default_units;
 365 }
 366
 367 /****************************************************************************/
 368 /* Get desired units per point.                                             */
 369 /****************************************************************************/
 370 gdouble
 371 gl_prefs_get_units_per_point (void)
 372 {
 373         if (prefs == NULL) {
 374                 prefs = read_prefs ();
 375         }
 376
 377         switch (prefs->default_units) {
 378         case GL_PREFS_UNITS_PTS:
 379                 return 1.0;     /* points */
 380         case GL_PREFS_UNITS_INCHES:
 381                 return 1.0 / 72.0;      /* inches */
 382         case GL_PREFS_UNITS_MM:
 383                 return 0.35277778;      /* mm */
 384         default:
 385                 WARN ("Illegal units"); /* Should not happen */
 386                 return 1.0;
 387         }
 388 }
 389
 390 /****************************************************************************/
 391 /* Get precision for desired units.                                         */
 392 /****************************************************************************/
 393 gint
 394 gl_prefs_get_units_precision (void)
 395 {
 396         if (prefs == NULL) {
 397                 prefs = read_prefs ();
 398         }
 399
 400         switch (prefs->default_units) {
 401         case GL_PREFS_UNITS_PTS:
 402                 return 1;       /* points */
 403         case GL_PREFS_UNITS_INCHES:
 404                 return 3;       /* inches */
 405         case GL_PREFS_UNITS_MM:
 406                 return 1;       /* mm */
 407         default:
 408                 WARN ("Illegal units"); /* Should not happen */
 409                 return 1.0;
 410         }
 411 }
 412
 413 /****************************************************************************/
 414 /* Get step size for desired units.                                         */
 415 /****************************************************************************/
 416 gdouble
 417 gl_prefs_get_units_step_size (void)
 418 {
 419         if (prefs == NULL) {
 420                 prefs = read_prefs ();
 421         }
 422
 423         switch (prefs->default_units) {
 424         case GL_PREFS_UNITS_PTS:
 425                 return 0.1;     /* points */
 426         case GL_PREFS_UNITS_INCHES:
 427                 return 0.001;   /* inches */
 428         case GL_PREFS_UNITS_MM:
 429                 return 0.1;     /* mm */
 430         default:
 431                 WARN ("Illegal units"); /* Should not happen */
 432                 return 1.0;
 433         }
 434 }
 435
 436 /****************************************************************************/
 437 /* Get string representing desired units.                                   */
 438 /****************************************************************************/
 439 const gchar *
 440 gl_prefs_get_units_string (void)
 441 {
 442         if (prefs == NULL) {
 443                 prefs = read_prefs ();
 444         }
 445
 446         switch (prefs->default_units) {
 447         case GL_PREFS_UNITS_PTS:
 448                 return _("points");
 449         case GL_PREFS_UNITS_INCHES:
 450                 return _("inches");
 451         case GL_PREFS_UNITS_MM:
 452                 return _("mm");
 453         default:
 454                 WARN ("Illegal units"); /* Should not happen */
 455                 return _("points");
 456         }
 457 }
 458
 459 /****************************************************************************/
 460 /* Get default page size.                                                   */
 461 /****************************************************************************/
 462 const gchar *
 463 gl_prefs_get_page_size (void)
 464 {
 465         if (prefs == NULL) {
 466                 prefs = read_prefs ();
 467         }
 468
 469         return prefs->default_page_size;
 470 }