gfig.c 147 KB
Newer Older
Manish Singh's avatar
Manish Singh committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
/*
 * Copyright (C) 1995 Spencer Kimball and Peter Mattis
 *
 * This is a plug-in for the GIMP.
 *
 * Generates images containing vector type drawings.
 *
 * Copyright (C) 1997 Andy Thomas  alt@picnic.demon.co.uk
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
22
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Manish Singh's avatar
Manish Singh committed
23 24
 */

Tor Lillqvist's avatar
Tor Lillqvist committed
25 26
#include "config.h"

Manish Singh's avatar
Manish Singh committed
27 28
#include <stdio.h>
#include <stdlib.h>
29
#include <errno.h>
30

Tor Lillqvist's avatar
Tor Lillqvist committed
31
#ifdef HAVE_UNISTD_H
Manish Singh's avatar
Manish Singh committed
32
#include <unistd.h>
Tor Lillqvist's avatar
Tor Lillqvist committed
33
#endif
34

Manish Singh's avatar
Manish Singh committed
35
#include <string.h>
36 37 38 39 40 41

#ifdef __GNUC__
#warning GTK_DISABLE_DEPRECATED
#endif
#undef GTK_DISABLE_DEPRECATED

Manish Singh's avatar
Manish Singh committed
42
#include <gtk/gtk.h>
Tor Lillqvist's avatar
Tor Lillqvist committed
43

44
#ifdef G_OS_WIN32
Tor Lillqvist's avatar
Tor Lillqvist committed
45 46 47 48
#  include <io.h>
#  ifndef W_OK
#    define W_OK 2
#  endif
49 50
#endif

51 52
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
Manish Singh's avatar
Manish Singh committed
53

54 55
#include "libgimp/stdplugins-intl.h"

56
#include "gfig.h"
57 58 59 60 61 62 63 64 65
#include "gfig-arc.h"
#include "gfig-bezier.h"
#include "gfig-circle.h"
#include "gfig-dobject.h"
#include "gfig-ellipse.h"
#include "gfig-line.h"
#include "gfig-poly.h"
#include "gfig-spiral.h"
#include "gfig-star.h"
66 67
#include "gfig-stock.h"

68
#include "pix-data.h"
Manish Singh's avatar
Manish Singh committed
69

70

Manish Singh's avatar
Manish Singh committed
71 72
/***** Magic numbers *****/

73 74 75 76 77
#define RESPONSE_UNDO    1
#define RESPONSE_CLEAR   2
#define RESPONSE_SAVE    3
#define RESPONSE_PAINT   4

78 79
#define PREVIEW_SIZE     400
#define SCALE_WIDTH      120
Manish Singh's avatar
Manish Singh committed
80

81 82 83 84
#define MIN_GRID         10
#define MAX_GRID         50
#define MAX_UNDO         10
#define MIN_UNDO         1
Manish Singh's avatar
Manish Singh committed
85 86
#define SMALL_PREVIEW_SZ 48
#define BRUSH_PREVIEW_SZ 32
87
#define GFIG_HEADER      "GFIG Version 0.1\n"
Manish Singh's avatar
Manish Singh committed
88

89 90 91 92 93 94 95
/* For the isometric grid */
#define SQRT3 1.73205080756887729353   /* Square root of 3 */
#define SIN_1o6PI_RAD 0.5              /* Sine    1/6 Pi Radians */
#define COS_1o6PI_RAD SQRT3 / 2        /* Cosine  1/6 Pi Radians */
#define TAN_1o6PI_RAD 1 / SQRT3        /* Tangent 1/6 Pi Radians == SIN / COS */
#define RECIP_TAN_1o6PI_RAD SQRT3      /* Reciprocal of Tangent 1/6 Pi Radians */

96
#define PREVIEW_MASK  (GDK_EXPOSURE_MASK       | \
Manish Singh's avatar
Manish Singh committed
97
		       GDK_POINTER_MOTION_MASK | \
98
                       GDK_BUTTON_PRESS_MASK   | \
Manish Singh's avatar
Manish Singh committed
99
		       GDK_BUTTON_RELEASE_MASK | \
100 101 102
		       GDK_BUTTON_MOTION_MASK  | \
		       GDK_KEY_PRESS_MASK      | \
		       GDK_KEY_RELEASE_MASK)
Manish Singh's avatar
Manish Singh committed
103

104
static GtkWidget *top_level_dlg;
105
static GimpDrawable *gfig_select_drawable;
106 107
GtkWidget    *gfig_preview;
GtkWidget    *pic_preview;
108
static GtkWidget    *gfig_gtk_list;
109 110
gint32        gfig_image;
gint32        gfig_drawable;
111 112
static GtkWidget    *brush_page_pw;
static GtkWidget    *brush_sel_button;
Manish Singh's avatar
Manish Singh committed
113

114
static gint   img_width, img_height, img_bpp, real_img_bpp;
Manish Singh's avatar
Manish Singh committed
115 116

static void      query  (void);
117 118 119 120 121
static void      run    (const gchar      *name,
			 gint              nparams,
			 const GimpParam  *param,
			 gint             *nreturn_vals,
			 GimpParam       **return_vals);
122 123

static gint      gfig_dialog               (void);
124 125
static void      gfig_response             (GtkWidget *widget,
                                            gint       response_id,
126
					    gpointer   data);
127 128
static void      gfig_paint_callback       (void);

Sven Neumann's avatar
Sven Neumann committed
129
static gboolean  pic_preview_expose        (GtkWidget *widget,
130
					    GdkEvent  *event);
Sven Neumann's avatar
Sven Neumann committed
131 132
static void      gfig_preview_realize      (GtkWidget *widget);
static gboolean  gfig_preview_expose       (GtkWidget *widget,
133
					    GdkEvent  *event);
Sven Neumann's avatar
Sven Neumann committed
134
static gboolean  gfig_preview_events       (GtkWidget *widget,
135 136 137 138 139 140 141 142 143
					    GdkEvent  *event);
static gint      gfig_brush_preview_events (GtkWidget *widget,
					    GdkEvent  *event);

static void      gfig_scale_update_scale   (GtkAdjustment *adjustment,
					    gdouble       *value);

static void      gfig_scale2img_update     (GtkWidget *widget,
					    gpointer   data);
144 145
static gint      gfig_scale_x    	   (gint       x);
static gint      gfig_scale_y    	   (gint       y);
146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179
static gint      gfig_invscale_x           (gint       x);
static gint      gfig_invscale_y           (gint       y);
static GdkGC *   gfig_get_grid_gc          (GtkWidget *widget,
					    gint       gctype);
static void      gfig_pos_enable           (GtkWidget *widget,
					    gpointer   data);

static gint      list_button_press         (GtkWidget      *widget,
					    GdkEventButton *event,
					    gpointer        data);

static void      rescan_button_callback    (GtkWidget *widget,
					    gpointer   data);
static void      load_button_callback      (GtkWidget *widget,
					    gpointer   data);
static void      new_button_callback       (GtkWidget *widget,
					    gpointer   data);
static void   gfig_do_delete_gfig_callback (GtkWidget *widget,
					    gboolean   delete,
					    gpointer   data);
static void      gfig_delete_gfig_callback (GtkWidget *widget,
					    gpointer   data);
static void      edit_button_callback      (GtkWidget *widget,
					    gpointer   data);
static void      merge_button_callback     (GtkWidget *widget,
					    gpointer   data);
static void      about_button_callback     (GtkWidget *widget,
					    gpointer   data);
static void      reload_button_callback    (GtkWidget *widget,
					    gpointer   data);

static void      do_gfig                   (void);
static void      dialog_update_preview     (void);

180 181
static void      draw_grid                 (void);
static void      toggle_show_image         (void);
182 183 184 185 186 187 188 189
static void      toggle_obj_type           (GtkWidget *widget,
					    gpointer   data);

static void      gfig_new_gc               (void);
static void      find_grid_pos             (GdkPoint  *p,
					    GdkPoint  *gp,
					    guint      state);

Manish Singh's avatar
Manish Singh committed
190

191
GimpPlugInInfo PLUG_IN_INFO =
Manish Singh's avatar
Manish Singh committed
192
{
193 194 195 196
  NULL,  /* init_proc  */
  NULL,  /* quit_proc  */
  query, /* query_proc */
  run,   /* run_proc   */
Manish Singh's avatar
Manish Singh committed
197 198
};

199
#define GRID_TYPE_MENU   1
Manish Singh's avatar
Manish Singh committed
200
#define GRID_RENDER_MENU 2
201
#define GRID_IGNORE      0
202 203
#define GRID_HIGHTLIGHT  1
#define GRID_RESTORE     2
Manish Singh's avatar
Manish Singh committed
204 205 206

#define GFIG_BLACK_GC -2
#define GFIG_WHITE_GC -3
207
#define GFIG_GREY_GC  -4
Manish Singh's avatar
Manish Singh committed
208 209

#define PAINT_LAYERS_MENU 1
210 211
#define PAINT_BGS_MENU    2
#define PAINT_TYPE_MENU   3
Manish Singh's avatar
Manish Singh committed
212

213 214
#define SELECT_TYPE_MENU      1
#define SELECT_ARCTYPE_MENU   2
Manish Singh's avatar
Manish Singh committed
215 216 217 218 219 220 221 222
#define SELECT_TYPE_MENU_FILL 3
#define SELECT_TYPE_MENU_WHEN 4

#define OBJ_SELECT_GT 1
#define OBJ_SELECT_LT 2
#define OBJ_SELECT_EQ 4

/* Must keep in step with the above */
223 224 225 226 227 228 229 230 231 232 233 234
typedef struct
{
  void      *gridspacing;
  GtkWidget *gridtypemenu;
  GtkWidget *drawgrid;
  GtkWidget *snap2grid;
  GtkWidget *lockongrid;
  GtkWidget *showcontrol;
} GfigOptWidgets;

static GfigOptWidgets gfig_opt_widget;

Manish Singh's avatar
Manish Singh committed
235
/* Values when first invoked */
236
SelectItVals selvals =
Manish Singh's avatar
Manish Singh committed
237 238
{
  {
Sven Neumann's avatar
Sven Neumann committed
239 240 241 242 243 244
    MIN_GRID + (MAX_GRID - MIN_GRID)/2, /* Gridspacing     */
    RECT_GRID,            /* Default to rectangle type     */
    FALSE,                /* drawgrid                      */
    FALSE,                /* snap2grid                     */
    FALSE,                /* lockongrid                    */
    TRUE                  /* show control points           */
Manish Singh's avatar
Manish Singh committed
245
  },
Sven Neumann's avatar
Sven Neumann committed
246
  FALSE,                  /* show image                    */
Manish Singh's avatar
Manish Singh committed
247
  MIN_UNDO + (MAX_UNDO - MIN_UNDO)/2,  /* Max level of undos */
Sven Neumann's avatar
Sven Neumann committed
248 249 250 251 252 253 254 255 256 257 258 259 260
  TRUE,                   /* Show pos updates              */
  0.0,                    /* Brush fade                    */
  0.0,                    /* Brush gradient                */
  20.0,                   /* Air bursh pressure            */
  ORIGINAL_LAYER,         /* Draw all objects on one layer */
  LAYER_TRANS_BG,         /* New layers background         */
  PAINT_BRUSH_TYPE,       /* Default to use brushes        */
  FALSE,                  /* reverse lines                 */
  TRUE,                   /* Scale to image when painting  */
  1.0,                    /* Scale to image fp             */
  FALSE,                  /* Approx circles by drawing lines */
  BRUSH_BRUSH_TYPE,       /* Default to use a brush        */
  LINE                    /* Initial object type           */
Manish Singh's avatar
Manish Singh committed
261 262
};

263
selection_option selopt =
264
{
265 266 267 268
  ADD,          /* type */
  FALSE,        /* Antia */
  FALSE,        /* Feather */
  10.0,         /* feather radius */
Manish Singh's avatar
Manish Singh committed
269 270
  ARC_SEGMENT,  /* Arc as a segment */
  FILL_PATTERN, /* Fill as pattern */
271 272
  FILL_EACH,    /* Fill after each selection */
  100.0,        /* Max opacity */
Manish Singh's avatar
Manish Singh committed
273 274 275
};


276 277
static gchar *gfig_path       = NULL;
static GList *gfig_list       = NULL;
278
gint   line_no;
Manish Singh's avatar
Manish Singh committed
279

280
gint obj_show_single   = -1; /* -1 all >= 0 object number */
Manish Singh's avatar
Manish Singh committed
281 282 283 284 285

/* Structures etc for the objects */
/* Points used to draw the object  */


286 287
Dobject *obj_creating; /* Object we are creating */
Dobject *tmp_line;     /* Needed when drawing lines */
Manish Singh's avatar
Manish Singh committed
288

289 290
typedef struct BrushDesc
{
291 292 293 294 295 296 297 298 299
  gchar                *name;
  gdouble               opacity;
  gint                  spacing;
  GimpLayerModeEffects  paint_mode;
  gint                  width;
  gint                  height;
  guchar               *pv_buf;  /* Buffer where brush placed */
  gint16                x_off;
  gint16                y_off;
300
  const gchar          *popup;
301
} BrushDesc;
Manish Singh's avatar
Manish Singh committed
302

303

304
GFigObj  *current_obj;
305 306
static GFigObj  *pic_obj;
static DAllObjs *undo_table[MAX_UNDO];
307
gint      need_to_scale;
308 309
static gint32    brush_image_ID = -1;

Sven Neumann's avatar
Sven Neumann committed
310 311
static GtkWidget *gfig_op_menu;    /* Popup menu in the list box */
static GtkWidget *object_list;     /* Top preview frame window */
312
static GtkWidget *fade_out_hbox;   /* Fade out widget in brush page */
BST 2000 Andy Thomas's avatar
BST 2000 Andy Thomas committed
313
static GtkWidget *gradient_hbox;   /* Gradient widget in brush page */
314 315
static GtkWidget *pressure_hbox;   /* Pressure widget in brush page */
static GtkWidget *pencil_hbox;     /* Dummy widget in brush page */
316
static GtkWidget *pos_label;       /* XY pos marker */
317 318 319
static GtkWidget *brush_page_widget; /* Widget for the brush part of notebook */
static GtkWidget *select_page_widget; /* Widget for the selection part
				       * of notebook */
Manish Singh's avatar
Manish Singh committed
320

321
static gint       undo_water_mark = -1; /* Last slot filled in -1 = no undo */
322
gboolean       drawing_pic = FALSE;  /* If true drawing to the small preview */
323 324 325 326
static GtkWidget *status_label_dname;
static GtkWidget *status_label_fname;
static GFigObj   *gfig_obj_for_menu; /* More static data -
				      * need to know which object was selected*/
327
static GtkWidget *save_menu_item;
Manish Singh's avatar
Manish Singh committed
328 329 330 331


/* Don't up just like BIGGG source files? */

332 333
static GFigObj  * gfig_load               (const gchar *filename,
                                           const gchar *name);
334 335 336 337 338 339 340 341 342 343 344 345 346 347
static void       free_all_objs           (DAllObjs * objs);
static GFigObj  * gfig_new                (void);
static void       clear_undo              (void);
static void       list_button_update      (GFigObj *obj);
static void       gfig_update_stat_labels (void);
static void       gfig_obj_modified       (GFigObj *obj, gint stat_type);
static void       gfig_op_menu_create     (GtkWidget *window);
static void       gridtype_menu_callback  (GtkWidget *widget, gpointer data);

static void       new_obj_2edit           (GFigObj *obj);
static gint       load_options            (GFigObj *gfig, FILE *fp);
static gint       gfig_obj_counts         (DAllObjs * objs);

static void    gfig_brush_fill_preview_xy (GtkWidget *pw, gint x , gint y);
Manish Singh's avatar
Manish Singh committed
348

349 350
static void      brush_list_button_callback (BrushDesc *bdesc);

Manish Singh's avatar
Manish Singh committed
351 352 353

/* globals */

354
static gint    gfig_run;
355
GdkGC  *gfig_gc;
356 357 358 359
static GdkGC  *grid_hightlight_drawgc;
static gint    grid_gc_type = GTK_STATE_NORMAL;
static guchar *pv_cache = NULL;
static guchar  preview_row[PREVIEW_SIZE*4];
Manish Singh's avatar
Manish Singh committed
360 361

/* Stuff for the preview bit */
362 363
static gint    sel_x1, sel_y1, sel_x2, sel_y2;
static gint    sel_width, sel_height;
364
gint    preview_width, preview_height;
365
static gint    has_alpha;
366
gdouble scale_x_factor, scale_y_factor;
367
static gdouble org_scale_x_factor, org_scale_y_factor;
Manish Singh's avatar
Manish Singh committed
368

Adrian Likins's avatar
Adrian Likins committed
369
MAIN ()
Manish Singh's avatar
Manish Singh committed
370 371

static void
372
query (void)
Manish Singh's avatar
Manish Singh committed
373
{
374
  static GimpParamDef args[] =
Manish Singh's avatar
Manish Singh committed
375
  {
376 377 378
    { GIMP_PDB_INT32, "run_mode", "Interactive, non-interactive" },
    { GIMP_PDB_IMAGE, "image", "Input image (unused)" },
    { GIMP_PDB_DRAWABLE, "drawable", "Input drawable" },
379
    { GIMP_PDB_INT32, "dummy", "dummy" }
Manish Singh's avatar
Manish Singh committed
380
  };
David Monniaux's avatar
David Monniaux committed
381

Manish Singh's avatar
Manish Singh committed
382
  gimp_install_procedure ("plug_in_gfig",
Marc Lehmann's avatar
Marc Lehmann committed
383 384
			  "Create Geometrical shapes with the Gimp",
			  "More here later",
Manish Singh's avatar
Manish Singh committed
385 386 387
			  "Andy Thomas",
			  "Andy Thomas",
			  "1997",
388
			  N_("<Image>/Filters/Render/_Gfig..."),
Manish Singh's avatar
Manish Singh committed
389
			  "RGB*, GRAY*",
390
			  GIMP_PLUGIN,
391
			  G_N_ELEMENTS (args), 0,
392
			  args, NULL);
Manish Singh's avatar
Manish Singh committed
393 394 395
}

static void
396 397 398 399 400
run (const gchar      *name,
     gint              nparams,
     const GimpParam  *param,
     gint             *nreturn_vals,
     GimpParam       **return_vals)
Manish Singh's avatar
Manish Singh committed
401
{
402 403 404 405
  GimpParam         *values = g_new (GimpParam, 1);
  GimpDrawable      *drawable;
  GimpRunMode        run_mode;
  GimpPDBStatusType  status = GIMP_PDB_SUCCESS;
Manish Singh's avatar
Manish Singh committed
406

407
  gint pwidth, pheight;
Manish Singh's avatar
Manish Singh committed
408

409 410
  INIT_I18N ();

Manish Singh's avatar
Manish Singh committed
411 412 413 414 415 416 417
  run_mode = param[0].data.d_int32;
  gfig_image = param[1].data.d_image;
  gfig_drawable = param[2].data.d_drawable;

  *nreturn_vals = 1;
  *return_vals = values;

418
  values[0].type = GIMP_PDB_STATUS;
Manish Singh's avatar
Manish Singh committed
419 420
  values[0].data.d_status = status;

421
  gfig_select_drawable = drawable = gimp_drawable_get (param[2].data.d_drawable);
Manish Singh's avatar
Manish Singh committed
422 423

  /* TMP Hack - clear any selections */
424 425
  if (! gimp_selection_is_empty (gfig_image))
    gimp_selection_clear (gfig_image);
Manish Singh's avatar
Manish Singh committed
426

427 428
  gimp_drawable_mask_bounds (drawable->drawable_id,
			     &sel_x1, &sel_y1, &sel_x2, &sel_y2);
Manish Singh's avatar
Manish Singh committed
429 430 431 432 433

  sel_width  = sel_x2 - sel_x1;
  sel_height = sel_y2 - sel_y1;

  /* Calculate preview size */
434

435 436 437 438 439 440 441 442 443
  if (sel_width > sel_height)
    {
      pwidth  = MIN (sel_width, PREVIEW_SIZE);
      pheight = sel_height * pwidth / sel_width;
    }
  else
    {
      pheight = MIN (sel_height, PREVIEW_SIZE);
      pwidth  = sel_width * pheight / sel_height;
444
    }
445

446
  preview_width  = MAX (pwidth, 2);  /* Min size is 2 */
447
  preview_height = MAX (pheight, 2);
Manish Singh's avatar
Manish Singh committed
448

449 450 451 452
  org_scale_x_factor = scale_x_factor =
    (gdouble) sel_width / (gdouble) preview_width;
  org_scale_y_factor = scale_y_factor =
    (gdouble) sel_height / (gdouble) preview_height;
453

Manish Singh's avatar
Manish Singh committed
454 455
  switch (run_mode)
    {
456
    case GIMP_RUN_INTERACTIVE:
Manish Singh's avatar
Manish Singh committed
457
      /*gimp_get_data ("plug_in_gfig", &selvals);*/
458
      if (! gfig_dialog ())
Manish Singh's avatar
Manish Singh committed
459 460 461 462 463 464
	{
	  gimp_drawable_detach (drawable);
	  return;
	}
      break;

465 466
    case GIMP_RUN_NONINTERACTIVE:
      status = GIMP_PDB_CALLING_ERROR;
Manish Singh's avatar
Manish Singh committed
467 468
      break;

469
    case GIMP_RUN_WITH_LAST_VALS:
Manish Singh's avatar
Manish Singh committed
470 471 472 473 474 475 476
      /*gimp_get_data ("plug_in_gfig", &selvals);*/
      break;

    default:
      break;
    }

477 478
  if (gimp_drawable_is_rgb (drawable->drawable_id) ||
      gimp_drawable_is_gray (drawable->drawable_id))
Manish Singh's avatar
Manish Singh committed
479 480
    {
      /* Set the tile cache size */
481 482
      gimp_tile_cache_ntiles ((drawable->width + gimp_tile_width () - 1) /
			      gimp_tile_width ());
Manish Singh's avatar
Manish Singh committed
483

484
      do_gfig ();
Manish Singh's avatar
Manish Singh committed
485

486
      if (run_mode != GIMP_RUN_NONINTERACTIVE)
Manish Singh's avatar
Manish Singh committed
487 488 489
	gimp_displays_flush ();

#if 0
490
      if (run_mode == GIMP_RUN_INTERACTIVE)
Manish Singh's avatar
Manish Singh committed
491 492 493 494 495
	gimp_set_data ("plug_in_gfig", &selvals, sizeof (SelectItVals));
#endif /* 0 */
    }
  else
    {
496
      status = GIMP_PDB_EXECUTION_ERROR;
Manish Singh's avatar
Manish Singh committed
497 498 499 500 501 502 503 504 505
    }

  values[0].data.d_status = status;

  gimp_drawable_detach (drawable);
}

/*
  Translate SPACE to "\\040", etc.
Manish Singh's avatar
Manish Singh committed
506
  Taken from gflare plugin
Manish Singh's avatar
Manish Singh committed
507
 */
508 509 510
static void
gfig_name_encode (gchar *dest,
		  gchar *src)
Manish Singh's avatar
Manish Singh committed
511
{
512
  gint cnt = MAX_LOAD_LINE - 1;
Manish Singh's avatar
Manish Singh committed
513 514 515

  while (*src && cnt--)
    {
516
      if (g_ascii_iscntrl (*src) || g_ascii_isspace (*src) || *src == '\\')
Manish Singh's avatar
Manish Singh committed
517 518 519 520 521 522 523 524 525 526 527 528 529
	{
	  sprintf (dest, "\\%03o", *src++);
	  dest += 4;
	}
      else
	*dest++ = *src++;
    }
  *dest = '\0';
}

/*
  Translate "\\040" to SPACE, etc.
 */
530
static void
531 532
gfig_name_decode (gchar       *dest,
		  const gchar *src)
Manish Singh's avatar
Manish Singh committed
533
{
534 535
  gint  cnt = MAX_LOAD_LINE - 1;
  guint tmp;
Manish Singh's avatar
Manish Singh committed
536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557

  while (*src && cnt--)
    {
      if (*src == '\\' && *(src+1) && *(src+2) && *(src+3))
	{
	  sscanf (src+1, "%3o", &tmp);
	  *dest++ = tmp;
	  src += 4;
	}
      else
	*dest++ = *src++;
    }
  *dest = '\0';
}


/*
 * Load all gfig, which are founded in gfig-path-list, into gfig_list.
 * gfig-path-list must be initialized first. (plug_in_parse_gfig_path ())
 * based on code from Gflare.
 */

558 559
static gint
gfig_list_pos (GFigObj *gfig)
Manish Singh's avatar
Manish Singh committed
560
{
561 562
  GFigObj *g;
  gint n;
Manish Singh's avatar
Manish Singh committed
563 564 565
  GList *tmp;

  n = 0;
566

567
  for (tmp = gfig_list; tmp; tmp = g_list_next (tmp))
Manish Singh's avatar
Manish Singh committed
568 569
    {
      g = tmp->data;
570

Manish Singh's avatar
Manish Singh committed
571 572
      if (strcmp (gfig->draw_name, g->draw_name) <= 0)
	break;
573

Manish Singh's avatar
Manish Singh committed
574 575
      n++;
    }
576
  return n;
Manish Singh's avatar
Manish Singh committed
577 578
}

579 580 581 582
/*
 *	Insert gfigs in alphabetical order
 */

583 584
static gint
gfig_list_insert (GFigObj *gfig)
Manish Singh's avatar
Manish Singh committed
585
{
586
  gint n;
Manish Singh's avatar
Manish Singh committed
587

588
  n = gfig_list_pos (gfig);
Manish Singh's avatar
Manish Singh committed
589 590 591 592 593 594

  gfig_list = g_list_insert (gfig_list, gfig, n);

  return n;
}

595 596
static void
gfig_free (GFigObj *gfig)
Manish Singh's avatar
Manish Singh committed
597 598 599
{
  g_assert (gfig != NULL);

600
  free_all_objs (gfig->obj_list);
601 602 603 604 605

  g_free (gfig->name);
  g_free (gfig->filename);
  g_free (gfig->draw_name);

Manish Singh's avatar
Manish Singh committed
606 607 608
  g_free (gfig);
}

609 610
static void
gfig_free_everything (GFigObj *gfig)
Manish Singh's avatar
Manish Singh committed
611 612 613
{
  g_assert (gfig != NULL);

614
  if (gfig->filename)
Manish Singh's avatar
Manish Singh committed
615
    {
616
      remove (gfig->filename);
Manish Singh's avatar
Manish Singh committed
617
    }
618
  gfig_free (gfig);
Manish Singh's avatar
Manish Singh committed
619 620
}

621 622
static void
gfig_list_free_all (void)
Manish Singh's avatar
Manish Singh committed
623
{
624
  g_list_foreach (gfig_list, (GFunc) gfig_free, NULL);
Manish Singh's avatar
Manish Singh committed
625 626 627 628
  g_list_free (gfig_list);
  gfig_list = NULL;
}

629
static void
630 631
gfig_list_load_one (const GimpDatafileData *file_data,
                    gpointer                user_data)
Manish Singh's avatar
Manish Singh committed
632
{
633
  GFigObj *gfig;
Manish Singh's avatar
Manish Singh committed
634

635
  gfig = gfig_load (file_data->filename, file_data->basename);
Manish Singh's avatar
Manish Singh committed
636

637
  if (gfig)
Manish Singh's avatar
Manish Singh committed
638
    {
639 640 641
      /* Read only ?*/
      if (access (file_data->filename, W_OK))
        gfig->obj_status |= GFIG_READONLY;
Manish Singh's avatar
Manish Singh committed
642

643 644 645
      gfig_list_insert (gfig);
    }
}
Manish Singh's avatar
Manish Singh committed
646

647 648 649 650 651 652
static void
gfig_list_load_all (const gchar *path)
{
  /*  Make sure to clear any existing gfigs  */
  current_obj = pic_obj = NULL;
  gfig_list_free_all ();
Manish Singh's avatar
Manish Singh committed
653

654 655 656
  gimp_datafiles_read_directories (path, G_FILE_TEST_EXISTS,
                                   gfig_list_load_one,
                                   NULL);
Manish Singh's avatar
Manish Singh committed
657

658
  if (! gfig_list)
Manish Singh's avatar
Manish Singh committed
659
    {
660 661
      GFigObj *gfig;

Manish Singh's avatar
Manish Singh committed
662
      /* lets have at least one! */
663 664 665
      gfig = gfig_new ();
      gfig->draw_name = g_strdup (_("First Gfig"));
      gfig_list_insert (gfig);
Manish Singh's avatar
Manish Singh committed
666 667
    }

668
  pic_obj = current_obj = gfig_list->data;  /* set to first entry */
Manish Singh's avatar
Manish Singh committed
669 670
}

671 672
static GFigObj *
gfig_new (void)
Manish Singh's avatar
Manish Singh committed
673
{
674
  return g_new0 (GFigObj, 1);
Manish Singh's avatar
Manish Singh committed
675 676
}

677 678 679 680
static void
gfig_load_objs (GFigObj *gfig,
		gint     load_count,
		FILE    *fp)
Manish Singh's avatar
Manish Singh committed
681
{
682
  Dobject *obj;
Manish Singh's avatar
Manish Singh committed
683 684 685
  gchar load_buf[MAX_LOAD_LINE];

  /* Loading object */
686
  /*kill (getpid (), 19);*/
Manish Singh's avatar
Manish Singh committed
687
  /* Read first line */
688
  while (load_count-- > 0)
Manish Singh's avatar
Manish Singh committed
689 690
    {
      obj = NULL;
691 692 693
      get_line (load_buf, MAX_LOAD_LINE, fp, 0);

      if (!strcmp (load_buf, "<LINE>"))
Manish Singh's avatar
Manish Singh committed
694
	{
695
	  obj = d_load_line (fp);
Manish Singh's avatar
Manish Singh committed
696
	}
697
      else if (!strcmp (load_buf, "<CIRCLE>"))
Manish Singh's avatar
Manish Singh committed
698
	{
699
	  obj = d_load_circle (fp);
Manish Singh's avatar
Manish Singh committed
700
	}
701
      else if (!strcmp (load_buf, "<ELLIPSE>"))
Manish Singh's avatar
Manish Singh committed
702
	{
703
	  obj = d_load_ellipse (fp);
Manish Singh's avatar
Manish Singh committed
704
	}
705
      else if (!strcmp (load_buf, "<POLY>"))
Manish Singh's avatar
Manish Singh committed
706
	{
707
	  obj = d_load_poly (fp);
Manish Singh's avatar
Manish Singh committed
708
	}
709
      else if (!strcmp (load_buf, "<STAR>"))
Manish Singh's avatar
Manish Singh committed
710
	{
711
	  obj = d_load_star (fp);
Manish Singh's avatar
Manish Singh committed
712
	}
713
      else if (!strcmp (load_buf, "<SPIRAL>"))
Manish Singh's avatar
Manish Singh committed
714
	{
715
	  obj = d_load_spiral (fp);
Manish Singh's avatar
Manish Singh committed
716
	}
717
      else if (!strcmp (load_buf, "<BEZIER>"))
Manish Singh's avatar
Manish Singh committed
718
	{
719
	  obj = d_load_bezier (fp);
Manish Singh's avatar
Manish Singh committed
720
	}
721
      else if (!strcmp (load_buf, "<ARC>"))
Manish Singh's avatar
Manish Singh committed
722
	{
723
	  obj = d_load_arc (fp);
Manish Singh's avatar
Manish Singh committed
724 725 726
	}
      else
	{
727
	  g_warning ("Unknown obj type file %s line %d\n", gfig->filename, line_no);
Manish Singh's avatar
Manish Singh committed
728
	}
729

730
      if (obj)
Manish Singh's avatar
Manish Singh committed
731
	{
732
	  add_to_all_obj (gfig, obj);
Manish Singh's avatar
Manish Singh committed
733 734 735 736
	}
    }
}

737
static GFigObj *
738 739
gfig_load (const gchar *filename,
           const gchar *name)
Manish Singh's avatar
Manish Singh committed
740
{
741 742 743 744 745 746 747
  GFigObj *gfig;
  FILE    *fp;
  gchar    load_buf[MAX_LOAD_LINE];
  gchar    str_buf[MAX_LOAD_LINE];
  gint     chk_count;
  gint     load_count = 0;

Manish Singh's avatar
Manish Singh committed
748 749 750
  g_assert (filename != NULL);

#ifdef DEBUG
751
  printf ("Loading %s (%s)\n", filename, name);
Manish Singh's avatar
Manish Singh committed
752 753 754 755 756 757 758 759 760
#endif /* DEBUG */

  fp = fopen (filename, "r");
  if (!fp)
    {
      g_warning ("Error opening: %s", filename);
      return NULL;
    }

761
  gfig = gfig_new ();
Manish Singh's avatar
Manish Singh committed
762

763 764
  gfig->name = g_strdup (name);
  gfig->filename = g_strdup (filename);
Manish Singh's avatar
Manish Singh committed
765 766 767 768 769 770 771 772


  /* HEADER
   * draw_name
   * version
   * obj_list
   */

773
  get_line (load_buf, MAX_LOAD_LINE, fp, 1);
Manish Singh's avatar
Manish Singh committed
774

775
  if (strncmp (GFIG_HEADER, load_buf, strlen (load_buf)))
Manish Singh's avatar
Manish Singh committed
776
    {
777 778
      g_message ("File '%s' is not a gfig file", gfig->filename);
      return NULL;
Manish Singh's avatar
Manish Singh committed
779
    }
780

781 782 783 784
  get_line (load_buf, MAX_LOAD_LINE, fp, 0);
  sscanf (load_buf, "Name: %100s", str_buf);
  gfig_name_decode (load_buf, str_buf);
  gfig->draw_name = g_strdup (load_buf);
Manish Singh's avatar
Manish Singh committed
785

786
  get_line (load_buf, MAX_LOAD_LINE, fp, 0);
787 788
  if (strncmp (load_buf, "Version: ", 9) == 0)
    gfig->version = g_ascii_strtod (load_buf + 9, NULL);
Manish Singh's avatar
Manish Singh committed
789

790 791
  get_line (load_buf, MAX_LOAD_LINE, fp, 0);
  sscanf (load_buf, "ObjCount: %d", &load_count);
Manish Singh's avatar
Manish Singh committed
792

793
  if (load_options (gfig, fp))
Manish Singh's avatar
Manish Singh committed
794
    {
795 796 797
      g_message ("File '%s' corrupt file - Line %d Option section incorrect",
		 filename, line_no);
      return NULL;
Manish Singh's avatar
Manish Singh committed
798 799
    }

800
  /*return (NULL);*/
Manish Singh's avatar
Manish Singh committed
801

802
  gfig_load_objs (gfig, load_count, fp);
Manish Singh's avatar
Manish Singh committed
803 804

  /* Check count ? */
805

806
  chk_count = gfig_obj_counts (gfig->obj_list);
Manish Singh's avatar
Manish Singh committed
807

808
  if (chk_count != load_count)
Manish Singh's avatar
Manish Singh committed
809
    {
810 811 812
      g_message ("File '%s' corrupt file - Line %d Object count to small",
		 filename, line_no);
      return NULL;
Manish Singh's avatar
Manish Singh committed
813 814
    }

815
  fclose (fp);
Manish Singh's avatar
Manish Singh committed
816

817
  if (!pic_obj)
Manish Singh's avatar
Manish Singh committed
818 819 820 821
    pic_obj = gfig;

  gfig->obj_status = GFIG_OK;

822
  return gfig;
Manish Singh's avatar
Manish Singh committed
823 824
}

825 826
static void
save_options (FILE *fp)
Manish Singh's avatar
Manish Singh committed
827 828
{
  /* Save options */
829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850
  fprintf (fp, "<OPTIONS>\n");
  fprintf (fp, "GridSpacing: %d\n", selvals.opts.gridspacing);
  if (selvals.opts.gridtype == RECT_GRID)
    fprintf (fp, "GridType: RECT_GRID\n");
  else if (selvals.opts.gridtype == POLAR_GRID)
    fprintf (fp, "GridType: POLAR_GRID\n");
  else if (selvals.opts.gridtype == ISO_GRID)
    fprintf (fp, "GridType: ISO_GRID\n");
  else fprintf (fp, "GridType: RECT_GRID\n"); /* If in doubt, default to RECT_GRID */
  fprintf (fp, "DrawGrid: %s\n", (selvals.opts.drawgrid)?"TRUE":"FALSE");
  fprintf (fp, "Snap2Grid: %s\n", (selvals.opts.snap2grid)?"TRUE":"FALSE");
  fprintf (fp, "LockOnGrid: %s\n", (selvals.opts.lockongrid)?"TRUE":"FALSE");
  /*  fprintf (fp, "ShowImage: %s\n", (selvals.opts.showimage)?"TRUE":"FALSE");*/
  fprintf (fp, "ShowControl: %s\n", (selvals.opts.showcontrol)?"TRUE":"FALSE");
  fprintf (fp, "</OPTIONS>\n");
}

static gint
load_bool (gchar *opt_buf,
	   gint  *toset)
{
  if (!strcmp (opt_buf, "TRUE"))
Manish Singh's avatar
Manish Singh committed
851
    *toset = 1;
852
  else if (!strcmp (opt_buf, "FALSE"))
Manish Singh's avatar
Manish Singh committed
853 854
    *toset = 0;
  else
855
    return (-1);
Manish Singh's avatar
Manish Singh committed
856

857
  return (0);
Manish Singh's avatar
Manish Singh committed
858 859 860
}

static void
861
update_options (GFigObj *old_obj)
Manish Singh's avatar
Manish Singh committed
862 863
{
  /* Save old vals */
864
  if (selvals.opts.gridspacing != old_obj->opts.gridspacing)
Manish Singh's avatar
Manish Singh committed
865 866 867
    {
      old_obj->opts.gridspacing = selvals.opts.gridspacing;
    }
868
  if (selvals.opts.gridtype != old_obj->opts.gridtype)
Manish Singh's avatar
Manish Singh committed
869 870 871
    {
      old_obj->opts.gridtype = selvals.opts.gridtype;
    }
872
  if (selvals.opts.drawgrid != old_obj->opts.drawgrid)