channels-commands.c 17.2 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
/* The GIMP -- an image manipulation program
 * Copyright (C) 1995 Spencer Kimball and Peter Mattis
 *
 * 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
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include "config.h"

Hans Breuer's avatar
Hans Breuer committed
21 22
#include <string.h>

23 24 25 26 27
#include <gtk/gtk.h>

#include "libgimpcolor/gimpcolor.h"
#include "libgimpwidgets/gimpwidgets.h"

28
#include "gui-types.h"
29

Michael Natterer's avatar
Michael Natterer committed
30
#include "core/gimp.h"
31
#include "core/gimpchannel.h"
32
#include "core/gimpcontext.h"
33 34
#include "core/gimpimage.h"
#include "core/gimpimage-mask.h"
35
#include "core/gimpimage-mask-select.h"
36 37
#include "core/gimplist.h"

38
#include "widgets/gimpcolorpanel.h"
39
#include "widgets/gimpitemfactory.h"
40
#include "widgets/gimpviewabledialog.h"
Michael Natterer's avatar
Michael Natterer committed
41
#include "widgets/gimpwidgets-utils.h"
42 43 44

#include "channels-commands.h"

45 46
#include "undo.h"

47 48 49
#include "libgimp/gimpintl.h"


50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71
/*  local function prototypes  */

static void   channels_opacity_update (GtkAdjustment   *adjustment,
                                       gpointer         data);
static void   channels_color_changed  (GimpColorButton *button,
                                       gpointer         data);


#define return_if_no_image(gimage) \
  gimage = (GimpImage *) gimp_widget_get_callback_context (widget); \
  if (! GIMP_IS_IMAGE (gimage)) \
    gimage = gimp_context_get_image (gimp_get_user_context (GIMP (data))); \
  if (! gimage) \
    return

#define return_if_no_channel(gimage,channel) \
  return_if_no_image (gimage); \
  channel = gimp_image_get_active_channel (gimage); \
  if (! channel) \
    return


72 73
/*  public functions  */

74 75 76 77 78
void
channels_new_channel_cmd_callback (GtkWidget *widget,
				   gpointer   data)
{
  GimpImage *gimage;
79
  return_if_no_image (gimage);
80

Michael Natterer's avatar
Michael Natterer committed
81
  channels_new_channel_query (gimage, NULL, TRUE);
82 83 84 85 86 87
}

void
channels_raise_channel_cmd_callback (GtkWidget *widget,
				     gpointer   data)
{
88 89 90
  GimpImage   *gimage;
  GimpChannel *active_channel;
  return_if_no_channel (gimage, active_channel);
91

92
  gimp_image_raise_channel (gimage, active_channel);
93
  gimp_image_flush (gimage);
94 95 96 97 98 99
}

void
channels_lower_channel_cmd_callback (GtkWidget *widget,
				     gpointer   data)
{
100 101 102
  GimpImage   *gimage;
  GimpChannel *active_channel;
  return_if_no_channel (gimage, active_channel);
103

104
  gimp_image_lower_channel (gimage, active_channel);
105
  gimp_image_flush (gimage);
106 107 108 109 110 111 112 113 114
}

void
channels_duplicate_channel_cmd_callback (GtkWidget *widget,
					 gpointer   data)
{
  GimpImage   *gimage;
  GimpChannel *active_channel;
  GimpChannel *new_channel;
115
  return_if_no_channel (gimage, active_channel);
116

117 118 119 120
  new_channel = gimp_channel_copy (active_channel,
                                   G_TYPE_FROM_INSTANCE (active_channel),
                                   TRUE);
  gimp_image_add_channel (gimage, new_channel, -1);
121
  gimp_image_flush (gimage);
122 123 124 125 126 127 128 129
}

void
channels_delete_channel_cmd_callback (GtkWidget *widget,
				      gpointer   data)
{
  GimpImage   *gimage;
  GimpChannel *active_channel;
130
  return_if_no_channel (gimage, active_channel);
131

132
  gimp_image_remove_channel (gimage, active_channel);
133
  gimp_image_flush (gimage);
134 135
}

136
static void
137 138 139
channels_channel_to_sel (GtkWidget      *widget,
                         gpointer        data,
                         GimpChannelOps  op)
140 141 142
{
  GimpImage   *gimage;
  GimpChannel *active_channel;
143 144 145 146
  return_if_no_channel (gimage, active_channel);

  gimp_image_mask_select_channel (gimage,
                                  active_channel,
147
                                  0, 0,
148 149
                                  op,
                                  FALSE, 0, 0);
150
  gimp_image_flush (gimage);
151 152
}

153 154 155 156
void
channels_channel_to_sel_cmd_callback (GtkWidget *widget,
				      gpointer   data)
{
157
  channels_channel_to_sel (widget, data, GIMP_CHANNEL_OP_REPLACE);
158 159
}

160 161 162 163
void
channels_add_channel_to_sel_cmd_callback (GtkWidget *widget,
					  gpointer   data)
{
164
  channels_channel_to_sel (widget, data, GIMP_CHANNEL_OP_ADD);
165 166 167 168 169 170
}

void
channels_sub_channel_from_sel_cmd_callback (GtkWidget *widget,
					    gpointer   data)
{
171
  channels_channel_to_sel (widget, data, GIMP_CHANNEL_OP_SUBTRACT);
172 173 174 175 176 177
}

void
channels_intersect_channel_with_sel_cmd_callback (GtkWidget *widget,
						  gpointer   data)
{
178
  channels_channel_to_sel (widget, data, GIMP_CHANNEL_OP_INTERSECT);
179 180 181 182 183 184 185 186
}

void
channels_edit_channel_attributes_cmd_callback (GtkWidget *widget,
					       gpointer   data)
{
  GimpImage   *gimage;
  GimpChannel *active_channel;
187
  return_if_no_channel (gimage, active_channel);
188

189
  channels_edit_channel_query (active_channel);
190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233
}


/**********************************/
/*  The new channel query dialog  */
/**********************************/

typedef struct _NewChannelOptions NewChannelOptions;

struct _NewChannelOptions
{
  GtkWidget  *query_box;
  GtkWidget  *name_entry;
  GtkWidget  *color_panel;

  GimpImage  *gimage;
};

static gchar   *channel_name  = NULL;
static GimpRGB  channel_color = { 0.0, 0.0, 0.0, 0.5 };


static void
new_channel_query_ok_callback (GtkWidget *widget,
			       gpointer   data)
{
  NewChannelOptions *options;
  GimpChannel       *new_channel;
  GimpImage         *gimage;

  options = (NewChannelOptions *) data;

  if (channel_name)
    g_free (channel_name);
  channel_name = g_strdup (gtk_entry_get_text (GTK_ENTRY (options->name_entry)));

  if ((gimage = options->gimage))
    {
      gimp_color_button_get_color (GIMP_COLOR_BUTTON (options->color_panel),
				   &channel_color);
      new_channel = gimp_channel_new (gimage, gimage->width, gimage->height,
				      channel_name,
				      &channel_color);

Michael Natterer's avatar
Michael Natterer committed
234
      gimp_drawable_fill_by_type (GIMP_DRAWABLE (new_channel),
Michael Natterer's avatar
Michael Natterer committed
235
				  gimp_get_user_context (gimage->gimp),
236
				  GIMP_TRANSPARENT_FILL);
237 238

      gimp_image_add_channel (gimage, new_channel, -1);
239
      gimp_image_flush (gimage);
240 241 242 243 244 245
    }

  gtk_widget_destroy (options->query_box);
}

void
246
channels_new_channel_query (GimpImage   *gimage,
Michael Natterer's avatar
Michael Natterer committed
247 248
                            GimpChannel *template,
                            gboolean     interactive)
249 250 251 252 253 254 255
{
  NewChannelOptions *options;
  GtkWidget         *hbox;
  GtkWidget         *vbox;
  GtkWidget         *table;
  GtkObject         *opacity_scale_data;

256 257 258
  g_return_if_fail (GIMP_IS_IMAGE (gimage));
  g_return_if_fail (! template || GIMP_IS_CHANNEL (template));

Michael Natterer's avatar
Michael Natterer committed
259
  if (template || ! interactive)
260 261 262 263
    {
      GimpChannel *new_channel;
      gint         width, height;
      gint         off_x, off_y;
Michael Natterer's avatar
Michael Natterer committed
264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280
      GimpRGB      color;

      if (template)
        {
          width  = gimp_drawable_width  (GIMP_DRAWABLE (template));
          height = gimp_drawable_height (GIMP_DRAWABLE (template));
          gimp_drawable_offsets (GIMP_DRAWABLE (template), &off_x, &off_y);
          color  = template->color;
        }
      else
        {
          width  = gimp_image_get_width (gimage);
          height = gimp_image_get_height (gimage);
          off_x  = 0;
          off_y  = 0;
          gimp_rgba_set (&color, 0.0, 0.0, 0.0, 0.5);
        }
281

Michael Natterer's avatar
Michael Natterer committed
282
      undo_push_group_start (gimage, EDIT_PASTE_UNDO_GROUP);
283 284 285 286

      new_channel = gimp_channel_new (gimage,
                                      width, height,
                                      _("Empty Channel Copy"),
Michael Natterer's avatar
Michael Natterer committed
287 288 289 290 291 292 293 294 295
                                      &color);

      if (template)
        {
          gimp_drawable_fill_by_type (GIMP_DRAWABLE (new_channel),
                                      gimp_get_user_context (gimage->gimp),
                                      GIMP_TRANSPARENT_FILL);
          gimp_channel_translate (new_channel, off_x, off_y, FALSE);
        }
296 297 298 299 300 301 302

      gimp_image_add_channel (gimage, new_channel, -1);

      undo_push_group_end (gimage);
      return;
    }

303 304 305 306 307 308 309
  /*  the new options structure  */
  options = g_new (NewChannelOptions, 1);
  options->gimage      = gimage;
  options->color_panel = gimp_color_panel_new (_("New Channel Color"),
					       &channel_color,
					       GIMP_COLOR_AREA_LARGE_CHECKS,
					       48, 64);
310 311
  gimp_color_panel_set_context (GIMP_COLOR_PANEL (options->color_panel),
                                gimp_get_user_context (gimage->gimp));
312 313 314
  
  /*  The dialog  */
  options->query_box =
315 316 317 318 319 320
    gimp_viewable_dialog_new (GIMP_VIEWABLE (gimage),
                              _("New Channel"), "new_channel_options",
                              GTK_STOCK_NEW,
                              _("New Channel Options"),
                              gimp_standard_help_func,
                              "dialogs/channels/new_channel.html",
321

322 323
                              GTK_STOCK_CANCEL, gtk_widget_destroy,
                              NULL, 1, NULL, FALSE, TRUE,
324

325 326
                              GTK_STOCK_OK, new_channel_query_ok_callback,
                              options, NULL, NULL, TRUE, FALSE,
327

328
                              NULL);
329

330 331 332
  g_object_weak_ref (G_OBJECT (options->query_box),
		     (GWeakNotify) g_free,
		     options);
333 334 335 336 337 338 339 340 341 342 343 344 345

  /*  The main hbox  */
  hbox = gtk_hbox_new (FALSE, 2);
  gtk_container_set_border_width (GTK_CONTAINER (hbox), 4);
  gtk_container_add (GTK_CONTAINER (GTK_DIALOG (options->query_box)->vbox),
		     hbox);

  /*  The vbox  */
  vbox = gtk_vbox_new (FALSE, 2);
  gtk_box_pack_start (GTK_BOX (hbox), vbox, TRUE, TRUE, 0);

  /*  The table  */
  table = gtk_table_new (2, 3, FALSE);
346
  gtk_table_set_col_spacings (GTK_TABLE (table), 2);
347 348 349
  gtk_table_set_row_spacings (GTK_TABLE (table), 2);
  gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);

350
  /*  The name entry  */
351 352 353
  options->name_entry = gtk_entry_new ();
  gtk_entry_set_text (GTK_ENTRY (options->name_entry),
		      (channel_name ? channel_name : _("New Channel")));
354 355 356
  gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
			     _("Channel Name:"), 1.0, 0.5,
			     options->name_entry, 2, FALSE);
357 358

  /*  The opacity scale  */
359
  opacity_scale_data = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
360
					     _("Fill Opacity:"), 100, -1,
361 362 363 364
					     channel_color.a * 100.0,
					     0.0, 100.0, 1.0, 10.0, 1,
					     TRUE, 0.0, 0.0,
					     NULL, NULL);
365

366 367 368 369
  g_signal_connect (G_OBJECT (opacity_scale_data), "value_changed",
		    G_CALLBACK (channels_opacity_update),
		    options->color_panel);

370 371 372 373 374
  /*  The color panel  */
  gtk_box_pack_start (GTK_BOX (hbox), options->color_panel,
		      TRUE, TRUE, 0);
  gtk_widget_show (options->color_panel);

375 376 377 378
  g_signal_connect (G_OBJECT (options->color_panel), "color_changed",
		    G_CALLBACK (channels_color_changed),
		    opacity_scale_data);

379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412
  gtk_widget_show (table);
  gtk_widget_show (vbox);
  gtk_widget_show (hbox);
  gtk_widget_show (options->query_box);
}

/****************************************/
/*  The edit channel attributes dialog  */
/****************************************/

typedef struct _EditChannelOptions EditChannelOptions;

struct _EditChannelOptions
{
  GtkWidget     *query_box;
  GtkWidget     *name_entry;
  GtkWidget     *color_panel;

  GimpChannel   *channel;
  GimpImage     *gimage;
};

static void
edit_channel_query_ok_callback (GtkWidget *widget,
				gpointer   data)
{
  EditChannelOptions *options;
  GimpChannel        *channel;

  options = (EditChannelOptions *) data;
  channel = options->channel;

  if (options->gimage)
    {
413 414 415 416 417 418 419 420 421 422 423
      const gchar *new_name;
      GimpRGB      color;

      new_name = gtk_entry_get_text (GTK_ENTRY (options->name_entry));

      if (strcmp (new_name, gimp_object_get_name (GIMP_OBJECT (channel))))
        {
          undo_push_item_rename (options->gimage, GIMP_ITEM (channel));

          gimp_object_set_name (GIMP_OBJECT (channel), new_name);
        }
424 425 426 427 428 429

      gimp_color_button_get_color (GIMP_COLOR_BUTTON (options->color_panel),
				   &color);

      if (gimp_rgba_distance (&color, &channel->color) > 0.0001)
	{
Michael Natterer's avatar
Michael Natterer committed
430
	  gimp_channel_set_color (channel, &color);
431

432
          gimp_image_flush (options->gimage);
433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450
	}
    }

  gtk_widget_destroy (options->query_box);
}

void
channels_edit_channel_query (GimpChannel *channel)
{
  EditChannelOptions *options;
  GtkWidget          *hbox;
  GtkWidget          *vbox;
  GtkWidget          *table;
  GtkObject          *opacity_scale_data;

  options = g_new0 (EditChannelOptions, 1);

  options->channel = channel;
451
  options->gimage  = gimp_item_get_image (GIMP_ITEM (channel));
452 453 454 455 456 457 458

  channel_color = channel->color;

  options->color_panel = gimp_color_panel_new (_("Edit Channel Color"),
					       &channel_color,
					       GIMP_COLOR_AREA_LARGE_CHECKS,
					       48, 64);
459 460
  gimp_color_panel_set_context (GIMP_COLOR_PANEL (options->color_panel),
                                gimp_get_user_context (options->gimage->gimp));
461 462 463

  /*  The dialog  */
  options->query_box =
464 465 466 467 468 469
    gimp_viewable_dialog_new (GIMP_VIEWABLE (channel),
                              _("Channel Attributes"), "edit_channel_attributes",
                              GIMP_STOCK_EDIT,
                              _("Edit Channel Attributes"),
                              gimp_standard_help_func,
                              "dialogs/channels/edit_channel_attributes.html",
470

471 472
                              GTK_STOCK_CANCEL, gtk_widget_destroy,
                              NULL, 1, NULL, FALSE, TRUE,
473

474 475
                              GTK_STOCK_OK, edit_channel_query_ok_callback,
                              options, NULL, NULL, TRUE, FALSE,
476

477
                              NULL);
478

479 480 481
  g_object_weak_ref (G_OBJECT (options->query_box),
		     (GWeakNotify) g_free,
		     options);
482 483 484 485 486 487 488 489 490 491 492 493 494

  /*  The main hbox  */
  hbox = gtk_hbox_new (FALSE, 2);
  gtk_container_set_border_width (GTK_CONTAINER (hbox), 4);
  gtk_container_add (GTK_CONTAINER (GTK_DIALOG (options->query_box)->vbox),
		     hbox);

  /*  The vbox  */
  vbox = gtk_vbox_new (FALSE, 2);
  gtk_box_pack_start (GTK_BOX (hbox), vbox, TRUE, TRUE, 0);

  /*  The table  */
  table = gtk_table_new (2, 3, FALSE);
495
  gtk_table_set_col_spacings (GTK_TABLE (table), 2);
496 497 498 499 500 501 502
  gtk_table_set_row_spacings (GTK_TABLE (table), 2);
  gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);

  /*  The name entry  */
  options->name_entry = gtk_entry_new ();
  gtk_entry_set_text (GTK_ENTRY (options->name_entry),
		      gimp_object_get_name (GIMP_OBJECT (channel)));
503 504 505
  gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
			     _("Channel Name:"), 1.0, 0.5,
			     options->name_entry, 2, FALSE);
506 507

  /*  The opacity scale  */
508
  opacity_scale_data = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
509
					     _("Fill Opacity:"), 100, -1,
510 511 512 513
					     channel_color.a * 100.0,
					     0.0, 100.0, 1.0, 10.0, 1,
					     TRUE, 0.0, 0.0,
					     NULL, NULL);
514

515 516 517 518
  g_signal_connect (G_OBJECT (opacity_scale_data), "value_changed",
		    G_CALLBACK (channels_opacity_update),
		    options->color_panel);

519 520 521 522 523
  /*  The color panel  */
  gtk_box_pack_start (GTK_BOX (hbox), options->color_panel,
		      TRUE, TRUE, 0);
  gtk_widget_show (options->color_panel);

524 525 526 527
  g_signal_connect (G_OBJECT (options->color_panel), "color_changed",
		    G_CALLBACK (channels_color_changed),
		    opacity_scale_data);		      

528 529 530 531 532
  gtk_widget_show (table);
  gtk_widget_show (vbox);
  gtk_widget_show (hbox);
  gtk_widget_show (options->query_box);
}
533 534

void
535 536
channels_menu_update (GtkItemFactory *factory,
                      gpointer        data)
537
{
538
  GimpImage   *gimage;
539 540 541 542 543 544
  GimpChannel *channel;
  gboolean     fs;
  GList       *list;
  GList       *next = NULL;
  GList       *prev = NULL;

545
  gimage = GIMP_IMAGE (data);
546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563

  channel = gimp_image_get_active_channel (gimage);

  fs = (gimp_image_floating_sel (gimage) != NULL);

  for (list = GIMP_LIST (gimage->channels)->list;
       list;
       list = g_list_next (list))
    {
      if (channel == (GimpChannel *) list->data)
	{
	  prev = g_list_previous (list);
	  next = g_list_next (list);
	  break;
	}
    }

#define SET_SENSITIVE(menu,condition) \
564 565 566 567 568 569 570 571 572 573 574 575
        gimp_item_factory_set_sensitive (factory, menu, (condition) != 0)

  SET_SENSITIVE ("/New Channel...",             !fs);
  SET_SENSITIVE ("/Raise Channel",              !fs && channel && prev);
  SET_SENSITIVE ("/Lower Channel",              !fs && channel && next);
  SET_SENSITIVE ("/Duplicate Channel",          !fs && channel);
  SET_SENSITIVE ("/Channel to Selection",       !fs && channel);
  SET_SENSITIVE ("/Add to Selection",           !fs && channel);
  SET_SENSITIVE ("/Subtract from Selection",    !fs && channel);
  SET_SENSITIVE ("/Intersect with Selection",   !fs && channel);
  SET_SENSITIVE ("/Delete Channel",             !fs && channel);
  SET_SENSITIVE ("/Edit Channel Attributes...", !fs && channel);
576

577
#undef SET_SENSITIVE
578
}
579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604


/*  private functions  */

static void
channels_opacity_update (GtkAdjustment *adjustment,
			 gpointer       data)
{
  GimpRGB  color;

  gimp_color_button_get_color (GIMP_COLOR_BUTTON (data), &color);
  gimp_rgb_set_alpha (&color, adjustment->value / 100.0);
  gimp_color_button_set_color (GIMP_COLOR_BUTTON (data), &color);
}

static void
channels_color_changed (GimpColorButton *button,
			gpointer         data)
{
  GtkAdjustment *adj = GTK_ADJUSTMENT (data);
  GimpRGB        color;

  gimp_color_button_get_color (button, &color);
  gtk_adjustment_set_value (adj, color.a * 100.0);
}