gtk/color_edit_dlg.c

   1 /* color_edit_dlg.c
   2  * Definitions for single color filter edit dialog boxes
   3  *
   4  * $Id$
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  23  */
  24
  25 #ifdef HAVE_CONFIG_H
  26 # include "config.h"
  27 #endif
  28
  29 #include <string.h>
  30
  31 #include <gtk/gtk.h>
  32
  33 #include <epan/packet.h>
  34
  35 #include "../color.h"
  36 #include "../color_filters.h"
  37 #include "../simple_dialog.h"
  38
  39 #include "gtk/color_dlg.h"
  40 #include "gtk/color_utils.h"
  41 #include "gtk/dlg_utils.h"
  42 #include "gtk/gui_utils.h"
  43 #include "gtk/stock_icons.h"
  44 #include "gtk/filter_dlg.h"
  45 #include "gtk/dfilter_expr_dlg.h"
  46 #include "gtk/color_edit_dlg.h"
  47 #include "gtk/filter_autocomplete.h"
  48
  49
  50 #define BUTTON_SIZE_X -1
  51 #define BUTTON_SIZE_Y -1
  52
  53
  54 static void edit_color_filter_destroy_cb(GObject *object, gpointer user_data);
  55 static void edit_color_filter_fg_cb(GtkButton *button, gpointer user_data);
  56 static void edit_color_filter_bg_cb(GtkButton *button, gpointer user_data);
  57 /*
  58   static void edit_disabled_cb_cb(GtkButton *button, gpointer user_data);
  59 */
  60 static void edit_color_filter_ok_cb(GtkButton *button, gpointer user_data);
  61 static void edit_new_color_filter_cancel_cb(GtkButton *button, gpointer user_data);
  62
  63 static GtkWidget* color_sel_win_new(color_filter_t *colorf, gboolean);
  64 static void color_sel_ok_cb(GtkButton *button, gpointer user_data);
  65 static void color_sel_cancel_cb(GtkObject *object, gpointer user_data);
  66
  67
  68 #define COLOR_FILTERS_CL        "color_filters_cl"
  69 #define COLOR_FILTER            "color_filter"
  70 #define COLOR_FILTER_NAME_TE    "color_filter_name_te"
  71 #define COLOR_FILTER_TEXT_TE    "color_filter_text_te"
  72 #define COLOR_SELECTION_FG      "color_selection_fg"
  73 #define COLOR_SELECTION_BG      "color_selection_bg"
  74 #define COLOR_SELECTION_PARENT  "color_selection_parent"
  75
  76 /* XXX - we don't forbid having more than one "Edit color filter" dialog
  77    open, so these shouldn't be global. */
  78 static GtkWidget *filt_name_entry;
  79 static GtkWidget *filt_text_entry;
  80 static GtkWidget *disabled_cb;
  81
  82
  83 static void
  84 filter_expr_cb(GtkWidget *w _U_, gpointer filter_te)
  85 {
  86
  87   dfilter_expr_dlg_new(GTK_WIDGET(filter_te));
  88 }
  89
  90
  91 /* Create an "Edit Color Filter" dialog for a given color filter, and
  92    associate it with that color filter. */
  93 void
  94 edit_color_filter_dialog(GtkWidget *color_filters,
  95                          gboolean is_new_filter)
  96 {
  97   color_filter_t *colorf;
  98   GtkWidget      *edit_dialog;
  99   GtkWidget      *dialog_vbox;
 100   GtkTooltips    *tooltips;
 101   GdkColor       bg_color, fg_color;
 102
 103   GtkWidget *filter_fr;
 104   GtkWidget *filter_fr_vbox;
 105   GtkWidget *filter_name_hbox;
 106   GtkWidget *color_filter_name;
 107   GtkWidget *filter_string_hbox;
 108   GtkWidget *add_expression_bt;
 109   GtkWidget *color_filter_text;
 110
 111   GtkWidget *settings_hbox;
 112
 113   GtkWidget *colorize_fr;
 114   GtkWidget *colorize_hbox;
 115   GtkWidget *colorize_filter_fg;
 116   GtkWidget *colorize_filter_bg;
 117
 118   GtkWidget *status_fr;
 119   GtkWidget *status_vbox;
 120
 121   GtkWidget *bbox;
 122   GtkWidget *edit_color_filter_ok;
 123   GtkWidget *edit_color_filter_cancel;
 124
 125   GtkTreeModel     *model;
 126   GtkTreeIter       iter;
 127
 128   model = gtk_tree_view_get_model(GTK_TREE_VIEW(color_filters));
 129
 130   gtk_tree_model_iter_nth_child(model, &iter, NULL, color_dlg_row_selected);
 131   gtk_tree_model_get(model, &iter, 5, &colorf, -1);
 132
 133   if (colorf->edit_dialog != NULL) {
 134     /* There's already an edit box open for this filter; reactivate it. */
 135     reactivate_window(colorf->edit_dialog);
 136     return;
 137   }
 138
 139   tooltips = gtk_tooltips_new ();
 140
 141   /* dialog window */
 142   edit_dialog = dlg_conf_window_new ("Wireshark: Edit Color Filter");
 143   gtk_window_set_default_size(GTK_WINDOW(edit_dialog), 500, -1);
 144   g_object_set_data(G_OBJECT(edit_dialog), "edit_dialog", edit_dialog);
 145   colorf->edit_dialog = edit_dialog;
 146
 147   dialog_vbox = gtk_vbox_new (FALSE, 0);
 148   gtk_container_set_border_width  (GTK_CONTAINER (dialog_vbox), 5);
 149   gtk_container_add (GTK_CONTAINER (edit_dialog), dialog_vbox);
 150
 151   /* Filter frame */
 152   filter_fr = gtk_frame_new("Filter");
 153   gtk_box_pack_start (GTK_BOX (dialog_vbox), filter_fr, FALSE, FALSE, 0);
 154
 155   filter_fr_vbox = gtk_vbox_new (FALSE, 0);
 156   gtk_container_set_border_width  (GTK_CONTAINER (filter_fr_vbox), 5);
 157   gtk_container_add(GTK_CONTAINER(filter_fr), filter_fr_vbox);
 158
 159   /* filter name hbox */
 160   filter_name_hbox = gtk_hbox_new (FALSE, 0);
 161   gtk_box_pack_start (GTK_BOX (filter_fr_vbox), filter_name_hbox, TRUE, FALSE, 3);
 162
 163   color_filter_name = gtk_label_new (("Name: "));
 164   gtk_box_pack_start (GTK_BOX (filter_name_hbox), color_filter_name, FALSE, FALSE, 0);
 165
 166   filt_name_entry = gtk_entry_new ();
 167   gtk_entry_set_text(GTK_ENTRY(filt_name_entry), colorf->filter_name);
 168
 169   color_t_to_gdkcolor(&bg_color, &colorf->bg_color);
 170   color_t_to_gdkcolor(&fg_color, &colorf->fg_color);
 171
 172   gtk_widget_modify_base(filt_name_entry, GTK_STATE_NORMAL, &bg_color);
 173   gtk_widget_modify_text(filt_name_entry, GTK_STATE_NORMAL, &fg_color);
 174
 175   gtk_box_pack_start (GTK_BOX (filter_name_hbox), filt_name_entry, TRUE, TRUE, 0);
 176   gtk_tooltips_set_tip (tooltips, filt_name_entry, ("This is the editable name of the filter. (No @ characters allowed.)"), NULL);
 177
 178
 179   /* filter string hbox */
 180   filter_string_hbox = gtk_hbox_new (FALSE, 0);
 181   gtk_box_pack_start (GTK_BOX (filter_fr_vbox), filter_string_hbox, TRUE, FALSE, 3);
 182
 183   color_filter_text = gtk_label_new (("String: "));
 184   gtk_box_pack_start (GTK_BOX (filter_string_hbox), color_filter_text, FALSE, FALSE, 0);
 185
 186   filt_text_entry = gtk_entry_new ();
 187   g_signal_connect(filt_text_entry, "changed", G_CALLBACK(filter_te_syntax_check_cb), NULL);
 188   g_object_set_data(G_OBJECT(filter_string_hbox), E_FILT_AUTOCOMP_PTR_KEY, NULL);
 189   g_signal_connect(filt_text_entry, "key-press-event", G_CALLBACK (filter_string_te_key_pressed_cb), NULL);
 190   g_signal_connect(edit_dialog, "key-press-event", G_CALLBACK (filter_parent_dlg_key_pressed_cb), NULL);
 191   gtk_entry_set_text(GTK_ENTRY(filt_text_entry), colorf->filter_text);
 192
 193   gtk_box_pack_start (GTK_BOX (filter_string_hbox), filt_text_entry, TRUE, TRUE, 0);
 194   gtk_tooltips_set_tip (tooltips, filt_text_entry, ("This is the editable text of the filter"), NULL);
 195
 196   /* Create the "Add Expression..." button, to pop up a dialog
 197      for constructing filter comparison expressions. */
 198   add_expression_bt = gtk_button_new_from_stock(WIRESHARK_STOCK_ADD_EXPRESSION);
 199   g_signal_connect(add_expression_bt, "clicked", G_CALLBACK(filter_expr_cb), filt_text_entry);
 200   gtk_box_pack_start (GTK_BOX(filter_string_hbox), add_expression_bt, FALSE, FALSE, 3);
 201   gtk_tooltips_set_tip (tooltips, add_expression_bt, ("Add an expression to the filter string"), NULL);
 202
 203   /* Show the (in)validity of the default filter string */
 204   filter_te_syntax_check_cb(filt_text_entry, NULL);
 205
 206   /* settings-hbox for "choose color frame" and "status frame" */
 207   settings_hbox = gtk_hbox_new (FALSE, 0);
 208   gtk_box_pack_start (GTK_BOX (dialog_vbox), settings_hbox, FALSE, FALSE, 0);
 209
 210   /* choose color frame */
 211   colorize_fr = gtk_frame_new("Display Colors");
 212   gtk_box_pack_start (GTK_BOX (settings_hbox), colorize_fr, TRUE, TRUE, 0);
 213
 214   colorize_hbox = gtk_hbox_new (FALSE, 0);
 215   gtk_container_set_border_width  (GTK_CONTAINER (colorize_hbox), 5);
 216   gtk_container_add(GTK_CONTAINER(colorize_fr), colorize_hbox);
 217
 218   colorize_filter_fg = gtk_button_new_with_label (("Foreground Color..."));
 219   gtk_box_pack_start (GTK_BOX (colorize_hbox), colorize_filter_fg, TRUE, FALSE, 0);
 220   gtk_tooltips_set_tip (tooltips, colorize_filter_fg, ("Select foreground color for data display"), NULL);
 221
 222   colorize_filter_bg = gtk_button_new_with_label (("Background Color..."));
 223   gtk_box_pack_start (GTK_BOX (colorize_hbox), colorize_filter_bg, TRUE, FALSE, 0);
 224   gtk_tooltips_set_tip (tooltips, colorize_filter_bg, ("Select background color for data display"), NULL);
 225
 226   /* status frame */
 227   status_fr = gtk_frame_new("Status");
 228   gtk_box_pack_start (GTK_BOX (settings_hbox), status_fr, TRUE, TRUE, 0);
 229
 230   status_vbox = gtk_vbox_new (FALSE, 0);
 231   gtk_container_set_border_width  (GTK_CONTAINER (status_vbox), 5);
 232   gtk_container_add(GTK_CONTAINER(status_fr), status_vbox);
 233
 234   disabled_cb = gtk_check_button_new_with_label("Disabled");
 235   gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(disabled_cb), colorf->disabled);
 236   gtk_box_pack_start (GTK_BOX (status_vbox), disabled_cb, TRUE, FALSE, 0);
 237   gtk_tooltips_set_tip (tooltips, disabled_cb, ("Color rule won't be checked if this box is selected"), NULL);
 238
 239   /* button box */
 240   bbox = dlg_button_row_new(GTK_STOCK_OK, GTK_STOCK_CANCEL, NULL);
 241   gtk_box_pack_start(GTK_BOX(dialog_vbox), bbox, FALSE, FALSE, 0);
 242   gtk_container_set_border_width  (GTK_CONTAINER (bbox), 0);
 243
 244   edit_color_filter_ok = g_object_get_data(G_OBJECT(bbox), GTK_STOCK_OK);
 245   gtk_tooltips_set_tip (tooltips, edit_color_filter_ok, ("Accept filter color change"), NULL);
 246
 247   edit_color_filter_cancel = g_object_get_data(G_OBJECT(bbox), GTK_STOCK_CANCEL);
 248   gtk_tooltips_set_tip (tooltips, edit_color_filter_cancel, ("Reject filter color change"), NULL);
 249
 250   gtk_widget_grab_default(edit_color_filter_ok);
 251
 252   /* signals and such */
 253   g_object_set_data(G_OBJECT(edit_dialog), COLOR_FILTER, colorf);
 254   g_signal_connect(edit_dialog, "destroy", G_CALLBACK(edit_color_filter_destroy_cb), NULL);
 255   g_object_set_data(G_OBJECT(colorize_filter_fg), COLOR_FILTER, colorf);
 256   g_signal_connect(colorize_filter_fg, "clicked", G_CALLBACK(edit_color_filter_fg_cb), NULL);
 257   g_object_set_data(G_OBJECT(colorize_filter_bg), COLOR_FILTER, colorf);
 258   g_signal_connect(colorize_filter_bg, "clicked", G_CALLBACK(edit_color_filter_bg_cb), NULL);
 259   g_object_set_data(G_OBJECT(disabled_cb), COLOR_FILTER, colorf);
 260 /*    g_signal_connect(disabled_cb, "clicked", G_CALLBACK(edit_disabled_cb_cb), NULL);*/
 261   g_object_set_data(G_OBJECT(edit_color_filter_ok), COLOR_FILTERS_CL, color_filters);
 262   g_object_set_data(G_OBJECT(edit_color_filter_ok), COLOR_FILTER, colorf);
 263   g_signal_connect(edit_color_filter_ok, "clicked", G_CALLBACK(edit_color_filter_ok_cb), edit_dialog);
 264
 265   /* set callback to delete new filters if cancel chosen */
 266   if (is_new_filter)
 267   {
 268     g_object_set_data(G_OBJECT(edit_color_filter_cancel), COLOR_FILTERS_CL, color_filters);
 269     g_signal_connect(edit_color_filter_cancel, "clicked",
 270                      G_CALLBACK(edit_new_color_filter_cancel_cb), edit_dialog);
 271   }
 272   /* escape will select cancel */
 273   window_set_cancel_button(edit_dialog, edit_color_filter_cancel, window_cancel_button_cb);
 274
 275   g_signal_connect(edit_dialog, "delete_event", G_CALLBACK(window_delete_event_cb), NULL);
 276
 277   gtk_widget_show_all(edit_dialog);
 278   window_present(edit_dialog);
 279 }
 280
 281 /* Called when the dialog box is being destroyed; destroy any color
 282    selection dialogs opened from this dialog, and null out the pointer
 283    to this dialog. */
 284 static void
 285 edit_color_filter_destroy_cb(GObject *object, gpointer user_data _U_)
 286 {
 287   color_filter_t *colorf;
 288   GtkWidget *color_sel;
 289
 290   colorf = (color_filter_t *)g_object_get_data(G_OBJECT(object), COLOR_FILTER);
 291   colorf->edit_dialog = NULL;
 292
 293   /* Destroy any color selection dialogs this dialog had open. */
 294   color_sel = (GtkWidget *)g_object_get_data(G_OBJECT(object), COLOR_SELECTION_FG);
 295   if (color_sel != NULL)
 296     window_destroy(color_sel);
 297   color_sel = (GtkWidget *)g_object_get_data(G_OBJECT(object), COLOR_SELECTION_BG);
 298   if (color_sel != NULL)
 299     window_destroy(color_sel);
 300 }
 301
 302 /* Pop up a color selection box to choose the foreground color. */
 303 static void
 304 edit_color_filter_fg_cb(GtkButton *button, gpointer user_data _U_)
 305 {
 306   color_filter_t *colorf;
 307   GtkWidget *color_selection_fg;
 308
 309   colorf = (color_filter_t *)g_object_get_data(G_OBJECT(button), COLOR_FILTER);
 310   /* Do we already have one open for this dialog? */
 311   color_selection_fg = g_object_get_data(G_OBJECT(colorf->edit_dialog), COLOR_SELECTION_FG);
 312   if (color_selection_fg != NULL) {
 313     /* Yes.  Just reactivate it. */
 314     reactivate_window(color_selection_fg);
 315   } else {
 316     /* No.  Create a new color selection box, and associate it with
 317        this dialog. */
 318     color_selection_fg = color_sel_win_new(colorf, FALSE);
 319     g_object_set_data(G_OBJECT(colorf->edit_dialog), COLOR_SELECTION_FG, color_selection_fg);
 320     g_object_set_data(G_OBJECT(color_selection_fg), COLOR_SELECTION_PARENT, colorf->edit_dialog);
 321   }
 322 }
 323
 324 /* Pop up a color selection box to choose the background color. */
 325 static void
 326 edit_color_filter_bg_cb                (GtkButton       *button,
 327                                         gpointer         user_data _U_)
 328 {
 329   color_filter_t *colorf;
 330   GtkWidget *color_selection_bg;
 331
 332   colorf = (color_filter_t *)g_object_get_data(G_OBJECT(button), COLOR_FILTER);
 333   /* Do we already have one open for this dialog? */
 334   color_selection_bg = g_object_get_data(G_OBJECT(colorf->edit_dialog), COLOR_SELECTION_BG);
 335   if (color_selection_bg != NULL) {
 336     /* Yes.  Just reactivate it. */
 337     reactivate_window(color_selection_bg);
 338   } else {
 339     /* No.  Create a new color selection box, and associate it with
 340        this dialog. */
 341     color_selection_bg = color_sel_win_new(colorf, TRUE);
 342     g_object_set_data(G_OBJECT(colorf->edit_dialog), COLOR_SELECTION_BG, color_selection_bg);
 343     g_object_set_data(G_OBJECT(color_selection_bg), COLOR_SELECTION_PARENT, colorf->edit_dialog);
 344   }
 345 }
 346
 347 /* Toggle the disabled flag */
 348 #if 0
 349 static void
 350 edit_disabled_cb_cb                    (GtkButton       *button,
 351                                         gpointer         user_data _U_)
 352 {
 353   color_filter_t *colorf;
 354
 355   colorf = (color_filter_t *)g_object_get_data(G_OBJECT(button), COLOR_FILTER);
 356   colorf->disabled = GTK_TOGGLE_BUTTON (button)->active;
 357
 358   printf("Colorfilter %s is now %s\n",colorf->filter_name,colorf->disabled?"disabled":"enabled");
 359 }
 360 #endif
 361
 362 /* accept color (and potential content) change */
 363 static void
 364 edit_color_filter_ok_cb                (GtkButton       *button,
 365                                         gpointer         user_data)
 366 {
 367   GtkWidget      *dialog;
 368   GtkStyle       *style;
 369   GdkColor        new_fg_color;
 370   GdkColor        new_bg_color;
 371   gchar          *filter_name;
 372   gchar          *filter_text;
 373   gboolean        filter_disabled;
 374   color_filter_t *colorf;
 375   dfilter_t      *compiled_filter;
 376   GtkWidget      *color_filters;
 377   GtkTreeModel   *model;
 378   GtkTreeIter     iter;
 379   gchar           fg_str[14], bg_str[14];
 380
 381   dialog = (GtkWidget *)user_data;
 382
 383   style = gtk_widget_get_style(filt_name_entry);
 384   new_bg_color = style->base[GTK_STATE_NORMAL];
 385   new_fg_color = style->text[GTK_STATE_NORMAL];
 386
 387   filter_name = g_strdup(gtk_entry_get_text(GTK_ENTRY(filt_name_entry)));
 388   filter_text = g_strdup(gtk_entry_get_text(GTK_ENTRY(filt_text_entry)));
 389   filter_disabled = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(disabled_cb));
 390
 391   if(strchr(filter_name,'@') || strchr(filter_text,'@')){
 392     simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
 393                   "Filter names and strings must not"
 394                   " use the '@' character. Filter unchanged.");
 395     g_free(filter_name);
 396     g_free(filter_text);
 397     return;
 398   }
 399
 400   if(!dfilter_compile(filter_text, &compiled_filter)) {
 401     simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
 402                   "Filter \"%s\" didn't compile correctly.\n"
 403                   " Please try again. Filter unchanged.\n%s\n", filter_name,
 404                   dfilter_error_msg);
 405   } else {
 406     color_filters = (GtkWidget *)g_object_get_data(G_OBJECT(button), COLOR_FILTERS_CL);
 407     colorf = (color_filter_t *)g_object_get_data(G_OBJECT(button), COLOR_FILTER);
 408
 409     g_free(colorf->filter_name);
 410     colorf->filter_name = filter_name;
 411
 412     g_free(colorf->filter_text);
 413     colorf->filter_text = filter_text;
 414
 415     colorf->disabled = filter_disabled;
 416     gdkcolor_to_color_t(&colorf->fg_color, &new_fg_color);
 417     gdkcolor_to_color_t(&colorf->bg_color, &new_bg_color);
 418     g_snprintf(fg_str, sizeof(fg_str), "#%04X%04X%04X",
 419                new_fg_color.red, new_fg_color.green, new_fg_color.blue);
 420     g_snprintf(bg_str, sizeof(bg_str), "#%04X%04X%04X",
 421                new_bg_color.red, new_bg_color.green, new_bg_color.blue);
 422     model = gtk_tree_view_get_model(GTK_TREE_VIEW(color_filters));
 423     gtk_tree_model_iter_nth_child(model, &iter, NULL, color_dlg_row_selected);
 424     gtk_list_store_set(GTK_LIST_STORE(model), &iter, 0, filter_name,
 425                        1, filter_text, 2, fg_str, 3, bg_str,
 426                        4, filter_disabled, -1);
 427     if(colorf->c_colorfilter != NULL)
 428       dfilter_free(colorf->c_colorfilter);
 429     colorf->c_colorfilter = compiled_filter;
 430
 431     /* Destroy the dialog box. */
 432     window_destroy(dialog);
 433   }
 434 }
 435
 436 /* reject new color filter addition */
 437 static void
 438 edit_new_color_filter_cancel_cb(GtkButton *button, gpointer user_data _U_)
 439 {
 440   /* Delete the entry. As a side effect this destroys the edit_dialog window. */
 441   color_delete_single(color_dlg_num_of_filters-1, (GtkWidget*)g_object_get_data(G_OBJECT(button), COLOR_FILTERS_CL));
 442 }
 443
 444 static GtkWidget*
 445 color_sel_win_new(color_filter_t *colorf, gboolean is_bg)
 446 {
 447   gchar *title;
 448   GtkWidget *color_sel_win;
 449   color_t   *color;
 450   GdkColor   gcolor;
 451   GtkWidget *color_sel_ok;
 452   GtkWidget *color_sel_cancel;
 453   GtkWidget *color_sel_help;
 454
 455   if (is_bg) {
 456     color = &colorf->bg_color;
 457     title = g_strdup_printf("Wireshark: Choose background color for \"%s\"",
 458                             colorf->filter_name);
 459   } else {
 460     color = &colorf->fg_color;
 461     title = g_strdup_printf("Wireshark: Choose foreground color for \"%s\"",
 462                             colorf->filter_name);
 463   }
 464   color_sel_win = gtk_color_selection_dialog_new(title);
 465   g_free(title);
 466   g_object_set_data(G_OBJECT(color_sel_win), "color_sel_win", color_sel_win);
 467   gtk_container_set_border_width (GTK_CONTAINER (color_sel_win), 10);
 468
 469   if (color != NULL) {
 470     color_t_to_gdkcolor(&gcolor, color);
 471     gtk_color_selection_set_current_color(
 472       GTK_COLOR_SELECTION(
 473         GTK_COLOR_SELECTION_DIALOG(color_sel_win)->colorsel), &gcolor);
 474   }
 475
 476   color_sel_ok = GTK_COLOR_SELECTION_DIALOG (color_sel_win)->ok_button;
 477   g_object_set_data(G_OBJECT(color_sel_win), "color_sel_ok", color_sel_ok);
 478   GTK_WIDGET_SET_FLAGS (color_sel_ok, GTK_CAN_DEFAULT);
 479
 480   color_sel_cancel = GTK_COLOR_SELECTION_DIALOG (color_sel_win)->cancel_button;
 481   g_object_set_data(G_OBJECT(color_sel_win), "color_sel_cancel", color_sel_cancel);
 482   GTK_WIDGET_SET_FLAGS (color_sel_cancel, GTK_CAN_DEFAULT);
 483   window_set_cancel_button(color_sel_win, color_sel_cancel, NULL); /* ensure esc does req'd local cxl action.    */
 484   /* esc as handled by the                      */
 485   /* gtk_color_selection_dialog widget          */
 486   /*  doesn't result in this happening.         */
 487
 488   color_sel_help = GTK_COLOR_SELECTION_DIALOG (color_sel_win)->help_button;
 489   g_object_set_data(G_OBJECT(color_sel_win), "color_sel_help", color_sel_help);
 490
 491
 492   GTK_WIDGET_SET_FLAGS (color_sel_help, GTK_CAN_DEFAULT);
 493
 494   g_signal_connect(color_sel_ok, "clicked", G_CALLBACK(color_sel_ok_cb), color_sel_win);
 495   g_signal_connect(color_sel_cancel, "clicked", G_CALLBACK(color_sel_cancel_cb), color_sel_win);
 496
 497   gtk_widget_show_all(color_sel_win);
 498   return color_sel_win;
 499 }
 500
 501 static void
 502 color_sel_win_destroy(GtkWidget *sel_win)
 503 {
 504   GtkWidget *parent;
 505   GtkWidget *color_selection_fg, *color_selection_bg;
 506
 507   /* Find the "Edit color filter" dialog box with which this is associated. */
 508   parent = (GtkWidget *)g_object_get_data(G_OBJECT(sel_win), COLOR_SELECTION_PARENT);
 509
 510   /* Find that dialog box's foreground and background color selection
 511      boxes, if any. */
 512   color_selection_fg = g_object_get_data(G_OBJECT(parent), COLOR_SELECTION_FG);
 513   color_selection_bg = g_object_get_data(G_OBJECT(parent), COLOR_SELECTION_BG);
 514
 515   if (sel_win == color_selection_fg) {
 516     /* This was its foreground color selection box; it isn't, anymore. */
 517     g_object_set_data(G_OBJECT(parent), COLOR_SELECTION_FG, NULL);
 518   }
 519   if (sel_win == color_selection_bg) {
 520     /* This was its background color selection box; it isn't, anymore. */
 521     g_object_set_data(G_OBJECT(parent), COLOR_SELECTION_BG, NULL);
 522   }
 523
 524   /* Now destroy it. */
 525   window_destroy(sel_win);
 526 }
 527
 528 /* Retrieve selected color */
 529 static void
 530 color_sel_ok_cb                        (GtkButton       *button _U_,
 531                                         gpointer         user_data)
 532 {
 533   GdkColor new_color; /* Color from color selection dialog */
 534   GtkWidget *color_dialog;
 535   GtkWidget *parent;
 536   GtkWidget *color_selection_bg;
 537   gboolean is_bg;
 538
 539   color_dialog = (GtkWidget *)user_data;
 540
 541   gtk_color_selection_get_current_color(GTK_COLOR_SELECTION(
 542                                           GTK_COLOR_SELECTION_DIALOG(color_dialog)->colorsel), &new_color);
 543
 544   if ( ! get_color(&new_color) ){
 545     simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
 546                   "Could not allocate color.  Try again.");
 547   } else {
 548     /* Find the "Edit color filter" dialog box with which this is
 549        associated. */
 550     parent = (GtkWidget *)g_object_get_data(G_OBJECT(color_dialog), COLOR_SELECTION_PARENT);
 551
 552     /* Find that dialog box's foreground and background color selection
 553        boxes, if any. */
 554     color_selection_bg = g_object_get_data(G_OBJECT(parent), COLOR_SELECTION_BG);
 555     is_bg = (color_dialog == color_selection_bg);
 556
 557     color_sel_win_destroy(color_dialog);
 558
 559     /* now apply the change to the fore/background */
 560     if (is_bg)
 561       gtk_widget_modify_base(filt_name_entry, GTK_STATE_NORMAL, &new_color);
 562     else
 563       gtk_widget_modify_text(filt_name_entry, GTK_STATE_NORMAL, &new_color);
 564   }
 565 }
 566
 567 /* Don't choose the selected color as the foreground or background
 568    color for the filter. */
 569 static void
 570 color_sel_cancel_cb                    (GtkObject       *object _U_,
 571                                         gpointer         user_data)
 572 {
 573   GtkWidget *color_dialog;
 574   color_dialog = (GtkWidget *)user_data;
 575   /* nothing to change here.  Just get rid of the dialog box. */
 576
 577   color_sel_win_destroy(color_dialog);
 578 }