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_utils.h"
  40 #include "gtk/dlg_utils.h"
  41 #include "gtk/gui_utils.h"
  42 #include "gtk/stock_icons.h"
  43 #include "gtk/filter_dlg.h"
  44 #include "gtk/dfilter_expr_dlg.h"
  45 #include "gtk/color_edit_dlg.h"
  46
  47
  48 #define BUTTON_SIZE_X -1
  49 #define BUTTON_SIZE_Y -1
  50
  51
  52 static void edit_color_filter_destroy_cb(GObject *object, gpointer user_data);
  53 static void edit_color_filter_fg_cb(GtkButton *button, gpointer user_data);
  54 static void edit_color_filter_bg_cb(GtkButton *button, gpointer user_data);
  55 /*
  56 static void edit_disabled_cb_cb(GtkButton *button, gpointer user_data);
  57 */
  58 static void edit_color_filter_ok_cb(GtkButton *button, gpointer user_data);
  59 static void edit_new_color_filter_cancel_cb(GtkButton *button, gpointer user_data);
  60
  61 static GtkWidget* color_sel_win_new(color_filter_t *colorf, gboolean);
  62 static void color_sel_ok_cb(GtkButton *button, gpointer user_data);
  63 static void color_sel_cancel_cb(GtkObject *object, gpointer user_data);
  64
  65
  66 #define COLOR_FILTERS_CL        "color_filters_cl"
  67 #define COLOR_FILTER            "color_filter"
  68 #define COLOR_FILTER_NAME_TE    "color_filter_name_te"
  69 #define COLOR_FILTER_TEXT_TE    "color_filter_text_te"
  70 #define COLOR_SELECTION_FG      "color_selection_fg"
  71 #define COLOR_SELECTION_BG      "color_selection_bg"
  72 #define COLOR_SELECTION_PARENT  "color_selection_parent"
  73
  74 /* XXX - we don't forbid having more than one "Edit color filter" dialog
  75    open, so these shouldn't be global. */
  76 static GtkWidget *filt_name_entry;
  77 static GtkWidget *filt_text_entry;
  78 static GtkWidget *disabled_cb;
  79
  80
  81 static void
  82 filter_expr_cb(GtkWidget *w _U_, gpointer filter_te)
  83 {
  84
  85         dfilter_expr_dlg_new(GTK_WIDGET(filter_te));
  86 }
  87
  88
  89 /* Create an "Edit Color Filter" dialog for a given color filter, and
  90    associate it with that color filter. */
  91 void
  92 edit_color_filter_dialog(GtkWidget *color_filters,
  93                          gboolean is_new_filter)
  94 {
  95     color_filter_t *colorf;
  96     GtkWidget      *edit_dialog;
  97     GtkWidget      *dialog_vbox;
  98     GtkTooltips    *tooltips;
  99     GtkStyle       *style;
 100
 101     GtkWidget *filter_fr;
 102     GtkWidget *filter_fr_vbox;
 103     GtkWidget *filter_name_hbox;
 104     GtkWidget *color_filter_name;
 105     GtkWidget *filter_string_hbox;
 106     GtkWidget *add_expression_bt;
 107     GtkWidget *color_filter_text;
 108
 109     GtkWidget *settings_hbox;
 110
 111     GtkWidget *colorize_fr;
 112     GtkWidget *colorize_hbox;
 113     GtkWidget *colorize_filter_fg;
 114     GtkWidget *colorize_filter_bg;
 115
 116     GtkWidget *status_fr;
 117     GtkWidget *status_vbox;
 118
 119     GtkWidget *bbox;
 120     GtkWidget *edit_color_filter_ok;
 121     GtkWidget *edit_color_filter_cancel;
 122
 123     GtkTreeModel     *model;
 124     GtkTreeIter       iter;
 125
 126     model = gtk_tree_view_get_model(GTK_TREE_VIEW(color_filters));
 127
 128     gtk_tree_model_iter_nth_child(model, &iter, NULL, row_selected);
 129     gtk_tree_model_get(model, &iter, 5, &colorf, -1);
 130
 131     if (colorf->edit_dialog != NULL) {
 132         /* There's already an edit box open for this filter; reactivate it. */
 133         reactivate_window(colorf->edit_dialog);
 134         return;
 135     }
 136
 137     tooltips = gtk_tooltips_new ();
 138
 139     /* dialog window */
 140     edit_dialog = dlg_conf_window_new ("Wireshark: Edit Color Filter");
 141     gtk_window_set_default_size(GTK_WINDOW(edit_dialog), 500, -1);
 142     g_object_set_data(G_OBJECT(edit_dialog), "edit_dialog", edit_dialog);
 143     colorf->edit_dialog = edit_dialog;
 144
 145     dialog_vbox = gtk_vbox_new (FALSE, 0);
 146     gtk_container_set_border_width  (GTK_CONTAINER (dialog_vbox), 5);
 147     gtk_container_add (GTK_CONTAINER (edit_dialog), dialog_vbox);
 148
 149     /* Filter frame */
 150     filter_fr = gtk_frame_new("Filter");
 151     gtk_box_pack_start (GTK_BOX (dialog_vbox), filter_fr, FALSE, FALSE, 0);
 152
 153     filter_fr_vbox = gtk_vbox_new (FALSE, 0);
 154     gtk_container_set_border_width  (GTK_CONTAINER (filter_fr_vbox), 5);
 155     gtk_container_add(GTK_CONTAINER(filter_fr), filter_fr_vbox);
 156
 157     /* filter name hbox */
 158     filter_name_hbox = gtk_hbox_new (FALSE, 0);
 159     gtk_box_pack_start (GTK_BOX (filter_fr_vbox), filter_name_hbox, TRUE, FALSE, 3);
 160
 161     color_filter_name = gtk_label_new (("Name: "));
 162     gtk_box_pack_start (GTK_BOX (filter_name_hbox), color_filter_name, FALSE, FALSE, 0);
 163
 164     filt_name_entry = gtk_entry_new ();
 165     gtk_entry_set_text(GTK_ENTRY(filt_name_entry), colorf->filter_name);
 166
 167     style = gtk_style_copy(gtk_widget_get_style(filt_name_entry));
 168     color_t_to_gdkcolor(&style->base[GTK_STATE_NORMAL], &colorf->bg_color);
 169     color_t_to_gdkcolor(&style->text[GTK_STATE_NORMAL], &colorf->fg_color);
 170     gtk_widget_set_style(filt_name_entry, style);
 171
 172     gtk_box_pack_start (GTK_BOX (filter_name_hbox), filt_name_entry, TRUE, TRUE, 0);
 173     gtk_tooltips_set_tip (tooltips, filt_name_entry, ("This is the editable name of the filter. (No @ characters allowed.)"), NULL);
 174
 175
 176     /* filter string hbox */
 177     filter_string_hbox = gtk_hbox_new (FALSE, 0);
 178     gtk_box_pack_start (GTK_BOX (filter_fr_vbox), filter_string_hbox, TRUE, FALSE, 3);
 179
 180     color_filter_text = gtk_label_new (("String: "));
 181     gtk_box_pack_start (GTK_BOX (filter_string_hbox), color_filter_text, FALSE, FALSE, 0);
 182
 183     filt_text_entry = gtk_entry_new ();
 184     g_signal_connect(filt_text_entry, "changed", G_CALLBACK(filter_te_syntax_check_cb), NULL);
 185     gtk_entry_set_text(GTK_ENTRY(filt_text_entry), colorf->filter_text);
 186
 187     gtk_style_unref(style);
 188     gtk_box_pack_start (GTK_BOX (filter_string_hbox), filt_text_entry, TRUE, TRUE, 0);
 189     gtk_tooltips_set_tip (tooltips, filt_text_entry, ("This is the editable text of the filter"), NULL);
 190
 191     /* Create the "Add Expression..." button, to pop up a dialog
 192        for constructing filter comparison expressions. */
 193     add_expression_bt = gtk_button_new_from_stock(WIRESHARK_STOCK_ADD_EXPRESSION);
 194     g_signal_connect(add_expression_bt, "clicked", G_CALLBACK(filter_expr_cb), filt_text_entry);
 195     gtk_box_pack_start (GTK_BOX(filter_string_hbox), add_expression_bt, FALSE, FALSE, 3);
 196     gtk_tooltips_set_tip (tooltips, add_expression_bt, ("Add an expression to the filter string"), NULL);
 197
 198     /* Show the (in)validity of the default filter string */
 199     filter_te_syntax_check_cb(filt_text_entry);
 200
 201     /* settings-hbox for "choose color frame" and "status frame" */
 202     settings_hbox = gtk_hbox_new (FALSE, 0);
 203     gtk_box_pack_start (GTK_BOX (dialog_vbox), settings_hbox, FALSE, FALSE, 0);
 204
 205     /* choose color frame */
 206     colorize_fr = gtk_frame_new("Display Colors");
 207     gtk_box_pack_start (GTK_BOX (settings_hbox), colorize_fr, TRUE, TRUE, 0);
 208
 209     colorize_hbox = gtk_hbox_new (FALSE, 0);
 210     gtk_container_set_border_width  (GTK_CONTAINER (colorize_hbox), 5);
 211     gtk_container_add(GTK_CONTAINER(colorize_fr), colorize_hbox);
 212
 213     colorize_filter_fg = gtk_button_new_with_label (("Foreground Color..."));
 214     gtk_box_pack_start (GTK_BOX (colorize_hbox), colorize_filter_fg, TRUE, FALSE, 0);
 215     gtk_tooltips_set_tip (tooltips, colorize_filter_fg, ("Select foreground color for data display"), NULL);
 216
 217     colorize_filter_bg = gtk_button_new_with_label (("Background Color..."));
 218     gtk_box_pack_start (GTK_BOX (colorize_hbox), colorize_filter_bg, TRUE, FALSE, 0);
 219     gtk_tooltips_set_tip (tooltips, colorize_filter_bg, ("Select background color for data display"), NULL);
 220
 221     /* status frame */
 222     status_fr = gtk_frame_new("Status");
 223     gtk_box_pack_start (GTK_BOX (settings_hbox), status_fr, TRUE, TRUE, 0);
 224
 225     status_vbox = gtk_vbox_new (FALSE, 0);
 226     gtk_container_set_border_width  (GTK_CONTAINER (status_vbox), 5);
 227     gtk_container_add(GTK_CONTAINER(status_fr), status_vbox);
 228
 229     disabled_cb = gtk_check_button_new_with_label("Disabled");
 230     gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(disabled_cb), colorf->disabled);
 231     gtk_box_pack_start (GTK_BOX (status_vbox), disabled_cb, TRUE, FALSE, 0);
 232     gtk_tooltips_set_tip (tooltips, disabled_cb, ("Color rule won't be checked if this box is selected"), NULL);
 233
 234     /* button box */
 235     bbox = dlg_button_row_new(GTK_STOCK_OK, GTK_STOCK_CANCEL, NULL);
 236         gtk_box_pack_start(GTK_BOX(dialog_vbox), bbox, FALSE, FALSE, 0);
 237     gtk_container_set_border_width  (GTK_CONTAINER (bbox), 0);
 238
 239     edit_color_filter_ok = g_object_get_data(G_OBJECT(bbox), GTK_STOCK_OK);
 240     gtk_tooltips_set_tip (tooltips, edit_color_filter_ok, ("Accept filter color change"), NULL);
 241
 242     edit_color_filter_cancel = g_object_get_data(G_OBJECT(bbox), GTK_STOCK_CANCEL);
 243     gtk_tooltips_set_tip (tooltips, edit_color_filter_cancel, ("Reject filter color change"), NULL);
 244
 245     gtk_widget_grab_default(edit_color_filter_ok);
 246
 247     /* signals and such */
 248     g_object_set_data(G_OBJECT(edit_dialog), COLOR_FILTER, colorf);
 249     g_signal_connect(edit_dialog, "destroy", G_CALLBACK(edit_color_filter_destroy_cb), NULL);
 250     g_object_set_data(G_OBJECT(colorize_filter_fg), COLOR_FILTER, colorf);
 251     g_signal_connect(colorize_filter_fg, "clicked", G_CALLBACK(edit_color_filter_fg_cb), NULL);
 252     g_object_set_data(G_OBJECT(colorize_filter_bg), COLOR_FILTER, colorf);
 253     g_signal_connect(colorize_filter_bg, "clicked", G_CALLBACK(edit_color_filter_bg_cb), NULL);
 254     g_object_set_data(G_OBJECT(disabled_cb), COLOR_FILTER, colorf);
 255 /*    g_signal_connect(disabled_cb, "clicked", edit_disabled_cb_cb, NULL);*/
 256     g_object_set_data(G_OBJECT(edit_color_filter_ok), COLOR_FILTERS_CL, color_filters);
 257     g_object_set_data(G_OBJECT(edit_color_filter_ok), COLOR_FILTER, colorf);
 258     g_signal_connect(edit_color_filter_ok, "clicked", G_CALLBACK(edit_color_filter_ok_cb), edit_dialog);
 259
 260     /* set callback to delete new filters if cancel chosen */
 261     if (is_new_filter)
 262     {
 263         g_object_set_data(G_OBJECT(edit_color_filter_cancel), COLOR_FILTERS_CL, color_filters);
 264         g_signal_connect(edit_color_filter_cancel, "clicked",
 265                        G_CALLBACK(edit_new_color_filter_cancel_cb), edit_dialog);
 266     }
 267     /* escape will select cancel */
 268     window_set_cancel_button(edit_dialog, edit_color_filter_cancel, window_cancel_button_cb);
 269
 270     g_signal_connect(edit_dialog, "delete_event", G_CALLBACK(window_delete_event_cb), NULL);
 271
 272     gtk_widget_show_all(edit_dialog);
 273     window_present(edit_dialog);
 274 }
 275
 276 /* Called when the dialog box is being destroyed; destroy any color
 277    selection dialogs opened from this dialog, and null out the pointer
 278    to this dialog. */
 279 static void
 280 edit_color_filter_destroy_cb(GObject *object, gpointer user_data _U_)
 281 {
 282   color_filter_t *colorf;
 283   GtkWidget *color_sel;
 284
 285   colorf = (color_filter_t *)g_object_get_data(G_OBJECT(object), COLOR_FILTER);
 286   colorf->edit_dialog = NULL;
 287
 288   /* Destroy any color selection dialogs this dialog had open. */
 289   color_sel = (GtkWidget *)g_object_get_data(G_OBJECT(object), COLOR_SELECTION_FG);
 290   if (color_sel != NULL)
 291     window_destroy(color_sel);
 292   color_sel = (GtkWidget *)g_object_get_data(G_OBJECT(object), COLOR_SELECTION_BG);
 293   if (color_sel != NULL)
 294     window_destroy(color_sel);
 295 }
 296
 297 /* Pop up a color selection box to choose the foreground color. */
 298 static void
 299 edit_color_filter_fg_cb(GtkButton *button, gpointer user_data _U_)
 300 {
 301   color_filter_t *colorf;
 302   GtkWidget *color_selection_fg;
 303
 304   colorf = (color_filter_t *)g_object_get_data(G_OBJECT(button), COLOR_FILTER);
 305   /* Do we already have one open for this dialog? */
 306   color_selection_fg = g_object_get_data(G_OBJECT(colorf->edit_dialog), COLOR_SELECTION_FG);
 307   if (color_selection_fg != NULL) {
 308     /* Yes.  Just reactivate it. */
 309     reactivate_window(color_selection_fg);
 310   } else {
 311     /* No.  Create a new color selection box, and associate it with
 312        this dialog. */
 313     color_selection_fg = color_sel_win_new(colorf, FALSE);
 314     g_object_set_data(G_OBJECT(colorf->edit_dialog), COLOR_SELECTION_FG, color_selection_fg);
 315     g_object_set_data(G_OBJECT(color_selection_fg), COLOR_SELECTION_PARENT, colorf->edit_dialog);
 316   }
 317 }
 318
 319 /* Pop up a color selection box to choose the background color. */
 320 static void
 321 edit_color_filter_bg_cb                (GtkButton       *button,
 322                                         gpointer         user_data _U_)
 323 {
 324   color_filter_t *colorf;
 325   GtkWidget *color_selection_bg;
 326
 327   colorf = (color_filter_t *)g_object_get_data(G_OBJECT(button), COLOR_FILTER);
 328   /* Do we already have one open for this dialog? */
 329   color_selection_bg = g_object_get_data(G_OBJECT(colorf->edit_dialog), COLOR_SELECTION_BG);
 330   if (color_selection_bg != NULL) {
 331     /* Yes.  Just reactivate it. */
 332     reactivate_window(color_selection_bg);
 333   } else {
 334     /* No.  Create a new color selection box, and associate it with
 335        this dialog. */
 336     color_selection_bg = color_sel_win_new(colorf, TRUE);
 337     g_object_set_data(G_OBJECT(colorf->edit_dialog), COLOR_SELECTION_BG, color_selection_bg);
 338     g_object_set_data(G_OBJECT(color_selection_bg), COLOR_SELECTION_PARENT, colorf->edit_dialog);
 339   }
 340 }
 341
 342 /* Toggle the disabled flag */
 343 /*
 344 static void
 345 edit_disabled_cb_cb                    (GtkButton       *button,
 346                                         gpointer         user_data _U_)
 347 {
 348   color_filter_t *colorf;
 349
 350   colorf = (color_filter_t *)g_object_get_data(G_OBJECT(button), COLOR_FILTER);
 351   colorf->disabled = GTK_TOGGLE_BUTTON (button)->active;
 352
 353   printf("Colorfilter %s is now %s\n",colorf->filter_name,colorf->disabled?"disabled":"enabled");
 354 }
 355 */
 356
 357 /* accept color (and potential content) change */
 358 static void
 359 edit_color_filter_ok_cb                (GtkButton       *button,
 360                                         gpointer         user_data)
 361 {
 362     GtkWidget      *dialog;
 363     GtkStyle       *style;
 364     GdkColor        new_fg_color;
 365     GdkColor        new_bg_color;
 366     gchar          *filter_name;
 367     gchar          *filter_text;
 368     gboolean        filter_disabled;
 369     color_filter_t *colorf;
 370     dfilter_t      *compiled_filter;
 371     GtkWidget      *color_filters;
 372     GtkTreeModel   *model;
 373     GtkTreeIter     iter;
 374     gchar           fg_str[14], bg_str[14];
 375
 376     dialog = (GtkWidget *)user_data;
 377
 378     style = gtk_widget_get_style(filt_name_entry);
 379     new_bg_color = style->base[GTK_STATE_NORMAL];
 380     new_fg_color = style->text[GTK_STATE_NORMAL];
 381
 382     filter_name = g_strdup(gtk_entry_get_text(GTK_ENTRY(filt_name_entry)));
 383     filter_text = g_strdup(gtk_entry_get_text(GTK_ENTRY(filt_text_entry)));
 384     filter_disabled = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(disabled_cb));
 385
 386     if(strchr(filter_name,'@') || strchr(filter_text,'@')){
 387         simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
 388                       "Filter names and strings must not"
 389                       " use the '@' character. Filter unchanged.");
 390         g_free(filter_name);
 391         g_free(filter_text);
 392         return;
 393     }
 394
 395     if(!dfilter_compile(filter_text, &compiled_filter)) {
 396         simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
 397                       "Filter \"%s\" didn't compile correctly.\n"
 398                       " Please try again. Filter unchanged.\n%s\n", filter_name,
 399                       dfilter_error_msg);
 400     } else {
 401         color_filters = (GtkWidget *)g_object_get_data(G_OBJECT(button), COLOR_FILTERS_CL);
 402         colorf = (color_filter_t *)g_object_get_data(G_OBJECT(button), COLOR_FILTER);
 403
 404         if (colorf->filter_name != NULL)
 405             g_free(colorf->filter_name);
 406         colorf->filter_name = filter_name;
 407         if (colorf->filter_text != NULL)
 408             g_free(colorf->filter_text);
 409         colorf->filter_text = filter_text;
 410         colorf->disabled = filter_disabled;
 411         gdkcolor_to_color_t(&colorf->fg_color, &new_fg_color);
 412         gdkcolor_to_color_t(&colorf->bg_color, &new_bg_color);
 413         g_snprintf(fg_str, 14, "#%04X%04X%04X",
 414                 new_fg_color.red, new_fg_color.green, new_fg_color.blue);
 415         g_snprintf(bg_str, 14, "#%04X%04X%04X",
 416                 new_bg_color.red, new_bg_color.green, new_bg_color.blue);
 417         model = gtk_tree_view_get_model(GTK_TREE_VIEW(color_filters));
 418         gtk_tree_model_iter_nth_child(model, &iter, NULL, row_selected);
 419         gtk_list_store_set(GTK_LIST_STORE(model), &iter, 0, filter_name,
 420                            1, filter_text, 2, fg_str, 3, bg_str,
 421                            4, filter_disabled, -1);
 422         if(colorf->c_colorfilter != NULL)
 423             dfilter_free(colorf->c_colorfilter);
 424         colorf->c_colorfilter = compiled_filter;
 425
 426         /* Destroy the dialog box. */
 427         window_destroy(dialog);
 428     }
 429 }
 430
 431 /* reject new color filter addition */
 432 static void
 433 edit_new_color_filter_cancel_cb(GtkButton *button, gpointer user_data _U_)
 434 {
 435     /* Delete the entry. As a side effect this destroys the edit_dialog window. */
 436     color_delete(num_of_filters-1, (GtkWidget*)g_object_get_data(G_OBJECT(button), COLOR_FILTERS_CL));
 437 }
 438
 439 static GtkWidget*
 440 color_sel_win_new(color_filter_t *colorf, gboolean is_bg)
 441 {
 442   gchar *title;
 443   GtkWidget *color_sel_win;
 444   color_t   *color;
 445   GdkColor   gcolor;
 446   GtkWidget *color_sel_ok;
 447   GtkWidget *color_sel_cancel;
 448   GtkWidget *color_sel_help;
 449
 450   if (is_bg) {
 451     color = &colorf->bg_color;
 452     title = g_strdup_printf("Wireshark: Choose background color for \"%s\"",
 453         colorf->filter_name);
 454   } else {
 455     color = &colorf->fg_color;
 456     title = g_strdup_printf("Wireshark: Choose foreground color for \"%s\"",
 457         colorf->filter_name);
 458   }
 459   color_sel_win = gtk_color_selection_dialog_new(title);
 460   g_free(title);
 461   g_object_set_data(G_OBJECT(color_sel_win), "color_sel_win", color_sel_win);
 462   gtk_container_set_border_width (GTK_CONTAINER (color_sel_win), 10);
 463
 464   if (color != NULL) {
 465     color_t_to_gdkcolor(&gcolor, color);
 466     gtk_color_selection_set_current_color(
 467                     GTK_COLOR_SELECTION(
 468                             GTK_COLOR_SELECTION_DIALOG(color_sel_win)->colorsel), &gcolor);
 469   }
 470
 471   color_sel_ok = GTK_COLOR_SELECTION_DIALOG (color_sel_win)->ok_button;
 472   g_object_set_data(G_OBJECT(color_sel_win), "color_sel_ok", color_sel_ok);
 473   GTK_WIDGET_SET_FLAGS (color_sel_ok, GTK_CAN_DEFAULT);
 474
 475   color_sel_cancel = GTK_COLOR_SELECTION_DIALOG (color_sel_win)->cancel_button;
 476   g_object_set_data(G_OBJECT(color_sel_win), "color_sel_cancel", color_sel_cancel);
 477   GTK_WIDGET_SET_FLAGS (color_sel_cancel, GTK_CAN_DEFAULT);
 478   window_set_cancel_button(color_sel_win, color_sel_cancel, NULL); /* ensure esc does req'd local cxl action.    */
 479                                                                    /* esc as handled by the                      */
 480                                                                    /* gtk_color_selection_dialog widget          */
 481                                                                    /*  doesn't result in this happening.         */
 482
 483   color_sel_help = GTK_COLOR_SELECTION_DIALOG (color_sel_win)->help_button;
 484   g_object_set_data(G_OBJECT(color_sel_win), "color_sel_help", color_sel_help);
 485
 486
 487   GTK_WIDGET_SET_FLAGS (color_sel_help, GTK_CAN_DEFAULT);
 488
 489   g_signal_connect(color_sel_ok, "clicked", G_CALLBACK(color_sel_ok_cb), color_sel_win);
 490   g_signal_connect(color_sel_cancel, "clicked", G_CALLBACK(color_sel_cancel_cb), color_sel_win);
 491
 492   gtk_widget_show_all(color_sel_win);
 493   return color_sel_win;
 494 }
 495
 496 static void
 497 color_sel_win_destroy(GtkWidget *sel_win)
 498 {
 499   GtkWidget *parent;
 500   GtkWidget *color_selection_fg, *color_selection_bg;
 501
 502   /* Find the "Edit color filter" dialog box with which this is associated. */
 503   parent = (GtkWidget *)g_object_get_data(G_OBJECT(sel_win), COLOR_SELECTION_PARENT);
 504
 505   /* Find that dialog box's foreground and background color selection
 506      boxes, if any. */
 507   color_selection_fg = g_object_get_data(G_OBJECT(parent), COLOR_SELECTION_FG);
 508   color_selection_bg = g_object_get_data(G_OBJECT(parent), COLOR_SELECTION_BG);
 509
 510   if (sel_win == color_selection_fg) {
 511     /* This was its foreground color selection box; it isn't, anymore. */
 512     g_object_set_data(G_OBJECT(parent), COLOR_SELECTION_FG, NULL);
 513   }
 514   if (sel_win == color_selection_bg) {
 515     /* This was its background color selection box; it isn't, anymore. */
 516     g_object_set_data(G_OBJECT(parent), COLOR_SELECTION_BG, NULL);
 517   }
 518
 519   /* Now destroy it. */
 520   window_destroy(sel_win);
 521 }
 522
 523 /* Retrieve selected color */
 524 static void
 525 color_sel_ok_cb                        (GtkButton       *button _U_,
 526                                         gpointer         user_data)
 527 {
 528   GdkColor new_color; /* Color from color selection dialog */
 529   GtkWidget *color_dialog;
 530   GtkStyle  *style;
 531   GtkWidget *parent;
 532   GtkWidget *color_selection_fg, *color_selection_bg;
 533   gboolean is_bg;
 534
 535   color_dialog = (GtkWidget *)user_data;
 536
 537   gtk_color_selection_get_current_color(GTK_COLOR_SELECTION(
 538    GTK_COLOR_SELECTION_DIALOG(color_dialog)->colorsel), &new_color);
 539
 540   if ( ! get_color(&new_color) ){
 541         simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
 542                       "Could not allocate color.  Try again.");
 543   } else {
 544         /* Find the "Edit color filter" dialog box with which this is
 545            associated. */
 546         parent = (GtkWidget *)g_object_get_data(G_OBJECT(color_dialog), COLOR_SELECTION_PARENT);
 547
 548         /* Find that dialog box's foreground and background color selection
 549            boxes, if any. */
 550         color_selection_fg = g_object_get_data(G_OBJECT(parent), COLOR_SELECTION_FG);
 551         color_selection_bg = g_object_get_data(G_OBJECT(parent), COLOR_SELECTION_BG);
 552         is_bg = (color_dialog == color_selection_bg);
 553
 554         color_sel_win_destroy(color_dialog);
 555
 556         /* now apply the change to the fore/background */
 557
 558         style = gtk_style_copy(gtk_widget_get_style(filt_name_entry));
 559         if (is_bg)
 560           style->base[GTK_STATE_NORMAL] = new_color;
 561         else
 562           style->text[GTK_STATE_NORMAL] = new_color;
 563
 564         gtk_widget_set_style(filt_name_entry, style);
 565         gtk_style_unref(style);
 566   }
 567 }
 568
 569 /* Don't choose the selected color as the foreground or background
 570    color for the filter. */
 571 static void
 572 color_sel_cancel_cb                    (GtkObject       *object _U_,
 573                                         gpointer         user_data)
 574 {
 575   GtkWidget *color_dialog;
 576   color_dialog = (GtkWidget *)user_data;
 577   /* nothing to change here.  Just get rid of the dialog box. */
 578
 579   color_sel_win_destroy(color_dialog);
 580 }