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/* gui_prefs.c
 * Dialog box for GUI preferences
 *
 * $Id: gui_prefs.c,v 1.6 2000/08/20 07:53:43 guy Exp $
 *
 * Ethereal - Network traffic analyzer
 * By Gerald Combs <gerald@zing.org>
 * Copyright 1998 Gerald Combs
 *
 * 
 * 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.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <errno.h>

#include "globals.h"
#include "gui_prefs.h"
#include "gtkglobals.h"
#include "prefs_dlg.h"
#include "ui_util.h"
#include "dlg_utils.h"

static void scrollbar_menu_item_cb(GtkWidget *w, gpointer data);
static void plist_sel_browse_cb(GtkWidget *w, gpointer data);
static void ptree_sel_browse_cb(GtkWidget *w, gpointer data);
static void ptree_line_style_cb(GtkWidget *w, gpointer data);
static void ptree_expander_style_cb(GtkWidget *w, gpointer data);
static void font_browse_cb(GtkWidget *w, gpointer data);
static void font_browse_ok_cb(GtkWidget *w, GtkFontSelectionDialog *fs);
static void font_browse_destroy(GtkWidget *win, gpointer data);

static gboolean temp_gui_scrollbar_on_right;
static gboolean temp_gui_plist_sel_browse;
static gboolean temp_gui_ptree_sel_browse;
static gint temp_gui_ptree_line_style;
static gint temp_gui_ptree_expander_style;
static gchar *temp_gui_font_name;

#define E_FONT_DIALOG_PTR_KEY	"font_dialog_ptr"
#define E_FONT_CALLER_PTR_KEY	"font_caller_ptr"

GtkWidget*
gui_prefs_show(void)
{
	GtkWidget	*main_tb, *main_vb, *label;
	GtkWidget	*menu_item_false, *menu_item_true,
			*menu_item_0, *menu_item_1, *menu_item_2, *menu_item_3,
			*scrollbar_menu, *scrollbar_option_menu, *font_bt;

	temp_gui_scrollbar_on_right = prefs.gui_scrollbar_on_right;
	temp_gui_plist_sel_browse = prefs.gui_plist_sel_browse;
	temp_gui_ptree_sel_browse = prefs.gui_ptree_sel_browse;
	temp_gui_ptree_line_style = prefs.gui_ptree_line_style;
	temp_gui_ptree_expander_style = prefs.gui_ptree_expander_style;
	temp_gui_font_name = g_strdup(prefs.gui_font_name);

	/* Main vertical box */
	main_vb = gtk_vbox_new(FALSE, 5);
	gtk_container_border_width( GTK_CONTAINER(main_vb), 5 );

	/* Main table */
	main_tb = gtk_table_new(6, 2, FALSE);
	gtk_box_pack_start( GTK_BOX(main_vb), main_tb, FALSE, FALSE, 0 );
	gtk_table_set_row_spacings( GTK_TABLE(main_tb), 10 );
	gtk_table_set_col_spacings( GTK_TABLE(main_tb), 15 );


	/* Scrollbar placment */
	label = gtk_label_new("Vertical Scrollbar Placement:");
	gtk_misc_set_alignment( GTK_MISC(label), 1.0, 0.5 );
	gtk_table_attach_defaults( GTK_TABLE(main_tb), label, 0, 1, 0, 1 );

	/* Create a simple menu containing the LEFT/RIGHT choices for
	 * the scrollbar placement option */
	scrollbar_menu = gtk_menu_new();
	menu_item_false  = gtk_menu_item_new_with_label("Left");
	menu_item_true = gtk_menu_item_new_with_label("Right");
	gtk_menu_append( GTK_MENU(scrollbar_menu), menu_item_false );
	gtk_menu_append( GTK_MENU(scrollbar_menu), menu_item_true );

	gtk_signal_connect( GTK_OBJECT(menu_item_false), "activate",
			scrollbar_menu_item_cb, GINT_TO_POINTER(FALSE) );
	gtk_signal_connect( GTK_OBJECT(menu_item_true), "activate",
			scrollbar_menu_item_cb, GINT_TO_POINTER(TRUE) );

	/* Create the option menu from the option */
	scrollbar_option_menu = gtk_option_menu_new();
	gtk_option_menu_set_menu( GTK_OPTION_MENU(scrollbar_option_menu),
			scrollbar_menu );
	gtk_option_menu_set_history( GTK_OPTION_MENU(scrollbar_option_menu),
			temp_gui_scrollbar_on_right);
	gtk_table_attach_defaults( GTK_TABLE(main_tb), scrollbar_option_menu,
			1, 2, 0, 1 );


	/* Packet list selection browseable */
	label = gtk_label_new("Packet-list selection bar movement:");
	gtk_misc_set_alignment( GTK_MISC(label), 1.0, 0.5 );
	gtk_table_attach_defaults( GTK_TABLE(main_tb), label, 0, 1, 1, 2 );

	/* Create a simple menu containing the LEFT/RIGHT choices */
	scrollbar_menu = gtk_menu_new();
	menu_item_false  = gtk_menu_item_new_with_label("Selects");
	menu_item_true = gtk_menu_item_new_with_label("Browses");
	gtk_menu_append( GTK_MENU(scrollbar_menu), menu_item_false );
	gtk_menu_append( GTK_MENU(scrollbar_menu), menu_item_true );

	gtk_signal_connect( GTK_OBJECT(menu_item_false), "activate",
			plist_sel_browse_cb, GINT_TO_POINTER(FALSE) );
	gtk_signal_connect( GTK_OBJECT(menu_item_true), "activate",
			plist_sel_browse_cb, GINT_TO_POINTER(TRUE) );

	/* Create the option menu from the option */
	scrollbar_option_menu = gtk_option_menu_new();
	gtk_option_menu_set_menu( GTK_OPTION_MENU(scrollbar_option_menu),
			scrollbar_menu );
	gtk_option_menu_set_history( GTK_OPTION_MENU(scrollbar_option_menu),
			temp_gui_plist_sel_browse);
	gtk_table_attach_defaults( GTK_TABLE(main_tb), scrollbar_option_menu,
			1, 2, 1, 2 );


	/* Proto tree selection browseable */
	label = gtk_label_new("Protocol-tree selection bar movement:");
	gtk_misc_set_alignment( GTK_MISC(label), 1.0, 0.5 );
	gtk_table_attach_defaults( GTK_TABLE(main_tb), label, 0, 1, 2, 3 );

	/* Create a simple menu containing the LEFT/RIGHT choices */
	scrollbar_menu = gtk_menu_new();
	menu_item_false  = gtk_menu_item_new_with_label("Selects");
	menu_item_true = gtk_menu_item_new_with_label("Browses");
	gtk_menu_append( GTK_MENU(scrollbar_menu), menu_item_false );
	gtk_menu_append( GTK_MENU(scrollbar_menu), menu_item_true );

	gtk_signal_connect( GTK_OBJECT(menu_item_false), "activate",
			ptree_sel_browse_cb, GINT_TO_POINTER(FALSE) );
	gtk_signal_connect( GTK_OBJECT(menu_item_true), "activate",
			ptree_sel_browse_cb, GINT_TO_POINTER(TRUE) );

	/* Create the option menu from the option */
	scrollbar_option_menu = gtk_option_menu_new();
	gtk_option_menu_set_menu( GTK_OPTION_MENU(scrollbar_option_menu),
			scrollbar_menu );
	gtk_option_menu_set_history( GTK_OPTION_MENU(scrollbar_option_menu),
			temp_gui_ptree_sel_browse);
	gtk_table_attach_defaults( GTK_TABLE(main_tb), scrollbar_option_menu,
			1, 2, 2, 3 );


	/* Proto tree line style */
	label = gtk_label_new("Protocol-tree line style:");
	gtk_misc_set_alignment( GTK_MISC(label), 1.0, 0.5 );
	gtk_table_attach_defaults( GTK_TABLE(main_tb), label, 0, 1, 3, 4 );

	/* Create a menu */
	scrollbar_menu = gtk_menu_new();
	menu_item_0 = gtk_menu_item_new_with_label("None");
	menu_item_1 = gtk_menu_item_new_with_label("Solid");
	menu_item_2 = gtk_menu_item_new_with_label("Dotted");
	menu_item_3 = gtk_menu_item_new_with_label("Tabbed");
	gtk_menu_append( GTK_MENU(scrollbar_menu), menu_item_0 );
	gtk_menu_append( GTK_MENU(scrollbar_menu), menu_item_1 );
	gtk_menu_append( GTK_MENU(scrollbar_menu), menu_item_2 );
	gtk_menu_append( GTK_MENU(scrollbar_menu), menu_item_3 );

	gtk_signal_connect( GTK_OBJECT(menu_item_0), "activate",
			ptree_line_style_cb, GINT_TO_POINTER(0) );
	gtk_signal_connect( GTK_OBJECT(menu_item_1), "activate",
			ptree_line_style_cb, GINT_TO_POINTER(1) );
	gtk_signal_connect( GTK_OBJECT(menu_item_2), "activate",
			ptree_line_style_cb, GINT_TO_POINTER(2) );
	gtk_signal_connect( GTK_OBJECT(menu_item_3), "activate",
			ptree_line_style_cb, GINT_TO_POINTER(3) );

	/* Create the option menu from the option */
	scrollbar_option_menu = gtk_option_menu_new();
	gtk_option_menu_set_menu( GTK_OPTION_MENU(scrollbar_option_menu),
			scrollbar_menu );
	gtk_option_menu_set_history( GTK_OPTION_MENU(scrollbar_option_menu),
			temp_gui_ptree_line_style);
	gtk_table_attach_defaults( GTK_TABLE(main_tb), scrollbar_option_menu,
			1, 2, 3, 4 );


	/* Proto tree expander style */
	label = gtk_label_new("Protocol-tree expander style:");
	gtk_misc_set_alignment( GTK_MISC(label), 1.0, 0.5 );
	gtk_table_attach_defaults( GTK_TABLE(main_tb), label, 0, 1, 4, 5 );

	/* Create a menu */
	scrollbar_menu = gtk_menu_new();
	menu_item_0 = gtk_menu_item_new_with_label("None");
	menu_item_1 = gtk_menu_item_new_with_label("Square");
	menu_item_2 = gtk_menu_item_new_with_label("Triangle");
	menu_item_3 = gtk_menu_item_new_with_label("Circular");
	gtk_menu_append( GTK_MENU(scrollbar_menu), menu_item_0 );
	gtk_menu_append( GTK_MENU(scrollbar_menu), menu_item_1 );
	gtk_menu_append( GTK_MENU(scrollbar_menu), menu_item_2 );
	gtk_menu_append( GTK_MENU(scrollbar_menu), menu_item_3 );

	gtk_signal_connect( GTK_OBJECT(menu_item_0), "activate",
			ptree_expander_style_cb, GINT_TO_POINTER(0) );
	gtk_signal_connect( GTK_OBJECT(menu_item_1), "activate",
			ptree_expander_style_cb, GINT_TO_POINTER(1) );
	gtk_signal_connect( GTK_OBJECT(menu_item_2), "activate",
			ptree_expander_style_cb, GINT_TO_POINTER(2) );
	gtk_signal_connect( GTK_OBJECT(menu_item_3), "activate",
			ptree_expander_style_cb, GINT_TO_POINTER(3) );

	/* Create the option menu from the option */
	scrollbar_option_menu = gtk_option_menu_new();
	gtk_option_menu_set_menu( GTK_OPTION_MENU(scrollbar_option_menu),
			scrollbar_menu );
	gtk_option_menu_set_history( GTK_OPTION_MENU(scrollbar_option_menu),
			temp_gui_ptree_expander_style);
	gtk_table_attach_defaults( GTK_TABLE(main_tb), scrollbar_option_menu,
			1, 2, 4, 5 );

	/* "Font..." button - click to open a font selection dialog box. */
	font_bt = gtk_button_new_with_label("Font...");
	gtk_signal_connect(GTK_OBJECT(font_bt), "clicked",
	    GTK_SIGNAL_FUNC(font_browse_cb), NULL);
	gtk_table_attach_defaults( GTK_TABLE(main_tb), font_bt, 1, 2, 5, 6 );

	/* Show 'em what we got */
	gtk_widget_show_all(main_vb);

	return(main_vb);
}


static void
scrollbar_menu_item_cb(GtkWidget *w, gpointer data)
{
	gboolean	value = GPOINTER_TO_INT(data);

	temp_gui_scrollbar_on_right = value;
	set_scrollbar_placement_all(value);
}

static void
plist_sel_browse_cb(GtkWidget *w, gpointer data)
{
	gboolean	value = GPOINTER_TO_INT(data);

	temp_gui_plist_sel_browse = value;
	set_plist_sel_browse(value);
}

static void
ptree_sel_browse_cb(GtkWidget *w, gpointer data)
{
	gboolean	value = GPOINTER_TO_INT(data);

	temp_gui_ptree_sel_browse = value;
	set_ptree_sel_browse_all(value);
}

static void
ptree_line_style_cb(GtkWidget *w, gpointer data)
{
	gint	value = GPOINTER_TO_INT(data);

	temp_gui_ptree_line_style = value;
	set_ptree_line_style_all(value);
}

static void
ptree_expander_style_cb(GtkWidget *w, gpointer data)
{
	gint	value = GPOINTER_TO_INT(data);

	temp_gui_ptree_expander_style = value;
	set_ptree_expander_style_all(value);
}

/* XXX - need a way to set this on the fly, so that a font change takes
   effect immediately, rather than requiring the user to exit and restart
   Ethereal. */

/* Create a font dialog for browsing. */
static void
font_browse_cb(GtkWidget *w, gpointer data)
{
	GtkWidget *caller = gtk_widget_get_toplevel(w);
	GtkWidget *font_browse_w;
	static gchar *fixedwidths[] = { "c", "m", NULL };

	/* Has a font dialog box already been opened for that top-level
	   widget? */
	font_browse_w = gtk_object_get_data(GTK_OBJECT(caller),
	    E_FONT_DIALOG_PTR_KEY);

	if (font_browse_w != NULL) {
		/* Yes.  Just re-activate that dialog box. */
		reactivate_window(font_browse_w);
		return;
	}

	/* Now create a new dialog. */
	font_browse_w = gtk_font_selection_dialog_new("Ethereal: Select Font");
	gtk_window_set_transient_for(GTK_WINDOW(font_browse_w),
	    GTK_WINDOW(top_level));

	/* Call a handler when we're destroyed, so we can inform
	   our caller, if any, that we've been destroyed. */
	gtk_signal_connect(GTK_OBJECT(font_browse_w), "destroy",
	    GTK_SIGNAL_FUNC(font_browse_destroy), NULL);

	/* Set its filter to show only fixed_width fonts. */
	gtk_font_selection_dialog_set_filter(
	    GTK_FONT_SELECTION_DIALOG(font_browse_w),
	    GTK_FONT_FILTER_BASE,	/* user can't change the filter */
	    GTK_FONT_ALL,		/* bitmap or scalable are fine */
	    NULL,			/* all foundries are OK */
	    NULL,			/* all weights are OK (XXX - normal only?) */
	    NULL,			/* all slants are OK (XXX - Roman only?) */
	    NULL,			/* all setwidths are OK */
	    fixedwidths,		/* ONLY fixed-width fonts */
	    NULL);			/* all charsets are OK (XXX - ISO 8859/1 only?) */

	/* Set the font to the current font.
	   XXX - this doesn't seem to work right. */
	gtk_font_selection_dialog_set_font_name(
	    GTK_FONT_SELECTION_DIALOG(font_browse_w), prefs.gui_font_name);

	/* Set the E_FONT_CALLER_PTR_KEY for the new dialog to point to
	   our caller. */
	gtk_object_set_data(GTK_OBJECT(font_browse_w), E_FONT_CALLER_PTR_KEY,
	    caller);

	/* Set the E_FONT_DIALOG_PTR_KEY for the caller to point to us */
	gtk_object_set_data(GTK_OBJECT(caller), E_FONT_DIALOG_PTR_KEY,
	    font_browse_w);
  
	/* Connect the ok_button to font_browse_ok_cb function and pass along a
	   pointer to the font selection box widget */
	gtk_signal_connect(
	    GTK_OBJECT(GTK_FONT_SELECTION_DIALOG(font_browse_w)->ok_button),
	    "clicked", (GtkSignalFunc)font_browse_ok_cb, font_browse_w);

	/* Connect the cancel_button to destroy the widget */
	gtk_signal_connect_object(
	    GTK_OBJECT(GTK_FONT_SELECTION_DIALOG(font_browse_w)->cancel_button),
	    "clicked", (GtkSignalFunc)gtk_widget_destroy,
	    GTK_OBJECT(font_browse_w));

	/* Catch the "key_press_event" signal in the window, so that we can
	   catch the ESC key being pressed and act as if the "Cancel" button
	   had been selected. */
	dlg_set_cancel(font_browse_w,
	    GTK_FONT_SELECTION_DIALOG(font_browse_w)->cancel_button);

	gtk_widget_show(font_browse_w);
}

static void
font_browse_ok_cb(GtkWidget *w, GtkFontSelectionDialog *fs)
{
	if (temp_gui_font_name != NULL)
		g_free(temp_gui_font_name);
	temp_gui_font_name =
	    g_strdup(gtk_font_selection_dialog_get_font_name(
	      GTK_FONT_SELECTION_DIALOG(fs)));

	gtk_widget_hide(GTK_WIDGET(fs));
	gtk_widget_destroy(GTK_WIDGET(fs));
}

static void
font_browse_destroy(GtkWidget *win, gpointer data)
{
	GtkWidget *caller;

	/* Get the widget that requested that we be popped up, if any.
	   (It should arrange to destroy us if it's destroyed, so
	   that we don't get a pointer to a non-existent window here.) */
	caller = gtk_object_get_data(GTK_OBJECT(win), E_FONT_CALLER_PTR_KEY);

	if (caller != NULL) {
		/* Tell it we no longer exist. */
		gtk_object_set_data(GTK_OBJECT(caller), E_FONT_DIALOG_PTR_KEY,
		    NULL);
	}

	/* Now nuke this window. */
	gtk_grab_remove(GTK_WIDGET(win));
	gtk_widget_destroy(GTK_WIDGET(win));
}

void
gui_prefs_ok(GtkWidget *w)
{
	prefs.gui_scrollbar_on_right = temp_gui_scrollbar_on_right;
	prefs.gui_plist_sel_browse = temp_gui_plist_sel_browse;
	prefs.gui_ptree_sel_browse = temp_gui_ptree_sel_browse;
	prefs.gui_ptree_line_style = temp_gui_ptree_line_style;
	prefs.gui_ptree_expander_style = temp_gui_ptree_expander_style;
	if (prefs.gui_font_name != NULL)
		g_free(prefs.gui_font_name);
	prefs.gui_font_name = g_strdup(temp_gui_font_name);

	gui_prefs_delete(w);
}

void
gui_prefs_save(GtkWidget *w)
{
	gui_prefs_ok(w);
}

void
gui_prefs_cancel(GtkWidget *w)
{
	/* Reset GUI preference values back to what the
	 * current preferences says they should be */
	temp_gui_scrollbar_on_right = prefs.gui_scrollbar_on_right;
	temp_gui_plist_sel_browse = prefs.gui_plist_sel_browse;
	temp_gui_ptree_sel_browse = prefs.gui_ptree_sel_browse;
	temp_gui_ptree_line_style = prefs.gui_ptree_line_style;
	temp_gui_ptree_expander_style = prefs.gui_ptree_expander_style;
	if (temp_gui_font_name != NULL)
		g_free(temp_gui_font_name);
	temp_gui_font_name = g_strdup(prefs.gui_font_name);

	set_scrollbar_placement_all(prefs.gui_scrollbar_on_right);
	set_plist_sel_browse(prefs.gui_plist_sel_browse);
	set_ptree_sel_browse_all(prefs.gui_ptree_sel_browse);
	set_ptree_line_style_all(prefs.gui_ptree_line_style);
	set_ptree_expander_style_all(prefs.gui_ptree_expander_style);

	gui_prefs_delete(w);
}

void
gui_prefs_delete(GtkWidget *w)
{
	GtkWidget *caller = gtk_widget_get_toplevel(w);
	GtkWidget *fs;

	/* Is there a font selection dialog associated with this
	   Preferences dialog? */
	fs = gtk_object_get_data(GTK_OBJECT(caller), E_FONT_DIALOG_PTR_KEY);

	if (fs != NULL) {
		/* Yes.  Destroy it. */
		gtk_widget_destroy(fs);
	}

	if (temp_gui_font_name != NULL) {
		g_free(temp_gui_font_name);
		temp_gui_font_name = NULL;
	}
}