/*
 *  This file is part of XForms.
 *
 *  XForms is free software; you can redistribute it and/or modify it
 *  under the terms of the GNU Lesser General Public License as
 *  published by the Free Software Foundation; either version 2.1, or
 *  (at your option) any later version.
 *
 *  XForms 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with XForms; see the file COPYING.  If not, write to
 *  the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
 *  MA 02111-1307, USA.
 */


/*
 *  This is a demo that shows the different types of browsers.
 *
 *  This file is part of xforms package
 *  M. Overmars and T.C. Zhao  (1997)
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdio.h>
#include <string.h>
#include "include/forms.h"

FL_FORM *form;
FL_OBJECT *br[ 4 ],
          *exitobj,
          *readout;

static void create_form( void );
static void fill_browsers( void );


/***************************************
 ***************************************/

int
main( int    argc,
	  char * argv[ ] )
{
	fl_initialize( &argc, argv, "FormDemo", 0, 0 );
	create_form( );
	fill_browsers( );
	fl_show_form( form,FL_PLACE_CENTER | FL_FREE_SIZE, FL_TRANSIENT,
				  "All Browsers" );
	fl_do_forms( );
	fl_hide_form( form );
	return 0;
}


static const char *bnames[ ] =
{
    "NORMAL_BROWSER",
	"SELECT_BROWSER",
	"HOLD_BROWSER",
	"MULTI_BROWSER"
};


/***************************************
 ***************************************/

static void
deselect( FL_OBJECT * obj  FL_UNUSED_ARG,
		  long        arg  FL_UNUSED_ARG )
{
	int i;

	for ( i = 0; i < 4; i++ )
		fl_deselect_browser( br[ i ] );
}


/***************************************
 ***************************************/

static void
set_size( FL_OBJECT * obj  FL_UNUSED_ARG,
		  long        arg )
{
	int i;

	for ( i = 0; i < 4; i++ )
		fl_set_browser_fontsize( br[ i ], arg );
}


/***************************************
 ***************************************/

static void
set_style( FL_OBJECT * obj  FL_UNUSED_ARG,
		   long        arg )
{
	int i;

	for ( i = 0; i < 4; i++ )
		fl_set_browser_fontstyle( br[ i ], arg );
}


/***************************************
 ***************************************/

static void
br_callback( FL_OBJECT * ob,
			 long        arg )
{
    char buf[ 1024 ];
    const char *mb[ ] = { "left", "middle", "right",
						  "scroll-up", "scroll-down" };
    int i;

    if (    ( i = fl_mouse_button( ) ) >= FL_LEFT_MOUSE
		 && i <= FL_SCROLLDOWN_MOUSE )
		sprintf( buf, "In %s [%s]: ", bnames[ arg ], mb[ i - FL_LEFT_MOUSE ] );
    else
		sprintf( buf, "In %s: ", bnames[ arg ] );

	if ( ( i = fl_get_browser( ob ) ) )
	{
		strcat( buf, fl_get_browser_line( ob, i > 0 ? i : -i ) );
		strcat( buf, i > 0 ? " was selected" : " was deselected." );
	}

	fl_set_object_label( readout, buf );
}


/***************************************
 ***************************************/

static void
vcallback( FL_OBJECT * ob       FL_UNUSED_ARG,
		   int         topline  FL_UNUSED_ARG,
		   void      * data     FL_UNUSED_ARG )
{
     int i;
	 int yoffset = fl_get_browser_yoffset( br[ 0 ] );

     for ( i = 1; i < 4; i++ )
		 fl_set_browser_yoffset( br[ i ], yoffset ); 
}


/***************************************
 ***************************************/

static void
link_browsers( FL_OBJECT * ob,
			   long        data  FL_UNUSED_ARG )
{
    int sync = fl_get_button( ob );
	int i;

    fl_set_object_label( ob, sync ? "Unlink": "Link" );

    if ( sync )
    {
		int yoffset = fl_get_browser_yoffset( br[ 0 ] );

		for ( i = 1; i < 4; i++ )
		{
			fl_set_browser_vscrollbar( br[ i ], FL_OFF );
			fl_set_browser_yoffset( br[ i ], yoffset );
		}

       fl_set_browser_vscroll_callback( br[ 0 ], vcallback, 0 );
    }
    else
    {
		for ( i = 1; i < 4; i++ )
			fl_set_browser_vscrollbar( br[ i ], FL_ON );

       fl_set_browser_vscroll_callback( br[ 0 ], NULL, 0 );
    }
}


/***************************************
 ***************************************/

static void
create_form( void )
{
	FL_OBJECT *obj;

	form = fl_bgn_form( FL_UP_BOX, 700, 570 );

	readout = fl_add_text( FL_NORMAL_TEXT, 50, 30, 600, 50, "" );
	fl_set_object_lsize( readout, FL_NORMAL_SIZE );
	fl_set_object_lalign( readout, FL_ALIGN_CENTER );
	fl_set_object_lstyle( readout, FL_BOLD_STYLE );
	fl_set_object_boxtype( readout, FL_UP_BOX );
	fl_set_object_color( readout, FL_MAGENTA, FL_MAGENTA );

	br[ 0 ] = obj = fl_add_browser( FL_NORMAL_BROWSER, 20, 120, 150, 290,
									bnames[ 0 ] );
    fl_set_object_callback( obj, br_callback, 0 );

	br[ 1 ] = obj = fl_add_browser( FL_SELECT_BROWSER, 190, 120, 150, 290,
									bnames[ 1 ] );
    fl_set_object_callback( obj, br_callback, 1 );

	br[ 2 ] = obj = fl_add_browser( FL_HOLD_BROWSER, 360, 120, 150, 290,
									bnames[ 2 ] );
    fl_set_object_color( obj, FL_WHITE, FL_GREEN );
    fl_set_object_callback( obj, br_callback, 2 );

	br[ 3 ] = obj = fl_add_browser( FL_MULTI_BROWSER, 530, 120, 150, 290,
									bnames[ 3 ] );
    fl_set_object_color( obj,FL_WHITE, FL_CYAN );
    fl_set_object_callback( obj, br_callback, 3 );

	exitobj = fl_add_button( FL_NORMAL_BUTTON, 560, 510, 120, 30, "Exit" );

	obj = fl_add_button( FL_NORMAL_BUTTON, 560, 460, 120, 30, "Deselect" );
    fl_set_object_callback( obj, deselect, 0 );

	fl_bgn_group( );

	obj = fl_add_lightbutton( FL_RADIO_BUTTON, 20, 500, 100, 30, "Tiny" );
    fl_set_object_lsize( obj, FL_TINY_SIZE );
    fl_set_object_callback( obj, set_size, obj->lsize );

	obj = fl_add_lightbutton( FL_RADIO_BUTTON, 130, 500, 100, 30, "Small" );
    fl_set_object_lsize( obj, FL_SMALL_SIZE );
    fl_set_object_callback( obj, set_size, obj->lsize );
    fl_set_button( obj, 1 );

	obj = fl_add_lightbutton( FL_RADIO_BUTTON, 240, 500, 100, 30, "Normal" );
    fl_set_object_lsize( obj, FL_NORMAL_SIZE );
    fl_set_object_callback( obj, set_size, obj->lsize );

	obj = fl_add_lightbutton( FL_RADIO_BUTTON, 350, 500, 100, 30, "Large" );
    fl_set_object_lsize( obj, FL_LARGE_SIZE );
    fl_set_object_callback( obj, set_size, obj->lsize );

	obj = fl_add_button( FL_BUTTON, 470, 510, 45,30, "Link" );
    fl_set_object_callback( obj, link_browsers, 0 );

	fl_end_group( );

	fl_bgn_group( );

	obj = fl_add_lightbutton( FL_RADIO_BUTTON, 20, 450, 100, 30, "Normal" );
    fl_set_object_callback( obj, set_style, FL_NORMAL_STYLE );
    fl_set_button( obj, 1 );

	obj = fl_add_lightbutton( FL_RADIO_BUTTON, 120, 450, 100, 30, "Bold" );
    fl_set_object_callback( obj, set_style, FL_BOLD_STYLE );

	obj = fl_add_lightbutton( FL_RADIO_BUTTON, 220, 450, 100, 30, "Italic" );
    fl_set_object_callback( obj, set_style, FL_ITALIC_STYLE );

	obj = fl_add_lightbutton( FL_RADIO_BUTTON, 320, 450, 100, 30,
							  "BoldItalic" );
    fl_set_object_callback( obj, set_style, FL_BOLDITALIC_STYLE );

	obj = fl_add_lightbutton( FL_RADIO_BUTTON, 420, 450, 100, 30, "Fixed" );
    fl_set_object_callback( obj, set_style, FL_FIXED_STYLE );

	fl_end_group( );

	fl_end_form( );
}


/***************************************
 ***************************************/

static void
fill_browsers( void )
{
	int i,
		j;
	char buf[ 128 ];

	for ( i = 0; i < 4; i++ )
		for ( j = 1; j <= 100; j++ )
		{
			if ( j == 5 || j == 6 )
				sprintf( buf, "@NLine with qb %3d", j );
			else if ( j == 10 )
				strcpy( buf, "@-trailing text should be ignored" );
			else if ( j == 40 )
				sprintf( buf, "@mLine with qb %3d", j );
			else
				sprintf( buf, "Line with qb %3d",j );

			fl_add_browser_line( br[ i ], buf );
		}
}