<?php





/**


 *  File: calendar.php | (c) dynarch.com 2004


 *  Distributed as part of "The Coolest DHTML Calendar"


 *  under the same terms.


 *  -----------------------------------------------------------------


 *  This file implements a simple PHP wrapper for the calendar.  It


 *  allows you to easily include all the calendar files and setup the


 *  calendar by instantiating and calling a PHP object.


 */





define('NEWLINE', "\n");





class DHTML_Calendar {


    var $calendar_lib_path;





    var $calendar_file;


    var $calendar_lang_file;


    var $calendar_setup_file;


    var $calendar_theme_file;


    var $calendar_options;





    function DHTML_Calendar($calendar_lib_path = '/calendar/',


                            $lang              = 'en',


                            $theme             = 'calendar-win2k-1',


                            $stripped          = true) {


        if ($stripped) {


            $this->calendar_file = 'calendar_stripped.js';


            $this->calendar_setup_file = 'calendar-setup_stripped.js';


        } else {


            $this->calendar_file = 'calendar.js';


            $this->calendar_setup_file = 'calendar-setup.js';


        }


        $this->calendar_lang_file = 'lang/calendar-' . $lang . '.js';


        $this->calendar_theme_file = $theme.'.css';


        $this->calendar_lib_path = preg_replace('/\/+$/', '/', $calendar_lib_path);


        $this->calendar_options = array('ifFormat' => '%Y/%m/%d',


                                        'daFormat' => '%Y/%m/%d');


    }





    function set_option($name, $value) {


        $this->calendar_options[$name] = $value;


    }





    function load_files() {


        echo $this->get_load_files_code();


    }





    function get_load_files_code() {


        $code  = ( '<link rel="stylesheet" type="text/css" media="all" href="' .


                   $this->calendar_lib_path . $this->calendar_theme_file .


                   '" />' . NEWLINE );


        $code .= ( '<script type="text/javascript" src="' .


                   $this->calendar_lib_path . $this->calendar_file .


                   '"></script>' . NEWLINE );


        $code .= ( '<script type="text/javascript" src="' .


                   $this->calendar_lib_path . $this->calendar_lang_file .


                   '"></script>' . NEWLINE );


        $code .= ( '<script type="text/javascript" src="' .


                   $this->calendar_lib_path . $this->calendar_setup_file .


                   '"></script>' );


        return $code;


    }





    function _make_calendar($other_options = array()) {


        $js_options = $this->_make_js_hash(array_merge($this->calendar_options, $other_options));


        $code  = ( '<script type="text/javascript">Calendar.setup({' .


                   $js_options .


                   '});</script>' );


        return $code;


    }





    function make_input_field($cal_options = array(), $field_attributes = array()) {


        $id = $this->_gen_id();


        $attrstr = $this->_make_html_attr(array_merge($field_attributes,


                                                      array('id'   => $this->_field_id($id),


                                                            'type' => 'text')));


        echo '<input ' . $attrstr .'/>';


        echo '<a href="#" id="'. $this->_trigger_id($id) . '">' .


            '<img align="middle" border="0" src="' . $this->calendar_lib_path . 'img.gif" alt="" /></a>';





        $options = array_merge($cal_options,


                               array('inputField' => $this->_field_id($id),


                                     'button'     => $this->_trigger_id($id)));


        echo $this->_make_calendar($options);


    }





    /// PRIVATE SECTION





    function _field_id($id) { return 'f-calendar-field-' . $id; }


    function _trigger_id($id) { return 'f-calendar-trigger-' . $id; }


    function _gen_id() { static $id = 0; return ++$id; }





    function _make_js_hash($array) {


        $jstr = '';


        reset($array);


        while (list($key, $val) = each($array)) {


            if (is_bool($val))


                $val = $val ? 'true' : 'false';


            else if (!is_numeric($val))


                $val = '"'.$val.'"';


            if ($jstr) $jstr .= ',';


            $jstr .= '"' . $key . '":' . $val;


        }


        return $jstr;


    }





    function _make_html_attr($array) {


        $attrstr = '';


        reset($array);


        while (list($key, $val) = each($array)) {


            $attrstr .= $key . '="' . $val . '" ';


        }


        return $attrstr;


    }


};





?>