class.ilBackgroundPositionInputGUI.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2007 ILIAS open source, University of Cologne            |
        |                                                                             |
        | 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. |
        +-----------------------------------------------------------------------------+
*/

class ilBackgroundPositionInputGUI extends ilFormPropertyGUI
{
        protected $value;
        
        function __construct($a_title = "", $a_postvar = "")
        {
                parent::__construct($a_title, $a_postvar);
                $this->setType("border_width");
                $this->dirs = array("horizontal", "vertical");
        }

        function setHorizontalValue($a_horizontalvalue)
        {
                $this->horizontalvalue = $a_horizontalvalue;
        }

        function getHorizontalValue()
        {
                return $this->horizontalvalue;
        }

        function setVerticalValue($a_verticalvalue)
        {
                $this->verticalvalue = $a_verticalvalue;
        }

        function getVerticalValue()
        {
                return $this->verticalvalue;
        }

        function getValue()
        {
                if ($this->getHorizontalValue() != "")
                {
                        if ($this->getVerticalValue() != "")
                        {
                                return $this->getHorizontalValue()." ".$this->getVerticalValue();
                        }
                        else
                        {
                                return $this->getHorizontalValue();
                        }
                }
                else
                {
                        if ($this->getVerticalValue() != "")
                        {
                                return "left ".$this->getVerticalValue();
                        }
                }
                return "";
        }
        
        function setValue($a_val)
        {
                $a_val = trim($a_val);
                $a_val_arr = explode(" ", $a_val);
                $hor = trim($a_val_arr[0]);
                $ver = trim($a_val_arr[1]);
                if ($hor == "center" && $ver == "")
                {
                        $ver = "center";
                }
                $this->setHorizontalValue($hor);
                $this->setVerticalValue($ver);
        }
        
        function checkInput()
        {
                global $lng;
                
                foreach ($this->dirs as $dir)
                {
                        $type = $_POST[$this->getPostVar()][$dir]["type"] = 
                                ilUtil::stripSlashes($_POST[$this->getPostVar()][$dir]["type"]);
                        $num_value = $_POST[$this->getPostVar()][$dir]["num_value"] = 
                                trim(ilUtil::stripSlashes($_POST[$this->getPostVar()][$dir]["num_value"]));
                        $num_unit = $_POST[$this->getPostVar()][$dir]["num_unit"] = 
                                trim(ilUtil::stripSlashes($_POST[$this->getPostVar()][$dir]["num_unit"]));
                        $pre_value = $_POST[$this->getPostVar()][$dir]["pre_calue"] = 
                                ilUtil::stripSlashes($_POST[$this->getPostVar()][$dir]["pre_value"]);
                                
                        /*
                        if ($this->getRequired() && trim($num_value) == "")
                        {
                                $this->setAlert($lng->txt("msg_input_is_required"));
        
                                return false;
                        }*/
                        
                        if (!is_numeric($num_value) && trim($num_value) != "")
                        {
                                $this->setAlert($lng->txt("sty_msg_input_must_be_numeric"));
                                return false;
                        }
                        
                        $value = "";
                        if ($type == "numeric")
                        {
                                if ($num_value != "")
                                {
                                        $value = $num_value.$num_unit;
                                }
                        }
                        else
                        {
                                $value = $pre_value;
                        }
                        
                        if (trim($value) != "")
                        {
                                switch ($dir)
                                {
                                        case "horizontal": $this->setHorizontalValue($value); break;
                                        case "vertical": $this->setVerticalValue($value); break;
                                }
                        }
                        
                }
                
                return true;
        }

        function insert(&$a_tpl)
        {
                global $lng;
                
                $layout_tpl = new ilTemplate("tpl.prop_hv_layout.html", true, true, "Services/Style");
                
                foreach ($this->dirs as $dir)
                {
                        $tpl = new ilTemplate("tpl.prop_background_position.html", true, true, "Services/Style");
                        $unit_options = ilObjStyleSheet::_getStyleParameterNumericUnits();
                        $pre_options = ilObjStyleSheet::_getStyleParameterValues("background-position");
                        $pre_options = $pre_options[$dir];
                        switch($dir)
                        {
                                case "horizontal": $value = strtolower(trim($this->getHorizontalValue())); break;
                                case "vertical": $value = strtolower(trim($this->getVerticalValue())); break;
                        }
        
                        if (in_array($value, $pre_options))
                        {
                                $current_type = "pre";
                                $tpl->setVariable("PREDEFINED_SELECTED", 'checked="checked"');
                        }
                        else
                        {
                                $current_type = "unit";
                                $tpl->setVariable("NUMERIC_SELECTED", 'checked="checked"');

                                $current_unit = "";
                                foreach ($unit_options as $u)
                                {
                                        if (substr($value, strlen($value) - strlen($u)) == $u)
                                        {
                                                $current_unit = $u;
                                        }
                                }
                                $disp_val = substr($value, 0, strlen($value) - strlen($current_unit));
                                if ($current_unit == "")
                                {
                                        $current_unit = "px";
                                }
                                $tpl->setVariable("VAL_NUM", $disp_val);
                        }
                        
                        foreach ($unit_options as $option)
                        {
                                $tpl->setCurrentBlock("unit_option");
                                $tpl->setVariable("VAL_UNIT", $option);
                                $tpl->setVariable("TXT_UNIT", $option);
                                if ($current_type == "unit" && $current_unit == $option)
                                {
                                        $tpl->setVariable("UNIT_SELECTED", 'selected="selected"');
                                }
                                $tpl->parseCurrentBlock();
                        }
                        
                        foreach ($pre_options as $option)
                        {
                                $tpl->setCurrentBlock("pre_option");
                                $tpl->setVariable("VAL_PRE", $option);
                                $tpl->setVariable("TXT_PRE", $option);
                                if ($current_type == "pre" && $value == $option)
                                {
                                        $tpl->setVariable("PRE_SELECTED", 'selected="selected"');
                                }
                                $tpl->parseCurrentBlock();
                        }

                        $tpl->setVariable("POSTVAR", $this->getPostVar());
                        $tpl->setVariable("TXT_DIR", $lng->txt("sty_$dir"));
                        $tpl->setVariable("DIR", $dir);
                        
                        $layout_tpl->setVariable(strtoupper($dir), $tpl->get());
                }
                $layout_tpl->setVariable("COLSPAN", "2");
                
                $a_tpl->setCurrentBlock("prop_generic");
                $a_tpl->setVariable("PROP_GENERIC", $layout_tpl->get());
                $a_tpl->parseCurrentBlock();
        }

        function setValueByArray($a_values)
        {
                global $ilUser;
                
                if ($a_values[$this->getPostVar()]["horizontal"]["type"] == "predefined")
                {
                        $this->setHorizontalValue($a_values[$this->getPostVar()]["horizontal"]["pre_value"]);
                }
                else
                {
                        $this->setHorizontalValue($a_values[$this->getPostVar()]["horizontal"]["num_value"].
                                $a_values[$this->getPostVar()]["horizontal"]["num_unit"]);
                }
                if ($a_values[$this->getPostVar()]["vertical"]["type"] == "predefined")
                {
                        $this->setVerticalValue($a_values[$this->getPostVar()]["vertical"]["pre_value"]);
                }
                else
                {
                        $this->setVerticalValue($a_values[$this->getPostVar()]["vertical"]["num_value"].
                                $a_values[$this->getPostVar()]["vertical"]["num_unit"]);
                }
        }

}