<?php
// +-------------------------------------------------+
// | 2002-2011 PMB Services / www.sigb.net pmb@sigb.net et contributeurs (voir www.sigb.net)
// +-------------------------------------------------+
// $Id: cms_logo.class.php,v 1.4 2012-12-13 14:26:53 arenou Exp $

if (stristr($_SERVER['REQUEST_URI'], ".class.php")) die("no access");

require_once($include_path."/templates/cms/cms_logo.tpl.php");

class cms_logo {
	public $id;		// identifiant de l'objet
	public $type;	// type d'objet
	public $data;	// donnée binaire du logo
	
	public function __construct($id="",$type="section"){
		$this->id= $id;
		$this->type = $type;
		if($this->id){
			$this->fetch_data();
		}
	}
	
	protected function fetch_data(){
		$table=$this->get_sql_table();
		if(!$table) return false;
		$rqt = "select ".$this->type."_logo from ".$table." where id_".$this->type." = '".$this->id."'";
		$res = mysql_query($rqt);
		if(mysql_num_rows($res)){
			$this->data = mysql_result($res,0,0);
		}
	}

	public function get_form(){
		global $msg;
		global $charset;
		global $cms_logo_form_tpl;
		global $cms_logo_form_exist_obj_tpl;
		global $cms_logo_form_new_obj_tpl;
		
		$form = $cms_logo_form_tpl;
		if($this->id){
			$form = str_replace("!!field!!",$cms_logo_form_exist_obj_tpl,$form);
		}else{
			$form = str_replace("!!field!!",$cms_logo_form_new_obj_tpl,$form);
			$form = str_replace("!!js!!","",$form);
		}
		$form = str_replace("!!id!!",$this->id,$form);
		$form = str_replace("!!type!!",$this->type,$form);
		return $form;
	}
	
	public function get_field(){
		global $msg;
		global $charset;
		global $cms_logo_field_tpl;
		
		$field = str_replace("!!type!!",$this->type,$cms_logo_field_tpl);
		
		//si $_FILES n'est pas vide, on a du matos...
		if(count($_FILES)){
			$result = $this->save();
			if($result === true){
				$js = "
				var div_vign = window.parent.document.getElementById('cms_logo_vign');
				var old_img = window.parent.document.getElementById('cms_logo_vign_img');
				div_vign.removeChild(old_img);
				var img = document.createElement('img');
				img.setAttribute('id','cms_logo_vign_img');
				img.setAttribute('class','cms_logo_vign');
				img.setAttribute('src','./cms_vign.php?type=".$this->type."&id=".$this->id."&mode=vign');
				div_vign.appendChild(img);";
			}else{
				$js = "
					alert(\"".$result."\");";
			}
		}else{
			$js = "";
		}
		$field = str_replace("!!js!!",$js,$field);
		return $field;
	}
	
	public function save(){
		global $msg;
		//on commence par regarder ce qu'on nous a donné...
		$mimetype = $_FILES['cms_logo_file']['type'];
		//on ne veut que les images
		if(substr($mimetype,0,5) != "image"){
			return $msg['cms_editorial_form_logo_unsupported_file'];
		}else{
			if(substr($mimetype,6,3) == "png"){
				$data = file_get_contents($_FILES['cms_logo_file']['tmp_name']);
			}else{
				//et que du png...
				$data = $this->convert_to_png($_FILES['cms_logo_file']['tmp_name']);
			}
		}		
		$table=$this->get_sql_table();
		if(!$table) return $msg['cms_editorial_form_logo_cant_save'];
		$rqt = "update ".$table." set ".$this->type."_logo=\"".addslashes($data)."\" where id_".$this->type." = '".$this->id."'";
		$res= mysql_query($rqt);
		if($res){
			return true;
		}else{
			return $msg['cms_editorial_form_logo_cant_save'];
		}
	}
	
	protected function get_sql_table(){
		switch ($this->type){
			case "section" :
				$table = "cms_sections";	
				break;
			case "article" :
				$table = "cms_articles";	
				break;
			default :
				$table ="";
				break;
		}
		return $table;
	}
	
	protected function convert_to_png($picture){
		$data = file_get_contents($picture);
		$src_img = imagecreatefromstring($data);
		$src_x = imagesx($src_img);
		$src_y = imagesy($src_img);
		$dst_img=imagecreatetruecolor($src_x,$src_y);
		ImageSaveAlpha($dst_img, true);
		ImageAlphaBlending($dst_img, false);
		imagefilledrectangle($dst_img,0,0,$src_x,$src_y,imagecolorallocatealpha($dst_img, 0, 0, 0, 127));
		imagecopyresized($dst_img,$src_img,0,0,0,0,$src_x,$src_y,$src_x,$src_y);
		$tmp_path = realpath("./temp");
		imagepng($dst_img,$tmp_path."/tmp_cms_logo");
		$data = file_get_contents($picture);
		unlink($tmp_path."/tmp_cms_logo");
		return $data;
	}
	
	public function show_picture($mode=""){
  		header("Content-Type: image/png");
		
		switch($mode){
			case "small_vign" :
				$this->get_small_vign();
				break;	
			case "vign" :
				$this->get_vign();
				break;
			case "large" :
			default :
				$this->get_large();
				break;
		}
	}
	
	public function get_vign(){
	   $this->resize(100,100);
	}

	public function get_small_vign(){
	   $this->resize(16,16);
	}
	
	public function get_large(){
		$this->resize(0,0);
	}
	
	protected function resize($size_x=0,$size_y=0){
		if($this->data){
			$src_img = imagecreatefromstring($this->data);
			$maxX=$size_x;
			$maxY=$size_y;
			
			if(!$size_x && !$size_y){
				ImageSaveAlpha($src_img, true);
				ImageAlphaBlending($src_img, false);
				imagepng($src_img);
			}else if ($src_img) {
				$rs=$maxX/$maxY;
				$taillex=imagesx($src_img);
				$tailley=imagesy($src_img);
				if (!$taillex || !$tailley) return "" ;
				if (($taillex>$maxX)||($tailley>$maxY)) {
					$r=$taillex/$tailley;
					if (($r<1)&&($rs<1)) {
						//Si x plus petit que y et taille finale portrait 
						//Si le format final est plus large en proportion
						if ($rs>$r) {
							$new_h=$maxY; 
							$new_w=$new_h*$r; 
						} else {
							$new_w=$maxX;
							$new_h=$new_w/$r;
						}
					} else if (($r<1)&&($rs>=1)){ 
						//Si x plus petit que y et taille finale paysage
						$new_h=$maxY;
						$new_w=$new_h*$r;  
					} else if (($r>1)&&($rs<1)) {
						//Si x plus grand que y et taille finale portrait
						$new_w=$maxX;
						$new_h=$new_w/$r;
					} else {
						//Si x plus grand que y et taille finale paysage
						if ($rs<$r) {
							$new_w=$maxX;
							$new_h=$new_w/$r;
						} else {
							$new_h=$maxY;
							$new_w=$new_h*$r;
						}
					}
				} else {
					$new_h = $tailley ;
					$new_w = $taillex ;
				}
				$dst_img=imagecreatetruecolor($new_w,$new_h);
				ImageSaveAlpha($dst_img, true);
				ImageAlphaBlending($dst_img, false);
				imagefilledrectangle($dst_img,0,0,$maxX,$maxY,imagecolorallocatealpha($dst_img, 0, 0, 0, 127));
				imagecopyresized($dst_img,$src_img,0,0,0,0,$new_w,$new_h,ImageSX($src_img),ImageSY($src_img));
				imagepng($dst_img);
			}
		}else{
			print file_get_contents("./images/vide.png");
		}
	}
	
	public function get_vign_url($mode=""){
		global $base_path; 
		return $base_path."/cms_vign.php?type=".$this->type."&id=".$this->id."&mode=".$mode;
	}
}