/adei/trunk

<?php

require($ADEI_ROOTDIR . "/classes/jpgraph.php");

class DRAWText {

 var $req;

 var $height, $width;

 var $graph;

 var $tmpfile;

 var $ready;

 function __construct(REQUEST $req = NULL) {

    global $TMP_PATH;

    global $GRAPH_DEFAULT_HEIGHT;

    global $GRAPH_DEFAULT_WIDTH;

    if ($req) $this->req = $req;

    else $this->req = new REQUEST();

    $this->ready = false;

    if (isset($this->req->props['height'])) $this->height = $this->req->props['height'];

    else $this->height = $GRAPH_DEFAULT_HEIGHT;

    if (isset($this->req->props['width'])) $this->width = $this->req->props['width'];

    else $this->width = $GRAPH_DEFAULT_WIDTH;

    $this->tmpfile = $this->GetTmpFile();

 }

 function GetTmpFile() {

    global $ADEI_SESSION;

    global $TMP_PATH;

    $dir = "clients/" . $ADEI_SESSION . "/messages/";

    if (!is_dir($TMP_PATH . "/" .  $dir)) {

	if (!@mkdir($TMP_PATH . "/" . $dir, 0755, true)) 

	    throw new ADEIException(translate("DRAWText class have not access to the temporary directory"));

    }

    return $dir . time() . "_" . rand() . ".png";

 }

 function CreateMessage($header, $msg) {

    $this->graph = new CanvasGraph($this->width, $this->height, 'auto');

    $this->graph->SetMargin(5,11,6,11);

    $this->graph->SetShadow();

    $this->graph->SetMarginColor( "teal");

    $this->graph->InitFrame(); 

    $text_width = $this->width - 50;

    if ($text_width < 100) return;

    $text = new Text($msg, 25, 25);

    $text->SetFont(FF_ARIAL, FS_NORMAL, 24);

//    $text->Align('left', 'top');

//    $text->ParagraphAlign('left'); 

//    $text->SetBox( "white", "black","gray"); 

    $width = $text->GetWidth($this->graph->img);

    if ($width > $text_width) {

	$char_width = ceil($width / strlen($msg));

	$cpl = $text_width / $char_width;

/*

	Does not taken into the account by GetWidth function

	$text->SetWordWrap($cpl);

*/

	$wmsg = wordwrap($msg, $cpl, "\n", true);

	$text->Set($wmsg);

	$width = $text->GetWidth($this->graph->img);

        while (($width > $text_width)&&($cpl>10)) {

	    $cpl-=$cpl/10;

	    $wmsg = wordwrap($msg, $cpl, "\n", true);

	    $text->Set($wmsg);

	    $width = $text->GetWidth($this->graph->img);

	}

    }

    $text->Stroke( $this->graph->img); 

 }

 function Save($file = false) {

    global $TMP_PATH;

    if ($this->ready) {

	if ($file) {

	    copy($TMP_PATH . "/" .  $this->tmpfile, $file);

	    return true;

	}

	return $this->tmpfile;

    }

    if ($file) {

        $this->graph->Stroke($file);

	return true;

    }

    $fp = fopen($TMP_PATH . "/" . $this->tmpfile . ".tmp", "w+");

    if ($fp) flock($fp, LOCK_EX);

    $this->graph->Stroke($TMP_PATH . "/" . $this->tmpfile);

    if ($fp) fclose($fp);

    return $this->tmpfile;

 }

 static function Display($file = false) {

    global $TMP_PATH;

    if ($file) {

	if (preg_match("/^[A-Za-z0-9\/_]\.png$/",$str)) return false;

	$fp = fopen($TMP_PATH . "/" . $file . ".tmp", "w+");

	if ($fp) flock($fp, LOCK_SH);

	$res =  @readfile($TMP_PATH . "/" . $file);

        if ($fp) fclose($fp);

	return $res;

    }

    return false;    

 }

}

?>