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PHP-GTK 1

Version 1.0.*

unixtimestamp2date

seg, 08/03/2004 - 12:04 — PHP-GTK editors

The application converts from UNIX timestamp in local date/time and vice-versa.

Newsletter Manager

dom, 29/02/2004 - 06:25 — PHP-GTK editors

Did you ever want to offer a real Newsletter-Service on your Website but didn't know how to realize this easily?

Display non XPM images using gd

sab, 20/12/2003 - 00:00 — Jonathan Gotti

This method is not perfect but it works fine for buttons icons or little images and use like said the gd library to work. No need for imagemagick or gdkpixbuf extensions anymore ! It's he only way I found to achieve this on windows OS but it works under linux too. It supports jpeg, png, and gif conversion and is quite easy to use. You need to include the functions in your code and then use it like this:

<?php
$file = "path to your image file a gif for this example";

if(! $img = imagecreatefromgif($file))
  echo "can't load the image $file\n";

$xpm_d = image2xpm_d($img);//there's a file convertion function too
imagedestroy($img);//don't forget this one to free memory

$pix = Gdk::pixmap_create_from_xpm_d($gdkwindow, null, $xpm_d);
$pixmapwid = &new GtkPixmap?($pix[0], $pix[1]);
//and then do what you want
?>

code to include

<?php
/**
function set for image manipulation
@author Jonathan Gotti <nathan at the-ring dot homelinux dot net>
@copyright &copy; 2004 Jonathan Gotti
@category images
@license http://opensource.org/licenses/lgpl-license.php GNU Lesser
General Public Licence
*/
/**
get the palette
@author jonathan.gotti@free.fr
@date 2003-12-20
@param ressource image $img
@return array
*/
function imagegetpalette($img){
  $width = imagesx($img);
  $height= imagesy($img);
  for($i=0;$i<imagecolorstotal($img);$i++){
    $colors[$i]=imagecolorsforindex($img,$i);
  }
  return $colors;
}
/**
get a xpm style palette from a gd one
@author jonathan.gotti@free.fr
@date 2003-12-20
@param array $gdpalette
@param string $indexed_type 'gd' keep the gd_index,'xpm' indexed by
       xpm char code
@param string $value_type 'char_code' the xpm char code index, 'color'
       the xpm color value,'both' associated value is are array containing xpm
       char code and xpm color value
@param array $trans array of transparent color values
@return array
*/
function gd2xpmpalette($gdpalette,$indexed_type='xpm',$value_type='color'){
  $nb_colors = count($gdpalette);
  //initialize char array if needed
  if($indexed_type=='xpm' || $value_type != 'color'){
    $first_char = 48;//lowest used ASCII char code
    $last_char = 126;//highest used ASCII char code
    //Thanks to my friend RHONONO for the next line
    $nb_char= intval(log($nb_colors)/log($last_char-$first_char)) +1;
    for($i=0;$i<=$nb_char;$i++){//initialize array of char
      $chars[$i]=$first_char;
    }
  }

  foreach($gdpalette as $gdindex => $gdcolor){
    //recompose xpm character coding only if needed
    if($indexed_type=='xpm' || $value_type!='color'){
      $char_code = null;//initialise char_code
      for($i=0;$i<$nb_char;$i++){//increment other chars
        $chars[0]++;//increment chars
        if($chars[$i]>$last_char){//check chars are in the good range
          $chars[$i]=$first_char;
          $chars[$i+1]++;
        }
        $char_code = chr($chars[$i]) . $char_code ;
      }
    }
    if($indexed_type == 'xpm')//choose indexed type
      $outindex = $char_code;
    else//assume gd indexed wanted
      $outindex = $gdindex;

    //the val according to it
    switch($value_type){
      case 'color':
        if($gdcolor['alpha']>=127)//keep transparent on palette image
          $out[$outindex] = 'None';
        else
          $out[$outindex] = strtoupper('#'.
        zero_fill(dechex($gdcolor['red']),2).
        zero_fill(dechex($gdcolor['green']),2).
        zero_fill(dechex($gdcolor['blue']),2));
        break;
      case 'char_code':
        $out[$outindex] = $char_code;
        break;
      case 'both':
        if($gdcolor['alpha']>=127)//keep transparent on palette image
          $out[$outindex] = array(0=>$char_code,1=>'None');
        else
          $out[$outindex] = array( 0=>$char_code,
                                  1=>strtoupper('#'.zero_fill(dechex($gdcolor['red']),2).
                                  zero_fill(dechex($gdcolor['green']),2).
                                  zero_fill(dechex($gdcolor['blue']),2)));
        break;
    }
  }
  return $out;
}

/**
get xpm_data from gd image resource
@author jonathan.gotti@free.fr
@date 2003-12-20
@param resource gd image $img
@return xpm data
*/
function image2xpm_d($img,$trans=TRUE){
  $w = imagesx($img);
  $h = imagesy($img);
  //the first case is only for PNG with indexed palette
  if(imageistruecolor($img) && $trans){
    //create an indexed palette copy of $img
    //after various test best results are the 3 next lines
    //could be fine to have a better way
    $imgtmp = imagecreatetruecolor($w,$h);
    imagecopymerge($imgtmp,$img,0,0,0,0,$w,$h,100);
    imagetruecolortopalette($imgtmp,TRUE,255);//keep an index for trans

    //set the trans color to a known one
    $transindex = imagecolorallocate($imgtmp,1,1,1);
    $transindex = imagecolortransparent($imgtmp,$transindex);

    //get all palette information needed
    $gdpalette = imagegetpalette($imgtmp);
    $palette = gd2xpmpalette($gdpalette,'gd','both');

    //image definition
    list($color0k,$color0v )= each($palette);
    $xpm_d[0]= "$w $h ".count($palette)." ".strlen($color0v[0]);

    foreach($palette as $color){//recompose palette_data to xpm
      $xpm_d[]=$color[0]." c ".$color[1];
    }

    for($y=0;$y<$h;$y++){//recompose image
      $row = null;
      for($x=0;$x<$w;$x++){
        //obtain transparency from the original image
        $color = imagecolorsforindex($img,imagecolorat($img,$x,$y));
        $index = imagecolorat($imgtmp,$x,$y);
        if($color['alpha']>126)
          $row .= $palette[$transindex][0];
        else
          $row .= $palette[$index][0];
      }
      $xpm_d[]=$row;
    }
  }else{//non true color png will use this case
    if(imageistruecolor($img))
      imagetruecolortopalette($img,TRUE,255);

    $gdpalette = imagegetpalette($img);
    $palette = gd2xpmpalette($gdpalette,'gd','both');

    list($color0k,$color0v )= each($palette);
    $xpm_d[0]= "$w $h ".count($palette)." ".strlen($color0v[0]);

    foreach($palette as $color){//recompose palette_data
      $xpm_d[]=$color[0]." c ".$color[1];
    }

    for($y=0;$y<$h;$y++){//recompose image
      $row = null;
      for($x=0;$x<($deletelastcol?($w-1):$w);$x++){
        $row .= $palette[imagecolorat($img,$x,$y)][0];
      }
      $xpm_d[]=$row;
    }
  }

  if($imgtmp)
    imagedestroy($imgtmp);

  return $xpm_d;
}

/**
write an xpm file from xpm data
@author jonathan.gotti@free.fr
@date 2003-12-20
@param resource gd image $img
@return xpm data
*/
function xpm_d2file($xpm_d,$file){
  if(! $f = @fopen($file,'w'))
    return FALSE;
  fputs($f,"/* XPM */\nstatic char * ".basename($file)."[] = {\n");
  foreach($xpm_d as $k => $row){
    fputs($f,"\"$row\",");
    fputs($f,"\n");
  }
  $pos = ftell($f);
  fputs($f,"};");
  fclose($f);
  return TRUE;
}

/**
left_fill with zero
@param int|str $val to zerofill
@param int $nbchar
@return str
*/
function zero_fill($val,$nbchar=3){
  settype($val,'string');
  $len = strlen($val);
  for($i=0;$i<($nbchar-$len);$i++){
    $val = "0$val";
  }
  return $val;
}
?>

if you think of a better way to do this or any enhancement please mail me i'll be very very happy.

Ledger: an account/project finance management software

dom, 20/07/2003 - 01:05 — PHP-GTK editors

This was a small account/project finance management software written in PHP, GTK and ODBC.

qpoq : php open query

seg, 14/07/2003 - 14:30 — PHP-GTK editors

ODBC connection tool. Simple design - only 4 files so is useful as a tutorial for beginners as well as experienced users who want to re-work it

Nova

ter, 01/04/2003 - 13:14 — PHP-GTK editors

Nova is an open source peer to peer client based off GnucDNA and uses the Gnutella network.

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