18/02/2004, 14:00
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 | | | Fecha de Ingreso: octubre-2001
Mensajes: 1.621
Antigüedad: 23 años, 4 meses Puntos: 5 | |
buenas payo22, no tiene que ser por comando  jeje puedes hacer la imagen .gif a .xpm con PHP, lo que tienes es que generar el algoritmo para generar ese .xpm
Jeje pero tranquilo que no hay que reinventar la rueda  hace unas semanas estube hablando con un colega en la lista de desarrollo de PHP-GTK sobre este mismo problema y me paso un codigo que hizo el, aqui te lo dejo para que lo veas
Esta es la libreria Código PHP: <?php
/**
* function set for image manipulation
* @author Jonathan Gotti <[email protected]>
* @copyright © 2004 Jonathan Gotti
* @category images
* @license [url]http://opensource.org/licenses/lgpl-license.php[/url] GNU Lesser
General Public Licence
*/
/**
* get the palette
* @author [email][email protected][/email]
* @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 [email][email protected][/email]
* @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 [email][email protected][/email]
* @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 [email][email protected][/email]
* @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;
}
?> Y esto su forma de uso: Código PHP: <?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
$pix = Gdk::pixmap_create_from_xpm_d($gdkwindow, null, $xpm_d);
$pixmapwid = &new GtkPixmap($pix[0], $pix[1]);
//and then do what you want and be happy
?> Espero que te sea de ayuda
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