if ( $horz_pos == POS_CENTER )
$x_pos = ceil ( $thumb_width / 2 - $logo_width / 2 );
elseif ( $horz_pos == POS_RIGHT )
$x_pos = $thumb_width - $logo_width;
else
$x_pos = 0;
if ( ! imagecopy ( $thumb_img, $logo_image, $x_pos, $y_pos, 0, 0,
$logo_width, $logo_height ) )
trigger_error( E_004, E_USER_ERROR );
}
/*
Description:
Adds label text to thumbnail.
Prototype:
void AddLabel ( int thumb_width, int thumb_height, resource &thumb_img )
Parameters:
thumb_width - width of thumbnail image
thumb_height - height of thumbnail image
thumb_img - thumbnail image identifier
*/
function AddLabel ( $thumb_width, $thumb_height, &$thumb_img )
{
extract ( $this->label );
list( $r, $g, $b ) = $this->ParseColor ( $color );
$color_id = imagecolorallocate ( $thumb_img, $r, $g, $b );
$text_box = imagettfbbox ( $size, $angle, $font, $text );
$text_width = $text_box [ 2 ] - $text_box [ 0 ];
$text_height = abs ( $text_box [ 1 ] - $text_box [ 7 ] );
if ( $vert_pos == POS_TOP )
$y_pos = 5 + $text_height;
elseif ( $vert_pos == POS_CENTER )
$y_pos = ceil( $thumb_height / 2 - $text_height / 2 );
elseif ( $vert_pos == POS_BOTTOM )
$y_pos = $thumb_height - $text_height;
if ( $horz_pos == POS_LEFT )
$x_pos = 5;
elseif ( $horz_pos == POS_CENTER )
$x_pos = ceil( $thumb_width / 2 - $text_width / 2 );
elseif ( $horz_pos == POS_RIGHT )
$x_pos = $thumb_width - $text_width -5;
imagettftext ( $thumb_img, $size, $angle, $x_pos, $y_pos,
$color_id, $font, $text );
}
/*
Description:
Output thumbnail image into the browser.
Prototype:
void OutputThumbImage ( resource dest_image )
Parameters:
dest_img - thumbnail image identifier
*/
function OutputThumbImage ( $dest_image )
{
imageinterlace ( $dest_image, $this->interlace );
header ( 'Content-type: ' . $this->dest_type );
if ( $this->dest_type == THUMB_JPEG )
imagejpeg ( $dest_image, '', $this->jpeg_quality );
elseif ( $this->dest_type == THUMB_GIF )
imagegif($dest_image);
elseif ( $this->dest_type == THUMB_PNG )
imagepng ( $dest_image );
}
/*
Description:
Save thumbnail image into the disc file.
Prototype:
void SaveThumbImage ( string image_file, resource dest_image )
Parameters:
image_file - destination file name
dest_img - thumbnail image identifier
*/
function SaveThumbImage ( $image_file, $dest_image )
{
imageinterlace ( $dest_image, $this->interlace );
if ( $this->dest_type == THUMB_JPEG )
imagejpeg ( $dest_image, $this->dest_file, $this->jpeg_quality );
elseif ( $this->dest_type == THUMB_GIF )
imagegif ( $dest_image, $this->dest_file );
elseif ( $this->dest_type == THUMB_PNG )
imagepng ( $dest_image, $this->dest_file );
}
// ****************************************************************************
// PUBLIC METHODS
// ****************************************************************************
/*
Description:
Output thumbnail image into the browser or disc file according to the
values of parameters.
Prototype:
void Output ( )
*/
function Output()
{
$src_image = $this->LoadImage($this->src_file, $src_width, $src_height);
$dest_size = $this->GetThumbSize($src_width, $src_height);
$dest_width=$dest_size[0];
$dest_height=$dest_size[1];
$dest_image=imagecreatetruecolor($dest_width, $dest_height);
if (!$dest_image)
trigger_error(E_005, E_USER_ERROR);
imagecopyresampled( $dest_image, $src_image, 0, 0, 0, 0,
$dest_width, $dest_height, $src_width, $src_height );
if ($this->logo['file'] != NO_LOGO)
$this->AddLogo($dest_width, $dest_height, $dest_image);
if ($this->label['text'] != NO_LABEL)
$this->AddLabel($dest_width, $dest_height, $dest_image);