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|  [Erledigt] Transparente Runde Ecken bei Thumbnial realisieren
Hallo Leute,
wie der Titel schon ausagt, möchte ich gerne bei generierten Thumbnials transparente runde ecken realisieren. Mir steht GD 2 zur verfügung.
Da ich leider keine Ahnung davon habe, wie ich das in etwa realisieren kann, hoffe ich auf euere unterstützung. Ob das jetzt das richtige Forum ist, weiß ich auch nicht genau.
Hier ist die klasse zum erstellen der Thumbnails (zum jetzigen Status): PHP-Code: error_reporting( E_ALL | E_STRICT );
class Thumbnail
{
protected $new_image = 0;
protected $old_image = 0;
protected $old_dimensions = array( );
protected $new_dimensions = array( );
protected $cache_dir = '';
protected $cache_output = true;
protected $border_color = '#000000'; // default black
protected $border_size = 0;
protected $round_corners = 0;
protected $round_corners_color = '#000000';
protected $type = 'gif';
protected $path = ''; // The path to the original image
protected $add_sourceinfo = 0; // Add Sourcefile info (Filename, Source Dimensions and Filesize
protected $filename = '';
/*
** Constructor funktion. It Set some variables
**
** @param : String $path => The orignal image path to open.
** @param : String $type => The Output type (png,gif,jpeg)
**
** @global : Int $sdasd => asdasdasd
**
** return : Void
** access : Public
*/
public function __construct( $path = '', $type = 'source' )
{
$this->type = ( in_array( strtolower( $type ), array( 'gif', 'png', 'jpeg', 'bmp', 'source' ) ) ) ? strtolower( $type ) : 'source';
$this->path = $path;
if ( ! $this->path || ! file_exists( $this->path ) )
{
$this->Error( 'You must define the original Image for create an thumbnial' );
return false;
}
return;
}
/*
** Function to manipulating the Dimensions of the image, one of the paramter must be given...
**
** @param : String $path => The orignal image path to open.
** @param : String $type => The Output type (png,gif,jpeg)
**
** @global : Int $sdasd => asdasdasd
**
** return : Void
** access : Public
*/
public function SetDimensions( $p = false, $w = false, $h = false )
{
if ( ! $w && ! $h && ! $p )
$this->Error( 'You must set the dimensions for the image!' );
// Create the New Dimensions with the max parameter (must be given)
$this->new_dimensions = array(
'p' => $p,
'w' => $w,
'h' => $h,
);
if ( $p && ! $h && ! $w )
$this->_CalculateDimensions( 'p' );
else if ( $w && ! $h && ! $p )
$this->_CalculateDimensions( 'w' );
else if ( $h && ! $w && ! $p )
$this->_CalculateDimensions( 'h' );
else if ( $h && $w && ! $p )
$this->_CalculateDimensions( 'wh' );
return;
}
public function SetBorder( $size = 1, $color = '#000000' )
{
$this->border_color = $color;
$this->border_size = (int) $size;
}
public function SetRoundCorner( $r, $color = true )
{
$this->round_corners = $r;
$this->round_corners_color = ( $color === true ) ? 'transparent' : $color;
}
public function SetCache( $path, $filename = false, $output = true )
{
$this->cache_dir = ( file_exists( $path ) ) ? $path : '';
if ( $filename !== false )
$this->save_name = basename( $filename );
$this->cache_output = $output;
}
public function Execute( )
{
if ( ! sizeof( $this->new_dimensions ) || ! sizeof( $this->old_dimensions ) )
$this->Error( 'Cant Create Thumbnial. Dimensions not set!' );
$this->_CreateThumbnial( );
return true;
}
private function _CreateThumbnial( )
{
//
// Ok now we can create the image...
//
// First get supportet image types
//
$this->support = $this->_GetSupportedImageTypes( );
//
// No GD libery, ok so we can do here nothing more. Exit nicely
//
if ( $this->support[ 'gd_version' ] === false || $this->support[ 'type' ] === false )
exit();
//
// Open Source Image
//
$this->_ObenSourceImage( );
//
// Create new Image width the calculated Informations
//
$gd2 = ( $this->support[ 'gd_version' ] == 2 ) ? true : false;
$this->new_image = ( $gd2 ) ? imagecreatetruecolor( $this->new_dimensions[ 'width' ], $this->new_dimensions[ 'height' ] ) : imagecreate( $this->new_dimensions[ 'width' ], $this->new_dimensions[ 'height' ] );
//
// Ok now we can copy
//
$function = ( $gd2 ) ? 'imagecopyresampled' : 'imagecopyresized';
$function( $this->new_image, $this->old_image, 0, 0, 0, 0, $this->new_dimensions[ 'width' ], $this->new_dimensions[ 'height' ], $this->old_dimensions[ 'width' ], $this->old_dimensions[ 'height' ] );
//
// Ok the Imahe is now fish
// We can destroy the source image
//
imagedestroy( $this->old_image );
//
// Must we add Some Border arround the Image
//
if ( $this->border_size )
$this->_AddBorder( );
//
// Must we add some round corners?
//
if ( $this->round_corners )
$this->_AddRoundCorner( );
//
// Have we to add the SourceFile Informations?
//
$this->_Output( );
return true;
}
private function _AddBorder( )
{
}
private function _AddRoundCorner( )
{
$round = $this->round_corners;
$border = $this->border_size;
$color = imagecolorallocate( $this->new_image, 255, 255, 255 );
for( $i = 0; $i < $round; $i ++ )
{ // x1 y1 x2, y2
imageline( $this->new_image, 0, $i, $i, 0, $color );
}
}
private function _Output( )
{
$type = ( $this->type == 'source' ) ? $this->support[ 'type' ] : $this->type;
$destination_path = ( $this->cache_dir ) ? ( ( $this->filename ) ? $this->filename : md5( basename( $this->path ) ) . '.' . $type ) : '';
switch( $type )
{
case 'gif' :
//
// Send Header
//
if ( ! $this->cache_dir || ( $this->cache_dir && $this->cache_output ) )
header( 'Content-type: image/gif' );
if ( $this->cache_dir )
imagegif( $this->new_image, $destination_path );
if ( ( $this->cache_dir && $this->cache_output ) || ! $this->cache_dir )
imagegif( $this->new_image );
break;
case 'png' :
//
// Send Header
//
if ( ! $this->cache_dir || ( $this->cache_dir && $this->cache_output ) )
header( 'Content-type: image/png' );
if ( $this->cache_dir )
imagepng( $this->new_image, $destination_path );
if ( ( $this->cache_dir && $this->cache_output ) || ! $this->cache_dir )
@imagepng( $this->new_image );
break;
case 'jpg' :
//
// Send Header
//
if ( ! $this->cache_dir || ( $this->cache_dir && $this->cache_output ) )
header( 'Content-type: image/jpeg' );
if ( $this->cache_dir )
imagejpeg( $this->new_image, $destination_path, 100 );
if ( ( $this->cache_dir && $this->cache_output ) || ! $this->cache_dir )
@imagejpeg( $this->new_image );
break;
case 'bmp' :
//
// Send Header
//
if ( ! $this->cache_dir || ( $this->cache_dir && $this->cache_output ) )
header( 'Content-type: image/bmp' );
if ( $this->cache_dir )
imagewbmp( $this->new_image, $destination_path );
if ( ( $this->cache_dir && $this->cache_output ) || ! $this->cache_dir )
imagewbmp( $this->new_image );
break;
default:
//exit();
break;
}
//
// Destroy the thumb from memory
//
imagedestroy( $this->new_image );
}
private function _ObenSourceImage( )
{
switch ( $this->support[ 'type' ] )
{
case 'gif' :
$this->old_image = @imagecreatefromgif( $this->path );
break;
case 'png' :
$this->old_image = @imagecreatefrompng( $this->path );
break;
case 'jpg' :
$this->old_image = @imagecreatefromjpeg( $this->path );
break;
case 'bmp' :
$this->old_image = @imagecreatefromwbmp( $this->path );
break;
}
return;
}
private function Error( $string )
{
//
// Ok here we generate an errorimage
//
$width = strlen( $string ) * 7;
$height = 20;
$img = imagecreate( $width, $height );
// Red Backgrounmd!
imagefill( $img, 0, 0, imagecolorallocate( $img, 229, 34, 34 ) );
//
// write Text
//
imagestring( $img, 2, 0, 0, $string, imagecolorallocate( $img, 255, 255, 255 ) );
header( 'Content-type: image/png' );
imagepng( $img );
imagedestroy( $img );
exit( );
}
private function _GetSupportedImageTypes( )
{
if ( @extension_loaded( 'gd' ) )
{
$format = imagetypes( );
$new = '';
switch ( $this->old_dimensions[ 'type' ] )
{
case 1: // Gif
$new = ( $format & IMG_GIF ) ? 'gif' : false;
break;
// Jpegs
case 2:
case 9:
case 10:
case 11:
case 12:
$new = ( $format & IMG_JPG ) ? 'jpg' : false;
break;
case 3: // PNG
$new = ( $format & IMG_PNG ) ? 'png' : false;
break;
//
// Bitmap
//
case 6:
case 15:
$new = ( $format & IMG_WBMP ) ? 'bmp' : false;
break;
}
//
// Ok now we check wicth gd version we have
//
if ( function_exists( 'imagecreatetruecolor' ) )
$version = 2;
else
$version = 1;
return array(
'gd_version' => $version,
'type' => $new
);
}
return array(
'gd_version' => false,
'type' => false
);
}
private function _CalculateDimensions( $type )
{
//
// First of all we must get the original Image width
//
$this->old_dimensions = getimagesize( $this->path );
if ( $this->old_dimensions === false )
$this->Error( 'Unable to get the imagesizes from the source image' );
$this->old_dimensions = array(
'width' => $this->old_dimensions[ 0 ],
'height' => $this->old_dimensions[ 1 ],
'type' => $this->old_dimensions[ 2 ],
);
switch( $type )
{
case 'p':
if ( $this->old_dimensions[ 'width' ] > $this->old_dimensions[ 'height' ] )
{
$this->new_dimensions += array(
'width' => round( $this->old_dimensions[ 'width' ] * ( $this->new_dimensions[ 'p' ] / $this->old_dimensions[ 'width' ] ) ),
'height' => round( $this->old_dimensions[ 'height' ] * ( $this->new_dimensions[ 'p' ] / $this->old_dimensions[ 'width' ] ) )
);
}
else
{
$this->new_dimensions += array(
'width' => round( $this->old_dimensions[ 'width' ] * ( $this->new_dimensions[ 'p' ] / $this->old_dimensions[ 'height' ] ) ),
'height' => round( $this->old_dimensions[ 'height' ] * ( $this->new_dimensions[ 'p' ] / $this->old_dimensions[ 'height' ] ) )
);
}
break;
case 'w':
$this->new_dimensions += array(
'width' => round( $this->new_dimensions[ 'w' ] ),
'height' => round( ( $this->old_dimensions[ 'height' ] * $this->new_dimensions[ 'w' ] ) / $this->old_dimensions[ 'width' ] ),
);
break;
case 'h':
$this->new_dimensions += array(
'width' => round( ( $this->old_dimensions[ 'width' ] * $this->new_dimensions[ 'h' ] ) / $this->old_dimensions[ 'height' ] ),
'height' => round( $this->new_dimensions[ 'h' ] ),
);
break;
case 'wh':
$this->new_dimensions += array(
'width' => round( $this->new_dimensions[ 'w' ] ),
'height' => round( $this->new_dimensions[ 'h' ] ),
);
break;
default:
$this->Error( 'Unknow calculation mode' );
}
return;
}
}
$thumb = new Thumbnail( './charts-arena.de/charts/0a4b0ae1745849945095d2b00fdc51e2.jpg', 'gif' );
$thumb->SetDimensions( 150 );
$thumb->SetRoundCorner( 35, true );
$thumb->Execute();
Ich habe natürlich google gefragt und auch selbst experimentiert, aber mir fehlt leider jeglicher ansatz, mit dem ich das realisieren könnte.
Ich hoffe ihr versteht mich und bedanke mich bereits im Vorraus.
__________________ Mfg Tomtaz "Es soll jetzt diese Erfindung geben.... Kugel oder so heißt die. Ist so eine Art Suchmaschine..."  
Geändert von tomtaz (08.07.2008 um 01:22 Uhr).
|
07.07.2008, 00:10
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