PHP-generated thumbnail class_php tutorial

Class for generating thumbnails in PHP. Php code? Php *** function: generate thumbnails * author: phpox * Date: ThuMay1709: 57: 05CST2007 * classCreatMiniature {public variable var $ srcFile; source image var $ echoType; php code

/**

* Function: generate a thumbnail.

* Author: phpox

* Date: Thu May 17 09:57:05 CST 2007

*/

Class CreatMiniature

{

// Public variables

Var $ srcFile = ""; // source image

Var $ echoType; // The type of the output image, link -- not saved as a file; file -- saved as a file

Var $ im = ""; // temporary variable

Var $ srcW = ""; // source image width

Var $ srcH = ""; // original height

// Set variables and initialization

Function SetVar ($ srcFile, $ echoType)

{

If (! File_exists ($ srcFile )){

Echo Source image file does not exist !;

Exit ();

}

$ This-> srcFile = $ srcFile;

$ This-> echoType = $ echoType;

$ Info = "";

$ Data = GetImageSize ($ this-> srcFile, $ info );

Switch ($ data [2])

{

Case 1:

If (! Function_exists ("imagecreatefromgif ")){

Echo "your GD library cannot use images in GIF format. please use Jpeg or PNG format! Return ";

Exit ();

}

$ This-> im = ImageCreateFromGIF ($ this-> srcFile );

Break;

Case 2:

If (! Function_exists ("imagecreatefromjpeg ")){

Echo "your GD library cannot use images in jpeg format. please use images in other formats! Return ";

Exit ();

}

$ This-> im = ImageCreateFromJpeg ($ this-> srcFile );

Break;

Case 3:

$ This-> im = ImageCreateFromPNG ($ this-> srcFile );

Break;

}

$ This-> srcW = ImageSX ($ this-> im );

$ This-> srcH = ImageSY ($ this-> im );

}

// Generate a distorted thumbnail

Function Distortion ($ toFile, $ toW, $ toH)

{

$ CImg = $ this-> CreatImage ($ this-> im, $ toW, $ toH, 0, 0, 0, $ this-> srcW, $ this-> srcH );

Return $ this-> EchoImage ($ cImg, $ toFile );

ImageDestroy ($ cImg );

}

// Generate a scaled chart

Function PRorate ($ toFile, $ toW, $ toH)

{

$ ToWH = $ toW/$ toH;

$ SrcWH = $ this-> srcW/$ this-> srcH;

If ($ toWH <= $ srcWH)

{

$ FtoW = $ toW;

$ FtoH = $ ftoW * ($ this-> srcH/$ this-> srcW );

}

Else

{

$ FtoH = $ toH;

$ FtoW = $ ftoH * ($ this-> srcW/$ this-> srcH );

}

If ($ this-> srcW> $ toW | $ this-> srcH> $ toH)

{

$ CImg = $ this-> CreatImage ($ this-> im, $ ftoW, $ ftoH, 0, 0, 0, $ this-> srcW, $ this-> srcH );

Return $ this-> EchoImage ($ cImg, $ toFile );

ImageDestroy ($ cImg );

}

Else

{

$ CImg = $ this-> CreatImage ($ this-> im, $ this-> srcW, $ this-> srcH, 0, 0, 0, $ this-> srcW, $ this-> srcH );

Return $ this-> EchoImage ($ cImg, $ toFile );

ImageDestroy ($ cImg );

}

}

// Generate a thumbnail after minimum cropping

Function Cut ($ toFile, $ toW, $ toH)

{

$ ToWH = $ toW/$ toH;

$ SrcWH = $ this-> srcW/$ this-& g

Why? Php/*** function: generate thumbnails * author: phpox * Date: Thu May 17 09:57:05 CST 2007 */class CreatMiniature {// public variable var $ srcFile = ""; // original image var $ echoType ;/...