To jest całkiem fajny skrypcik do manipulowania obrazem:
[php:1:7d9d003328]<?php
########################################################
# Script Info
# ===========
# File: ImageEditor.php
# Created: 05/06/03
# Modified: 05/06/03
# Author: Ash Young (ash@evoluted.net
# Website:
http://evoluted.net/php/image-editor.htm
# Requirements: php with the GD Library
#
# Description
# ===========
# This class allows you to edit an image easily and
# quickly via php.
#
# If you have any functions that you like to see
# implemented in this script then please just send
# an email to ash@evoluted.net
#
# Limitations
# ===========
# - GIF Editing: this script will only edit gif files
# your GD library allows this.
#
# Image Editing Functions
# =======================
# resize(int width, int height)
# resizes the image to proportions specified.
#
# crop(int x, int y, int width, int height)
# crops the image starting at (x, y) into a rectangle
# width wide and height high.
#
# addText(String str, int x, int y, Array color)
# adds the string str to the image at position (x, y)
# using the colour given in the Array color which
# represents colour in RGB mode.
#
# addLine(int x1, int y1, int x2, int y2, Array color)
# adds the line starting at (x1,y1) ending at (x2,y2)
# using the colour given in the Array color which
# represents colour in RGB mode.
#
# Useage
# ======
# First you are required to include this file into your
# php script and then to create a new instance of the
# class, giving it the path and the filename of the
# image that you wish to edit. Like so:
#
# include("ImageEditor.php");
# $imageEditor = new ImageEditor("filename.jpg", "directoryfileisin/");
#
# After you have done this you will be able to edit the
# image easily and quickly. You do this by calling a
# function to act upon the image. See below for function
# definitions and descriptions see above. An example
# would be:
#
# $imageEditor->resize(400, 300);
#
# This would resize our imported image to 400 pixels by
# 300 pixels. To then export the edited image there are
# two choices, out put to file and to display as an image.
# If you are displaying as an image however it is assumed
# that this file will be viewed as an image rather than
# as a webpage. The first line below saves to file, the
# second displays the image.
#
# $imageEditor->outputFile("filenametosaveto.jpg", "directorytosavein/");
#
# $imageEditor->outputImage();
########################################################
class ImageEditor {
var $x;
var $y;
var $type;
var $img;
var $error;
########################################################
# CONSTRUCTOR
########################################################
function ImageEditor($filename, $path, $col=NULL)
{
$this->error = false;
if(is_numeric($filename) && is_numeric($path))
## IF NO IMAGE SPECIFIED CREATE BLANK IMAGE
{
$this->x = $filename;
$this->y = $path;
$this->type = "jpg";
$this->img = imagecreatetruecolor($this->x, $this->y);
if(is_array($col))
## SET BACKGROUND COLOUR OF IMAGE
{
$colour = ImageColorAllocate($this->img, $col[0], $col[1], $col[2]);
ImageFill($this->img, 0, 0, $colour);
}
}
else
## IMAGE SPECIFIED SO LOAD THIS IMAGE
{
## FIRST SEE IF WE CAN FIND IMAGE
if(file_exists($path . $filename))
{
$file = $path . $filename;
}
else if (file_exists($path . "/" . $filename))
{
$file = $path . "/" . $filename;
}
else
{
$this->errorImage("File Could Not Be Loaded");
}
if(!($this->error))
{
## LOAD OUR IMAGE WITH CORRECT FUNCTION
$this->type = strtolower(end(explode('.', $filename)));
if ($this->type == 'jpg' || $this->type == 'jpeg')
{
$this->img = @imagecreatefromjpeg($file);
}
else if ($this->type == 'png')
{
$this->img = @imagecreatefrompng($file);
}
else if ($this->type == 'gif')
{
$this->img = @imagecreatefrompng($file);
}
## SET OUR IMAGE VARIABLES
$this->x = imagesx($this->img);
$this->y = imagesy($this->img);
}
}
}
########################################################
# RESIZE IMAGE GIVEN X AND Y
########################################################
function resize($width, $height)
{
if(!$this->error)
{
$tmpimage = imagecreatetruecolor($width, $height);
imagecopyresampled($tmpimage, $this->img, 0, 0, 0, 0,
$width, $height, $this->x, $this->y);
imagedestroy($this->img);
$this->img = $tmpimage;
$this->y = $height;
$this->x = $width;
}
}
########################################################
# CROPS THE IMAGE, GIVE A START CO-ORDINATE AND
# LENGTH AND HEIGHT ATTRIBUTES
########################################################
function crop($x, $y, $width, $height)
{
if(!$this->error)
{
$tmpimage = imagecreatetruecolor($width, $height);
imagecopyresampled($tmpimage, $this->img, 0, 0, $x, $y,
$width, $height, $width, $height);
imagedestroy($this->img);
$this->img = $tmpimage;
$this->y = $height;
$this->x = $width;
}
}
########################################################
# ADDS TEXT TO AN IMAGE, TAKES THE STRING, A STARTING
# POINT, PLUS A COLOR DEFINITION AS AN ARRAY IN RGB MODE
########################################################
function addText($str, $x, $y, $col)
{
if(!$this->error)
{
$colour = ImageColorAllocate($this->img, $col[0], $col[1], $col[2]);
Imagestring($this->img, 5, $x, $y, $str, $colour);
}
}
########################################################
# ADDS A LINE TO AN IMAGE, TAKES A STARTING AND AN END
# POINT, PLUS A COLOR DEFINITION AS AN ARRAY IN RGB MODE
########################################################
function addLine($x1, $y1, $x2, $y2, $col)
{
if(!$this->error)
{
$colour = ImageColorAllocate($this->img, $col[0], $col[1], $col[2]);
ImageLine($this->img, $x1, $y1, $x2, $y2, $colour);
}
}
########################################################
# RETURN OUR EDITED FILE AS AN IMAGE
########################################################
function outputImage()
{
if ($this->type == 'jpg' || $this->type == 'jpeg')
{
header("Content-type: image/jpeg");
imagejpeg($this->img);
}
else if ($this->type == 'png')
{
header("Content-type: image/png");
imagepng($this->img);
}
else if ($this->type == 'gif')
{
header("Content-type: image/png");
imagegif($this->img);
}
}
########################################################
# CREATE OUR EDITED FILE ON THE SERVER
########################################################
function outputFile($filename, $path)
{
if ($this->type == 'jpg' || $this->type == 'jpeg')
{
imagejpeg($this->img, ($path . $filename));
}
else if ($this->type == 'png')
{
imagepng($this->img, ($path . $filename));
}
else if ($this->type == 'gif')
{
imagegif($this->img, ($path . $filename));
}
}
########################################################
# SET OUTPUT TYPE IN ORDER TO SAVE IN DIFFERENT
# TYPE THAN WE LOADED
########################################################
function setImageType($type)
{
$this->type = $type;
}
########################################################
# GET VARIABLE FUNCTIONS
########################################################
function getWidth() {return $this->x;}
function getHeight() {return $this->y;}
function getImageType() {return $this->type;}
########################################################
# CREATES AN ERROR IMAGE SO A PROPER OBJECT IS RETURNED
########################################################
function errorImage($str)
{
$this->error = false;
$this->x = 235;
$this->y = 50;
$this->type = "jpg";
$this->img = imagecreatetruecolor($this->x, $this->y);
$this->addText("AN ERROR OCCURED:", 10, 5, array(250,70,0));
$this->addText($str, 10, 30, array(255,255,255));
$this->error = true;
}
}
?>[/php:1:7d9d003328]