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[TASK] Fixed a bug in the movePointer() function.

This commit is contained in:
Jan Philipp Timme 2011-01-03 15:27:03 +00:00
parent 61ea2b936e
commit b74c814e3f
3 changed files with 31 additions and 11 deletions
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25
BoxImage.class.php
View File

@ -36,12 +36,27 @@ class BoxImage {
* @return void
* @throws Exception
*/
public function __construct($size) {
public function __construct($size, $mode) {
if($size < 1) throw new Exception("This cannot be done!");
//determine width+height
switch($mode) {
case "square":
$this->height = ceil(sqrt($size));
$this->width = $this->height;
break;
case "line":
$this->height = 1;
$this->width = $size;
break;
case "bar":
$this->height = $size;
$this->width = 1;
break;
default:
throw new Exception("Unknown mode given!");
break;
}
//prepare image for PNG with transparency using the calculated size.
$this->image = imagecreatetruecolor($this->width, $this->height);
@ -98,6 +113,8 @@ class BoxImage {
* @return void
*/
public function movePointer($offset) {
//echo $this->pointer_x.",".$this->pointer_y." --> ";
if($offset === 0) return;
if($offset > 0) $step = 1;
if($offset < 0){
@ -125,14 +142,16 @@ class BoxImage {
//increase x-pointer
$this->pointer_x += 1;
//handle y-jumps
if($this->pointer_x > $this->width) {
if($this->pointer_x >= $this->width) {
$this->pointer_x = 0;
$this->pointer_y += 1;
//out of range?
if($this->pointer_y > $this->height) throw new Exception("Out of range! (height)");
if($this->pointer_y >= $this->height) throw new Exception("Out of range! (height)");
}
} //end of if
} //end of for
//echo $this->pointer_x.",".$this->pointer_y."\n";
} //end of function
/**

9
FileImageConverter.class.php
View File

@ -29,7 +29,7 @@ class FileImageConverter {
* @return void
* @throws Exception
*/
public function convertFile($filename) {
public function convertFile($filename, $mode) {
if(file_exists($filename) === FALSE) throw new Exception("Invalid filename given!");
//get file data
@ -56,9 +56,9 @@ class FileImageConverter {
$size = strlen($fancy_header) + 1 + strlen($filesize) + 1 + strlen($md5) + 1 + $filesize + 1;
//create and prepare image
$this->image = new BoxImage($size);
$this->image = new BoxImage($size, $mode);
echo "Image will be " . $this->image->getWidth() . "px x " . $this->image->getHeight() . "px.\n";
echo "Image will be " . $this->image->getWidth() . "px X " . $this->image->getHeight() . "px. (Mode: " . $mode . ")\n";
echo "Filling image...";
$this->image->fillImage(0,0,0,0);
@ -92,9 +92,8 @@ class FileImageConverter {
echo "Adding file contents...\n";
$this->addDataToImage($content);
//magic pixel
//magic pixel - last pixel for line and bar mode, do NOT move pointer!
$this->image->setCurrentPixel(0,0,0,127);
$this->image->movePointer(1);
//save image
echo "Saving image...";

4
Main.php
View File

@ -1,11 +1,13 @@
<?php
error_reporting(E_ALL);
require_once "CharColorConverter.class.php";
require_once "BoxImage.class.php";
require_once "FileImageConverter.class.php";
$filename = $argv[1];
$mode = $argv[2];
$converter = new FileImageConverter();
$converter->convertFile($filename);
$converter->convertFile($filename, $mode);
?>