func.watermark.php

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	case 'initial':
	break;
	case 'settings1':
		$arr_config['wm_watermark'] = 1;
		$arr_config['wm_text'] = "(C) 2004 linpha.sf.net";
		$arr_config['wm_fontsize'] = "10";
		$arr_config['wm_fontcolor'] = "white";
		$arr_config['wm_align'] = "south";
		$arr_config['wm_horizontal'] = "0";
		$arr_config['wm_vertical'] = "0";
		$arr_config['wm_enable_rectangle'] = "1";
		$arr_config['wm_rectangle_color'] = "darkgrey";
		$arr_config['wm_enable_shadow'] = "2";
		$arr_config['wm_height'] = "20";
		$arr_config['wm_width'] = "2000";
		$arr_config['wm_resize'] = "no";
	break;
	case 'settings2':
		$arr_config['wm_watermark'] = 2;
		$arr_config['wm_dissolve'] = "65%";
		$arr_config['wm_align'] = "southwest";
		$arr_config['wm_img_img'] = "linpha.png";
		$arr_config['wm_horizontal'] = "10";
		$arr_config['wm_vertical'] = "10";
		$arr_config['wm_resize'] = "30";

	break;
	case 'settings3':	// maybe better for gd lib than for convert
		$arr_config['wm_watermark'] = 1;
		$arr_config['wm_dissolve'] = "100%";
		$arr_config['wm_align'] = "southwest";
		$arr_config['wm_text'] = "(C) 2004 linpha.sf.net";
		$arr_config['wm_fontsize'] = "20";
		$arr_config['wm_fontcolor'] = "white";
		$arr_config['wm_horizontal'] = "0";
		$arr_config['wm_vertical'] = "0";
		$arr_config['wm_enable_rectangle'] = "1";
		$arr_config['wm_rectangle_color'] = "darkgrey";
		$arr_config['wm_enable_shadow'] = "1";
		$arr_config['wm_shadow_size'] = "5";
		$arr_config['wm_shadow_fontsize'] = "2";
		$arr_config['wm_height'] = "30";
		$arr_config['wm_width'] = "260";
		$arr_config['wm_resize'] = "no";
	break;
	}
	while(list($name,$value) = each($arr_config) )
	{
		update_config($value, $name);
	}
}

function get_html_from_color($string)
{
/*##########################################################
## used in: get_rgb_from_all()
## a list with many available colors
##########################################################*/

	// http://mail.gnu.org/archive/html/emacs-diffs/2002-06/msg00158.html

	$rgb = Array ('aliceblue'=>'#f0f8ff',
		'antiquewhite'=>'#faebd7',
		'aquamarine'=>'#7fffd4',
		'azure'=>'#f0ffff',
		'beige'=>'#f5f5dc',
		'bisque'=>'#ffe4c4',
		'black'=>'#000000',
		'blanchedalmond'=>'#ffebcd',
		'blue'=>'#0000ff',
		'blueviolet'=>'#8a2be2',
		'brown'=>'#a52a2a',
		'burlywood'=>'#deb887',
		'cadetblue'=>'#5f9ea0',
		'chartreuse'=>'#7fff00',
		'chocolate'=>'#d2691e',
		'coral'=>'#ff7f50',
		'cornflowerblue'=>'#6495ed',
		'cornsilk'=>'#fff8dc',
		'cyan'=>'#00ffff',
		'darkblue'=>'#00008b',
		'darkcyan'=>'#008b8b',
		'darkgoldenrod'=>'#b886011',
		'darkgray'=>'#a9a9a9',
		'darkgreen'=>'#006400',
		'darkgrey'=>'#a9a9a9',
		'darkkhaki'=>'#bdb76b',
		'darkmagenta'=>'#8b008b',
		'darkolivegreen'=>'#556b2f',
		'darkorange'=>'#ff8c00',
		'darkorchid'=>'#9932cc',
		'darkred'=>'#8b0000',
		'darksalmon'=>'#e9967a',
		'darkseagreen'=>'#8fbc8f',
		'darkslateblue'=>'#483d8b',
		'darkslategray'=>'#2f4f4f',
		'darkslategrey'=>'#2f4f4f',
		'darkturquoise'=>'#00ced1',
		'darkviolet'=>'#9400d3',
		'deeppink'=>'#ff1493',
		'deepskyblue'=>'#00bfff',
		'dimgray'=>'#696969',
		'dimgrey'=>'#696969',
		'dodgerblue'=>'#1e90ff',
		'firebrick'=>'#b22222',
		'floralwhite'=>'#fffaf0',
		'forestgreen'=>'#228b22',
		'gainsboro'=>'#dcdcdc',
		'ghostwhite'=>'#f8f8ff',
		'gold'=>'#ffd700',
		'goldenrod'=>'#daa520',
		'gray'=>'#bebebe',
		'green'=>'#00ff00',
		'greenyellow'=>'#adff2f',
		'honeydew'=>'#f0fff0',
		'hotpink'=>'#ff69b4',
		'indianred'=>'#cd5c5c',
		'ivory'=>'#fffff0',
		'khaki'=>'#f0e68c',
		'lavender'=>'#e6e6fa',
		'lavenderblush'=>'#fff0f5',
		'lawngreen'=>'#7cfc00',
		'lemonchiffon'=>'#fffacd',
		'lightblue'=>'#add8e6',
		'lightcoral'=>'#f08080',
		'lightcyan'=>'#e0ffff',
		'lightgoldenrod'=>'#eedd82',
		'lightgoldenrodyellow'=>'#fafad2',
		'lightgray'=>'#d3d3d3',
		'lightgreen'=>'#90ee90',
		'lightgrey'=>'#d3d3d3',
		'lightpink'=>'#ffb6c1',
		'lightred'=>'#ffc8c8',
		'lightsalmon'=>'#ffa07a',
		'lightseagreen'=>'#20b2aa',
		'lightskyblue'=>'#87cefa',
		'lightslateblue'=>'#8470ff',
		'lightslategray'=>'#778899',
		'lightsteelblue'=>'#b0c4de',
		'lightyellow'=>'#ffffe0',
		'limegreen'=>'#32cd32',
		'linen'=>'#faf0e6',
		'magenta'=>'#ff00ff',
		'maroon'=>'#b03060',
		'mediumaquamarine'=>'#66cdaa',
		'mediumblue'=>'#0000cd',
		'mediumorchid'=>'#ba55d3',
		'mediumpurple'=>'#9370db',
		'mediumseagreen'=>'#3cb371',
		'mediumslateblue'=>'#7b68ee',
		'mediumspringgreen'=>'#00fa9a',
		'mediumturquoise'=>'#48d1cc',
		'mediumvioletred'=>'#c71585',
		'midnightblue'=>'#191970',
		'mintcream'=>'#f5fffa',
		'mistyrose'=>'#ffe4e1',
		'moccasin'=>'#ffe4b5',
		'navajowhite'=>'#ffdead',
		'navy'=>'#000080',
		'navyblue'=>'#000080',
		'oldlace'=>'#fdf5e6',
		'olivedrab'=>'#6b8e23',
		'orange'=>'#ffa500',
		'orangered'=>'#ff4500',
		'orchid'=>'#da70d6',
		'palegoldenrod'=>'#eee8aa',
		'palegreen'=>'#98fb98',
		'paleturquoise'=>'#afeeee',
		'palevioletred'=>'#db7093',
		'papayawhip'=>'#ffefd5',
		'peachpuff'=>'#ffdab9',
		'peru'=>'#cd853f',
		'pink'=>'#ffc0cb',
		'plum'=>'#dda0dd',
		'powderblue'=>'#b0e0e6',
		'purple'=>'#a020f0',
		'red'=>'#ff0000',
		'rosybrown'=>'#bc8f8f',
		'royalblue'=>'#4169e1',
		'saddlebrown'=>'#8b4513',
		'salmon'=>'#fa8072',
		'sandybrown'=>'#f4a460',
		'seagreen'=>'#2e8b57',
		'seashell'=>'#fff5ee',
		'sienna'=>'#a0522d',
		'skyblue'=>'#87ceeb',
		'slateblue'=>'#6a5acd',
		'slategray'=>'#708090',
		'slategrey'=>'#708090',
		'snow'=>'#fffafa',
		'springgreen'=>'#00ff7f',
		'steelblue'=>'#4682b4',
		'tan'=>'#d2b48c',
		'thistle'=>'#d8bfd8',
		'tomato'=>'#ff6347',
		'turquoise'=>'#40e0d0',
		'violet'=>'#ee82ee',
		'violetred'=>'#d02090',
		'wheat'=>'#f5deb3',
		'white'=>'#ffffff',
		'yellow'=>'#ffff00',
		'yellowgreen'=>'#9acd32'
	);
	
	if(array_key_exists($string, $rgb))
	{
		$temp_str = $rgb[$string];
		return $temp_str;
	} else {
		return 0;
	}
}

function get_html_color_from_rgb($r,$g,$b)
{
/*####################################
## used in: not used anymore
####################################*/
	
	if(strlen(dechex($r))==1) {
		$r = '0'.$r;
	} else {
		$r = dechex($r);
	}
	if(strlen(dechex($g))==1) {
		$g = '0'.$g;
	} else {
		$g = dechex($g);
	}
	if(strlen(dechex($b))==1) {
		$b = '0'.$b;
	} else {
		$b = dechex($b);
	}


	return '#'.$r.$g.$b;
}

function every_char_is_hex($string)
/*##########################################################
## used in: is_html_color
## used to check if it is a valid html color
##########################################################*/
{
	for($i=0;$i<strlen($string);$i++)
	{
		$char = substr($string,$i,1);
		$valid_color = false;
		
		if($char == "0") {	// zero makes problems... '== 0' and '== "0"' is not the same...
			$valid_color = true;
		}
		for($n=1;$n<=9;$n++)
		{
			if($char == $n) {
				$valid_color = true;
			}
		}

		for($n='a';$n<='f';$n++)
		{
			if($char === $n) {
				$valid_color = true;
			}
		}

		for($n='A';$n<='F';$n++)
		{
			if($char === $n) {
				$valid_color = true;
			}
		}
		if(!$valid_color) {
			return 0;
		}
	}
	return 1;
}


function is_html_color($string)
/*##########################################################
## used in: get_rgb_from_all
## used to check if it is a valid html color
##########################################################*/
{
	switch(strlen($string))
	{
	case 6:
		if(every_char_is_hex($string)) {
			return 1;
		}
	break;
	case 7:
		if(substr($string,0,1)=="#") {
			if(every_char_is_hex(substr($string,1,6))) {
				return 1;
			}
		}
	break;
	}
	return 0;
}

function get_rgb_from_html($string)
{
/*##########################################################
## used in: get_rgb_from_all()
## converts a html color to an array with the rgb values
## it doesn't matter if the html color is '#00FF00' or '00FF00'
##########################################################*/

	switch(strlen($string))
	{
	case 6:
	break;
	case 7:
		$string = substr($string,1,6);
	break;
	}
	$r_hex = substr($string,0,2);
	$g_hex = substr($string,2,2);
	$b_hex = substr($string,4,2);
	$arr['r'] = hexdec($r_hex);
	$arr['g'] = hexdec($g_hex);
	$arr['b'] = hexdec($b_hex);
	return $arr;
}

function get_rgb_from_all($string)
{
/*##########################################################
## used in: watermark_gd()
## returns an array with the rgb values
## it doesn't matter if the argument is 'darkblue', '#00FF55' or '00FF55'
## if it isn't a correct color, the color (0,0,0) is returned
##########################################################*/

	$str_rgb = get_html_from_color($string); 
	if(substr($str_rgb,0,1)=="#") {
		$array_rgb = get_rgb_from_html($str_rgb);
	} elseif (is_html_color($string)) {
		$array_rgb = get_rgb_from_html($string);
	} else {
		$array_rgb = Array('r'=>0,'g'=>0,'b'=>0);
	}
	return $array_rgb;
}

function calc_align($align, $src_w, $src_h, $dst_w, $dst_h, $pos_x, $pos_y)
{
/*##########################################################
## used in: watermark_gd()
## calcs the position in pixel with a given align
## src_w, src_h: width and height from the textfield (or the small watermark image)
## dst_w, dst_h: width and height from the image
## pos_x, pos_y: additional adjust for the image
##########################################################*/

	switch($align)
	{
		case "center":
			$arr_pos['x'] = ($dst_w-$src_w)/2+($pos_x);
			$arr_pos['y'] = ($dst_h-$src_h)/2+($pos_y);
		break;
		case "east":
			$arr_pos['x'] = $dst_w-$src_w+($pos_x);
			$arr_pos['y'] = ($dst_h-$src_h)/2+($pos_y);
		break;
		case "west":
			$arr_pos['x'] = $pos_x;
			$arr_pos['y'] = ($dst_h-$src_h)/2+($pos_y);
		break;
		case "north":
			$arr_pos['x'] = ($dst_w-$src_w)/2+($pos_x);
			$arr_pos['y'] = $pos_y;
		break;
		case "south":
			$arr_pos['x'] = ($dst_w-$src_w)/2+($pos_x);
			$arr_pos['y'] = $dst_h-$src_h+($pos_y);
		break;
		case "northeast":
			$arr_pos['x'] = $dst_w-$src_w+($pos_x);
			$arr_pos['y'] = $pos_y;
		break;
		case "northwest":
			$arr_pos['x'] = $pos_x;
			$arr_pos['y'] = $pos_y;
		break;
		case "southwest":
			$arr_pos['x'] = $pos_x;
			$arr_pos['y'] = $dst_h-$src_h+($pos_y);
		break;
		case "southeast":
			$arr_pos['x'] = $dst_w-$src_w+($pos_x);
			$arr_pos['y'] = $dst_h-$src_h+($pos_y);
		break;
		default:
			$arr_pos['x'] = $pos_x;
			$arr_pos['y'] = $pos_y;
		break;

	}
	return $arr_pos;
}

?>