note 94673 added to function.imagettfbbox
| From: | DavidArielBloomberg at osu1 dot php dot net | Date: | Tue, 17 Nov 2009 19:26:32 +0000 |
| Subject: | note 94673 added to function.imagettfbbox | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-163002@lists.php.net to get a copy of this message | ||
<?php
// script: _autoblocsizer.php
// The image bloc is generated to exactly match with your text string,
// whatever the font type, the font size, etc. (it works for latin char.)
// written by David Ariel Bloomberg - november 2009
// 1. IGNIT :
header('Content-type: image/png');
// 2. DEFINE VALUES :
// 2.1. Text string to generate (auto or $_GET)
if(isset($_GET['str']) and $_GET['str'] != ""){
$text = $_GET['str'];
}else{
$text = "Lorem ipsum dolor...";
}
// 2.2. Font to be used (auto or $_GET) - TTF only
// correct with your own path in place !
if(isset($_GET['font']) and $_GET['font'] != ""){
$font = "../phpFonts/TTF/". $_GET['font'] .".ttf";
}else{
$font = "../phpFonts/TTF/". "bauhausb" .".ttf";
}
// 2.3. Font size (auto or $_GET)
if(isset($_GET['size']) and $_GET['size'] != ""){
$fontsize = $_GET['size'];
}else{
$fontsize = 30;
}
// 2.4. Angle (auto or $_GET) - Not used in the example...
if(isset($_GET['angle']) and $_GET['angle'] != ""){
$angle = $_GET['angle'];
}else{
$angle = 0;
}
// 2.5. Alpha output (auto or $_GET) - Boolean
if(isset($_GET['alpha']) and $_GET['alpha'] == "TRUE"){
$_alpha = "TRUE";
}else{
$_alpha = "FALSE";
}
// 3. CALCULATE BOX DIMENSIONS : (imagettfbbox)
$zh = imagettfbbox($fontsize, $angle, $font, $text);
$zh_0 = $zh[0];
$zh_1 = $zh[1];
$zh_2 = $zh[2];
$zh_3 = $zh[3];
$zh_4 = $zh[4];
$zh_5 = $zh[5];
$zh_6 = $zh[6];
$zh_7 = $zh[7];
$textbloc_width = ($zh_4 - $zh_6);
$textbloc_height = ($zh_1 -($zh_7) );
$textbloc_marginleft = ($zh_6 +1); // +1 is a correction to match math with reality
$textbloc_marginright = $textbloc_marginleft;
$bloc_v_margin = $textbloc_marginleft; // for layout, to have equal margins on the 4 sides
$textbloc_up_low_char = $zh_3;
$BLOCwidth = ($textbloc_width +$textbloc_marginleft +$textbloc_marginright);
$BLOCheight = ($textbloc_height +($bloc_v_margin *2));
$top_distance = ($BLOCheight -($textbloc_up_low_char +$bloc_v_margin) );
// 4. CREATE THE NEW PNG IMAGE:
// 4.1. PREPARING BLOC : (imagecreatetruecolor) with alpha option
$im = imagecreatetruecolor($BLOCwidth, $BLOCheight);
// 4.2. OPTION WITH PROCESS THAT MAKES A TRUE TRANSPARENCY WITH PERFECT ANTIALIASING!
if($_alpha == "TRUE"){
imagealphablending($im, false);
$colorTransparent = imagecolorallocatealpha($im, 0, 0, 0, 127);
imagefill($im, 0, 0, $colorTransparent);
imagesavealpha($im, true);
}
// 4.3. define some colors :
$white = imagecolorallocate($im, 255, 255, 255);
$grey = imagecolorallocate($im, 128, 128, 128);
$black = imagecolorallocate($im, 0, 0, 0);
$C25ACC7 = imagecolorallocate($im, 37, 172, 199);
$C69C7DD = imagecolorallocate($im, 105, 199, 221);
// 4.4. THIS PROCESS IS REQUIRED ONLY FOR NON-TRANSPARENCY PROCESS!
if($_alpha != "TRUE"){
imagefilledrectangle($im, 0, 0, $BLOCwidth, $BLOCheight, $C69C7DD);
}
// 4.5. GENERATING THE TEXT STRING...
imagettftext($im, $fontsize, 0, 0, $top_distance, $C25ACC7, $font, $text);
// 5. Output to browser
imagepng($im);
imagedestroy($im);
?>
----
Server IP: 92.48.74.199
Probable Submitter: 81.39.35.111
----
Manual Page -- http://www.php.net/manual/en/function.imagettfbbox.php
Edit -- https://master.php.net/note/edit/94673
Del: integrated -- https://master.php.net/note/delete/94673/integrated
Del: useless -- https://master.php.net/note/delete/94673/useless
Del: bad code -- https://master.php.net/note/delete/94673/bad+code
Del: spam -- https://master.php.net/note/delete/94673/spam
Del: non-english -- https://master.php.net/note/delete/94673/non-english
Del: in docs -- https://master.php.net/note/delete/94673/in+docs
Del: other reasons-- https://master.php.net/note/delete/94673
Reject -- https://master.php.net/note/reject/94673
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