imageftbbox()
Posted: Tue Jul 18, 2006 7:09 pm
I've just migrated a project from one server to another only to find that although my new server has newer version of just about everything it doesn't come with the FreeType library for GD. I didn't know this even existed until 10 minutes ago but now that I do I've realised it is really important to this code i'm using to generate graphs.
imageftbbox() seems to be very similar to imagettfbbox(), they both require the FreeType library which I don't have on this new server. Could anyone suggest any code to do the job that imageftbbox() does?
Code: Select all
class Text
{
var $HORIZONTAL_LEFT_ALIGN = 1; // PHP4 doesn't support class constants
var $HORIZONTAL_CENTER_ALIGN = 2;
var $HORIZONTAL_RIGHT_ALIGN = 4;
var $VERTICAL_TOP_ALIGN = 8;
var $VERTICAL_CENTER_ALIGN = 16;
var $VERTICAL_BOTTOM_ALIGN = 32;
/**
* Creates a new text drawing helper
*
* @access public
*/
function Text()
{
// Free low-res fonts based on Bitstream Vera <http://dejavu.sourceforge.net/wiki/>
$this->fontCondensed = dirname(__FILE__) . "/../fonts/DejaVuSansCondensed.ttf";
$this->fontCondensedBold = dirname(__FILE__) . "/../fonts/DejaVuSansCondensed-Bold.ttf";
}
/**
* Print text
*
* @access public
* @param Image GD image
* @param integer text coordinate (x)
* @param integer text coordinate (y)
* @param Color text color
* @param string text value
* @param string font file name
* @param bitfield text alignment
*/
function printText($img, $px, $py, $color, $text, $fontFileName, $align = 0)
{
if(!($align & $this->HORIZONTAL_CENTER_ALIGN) && !($align & $this->HORIZONTAL_RIGHT_ALIGN))
$align |= $this->HORIZONTAL_LEFT_ALIGN;
if(!($align & $this->VERTICAL_CENTER_ALIGN) && !($align & $this->VERTICAL_BOTTOM_ALIGN))
$align |= $this->VERTICAL_TOP_ALIGN;
$fontSize = 8;
$lineSpacing = 1;
//**
//** imageftbbox undefined
//** so is imagettfbbox
//**
list($llx, $lly, $lrx, $lry, $urx, $ury, $ulx, $uly) = imageftbbox($fontSize, 0, $fontFileName, $text, array("linespacing" => $lineSpacing));
//**
//**
//**
//**
$textWidth = $lrx - $llx;
$textHeight = $lry - $ury;
$angle = 0;
if($align & $this->HORIZONTAL_CENTER_ALIGN)
$px -= $textWidth / 2;
if($align & $this->HORIZONTAL_RIGHT_ALIGN)
$px -= $textWidth;
if($align & $this->VERTICAL_CENTER_ALIGN)
$py += $textHeight / 2;
if($align & $this->VERTICAL_TOP_ALIGN)
$py += $textHeight;
imagettftext($img, $fontSize, $angle, $px, $py, $color->getColor($img), $fontFileName, $text);
}
/**
* Print text centered horizontally on the image
*
* @access public
* @param Image GD image
* @param integer text coordinate (y)
* @param Color text color
* @param string text value
* @param string font file name
*/
function printCentered($img, $py, $color, $text, $fontFileName)
{
$this->printText($img, imagesx($img) / 2, $py, $color, $text, $fontFileName, $this->HORIZONTAL_CENTER_ALIGN | $this->VERTICAL_CENTER_ALIGN);
}