handle = $img->getHandle();
$this->image = $img;
}
/**
* Sets the active font. Can be an instance of
* WideImage_Font_TTF, WideImage_Font_PS, or WideImage_Font_GDF.
*
*
*
*
* @param object $font Font object to set for writeText()
*/
public function setFont($font)
{
$this->font = $font;
}
/**
* Creates and sets the current font.
*
* The supported font types are: TTF/OTF, PS, and GDF.
* Font type is detected from the extension. If the $file parameter doesn't have an extension, TTF font is presumed.
*
* Note: not all parameters are supported by all fonts.
*
* @param string $file Font file name (string)
* @param int $size Font size (supported for TTF/OTF and PS fonts, ignored for GDF)
* @param int $color Text color
* @param int $bgcolor Background color (supported only for PS font, ignored for TTF and PS)
*
* @return mixed One of the WideImage_Font_* objects
*/
public function useFont($file, $size = 12, $color = 0, $bgcolor = null)
{
$p = strrpos($file, '.');
if ($p === false || $p < strlen($file) - 4) {
$ext = 'ttf';
} else {
$ext = strtolower(substr($file, $p + 1));
}
if ($ext == 'ttf' || $ext == 'otf') {
$font = new WideImage_Font_TTF($file, $size, $color);
} elseif ($ext == 'ps') {
$font = new WideImage_Font_PS($file, $size, $color, $bgcolor);
} elseif ($ext == 'gdf') {
$font = new WideImage_Font_GDF($file, $color);
} else {
throw new WideImage_InvalidFontFileException("'$file' appears to be an invalid font file.");
}
$this->setFont($font);
return $font;
}
/**
* Write text on the image at specified position.
*
* You must set a font with a call to WideImage_Canvas::setFont() prior to writing text to the image.
*
* Smart coordinates are supported for $x and $y arguments, but currently only for TTF/OTF fonts.
*
* Example:
*
* $img = WideImage::load('pic.jpg');
* $canvas = $img->getCanvas();
* $canvas->useFont('Verdana.ttf', 16, $img->allocateColor(255, 0, 0));
* $canvas->writeText('right', 'bottom', 'www.website.com');
*
*
* @param int $x Left
* @param int $y Top
* @param string $text Text to write
* @param int $angle The angle, defaults to 0
*/
public function writeText($x, $y, $text, $angle = 0)
{
if ($this->font === null) {
throw new WideImage_NoFontException("Can't write text without a font.");
}
$angle = -floatval($angle);
if ($angle < 0) {
$angle = 360 + $angle;
}
$angle = $angle % 360;
$this->font->writeText($this->image, $x, $y, $text, $angle);
}
/**
* A magic method that allows you to call any PHP function that starts with "image".
*
* This is a shortcut to call custom functions on the image handle.
*
* Example:
*
* $img = WideImage::load('pic.jpg');
* $canvas = $img->getCanvas();
* $canvas->filledRect(10, 10, 20, 30, $img->allocateColor(0, 0, 0));
* $canvas->line(60, 80, 30, 100, $img->allocateColor(255, 0, 0));
*
*/
public function __call($method, $params)
{
if (function_exists('image'.$method)) {
array_unshift($params, $this->handle);
call_user_func_array('image'.$method, $params);
} else {
throw new WideImage_InvalidCanvasMethodException("Function doesn't exist: image{$method}.");
}
}
}