public function transform(CGImageBase $src)
{
$width = $src['width'];
$height = $src['height'];
$radius = $this->_radius;
$type = $src['type'];
$color = null;
$r = $g = $b = 255;
if ($src->supports_transparency() && !$this->_color) {
$this->_color = 'transparent';
}
if ($this->_color == 'transparent') {
$type = 'image/png';
}
$_dest = new CGImageBase(array($type, $width, $height));
imagecopy($_dest['rsrc'], $src['rsrc'], 0, 0, 0, 0, $width, $height);
if ($this->_color) {
if ($this->_color == 'transparent') {
// get the dest imagages transparent color.
$color = $_dest['transparent'];
if (!$color) {
list($r, $g, $b) = cgsi_utils::find_unused_color($_dest);
}
} else {
// use the specified rgb.
list($r, $g, $b) = cgsi_utils::color_to_rgb($this->_color);
}
}
if (!$color) {
if ($this->_color == 'transparent') {
$color = imagecolorallocatealpha($_dest['rsrc'], $r, $g, $b, 127);
} else {
$color = imagecolorallocate($_dest['rsrc'], $r, $g, $b);
}
}
if ($this->_color == 'transparent') {
$_dest['transparent'] = $color;
imagecolortransparent($_dest['rsrc'], $color);
imagealphablending($_dest['rsrc'], FALSE);
}
// round the corners.
imagearc($_dest['rsrc'], $radius - 1, $radius - 1, $radius * 2, $radius * 2, 180, 270, $color);
imagefilltoborder($_dest['rsrc'], 0, 0, $color, $color);
imagearc($_dest['rsrc'], $width - $radius, $radius - 1, $radius * 2, $radius * 2, 270, 0, $color);
imagefilltoborder($_dest['rsrc'], $width - 1, 0, $color, $color);
imagearc($_dest['rsrc'], $radius - 1, $height - $radius, $radius * 2, $radius * 2, 90, 180, $color);
imagefilltoborder($_dest['rsrc'], 0, $height - 1, $color, $color);
imagearc($_dest['rsrc'], $width - $radius, $height - $radius, $radius * 2, $radius * 2, 0, 90, $color);
imagefilltoborder($_dest['rsrc'], $width - 1, $height - 1, $color, $color);
return $_dest;
}
public function transform(CGImageBase $src)
{
// quick optimization (nothing to do)
//if( $this->_dest_w == $src['width'] && $this->_dest_h == $src['height'] ) return $src;
$type = $src['type'];
if ($this->_alpha == 127) {
$this->_color = 'transparent';
}
if ($src->supports_transparency() && !$this->_color) {
$this->_color = 'transparent';
}
if ($this->_color == 'transparent' || $this->_alpha > 0) {
$type = 'image/png';
}
if ($this->_color == 'transparent') {
$this->_alpha = 127;
}
// create our destination image.
$_dest = new CGImageBase(array($type, $this->_dest_w, $this->_dest_h));
// fill our image with a color (or transparent)
$color = null;
if ($this->_color) {
if ($this->_color == 'transparent') {
// need to get a transparent color from someplace
$color = $_dest['transparent'];
} else {
$_r = $_g = $_b = 255;
list($_r, $_g, $_b) = cgsi_utils::color_to_rgb($this->_color);
$color = imagecolorallocatealpha($_dest['rsrc'], $_r, $_g, $_b, $this->_alpha);
}
}
if ($this->_alpha > 0 && $this->_alpha < 127) {
$_dest['savealpha'] = TRUE;
imagealphablending($_dest['rsrc'], TRUE);
imagesavealpha($_dest['rsrc'], TRUE);
}
if ($this->_color == 'transparent') {
imagecolortransparent($_dest['rsrc'], $color);
imagealphablending($_dest['rsrc'], FALSE);
}
imagefill($_dest['rsrc'], 0, 0, $color);
if ($this->_dest_w / $this->_dest_h > $src['width'] / $src['height']) {
// height is greater...
$new_h = $this->_dest_h;
$new_w = round($new_h / $src['height'] * $src['width'], 0);
} else {
// width is greater.
$new_w = $this->_dest_w;
$new_h = round($new_w / $src['width'] * $src['height'], 0);
}
$x0 = (int) (($this->_dest_w - $new_w) / 2);
$y0 = (int) (($this->_dest_h - $new_h) / 2);
// resize the big image into the temporary transparent image
$res = imagecopyresampled($_dest['rsrc'], $src['rsrc'], $x0, $y0, 0, 0, $new_w, $new_h, $src['width'], $src['height']);
if ($res === FALSE) {
throw new Exception('Resizetofit - stage 1 - failed');
}
return $_dest;
}
