function _color_blend in Drupal 7

Same name and namespace in other branches

1. 8 core/modules/color/color.module \_color_blend()
2. 5 modules/color/color.module \_color_blend()
3. 6 modules/color/color.module \_color_blend()
4. 9 core/modules/color/color.module \_color_blend()

Blends two hex colors and returns the GD color.

1 call to _color_blend()

_color_render_images in modules/color/color.module

Renders images that match a given palette.

File

modules/color/color.module, line 722

Allows users to change the color scheme of themes.

Code

function _color_blend($img, $hex1, $hex2, $alpha) {
  $in1 = _color_unpack($hex1);
  $in2 = _color_unpack($hex2);
  $out = array(
    $img,
  );
  for ($i = 0; $i < 3; ++$i) {
    $out[] = $in1[$i] + ($in2[$i] - $in1[$i]) * $alpha;
  }
  return call_user_func_array('imagecolorallocate', $out);
}