testcases/phpCairo/over-above-source.php

   1 <?
   2 $size = 40;
   3 $pad = 2;
   4 $width = ($pad + $size + $pad);
   5 $height = $width;
   6 $sur = new CairoImageSurface(FORMAT_ARGB32,$width,$height);
   7 $con = new CairoContext($sur);
   8
   9 $con->translate($pad, $pad);
  10 $con->moveTo($size/2, $size/2);
  11 $con->relLineTo($size/2, 0);
  12 $con->relLineTo($size/-2, $size/2);
  13 $con->closePath();
  14
  15 $con->setOperator(OPERATOR_SOURCE);
  16 $con->setSourceRgba(1,0,0,0.5);
  17
  18 $con->fill();
  19
  20 $con->arc($size/2, $size/2, $size/4, 0, 2*M_PI);
  21 $con->setOperator(OPERATOR_OVER);
  22 $con->setSourceRgba(0,1,0,0.5);
  23
  24 $con->fill();
  25
  26 $sur->writeToPng("over-above-source-php.png");
  27 ?>
  28