testcases/phpCairo/font-matrix-translation.php

   1 <?
   2 function box_text($str, $x, $y)
   3 {
   4         global $con;
   5         $con->save();
   6         $ext = $con->text_extents($str);
   7         $sf = $con->get_scaled_font();
   8         $sext = $sf->text_extents("text");
   9         $lw = $con->get_line_width();
  10         $con->rectangle($x + $ext["x_bearing"]-$lw/2, $y + $ext["y_bearing"] - $lw/2, $ext["width"]+$lw, $ext["height"]+ $lw);
  11         $con->stroke();
  12         $con->move_to($x,$y);
  13         $con->show_text($str);
  14         $con->restore();
  15 }
  16 $sur = new CairoImageSurface(FORMAT_ARGB32, 38, 34);
  17 $con = new CairoContext($sur);
  18
  19 $con->set_source_rgb(1,1,1);
  20 $con->paint();
  21
  22 $con->select_font_face("Bitstream Vera Sans");
  23 $con->set_font_size(12);
  24 $con->translate(4,4);
  25 $con->set_line_width(1);
  26 $ext = $con->text_extents("text");
  27
  28 $con->set_source_rgb(0,0,0);
  29 box_text("text", 0, -$ext["y_bearing"]);
  30 $mat = new CairoMatrix();
  31 $mat->translate(6,16);
  32 $mat->scale(12,12);
  33 $con->set_font_matrix($mat);
  34 $con->set_source_rgb(0,0,1);
  35 box_text("text", 0, -$ext["y_bearing"]);
  36
  37 $sur->write_to_png("font-matrix-translation-php.png");
  38 ?>
  39