Quelle test_transformParsing.html Sprache: HTML

products/sources/formale Sprachen/C/Firefox/dom/svg/test/test_transformParsing.html

<!doctype html>
<html>

<head>
  <meta charset="utf-8">
  <title>Test transform parsing</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=946529">Mozilla Bug 946529</a>
<p id="display"></p>
<div id="content" style="display: none">
  <svg width="100%" height="1" id="svg">
    <g id="g"/>
  </svg>
</div>
<pre id="test">
<script class="testbody" type="text/javascript">

// Test cases
checkParseOk("", [ ]);
checkParseOk("matrix(-.7235 .6903 .6903 .7235 -2050 1.14e4)",
  [ { type: "matrix", a: -0.7235, b: 0.6903, c: 0.6903,
                      d: 0.7235,  e: -2050,  f: 11400 } ]);
checkParseOk("matrix(0e0 1e0 1e1 1e-1 1E+2 -.1e1)",
  [ { type: "matrix", a: 0,   b: 1,   c: 10,
                      d: 0.1, e: 100, f: -1 } ]);
checkParseOk("matrix(-0e-0 1e+0 0e-5 1e-10 12.3e+4 .12e2)",
  [ { type: "matrix", a: 0,   b: 1,   c: 0,
                      d: 0.0000000001, e: 123000, f: 12 } ]);

// Fail cases
checkParseFail("matrix(1e+ 0 0 0 0 0)");
checkParseFail("matrix(e2 0 0 0 0 0)");
checkParseFail("matrix(1 e2 0 0 0 0 0)");
checkParseFail("matrix(1e 2 0 0 0 0 0)");
checkParseFail("matrix(1e+-2 0 0 0 0 0)");
checkParseFail("matrix(1e 0 0 0 0 0)");
checkParseFail("matrix(1e1.1 0 0 0 0 0)");
checkParseFail("scale(2) matrix(1e1.1 0 0 0 0 0)");

function checkParseOk(spec, expected) {
  var g = document.getElementById("g");

  // Clear previous value
  g.removeAttribute("transform");

  g.setAttribute("transform", spec);

  // Check length
  var transformList = g.transform.baseVal;
  is(transformList.numberOfItems, expected.length, spec + " - length");
  if (transformList.numberOfItems != expected.length)
    return;

  // Check each item
  for (var i = 0; i < transformList.numberOfItems; i++) {
    checkTransform(transformList.getItem(i), expected[i], spec, i);
  }
}

function checkTransform(transform, expected, spec, index) {
  var typeMapping = {
    "unknown": SVGTransform.SVG_TRANSFORM_UNKNOWN,
    "matrix": SVGTransform.SVG_TRANSFORM_MATRIX,
    "translate": SVGTransform.SVG_TRANSFORM_TRANSLATE,
    "scale": SVGTransform.SVG_TRANSFORM_SCALE,
    "rotate": SVGTransform.SVG_TRANSFORM_ROTATE,
    "skewx": SVGTransform.SVG_TRANSFORM_SKEWX,
    "skewy": SVGTransform.SVG_TRANSFORM_SKEWY,
  };
  var name = "Item " + index + " of '" + spec + "'";

  // Compare type
  if (typeof expected.type != "undefined") {
    is(transform.type, typeMapping[expected.type], name + " - transform type");
  }

  // Compare angle
  if (typeof expected.angle != "undefined") {
    is(transform.angle, expected.angle, name + " - angle");
  }

  // Compare matrix values (roughly)
  ["a", "b", "c", "d", "e", "f"].forEach(function(item) {
    var actual = transform.matrix[item];
    var msg = name + " - matrix:" + item;
    const tolerance = 1 / 65535;
    ok(Math.abs(actual - expected[item]) < tolerance,
       msg + " - got " + actual + ", expected " + expected[item]);
  });
}

function checkParseFail(spec) {
  checkParseOk(spec, []);
}
</script>
</pre>
</body>
</html>

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