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<html xmlns="http://www.w3.org/1999/xhtml">
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=512636
-->
<head>
<title>Test SVGTransform behavior</title>
<script type="text/javascript" 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=512636">Mozilla Bug 512636</a>
<p id="display"></p>
<div id="content">
<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="1" id="svg">
<g id="g" transform="translate(10, 20)"/>
</svg>
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
<![CDATA[
SimpleTest.waitForExplicitFinish();
function run()
{
var g, svg, t, m, m2;
svg = $('svg');
g = $('g');
t = g.transform.baseVal.getItem(0);
m = t.matrix;
// test that the SVGTransform correctly reflects the translate()
checkTransform(t, SVGTransform.SVG_TRANSFORM_TRANSLATE,
1, 0,
0, 1,
10, 20,
0, "translate");
// set the SVGTransform to be a scale()
t.setScale(2, 3);
// test that the matrix is live and now reflects the scale()
checkTransform(t, SVGTransform.SVG_TRANSFORM_SCALE,
2, 0,
0, 3,
0, 0,
0, "scale");
// set the SVGTransform to be a matrix()
m2 = svg.createSVGMatrix();
m2.a = 1;
m2.b = 2;
m2.c = 3;
m2.d = 4;
m2.e = 5;
m2.f = 6;
t.setMatrix(m2);
// check that setMatrix() took a copy of m
ok(m != m2, 't.matrix identity');
// test that the SVGTransform now reflects the matrix value
checkTransform(t, SVGTransform.SVG_TRANSFORM_MATRIX,
1, 2,
3, 4,
5, 6,
0, "matrix");
// set the SVGTransform to be a translate() then convert to a matrix
t.setTranslate(0, 10);
m.a = 2;
// test that the SVGTransform now reflects the matrix value
checkTransform(t, SVGTransform.SVG_TRANSFORM_MATRIX,
2, 0,
0, 1,
0, 10,
0, "matrix");
// If ty is not supplied it is assumed to be zero
g.setAttribute("transform", "translate(5)");
// test that the SVGTransform now reflects the matrix value
checkTransform(t, SVGTransform.SVG_TRANSFORM_TRANSLATE,
1, 0,
0, 1,
5, 0,
0, "transform");
// set the SVGTransform to be a rotate()
t.setRotate(90, 0, 0);
// test that the SVGTransform now reflects the matrix value
checkTransform(t, SVGTransform.SVG_TRANSFORM_ROTATE,
Math.cos(Math.PI/2), Math.sin(Math.PI/2),
-Math.sin(Math.PI/2), Math.cos(Math.PI/2),
0, 0,
90, "rotate");
// set the SVGTransform to be a skewX()
t.setSkewX(45);
// test that the SVGTransform now reflects the matrix value
checkTransform(t, SVGTransform.SVG_TRANSFORM_SKEWX,
1, 0,
Math.tan(Math.PI/4), Math.tan(Math.PI/4),
0, 0,
45, "skewX");
// set the SVGTransform to be a skewY()
t.setSkewY(45);
// test that the SVGTransform now reflects the matrix value
checkTransform(t, SVGTransform.SVG_TRANSFORM_SKEWY,
Math.tan(Math.PI/4), Math.tan(Math.PI/4),
0, 1,
0, 0,
45, "skewY");
// check angle is reset after changing type
t.setTranslate(10, 20);
is(t.angle, 0, "Angle not reset after changing to translate type");
// check read-only properties
t.angle = 40;
is(t.angle, 0, "t.angle should be read-only");
t.type = 7;
is(t.type, SVGTransform.SVG_TRANSFORM_TRANSLATE,
"t.type should be read-only");
t.matrix = m2;
ok(t.matrix != m2 && t.matrix.b == 0, "t.matrix should be read-only");
// check transform object identity after manipulation
ok(t === g.transform.baseVal.getItem(0),
"Got different transform objects after manipulation");
ok(t.matrix === m,
"Got different matrix objects after manipulation");
testCreateTransform();
SimpleTest.finish();
}
function testCreateTransform()
{
svg = $('svg');
var t = svg.createSVGTransform();
ok(t != svg.createSVGTransform(),
"Got identical objects when creating new transform");
checkTransform(t, SVGTransform.SVG_TRANSFORM_MATRIX,
1, 0, 0, 1, 0, 0, 0, "createSVGTransform");
var m = svg.createSVGMatrix();
m.a = 1;
m.b = 2;
m.c = 3;
m.d = 4;
m.e = 5;
m.f = 6;
t = svg.createSVGTransformFromMatrix(m);
ok(t.matrix != m,
'createSVGTransformFromMatrix should copy matrix not adopt it');
m.a = 7; // Just to be sure, changing m should not affect t
checkTransform(t, SVGTransform.SVG_TRANSFORM_MATRIX,
1, 2, 3, 4, 5, 6, 0, "createSVGTransformFromMatrix");
}
function checkTransform(transform, type, a, b, c, d, e, f, angle, forWhat)
{
var m = transform.matrix;
is(transform.type, type, 'transform.type for ' + forWhat);
roughlyEqual(m.a, a, 'matrix.a for ' + forWhat);
roughlyEqual(m.b, b, 'matrix.b for ' + forWhat);
roughlyEqual(m.c, c, 'matrix.c for ' + forWhat);
roughlyEqual(m.d, d, 'matrix.d for ' + forWhat);
roughlyEqual(m.e, e, 'matrix.e for ' + forWhat);
roughlyEqual(m.f, f, 'matrix.f for ' + forWhat);
is(transform.angle, angle, 'transform.angle for ' + forWhat);
}
function roughlyEqual(value, expected, msg)
{
const tolerance = 1 / 65535;
ok(Math.abs(value - expected) < tolerance,
msg + ' - got ' + value + ', expected ' + expected);
}
window.addEventListener("load", run, false);
]]>
</script>
</pre>
</body>
</html>
|
