fb3c02354f
that Andreas has been working so hard on. I think this is the single most awesome commit I've ever had the pleasure of committing. The results of this commit are described on http://trac.openlayers.org/wiki/Styles: essentially, this makes it possible to style features in all kinds of fun ways based on rules, and will also form the underlying basis for #533. Things this patch adds: * OL.Rule classes. These classes allow you to do tests against the propertie of a feature, and set a style based on these properties -- so you can compare the 'speedlimit' property of a line, and test if it is > 60, and if it is greater than 60, render it in a different color. You can also test combinations of rules using the OL.Rule.Logical class, and test featureids with the FeatureID class. * OL.Style class: The OL.Style class lets you wrap up Rules into styles that can be used with drawFeature to draw the feature in the selected style. * OL.Layer.Vector.drawFeature will check if the given style is an OL.Style object, and if so, it will draw the feature accordingly. examples/georss-flickr.html shows usage of these classes. Many, many thanks go to Andreas for all his hard work on this: this code really is very pretty, and includes unit tests for all the classes (and we know that I am a big fan of tests.) Three cheers for Andreas: Hip hip, hooray! hip hip, hooray! hip hip, hooray! git-svn-id: http://svn.openlayers.org/trunk/openlayers@5429 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
71 lines
2.3 KiB
HTML
71 lines
2.3 KiB
HTML
<html>
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<head>
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<script src="../../lib/OpenLayers.js"></script>
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<script type="text/javascript">
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function test_Comparison_constructor(t) {
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t.plan(3);
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var options = {'foo': 'bar'};
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var rule = new OpenLayers.Rule.Comparison(options);
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t.ok(rule instanceof OpenLayers.Rule.Comparison,
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"new OpenLayers.Rule.Comparison returns object" );
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t.eq(rule.foo, "bar", "constructor sets options correctly");
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t.eq(typeof rule.evaluate, "function", "rule has an evaluate function");
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}
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function test_Comparison_destroy(t) {
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t.plan(1);
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var rule = new OpenLayers.Rule.Comparison();
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rule.destroy();
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t.eq(rule.symbolizer, null, "symbolizer hash nulled properly");
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}
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function test_Comparison_value2regex(t) {
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t.plan(2);
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var rule = new OpenLayers.Rule.Comparison({
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property: "foo",
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value: "*b?r\\*\\?*",
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type: OpenLayers.Rule.Comparison.LIKE});
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rule.value2regex("*", "?", "\\");
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t.eq(rule.value, ".*b.r\\*\\?.*", "Regular expression generated correctly.");
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rule.value = "%b.r!%!.%";
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rule.value2regex("%", ".", "!");
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t.eq(rule.value, ".*b.r\\%\\..*", "Regular expression with different wildcard and escape chars generated correctly.");
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}
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function test_Comparison_evaluate(t) {
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t.plan(3);
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var rule = new OpenLayers.Rule.Comparison({
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property: "area",
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lowerBoundary: 1000,
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upperBoundary: 5000,
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type: OpenLayers.Rule.Comparison.BETWEEN});
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var features = [
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new OpenLayers.Feature.Vector(null, {
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area: 2000}),
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new OpenLayers.Feature.Vector(null, {
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area: 6000}),
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new OpenLayers.Feature.Vector(null, {
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area: 4999})];
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var ruleResults = {
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0: true,
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1: false,
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2: true};
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for (var i in ruleResults) {
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var result = rule.evaluate(features[i]);
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t.eq(result, ruleResults[i], "feature "+i+
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" evaluates to "+result.toString()+" correctly.");
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}
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}
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</script>
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</head>
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<body>
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</body>
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</html>
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