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<html>
<head>
<script src="../OLLoader.js"></script>
<script type="text/javascript">
function test_constructor(t) {
t.plan(2);
var control = new OpenLayers.Control.PinchZoom();
t.ok(control instanceof OpenLayers.Control.PinchZoom, "got an instance");
t.ok(control.handler instanceof OpenLayers.Handler.Pinch, "control has pinch handler");
control.destroy();
}
function test_destroy(t) {
t.plan(1);
var control = new OpenLayers.Control.PinchZoom();
control.destroy();
t.ok(!control.handler, "handler destroyed");
}
function test_activate(t) {
t.plan(3);
var control = new OpenLayers.Control.PinchZoom();
t.ok(!control.active, "control not activated after construction");
var map = new OpenLayers.Map({
div: "map",
controls: [control]
});
t.ok(control.active, "control activated after being added to the map");
control.deactivate();
t.ok(!control.active, "control deactivated");
map.destroy();
}
function test_pinchMove(t) {
var control = new OpenLayers.Control.PinchZoom();
var map = new OpenLayers.Map({
div: "map",
controls: [control]
});
var log = [];
map.applyTransform = function(x, y, scale) {
log.push([x, y, scale]);
}
map.layerContainerOriginPx = {
x: -50, y: -50
};
control.pinchOrigin = {
x: 100, y: 50
};
var cases = [
{x: 100, y: 60, scale: 1, transform: [-50, -40, 1]},
{x: 150, y: 60, scale: 1, transform: [0, -40, 1]},
{x: 150, y: 60, scale: 2, transform: [-150, -140, 2]},
{x: 50, y: 20, scale: 2.5, transform: [-325, -230, 2.5]},
{x: 150, y: 60, scale: 2, transform: [-150, -140, 2]},
{x: 50, y: 20, scale: 0.25, transform: [13, -5, 0.25]}
];
var len = cases.length;
t.plan(len*2);
var c;
for (var i=0; i<len; ++i) {
c = cases[i];
control.pinchMove({xy: {x: c.x, y: c.y}}, {scale: c.scale});
t.eq(log.length, i+1, i + " called once");
t.eq(log[i], c.transform, i + " correct transform");
}
}
function test_pinchMove_preservecenter(t) {
var control = new OpenLayers.Control.PinchZoom({
preserveCenter: true
});
var map = new OpenLayers.Map({
div: "map",
controls: [control],
layers: [new OpenLayers.Layer('fake', {isBaseLayer: true})]
});
map.zoomToMaxExtent();
var centerPx = map.getPixelFromLonLat(map.getCenter());
control.pinchStart = function(evt, pinchData) {
t.eq(map.layerContainerOriginPx, {x: 0, y: 0}, "center preserved");
t.eq(map.getPixelFromLonLat(map.getCenter()), centerPx, "center preserved");
}
control.pinchStart(null);
var log = [];
map.applyTransform = function(x, y, scale) {
log.push([x, y, scale]);
}
control.pinchOrigin = map.getPixelFromLonLat(map.getCenter());
var cases = [
{scale: 1, transform: [0, 0, 1]},
{scale: 2, transform: [-128, -128, 2]},
{scale: 2.5, transform: [-192, -192, 2.5]},
{scale: 0.25, transform: [96, 96, 0.25]}
];
var len = cases.length;
t.plan(2 + len*2);
var c;
for (var i=0; i<len; ++i) {
c = cases[i];
control.pinchMove(null, {scale: c.scale});
t.eq(log.length, i+1, i + " called once");
t.eq(log[i], c.transform, i + " correct transform");
}
}
</script>
</head>
<body>
<div id="map" style="width: 256px; height: 256px;"></div>
</body>
</html>
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