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|
<html>
<head>
<script src="../OLLoader.js"></script>
<script type="text/javascript">
var supported = OpenLayers.Renderer.Canvas.prototype.supported();
var map, layer;
function setUp() {
map = new OpenLayers.Map("map");
layer = new OpenLayers.Layer.Vector(null, {
isBaseLayer: true,
renderers: ["Canvas"]
});
map.addLayer(layer);
map.setCenter(new OpenLayers.LonLat(0, 0));
}
function tearDown() {
map.destroy();
map = null;
layer = null;
}
function test_Renderer_Canvas_constructor(t) {
if (!supported) { t.plan(0); return; }
t.plan(2);
var el = document.body;
el.id = "foo";
var r = new OpenLayers.Renderer.Canvas(el.id);
t.ok(r instanceof OpenLayers.Renderer.Canvas, "new OpenLayers.Renderer.Canvas returns Renderer.Canvas object" );
t.ok(r.container == el, "renderer container is correctly set");
r.destroy();
}
function test_Renderer_Canvas_setextent(t) {
if (!supported) { t.plan(0); return; }
t.plan(2);
setUp();
var r = layer.renderer;
var extent = new OpenLayers.Bounds(1,2,3,4);
r.resolution = 1;
r.setExtent(extent, true);
t.ok(r.extent.equals(extent), "extent is correctly set");
t.eq(r.resolution, null, "resolution nullified");
tearDown();
}
function test_Renderer_Canvas_setsize(t) {
if (!supported) { t.plan(0); return; }
t.plan(2);
var el = document.body;
el.id = "foo";
var r = new OpenLayers.Renderer.Canvas(el.id);
var size = new OpenLayers.Size(1,2);
r.resolution = 1;
r.setSize(size);
t.ok(r.size.equals(size), "size is correctly set");
t.eq(r.resolution, null, "resolution nullified");
r.destroy();
}
function test_Renderer_Canvas_getresolution(t) {
if (!supported) { t.plan(0); return; }
t.plan(2);
var el = document.body;
el.id = "foo";
var r = new OpenLayers.Renderer.Canvas(el.id);
var map = new OpenLayers.Map("map");
r.map = map;
var resolution = r.getResolution();
t.eq(resolution, map.getResolution(), "resolution matches the map resolution");
t.eq(r.resolution, resolution, "resolution is correctly set");
map.destroy();
}
function test_featureIdToHex(t) {
if (!supported) {
t.plan(0);
return;
}
t.plan(2);
var el = document.body;
el.id = "foo";
var renderer = new OpenLayers.Renderer.Canvas(el.id);
var cases = [{
id: "foo_0", hex: "#000001"
}, {
id: "foo_10", hex: "#00000b"
}, {
id: "foo_100", hex: "#000065"
}, {
id: "foo_1000000", hex: "#0f4241"
}, {
id: "foo_16777214", hex: "#ffffff"
}, {
id: "foo_16777215", hex: "#000001"
}];
t.plan(cases.length);
var c;
for (var i=0; i<cases.length; ++i) {
c = cases[i];
t.eq(renderer.featureIdToHex(c.id), c.hex, c.id);
}
renderer.destroy();
}
function test_Renderer_Canvas_destroy(t) {
if (!supported) { t.plan(0); return; }
t.plan(5);
var el = document.body;
el.id = "foo";
var r = new OpenLayers.Renderer.Canvas(el.id);
r.container = document.createElement("div");
r.extent = new OpenLayers.Bounds(1,2,3,4);
r.size = new OpenLayers.Size(1,2);
r.resolution = 1;
r.map = {};
r.destroy();
t.eq(r.container, null, "container nullified");
t.eq(r.extent, null, "extent nullified");
t.eq(r.size, null, "size nullified");
t.eq(r.resolution, null, "resolution nullified");
t.eq(r.map, null, "map nullified");
}
function test_drawFeature(t) {
if (!supported) {
t.plan(0);
return;
}
t.plan(10);
setUp();
var renderer = layer.renderer;
var count = 0;
var redraw = layer.renderer.redraw;
renderer.redraw = function() {
++count;
redraw.apply(this, arguments);
}
var exp;
// a) draw a point feature
count = 0;
exp = renderer.drawFeature(
new OpenLayers.Feature.Vector(new OpenLayers.Geometry.Point(0, 0)), {}
);
t.eq(exp, true, "a) drawFeature returns true");
t.eq(count, 1, "a) redraw called once after drawing a point feature");
renderer.clear();
// b) draw one feature with no geometry
count = 0;
exp = renderer.drawFeature(
new OpenLayers.Feature.Vector(), {}
);
t.eq(exp, undefined, "b) drawFeature returns undefined");
t.eq(count, 0, "b) redraw is not called when drawing a feature with no geometry");
renderer.clear();
// c) draw a point feature with display "none"
count = 0;
exp = renderer.drawFeature(
new OpenLayers.Feature.Vector(new OpenLayers.Geometry.Point(1, 0)),
{display: "none"}
);
t.eq(exp, false, "c) drawFeature returns false");
t.eq(count, 1, "c) redraw is called when drawing a feature with display 'none'");
renderer.clear();
// d) draw a point feature outside renderer extent
count = 0;
exp = renderer.drawFeature(
new OpenLayers.Feature.Vector(new OpenLayers.Geometry.Point(-1000, 0)), {}
);
t.eq(exp, false, "d) drawFeature returns false");
t.eq(count, 1, "d) redraw is called when drawing a feature outside renderer extent");
renderer.clear();
// e) draw a polygon feature without bounds
count = 0;
exp = renderer.drawFeature(
new OpenLayers.Feature.Vector(new OpenLayers.Geometry.Polygon()), {}
);
t.eq(exp, false, "d) drawFeature returns false");
t.eq(count, 1, "d) redraw is called when drawing a feature without bounds");
renderer.clear();
tearDown();
}
function test_pendingRedraw(t) {
if (!supported) {
t.plan(0);
return;
}
t.plan(4);
var layer = new OpenLayers.Layer.Vector(null, {
isBaseLayer: true,
renderers: ["Canvas"]
});
var map = new OpenLayers.Map({
div: "map",
controls: [],
layers: [layer],
center: new OpenLayers.LonLat(0, 0),
zoom: 0
});
var count = 0;
var redraw = layer.renderer.redraw;
layer.renderer.redraw = function() {
++count;
redraw.apply(this, arguments);
}
// add one point feature and confirm redraw is called once
count = 0;
layer.addFeatures([
new OpenLayers.Feature.Vector(new OpenLayers.Geometry.Point(0, 0))
]);
t.eq(count, 1, "redraw called once after adding one point feature");
// add one feature with no geometry and confirm redraw is not called
count = 0;
layer.addFeatures([
new OpenLayers.Feature.Vector()
]);
t.eq(count, 0, "redraw is not called when adding a feature with no geometry");
// add one point feature, one feature with no geom, and one point feature and confirm redraw is called once
count = 0;
layer.addFeatures([
new OpenLayers.Feature.Vector(new OpenLayers.Geometry.Point(1, 0)),
new OpenLayers.Feature.Vector(),
new OpenLayers.Feature.Vector(new OpenLayers.Geometry.Point(0, 1))
]);
t.eq(count, 1, "redraw called once after adding three features where middle one has no geometry");
// add two point features and one feature with no geom, and confirm redraw is called once
count = 0;
layer.addFeatures([
new OpenLayers.Feature.Vector(new OpenLayers.Geometry.Point(1, 0)),
new OpenLayers.Feature.Vector(new OpenLayers.Geometry.Point(0, 1)),
new OpenLayers.Feature.Vector()
]);
t.eq(count, 1, "redraw called once after adding three features where last one has no geometry");
map.destroy();
}
function test_hitDetection(t) {
if (!supported) {
t.plan(0);
return;
}
var layer = new OpenLayers.Layer.Vector(null, {
isBaseLayer: true,
resolutions: [1],
styleMap: new OpenLayers.StyleMap({
pointRadius: 5,
strokeWidth: 3,
fillColor: "red",
fillOpacity: 0.5,
strokeColor: "blue",
strokeOpacity: 0.75
}),
renderers: ["Canvas"]
});
var map = new OpenLayers.Map({
div: "map",
controls: [],
layers: [layer],
center: new OpenLayers.LonLat(0, 0),
zoom: 0
});
layer.addFeatures([
new OpenLayers.Feature.Vector(
new OpenLayers.Geometry.Point(-100, 0)
),
new OpenLayers.Feature.Vector(
OpenLayers.Geometry.fromWKT("LINESTRING(-50 0, 50 0)")
),
new OpenLayers.Feature.Vector(
OpenLayers.Geometry.fromWKT("POLYGON((100 -25, 150 -25, 150 25, 100 25, 100 -25), (120 -5, 130 -5, 130 5, 120 5, 120 -5))")
),
new OpenLayers.Feature.Vector(
new OpenLayers.Geometry.Point(80, 0), {}, {
graphicName: "square",
pointRadius: 8,
strokeWidth: 4,
fillColor: "red",
fillOpacity: 0.5,
strokeColor: "blue",
strokeOpacity: 0.75
}
)
]);
var cases = [{
msg: "center of point", x: -100, y: 0, id: layer.features[0].id
}, {
msg: "edge of point", x: -106, y: 0, id: layer.features[0].id
}, {
msg: "outside point", x: -110, y: 0, id: null
}, {
msg: "center of line", x: 0, y: 0, id: layer.features[1].id
}, {
msg: "edge of line", x: 0, y: 1, id: layer.features[1].id
}, {
msg: "outside line", x: 0, y: 5, id: null
}, {
msg: "inside polygon", x: 110, y: 0, id: layer.features[2].id
}, {
msg: "edge of polygon", x: 99, y: 0, id: layer.features[2].id
}, {
msg: "inside polygon hole", x: 125, y: 0, id: null
}, {
msg: "outside polygon", x: 155, y: 0, id: null
}, {
msg: "inside symbol", x: 80, y: 0, id: layer.features[3].id
}, {
msg: "outside symbol interior, inside symbol edge", x: 90, y: 8, id: layer.features[3].id
}, {
msg: "outside symbol", x: 94, y: 0, id: null
}];
function px(x, y) {
return map.getPixelFromLonLat(
new OpenLayers.LonLat(x, y)
);
}
var num = cases.length;
t.plan(2 * num);
var c, feature;
for (var i=0; i<num; ++i) {
c = cases[i];
feature = layer.renderer.getFeatureIdFromEvent({xy: px(c.x, c.y)});
t.eq(feature && feature.id, c.id, c.msg);
// Extra test: hit detection on an invisible canvas should return undefined
layer.setVisibility(false);
feature = layer.renderer.getFeatureIdFromEvent({xy: px(c.x, c.y)});
t.eq(feature, undefined, c.msg + ' (invisible)');
layer.setVisibility(true);
}
map.destroy();
}
// see http://trac.osgeo.org/openlayers/ticket/3264
function test_externalGraphic_destroyFeatures(t) {
if (!supported) {
t.plan(0);
return;
}
t.plan(1);
// set up
var layer = new OpenLayers.Layer.Vector(null, {
isBaseLayer: true,
renderers: ["Canvas"]
});
var map = new OpenLayers.Map({
div: "map",
controls: [],
layers: [layer],
center: new OpenLayers.LonLat(0, 0),
zoom: 0
});
layer.addFeatures([
new OpenLayers.Feature.Vector(
new OpenLayers.Geometry.Point(0, 0),
null,
{
externalGraphic: '../../img/marker.png',
graphicHeight: 20,
graphicWidth: 20
}
)
]);
var called = false;
layer.renderer.canvas.drawImage = function(img, x, y, w, h) {
called = true;
};
// test
// schedule a canvas.drawImage
layer.renderer.redraw();
// destroy the feature before drawImage gets called
layer.destroyFeatures();
t.delay_call(0.1, function() {
t.ok(!called,
'canvas.drawImage not called if feature is destroyed');
// tear down
map.destroy();
});
}
// see http://trac.osgeo.org/openlayers/ticket/3264
function test_externalGraphic_moveTo(t) {
if (!supported) {
t.plan(0);
return;
}
t.plan(2);
// set up
var layer = new OpenLayers.Layer.Vector(null, {
isBaseLayer: true,
renderers: ["Canvas"]
});
var map = new OpenLayers.Map({
div: "map",
controls: [],
layers: [layer],
center: new OpenLayers.LonLat(0, 0),
zoom: 0
});
var feature = new OpenLayers.Feature.Vector(
new OpenLayers.Geometry.Point(0, 0),
null,
{
externalGraphic: '../../img/marker.png',
graphicHeight: 20,
graphicWidth: 20,
graphicXOffset: 0,
graphicYOffset: 0
}
);
layer.addFeatures([feature]);
// test
// delay_call to let the first drawImage (the one
// resulting from addFeatures) run
t.delay_call(0.1, function() {
var log = [];
layer.renderer.canvas.drawImage = function(img, x, y, w, h) {
log.push({x: x, y: y});
};
layer.renderer.redraw();
map.setCenter(new OpenLayers.LonLat(45, 0), 0);
t.delay_call(0.1, function() {
t.eq(log.length, 2,
"canvas.drawImage called twice");
t.ok(log[0].x == log[1].x && log[0].y == log[1].y,
"image drawn at the same location");
// tear down
map.destroy();
});
});
}
</script>
</head>
<body>
<div id="map" style="width:500px;height:550px"></div>
</body>
</html>
|
