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<html>
<head>
<script src="../OLLoader.js"></script>
<script type="text/javascript">
// turn off tile queue, so we can check img urls in tests
delete OpenLayers.Layer.Grid.prototype.queueTileDraw;
var isMozilla = (navigator.userAgent.indexOf("compatible") == -1);
var tile;
var map, layer;
function setUp() {
map = new OpenLayers.Map("map");
layer = new OpenLayers.Layer(null, {
isBaseLayer: true
});
map.addLayer(layer)
map.setCenter(new OpenLayers.LonLat(0, 0));
}
function tearDown() {
map.destroy();
map = null;
layer = null;
}
function test_Tile_Image_constructor (t) {
t.plan( 6 );
setUp();
var position = new OpenLayers.Pixel(20,30);
var bounds = new OpenLayers.Bounds(1,2,3,4);
var url = "http://www.openlayers.org/dev/tests/tileimage";
var size = new OpenLayers.Size(5,6);
tile = new OpenLayers.Tile.Image(layer, position, bounds, url, size);
t.ok( tile instanceof OpenLayers.Tile.Image, "new OpenLayers.Tile returns Tile object" );
t.ok( tile.layer == layer, "tile.layer is set correctly");
t.ok( tile.position.equals(position), "tile.position is set correctly");
t.ok( tile.bounds.equals(bounds), "tile.bounds is set correctly");
t.eq( tile.url, url, "tile.url is set correctly");
t.ok( tile.size.equals(size), "tile.size is set correctly");
tearDown();
}
function test_destroy_observers(t) {
t.plan(2);
var map = new OpenLayers.Map('map');
var layer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
"../../img/blank.gif", {layers: 'basic'});
map.addLayer(layer);
var position = new OpenLayers.Pixel(20,30);
var bounds = new OpenLayers.Bounds(1,2,3,4);
var size = new OpenLayers.Size(5,6);
// with alpha hack
var withAlpha = new OpenLayers.Tile.Image(layer, position, bounds, null, size);
withAlpha.layerAlphaHack = true;
withAlpha.draw();
var cacheID = withAlpha.imgDiv._eventCacheID;
withAlpha.destroy();
t.eq(OpenLayers.Event.observers[cacheID], undefined,
"With alpha hack: imgDiv observers are cleared in destroy");
// without alpha hack
var withoutAlpha = new OpenLayers.Tile.Image(layer, position, bounds, null, size);
withoutAlpha.layerAlphaHack = false;
withoutAlpha.draw();
var cacheID = withoutAlpha.imgDiv._eventCacheID;
withoutAlpha.destroy();
t.eq(OpenLayers.Event.observers[cacheID], undefined,
"Without alpha hack: imgDiv observers are cleared in destroy");
map.destroy();
}
function test_Tile_Image_async (t) {
t.plan( 3 );
var map = new OpenLayers.Map('map');
var layer = new OpenLayers.Layer.WMS(
"Name",
"../../img/blank.gif",
{layers: 'basic'}, {async: true, getURLasync: function(bounds, callback, scope) {
callback.call(scope, this.getURL(bounds));
}}
);
map.addLayer(layer);
var position = new OpenLayers.Pixel(20,30);
var bounds = new OpenLayers.Bounds(1,2,3,4);
tile = layer.addTile(bounds, position);
tile.renderTile();
t.delay_call(0.1, function() {
var expected = new Image();
expected.src = layer.getURL(bounds);
t.eq(tile.imgDiv.src, expected.src, "image src correct for async request");
t.eq(tile.asyncRequestId, 1, "asyncRequestId correct after renderTile");
tile.renderTile();
});
t.delay_call(0.2, function() {
t.eq(tile.asyncRequestId, 2, "asyncRequestId correct after subsequent renderTile");
tile.destroy();
layer.destroy();
map.destroy();
});
}
function test_Tile_Image_draw (t) {
t.plan(7);
var map = new OpenLayers.Map('map');
var size = new OpenLayers.Size(5,6);
layer = new OpenLayers.Layer.WMS("Name",
"../../img/blank.gif",
null,
{tileSize: size});
map.addLayer(layer);
var position = new OpenLayers.Pixel(20,30);
var bounds = new OpenLayers.Bounds(1,2,3,4);
var url = "http://www.openlayers.org/dev/tests/tileimage";
tile = new OpenLayers.Tile.Image(layer, position, bounds, url, size);
tile.events.register("loadstart", this, function() {
t.ok(true, "loadstart triggered");
});
tile.events.register("reload", this, function() {
t.ok(true, "reload triggered");
});
//this should trigger a "loadstart" event
tile.draw();
if (!isMozilla)
t.ok( true, "skipping element test outside of Mozilla");
else
t.ok( tile.imgDiv instanceof HTMLElement, "tile.draw creates an image");
var tParams = {
SERVICE: "WMS", VERSION: "1.1.1",
REQUEST: "GetMap", STYLES: "",
FORMAT: "image/jpeg",
SRS: "EPSG:4326", BBOX: [1,2,3,4],
WIDTH: String(size.w), HEIGHT: String(size.h)
};
var expected = new Image();
expected.src = "../../img/blank.gif?" + OpenLayers.Util.getParameterString(tParams)
t.delay_call(0.1, function() {
t.eq( tile.imgDiv.src, expected.src, "tile.draw creates an image");
});
t.eq( tile.imgDiv.style.width, "5px", "Image width is correct" );
t.eq( tile.imgDiv.style.height, "6px", "Image height is correct" );
t.ok( tile.imgDiv.parentNode === layer.div, "Image is directly appended to the layer div" );
// this should trigger a "reload" event (since the image never actually
// loads in tests)
tile.draw();
}
function test_Tile_Image_OutsideMaxExtent(t) {
t.plan( 11 );
var position = new OpenLayers.Pixel(20,30);
var bounds = new OpenLayers.Bounds(1,2,3,4);
var url = "http://www.openlayers.org/dev/tests/tileimage";
var size = new OpenLayers.Size(5,6);
var map = new OpenLayers.Map('map');
var layer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
"../../img/blank.gif", {layers: 'basic'}, {encodeBBOX: true});
map.addLayer(layer);
tile = new OpenLayers.Tile.Image(layer, position, new OpenLayers.Bounds(-185,-90,-180,90), url, size);
tile.draw()
t.eq(tile.imgDiv, null, "Images against side of maxextent don't load");
tile = new OpenLayers.Tile.Image(layer, position, new OpenLayers.Bounds(-181,-91,180,90), url, size);
tile.draw()
var tParams = {
LAYERS: "basic", SERVICE: "WMS", VERSION: "1.1.1",
REQUEST: "GetMap", STYLES: "",
FORMAT: "image/jpeg",
SRS: "EPSG:4326", BBOX: "-181,-91,180,90",
WIDTH: "256", HEIGHT: "256"
};
t.eq(tile.url,
"../../img/blank.gif?" + OpenLayers.Util.getParameterString(tParams),
"Images over edges of maxextent do load");
tile = new OpenLayers.Tile.Image(layer, position, new OpenLayers.Bounds(-181,-90,180,90), url, size);
tile.draw()
tParams = OpenLayers.Util.extend(tParams, {BBOX: "-181,-90,180,90"});
t.eq(tile.url,
"../../img/blank.gif?" + OpenLayers.Util.getParameterString(tParams),
"Images over edges of maxextent do load");
tile = new OpenLayers.Tile.Image(layer, position, new OpenLayers.Bounds(-180,-90,180,90), url, size);
tile.draw()
tParams = OpenLayers.Util.extend(tParams, {BBOX: "-180,-90,180,90"});
t.eq(tile.url,
"../../img/blank.gif?" + OpenLayers.Util.getParameterString(tParams),
"Image covering all of extent loads");
tile = new OpenLayers.Tile.Image(layer, position, new OpenLayers.Bounds(-80,-45,80,45), url, size);
tile.draw()
tParams = OpenLayers.Util.extend(tParams, {BBOX: "-80,-45,80,45"});
t.eq(tile.url,
"../../img/blank.gif?" + OpenLayers.Util.getParameterString(tParams),
"Image covering small part of extent loads");
tile = new OpenLayers.Tile.Image(layer, position, new OpenLayers.Bounds(-185,-95,185,95), url, size);
tile.draw()
tParams = OpenLayers.Util.extend(tParams, {BBOX: "-185,-95,185,95"});
t.eq(tile.url,
"../../img/blank.gif?" + OpenLayers.Util.getParameterString(tParams),
"Image covering more than all of extent loads");
layer.displayOutsideMaxExtent=1;
tile = new OpenLayers.Tile.Image(layer, position, new OpenLayers.Bounds(-185,-90,-180,90), url, size);
tile.draw()
tParams = OpenLayers.Util.extend(tParams, {BBOX: "-185,-90,-180,90"});
t.eq(tile.url,
"../../img/blank.gif?" + OpenLayers.Util.getParameterString(tParams),
"Images against side of maxextent do load with displayOutsideMaxExtent");
tile = new OpenLayers.Tile.Image(layer, position, new OpenLayers.Bounds(-181,-90,180,90), url, size);
tile.draw()
tParams = OpenLayers.Util.extend(tParams, {BBOX: "-181,-90,180,90"});
t.eq(tile.url,
"../../img/blank.gif?" + OpenLayers.Util.getParameterString(tParams),
"Images over edges of maxextent do load with displayOutsideMaxExtent set");
tile = new OpenLayers.Tile.Image(layer, position, new OpenLayers.Bounds(-180,-90,180,90), url, size);
tile.draw()
tParams = OpenLayers.Util.extend(tParams, {BBOX: "-180,-90,180,90"});
t.eq(tile.url,
"../../img/blank.gif?" + OpenLayers.Util.getParameterString(tParams),
"Image covering all of extent loads with display outside max extent");
tile = new OpenLayers.Tile.Image(layer, position, new OpenLayers.Bounds(-80,-45,80,45), url, size);
tile.draw()
tParams = OpenLayers.Util.extend(tParams, {BBOX: "-80,-45,80,45"});
t.eq(tile.url,
"../../img/blank.gif?" + OpenLayers.Util.getParameterString(tParams),
"Image covering small part of extent loads with display outside max extent");
tile = new OpenLayers.Tile.Image(layer, position, new OpenLayers.Bounds(-185,-95,185,95), url, size);
tile.draw()
tParams = OpenLayers.Util.extend(tParams, {BBOX: "-185,-95,185,95"});
t.eq(tile.url,
"../../img/blank.gif?" + OpenLayers.Util.getParameterString(tParams),
"Image covering more than all of extent loads");
}
function test_Tile_Image_Display_After_Move(t) {
t.plan(2);
var position = new OpenLayers.Pixel(20,30);
var bounds = new OpenLayers.Bounds(1,2,3,4);
var url = "http://www.openlayers.org/dev/tests/tileimage";
var size = new OpenLayers.Size(5,6);
var map = new OpenLayers.Map('map');
var layer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
"../../img/blank.gif", {layers: 'basic'});
map.addLayer(layer);
map.zoomToMaxExtent();
tile = new OpenLayers.Tile.Image(layer, position, new OpenLayers.Bounds(-90,-85,-90,85), url, size);
tile.draw();
tile.moveTo(new OpenLayers.Bounds(-185,-90,-180,-80), new OpenLayers.Pixel(-180,-85), true);
t.delay_call( 1, function() { t.ok(!tile.imgDiv, "Reference to tile image removed.") } );
var layer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
"../../img/blank.gif", {layers: 'basic'}, {'alpha':true});
map.addLayer(layer);
tile = new OpenLayers.Tile.Image(layer, position, new OpenLayers.Bounds(-90,-85,-90,85), url, size);
tile.draw();
tile.moveTo(new OpenLayers.Bounds(-185,-90,-180,-80), new OpenLayers.Pixel(-180,-85), true)
t.delay_call( 1, function() { t.ok(!tile.imgDiv, "Reference to alpha tile image removed.") } );
}
function test_Tile_Image_gutters(t) {
t.plan(5);
var gutter = 0;
var name = 'Test Layer';
var url = "http://octo.metacarta.com/cgi-bin/mapserv";
var params = { map: '/mapdata/vmap_wms.map',
layers: 'basic',
format: 'image/png'};
var map = new OpenLayers.Map('map', {tileManager: null});
var layer = new OpenLayers.Layer.WMS(name, url, params, {gutter: gutter});
map.addLayer(layer);
map.setCenter(new OpenLayers.LonLat(0,0), 5);
var tile = layer.grid[0][0];
t.ok(tile.layer.imageSize == null,
"zero size gutter doesn't set image size");
var zero_gutter_bounds = tile.bounds;
map.destroy();
var gutter = 15;
var map = new OpenLayers.Map('map', {tileManager: null});
var layer = new OpenLayers.Layer.WMS(name, url, params, {gutter: gutter});
map.addLayer(layer);
map.setCenter(new OpenLayers.LonLat(0,0), 5);
var tile = layer.grid[0][0];
t.ok(tile.layer.imageSize.equals(new OpenLayers.Size(tile.size.w + (2 * gutter),
tile.size.h + (2 * gutter))),
"gutter properly changes image size");
var offsetLeft = -(gutter / layer.tileSize.w * 100) | 0;
var offsetTop = -(gutter / layer.tileSize.h * 100) | 0;
t.eq(parseInt(tile.imgDiv.style.left, 10), offsetLeft,
"gutter properly sets image left style");
t.eq(parseInt(tile.imgDiv.style.top, 10), offsetTop,
"gutter properly sets image top style");
t.ok(tile.bounds.equals(zero_gutter_bounds),
"gutter doesn't affect tile bounds");
map.destroy();
}
function test_createBackBuffer(t) {
t.plan(3);
var map = new OpenLayers.Map('map', {tileManager: null});
var layer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
"../../img/blank.gif", {layers: 'basic'});
map.addLayer(layer);
map.setCenter(new OpenLayers.LonLat(0,0), 5);
var tile = layer.grid[0][0];
// we're going to create a back buffer while the image
// is actually loading, so we call stopObservingElement
// to avoid any unexpected behavior
tile.isLoading = false;
OpenLayers.Event.stopObservingElement(tile.imgDiv);
var img = tile.imgDiv;
var left = img.style.left;
var bb = tile.createBackBuffer();
t.eq(bb.style.left, left, "backbuffer has same left style as frame");
t.ok(bb === img, "image appended to bb");
t.ok(tile.imgDiv == null, "image reference removed from tile");
map.destroy();
}
function test_onImageLoad(t) {
t.plan(3);
var map = new OpenLayers.Map('map', {tileManager: null});
var layer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
"../../img/blank.gif", {layers: 'basic'}, {opacity: 0.5});
map.addLayer(layer);
map.setCenter(new OpenLayers.LonLat(0,0), 5);
var tile = layer.grid[0][0];
var log;
tile.events.on({loadend: function() { log++; }});
log = 0;
tile.onImageLoad();
t.eq(tile.imgDiv.style.visibility, 'inherit',
'onImageLoad makes the image visible');
t.eq(parseFloat(tile.imgDiv.style.opacity), 0.5,
'onImageLoad sets the expected opacity for the image');
t.eq(log, 1,
'onImageLoad does trigger loadend');
map.destroy();
}
function test_getCanvasContext(t) {
if (!OpenLayers.CANVAS_SUPPORTED) {
t.plan(0);
} else {
t.plan(1);
var map = new OpenLayers.Map('map');
var layer = new OpenLayers.Layer.WMS("blank",
"../../img/blank.gif", {layers: 'fake'});
map.addLayer(layer);
map.setCenter(new OpenLayers.LonLat(0, 0), 5);
t.delay_call(5, function() {
var tile = layer.grid[0][0];
tile.onImageLoad();
t.ok(tile.getCanvasContext() instanceof CanvasRenderingContext2D,
"getCanvasContext() returns CanvasRenderingContext2D instance");
map.destroy();
});
}
}
/*
* A series of tests to verify the dimensions and positions
* of the tile frame and img after draw.
* Written for https://github.com/openlayers/openlayers/issues/441
*/
function test_draw_without_gutter_without_frame(t) {
t.plan(5);
var map = new OpenLayers.Map('map');
var layer = new OpenLayers.Layer.WMS('blank',
'../../img/blank.gif',
{layers: 'fake'},
{isBaseLayer: true});
map.addLayer(layer);
var tile = new OpenLayers.Tile.Image(
layer,
new OpenLayers.Pixel(6, 6),
new OpenLayers.Bounds(5, 45, 6, 46),
null,
new OpenLayers.Size(256, 256));
tile.draw();
t.eq(tile.frame, null, 'no frame');
t.eq(parseInt(tile.imgDiv.style.left, 10), 6, 'correct tile img left');
t.eq(parseInt(tile.imgDiv.style.top, 10), 6, 'correct tile img top');
t.eq(parseInt(tile.imgDiv.style.width, 10), 256, 'correct tile img width');
t.eq(parseInt(tile.imgDiv.style.height, 10), 256, 'correct tile img height');
map.destroy();
}
function test_draw_without_gutter_with_frame(t) {
t.plan(8);
var map = new OpenLayers.Map('map');
var layer = new OpenLayers.Layer.WMS('blank',
'../../img/blank.gif',
{layers: 'fake'},
{isBaseLayer: true});
map.addLayer(layer);
layer.gutter = 1; // this is just for a frame to be created for
// the tile
var tile = new OpenLayers.Tile.Image(
layer,
new OpenLayers.Pixel(6, 6),
new OpenLayers.Bounds(5, 45, 6, 46),
null,
new OpenLayers.Size(256, 256));
layer.gutter = null;
tile.draw();
t.eq(parseInt(tile.frame.style.left, 10), 6, 'correct tile frame left');
t.eq(parseInt(tile.frame.style.top, 10), 6, 'correct tile frame top');
t.eq(parseInt(tile.frame.style.width, 10), 256, 'correct tile frame width');
t.eq(parseInt(tile.frame.style.height, 10), 256, 'correct tile frame height');
t.eq(parseInt(tile.imgDiv.style.left, 10), 0, 'correct tile img left');
t.eq(parseInt(tile.imgDiv.style.top, 10), 0, 'correct tile img top');
t.eq(parseInt(tile.imgDiv.style.width, 10), 100, 'correct tile img width');
t.eq(parseInt(tile.imgDiv.style.height, 10), 100, 'correct tile img height');
map.destroy();
}
function test_draw_with_gutter(t) {
t.plan(8);
var map = new OpenLayers.Map('map');
var layer = new OpenLayers.Layer.WMS('blank',
'../../img/blank.gif',
{layers: 'fake'},
{isBaseLayer: true, gutter: 15});
map.addLayer(layer);
var tile = new OpenLayers.Tile.Image(
layer,
new OpenLayers.Pixel(6, 6),
new OpenLayers.Bounds(5, 45, 6, 46),
null,
new OpenLayers.Size(256, 256));
tile.draw();
t.eq(parseInt(tile.frame.style.left, 10), 6, 'correct tile frame left');
t.eq(parseInt(tile.frame.style.top, 10), 6, 'correct tile frame top');
t.eq(parseInt(tile.frame.style.width, 10), 256, 'correct tile frame width');
t.eq(parseInt(tile.frame.style.height, 10), 256, 'correct tile frame height');
t.eq(parseInt(tile.imgDiv.style.left, 10), -5, 'correct tile img left');
t.eq(parseInt(tile.imgDiv.style.top, 10), -5, 'correct tile img top');
t.eq(parseInt(tile.imgDiv.style.width, 10), 111, 'correct tile img width');
t.eq(parseInt(tile.imgDiv.style.height, 10), 111, 'correct tile img height');
map.destroy();
}
</script>
</head>
<body>
<div id="map" style="height:550px;width:500px"></div>
</body>
</html>
|
