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layers.html test file: -display 2 layers after opening -fix order -add opacity demo -add rotation demo
195 lines
6.7 KiB
HTML
195 lines
6.7 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>OpenSeadragon Layers Demo</title>
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<script type="text/javascript" src='../../build/openseadragon/openseadragon.js'></script>
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<script type="text/javascript" src='../lib/jquery-1.9.1.min.js'></script>
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<style type="text/css">
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.openseadragon1 {
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width: 800px;
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height: 600px;
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float: left;
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}
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#availables, #arrows, #left, #updown, #right {
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float: left;
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}
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</style>
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</head>
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<body>
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<div>
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Simple demo page to show an OpenSeadragon viewer with layers.
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</div>
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<div id="contentDiv" class="openseadragon1"></div>
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<div>
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<div id="availables">
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Availables layers<br>
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<select name="layers-availables" size="4" multiple="multiple">
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<option>CCyan</option>
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<option>DDandelion</option>
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</select>
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</div>
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<div id="arrows">
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<div id="left">
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<button onclick="left();">⇚ Remove</button>
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</div>
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<div id="updown">
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<div id="up">
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<button onclick="up();">⇑ Up</button>
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</div>
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<div id="down">
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<button onclick="down();">⇓ Down</button>
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</div>
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</div>
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<div id="right">
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<button onclick="right();">⇛ Add</button>
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</div>
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</div>
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<div id="used">
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Used layers<br>
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<select name="layers-used" size="4" multiple="multiple">
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<option>A</option>
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<option>BBlue</option>
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</select>
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</div>
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<br><br><br><br>
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<div>
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Opacity: <br>
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<label for="AOpacity" >A</label>
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<input id="AOpacity" type="text" value="0.5"><br>
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<label for="BBlueOpacity" >BBlue</label>
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<input id="BBlueOpacity" type="text" value="1"><br>
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<label for="CCyanOpacity" >CCyan</label>
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<input id="CCyanOpacity" type="text" value="1"><br>
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<label for="DDandelion" >DDandelion</label>
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<input id="DDandelion" type="text" value="1"><br>
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</div>
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<br><br><br><br>
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<div>
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<button onclick="rotate();">Rotate</button>
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</div>
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</div>
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<script type="text/javascript">
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function getOpacity( layerName ) {
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var id = $( "label" ).filter( function( index ) {
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return layerName === this.innerHTML;
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} ).attr( "for" );
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return $( "#" + id ).val();
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}
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function right() {
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var added = $( "#availables select option:selected" ).detach();
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$( "#used select" ).append( added );
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$.each( added, function( index, value ) {
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addLayer( value.innerHTML );
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} );
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}
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function addLayer( layerName ) {
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var options = {
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tileSource: {
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type: 'legacy-image-pyramid',
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levels: [ {
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url: "../data/" + layerName + ".png",
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width: 1000,
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height: 1000
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} ]
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},
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opacity: getOpacity( layerName )
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};
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var addLayerHandler = function( event ) {
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if ( event.options === options ) {
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viewer.removeHandler( "add-layer", addLayerHandler );
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layers[layerName] = event.drawer;
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updateOrder();
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}
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};
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viewer.addHandler( "add-layer", addLayerHandler );
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viewer.addLayer( options );
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}
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function left() {
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var removed = $( "#used select option:selected" ).detach();
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$( "#availables select" ).append( removed );
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$.each( removed, function( index, value ) {
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var layer = value.innerHTML;
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viewer.removeLayer( layers[layer] );
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delete layers[layer];
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updateOrder();
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} );
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}
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function up() {
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$.each( $( "#used select option:selected" ), function( index, value ) {
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$( value ).prev( "option" ).insertAfter( value );
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} );
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updateOrder();
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}
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function down() {
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$.each( $( "#used select option:selected" ).get().reverse(),
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function( index, value ) {
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$( value ).next( "option" ).insertBefore( value );
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} );
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updateOrder();
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}
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function updateOrder() {
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var nbLayers = viewer.getNumberOfLayers();
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if ( nbLayers < 2 ) {
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return;
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}
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$.each( $( "#used select option" ), function( index, value ) {
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var layer = value.innerHTML;
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viewer.setLayerLevel( layers[layer], nbLayers - index );
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} );
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}
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function rotate() {
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var viewport = viewer.viewport;
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viewport.setRotation( viewport.getRotation() + 90 );
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}
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var viewer = OpenSeadragon( {
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id: "contentDiv",
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prefixUrl: "../../build/openseadragon/images/",
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tileSources: "../data/testpattern.dzi",
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showNavigator: true
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} );
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viewer.addHandler( "open", function() {
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$.each( $( "#used select option" ), function( index, value ) {
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var layer = value.innerHTML;
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addLayer( layer );
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} );
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} );
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var layers = { };
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$( "input" ).keyup( function( event ) {
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var elt = event.target;
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var layerName = $( "label" ).filter( function( index ) {
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return $( this ).attr( "for" ) === elt.id;
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} ).html();
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var layer = layers[layerName];
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if ( layer ) {
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var opacity = $(elt).val();
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layer.setOpacity( opacity );
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}
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} );
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</script>
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</body>
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</html>
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