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Add basic layers support

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This commit is contained in:
Antoine Vandecreme 2013-11-30 17:28:17 -05:00
parent 95c945ca8a
commit 58da998d75
1 changed files with 31 additions and 3 deletions
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34
src/viewer.js
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@ -578,6 +578,7 @@ $.extend( $.Viewer.prototype, $.EventSource.prototype, $.ControlDock.prototype,
this.source = null;
this.drawer = null;
this.drawers = [];
this.viewport = this.preserveViewport ? this.viewport : null;
//this.profiler = null;
@ -1045,6 +1046,20 @@ $.extend( $.Viewer.prototype, $.EventSource.prototype, $.ControlDock.prototype,
return this;
},
/**
* @function
* @name OpenSeadragon.Viewer.prototype.addLayer
*/
addLayer: function( tileSource ) {
var drawer = new $.Drawer(
tileSource,
this.viewport,
this.canvas
);
this.drawers.push( drawer );
updateOnce( this );
return drawer.canvas;
},
/**
* @function
@ -1460,6 +1475,7 @@ function openTileSource( viewer, source ) {
debugMode: _this.debugMode,
debugGridColor: _this.debugGridColor
});
_this.drawers.push( _this.drawer );
//Instantiate a navigator if configured
if ( _this.showNavigator && !_this.collectionMode ){
@ -1929,7 +1945,7 @@ function updateOnce( viewer ) {
}
if ( animated ) {
viewer.drawer.update();
updateDrawers( viewer );
if( viewer.navigator ){
viewer.navigator.update( viewer.viewport );
}
@ -1943,8 +1959,8 @@ function updateOnce( viewer ) {
* @property {?Object} userData - Arbitrary subscriber-defined object.
*/
viewer.raiseEvent( "animation" );
} else if ( THIS[ viewer.hash ].forceRedraw || viewer.drawer.needsUpdate() ) {
viewer.drawer.update();
} else if ( THIS[ viewer.hash ].forceRedraw || drawersNeedUpdate( viewer ) ) {
updateDrawers( viewer );
if( viewer.navigator ){
viewer.navigator.update( viewer.viewport );
}
@ -1998,6 +2014,18 @@ function resizeViewportAndRecenter( viewer, containerSize, oldBounds, oldCenter
viewport.fitBounds( newBounds, true );
}
function updateDrawers( viewer ) {
viewer.drawers.forEach( function( drawer ) {
drawer.update();
});
}
function drawersNeedUpdate( viewer ) {
return viewer.drawers.some( function( drawer ) {
return drawer.needsUpdate();
});
}
///////////////////////////////////////////////////////////////////////////////
// Navigation Controls
///////////////////////////////////////////////////////////////////////////////