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Add asserts on this.viewer.

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This commit is contained in:
Antoine Vandecreme 2016-04-21 10:57:39 -04:00
parent b1a0abd104
commit 65a95d4a49
1 changed files with 22 additions and 14 deletions
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32
src/viewport.js
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@ -1276,10 +1276,12 @@ $.Viewport.prototype = {
* @param {OpenSeadragon.Point} pixel * @param {OpenSeadragon.Point} pixel
* @returns {OpenSeadragon.Point} * @returns {OpenSeadragon.Point}
*/ */
windowToImageCoordinates: function( pixel ) { windowToImageCoordinates: function(pixel) {
$.console.assert(this.viewer,
"[Viewport.windowToImageCoordinates] the viewport must have a viewer.");
var viewerCoordinates = pixel.minus( var viewerCoordinates = pixel.minus(
OpenSeadragon.getElementPosition( this.viewer.element )); $.getElementPosition(this.viewer.element));
return this.viewerElementToImageCoordinates( viewerCoordinates ); return this.viewerElementToImageCoordinates(viewerCoordinates);
}, },
/** /**
@ -1288,10 +1290,12 @@ $.Viewport.prototype = {
* @param {OpenSeadragon.Point} pixel * @param {OpenSeadragon.Point} pixel
* @returns {OpenSeadragon.Point} * @returns {OpenSeadragon.Point}
*/ */
imageToWindowCoordinates: function( pixel ) { imageToWindowCoordinates: function(pixel) {
var viewerCoordinates = this.imageToViewerElementCoordinates( pixel ); $.console.assert(this.viewer,
"[Viewport.imageToWindowCoordinates] the viewport must have a viewer.");
var viewerCoordinates = this.imageToViewerElementCoordinates(pixel);
return viewerCoordinates.plus( return viewerCoordinates.plus(
OpenSeadragon.getElementPosition( this.viewer.element )); $.getElementPosition(this.viewer.element));
}, },
/** /**
@ -1347,10 +1351,12 @@ $.Viewport.prototype = {
* @param {OpenSeadragon.Point} pixel * @param {OpenSeadragon.Point} pixel
* @returns {OpenSeadragon.Point} * @returns {OpenSeadragon.Point}
*/ */
windowToViewportCoordinates: function( pixel ) { windowToViewportCoordinates: function(pixel) {
$.console.assert(this.viewer,
"[Viewport.windowToViewportCoordinates] the viewport must have a viewer.");
var viewerCoordinates = pixel.minus( var viewerCoordinates = pixel.minus(
OpenSeadragon.getElementPosition( this.viewer.element )); $.getElementPosition(this.viewer.element));
return this.viewerElementToViewportCoordinates( viewerCoordinates ); return this.viewerElementToViewportCoordinates(viewerCoordinates);
}, },
/** /**
@ -1358,10 +1364,12 @@ $.Viewport.prototype = {
* @param {OpenSeadragon.Point} point * @param {OpenSeadragon.Point} point
* @returns {OpenSeadragon.Point} * @returns {OpenSeadragon.Point}
*/ */
viewportToWindowCoordinates: function( point ) { viewportToWindowCoordinates: function(point) {
var viewerCoordinates = this.viewportToViewerElementCoordinates( point ); $.console.assert(this.viewer,
"[Viewport.viewportToWindowCoordinates] the viewport must have a viewer.");
var viewerCoordinates = this.viewportToViewerElementCoordinates(point);
return viewerCoordinates.plus( return viewerCoordinates.plus(
OpenSeadragon.getElementPosition( this.viewer.element )); $.getElementPosition(this.viewer.element));
}, },
/** /**