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Merge pull request #474 from nein09/issue-127

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Add option for home button to fill viewer (issue 127)
This commit is contained in:
iangilman 2014-09-15 13:24:55 -07:00
commit 356b7e1f5f
3 changed files with 49 additions and 35 deletions
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5
src/openseadragon.js
View File

@ -221,6 +221,10 @@
*
* @property {Number} [maxZoomLevel=null]
*
* @property {Boolean} [homeFillsViewer=false]
* Make the 'home' button fill the viewer and clip the image, instead
* of fitting the image to the viewer and letterboxing.
*
* @property {Boolean} [panHorizontal=true]
* Allow horizontal pan.
*
@ -912,6 +916,7 @@ window.OpenSeadragon = window.OpenSeadragon || function( options ){
defaultZoomLevel: 0,
minZoomLevel: null,
maxZoomLevel: null,
homeFillsViewer: false,
//UI RESPONSIVENESS AND FEEL
clickTimeThreshold: 300,

6
src/viewer.js
View File

@ -1937,7 +1937,8 @@ function openTileSource( viewer, source ) {
degrees: _this.degrees //,
//TODO: figure out how to support these in a way that makes sense
//minZoomLevel: this.minZoomLevel,
//maxZoomLevel: this.maxZoomLevel
//maxZoomLevel: this.maxZoomLevel,
//homeFillsViewer: this.homeFillsViewer
});
} else {
if( source ){
@ -1958,7 +1959,8 @@ function openTileSource( viewer, source ) {
maxZoomLevel: _this.maxZoomLevel,
viewer: _this,
degrees: _this.degrees,
navigatorRotate: _this.navigatorRotate
navigatorRotate: _this.navigatorRotate,
homeFillsViewer: _this.homeFillsViewer
});
}

13
src/viewport.js
View File

@ -84,7 +84,8 @@ $.Viewport = function( options ) {
defaultZoomLevel: $.DEFAULT_SETTINGS.defaultZoomLevel,
minZoomLevel: $.DEFAULT_SETTINGS.minZoomLevel,
maxZoomLevel: $.DEFAULT_SETTINGS.maxZoomLevel,
degrees: $.DEFAULT_SETTINGS.degrees
degrees: $.DEFAULT_SETTINGS.degrees,
homeFillsViewer: $.DEFAULT_SETTINGS.homeFillsViewer
}, options );
@ -148,16 +149,22 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
* @function
*/
getHomeZoom: function() {
if( this.defaultZoomLevel ){
return this.defaultZoomLevel;
} else {
var aspectFactor =
this.contentAspectX / this.getAspectRatio();
if( this.defaultZoomLevel ){
return this.defaultZoomLevel;
if( this.homeFillsViewer ){ // fill the viewer and clip the image
return ( aspectFactor >= 1) ?
aspectFactor :
1;
} else {
return ( aspectFactor >= 1 ) ?
1 :
aspectFactor;
}
}
},
/**