mirror/openseadragon
1
0
Fork 0
mirror of https://github.com/openseadragon/openseadragon.git synced 2024-11-22 13:16:10 +03:00
Code Issues Projects Releases Wiki Activity

Adding functionality for https://github.com/openseadragon/openseadragon/issues/127 - option for home button to fill rather than fit.

Browse Source 
- Added a option to pass to the OpenSeadragon constructor called homeFillsViewer, which defaults to false. If true, the home button will fill the viewer with the image, centered on the image's center, zoomed to fill the viewer at the image's smallest dimension, and clipped at the image's largest dimension. For example, a very tall, thin image in a 4:3 aspect ratio viewer will zoom so that the width of the image fills the viewer, and most of the height of the image is clipped.
This commit is contained in:
nein09 2014-08-29 11:53:29 -07:00
parent bcb16de02b
commit f0f6e93915
2 changed files with 18 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

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
});
}

14
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;
}
}
},
/**
@ -167,7 +174,6 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
var center = this.homeBounds.getCenter( ),
width = 1.0 / this.getHomeZoom( ),
height = width / this.getAspectRatio();
return new $.Rect(
center.x - ( width / 2.0 ),
center.y - ( height / 2.0 ),