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Merge pull request #1625 from buda-base/fix-1617-2

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fix for #1617 and #1343
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Ian Gilman 2019-03-19 10:45:49 -07:00 committed by GitHub
commit fe3e7e5534
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1 changed files with 37 additions and 15 deletions
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52
src/iiiftilesource.js
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@ -42,6 +42,8 @@
* @memberof OpenSeadragon
* @extends OpenSeadragon.TileSource
* @see http://iiif.io/api/image/
* @param {String} [options.tileFormat='jpg']
* The extension that will be used when requiring tiles.
*/
$.IIIFTileSource = function( options ){
@ -55,6 +57,8 @@ $.IIIFTileSource = function( options ){
options.tileSizePerScaleFactor = {};
this.tileFormat = this.tileFormat || 'jpg';
// N.B. 2.0 renamed scale_factors to scaleFactors
if ( this.tile_width && this.tile_height ) {
options.tileWidth = this.tile_width;
@ -337,32 +341,46 @@ $.extend( $.IIIFTileSource.prototype, $.TileSource.prototype, /** @lends OpenSea
iiifTileW,
iiifTileH,
iiifSize,
iiifSizeW,
iiifQuality,
uri;
uri,
isv1;
tileWidth = this.getTileWidth(level);
tileHeight = this.getTileHeight(level);
iiifTileSizeWidth = Math.ceil( tileWidth / scale );
iiifTileSizeHeight = Math.ceil( tileHeight / scale );
if ( this['@context'].indexOf('/1.0/context.json') > -1 ||
isv1 = ( this['@context'].indexOf('/1.0/context.json') > -1 ||
this['@context'].indexOf('/1.1/context.json') > -1 ||
this['@context'].indexOf('/1/context.json') > -1 ) {
iiifQuality = "native.jpg";
this['@context'].indexOf('/1/context.json') > -1 );
if (isv1) {
iiifQuality = "native." + this.tileFormat;
} else {
iiifQuality = "default.jpg";
iiifQuality = "default." + this.tileFormat;
}
if ( levelWidth < tileWidth && levelHeight < tileHeight ){
iiifSize = levelWidth + ",";
if ( isv1 || levelWidth !== this.width ) {
iiifSize = levelWidth + ",";
} else {
iiifSize = "max";
}
iiifRegion = 'full';
} else {
iiifTileX = x * iiifTileSizeWidth;
iiifTileY = y * iiifTileSizeHeight;
iiifTileW = Math.min( iiifTileSizeWidth, this.width - iiifTileX );
iiifTileH = Math.min( iiifTileSizeHeight, this.height - iiifTileY );
iiifSize = Math.ceil( iiifTileW * scale ) + ",";
iiifRegion = [ iiifTileX, iiifTileY, iiifTileW, iiifTileH ].join( ',' );
if ( x === 0 && y === 0 && iiifTileW === this.width && iiifTileH === this.height ) {
iiifRegion = "full";
} else {
iiifRegion = [ iiifTileX, iiifTileY, iiifTileW, iiifTileH ].join( ',' );
}
iiifSizeW = Math.ceil( iiifTileW * scale );
if ( (!isv1) && iiifSizeW === this.width ) {
iiifSize = "max";
} else {
iiifSize = iiifSizeW + ",";
}
}
uri = [ this['@id'], iiifRegion, iiifSize, IIIF_ROTATION, iiifQuality ].join( '/' );
@ -374,17 +392,21 @@ $.extend( $.IIIFTileSource.prototype, $.TileSource.prototype, /** @lends OpenSea
/**
* Determine whether arbitrary tile requests can be made against a service with the given profile
* @function
* @param {object} profile - IIIF profile object
* @param {array} profile - IIIF profile array
* @throws {Error}
*/
function canBeTiled (profile ) {
function canBeTiled ( profile ) {
var level0Profiles = [
"http://library.stanford.edu/iiif/image-api/compliance.html#level0",
"http://library.stanford.edu/iiif/image-api/1.1/compliance.html#level0",
"http://iiif.io/api/image/2/level0.json"
];
var isLevel0 = (level0Profiles.indexOf(profile[0]) != -1);
return !isLevel0 || (profile.indexOf("sizeByW") != -1);
var isLevel0 = (level0Profiles.indexOf(profile[0]) !== -1);
var hasSizeByW = false;
if ( profile.length > 1 && profile[1].supports ) {
hasSizeByW = profile[1].supports.indexOf( "sizeByW" ) !== -1;
}
return !isLevel0 || hasSizeByW;
}
/**
@ -397,7 +419,7 @@ $.extend( $.IIIFTileSource.prototype, $.TileSource.prototype, /** @lends OpenSea
var levels = [];
for(var i = 0; i < options.sizes.length; i++) {
levels.push({
url: options['@id'] + '/full/' + options.sizes[i].width + ',/0/default.jpg',
url: options['@id'] + '/full/' + options.sizes[i].width + ',/0/default.' + options.tileFormat,
width: options.sizes[i].width,
height: options.sizes[i].height
});