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Merge https://github.com/openseadragon/openseadragon

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This commit is contained in:
Mei-Hui Su 2016-01-14 12:32:54 -08:00
commit 3cfe8ecac2
41 changed files with 1786 additions and 411 deletions
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2
.gitignore vendored
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@ -5,3 +5,5 @@ sftp-config.json
coverage/
temp/
.idea
/nbproject/private/
.directory

1
Gruntfile.js
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@ -39,6 +39,7 @@ module.exports = function(grunt) {
"src/osmtilesource.js",
"src/tmstilesource.js",
"src/legacytilesource.js",
"src/imagetilesource.js",
"src/tilesourcecollection.js",
"src/button.js",
"src/buttongroup.js",

46
changelog.txt
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@ -1,42 +1,54 @@
OPENSEADRAGON CHANGELOG
=======================
2.1.0: (in progress)
2.1.1: (in progress)
* Tile edge smoothing at high zoom (#764)
* Fixed issue with reference strip popping up virtual keyboard on mobile devices (#779)
* Now supporting rotation in the Rect class (#782)
* Drag outside of iframe now works better, as long as both pages are on the same domain (#790)
* Coordinate conversion now takes rotation into account (#796)
* Support tile-less IIIF as per LegacyTileSource (#816)
* You can now give an empty string to the tabIndex option (#805)
2.1.0:
* BREAKING CHANGE: the tile does not hold a reference to its image anymore. Only the tile cache keep a reference to images.
* BREAKING CHANGE: TileSource.tileSize no longer exists; use TileSource.getTileWidth() and TileSource.getTileHeight() instead.
* DEPRECATION: let ImageRecord.getRenderedContext create the rendered context instead of using ImageRecord.setRenderedContext
* DEPRECATION: TileSource.getTileSize() is deprecated. Use TileSource.getTileWidth() and TileSource.getTileHeight() instead.
* Added "tile-loaded" event on the viewer allowing to modify a tile before it is marked ready to be drawn (#659)
* Added "tile-unloaded" event on the viewer allowing to free up memory one has allocated on a tile (#659)
* Fixed flickering tiles with useCanvas=false when no cache is used (#661)
* Added additional coordinates conversion methods to TiledImage (#662)
* 'display: none' no longer gets reset on overlays during draw (#668)
* Added `preserveImageSizeOnResize` option (#666)
* Better error reporting for tile load failures (#679)
* Added collectionColumns as a configuration parameter (#680)
* Changed resize behaviour to prevent "snapping" to world bounds when constraints allow more space (#711)
* Added support for non-square tiles (#673)
* TileSource.Options objects can now optionally provide tileWidth/tileHeight instead of tileSize for non-square tile support.
* IIIFTileSources will now respect non-square tiles if available.
* Added new tile source for simple images: ImageTileSource (#760)
* Optimized adding large numbers of items to the world with collectionMode (#735)
* Registers as an AMD module where possible (#719)
* Added "tile-loaded" event on the viewer allowing to modify a tile before it is marked ready to be drawn (#659)
* Added "tile-unloaded" event on the viewer allowing to free up memory one has allocated on a tile (#659)
* Added 'tile-load-failed' event (#725)
* Added additional coordinates conversion methods to TiledImage (#662)
* Added `preserveImageSizeOnResize` option (#666)
* Added collectionColumns as a configuration parameter (#680)
* Added option in addTiledImage to replace tiledImage at index (#706)
* Added autoRefigureSizes flag to World for optimizing mass rearrangements (#715)
* You can now change viewport margins after the viewer is created (#721)
* Added a patch to help slow down the scroll devices that fire too fast (#754)
* Fixed flickering tiles with useCanvas=false when no cache is used (#661)
* 'display: none' no longer gets reset on overlays during draw (#668)
* Better error reporting for tile load failures (#679)
* Added XDomainRequest as fallback method for ajax requests if XMLHttpRequest fails (for IE < 10) (#693)
* Now avoiding using eval when JSON.parse is available (#696)
* Rotation now works properly on retina display (#708)
* Added option in addTiledImage to replace tiledImage at index (#706)
* Changed resize behaviour to prevent "snapping" to world bounds when constraints allow more space (#711)
* Registers as an AMD module where possible (#719)
* Added autoRefigureSizes flag to World for optimizing mass rearrangements (#715)
* Added 'tile-load-failed' event (#725)
* Fixed issue with tiledImages loading tiles at every level instead of just the best level (#728)
* Fixed placeholderFillStyle flicker (#727)
* Fix for Chrome (v45) issue that key is sometimes undefined outside of the for-in loop (#730)
* World.removeAll now cancels any in-flight image loads; same for Viewer.open and Viewer.close (#734)
* Optimized adding large numbers of items to the world with collectionMode (#735)
* Fixed overlays position (use rounding instead of flooring and ceiling) (#741)
* Fixed issue with including overlays in your tileSources array when creating/opening in the viewer (#745)
* Fixed issue in iOS devices that would cause all touch events to fail after a Multitasking Gesture was triggered (#744)
* Fixed an issue with TiledImage setPosition/setWidth/setHeight not reliably triggering a redraw (#720)
* You can now change viewport margins after the viewer is created (#721)
* Fixed zooming in with plus key on a Swedish keyboard (#763)
* Added a patch to help slow down the scroll devices that fire too fast (#754)
2.0.0:

20
nbproject/project.properties Normal file
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@ -0,0 +1,20 @@
auxiliary.org-netbeans-modules-editor-indent.CodeStyle.project.expand-tabs=true
auxiliary.org-netbeans-modules-editor-indent.CodeStyle.project.indent-shift-width=4
auxiliary.org-netbeans-modules-editor-indent.CodeStyle.project.spaces-per-tab=4
auxiliary.org-netbeans-modules-editor-indent.CodeStyle.project.tab-size=8
auxiliary.org-netbeans-modules-editor-indent.CodeStyle.project.text-limit-width=80
auxiliary.org-netbeans-modules-editor-indent.CodeStyle.project.text-line-wrap=none
auxiliary.org-netbeans-modules-editor-indent.CodeStyle.usedProfile=project
auxiliary.org-netbeans-modules-editor-indent.text.javascript.CodeStyle.project.continuationIndentSize=4
auxiliary.org-netbeans-modules-editor-indent.text.javascript.CodeStyle.project.indent-shift-width=4
auxiliary.org-netbeans-modules-editor-indent.text.javascript.CodeStyle.project.spaceBeforeAnonMethodDeclParen=false
auxiliary.org-netbeans-modules-editor-indent.text.x-json.CodeStyle.project.indent-shift-width=2
auxiliary.org-netbeans-modules-editor-indent.text.x-json.CodeStyle.project.spaces-per-tab=2
auxiliary.org-netbeans-modules-web-clientproject-api.js_2e_libs_2e_folder=src
browser.autorefresh.Chromium.INTEGRATED=true
browser.highlightselection.Chromium.INTEGRATED=true
file.reference.openseadragon-openseadragon=.
files.encoding=UTF-8
site.root.folder=${file.reference.openseadragon-openseadragon}
start.file=test/demo/basic.html
web.context.root=/

9
nbproject/project.xml Normal file
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@ -0,0 +1,9 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://www.netbeans.org/ns/project/1">
<type>org.netbeans.modules.web.clientproject</type>
<configuration>
<data xmlns="http://www.netbeans.org/ns/clientside-project/1">
<name>openseadragon</name>
</data>
</configuration>
</project>

16
package.json
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@ -1,7 +1,19 @@
{
"name": "OpenSeadragon",
"version": "2.0.0",
"name": "openseadragon",
"version": "2.1.0",
"description": "Provides a smooth, zoomable user interface for HTML/Javascript.",
"keywords": ["image", "zoom", "pan", "openseadragon", "seadragon", "deepzoom", "dzi", "iiif", "osm", "tms"],
"homepage": "http://openseadragon.github.io/",
"bugs": {
"url": "https://github.com/openseadragon/openseadragon/issues"
},
"license": "BSD-3-Clause",
"files": ["build/openseadragon/"],
"main": "build/openseadragon/openseadragon.js",
"repository": {
"type" : "git",
"url" : "https://github.com/openseadragon/openseadragon.git"
},
"devDependencies": {
"grunt": "^0.4.5",
"grunt-contrib-clean": "^0.5.0",

56
src/drawer.js
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@ -267,13 +267,14 @@ $.Drawer.prototype = /** @lends OpenSeadragon.Drawer.prototype */{
},
/**
* Translates from OpenSeadragon viewer rectangle to drawer rectangle.
* Scale from OpenSeadragon viewer rectangle to drawer rectangle
* (ignoring rotation)
* @param {OpenSeadragon.Rect} rectangle - The rectangle in viewport coordinate system.
* @return {OpenSeadragon.Rect} Rectangle in drawer coordinate system.
*/
viewportToDrawerRectangle: function(rectangle) {
var topLeft = this.viewport.pixelFromPoint(rectangle.getTopLeft(), true);
var size = this.viewport.deltaPixelsFromPoints(rectangle.getSize(), true);
var topLeft = this.viewport.pixelFromPointNoRotate(rectangle.getTopLeft(), true);
var size = this.viewport.deltaPixelsFromPointsNoRotate(rectangle.getSize(), true);
return new $.Rect(
topLeft.x * $.pixelDensityRatio,
@ -290,22 +291,17 @@ $.Drawer.prototype = /** @lends OpenSeadragon.Drawer.prototype */{
* drawingHandler({context, tile, rendered})
* @param {Boolean} useSketch - Whether to use the sketch canvas or not.
* where <code>rendered</code> is the context with the pre-drawn image.
* @param {Float} [scale=1] - Apply a scale to tile position and size. Defaults to 1.
* @param {OpenSeadragon.Point} [translate] A translation vector to offset tile position
*/
drawTile: function( tile, drawingHandler, useSketch ) {
drawTile: function(tile, drawingHandler, useSketch, scale, translate) {
$.console.assert(tile, '[Drawer.drawTile] tile is required');
$.console.assert(drawingHandler, '[Drawer.drawTile] drawingHandler is required');
if (this.useCanvas) {
var context = this._getContext(useSketch);
// TODO do this in a more performant way
// specifically, don't save,rotate,restore every time we draw a tile
if( this.viewport.degrees !== 0 ) {
this._offsetForRotation( tile, this.viewport.degrees, useSketch );
tile.drawCanvas( context, drawingHandler );
this._restoreRotationChanges( tile, useSketch );
} else {
tile.drawCanvas( context, drawingHandler );
}
scale = scale || 1;
tile.drawCanvas(context, drawingHandler, scale, translate);
} else {
tile.drawHTML( this.canvas );
}
@ -371,17 +367,35 @@ $.Drawer.prototype = /** @lends OpenSeadragon.Drawer.prototype */{
/**
* Blends the sketch canvas in the main canvas.
* @param {Float} opacity The opacity of the blending.
* @param {Float} [scale=1] The scale at which tiles were drawn on the sketch. Default is 1.
* Use scale to draw at a lower scale and then enlarge onto the main canvas.
* @param OpenSeadragon.Point} [translate] A translation vector that was used to draw the tiles
* @returns {undefined}
*/
blendSketch: function(opacity, compositeOperation) {
blendSketch: function(opacity, scale, translate, compositeOperation) {
if (!this.useCanvas || !this.sketchCanvas) {
return;
}
scale = scale || 1;
var position = translate instanceof $.Point ?
translate :
new $.Point(0, 0);
this.context.save();
this.context.globalAlpha = opacity;
this.context.globalCompositeOperation = compositeOperation;
this.context.drawImage(this.sketchCanvas, 0, 0);
this.context.drawImage(
this.sketchCanvas,
position.x,
position.y,
this.sketchCanvas.width * scale,
this.sketchCanvas.height * scale,
0,
0,
this.canvas.width,
this.canvas.height
);
>>>>>>> a0a44dbeb5e3030e0acecf108efc19dbd53aaec2
this.context.restore();
},
@ -399,7 +413,7 @@ $.Drawer.prototype = /** @lends OpenSeadragon.Drawer.prototype */{
context.fillStyle = this.debugGridColor;
if ( this.viewport.degrees !== 0 ) {
this._offsetForRotation( tile, this.viewport.degrees );
this._offsetForRotation(this.viewport.degrees);
}
context.strokeRect(
@ -461,7 +475,7 @@ $.Drawer.prototype = /** @lends OpenSeadragon.Drawer.prototype */{
);
if ( this.viewport.degrees !== 0 ) {
this._restoreRotationChanges( tile );
this._restoreRotationChanges();
}
context.restore();
},
@ -487,9 +501,9 @@ $.Drawer.prototype = /** @lends OpenSeadragon.Drawer.prototype */{
},
// private
_offsetForRotation: function( tile, degrees, useSketch ){
var cx = this.canvas.width / 2,
cy = this.canvas.height / 2;
_offsetForRotation: function(degrees, useSketch) {
var cx = this.canvas.width / 2;
var cy = this.canvas.height / 2;
var context = this._getContext(useSketch);
context.save();
@ -500,7 +514,7 @@ $.Drawer.prototype = /** @lends OpenSeadragon.Drawer.prototype */{
},
// private
_restoreRotationChanges: function( tile, useSketch ){
_restoreRotationChanges: function(useSketch) {
var context = this._getContext(useSketch);
context.restore();
},

134
src/iiiftilesource.js
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@ -36,8 +36,8 @@
/**
* @class IIIFTileSource
* @classdesc A client implementation of the International Image Interoperability
* Format: Image API 1.0 - 2.0
* @classdesc A client implementation of the International Image Interoperability Framework
* Format: Image API 1.0 - 2.1
*
* @memberof OpenSeadragon
* @extends OpenSeadragon.TileSource
@ -83,7 +83,7 @@ $.IIIFTileSource = function( options ){
}
}
}
} else {
} else if ( canBeTiled(options.profile) ) {
// use the largest of tileOptions that is smaller than the short dimension
var shortDim = Math.min( this.height, this.width ),
tileOptions = [256,512,1024],
@ -101,9 +101,28 @@ $.IIIFTileSource = function( options ){
// If we're smaller than 256, just use the short side.
options.tileSize = shortDim;
}
} else if (this.sizes && this.sizes.length > 0) {
// This info.json can't be tiled, but we can still construct a legacy pyramid from the sizes array.
// In this mode, IIIFTileSource will call functions from the abstract baseTileSource or the
// LegacyTileSource instead of performing IIIF tiling.
this.emulateLegacyImagePyramid = true;
options.levels = constructLevels( this );
// use the largest available size to define tiles
$.extend( true, options, {
width: options.levels[ options.levels.length - 1 ].width,
height: options.levels[ options.levels.length - 1 ].height,
tileSize: Math.max( options.height, options.width ),
tileOverlap: 0,
minLevel: 0,
maxLevel: options.levels.length - 1
});
this.levels = options.levels;
} else {
$.console.error("Nothing in the info.json to construct image pyramids from");
}
if ( !options.maxLevel ) {
if (!options.maxLevel && !this.emulateLegacyImagePyramid) {
if (!this.scale_factors) {
options.maxLevel = Number(Math.ceil(Math.log(Math.max(this.width, this.height), 2)));
} else {
@ -192,6 +211,11 @@ $.extend( $.IIIFTileSource.prototype, $.TileSource.prototype, /** @lends OpenSea
* @param {Number} level
*/
getTileWidth: function( level ) {
if(this.emulateLegacyImagePyramid) {
return $.TileSource.prototype.getTileWidth.call(this, level);
}
var scaleFactor = Math.pow(2, this.maxLevel - level);
if (this.tileSizePerScaleFactor && this.tileSizePerScaleFactor[scaleFactor]) {
@ -206,6 +230,11 @@ $.extend( $.IIIFTileSource.prototype, $.TileSource.prototype, /** @lends OpenSea
* @param {Number} level
*/
getTileHeight: function( level ) {
if(this.emulateLegacyImagePyramid) {
return $.TileSource.prototype.getTileHeight.call(this, level);
}
var scaleFactor = Math.pow(2, this.maxLevel - level);
if (this.tileSizePerScaleFactor && this.tileSizePerScaleFactor[scaleFactor]) {
@ -214,9 +243,61 @@ $.extend( $.IIIFTileSource.prototype, $.TileSource.prototype, /** @lends OpenSea
return this._tileHeight;
},
/**
* @function
* @param {Number} level
*/
getLevelScale: function ( level ) {
if(this.emulateLegacyImagePyramid) {
var levelScale = NaN;
if (this.levels.length > 0 && level >= this.minLevel && level <= this.maxLevel) {
levelScale =
this.levels[level].width /
this.levels[this.maxLevel].width;
}
return levelScale;
}
return $.TileSource.prototype.getLevelScale.call(this, level);
},
/**
* Responsible for retreiving the url which will return an image for the
* @function
* @param {Number} level
*/
getNumTiles: function( level ) {
if(this.emulateLegacyImagePyramid) {
var scale = this.getLevelScale(level);
if (scale) {
return new $.Point(1, 1);
} else {
return new $.Point(0, 0);
}
}
return $.TileSource.prototype.getNumTiles.call(this, level);
},
/**
* @function
* @param {Number} level
* @param {OpenSeadragon.Point} point
*/
getTileAtPoint: function( level, point ) {
if(this.emulateLegacyImagePyramid) {
return new $.Point(0, 0);
}
return $.TileSource.prototype.getTileAtPoint.call(this, level, point);
},
/**
* Responsible for retrieving the url which will return an image for the
* region specified by the given x, y, and level components.
* @function
* @param {Number} level - z index
@ -226,6 +307,14 @@ $.extend( $.IIIFTileSource.prototype, $.TileSource.prototype, /** @lends OpenSea
*/
getTileUrl: function( level, x, y ){
if(this.emulateLegacyImagePyramid) {
var url = null;
if ( this.levels.length > 0 && level >= this.minLevel && level <= this.maxLevel ) {
url = this.levels[ level ].url;
}
return url;
}
//# constants
var IIIF_ROTATION = '0',
//## get the scale (level as a decimal)
@ -280,6 +369,40 @@ $.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
* @throws {Error}
*/
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);
}
/**
* Build the legacy pyramid URLs (one tile per level)
* @function
* @param {object} options - infoJson
* @throws {Error}
*/
function constructLevels(options) {
var levels = [];
for(var i=0; i<options.sizes.length; i++) {
levels.push({
url: options['@id'] + '/full/' + options.sizes[i].width + ',/0/default.jpg',
width: options.sizes[i].width,
height: options.sizes[i].height
});
}
return levels.sort(function(a,b){return a.width - b.width;});
}
function configureFromXml10(xmlDoc) {
//parse the xml
@ -330,4 +453,5 @@ $.extend( $.IIIFTileSource.prototype, $.TileSource.prototype, /** @lends OpenSea
}
}( OpenSeadragon ));

268
src/imagetilesource.js Normal file
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@ -0,0 +1,268 @@
/*
* OpenSeadragon - ImageTileSource
*
* Copyright (C) 2009 CodePlex Foundation
* Copyright (C) 2010-2013 OpenSeadragon contributors
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of CodePlex Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
(function ($) {
/**
* @class ImageTileSource
* @classdesc The ImageTileSource allows a simple image to be loaded
* into an OpenSeadragon Viewer.
* There are 2 ways to open an ImageTileSource:
* 1. viewer.open({type: 'image', url: fooUrl});
* 2. viewer.open(new OpenSeadragon.ImageTileSource({url: fooUrl}));
*
* With the first syntax, the crossOriginPolicy, ajaxWithCredentials and
* useCanvas options are inherited from the viewer if they are not
* specified directly in the options object.
*
* @memberof OpenSeadragon
* @extends OpenSeadragon.TileSource
* @param {Object} options Options object.
* @param {String} options.url URL of the image
* @param {Boolean} [options.buildPyramid=true] If set to true (default), a
* pyramid will be built internally to provide a better downsampling.
* @param {String|Boolean} [options.crossOriginPolicy=false] Valid values are
* 'Anonymous', 'use-credentials', and false. If false, image requests will
* not use CORS preventing internal pyramid building for images from other
* domains.
* @param {String|Boolean} [options.ajaxWithCredentials=false] Whether to set
* the withCredentials XHR flag for AJAX requests (when loading tile sources).
* @param {Boolean} [options.useCanvas=true] Set to false to prevent any use
* of the canvas API.
*/
$.ImageTileSource = function (options) {
options = $.extend({
buildPyramid: true,
crossOriginPolicy: false,
ajaxWithCredentials: false,
useCanvas: true
}, options);
$.TileSource.apply(this, [options]);
};
$.extend($.ImageTileSource.prototype, $.TileSource.prototype, /** @lends OpenSeadragon.ImageTileSource.prototype */{
/**
* Determine if the data and/or url imply the image service is supported by
* this tile source.
* @function
* @param {Object|Array} data
* @param {String} optional - url
*/
supports: function (data, url) {
return data.type && data.type === "image";
},
/**
*
* @function
* @param {Object} options - the options
* @param {String} dataUrl - the url the image was retreived from, if any.
* @return {Object} options - A dictionary of keyword arguments sufficient
* to configure this tile sources constructor.
*/
configure: function (options, dataUrl) {
return options;
},
/**
* Responsible for retrieving, and caching the
* image metadata pertinent to this TileSources implementation.
* @function
* @param {String} url
* @throws {Error}
*/
getImageInfo: function (url) {
var image = this._image = new Image();
var _this = this;
if (this.crossOriginPolicy) {
image.crossOrigin = this.crossOriginPolicy;
}
if (this.ajaxWithCredentials) {
image.useCredentials = this.ajaxWithCredentials;
}
$.addEvent(image, 'load', function () {
_this.width = image.naturalWidth;
_this.height = image.naturalHeight;
_this.aspectRatio = _this.width / _this.height;
_this.dimensions = new $.Point(_this.width, _this.height);
_this._tileWidth = _this.width;
_this._tileHeight = _this.height;
_this.tileOverlap = 0;
_this.minLevel = 0;
_this.levels = _this._buildLevels();
_this.maxLevel = _this.levels.length - 1;
_this.ready = true;
// Note: this event is documented elsewhere, in TileSource
_this.raiseEvent('ready', {tileSource: _this});
});
$.addEvent(image, 'error', function () {
// Note: this event is documented elsewhere, in TileSource
_this.raiseEvent('open-failed', {
message: "Error loading image at " + url,
source: url
});
});
image.src = url;
},
/**
* @function
* @param {Number} level
*/
getLevelScale: function (level) {
var levelScale = NaN;
if (level >= this.minLevel && level <= this.maxLevel) {
levelScale =
this.levels[level].width /
this.levels[this.maxLevel].width;
}
return levelScale;
},
/**
* @function
* @param {Number} level
*/
getNumTiles: function (level) {
var scale = this.getLevelScale(level);
if (scale) {
return new $.Point(1, 1);
} else {
return new $.Point(0, 0);
}
},
/**
* @function
* @param {Number} level
* @param {OpenSeadragon.Point} point
*/
getTileAtPoint: function (level, point) {
return new $.Point(0, 0);
},
/**
* Retrieves a tile url
* @function
* @param {Number} level Level of the tile
* @param {Number} x x coordinate of the tile
* @param {Number} y y coordinate of the tile
*/
getTileUrl: function (level, x, y) {
var url = null;
if (level >= this.minLevel && level <= this.maxLevel) {
url = this.levels[level].url;
}
return url;
},
/**
* Retrieves a tile context 2D
* @function
* @param {Number} level Level of the tile
* @param {Number} x x coordinate of the tile
* @param {Number} y y coordinate of the tile
*/
getContext2D: function (level, x, y) {
var context = null;
if (level >= this.minLevel && level <= this.maxLevel) {
context = this.levels[level].context2D;
}
return context;
},
// private
//
// Builds the differents levels of the pyramid if possible
// (i.e. if canvas API enabled and no canvas tainting issue).
_buildLevels: function () {
var levels = [{
url: this._image.src,
width: this._image.naturalWidth,
height: this._image.naturalHeight
}];
if (!this.buildPyramid || !$.supportsCanvas || !this.useCanvas) {
// We don't need the image anymore. Allows it to be GC.
delete this._image;
return levels;
}
var currentWidth = this._image.naturalWidth;
var currentHeight = this._image.naturalHeight;
var bigCanvas = document.createElement("canvas");
var bigContext = bigCanvas.getContext("2d");
bigCanvas.width = currentWidth;
bigCanvas.height = currentHeight;
bigContext.drawImage(this._image, 0, 0, currentWidth, currentHeight);
// We cache the context of the highest level because the browser
// is a lot faster at downsampling something it already has
// downsampled before.
levels[0].context2D = bigContext;
// We don't need the image anymore. Allows it to be GC.
delete this._image;
if ($.isCanvasTainted(bigCanvas)) {
// If the canvas is tainted, we can't compute the pyramid.
return levels;
}
// We build smaller levels until either width or height becomes
// 1 pixel wide.
while (currentWidth >= 2 && currentHeight >= 2) {
currentWidth = Math.floor(currentWidth / 2);
currentHeight = Math.floor(currentHeight / 2);
var smallCanvas = document.createElement("canvas");
var smallContext = smallCanvas.getContext("2d");
smallCanvas.width = currentWidth;
smallCanvas.height = currentHeight;
smallContext.drawImage(bigCanvas, 0, 0, currentWidth, currentHeight);
levels.splice(0, 0, {
context2D: smallContext,
width: currentWidth,
height: currentHeight
});
bigCanvas = smallCanvas;
bigContext = smallContext;
}
return levels;
}
});
}(OpenSeadragon));

40
src/mousetracker.js
View File

@ -1367,6 +1367,14 @@
eventParams = getCaptureEventParams( tracker, $.MouseTracker.havePointerEvents ? 'pointerevent' : pointerType );
// We emulate mouse capture by hanging listeners on the document object.
// (Note we listen on the capture phase so the captured handlers will get called first)
if (isInIframe && canAccessEvents(window.top)) {
$.addEvent(
window.top,
eventParams.upName,
eventParams.upHandler,
true
);
}
$.addEvent(
$.MouseTracker.captureElement,
eventParams.upName,
@ -1402,6 +1410,14 @@
eventParams = getCaptureEventParams( tracker, $.MouseTracker.havePointerEvents ? 'pointerevent' : pointerType );
// We emulate mouse capture by hanging listeners on the document object.
// (Note we listen on the capture phase so the captured handlers will get called first)
if (isInIframe && canAccessEvents(window.top)) {
$.removeEvent(
window.top,
eventParams.upName,
eventParams.upHandler,
true
);
}
$.removeEvent(
$.MouseTracker.captureElement,
eventParams.moveName,
@ -3249,4 +3265,28 @@
}
}
// True if inside an iframe, otherwise false.
// @member {Boolean} isInIframe
// @private
// @inner
var isInIframe = (function() {
try {
return window.self !== window.top;
} catch (e) {
return true;
}
})();
// @function
// @private
// @inner
// @returns {Boolean} True if the target has access rights to events, otherwise false.
function canAccessEvents (target) {
try {
return target.addEventListener && target.removeEventListener;
} catch (e) {
return false;
}
}
} ( OpenSeadragon ) );

12
src/navigator.js
View File

@ -223,12 +223,6 @@ $.Navigator = function( options ){
}
});
this.addHandler("reset-size", function() {
if (_this.viewport) {
_this.viewport.goHome(true);
}
});
viewer.world.addHandler("item-index-change", function(event) {
var item = _this.world.getItemAt(event.previousIndex);
_this.world.setItemIndex(item, event.newIndex);
@ -307,8 +301,8 @@ $.extend( $.Navigator.prototype, $.EventSource.prototype, $.Viewer.prototype, /*
if( viewport && this.viewport ) {
bounds = viewport.getBounds( true );
topleft = this.viewport.pixelFromPoint( bounds.getTopLeft(), false );
bottomright = this.viewport.pixelFromPoint( bounds.getBottomRight(), false )
topleft = this.viewport.pixelFromPointNoRotate(bounds.getTopLeft(), false);
bottomright = this.viewport.pixelFromPointNoRotate(bounds.getBottomRight(), false)
.minus( this.totalBorderWidths );
//update style for navigator-box
@ -378,7 +372,7 @@ $.extend( $.Navigator.prototype, $.EventSource.prototype, $.Viewer.prototype, /*
*/
function onCanvasClick( event ) {
if ( event.quick && this.viewer.viewport ) {
this.viewer.viewport.panTo( this.viewport.pointFromPixel( event.position ).rotate( -this.viewer.viewport.degrees, this.viewer.viewport.getHomeBounds().getCenter() ) );
this.viewer.viewport.panTo(this.viewport.pointFromPixel(event.position));
this.viewer.viewport.applyConstraints();
}
}

23
src/openseadragon.js
View File

@ -254,6 +254,11 @@
* image though it is less effective visually if the HTML5 Canvas is not
* availble on the viewing device.
*
* @property {Number} [smoothTileEdgesMinZoom=1.1]
* A zoom percentage ( where 1 is 100% ) of the highest resolution level.
* When zoomed in beyond this value alternative compositing will be used to
* smooth out the edges between tiles. This will have a performance impact.
*
* @property {Boolean} [autoResize=true]
* Set to false to prevent polling for viewer size changes. Useful for providing custom resize behavior.
*
@ -849,6 +854,23 @@ if (typeof define === 'function' && define.amd) {
canvasElement.getContext( '2d' ) );
}());
/**
* Test whether the submitted canvas is tainted or not.
* @argument {Canvas} canvas The canvas to test.
* @returns {Boolean} True if the canvas is tainted.
*/
$.isCanvasTainted = function(canvas) {
var isTainted = false;
try {
// We test if the canvas is tainted by retrieving data from it.
// An exception will be raised if the canvas is tainted.
var data = canvas.getContext('2d').getImageData(0, 0, 1, 1);
} catch (e) {
isTainted = true;
}
return isTainted;
};
/**
* A ratio comparing the device screen's pixel density to the canvas's backing store pixel density. Defaults to 1 if canvas isn't supported by the browser.
* @member {Number} pixelDensityRatio
@ -1010,6 +1032,7 @@ if (typeof define === 'function' && define.amd) {
immediateRender: false,
minZoomImageRatio: 0.9, //-> closer to 0 allows zoom out to infinity
maxZoomPixelRatio: 1.1, //-> higher allows 'over zoom' into pixels
smoothTileEdgesMinZoom: 1.1, //-> higher than maxZoomPixelRatio disables it
pixelsPerWheelLine: 40,
autoResize: true,
preserveImageSizeOnResize: false, // requires autoResize=true

40
src/point.js
View File

@ -179,13 +179,45 @@ $.Point.prototype = /** @lends OpenSeadragon.Point.prototype */{
* From http://stackoverflow.com/questions/4465931/rotate-rectangle-around-a-point
* @function
* @param {Number} degress to rotate around the pivot.
* @param {OpenSeadragon.Point} pivot Point about which to rotate.
* @param {OpenSeadragon.Point} [pivot=(0,0)] Point around which to rotate.
* Defaults to the origin.
* @returns {OpenSeadragon.Point}. A new point representing the point rotated around the specified pivot
*/
rotate: function (degrees, pivot) {
var angle = degrees * Math.PI / 180.0,
x = Math.cos( angle ) * ( this.x - pivot.x ) - Math.sin( angle ) * ( this.y - pivot.y ) + pivot.x,
y = Math.sin( angle ) * ( this.x - pivot.x ) + Math.cos( angle ) * ( this.y - pivot.y ) + pivot.y;
pivot = pivot || new $.Point(0, 0);
var cos;
var sin;
// Avoid float computations when possible
if (degrees % 90 === 0) {
var d = degrees % 360;
if (d < 0) {
d += 360;
}
switch (d) {
case 0:
cos = 1;
sin = 0;
break;
case 90:
cos = 0;
sin = 1;
break;
case 180:
cos = -1;
sin = 0;
break;
case 270:
cos = 0;
sin = -1;
break;
}
} else {
var angle = degrees * Math.PI / 180.0;
cos = Math.cos(angle);
sin = Math.sin(angle);
}
var x = cos * (this.x - pivot.x) - sin * (this.y - pivot.y) + pivot.x;
var y = sin * (this.x - pivot.x) + cos * (this.y - pivot.y) + pivot.y;
return new $.Point(x, y);
},

231
src/rectangle.js
View File

@ -36,42 +36,78 @@
/**
* @class Rect
* @classdesc A Rectangle really represents a 2x2 matrix where each row represents a
* 2 dimensional vector component, the first is (x,y) and the second is
* (width, height). The latter component implies the equation of a simple
* plane.
* @classdesc A Rectangle is described by it top left coordinates (x, y), width,
* height and degrees of rotation around (x, y).
* Note that the coordinate system used is the one commonly used with images:
* x increases when going to the right
* y increases when going to the bottom
* degrees increases clockwise with 0 being the horizontal
*
* The constructor normalizes the rectangle to always have 0 <= degrees < 90
*
* @memberof OpenSeadragon
* @param {Number} x The vector component 'x'.
* @param {Number} y The vector component 'y'.
* @param {Number} width The vector component 'height'.
* @param {Number} height The vector component 'width'.
* @param {Number} [x=0] The vector component 'x'.
* @param {Number} [y=0] The vector component 'y'.
* @param {Number} [width=0] The vector component 'width'.
* @param {Number} [height=0] The vector component 'height'.
* @param {Number} [degrees=0] Rotation of the rectangle around (x,y) in degrees.
*/
$.Rect = function( x, y, width, height ) {
$.Rect = function(x, y, width, height, degrees) {
/**
* The vector component 'x'.
* @member {Number} x
* @memberof OpenSeadragon.Rect#
*/
this.x = typeof ( x ) == "number" ? x : 0;
this.x = typeof(x) === "number" ? x : 0;
/**
* The vector component 'y'.
* @member {Number} y
* @memberof OpenSeadragon.Rect#
*/
this.y = typeof ( y ) == "number" ? y : 0;
this.y = typeof(y) === "number" ? y : 0;
/**
* The vector component 'width'.
* @member {Number} width
* @memberof OpenSeadragon.Rect#
*/
this.width = typeof ( width ) == "number" ? width : 0;
this.width = typeof(width) === "number" ? width : 0;
/**
* The vector component 'height'.
* @member {Number} height
* @memberof OpenSeadragon.Rect#
*/
this.height = typeof ( height ) == "number" ? height : 0;
this.height = typeof(height) === "number" ? height : 0;
this.degrees = typeof(degrees) === "number" ? degrees : 0;
// Normalizes the rectangle.
this.degrees = this.degrees % 360;
if (this.degrees < 0) {
this.degrees += 360;
}
var newTopLeft, newWidth;
if (this.degrees >= 270) {
newTopLeft = this.getTopRight();
this.x = newTopLeft.x;
this.y = newTopLeft.y;
newWidth = this.height;
this.height = this.width;
this.width = newWidth;
this.degrees -= 270;
} else if (this.degrees >= 180) {
newTopLeft = this.getBottomRight();
this.x = newTopLeft.x;
this.y = newTopLeft.y;
this.degrees -= 180;
} else if (this.degrees >= 90) {
newTopLeft = this.getBottomLeft();
this.x = newTopLeft.x;
this.y = newTopLeft.y;
newWidth = this.height;
this.height = this.width;
this.width = newWidth;
this.degrees -= 90;
}
};
$.Rect.prototype = /** @lends OpenSeadragon.Rect.prototype */{
@ -80,7 +116,12 @@ $.Rect.prototype = /** @lends OpenSeadragon.Rect.prototype */{
* @returns {OpenSeadragon.Rect} a duplicate of this Rect
*/
clone: function() {
return new $.Rect(this.x, this.y, this.width, this.height);
return new $.Rect(
this.x,
this.y,
this.width,
this.height,
this.degrees);
},
/**
@ -114,10 +155,8 @@ $.Rect.prototype = /** @lends OpenSeadragon.Rect.prototype */{
* the rectangle.
*/
getBottomRight: function() {
return new $.Point(
this.x + this.width,
this.y + this.height
);
return new $.Point(this.x + this.width, this.y + this.height)
.rotate(this.degrees, this.getTopLeft());
},
/**
@ -128,10 +167,8 @@ $.Rect.prototype = /** @lends OpenSeadragon.Rect.prototype */{
* the rectangle.
*/
getTopRight: function() {
return new $.Point(
this.x + this.width,
this.y
);
return new $.Point(this.x + this.width, this.y)
.rotate(this.degrees, this.getTopLeft());
},
/**
@ -142,10 +179,8 @@ $.Rect.prototype = /** @lends OpenSeadragon.Rect.prototype */{
* the rectangle.
*/
getBottomLeft: function() {
return new $.Point(
this.x,
this.y + this.height
);
return new $.Point(this.x, this.y + this.height)
.rotate(this.degrees, this.getTopLeft());
},
/**
@ -158,7 +193,7 @@ $.Rect.prototype = /** @lends OpenSeadragon.Rect.prototype */{
return new $.Point(
this.x + this.width / 2.0,
this.y + this.height / 2.0
);
).rotate(this.degrees, this.getTopLeft());
},
/**
@ -179,46 +214,73 @@ $.Rect.prototype = /** @lends OpenSeadragon.Rect.prototype */{
*/
equals: function(other) {
return (other instanceof $.Rect) &&
( this.x === other.x ) &&
( this.y === other.y ) &&
( this.width === other.width ) &&
( this.height === other.height );
this.x === other.x &&
this.y === other.y &&
this.width === other.width &&
this.height === other.height &&
this.degrees === other.degrees;
},
/**
* Multiply all dimensions in this Rect by a factor and return a new Rect.
* Multiply all dimensions (except degrees) in this Rect by a factor and
* return a new Rect.
* @function
* @param {Number} factor The factor to multiply vector components.
* @returns {OpenSeadragon.Rect} A new rect representing the multiplication
* of the vector components by the factor
*/
times: function(factor) {
return new OpenSeadragon.Rect(
return new $.Rect(
this.x * factor,
this.y * factor,
this.width * factor,
this.height * factor
);
this.height * factor,
this.degrees);
},
/**
* Returns the smallest rectangle that will contain this and the given rectangle.
* Translate/move this Rect by a vector and return new Rect.
* @function
* @param {OpenSeadragon.Point} delta The translation vector.
* @returns {OpenSeadragon.Rect} A new rect with altered position
*/
translate: function(delta) {
return new $.Rect(
this.x + delta.x,
this.y + delta.y,
this.width,
this.height,
this.degrees);
},
/**
* Returns the smallest rectangle that will contain this and the given
* rectangle bounding boxes.
* @param {OpenSeadragon.Rect} rect
* @return {OpenSeadragon.Rect} The new rectangle.
*/
// ----------
union: function(rect) {
var left = Math.min(this.x, rect.x);
var top = Math.min(this.y, rect.y);
var right = Math.max(this.x + this.width, rect.x + rect.width);
var bottom = Math.max(this.y + this.height, rect.y + rect.height);
var thisBoundingBox = this.getBoundingBox();
var otherBoundingBox = rect.getBoundingBox();
return new OpenSeadragon.Rect(left, top, right - left, bottom - top);
var left = Math.min(thisBoundingBox.x, otherBoundingBox.x);
var top = Math.min(thisBoundingBox.y, otherBoundingBox.y);
var right = Math.max(
thisBoundingBox.x + thisBoundingBox.width,
otherBoundingBox.x + otherBoundingBox.width);
var bottom = Math.max(
thisBoundingBox.y + thisBoundingBox.height,
otherBoundingBox.y + otherBoundingBox.height);
return new $.Rect(
left,
top,
right - left,
bottom - top);
},
/**
* Rotates a rectangle around a point. Currently only 90, 180, and 270
* degrees are supported.
* Rotates a rectangle around a point.
* @function
* @param {Number} degrees The angle in degrees to rotate.
* @param {OpenSeadragon.Point} pivot The point about which to rotate.
@ -226,49 +288,55 @@ $.Rect.prototype = /** @lends OpenSeadragon.Rect.prototype */{
* @return {OpenSeadragon.Rect}
*/
rotate: function(degrees, pivot) {
// TODO support arbitrary rotation
var width = this.width,
height = this.height,
newTopLeft;
degrees = ( degrees + 360 ) % 360;
if (degrees % 90 !== 0) {
throw new Error('Currently only 0, 90, 180, and 270 degrees are supported.');
}
degrees = degrees % 360;
if (degrees === 0) {
return new $.Rect(
this.x,
this.y,
this.width,
this.height
);
return this.clone();
}
if (degrees < 0) {
degrees += 360;
}
pivot = pivot || this.getCenter();
var newTopLeft = this.getTopLeft().rotate(degrees, pivot);
var newTopRight = this.getTopRight().rotate(degrees, pivot);
switch ( degrees ) {
case 90:
newTopLeft = this.getBottomLeft();
width = this.height;
height = this.width;
break;
case 180:
newTopLeft = this.getBottomRight();
break;
case 270:
newTopLeft = this.getTopRight();
width = this.height;
height = this.width;
break;
default:
newTopLeft = this.getTopLeft();
break;
var diff = newTopRight.minus(newTopLeft);
var radians = Math.atan(diff.y / diff.x);
if (diff.x < 0) {
radians += Math.PI;
} else if (diff.y < 0) {
radians += 2 * Math.PI;
}
return new $.Rect(
newTopLeft.x,
newTopLeft.y,
this.width,
this.height,
radians / Math.PI * 180);
},
newTopLeft = newTopLeft.rotate(degrees, pivot);
return new $.Rect(newTopLeft.x, newTopLeft.y, width, height);
/**
* Retrieves the smallest horizontal (degrees=0) rectangle which contains
* this rectangle.
* @returns {OpenSeadrayon.Rect}
*/
getBoundingBox: function() {
if (this.degrees === 0) {
return this.clone();
}
var topLeft = this.getTopLeft();
var topRight = this.getTopRight();
var bottomLeft = this.getBottomLeft();
var bottomRight = this.getBottomRight();
var minX = Math.min(topLeft.x, topRight.x, bottomLeft.x, bottomRight.x);
var maxX = Math.max(topLeft.x, topRight.x, bottomLeft.x, bottomRight.x);
var minY = Math.min(topLeft.y, topRight.y, bottomLeft.y, bottomRight.y);
var maxY = Math.max(topLeft.y, topRight.y, bottomLeft.y, bottomRight.y);
return new $.Rect(
minX,
minY,
maxX - minX,
maxY - minY);
},
/**
@ -282,7 +350,8 @@ $.Rect.prototype = /** @lends OpenSeadragon.Rect.prototype */{
(Math.round(this.x * 100) / 100) + "," +
(Math.round(this.y * 100) / 100) + "," +
(Math.round(this.width * 100) / 100) + "x" +
(Math.round(this.height*100) / 100) +
(Math.round(this.height * 100) / 100) + "," +
(Math.round(this.degrees * 100) / 100) + "deg" +
"]";
}
};

2
src/referencestrip.js
View File

@ -436,7 +436,7 @@ function loadPanels( strip, viewerSize, scroll ) {
animationTime: 0
} );
miniViewer.displayRegion = $.makeNeutralElement( "textarea" );
miniViewer.displayRegion = $.makeNeutralElement( "div" );
miniViewer.displayRegion.id = element.id + '-displayregion';
miniViewer.displayRegion.className = 'displayregion';

2
src/spring.js
View File

@ -79,7 +79,7 @@ $.Spring = function( options ) {
$.console.assert(typeof options.springStiffness === "number" && options.springStiffness !== 0,
"[OpenSeadragon.Spring] options.springStiffness must be a non-zero number");
$.console.assert(typeof options.animationTime === "number" && options.springStiffness !== 0,
$.console.assert(typeof options.animationTime === "number" && options.animationTime !== 0,
"[OpenSeadragon.Spring] options.animationTime must be a non-zero number");
if (options.exponential) {

90
src/tile.js
View File

@ -45,8 +45,10 @@
* @param {Boolean} exists Is this tile a part of a sparse image? ( Also has
* this tile failed to load? )
* @param {String} url The URL of this tile's image.
* @param {CanvasRenderingContext2D} context2D The context2D of this tile if it
* is provided directly by the tile source.
*/
$.Tile = function(level, x, y, bounds, exists, url) {
$.Tile = function(level, x, y, bounds, exists, url, context2D) {
/**
* The zoom level this tile belongs to.
* @member {Number} level
@ -83,6 +85,12 @@ $.Tile = function(level, x, y, bounds, exists, url) {
* @memberof OpenSeadragon.Tile#
*/
this.url = url;
/**
* The context2D of this tile if it is provided directly by the tile source.
* @member {CanvasRenderingContext2D} context2D
* @memberOf OpenSeadragon.Tile#
*/
this.context2D = context2D;
/**
* Is this tile loaded?
* @member {Boolean} loaded
@ -240,21 +248,23 @@ $.Tile.prototype = /** @lends OpenSeadragon.Tile.prototype */{
* @param {Function} drawingHandler - Method for firing the drawing event.
* drawingHandler({context, tile, rendered})
* where <code>rendered</code> is the context with the pre-drawn image.
* @param {Number} [scale=1] - Apply a scale to position and size
* @param {OpenSeadragon.Point} [translate] - A translation vector
*/
drawCanvas: function( context, drawingHandler ) {
drawCanvas: function( context, drawingHandler, scale, translate ) {
var position = this.position,
size = this.size,
var position = this.position.times($.pixelDensityRatio),
size = this.size.times($.pixelDensityRatio),
rendered;
if (!this.cacheImageRecord) {
if (!this.context2D && !this.cacheImageRecord) {
$.console.warn(
'[Tile.drawCanvas] attempting to draw tile %s when it\'s not cached',
this.toString());
return;
}
rendered = this.cacheImageRecord.getRenderedContext();
rendered = this.context2D || this.cacheImageRecord.getRenderedContext();
if ( !this.loaded || !rendered ){
$.console.warn(
@ -273,14 +283,15 @@ $.Tile.prototype = /** @lends OpenSeadragon.Tile.prototype */{
//ie its done fading or fading is turned off, and if we are drawing
//an image with an alpha channel, then the only way
//to avoid seeing the tile underneath is to clear the rectangle
if( context.globalAlpha == 1 && this.url.match('.png') ){
if (context.globalAlpha === 1 &&
(this.context2D || this.url.match('.png'))) {
//clearing only the inside of the rectangle occupied
//by the png prevents edge flikering
context.clearRect(
(position.x * $.pixelDensityRatio)+1,
(position.y * $.pixelDensityRatio)+1,
(size.x * $.pixelDensityRatio)-2,
(size.y * $.pixelDensityRatio)-2
position.x + 1,
position.y + 1,
size.x - 2,
size.y - 2
);
}
@ -289,21 +300,70 @@ $.Tile.prototype = /** @lends OpenSeadragon.Tile.prototype */{
// changes as we are rendering the image
drawingHandler({context: context, tile: this, rendered: rendered});
if (typeof scale === 'number' && scale !== 1) {
// draw tile at a different scale
position = position.times(scale);
size = size.times(scale);
}
if (translate instanceof $.Point) {
// shift tile position slightly
position = position.plus(translate);
}
context.drawImage(
rendered.canvas,
0,
0,
rendered.canvas.width,
rendered.canvas.height,
position.x * $.pixelDensityRatio,
position.y * $.pixelDensityRatio,
size.x * $.pixelDensityRatio,
size.y * $.pixelDensityRatio
position.x,
position.y,
size.x,
size.y
);
context.restore();
},
/**
* Get the ratio between current and original size.
* @function
* @return {Float}
*/
getScaleForEdgeSmoothing: function() {
if (!this.cacheImageRecord) {
$.console.warn(
'[Tile.drawCanvas] attempting to get tile scale %s when tile\'s not cached',
this.toString());
return 1;
}
var rendered = this.cacheImageRecord.getRenderedContext();
return rendered.canvas.width / this.size.times($.pixelDensityRatio).x;
},
/**
* Get a translation vector that when applied to the tile position produces integer coordinates.
* Needed to avoid swimming and twitching.
* @function
* @param {Number} [scale=1] - Scale to be applied to position.
* @return {OpenSeadragon.Point}
*/
getTranslationForEdgeSmoothing: function(scale) {
// The translation vector must have positive values, otherwise the image goes a bit off
// the sketch canvas to the top and left and we must use negative coordinates to repaint it
// to the main canvas. And FF does not like it. It crashes the viewer.
return new $.Point(1, 1).minus(
this.position
.times($.pixelDensityRatio)
.times(scale || 1)
.apply(function(x) {
return x % 1;
})
);
},
/**
* Removes tile from its container.
* @function

107
src/tiledimage.js
View File

@ -64,6 +64,7 @@
* @param {Number} [options.blendTime] - See {@link OpenSeadragon.Options}.
* @param {Boolean} [options.alwaysBlend] - See {@link OpenSeadragon.Options}.
* @param {Number} [options.minPixelRatio] - See {@link OpenSeadragon.Options}.
* @param {Number} [options.smoothTileEdgesMinZoom] - See {@link OpenSeadragon.Options}.
* @param {Number} [options.opacity=1] - Opacity the tiled image should be drawn at.
* @param {String} [options.compositeOperation='source-over'] - How the image is composited onto other images; see compositeOperation in {@link OpenSeadragon.Options} for possible values.
* @param {Boolean} [options.debugMode] - See {@link OpenSeadragon.Options}.
@ -142,10 +143,11 @@ $.TiledImage = function( options ) {
blendTime: $.DEFAULT_SETTINGS.blendTime,
alwaysBlend: $.DEFAULT_SETTINGS.alwaysBlend,
minPixelRatio: $.DEFAULT_SETTINGS.minPixelRatio,
smoothTileEdgesMinZoom: $.DEFAULT_SETTINGS.smoothTileEdgesMinZoom,
debugMode: $.DEFAULT_SETTINGS.debugMode,
crossOriginPolicy: $.DEFAULT_SETTINGS.crossOriginPolicy,
placeholderFillStyle: $.DEFAULT_SETTINGS.placeholderFillStyle,
opacity: $.DEFAULT_SETTINGS.opacity,
opacity: $.DEFAULT_SETTINGS.opacity
compositeOperation: $.DEFAULT_SETTINGS.compositeOperation
}, options );
@ -356,23 +358,23 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
* @return {OpenSeadragon.Rect} A rect representing the coordinates in the viewport.
*/
imageToViewportRectangle: function( imageX, imageY, pixelWidth, pixelHeight, current ) {
if (imageX instanceof $.Rect) {
var rect = imageX;
if (rect instanceof $.Rect) {
//they passed a rect instead of individual components
current = imageY;
pixelWidth = imageX.width;
pixelHeight = imageX.height;
imageY = imageX.y;
imageX = imageX.x;
} else {
rect = new $.Rect(imageX, imageY, pixelWidth, pixelHeight);
}
var coordA = this.imageToViewportCoordinates(imageX, imageY, current);
var coordB = this._imageToViewportDelta(pixelWidth, pixelHeight, current);
var coordA = this.imageToViewportCoordinates(rect.getTopLeft(), current);
var coordB = this._imageToViewportDelta(rect.width, rect.height, current);
return new $.Rect(
coordA.x,
coordA.y,
coordB.x,
coordB.y
coordB.y,
rect.degrees
);
},
@ -388,23 +390,23 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
* @return {OpenSeadragon.Rect} A rect representing the coordinates in the image.
*/
viewportToImageRectangle: function( viewerX, viewerY, pointWidth, pointHeight, current ) {
var rect = viewerX;
if (viewerX instanceof $.Rect) {
//they passed a rect instead of individual components
current = viewerY;
pointWidth = viewerX.width;
pointHeight = viewerX.height;
viewerY = viewerX.y;
viewerX = viewerX.x;
} else {
rect = new $.Rect(viewerX, viewerY, pointWidth, pointHeight);
}
var coordA = this.viewportToImageCoordinates(viewerX, viewerY, current);
var coordB = this._viewportToImageDelta(pointWidth, pointHeight, current);
var coordA = this.viewportToImageCoordinates(rect.getTopLeft(), current);
var coordB = this._viewportToImageDelta(rect.width, rect.height, current);
return new $.Rect(
coordA.x,
coordA.y,
coordB.x,
coordB.y
coordB.y,
rect.degrees
);
},
@ -666,7 +668,7 @@ function updateViewport( tiledImage ) {
haveDrawn = false,
currentTime = $.now(),
viewportBounds = tiledImage.viewport.getBoundsWithMargins( true ),
zeroRatioC = tiledImage.viewport.deltaPixelsFromPoints(
zeroRatioC = tiledImage.viewport.deltaPixelsFromPointsNoRotate(
tiledImage.source.getPixelRatio( 0 ),
true
).x * tiledImage._scaleSpring.current.value,
@ -747,7 +749,7 @@ function updateViewport( tiledImage ) {
drawLevel = false;
//Avoid calculations for draw if we have already drawn this
renderPixelRatioC = tiledImage.viewport.deltaPixelsFromPoints(
renderPixelRatioC = tiledImage.viewport.deltaPixelsFromPointsNoRotate(
tiledImage.source.getPixelRatio( level ),
true
).x * tiledImage._scaleSpring.current.value;
@ -761,12 +763,12 @@ function updateViewport( tiledImage ) {
}
//Perform calculations for draw if we haven't drawn this
renderPixelRatioT = tiledImage.viewport.deltaPixelsFromPoints(
renderPixelRatioT = tiledImage.viewport.deltaPixelsFromPointsNoRotate(
tiledImage.source.getPixelRatio( level ),
false
).x * tiledImage._scaleSpring.current.value;
zeroRatioT = tiledImage.viewport.deltaPixelsFromPoints(
zeroRatioT = tiledImage.viewport.deltaPixelsFromPointsNoRotate(
tiledImage.source.getPixelRatio(
Math.max(
tiledImage.source.getClosestLevel( tiledImage.viewport.containerSize ) - 1,
@ -811,7 +813,7 @@ function updateViewport( tiledImage ) {
drawTiles( tiledImage, tiledImage.lastDrawn );
// Load the new 'best' tile
if ( best ) {
if (best && !best.context2D) {
loadTile( tiledImage, best, currentTime );
}
@ -956,12 +958,16 @@ function updateTile( tiledImage, drawLevel, haveDrawn, x, y, level, levelOpacity
);
if (!tile.loaded) {
if (tile.context2D) {
setTileLoaded(tiledImage, tile);
} else {
var imageRecord = tiledImage._tileCache.getImageRecord(tile.url);
if (imageRecord) {
var image = imageRecord.getImage();
setTileLoaded(tiledImage, tile, image);
}
}
}
if ( tile.loaded ) {
var needsDraw = blendTile(
@ -992,6 +998,7 @@ function getTile( x, y, level, tileSource, tilesMatrix, time, numTiles, worldWid
bounds,
exists,
url,
context2D,
tile;
if ( !tilesMatrix[ level ] ) {
@ -1007,6 +1014,8 @@ function getTile( x, y, level, tileSource, tilesMatrix, time, numTiles, worldWid
bounds = tileSource.getTileBounds( level, xMod, yMod );
exists = tileSource.tileExists( level, xMod, yMod );
url = tileSource.getTileUrl( level, xMod, yMod );
context2D = tileSource.getContext2D ?
tileSource.getContext2D(level, xMod, yMod) : undefined;
bounds.x += ( x - xMod ) / numTiles.x;
bounds.y += (worldHeight / worldWidth) * (( y - yMod ) / numTiles.y);
@ -1017,7 +1026,8 @@ function getTile( x, y, level, tileSource, tilesMatrix, time, numTiles, worldWid
y,
bounds,
exists,
url
url,
context2D
);
}
@ -1056,12 +1066,12 @@ function onTileLoad( tiledImage, tile, time, image, errorMsg ) {
* @property {string} message - The error message.
*/
tiledImage.viewer.raiseEvent("tile-load-failed", {tile: tile, tiledImage: tiledImage, time: time, message: errorMsg});
if( !tiledImage.debugMode ){
tile.loading = false;
tile.exists = false;
return;
}
} else if ( time < tiledImage.lastResetTime ) {
if ( time < tiledImage.lastResetTime ) {
$.console.log( "Ignoring tile %s loaded before reset: %s", tile, tile.url );
tile.loading = false;
return;
@ -1096,12 +1106,14 @@ function setTileLoaded(tiledImage, tile, image, cutoff) {
if (increment === 0) {
tile.loading = false;
tile.loaded = true;
if (!tile.context2D) {
tiledImage._tileCache.cacheTile({
image: image,
tile: tile,
cutoff: cutoff,
tiledImage: tiledImage
});
}
tiledImage._needsDraw = true;
}
}
@ -1144,10 +1156,10 @@ function positionTile( tile, overlap, viewport, viewportCenter, levelVisibility,
boundsSize.x *= tiledImage._scaleSpring.current.value;
boundsSize.y *= tiledImage._scaleSpring.current.value;
var positionC = viewport.pixelFromPoint( boundsTL, true ),
positionT = viewport.pixelFromPoint( boundsTL, false ),
sizeC = viewport.deltaPixelsFromPoints( boundsSize, true ),
sizeT = viewport.deltaPixelsFromPoints( boundsSize, false ),
var positionC = viewport.pixelFromPointNoRotate(boundsTL, true),
positionT = viewport.pixelFromPointNoRotate(boundsTL, false),
sizeC = viewport.deltaPixelsFromPointsNoRotate(boundsSize, true),
sizeT = viewport.deltaPixelsFromPointsNoRotate(boundsSize, false),
tileCenter = positionT.plus( sizeT.divide( 2 ) ),
tileDistance = viewportCenter.distanceTo( tileCenter );
@ -1311,24 +1323,47 @@ function compareTiles( previousBest, tile ) {
function drawTiles( tiledImage, lastDrawn ) {
var i,
tile;
tile = lastDrawn[0];
if ( tiledImage.opacity <= 0 ) {
drawDebugInfo( tiledImage, lastDrawn );
return;
}
var useSketch = tiledImage.opacity < 1 || tiledImage.compositeOperation !== 'source-over';
var sketchScale;
var sketchTranslate;
var zoom = tiledImage.viewport.getZoom(true);
var imageZoom = tiledImage.viewportToImageZoom(zoom);
if ( imageZoom > tiledImage.smoothTileEdgesMinZoom && tile) {
// When zoomed in a lot (>100%) the tile edges are visible.
// So we have to composite them at ~100% and scale them up together.
useSketch = true;
sketchScale = tile.getScaleForEdgeSmoothing();
sketchTranslate = tile.getTranslationForEdgeSmoothing(sketchScale);
}
>>>>>>> a0a44dbeb5e3030e0acecf108efc19dbd53aaec2
if ( useSketch ) {
tiledImage._drawer._clear( true );
}
if (tiledImage.viewport.degrees !== 0) {
tiledImage._drawer._offsetForRotation(tiledImage.viewport.degrees, useSketch);
}
var usedClip = false;
if ( tiledImage._clip ) {
tiledImage._drawer.saveContext(useSketch);
var box = tiledImage.imageToViewportRectangle(tiledImage._clip, true);
var clipRect = tiledImage._drawer.viewportToDrawerRectangle(box);
if (sketchScale) {
clipRect = clipRect.times(sketchScale);
}
if (sketchTranslate) {
clipRect = clipRect.translate(sketchTranslate);
}
tiledImage._drawer.setClip(clipRect, useSketch);
usedClip = true;
@ -1336,6 +1371,12 @@ function drawTiles( tiledImage, lastDrawn ) {
if ( tiledImage.placeholderFillStyle && tiledImage._hasOpaqueTile === false ) {
var placeholderRect = tiledImage._drawer.viewportToDrawerRectangle(tiledImage.getBounds(true));
if (sketchScale) {
placeholderRect = placeholderRect.times(sketchScale);
}
if (sketchTranslate) {
placeholderRect = placeholderRect.translate(sketchTranslate);
}
var fillStyle = null;
if ( typeof tiledImage.placeholderFillStyle === "function" ) {
@ -1350,7 +1391,7 @@ function drawTiles( tiledImage, lastDrawn ) {
for ( i = lastDrawn.length - 1; i >= 0; i-- ) {
tile = lastDrawn[ i ];
tiledImage._drawer.drawTile( tile, tiledImage._drawingHandler, useSketch );
tiledImage._drawer.drawTile( tile, tiledImage._drawingHandler, useSketch, sketchScale, sketchTranslate );
tile.beingDrawn = true;
if( tiledImage.viewer ){
@ -1376,8 +1417,12 @@ function drawTiles( tiledImage, lastDrawn ) {
tiledImage._drawer.restoreContext( useSketch );
}
if (tiledImage.viewport.degrees !== 0) {
tiledImage._drawer._restoreRotationChanges(useSketch);
}
if ( useSketch ) {
tiledImage._drawer.blendSketch( tiledImage.opacity, tiledImage.compositeOperation );
tiledImage._drawer.blendSketch( tiledImage.opacity, sketchScale, sketchTranslate, tiledImage.compositeOperation );
}
drawDebugInfo( tiledImage, lastDrawn );
}

48
src/viewer.js
View File

@ -234,7 +234,7 @@ $.Viewer = function( options ) {
style.left = "0px";
}(this.canvas.style));
$.setElementTouchActionNone( this.canvas );
this.canvas.tabIndex = options.tabIndex || 0;
this.canvas.tabIndex = (options.tabIndex === undefined ? 0 : options.tabIndex);
//the container is created through applying the ControlDock constructor above
this.container.className = "openseadragon-container";
@ -1292,19 +1292,21 @@ $.extend( $.Viewer.prototype, $.EventSource.prototype, $.ControlDock.prototype,
}
}
this._loadQueue.push(myQueueItem);
getTileSourceImplementation( this, options.tileSource, function( tileSource ) {
if ( tileSource instanceof Array ) {
if ($.isArray(options.tileSource)) {
setTimeout(function() {
raiseAddItemFailed({
message: "[Viewer.addTiledImage] Sequences can not be added; add them one at a time instead.",
source: tileSource,
source: options.tileSource,
options: options
});
});
return;
}
this._loadQueue.push(myQueueItem);
getTileSourceImplementation( this, options.tileSource, function( tileSource ) {
myQueueItem.tileSource = tileSource;
// add everybody at the front of the queue that's ready to go
@ -1349,6 +1351,7 @@ $.extend( $.Viewer.prototype, $.EventSource.prototype, $.ControlDock.prototype,
blendTime: _this.blendTime,
alwaysBlend: _this.alwaysBlend,
minPixelRatio: _this.minPixelRatio,
smoothTileEdgesMinZoom: _this.smoothTileEdgesMinZoom,
crossOriginPolicy: _this.crossOriginPolicy,
debugMode: _this.debugMode
});
@ -2047,12 +2050,30 @@ function getTileSourceImplementation( viewer, tileSource, successCallback,
}
}
function waitUntilReady(tileSource, originalTileSource) {
if (tileSource.ready) {
successCallback(tileSource);
} else {
tileSource.addHandler('ready', function () {
successCallback(tileSource);
});
tileSource.addHandler('open-failed', function (event) {
failCallback({
message: event.message,
source: originalTileSource
});
});
}
}
setTimeout( function() {
if ( $.type( tileSource ) == 'string' ) {
//If its still a string it means it must be a url at this point
tileSource = new $.TileSource({
url: tileSource,
crossOriginPolicy: viewer.crossOriginPolicy,
ajaxWithCredentials: viewer.ajaxWithCredentials,
useCanvas: viewer.useCanvas,
success: function( event ) {
successCallback( event.tileSource );
}
@ -2062,9 +2083,15 @@ function getTileSourceImplementation( viewer, tileSource, successCallback,
} );
} else if ($.isPlainObject(tileSource) || tileSource.nodeType) {
if (!tileSource.crossOriginPolicy && viewer.crossOriginPolicy) {
tileSource.crossOriginPolicy = viewer.crossOriginPolicy;
}
if (tileSource.ajaxWithCredentials === undefined) {
tileSource.ajaxWithCredentials = viewer.ajaxWithCredentials;
}
if (tileSource.useCanvas === undefined) {
tileSource.useCanvas = viewer.useCanvas;
}
if ( $.isFunction( tileSource.getTileUrl ) ) {
//Custom tile source
@ -2082,14 +2109,13 @@ function getTileSourceImplementation( viewer, tileSource, successCallback,
return;
}
var options = $TileSource.prototype.configure.apply( _this, [ tileSource ] );
var readySource = new $TileSource( options );
successCallback( readySource );
waitUntilReady(new $TileSource(options), tileSource);
}
} else {
//can assume it's already a tile source implementation
successCallback( tileSource );
waitUntilReady(tileSource, tileSource);
}
}, 1 );
});
}
function getOverlayObject( viewer, overlay ) {

177
src/viewport.js
View File

@ -175,7 +175,7 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
$.console.assert(bounds.width > 0, "[Viewport.setHomeBounds] bounds.width must be greater than 0");
$.console.assert(bounds.height > 0, "[Viewport.setHomeBounds] bounds.height must be greater than 0");
this.homeBounds = bounds.clone();
this.homeBounds = bounds.clone().rotate(this.degrees).getBoundingBox();
this.contentSize = this.homeBounds.getSize().times(contentFactor);
this.contentAspectX = this.contentSize.x / this.contentSize.y;
this.contentAspectY = this.contentSize.y / this.contentSize.x;
@ -704,7 +704,6 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
this.centerSpringX.target.value,
this.centerSpringY.target.value
);
delta = delta.rotate( -this.degrees, new $.Point( 0, 0 ) );
return this.panTo( center.plus( delta ), immediately );
},
@ -751,13 +750,8 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
* @fires OpenSeadragon.Viewer.event:zoom
*/
zoomBy: function(factor, refPoint, immediately) {
if( refPoint instanceof $.Point && !isNaN( refPoint.x ) && !isNaN( refPoint.y ) ) {
refPoint = refPoint.rotate(
-this.degrees,
new $.Point( this.centerSpringX.target.value, this.centerSpringY.target.value )
);
}
return this.zoomTo( this.zoomSpring.target.value * factor, refPoint, immediately );
return this.zoomTo(
this.zoomSpring.target.value * factor, refPoint, immediately);
},
/**
@ -808,12 +802,18 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
* @return {OpenSeadragon.Viewport} Chainable.
*/
setRotation: function(degrees) {
if( !( this.viewer && this.viewer.drawer.canRotate() ) ) {
if (!this.viewer || !this.viewer.drawer.canRotate()) {
return this;
}
degrees = ( degrees + 360 ) % 360;
degrees = degrees % 360;
if (degrees < 0) {
degrees += 360;
}
this.degrees = degrees;
this.setHomeBounds(
this.viewer.world.getHomeBounds(),
this.viewer.world.getContentFactor());
this.viewer.forceRedraw();
/**
@ -826,10 +826,7 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
* @property {Number} degrees - The number of degrees the rotation was set to.
* @property {?Object} userData - Arbitrary subscriber-defined object.
*/
if (this.viewer !== null)
{
this.viewer.raiseEvent('rotate', {"degrees": degrees});
}
return this;
},
@ -933,40 +930,89 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
return changed;
},
/**
* Convert a delta (translation vector) from pixels coordinates to viewport coordinates
* @function
* @param {Boolean} current - Pass true for the current location; defaults to false (target location).
* Convert a delta (translation vector) from viewport coordinates to pixels
* coordinates. This method does not take rotation into account.
* Consider using deltaPixelsFromPoints if you need to account for rotation.
* @param {OpenSeadragon.Point} deltaPoints - The translation vector to convert.
* @param {Boolean} [current=false] - Pass true for the current location;
* defaults to false (target location).
* @returns {OpenSeadragon.Point}
*/
deltaPixelsFromPoints: function( deltaPoints, current ) {
deltaPixelsFromPointsNoRotate: function(deltaPoints, current) {
return deltaPoints.times(
this._containerInnerSize.x * this.getZoom(current)
);
},
/**
* Convert a delta (translation vector) from viewport coordinates to pixels coordinates.
* @function
* @param {Boolean} current - Pass true for the current location; defaults to false (target location).
* Convert a delta (translation vector) from viewport coordinates to pixels
* coordinates.
* @param {OpenSeadragon.Point} deltaPoints - The translation vector to convert.
* @param {Boolean} [current=false] - Pass true for the current location;
* defaults to false (target location).
* @returns {OpenSeadragon.Point}
*/
deltaPointsFromPixels: function( deltaPixels, current ) {
deltaPixelsFromPoints: function(deltaPoints, current) {
return this.deltaPixelsFromPointsNoRotate(
deltaPoints.rotate(this.getRotation()),
current);
},
/**
* Convert a delta (translation vector) from pixels coordinates to viewport
* coordinates. This method does not take rotation into account.
* Consider using deltaPointsFromPixels if you need to account for rotation.
* @param {OpenSeadragon.Point} deltaPixels - The translation vector to convert.
* @param {Boolean} [current=false] - Pass true for the current location;
* defaults to false (target location).
* @returns {OpenSeadragon.Point}
*/
deltaPointsFromPixelsNoRotate: function(deltaPixels, current) {
return deltaPixels.divide(
this._containerInnerSize.x * this.getZoom(current)
);
},
/**
* Convert image pixel coordinates to viewport coordinates.
* @function
* @param {Boolean} current - Pass true for the current location; defaults to false (target location).
* Convert a delta (translation vector) from pixels coordinates to viewport
* coordinates.
* @param {OpenSeadragon.Point} deltaPixels - The translation vector to convert.
* @param {Boolean} [current=false] - Pass true for the current location;
* defaults to false (target location).
* @returns {OpenSeadragon.Point}
*/
deltaPointsFromPixels: function(deltaPixels, current) {
return this.deltaPointsFromPixelsNoRotate(deltaPixels, current)
.rotate(-this.getRotation());
},
/**
* Convert viewport coordinates to pixels coordinates.
* This method does not take rotation into account.
* Consider using pixelFromPoint if you need to account for rotation.
* @param {OpenSeadragon.Point} point the viewport coordinates
* @param {Boolean} [current=false] - Pass true for the current location;
* defaults to false (target location).
* @returns {OpenSeadragon.Point}
*/
pixelFromPointNoRotate: function(point, current) {
return this._pixelFromPointNoRotate(point, this.getBounds(current));
},
/**
* Convert viewport coordinates to pixel coordinates.
* @param {OpenSeadragon.Point} point the viewport coordinates
* @param {Boolean} [current=false] - Pass true for the current location;
* defaults to false (target location).
* @returns {OpenSeadragon.Point}
*/
pixelFromPoint: function(point, current) {
return this._pixelFromPoint(point, this.getBounds(current));
},
// private
_pixelFromPoint: function( point, bounds ) {
_pixelFromPointNoRotate: function(point, bounds) {
return point.minus(
bounds.getTopLeft()
).times(
@ -976,12 +1022,23 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
);
},
// private
_pixelFromPoint: function(point, bounds) {
return this._pixelFromPointNoRotate(
point.rotate(this.getRotation(), this.getCenter(true)),
bounds);
},
/**
* Convert viewport coordinates to image pixel coordinates.
* @function
* @param {Boolean} current - Pass true for the current location; defaults to false (target location).
* Convert pixel coordinates to viewport coordinates.
* This method does not take rotation into account.
* Consider using pointFromPixel if you need to account for rotation.
* @param {OpenSeadragon.Point} pixel Pixel coordinates
* @param {Boolean} [current=false] - Pass true for the current location;
* defaults to false (target location).
* @returns {OpenSeadragon.Point}
*/
pointFromPixel: function( pixel, current ) {
pointFromPixelNoRotate: function(pixel, current) {
var bounds = this.getBounds( current );
return pixel.minus(
new $.Point(this._margins.left, this._margins.top)
@ -992,6 +1049,20 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
);
},
/**
* Convert pixel coordinates to viewport coordinates.
* @param {OpenSeadragon.Point} pixel Pixel coordinates
* @param {Boolean} [current=false] - Pass true for the current location;
* defaults to false (target location).
* @returns {OpenSeadragon.Point}
*/
pointFromPixel: function(pixel, current) {
return this.pointFromPixelNoRotate(pixel, current).rotate(
-this.getRotation(),
this.getCenter(true)
);
},
// private
_viewportToImageDelta: function( viewerX, viewerY ) {
var scale = this.homeBounds.width;
@ -1073,28 +1144,20 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
* @param {Number} pixelHeight the height in pixel of the rectangle.
*/
imageToViewportRectangle: function(imageX, imageY, pixelWidth, pixelHeight) {
var coordA,
coordB,
rect;
if( arguments.length == 1 ) {
//they passed a rectangle instead of individual components
rect = imageX;
return this.imageToViewportRectangle(
rect.x, rect.y, rect.width, rect.height
);
var rect = imageX;
if (!(rect instanceof $.Rect)) {
//they passed individual components instead of a rectangle
rect = new $.Rect(imageX, imageY, pixelWidth, pixelHeight);
}
coordA = this.imageToViewportCoordinates(
imageX, imageY
);
coordB = this._imageToViewportDelta(
pixelWidth, pixelHeight
);
var coordA = this.imageToViewportCoordinates(rect.x, rect.y);
var coordB = this._imageToViewportDelta(rect.width, rect.height);
return new $.Rect(
coordA.x,
coordA.y,
coordB.x,
coordB.y
coordB.y,
rect.degrees
);
},
@ -1114,24 +1177,20 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
* @param {Number} pointHeight the height of the rectangle in viewport coordinate system.
*/
viewportToImageRectangle: function(viewerX, viewerY, pointWidth, pointHeight) {
var coordA,
coordB,
rect;
if ( arguments.length == 1 ) {
//they passed a rectangle instead of individual components
rect = viewerX;
return this.viewportToImageRectangle(
rect.x, rect.y, rect.width, rect.height
);
var rect = viewerX;
if (!(rect instanceof $.Rect)) {
//they passed individual components instead of a rectangle
rect = new $.Rect(viewerX, viewerY, pointWidth, pointHeight);
}
coordA = this.viewportToImageCoordinates( viewerX, viewerY );
coordB = this._viewportToImageDelta(pointWidth, pointHeight);
var coordA = this.viewportToImageCoordinates(rect.x, rect.y);
var coordB = this._viewportToImageDelta(rect.width, rect.height);
return new $.Rect(
coordA.x,
coordA.y,
coordB.x,
coordB.y
coordB.y,
rect.degrees
);
},

2
test/coverage.html
View File

@ -32,6 +32,7 @@
<script src="/src/osmtilesource.js"></script>
<script src="/src/tmstilesource.js"></script>
<script src="/src/legacytilesource.js"></script>
<script src="/src/imagetilesource.js"></script>
<script src="/src/tilesourcecollection.js"></script>
<script src="/src/button.js"></script>
<script src="/src/buttongroup.js"></script>
@ -74,6 +75,7 @@
<script src="/test/modules/tilesource.js"></script>
<script src="/test/modules/tilesourcecollection.js"></script>
<script src="/test/modules/spring.js"></script>
<script src="/test/modules/rectangle.js"></script>
<!-- The navigator tests are the slowest (for now; hopefully they can be sped up)
so we put them last. -->
<script src="/test/modules/navigator.js"></script>

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15
test/data/iiif_2_0_sizes/info.json Normal file
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@ -0,0 +1,15 @@
{
"@context": "http://iiif.io/api/image/2/context.json",
"@id": "http://localhost:8000/test/data/iiif_2_0_sizes",
"protocol": "http://iiif.io/api/image",
"width": 6976,
"height": 5074,
"profile": ["http://iiif.io/api/image/2/level0.json"],
"sizes" : [
{"width" : 400, "height" : 291},
{"width" : 800, "height" : 582},
{"width" : 1600, "height" : 1164},
{"width" : 3200, "height": 2328},
{"width" : 6976, "height": 5074}
]
}

87
test/demo/coordinates.html
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@ -24,38 +24,55 @@
<th></th>
<th>Window (pixel)</th>
<th>Container (pixel)</th>
<th>Image 1 - top left (pixel)</th>
<th>Image 2 - bottom right (pixel)</th>
<th>Viewport (point)</th>
<th>Big Image (pixel)</th>
<th>Small Image (pixel)</th>
</tr>
<tr>
<th>Cursor position</th>
<td id="windowPosition"></td>
<td id="containerPosition"></td>
<td id="image1Position"></td>
<td id="image2Position"></td>
<td id="viewportPosition"></td>
<td id="cursorWindowPosition"></td>
<td id="cursorContainerPosition"></td>
<td id="cursorViewportPosition"></td>
<td id="cursorImage1Position"></td>
<td id="cursorImage2Position"></td>
</tr>
<tr>
<th>Big Image top left position</th>
<td id="image1WindowPosition"></td>
<td id="image1ContainerPosition"></td>
<td id="image1ViewportPosition"></td>
<td id="image1Image1Position"></td>
<td id="image1Image2Position"></td>
</tr>
<tr>
<th>Small Image top left position</th>
<td id="image2WindowPosition"></td>
<td id="image2ContainerPosition"></td>
<td id="image2ViewportPosition"></td>
<td id="image2Image1Position"></td>
<td id="image2Image2Position"></td>
</tr>
<tr>
<th>Zoom</th>
<td>-</td>
<td>-</td>
<td id="viewportZoom"></td>
<td id="image1Zoom"></td>
<td id="image2Zoom"></td>
<td id="viewportZoom"></td>
</tr>
</table>
</div>
<button onclick="rotate();">Rotate</button>
<script type="text/javascript">
var viewer = OpenSeadragon({
// debugMode: true,
debugMode: true,
id: "contentDiv",
prefixUrl: "../../build/openseadragon/images/",
tileSources: [{
tileSource: "../data/testpattern.dzi"
},
{
tileSource: "../data/testpattern.dzi",
clip: new OpenSeadragon.Rect(0, 0, 500, 1000)
}, {
tileSource: "../data/testpattern.dzi",
x: 1,
y: 1,
@ -64,28 +81,29 @@
],
showNavigator: true
});
viewer.addHandler("open", onAnimation);
function pointToString(point) {
return point.x.toPrecision(4) + "," + point.y.toPrecision(4);
}
var onMouseTrackerMove = function (event) {
function onMouseTrackerMove(event) {
var viewerX = event.position.x;
var viewerY = event.position.y;
var windowPoint = new OpenSeadragon.Point(viewerX, viewerY);
$("#windowPosition").text(pointToString(windowPoint));
$("#cursorWindowPosition").text(pointToString(windowPoint));
var containerPoint = windowPoint.minus(
OpenSeadragon.getElementPosition(viewer.element));
$("#containerPosition").text(pointToString(containerPoint));
$("#cursorContainerPosition").text(pointToString(containerPoint));
var image1 = viewer.world.getItemAt(0);
var imagePoint = image1.windowToImageCoordinates(windowPoint);
$("#image1Position").text(pointToString(imagePoint));
$("#cursorImage1Position").text(pointToString(imagePoint));
var image2 = viewer.world.getItemAt(1);
var imagePoint = image2.windowToImageCoordinates(windowPoint);
$("#image2Position").text(pointToString(imagePoint));
$("#cursorImage2Position").text(pointToString(imagePoint));
var viewportPoint = viewer.viewport.windowToViewportCoordinates(windowPoint);
$("#viewportPosition").text(pointToString(viewportPoint));
};
$("#cursorViewportPosition").text(pointToString(viewportPoint));
}
mouseTracker = new OpenSeadragon.MouseTracker({
element: document,
moveHandler: onMouseTrackerMove
@ -100,9 +118,40 @@
var image2 = viewer.world.getItemAt(1);
var image2Zoom = image2.viewportToImageZoom(viewportZoom);
$("#image2Zoom").text(image2Zoom.toFixed(3));
var origin = new OpenSeadragon.Point(0, 0);
var image1WindowPoint = image1.imageToWindowCoordinates(origin);
$("#image1WindowPosition").text(pointToString(image1WindowPoint));
var image1ContainerPoint = image1.imageToViewerElementCoordinates(origin);
$("#image1ContainerPosition").text(pointToString(image1ContainerPoint));
var image1Image1Position = image1.viewportToImageCoordinates(
image1.getBounds(true).getTopLeft());
$("#image1Image1Position").text(pointToString(image1Image1Position));
var image1Image2Position = image1.viewportToImageCoordinates(
image2.getBounds(true).getTopLeft());
$("#image1Image2Position").text(pointToString(image1Image2Position));
var image1ViewportPoint = image1.imageToViewportCoordinates(origin);
$("#image1ViewportPosition").text(pointToString(image1ViewportPoint));
var image2WindowPoint = image2.imageToWindowCoordinates(origin);
$("#image2WindowPosition").text(pointToString(image2WindowPoint));
var image2ContainerPoint = image2.imageToViewerElementCoordinates(origin);
$("#image2ContainerPosition").text(pointToString(image2ContainerPoint));
var image2Image1Position = image2.viewportToImageCoordinates(
image1.getBounds(true).getTopLeft());
$("#image2Image1Position").text(pointToString(image2Image1Position));
var image2Image2Position = image2.viewportToImageCoordinates(
image2.getBounds(true).getTopLeft());
$("#image2Image2Position").text(pointToString(image2Image2Position));
var image2ViewportPoint = image2.imageToViewportCoordinates(origin);
$("#image2ViewportPosition").text(pointToString(image2ViewportPoint));
}
viewer.addHandler("animation", onAnimation);
function rotate() {
viewer.viewport.setRotation(viewer.viewport.getRotation() + 45);
onAnimation();
}
</script>
</body>
</html>

51
test/demo/iiif-sizes.html Normal file
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@ -0,0 +1,51 @@
<!DOCTYPE html>
<html>
<head>
<title>OpenSeadragon Demo - IIIF emulation of legacy image pyramid</title>
<script type="text/javascript" src='../../build/openseadragon/openseadragon.js'></script>
<script type="text/javascript" src='../lib/jquery-1.9.1.min.js'></script>
<style type="text/css">
.openseadragon1 {
width: 800px;
height: 600px;
}
</style>
</head>
<body>
<div>
<p>Default OpenSeadragon viewer from IIIF Source</p>
<p>This allows IIIF even if you only have a handful of static image sizes.</p>
</div>
<!--
Notes:
legacy iiif
supports
configure
getTileWidth
getTileHeight
getLevelScale
getNumTiles
getTileAtPoint
getTileUrl getTileUrl
-->
<div id="contentDiv" class="openseadragon1"></div>
<script type="text/javascript">
var viewer = OpenSeadragon({
// debugMode: true,
id: "contentDiv",
prefixUrl: "../../build/openseadragon/images/",
tileSources: "../data/iiif_2_0_sizes/info.json",
showNavigator:true
});
</script>
</body>
</html>

34
test/demo/iiif.html Normal file
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@ -0,0 +1,34 @@
<!DOCTYPE html>
<html>
<head>
<title>OpenSeadragon Demo - IIIF Tiled</title>
<script type="text/javascript" src='../../build/openseadragon/openseadragon.js'></script>
<script type="text/javascript" src='../lib/jquery-1.9.1.min.js'></script>
<style type="text/css">
.openseadragon1 {
width: 800px;
height: 600px;
}
</style>
</head>
<body>
<div>
<p>Default OpenSeadragon viewer from IIIF Tile Source.</p>
<p>This depends on a remote server providing a IIIF Image API endpoint.</p>
</div>
<div id="contentDiv" class="openseadragon1"></div>
<script type="text/javascript">
var viewer = OpenSeadragon({
// debugMode: true,
id: "contentDiv",
prefixUrl: "../../build/openseadragon/images/",
tileSources: "http://wellcomelibrary.org/iiif-img/b11768265-0/a6801943-b8b4-4674-908c-7d5b27e70569/info.json",
showNavigator:true
});
</script>
</body>
</html>

56
test/demo/legacy.html Normal file
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@ -0,0 +1,56 @@
<!DOCTYPE html>
<html>
<head>
<title>OpenSeadragon Demo - Legacy image pyramid</title>
<script type="text/javascript" src='../../build/openseadragon/openseadragon.js'></script>
<script type="text/javascript" src='../lib/jquery-1.9.1.min.js'></script>
<style type="text/css">
.openseadragon1 {
width: 800px;
height: 600px;
}
</style>
</head>
<body>
<div>
Use an array of full images at different sizes.
</div>
<div id="contentDiv" class="openseadragon1"></div>
<script type="text/javascript">
var viewer = OpenSeadragon({
// debugMode: true,
id: "contentDiv",
prefixUrl: "../../build/openseadragon/images/",
tileSources: {
type: 'legacy-image-pyramid',
levels:[{
url: '/test/data/iiif_2_0_sizes/full/400,/0/default.jpg',
height: 291,
width: 400
},{
url: '/test/data/iiif_2_0_sizes/full/800,/0/default.jpg',
height: 582,
width: 800
},{
url: '/test/data/iiif_2_0_sizes/full/1600,/0/default.jpg',
height: 1164,
width: 1600
},{
url: '/test/data/iiif_2_0_sizes/full/3200,/0/default.jpg',
height: 2328,
width: 3200
},{
url: '/test/data/iiif_2_0_sizes/full/6976,/0/default.jpg',
height: 5074,
width: 6976
}]
},
showNavigator:true
});
</script>
</body>
</html>

3
test/demo/overlay.html
View File

@ -15,13 +15,14 @@
<div id="contentDiv" class="openseadragon1"></div>
<div id="annotation-div">
<input type="button" value="Hide Overlay" id="hideOverlay">
</div>
<script type="text/javascript">
var viewer = OpenSeadragon({
id: "contentDiv",
prefixUrl: "../../build/openseadragon/images/",
tileSources: "../data/testpattern.dzi",
tileSources: "../data/testpattern.dzi"
});
viewer.addHandler("open", function(event) {

18
test/helpers/test.js
View File

@ -68,6 +68,24 @@
ok( Util.equalsWithVariance( value1, value2, variance ), message + " Expected:" + value1 + " Found: " + value2 + " Variance: " + variance );
},
// ----------
assertPointsEquals: function (pointA, pointB, precision, message) {
Util.assessNumericValue(pointA.x, pointB.x, precision, message + " x: ");
Util.assessNumericValue(pointA.y, pointB.y, precision, message + " y: ");
},
// ----------
assertRectangleEquals: function (rectA, rectB, precision, message) {
Util.assessNumericValue(rectA.x, rectB.x, precision, message + " x: ");
Util.assessNumericValue(rectA.y, rectB.y, precision, message + " y: ");
Util.assessNumericValue(rectA.width, rectB.width, precision,
message + " width: ");
Util.assessNumericValue(rectA.height, rectB.height, precision,
message + " height: ");
Util.assessNumericValue(rectA.degrees, rectB.degrees, precision,
message + " degrees: ");
},
// ----------
timeWatcher: function ( time ) {
time = time || 2000;

21
test/modules/basic.js
View File

@ -314,26 +314,15 @@
var canvas = document.createElement("canvas");
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
callback(!isCanvasTainted(ctx));
callback(!OpenSeadragon.isCanvasTainted(canvas));
};
img.src = corsImg;
}
function isCanvasTainted(context) {
var isTainted = false;
try {
// We test if the canvas is tainted by retrieving data from it.
// An exception will be raised if the canvas is tainted.
var url = context.getImageData(0, 0, 1, 1);
} catch (e) {
isTainted = true;
}
return isTainted;
}
asyncTest( 'CrossOriginPolicyMissing', function () {
viewer.crossOriginPolicy = false;
viewer.smoothTileEdgesMinZoom = Infinity;
viewer.open( {
type: 'legacy-image-pyramid',
levels: [ {
@ -343,7 +332,8 @@
} ]
} );
viewer.addHandler('tile-drawn', function() {
ok(isCanvasTainted(viewer.drawer.context), "Canvas should be tainted.");
ok(OpenSeadragon.isCanvasTainted(viewer.drawer.context.canvas),
"Canvas should be tainted.");
start();
});
@ -366,7 +356,8 @@
} ]
} );
viewer.addHandler('tile-drawn', function() {
ok(!isCanvasTainted(viewer.drawer.context), "Canvas should not be tainted.");
ok(!OpenSeadragon.isCanvasTainted(viewer.drawer.context.canvas),
"Canvas should not be tainted.");
start();
});
}

46
test/modules/formats.js
View File

@ -114,6 +114,11 @@
testOpenUrl('iiif_2_0_tiled/info.json');
});
// ----------
asyncTest('IIIF 2.0 JSON, sizes array only', function() {
testOpenUrl('iiif_2_0_sizes/info.json');
});
// ----------
asyncTest('IIIF 2.0 JSON String', function() {
testOpen(
@ -142,4 +147,45 @@
'}');
});
// ----------
asyncTest('ImageTileSource', function () {
testOpen({
type: "image",
url: "/test/data/A.png"
});
});
// ----------
asyncTest('Legacy Image Pyramid', function() {
// Although it is using image paths that happen to be in IIIF format, this is not a IIIFTileSource.
// The url values are opaque, just image locations.
// When emulating a legacy pyramid, IIIFTileSource calls functions from LegacyTileSource, so this
// adds a test for the legacy functionality too.
testOpen({
type: 'legacy-image-pyramid',
levels:[{
url: '/test/data/iiif_2_0_sizes/full/400,/0/default.jpg',
height: 291,
width: 400
},{
url: '/test/data/iiif_2_0_sizes/full/800,/0/default.jpg',
height: 582,
width: 800
},{
url: '/test/data/iiif_2_0_sizes/full/1600,/0/default.jpg',
height: 1164,
width: 1600
},{
url: '/test/data/iiif_2_0_sizes/full/3200,/0/default.jpg',
height: 2328,
width: 3200
},{
url: '/test/data/iiif_2_0_sizes/full/6976,/0/default.jpg',
height: 5074,
width: 6976
}]
});
});
})();

19
test/modules/navigator.js
View File

@ -200,28 +200,28 @@
var assessViewerInCorner = function (theContentCorner) {
return function () {
var expectedXCoordinate, expecteYCoordinate;
var expectedXCoordinate, expectedYCoordinate;
if (theContentCorner === "TOPLEFT") {
expectedXCoordinate = 0;
expecteYCoordinate = 0;
expectedYCoordinate = 0;
}
else if (theContentCorner === "TOPRIGHT") {
expectedXCoordinate = 1 - viewer.viewport.getBounds().width;
expecteYCoordinate = 0;
expectedYCoordinate = 0;
}
else if (theContentCorner === "BOTTOMRIGHT") {
expectedXCoordinate = 1 - viewer.viewport.getBounds().width;
expecteYCoordinate = 1 / viewer.source.aspectRatio - viewer.viewport.getBounds().height;
expectedYCoordinate = 1 / viewer.source.aspectRatio - viewer.viewport.getBounds().height;
}
else if (theContentCorner === "BOTTOMLEFT") {
expectedXCoordinate = 0;
expecteYCoordinate = 1 / viewer.source.aspectRatio - viewer.viewport.getBounds().height;
expectedYCoordinate = 1 / viewer.source.aspectRatio - viewer.viewport.getBounds().height;
}
if (viewer.viewport.getBounds().width < 1) {
Util.assessNumericValue(expectedXCoordinate, viewer.viewport.getBounds().x, 0.04, ' Viewer at ' + theContentCorner + ', x coord');
}
if (viewer.viewport.getBounds().height < 1 / viewer.source.aspectRatio) {
Util.assessNumericValue(expecteYCoordinate, viewer.viewport.getBounds().y, 0.04, ' Viewer at ' + theContentCorner + ', y coord');
Util.assessNumericValue(expectedYCoordinate, viewer.viewport.getBounds().y, 0.04, ' Viewer at ' + theContentCorner + ', y coord');
}
};
};
@ -801,7 +801,6 @@
});
asyncTest('Item positions including collection mode', function() {
var navAddCount = 0;
viewer = OpenSeadragon({
id: 'example',
@ -815,16 +814,16 @@
var openHandler = function() {
viewer.removeHandler('open', openHandler);
viewer.navigator.world.addHandler('add-item', navOpenHandler);
// The navigator may already have added the items.
navOpenHandler();
};
var navOpenHandler = function(event) {
navAddCount++;
if (navAddCount === 2) {
if (viewer.navigator.world.getItemCount() === 2) {
viewer.navigator.world.removeHandler('add-item', navOpenHandler);
setTimeout(function() {
// Test initial formation
equal(viewer.navigator.world.getItemCount(), 2, 'navigator has both items');
for (var i = 0; i < 2; i++) {
propEqual(viewer.navigator.world.getItemAt(i).getBounds(),
viewer.world.getItemAt(i).getBounds(), 'bounds are the same');

221
test/modules/rectangle.js Normal file
View File

@ -0,0 +1,221 @@
/* global module, asyncTest, $, ok, equal, notEqual, start, test, Util, testLog */
(function() {
module('Rectangle', {});
var precision = 0.000000001;
test('Constructor', function() {
var rect = new OpenSeadragon.Rect(1, 2, 3, 4, 5);
strictEqual(rect.x, 1, 'rect.x should be 1');
strictEqual(rect.y, 2, 'rect.y should be 2');
strictEqual(rect.width, 3, 'rect.width should be 3');
strictEqual(rect.height, 4, 'rect.height should be 4');
strictEqual(rect.degrees, 5, 'rect.degrees should be 5');
rect = new OpenSeadragon.Rect();
strictEqual(rect.x, 0, 'rect.x should be 0');
strictEqual(rect.y, 0, 'rect.y should be 0');
strictEqual(rect.width, 0, 'rect.width should be 0');
strictEqual(rect.height, 0, 'rect.height should be 0');
strictEqual(rect.degrees, 0, 'rect.degrees should be 0');
rect = new OpenSeadragon.Rect(0, 0, 1, 2, -405);
Util.assessNumericValue(Math.sqrt(2) / 2, rect.x, precision,
'rect.x should be sqrt(2)/2');
Util.assessNumericValue(-Math.sqrt(2) / 2, rect.y, precision,
'rect.y should be -sqrt(2)/2');
Util.assessNumericValue(2, rect.width, precision,
'rect.width should be 2');
Util.assessNumericValue(1, rect.height, precision,
'rect.height should be 1');
strictEqual(45, rect.degrees, 'rect.degrees should be 45');
rect = new OpenSeadragon.Rect(0, 0, 1, 2, 135);
Util.assessNumericValue(-Math.sqrt(2), rect.x, precision,
'rect.x should be -sqrt(2)');
Util.assessNumericValue(-Math.sqrt(2), rect.y, precision,
'rect.y should be -sqrt(2)');
Util.assessNumericValue(2, rect.width, precision,
'rect.width should be 2');
Util.assessNumericValue(1, rect.height, precision,
'rect.height should be 1');
strictEqual(45, rect.degrees, 'rect.degrees should be 45');
rect = new OpenSeadragon.Rect(0, 0, 1, 1, 585);
Util.assessNumericValue(0, rect.x, precision,
'rect.x should be 0');
Util.assessNumericValue(-Math.sqrt(2), rect.y, precision,
'rect.y should be -sqrt(2)');
Util.assessNumericValue(1, rect.width, precision,
'rect.width should be 1');
Util.assessNumericValue(1, rect.height, precision,
'rect.height should be 1');
strictEqual(45, rect.degrees, 'rect.degrees should be 45');
});
test('getTopLeft', function() {
var rect = new OpenSeadragon.Rect(1, 2, 3, 4, 5);
var expected = new OpenSeadragon.Point(1, 2);
ok(expected.equals(rect.getTopLeft()), "Incorrect top left point.");
});
test('getTopRight', function() {
var rect = new OpenSeadragon.Rect(0, 0, 1, 3);
var expected = new OpenSeadragon.Point(1, 0);
ok(expected.equals(rect.getTopRight()), "Incorrect top right point.");
rect.degrees = 45;
expected = new OpenSeadragon.Point(1 / Math.sqrt(2), 1 / Math.sqrt(2));
Util.assertPointsEquals(expected, rect.getTopRight(), precision,
"Incorrect top right point with rotation.");
});
test('getBottomLeft', function() {
var rect = new OpenSeadragon.Rect(0, 0, 3, 1);
var expected = new OpenSeadragon.Point(0, 1);
ok(expected.equals(rect.getBottomLeft()), "Incorrect bottom left point.");
rect.degrees = 45;
expected = new OpenSeadragon.Point(-1 / Math.sqrt(2), 1 / Math.sqrt(2));
Util.assertPointsEquals(expected, rect.getBottomLeft(), precision,
"Incorrect bottom left point with rotation.");
});
test('getBottomRight', function() {
var rect = new OpenSeadragon.Rect(0, 0, 1, 1);
var expected = new OpenSeadragon.Point(1, 1);
ok(expected.equals(rect.getBottomRight()), "Incorrect bottom right point.");
rect.degrees = 45;
expected = new OpenSeadragon.Point(0, Math.sqrt(2));
Util.assertPointsEquals(expected, rect.getBottomRight(), precision,
"Incorrect bottom right point with 45 rotation.");
rect.degrees = 90;
expected = new OpenSeadragon.Point(-1, 1);
Util.assertPointsEquals(expected, rect.getBottomRight(), precision,
"Incorrect bottom right point with 90 rotation.");
rect.degrees = 135;
expected = new OpenSeadragon.Point(-Math.sqrt(2), 0);
Util.assertPointsEquals(expected, rect.getBottomRight(), precision,
"Incorrect bottom right point with 135 rotation.");
});
test('getCenter', function() {
var rect = new OpenSeadragon.Rect(0, 0, 1, 1);
var expected = new OpenSeadragon.Point(0.5, 0.5);
ok(expected.equals(rect.getCenter()), "Incorrect center point.");
rect.degrees = 45;
expected = new OpenSeadragon.Point(0, 0.5 * Math.sqrt(2));
Util.assertPointsEquals(expected, rect.getCenter(), precision,
"Incorrect bottom right point with 45 rotation.");
rect.degrees = 90;
expected = new OpenSeadragon.Point(-0.5, 0.5);
Util.assertPointsEquals(expected, rect.getCenter(), precision,
"Incorrect bottom right point with 90 rotation.");
rect.degrees = 135;
expected = new OpenSeadragon.Point(-0.5 * Math.sqrt(2), 0);
Util.assertPointsEquals(expected, rect.getCenter(), precision,
"Incorrect bottom right point with 135 rotation.");
});
test('times', function() {
var rect = new OpenSeadragon.Rect(1, 2, 3, 4, 45);
var expected = new OpenSeadragon.Rect(2, 4, 6, 8, 45);
var actual = rect.times(2);
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect x2 rectangles.");
});
test('translate', function() {
var rect = new OpenSeadragon.Rect(1, 2, 3, 4, 45);
var expected = new OpenSeadragon.Rect(2, 4, 3, 4, 45);
var actual = rect.translate(new OpenSeadragon.Point(1, 2));
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect translation.");
});
test('union', function() {
var rect1 = new OpenSeadragon.Rect(2, 2, 2, 3);
var rect2 = new OpenSeadragon.Rect(0, 1, 1, 1);
var expected = new OpenSeadragon.Rect(0, 1, 4, 4);
var actual = rect1.union(rect2);
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect union with horizontal rectangles.");
rect1 = new OpenSeadragon.Rect(0, -Math.sqrt(2), 2, 2, 45);
rect2 = new OpenSeadragon.Rect(1, 0, 2, 2, 0);
expected = new OpenSeadragon.Rect(
-Math.sqrt(2),
-Math.sqrt(2),
3 + Math.sqrt(2),
2 + Math.sqrt(2));
actual = rect1.union(rect2);
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect union with non horizontal rectangles.");
});
test('rotate', function() {
var rect = new OpenSeadragon.Rect(0, 0, 2, 1);
var expected = new OpenSeadragon.Rect(
1 - 1 / (2 * Math.sqrt(2)),
0.5 - 3 / (2 * Math.sqrt(2)),
2,
1,
45);
var actual = rect.rotate(-675);
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect rectangle after rotation of -675deg around center.");
expected = new OpenSeadragon.Rect(0, 0, 2, 1, 33);
actual = rect.rotate(33, rect.getTopLeft());
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect rectangle after rotation of 33deg around topLeft.");
expected = new OpenSeadragon.Rect(0, 0, 2, 1, 101);
actual = rect.rotate(101, rect.getTopLeft());
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect rectangle after rotation of 187deg around topLeft.");
expected = new OpenSeadragon.Rect(0, 0, 2, 1, 187);
actual = rect.rotate(187, rect.getTopLeft());
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect rectangle after rotation of 187deg around topLeft.");
expected = new OpenSeadragon.Rect(0, 0, 2, 1, 300);
actual = rect.rotate(300, rect.getTopLeft());
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect rectangle after rotation of 300deg around topLeft.");
});
test('getBoundingBox', function() {
var rect = new OpenSeadragon.Rect(0, 0, 2, 3);
var bb = rect.getBoundingBox();
ok(rect.equals(bb), "Bounding box of horizontal rectangle should be " +
"identical to rectangle.");
rect.degrees = 90;
var expected = new OpenSeadragon.Rect(-3, 0, 3, 2);
Util.assertRectangleEquals(expected, rect.getBoundingBox(), precision,
"Bounding box of rect rotated 90deg.");
rect.degrees = 180;
var expected = new OpenSeadragon.Rect(-2, -3, 2, 3);
Util.assertRectangleEquals(expected, rect.getBoundingBox(), precision,
"Bounding box of rect rotated 180deg.");
rect.degrees = 270;
var expected = new OpenSeadragon.Rect(0, -2, 3, 2);
Util.assertRectangleEquals(expected, rect.getBoundingBox(), precision,
"Bounding box of rect rotated 270deg.");
});
})();

77
test/modules/units.js
View File

@ -2,6 +2,7 @@
(function () {
var viewer;
var precision = 0.00000001;
module('Units', {
setup: function () {
@ -26,8 +27,8 @@
function pointEqual(a, b, message) {
Util.assessNumericValue(a.x, b.x, 0.00000001, message);
Util.assessNumericValue(a.y, b.y, 0.00000001, message);
Util.assessNumericValue(a.x, b.x, precision, message);
Util.assessNumericValue(a.y, b.y, precision, message);
}
// Check that f^-1 ( f(x) ) = x
@ -151,8 +152,6 @@
start();
});
viewer.viewport.zoomTo(0.8).panTo(new OpenSeadragon.Point(0.1, 0.2));
start();
});
viewer.open([{
@ -167,6 +166,68 @@
});
// ---------
asyncTest('Multiple images coordinates conversion with viewport rotation', function () {
viewer.addHandler("open", function () {
var viewport = viewer.viewport;
var tiledImage1 = viewer.world.getItemAt(0);
var tiledImage2 = viewer.world.getItemAt(1);
var imageWidth = viewer.source.dimensions.x;
var imageHeight = viewer.source.dimensions.y;
var viewerWidth = $(viewer.element).width();
var viewerHeight = $(viewer.element).height();
var viewerMiddleTop = new OpenSeadragon.Point(viewerWidth / 2, 0);
var viewerMiddleBottom = new OpenSeadragon.Point(viewerWidth / 2, viewerHeight);
var point0_0 = new OpenSeadragon.Point(0, 0);
var point = viewport.viewerElementToViewportCoordinates(viewerMiddleTop);
pointEqual(point, point0_0, 'When opening, viewer middle top is also viewport 0,0');
var image1Pixel = tiledImage1.viewerElementToImageCoordinates(viewerMiddleTop);
pointEqual(image1Pixel, point0_0, 'When opening, viewer middle top is also image 1 pixel 0,0');
var image2Pixel = tiledImage2.viewerElementToImageCoordinates(viewerMiddleTop);
pointEqual(image2Pixel,
new OpenSeadragon.Point(-2 * imageWidth, -2 * imageHeight),
'When opening, viewer middle top is also image 2 pixel -2*imageWidth, -2*imageHeight');
point = viewport.viewerElementToViewportCoordinates(viewerMiddleBottom);
pointEqual(point, new OpenSeadragon.Point(1.5, 1.5),
'Viewer middle bottom has viewport coordinates 1.5,1.5.');
image1Pixel = tiledImage1.viewerElementToImageCoordinates(viewerMiddleBottom);
pointEqual(image1Pixel,
new OpenSeadragon.Point(imageWidth * 1.5, imageHeight * 1.5),
'Viewer middle bottom has image 1 pixel coordinates imageWidth * 1.5, imageHeight * 1.5');
image2Pixel = tiledImage2.viewerElementToImageCoordinates(viewerMiddleBottom);
pointEqual(image2Pixel,
new OpenSeadragon.Point(imageWidth, imageHeight),
'Viewer middle bottom has image 2 pixel coordinates imageWidth,imageHeight.');
checkPoint(' after opening');
viewer.addHandler('animation-finish', function animationHandler() {
viewer.removeHandler('animation-finish', animationHandler);
checkPoint(' after zoom and pan');
//Restore rotation
viewer.viewport.setRotation(0);
start();
});
viewer.viewport.zoomTo(0.8).panTo(new OpenSeadragon.Point(0.1, 0.2));
});
viewer.viewport.setRotation(45);
viewer.open([{
tileSource: "/test/data/testpattern.dzi"
}, {
tileSource: "/test/data/testpattern.dzi",
x: 1,
y: 1,
width: 0.5
}
]);
});
// ----------
asyncTest('ZoomRatio 1 image', function () {
viewer.addHandler("open", function () {
@ -188,10 +249,10 @@
var expectedViewportZoom = viewport.getZoom(true);
var actualImageZoom = viewport.viewportToImageZoom(
expectedViewportZoom);
equal(actualImageZoom, expectedImageZoom);
Util.assessNumericValue(actualImageZoom, expectedImageZoom, precision);
var actualViewportZoom = viewport.imageToViewportZoom(actualImageZoom);
equal(actualViewportZoom, expectedViewportZoom);
Util.assessNumericValue(actualViewportZoom, expectedViewportZoom, precision);
}
checkZoom();
@ -234,11 +295,11 @@
var actualImageZoom = image.viewportToImageZoom(
expectedViewportZoom);
Util.assessNumericValue(actualImageZoom, expectedImageZoom,
0.00000001);
precision);
var actualViewportImage1Zoom = image.imageToViewportZoom(actualImageZoom);
Util.assessNumericValue(
actualViewportImage1Zoom, expectedViewportZoom, 0.00000001);
actualViewportImage1Zoom, expectedViewportZoom, precision);
}
checkZoom(image1);

20
test/modules/viewport.js
View File

@ -218,6 +218,26 @@
});
});
asyncTest('getHomeBoundsWithRotation', function() {
function openHandler() {
viewer.removeHandler('open', openHandler);
var viewport = viewer.viewport;
viewport.setRotation(-675);
Util.assertRectangleEquals(
viewport.getHomeBounds(),
new OpenSeadragon.Rect(
(1 - Math.sqrt(2)) / 2,
(1 - Math.sqrt(2)) / 2,
Math.sqrt(2),
Math.sqrt(2)),
0.00000001,
"Test getHomeBounds with degrees = -675");
start();
}
viewer.addHandler('open', openHandler);
viewer.open(DZI_PATH);
});
asyncTest('getHomeZoom', function() {
reopenViewerHelper({
property: 'defaultZoomLevel',

1
test/test.html
View File

@ -39,6 +39,7 @@
<script src="/test/modules/tilesource.js"></script>
<script src="/test/modules/tilesourcecollection.js"></script>
<script src="/test/modules/spring.js"></script>
<script src="/test/modules/rectangle.js"></script>
<!-- The navigator tests are the slowest (for now; hopefully they can be sped up)
so we put them last. -->
<script src="/test/modules/navigator.js"></script>