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First steps for collection mode

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This commit is contained in:
Ian Gilman 2014-11-11 17:14:48 -08:00
parent 673f698cc1
commit 56ddf8c9c3
4 changed files with 124 additions and 33 deletions
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32
src/tiledimage.js
View File

@ -39,6 +39,7 @@
* or {@link OpenSeadragon.Viewer#addTiledImage} instead.
* @class TiledImage
* @memberof OpenSeadragon
* @extends OpenSeadragon.EventSource
* @classdesc Handles rendering of tiles for an {@link OpenSeadragon.Viewer}.
* A new instance is created for each TileSource opened.
* @param {Object} options - Configuration for this TiledImage.
@ -68,6 +69,8 @@ $.TiledImage = function( options ) {
$.console.assert( options.imageLoader, "[TiledImage] options.imageLoader is required" );
$.console.assert( options.source, "[TiledImage] options.source is required" );
$.EventSource.call( this );
this._tileCache = options.tileCache;
delete options.tileCache;
@ -128,7 +131,7 @@ $.TiledImage = function( options ) {
}, options );
};
$.TiledImage.prototype = /** @lends OpenSeadragon.TiledImage.prototype */{
$.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadragon.TiledImage.prototype */{
/**
* @returns {Boolean} Whether the TiledImage is scheduled for an update at the
* soonest possible opportunity.
@ -175,8 +178,30 @@ $.TiledImage.prototype = /** @lends OpenSeadragon.TiledImage.prototype */{
*/
getContentSize: function() {
return new $.Point(this.source.dimensions.x, this.source.dimensions.y);
},
/**
* @fires OpenSeadragon.TiledImage.event:bounds-changed
*/
setPosition: function(position) {
this._worldX = position.x;
this._worldY = position.y;
this.updateAgain = true;
this._raiseBoundsChanged();
},
_raiseBoundsChanged: function() {
/**
* Raised when the TiledImage's bounds are changed.
* @event bounds-changed
* @memberOf OpenSeadragon.TiledImage
* @type {object}
* @property {OpenSeadragon.World} eventSource - A reference to the TiledImage which raised the event.
* @property {?Object} userData - Arbitrary subscriber-defined object.
*/
this.raiseEvent('bounds-changed');
}
};
});
/**
* @private
@ -794,8 +819,7 @@ function drawTiles( tiledImage, lastDrawn ){
viewer,
viewport,
position,
tileSource,
collectionTileSource;
tileSource;
// We need a callback to give image manipulation a chance to happen
var drawingHandler = function(args) {

23
src/viewer.js
View File

@ -384,10 +384,6 @@ $.Viewer = function( options ) {
});
this.world.addHandler('add-item', function(event) {
if (_this.viewport) {
_this.viewport.setHomeBounds(_this.world.getHomeBounds(), _this.world.getContentFactor());
}
// For backwards compatibility, we maintain the source property
_this.source = _this.world.getItemAt(0).source;
@ -399,10 +395,6 @@ $.Viewer = function( options ) {
});
this.world.addHandler('remove-item', function(event) {
if (_this.viewport) {
_this.viewport.setHomeBounds(_this.world.getHomeBounds(), _this.world.getContentFactor());
}
// For backwards compatibility, we maintain the source property
if (_this.world.getItemCount()) {
_this.source = _this.world.getItemAt(0).source;
@ -413,6 +405,12 @@ $.Viewer = function( options ) {
THIS[ _this.hash ].forceRedraw = true;
});
this.world.addHandler('home-bounds-changed', function(event) {
if (_this.viewport) {
_this.viewport.setHomeBounds(_this.world.getHomeBounds(), _this.world.getContentFactor());
}
});
this.world.addHandler('item-index-changed', function(event) {
// For backwards compatibility, we maintain the source property
_this.source = _this.world.getItemAt(0).source;
@ -1301,6 +1299,15 @@ $.extend( $.Viewer.prototype, $.EventSource.prototype, $.ControlDock.prototype,
index: options.index
});
if (_this.collectionMode) {
_this.world.layout({
rows: _this.collectionRows,
layout: _this.collectionLayout,
tileSize: _this.collectionTileSize,
tileMargin: _this.collectionTileMargin
});
}
if (_this.world.getItemCount() === 1 && !_this.preserveViewport) {
_this.viewport.goHome(true);
}

87
src/world.js
View File

@ -61,6 +61,8 @@ $.extend( $.World.prototype, $.EventSource.prototype, /** @lends OpenSeadragon.W
* @fires OpenSeadragon.World.event:add-item
*/
addItem: function( item, options ) {
var _this = this;
$.console.assert(item, "[World.addItem] item is required");
$.console.assert(item instanceof $.TiledImage, "[World.addItem] only TiledImages supported at this time");
@ -75,6 +77,11 @@ $.extend( $.World.prototype, $.EventSource.prototype, /** @lends OpenSeadragon.W
this._figureSizes();
this._needsUpdate = true;
// TODO: remove handler when removing item from world
item.addHandler('bounds-changed', function(event) {
_this._figureSizes();
});
/**
* Raised when an item is added to the World.
* @event add-item
@ -242,39 +249,79 @@ $.extend( $.World.prototype, $.EventSource.prototype, /** @lends OpenSeadragon.W
return this._contentFactor;
},
layout: function(config) {
var layout = config.layout || $.DEFAULT_SETTINGS.collectionLayout;
var rows = config.rows || $.DEFAULT_SETTINGS.collectionRows;
var wrap = Math.ceil(this._items.length / rows);
var x = 0;
var y = 0;
for (var i = 0; i < this._items.length; i++) {
if (i && (i % wrap) === 0) {
if (layout === 'horizontal') {
y += 1;
x = 0;
} else {
x += 1;
y = 0;
}
}
this._items[i].setPosition(new $.Point(x, y));
if (layout === 'horizontal') {
x += 1;
} else {
y += 1;
}
}
},
// private
_figureSizes: function() {
var oldHomeBounds = this._homeBounds ? this._homeBounds.clone() : null;
if ( !this._items.length ) {
this._homeBounds = new $.Rect(0, 0, 1, 1);
this._contentSize = new $.Point(1, 1);
return;
} else {
var bounds = this._items[0].getWorldBounds();
this._contentFactor = this._items[0].getContentSize().x / bounds.width;
var left = bounds.x;
var top = bounds.y;
var right = bounds.x + bounds.width;
var bottom = bounds.y + bounds.height;
var box;
for ( var i = 1; i < this._items.length; i++ ) {
box = this._items[i].getWorldBounds();
this._contentFactor = Math.max(this._contentFactor, this._items[i].getContentSize().x / box.width);
left = Math.min( left, box.x );
top = Math.min( top, box.y );
right = Math.max( right, box.x + box.width );
bottom = Math.max( bottom, box.y + box.height );
}
this._homeBounds = new $.Rect( left, top, right - left, bottom - top );
this._contentSize = new $.Point(this._homeBounds.width * this._contentFactor,
this._homeBounds.height * this._contentFactor);
}
var bounds = this._items[0].getWorldBounds();
this._contentFactor = this._items[0].getContentSize().x / bounds.width;
var left = bounds.x;
var top = bounds.y;
var right = bounds.x + bounds.width;
var bottom = bounds.y + bounds.height;
var box;
for ( var i = 1; i < this._items.length; i++ ) {
box = this._items[i].getWorldBounds();
this._contentFactor = Math.max(this._contentFactor, this._items[i].getContentSize().x / box.width);
left = Math.min( left, box.x );
top = Math.min( top, box.y );
right = Math.max( right, box.x + box.width );
bottom = Math.max( bottom, box.y + box.height );
if (!this._homeBounds.equals(oldHomeBounds)) {
/**
* Raised when the home bounds change.
* @event home-bounds-changed
* @memberOf OpenSeadragon.World
* @type {object}
* @property {OpenSeadragon.World} eventSource - A reference to the World which raised the event.
* @property {?Object} userData - Arbitrary subscriber-defined object.
*/
this.raiseEvent('home-bounds-changed');
}
this._homeBounds = new $.Rect( left, top, right - left, bottom - top );
this._contentSize = new $.Point(this._homeBounds.width * this._contentFactor,
this._homeBounds.height * this._contentFactor);
},
// private
_raiseRemoveItem: function(item) {
/**
* Raised when a item is removed.
* Raised when an item is removed.
* @event remove-item
* @memberOf OpenSeadragon.World
* @type {object}

15
test/demo/collections/main.js
View File

@ -16,6 +16,9 @@
// debugMode: true,
zoomPerScroll: 1.02,
showNavigator: testNavigator,
collectionMode: true,
collectionRows: 3,
collectionLayout: 'vertical',
// wrapHorizontal: true,
// wrapVertical: true,
id: "contentDiv",
@ -96,7 +99,7 @@
}
// this.crossTest3();
this.basicTest();
this.collectionTest();
},
// ----------
@ -189,6 +192,16 @@
});
},
// ----------
collectionTest: function() {
var tileSources = [];
for (var i = 0; i < 10; i++) {
tileSources.push('../../data/testpattern.dzi');
}
this.viewer.open(tileSources);
},
// ----------
gridTest: function() {
var self = this;