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https://github.com/openseadragon/openseadragon.git
synced 2024-11-22 05:06:09 +03:00
Fix zoomTo/zoomBy with ref point and immediately to true. Fix #800
This commit is contained in:
Antoine Vandecreme
parent
b941864ac5
commit
8e755c389a
@ -805,7 +805,7 @@ $.Viewport.prototype = {
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* @return {OpenSeadragon.Viewport} Chainable.
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* @fires OpenSeadragon.Viewer.event:zoom
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*/
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zoomTo: function( zoom, refPoint, immediately ) {
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zoomTo: function(zoom, refPoint, immediately) {
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this.zoomPoint = refPoint instanceof $.Point &&
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!isNaN(refPoint.x) &&
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@ -813,13 +813,16 @@ $.Viewport.prototype = {
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refPoint :
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null;
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if ( immediately ) {
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this.zoomSpring.resetTo( zoom );
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if (immediately) {
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var _this = this;
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this._adjustCenterSpringsForZoomPoint(function() {
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_this.zoomSpring.resetTo(zoom);
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});
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} else {
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this.zoomSpring.springTo( zoom );
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this.zoomSpring.springTo(zoom);
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}
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if( this.viewer ){
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if (this.viewer) {
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/**
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* Raised when the viewport zoom level changes (see {@link OpenSeadragon.Viewport#zoomBy} and {@link OpenSeadragon.Viewport#zoomTo}).
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*
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@ -832,7 +835,7 @@ $.Viewport.prototype = {
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* @property {Boolean} immediately
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* @property {?Object} userData - Arbitrary subscriber-defined object.
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*/
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this.viewer.raiseEvent( 'zoom', {
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this.viewer.raiseEvent('zoom', {
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zoom: zoom,
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refPoint: refPoint,
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immediately: immediately
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@ -938,25 +941,10 @@ $.Viewport.prototype = {
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* @returns {Boolean} True if any change has been made, false otherwise.
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*/
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update: function() {
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if (this.zoomPoint) {
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var oldZoomPixel = this.pixelFromPoint(this.zoomPoint, true);
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this.zoomSpring.update();
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var newZoomPixel = this.pixelFromPoint(this.zoomPoint, true);
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var deltaZoomPixels = newZoomPixel.minus(oldZoomPixel);
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var deltaZoomPoints = this.deltaPointsFromPixels(
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deltaZoomPixels, true);
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this.centerSpringX.shiftBy(deltaZoomPoints.x);
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this.centerSpringY.shiftBy(deltaZoomPoints.y);
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if (this.zoomSpring.isAtTargetValue()) {
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this.zoomPoint = null;
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}
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} else {
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this.zoomSpring.update();
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}
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var _this = this;
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this._adjustCenterSpringsForZoomPoint(function() {
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_this.zoomSpring.update();
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});
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this.centerSpringX.update();
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this.centerSpringY.update();
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@ -972,6 +960,27 @@ $.Viewport.prototype = {
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return changed;
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},
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_adjustCenterSpringsForZoomPoint: function(zoomSpringHandler) {
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if (this.zoomPoint) {
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var oldZoomPixel = this.pixelFromPoint(this.zoomPoint, true);
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zoomSpringHandler();
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var newZoomPixel = this.pixelFromPoint(this.zoomPoint, true);
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var deltaZoomPixels = newZoomPixel.minus(oldZoomPixel);
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var deltaZoomPoints = this.deltaPointsFromPixels(
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deltaZoomPixels, true);
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this.centerSpringX.shiftBy(deltaZoomPoints.x);
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this.centerSpringY.shiftBy(deltaZoomPoints.y);
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if (this.zoomSpring.isAtTargetValue()) {
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this.zoomPoint = null;
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}
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} else {
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zoomSpringHandler();
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}
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},
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/**
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* Convert a delta (translation vector) from viewport coordinates to pixels
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* coordinates. This method does not take rotation into account.
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@ -36,7 +36,7 @@
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var TALL_PATH = '/test/data/tall.dzi';
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var WIDE_PATH = '/test/data/wide.dzi';
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var testZoomLevels = [-1, 0, 0.1, 0.5, 4, 10];
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var testZoomLevels = [0.1, 0.2, 0.5, 1, 4, 10];
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var testPoints = [
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new OpenSeadragon.Point(0, 0),
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@ -59,7 +59,6 @@
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var reopenViewerHelper = function(config) {
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var expected, level, actual, i = 0;
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var openHandler = function(event) {
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viewer.removeHandler('open', openHandler);
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var viewport = viewer.viewport;
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expected = config.processExpected(level, expected);
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actual = viewport[config.method]();
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@ -70,7 +69,7 @@
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"Test " + config.method + " with zoom level of " + level + ". Expected : " + expected + ", got " + actual
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);
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i++;
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if(i < testZoomLevels.length){
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if (i < testZoomLevels.length) {
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level = expected = testZoomLevels[i];
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var viewerConfig = {
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id: VIEWER_ID,
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@ -80,15 +79,22 @@
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viewerConfig[config.property] = level;
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viewer = OpenSeadragon(viewerConfig);
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viewer.addHandler('open', openHandler);
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viewer.addOnceHandler('open', openHandler);
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viewer.open(DZI_PATH);
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} else {
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start();
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}
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};
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viewer.addHandler('open', openHandler);
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level = expected = testZoomLevels[i];
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viewer[config.property] = level;
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var viewerConfig = {
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id: VIEWER_ID,
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prefixUrl: PREFIX_URL,
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springStiffness: SPRING_STIFFNESS
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};
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viewerConfig[config.property] = level;
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viewer = OpenSeadragon(viewerConfig);
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viewer.addOnceHandler('open', openHandler);
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viewer.open(DZI_PATH);
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};
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@ -211,15 +217,9 @@
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property: 'defaultZoomLevel',
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method: 'getHomeBounds',
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processExpected: function(level, expected) {
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// Have to special case this to avoid dividing by 0
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if(level === -1 || level === 0){
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expected = new OpenSeadragon.Rect(0, 0, 1, 1);
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} else {
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var sideLength = 1.0 / viewer.defaultZoomLevel; // it's a square in this case
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var position = 0.5 - (sideLength / 2.0);
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expected = new OpenSeadragon.Rect(position, position, sideLength, sideLength);
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}
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return expected;
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var sideLength = 1.0 / viewer.defaultZoomLevel; // it's a square in this case
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var position = 0.5 - (sideLength / 2.0);
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return new OpenSeadragon.Rect(position, position, sideLength, sideLength);
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}
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});
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});
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@ -333,44 +333,39 @@
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// I don't use the helper for this one because it sets a couple more
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// properties that would need special casing.
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asyncTest('getHomeZoomWithHomeFillsViewer', function() {
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var expected, level, i = 0;
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var i = 0;
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var openHandler = function(event) {
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viewer.removeHandler('open', openHandler);
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var viewport = viewer.viewport;
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viewport.zoomTo(ZOOM_FACTOR, null, true);
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// Special cases for oddball levels
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if (level === -1) {
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expected = 0.25;
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} else if(level === 0){
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expected = 1;
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}
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equal(
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viewport.getHomeZoom(),
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expected,
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"Test getHomeZoom with homeFillsViewer = true and default zoom level of " + expected
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testZoomLevels[i],
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"Test getHomeZoom with homeFillsViewer = true and default zoom level of " + testZoomLevels[i]
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);
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i++;
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if(i < testZoomLevels.length){
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level = expected = testZoomLevels[i];
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if (i < testZoomLevels.length) {
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viewer = OpenSeadragon({
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id: VIEWER_ID,
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prefixUrl: PREFIX_URL,
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id: VIEWER_ID,
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prefixUrl: PREFIX_URL,
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springStiffness: SPRING_STIFFNESS,
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defaultZoomLevel: level,
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defaultZoomLevel: testZoomLevels[i],
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homeFillsViewer: true
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});
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viewer.addHandler('open', openHandler);
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viewer.addOnceHandler('open', openHandler);
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viewer.open(TALL_PATH); // use a different image for homeFillsViewer
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} else {
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start();
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}
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};
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viewer.addHandler('open', openHandler);
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level = expected = testZoomLevels[i];
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viewer.homeFillsViewer = true;
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viewer.defaultZoomLevel = expected;
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viewer = OpenSeadragon({
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id: VIEWER_ID,
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prefixUrl: PREFIX_URL,
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springStiffness: SPRING_STIFFNESS,
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defaultZoomLevel: testZoomLevels[i],
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homeFillsViewer: true
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});
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viewer.addOnceHandler('open', openHandler);
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viewer.open(TALL_PATH); // use a different image for homeFillsViewer
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});
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@ -725,27 +720,18 @@
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viewer.open(DZI_PATH);
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});
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asyncTest('zoomBy', function(){
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asyncTest('zoomBy no ref point', function() {
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var openHandler = function(event) {
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viewer.removeHandler('open', openHandler);
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var viewport = viewer.viewport;
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for (var i = 0; i < testZoomLevels.length; i++){
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for (var i = 0; i < testZoomLevels.length; i++) {
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viewport.zoomBy(testZoomLevels[i], null, true);
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propEqual(
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viewport.getZoom(),
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testZoomLevels[i],
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"Zoomed by the correct amount."
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);
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// now use a ref point
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// TODO: check the ending position due to ref point
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viewport.zoomBy(testZoomLevels[i], testPoints[i], true);
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propEqual(
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viewport.getZoom(),
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testZoomLevels[i],
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"Zoomed by the correct amount."
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);
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}
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start();
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@ -754,27 +740,88 @@
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viewer.open(DZI_PATH);
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});
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asyncTest('zoomTo', function(){
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asyncTest('zoomBy with ref point', function() {
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var openHandler = function(event) {
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viewer.removeHandler('open', openHandler);
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var viewport = viewer.viewport;
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for (var i = 0; i < testZoomLevels.length; i++){
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var expectedCenters = [
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new OpenSeadragon.Point(5, 5),
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new OpenSeadragon.Point(6.996, 6.996),
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new OpenSeadragon.Point(7.246, 6.996),
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new OpenSeadragon.Point(7.246, 6.996),
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new OpenSeadragon.Point(7.621, 7.371),
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new OpenSeadragon.Point(7.621, 7.371),
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];
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for (var i = 0; i < testZoomLevels.length; i++) {
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viewport.zoomBy(testZoomLevels[i], testPoints[i], true);
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propEqual(
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viewport.getZoom(),
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testZoomLevels[i],
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"Zoomed by the correct amount."
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);
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assertPointsEquals(
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viewport.getCenter(),
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expectedCenters[i],
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1e-14,
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"Panned to the correct location."
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);
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}
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start();
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};
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viewer.addHandler('open', openHandler);
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viewer.open(DZI_PATH);
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});
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asyncTest('zoomTo no ref point', function() {
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var openHandler = function(event) {
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viewer.removeHandler('open', openHandler);
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var viewport = viewer.viewport;
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for (var i = 0; i < testZoomLevels.length; i++) {
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viewport.zoomTo(testZoomLevels[i], null, true);
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propEqual(
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viewport.getZoom(),
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testZoomLevels[i],
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"Zoomed to the correct level."
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);
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}
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// now use a ref point
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// TODO: check the ending position due to ref point
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start();
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};
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viewer.addHandler('open', openHandler);
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viewer.open(DZI_PATH);
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});
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asyncTest('zoomTo with ref point', function() {
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var openHandler = function(event) {
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viewer.removeHandler('open', openHandler);
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var viewport = viewer.viewport;
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var expectedCenters = [
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new OpenSeadragon.Point(5, 5),
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new OpenSeadragon.Point(4.7505, 4.7505),
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new OpenSeadragon.Point(4.6005, 4.7505),
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new OpenSeadragon.Point(4.8455, 4.9955),
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new OpenSeadragon.Point(5.2205, 5.3705),
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new OpenSeadragon.Point(5.2205, 5.3705),
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];
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for (var i = 0; i < testZoomLevels.length; i++) {
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viewport.zoomTo(testZoomLevels[i], testPoints[i], true);
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propEqual(
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viewport.getZoom(),
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testZoomLevels[i],
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"Zoomed to the correct level."
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);
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assertPointsEquals(
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viewport.getCenter(),
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expectedCenters[i],
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1e-14,
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"Panned to the correct location."
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);
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}
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start();
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