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Adds rotate event. Fixes #454.

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This commit is contained in:
Dominik Picheta 2014-08-13 10:53:52 +01:00
parent afd8b48d6b
commit 873135b492
3 changed files with 39 additions and 20 deletions
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23
src/navigator.js
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@ -215,6 +215,16 @@ $.Navigator = function( options ){
unneededElement.parentNode.removeChild(unneededElement);
}
if (options.navigatorRotate)
{
var _this = this;
options.viewer.addHandler("rotate", function (args) {
_setTransformRotate(_this.viewer.navigator.displayRegionContainer, args.degrees);
_setTransformRotate(_this.viewer.navigator.displayRegion, -args.degrees);
_this.viewport.setRotation(args.degrees);
});
}
};
$.extend( $.Navigator.prototype, $.EventSource.prototype, $.Viewer.prototype, /** @lends OpenSeadragon.Navigator.prototype */{
@ -396,5 +406,18 @@ function onCanvasScroll( event ) {
return false;
}
/**
* @function
* @private
* @param {Object} element
* @param {Number} degrees
*/
function _setTransformRotate (element, degrees) {
element.style.webkitTransform = "rotate(" + degrees + "deg)";
element.style.mozTransform = "rotate(" + degrees + "deg)";
element.style.msTransform = "rotate(" + degrees + "deg)";
element.style.oTransform = "rotate(" + degrees + "deg)";
element.style.transform = "rotate(" + degrees + "deg)";
}
}( OpenSeadragon ));

3
src/viewer.js
View File

@ -2025,7 +2025,8 @@ function openTileSource( viewer, source ) {
tileSources: source,
tileHost: _this.tileHost,
prefixUrl: _this.prefixUrl,
viewer: _this
viewer: _this,
navigatorRotate: _this.navigatorRotate
});
}
}

33
src/viewport.js
View File

@ -712,20 +712,6 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
return this;
},
/**
* @function
* @private
* @param {Object} element
* @param {Number} degrees
*/
_setTransformRotate: function (element, degrees) {
element.style.webkitTransform = "rotate(" + degrees + "deg)";
element.style.mozTransform = "rotate(" + degrees + "deg)";
element.style.msTransform = "rotate(" + degrees + "deg)";
element.style.oTransform = "rotate(" + degrees + "deg)";
element.style.transform = "rotate(" + degrees + "deg)";
},
/**
* Currently only 90 degree rotation is supported and it only works
* with the canvas. Additionally, the navigator does not rotate yet,
@ -743,14 +729,23 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
if( degrees % 90 !== 0 ) {
throw new Error('Currently only 0, 90, 180, and 270 degrees are supported.');
}
if (this.viewer.navigator !== null && this.navigatorRotate) {
this._setTransformRotate(this.viewer.navigator.displayRegionContainer, degrees);
this._setTransformRotate(this.viewer.navigator.displayRegion, -degrees);
this.viewer.navigator.viewport.setRotation(degrees);
}
this.degrees = degrees;
this.viewer.forceRedraw();
/**
* Raised when rotation has been changed.
*
* @event update-viewport
* @memberof OpenSeadragon.Viewer
* @type {object}
* @property {OpenSeadragon.Viewer} eventSource - A reference to the Viewer which raised the event.
* @property {Number} degrees - The number of degrees the rotation was set to.
* @property {?Object} userData - Arbitrary subscriber-defined object.
*/
if (this.viewer.navigator !== null)
{
this.viewer.raiseEvent('rotate', {"degrees": degrees});
}
return this;
},