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Mouse Wheel Zoom 

git-svn-id: http://svg-edit.googlecode.com/svn/trunk@2274 eee81c28-f429-11dd-99c0-75d572ba1ddd
master
Rafael Couto 2013-01-09 23:23:28 +00:00
parent 89416b0ac6
commit fcdbbe7474
1 changed files with 22 additions and 0 deletions
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22
editor/svg-editor.js
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@ -820,6 +820,28 @@
zoomDone();
}
//bad UA sniffing ...modernizr can't help https://github.com/Modernizr/Modernizr/wiki/Undetectables
var mouseWheelEvt=(/Firefox/i.test(navigator.userAgent))? "DOMMouseScroll" : "mousewheel"
$('#workarea').bind(mouseWheelEvt, function(e){
var evt = e.originalEvent;
var delta;
if (evt.wheelDelta) delta = Math.max(-1, Math.min(1, (evt.wheelDelta)));
else if (evt.detail) delta = Math.max(-1, Math.min(1, (-evt.detail)));
var zoom = Math.round((svgCanvas.getZoom() + delta * 0.05) * 100)/100;
var w_area = workarea;
zoomChanged(window, {
width: 0,
height: 0,
// center pt of scroll position
// should be relative to mouse position
x: (w_area[0].scrollLeft + w_area.width()/2)/zoom,
y: (w_area[0].scrollTop + w_area.height()/2)/zoom,
zoom: zoom
}, true);
if (evt.preventDefault) evt.preventDefault();
evt.returnValue = false;
});
$('#cur_context_panel').delegate('a', 'click', function() {
var link = $(this);