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feat(ZoomScroll): add #reset to revert view to default

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Closes #33
This commit is contained in:
Nico Rehwaldt 2014-04-14 15:09:45 +02:00
parent 8b1840d633
commit e3266af25b
1 changed files with 8 additions and 2 deletions
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10
lib/feature/zoomscroll/Service.js → lib/feature/zoomscroll/index.js
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@ -2,6 +2,7 @@ var mousewheel = require('./mousewheel');
var bpmnModule = require('../../di').defaultModule; var bpmnModule = require('../../di').defaultModule;
function ZoomScroll(events, canvas) { function ZoomScroll(events, canvas) {
var RANGE = { min: 0.2, max: 4 }; var RANGE = { min: 0.2, max: 4 };
@ -13,6 +14,10 @@ function ZoomScroll(events, canvas) {
return Math.max(RANGE.min, Math.min(RANGE.max, scale)); return Math.max(RANGE.min, Math.min(RANGE.max, scale));
} }
function reset() {
canvas.zoom('fit-viewport');
}
function zoom(direction, position) { function zoom(direction, position) {
var currentZoom = canvas.zoom(); var currentZoom = canvas.zoom();
@ -22,7 +27,7 @@ function ZoomScroll(events, canvas) {
} }
function initMouseWheel(element) { function init(element) {
mousewheel(element).on('mousewheel', function(event) { mousewheel(element).on('mousewheel', function(event) {
@ -51,11 +56,12 @@ function ZoomScroll(events, canvas) {
} }
events.on('canvas.init', function(e) { events.on('canvas.init', function(e) {
initMouseWheel(e.paper.node); init(e.paper.node);
}); });
// API // API
this.zoom = zoom; this.zoom = zoom;
this.reset = reset;
} }