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add zoom_use_ctrl_key editor option #648

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add zoom_use_ctrl_key editor option #648

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49 changes: 31 additions & 18 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -18,24 +18,36 @@ Installing only a javascript library and with four lines of code.
🎨 [THEME EDIT GENERATOR](https://jerosoler.github.io/drawflow-theme-generator/)

## Table of contents
- [Features](#features)
- [Installation](#installation)
- [Running](#running)
- [Mouse and Keys](#mouse-and-keys)
- [Editor](#editor)
- [Options](#editor-options)
- [Modules](#modules)
- [Nodes](#nodes)
- [Node example](#node-example)
- [Register Node](#register-node)
- [Methods](#methods)
- [Methods example](#methods-example)
- [Events](#events)
- [Events example](#events-example)
- [Export / Import](#export-/-import)
- [Export example](#export-example)
- [Example](#example)
- [License](#license)
- [Drawflow](#drawflow)
- [Table of contents](#table-of-contents)
- [Features](#features)
- [Installation](#installation)
- [Clone](#clone)
- [CDN](#cdn)
- [NPM](#npm)
- [Typescript](#typescript)
- [Import](#import)
- [Require](#require)
- [Running](#running)
- [For vue 2 example.](#for-vue-2-example)
- [For vue 3 example.](#for-vue-3-example)
- [Nuxt](#nuxt)
- [Mouse and Keys](#mouse-and--keys)
- [Editor](#editor)
- [Editor options](#editor-options)
- [Reroute](#reroute)
- [Modules](#modules)
- [Nodes](#nodes)
- [Node example](#node-example)
- [Register Node](#register-node)
- [Methods](#methods)
- [Methods example](#methods-example)
- [Events](#events)
- [Events example](#events-example)
- [Export / Import](#export--import)
- [Export example](#export-example)
- [Example](#example)
- [License](#license)

## Features
- Drag Nodes
Expand Down Expand Up @@ -176,6 +188,7 @@ Parameter | Type | Default | Description
`zoom_min` | Number | 0.5 | Default zoom min
`zoom_value` | Number | 0.1 | Default zoom value update
`zoom_last_value` | Number | 1 | Default zoom last value
`zoom_use_ctrl_key` | Boolean | true | Force use of ctrl key when using mousewheel for zooming
`draggable_inputs` | Boolean | true | Drag nodes on click inputs
`useuuid` | Boolean | false | Use UUID as node ID instead of integer index. Only affect newly created nodes, do not affect imported nodes

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3 changes: 2 additions & 1 deletion src/drawflow.js
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,7 @@ export default class Drawflow {
this.zoom_min = 0.5;
this.zoom_value = 0.1;
this.zoom_last_value = 1;
this.zoom_use_ctrl_key = true;

// Mobile
this.evCache = new Array();
Expand Down Expand Up @@ -570,7 +571,7 @@ export default class Drawflow {
}

zoom_enter(event, delta) {
if (event.ctrlKey) {
if (!this.zoom_use_ctrl_key || event.ctrlKey) {
event.preventDefault()
if(event.deltaY > 0) {
// Zoom Out
Expand Down