A while ago I tried implementing a photo mask tool in MockoFun which is based on FabricJS
Check out an working example: https://jsfiddle.net/codingdude/sk84xLh2/
The solution I came up was combining the built in fabric.Image.filters.BlendImage filter with a custom FabricJS brush. Here's a glimpse at my implementation of that.
(function(){
| let cache = new Map(); | |
| let pending = new Map(); | |
| function fetchTextSync(url) { | |
| if (cache.has(url)) { | |
| return cache.get(url); | |
| } | |
| if (pending.has(url)) { | |
| throw pending.get(url); | |
| } |
| #!/bin/bash | |
| echo "###################################################" | |
| echo "########## Xcode Command-Line Tools ###############" | |
| echo "###################################################" | |
| xcode-select --install | |
| echo "###################################################" | |
| echo "############ Installing Homebrew ##################" | |
| echo "###################################################" |
| // The problem can be solved with a HashTable that keeps track of the keys and its values in the double linked list. | |
| // One interesting property about Double Linked List is that the node can remove itself without other reference. | |
| // In addition, it takes constant time to add and remove nodes from the head or tail. | |
| // we need to restrict key types as it is not possible | |
| // to support any type of keys in Association data | |
| /** | |
| * draw io | |
| * https://app.diagrams.net/#G1CGQ2rrhcgyjLS9ZYQSHXLsxfqn7vH402 |
I hereby claim:
To claim this, I am signing this object: