CTRLPainter now watches for offset with the combination shift+mouseleft+mousemove

app/js/ctrls/CTRLPainter.js

 
 // Setting-up Input controls.
 var input = new Input();
+input.enableKeyboardInput(true);
+input.enableMouseInput(true);
 input.preventDefaults = true;
 
 // Mouse handling...
       this.__brushColor = ci;
     }).bind(this);
     GlobalEvents.listen("active_palette_color", handle_color_change);
+
+    var handle_offset = (function(e){
+      this.__offset[0] += e.x - e.lastX;
+      this.__offset[1] += e.y - e.lastY;
+      this.render();
+    }).bind(this);
+    input.listen("shift+mouseleft+mousemove", handle_offset);
   }
 
+
+
+
   get onePaletteMode(){return this.__onePaletteMode;}
   set onePaletteMode(e){
     this.__onePaletteMode = (e === true);
     this.__gridEnabled = (e === true);
   }
 
+
+
+
   initialize(){
     if (canvas === null){
       canvas = document.getElementById(EL_CANVAS_ID);