FabricJS Resize Functions

function scaleObject(object, w_factor, h_factor)
{
    var scaleX = object.scaleX;
    var scaleY = object.scaleY;
    var left = object.left;
    var top = object.top;

    var tempScaleX = scaleX * w_factor;
    var tempScaleY = scaleY * h_factor;
    var tempLeft = left * w_factor;
    var tempTop = top * h_factor;

    object.scaleX = tempScaleX;
    object.scaleY = tempScaleY;
    object.left = tempLeft;
    object.top = tempTop;

    object.setCoords();
}

function scaleCanvas(newHeight, newWidth) {
    var w_factor = newWidth / canvas.getWidth();
    var h_factor = newHeight / canvas.getHeight();
    canvas.setHeight(newHeight);
    canvas.setWidth(newWidth);
    if (canvas.backgroundImage) {
        var bi = canvas.backgroundImage;
        bi.width = bi.width * w_factor;
        bi.height = bi.height * h_factor;
    }
    var objects = canvas.getObjects();
    for (var i in objects) {
        scaleObject(objects[i], w_factor, h_factor);
    }
    canvas.renderAll();
    canvas.calcOffset();
}