2016-03-01 20:39:28 +02:00

102 lines
3.9 KiB
Clojure

;; This Source Code Form is subject to the terms of the Mozilla Public
;; License, v. 2.0. If a copy of the MPL was not distributed with this
;; file, You can obtain one at http://mozilla.org/MPL/2.0/.
;;
;; Copyright (c) 2015-2016 Andrey Antukh <niwi@niwi.nz>
;; Copyright (c) 2015-2016 Juan de la Cruz <delacruzgarciajuan@gmail.com>
(ns uxbox.ui.workspace.canvas.draw
(:require-macros [uxbox.util.syntax :refer [define-once]])
(:require [sablono.core :as html :refer-macros [html]]
[rum.core :as rum]
[beicon.core :as rx]
[lentes.core :as l]
[uxbox.rstore :as rs]
[uxbox.shapes :as ush]
[uxbox.data.workspace :as udw]
[uxbox.data.shapes :as uds]
[uxbox.ui.core :as uuc]
[uxbox.ui.shapes.core :as uusc]
[uxbox.ui.workspace.base :as wb]
[uxbox.ui.mixins :as mx]
[uxbox.util.geom.point :as gpt]
[uxbox.util.dom :as dom]))
(defonce +drawing-shape+ (atom nil))
(defonce +drawing-position+ (atom nil))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Component
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defn- draw-area-render
[own]
(let [shape (rum/react +drawing-shape+)
position (rum/react +drawing-position+)]
(when shape
(-> (assoc shape :drawing? true)
(ush/resize position)
(uusc/render-shape identity)))))
(def ^:static draw-area
(mx/component
{:render draw-area-render
:name "draw-area"
:mixins [mx/static rum/reactive]}))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Subscriptions
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; FIXME: this works for now, but should be refactored when advanced rendering
;; is introduced such as polyline, polygon and path.
(define-once :drawing-subscriptions
(letfn [(init-shape [shape]
(let [{:keys [x y] :as point} @wb/mouse-canvas-a
shape (ush/initialize shape {:x1 x :y1 y :x2 x :y2 y})]
(reset! +drawing-shape+ shape)
(reset! +drawing-position+ (assoc point :lock false))
(let [stoper (->> uuc/actions-s
(rx/map :type)
(rx/filter #(not= % :shape/movement))
(rx/take 1))]
(as-> wb/mouse-canvas-s $
(rx/take-until stoper $)
(rx/with-latest-from vector wb/mouse-ctrl-s $)
(rx/subscribe $ on-value nil on-complete)))))
(on-value [[point ctrl?]]
(reset! +drawing-position+ (assoc point :lock ctrl?)))
(on-complete []
(let [shape @+drawing-shape+
shpos @+drawing-position+
shape (ush/resize shape shpos)]
(rs/emit! (uds/add-shape shape)
(udw/select-for-drawing nil))
(reset! +drawing-position+ nil)
(reset! +drawing-shape+ nil)))
(init-icon [shape]
(let [{:keys [x y]} @wb/mouse-canvas-a
props {:x1 x :y1 y :x2 (+ x 100) :y2 (+ y 100)}
shape (ush/initialize shape props)]
(rs/emit! (uds/add-shape shape)
(udw/select-for-drawing nil))))
(init []
(when-let [shape (:drawing @wb/workspace-l)]
(case (:type shape)
:builtin/icon (init-icon shape)
:builtin/text (init-shape shape)
:builtin/rect (init-shape shape)
:builtin/circle (init-shape shape)
:builtin/line (init-shape shape))))]
(as-> uuc/actions-s $
(rx/map :type $)
(rx/dedupe $)
(rx/filter #(= :draw/shape %) $)
(rx/on-value $ init))))