penpot/frontend/src/uxbox/main/ui/shapes/selection.cljs
Andrey Antukh 8c28a8c0a7
Move workspace.base refs and streams into separated namespaces.
A first step for streams refactor.
2017-01-12 17:39:26 +01:00

405 lines
14 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) 2015-2017 Andrey Antukh <niwi@niwi.nz>
;; Copyright (c) 2015-2017 Juan de la Cruz <delacruzgarciajuan@gmail.com>
(ns uxbox.main.ui.shapes.selection
"Multiple selection handlers component."
(:require [lentes.core :as l]
[beicon.core :as rx]
[potok.core :as ptk]
[uxbox.store :as st]
[uxbox.main.constants :as c]
[uxbox.main.refs :as refs]
[uxbox.main.streams :as streams]
[uxbox.main.workers :as uwrk]
[uxbox.main.data.shapes :as uds]
[uxbox.main.ui.shapes.common :as scommon]
[uxbox.main.geom :as geom]
[uxbox.util.mixins :as mx :include-macros true]
[uxbox.util.rlocks :as rlocks]
[uxbox.util.geom.matrix :as gmt]
[uxbox.util.geom.point :as gpt]
[uxbox.util.dom :as dom]))
;; --- Refs & Constants
(def ^:private +circle-props+
{:r 6
:style {:fillOpacity "1"
:strokeWidth "1px"
:vectorEffect "non-scaling-stroke"}
:fill "#31e6e0"
:stroke "#28c4d4"})
(defn- focus-selected-shapes
[state]
(let [selected (get-in state [:workspace :selected])]
(mapv #(get-in state [:shapes %]) selected)))
(def ^:private selected-shapes-ref
(-> (l/lens focus-selected-shapes)
(l/derive st/state)))
(def ^:private edition-ref scommon/edition-ref)
;; --- Resize Implementation
(defn- rotate
[shape]
(let [{:keys [x1 y1 width height rotation]} (-> (geom/shape->rect-shape shape)
(assoc :type :rect)
(geom/size))
x-center (+ x1 (/ width 2))
y-center (+ y1 (/ height 2))
mt (-> (gmt/matrix)
(gmt/translate x-center y-center)
(gmt/rotate rotation)
(gmt/translate (- x-center) (- y-center)))]
(geom/transform shape mt)))
(defn- start-resize
[vid ids shape]
(letfn [(gen-matrix [shape {scalex :x scaley :y}]
(let [shape shape #_(rotate shape)]
(case vid
:top-left
(-> (gmt/matrix)
(gmt/translate (+ (:x2 shape))
(+ (:y2 shape)))
(gmt/scale scalex scaley)
(gmt/translate (- (:x2 shape))
(- (:y2 shape))))
:top-right
(-> (gmt/matrix)
(gmt/translate (+ (:x1 shape))
(+ (:y2 shape)))
(gmt/scale scalex scaley)
(gmt/translate (- (:x1 shape))
(- (:y2 shape))))
:top
(-> (gmt/matrix)
(gmt/translate (+ (:x1 shape))
(+ (:y2 shape)))
(gmt/scale scalex scaley)
(gmt/translate (- (:x1 shape))
(- (:y2 shape))))
:bottom-left
(-> (gmt/matrix)
(gmt/translate (+ (:x2 shape))
(+ (:y1 shape)))
(gmt/scale scalex scaley)
(gmt/translate (- (:x2 shape))
(- (:y1 shape))))
:bottom-right
(-> (gmt/matrix)
(gmt/translate (+ (:x1 shape))
(+ (:y1 shape)))
(gmt/scale scalex scaley)
(gmt/translate (- (:x1 shape))
(- (:y1 shape))))
:bottom
(-> (gmt/matrix)
(gmt/translate (+ (:x1 shape))
(+ (:y1 shape)))
(gmt/scale scalex scaley)
(gmt/translate (- (:x1 shape))
(- (:y1 shape))))
:right
(-> (gmt/matrix)
(gmt/translate (+ (:x1 shape))
(+ (:y1 shape)))
(gmt/scale scalex scaley)
(gmt/translate (- (:x1 shape))
(- (:y1 shape))))
:left
(-> (gmt/matrix)
(gmt/translate (+ (:x2 shape))
(+ (:y1 shape)))
(gmt/scale scalex scaley)
(gmt/translate (- (:x2 shape))
(- (:y1 shape))))
)))
(calculate-ratio [orig-shape {:keys [width height] :as shape}]
(let [result {:x (/ width (:width orig-shape))
:y (/ height (:height orig-shape))}]
result))
(accumulate-width [shape [{:keys [x y] :as point} ctrl?]]
(case vid
:top-left
(let [width (- (:x2 shape) x)
height (- (:y2 shape) y)
proportion (:proportion shape)]
(assoc shape
:width width
:height (if ctrl? (/ width proportion) height)))
:top-right
(let [width (- x (:x1 shape))
height (- (:y2 shape) y)
proportion (:proportion shape)]
(assoc shape
:width width
:height (if ctrl? (/ width proportion) height)))
:top
(let [width (- (:x2 shape) (:x1 shape))
height (- (:y2 shape) y)
proportion (:proportion shape)]
(assoc shape
:width width
:height (if ctrl? (/ width proportion) height)))
:bottom-left
(let [width (- (:x2 shape) x)
height (- y (:y1 shape))
proportion (:proportion shape)]
(assoc shape
:width width
:height (if ctrl? (/ width proportion) height)))
:bottom-right
(let [width (- x (:x1 shape))
height (- y (:y1 shape))
proportion (:proportion shape)]
(assoc shape
:width width
:height (if ctrl? (/ width proportion) height)))
:bottom
(let [width (- (:x2 shape) (:x1 shape))
height (- y (:y1 shape))
proportion (:proportion shape)]
(assoc shape
:width width
:height (if ctrl? (/ width proportion) height)))
:left
(let [width (- (:x2 shape) x)
height (- (:y2 shape) (:y1 shape))
proportion (:proportion shape)]
(assoc shape
:width width
:height (if ctrl? (/ width proportion) height)))
:right
(let [width (- x (:x1 shape))
height (- (:y2 shape) (:y1 shape))
proportion (:proportion shape)]
(assoc shape
:width width
:height (if ctrl? (/ width proportion) height)))
))
(on-resize [shape scale]
(let [mt (gen-matrix shape scale)
xf (map #(uds/apply-temporal-resize-matrix % mt))]
(apply st/emit! (sequence xf ids))))
(on-end []
(apply st/emit! (map uds/apply-resize-matrix ids))
(rlocks/release! :shape/resize))]
(let [shape (->> (geom/shape->rect-shape shape)
(geom/size))
stoper (->> streams/events-s
(rx/map first)
(rx/filter #(= % :mouse/up))
(rx/take 1))
stream (->> streams/mouse-canvas-s
(rx/map #(gpt/divide % @refs/selected-zoom))
(rx/mapcat (fn [point]
(if @refs/selected-alignment
(uwrk/align-point point)
(rx/of point))))
(rx/take-until stoper)
(rx/with-latest-from vector streams/mouse-ctrl-s)
(rx/scan accumulate-width shape)
(rx/map (partial calculate-ratio shape)))]
(rlocks/acquire! :shape/resize)
(rx/subscribe stream
(partial on-resize shape)
nil
on-end))))
;; --- Controls (Component)
(defn selection-rect
[{:keys [x1 y1 x2 y2 width height rotation] :as shape}]
{:x x1
:y y1
:rotation rotation
:width width
:height height})
(defn- render-path
[points]
{:pre [(pos? (count points))]}
(let [start (first points)
close? false
init (str "M " (:x start) " " (:y start))
path (reduce #(str %1 " L" (:x %2) " " (:y %2)) init points)]
(cond-> path
close? (str " Z"))))
(mx/defc controls
{:mixins [mx/static]}
[{:keys [x1 y1 width height] :as shape} zoom on-mouse-down]
[:g.controls
[:rect.main {:x x1 :y y1
:width width
:height height
:stroke-dasharray (str (/ 5.0 zoom) "," (/ 5 zoom))
:style {:stroke "#333" :fill "transparent"
:stroke-opacity "1"}}]
[:circle.top
(merge +circle-props+
{:on-mouse-down #(on-mouse-down :top %)
:r (/ 6.0 zoom)
:cx (+ x1 (/ width 2))
:cy (- y1 2)})]
[:circle.right
(merge +circle-props+
{:on-mouse-down #(on-mouse-down :right %)
:r (/ 6.0 zoom)
:cy (+ y1 (/ height 2))
:cx (+ x1 width 1)})]
[:circle.bottom
(merge +circle-props+
{:on-mouse-down #(on-mouse-down :bottom %)
:r (/ 6.0 zoom)
:cx (+ x1 (/ width 2))
:cy (+ y1 height 2)})]
[:circle.left
(merge +circle-props+
{:on-mouse-down #(on-mouse-down :left %)
:r (/ 6.0 zoom)
:cy (+ y1 (/ height 2))
:cx (- x1 3)})]
[:circle.top-left
(merge +circle-props+
{:on-mouse-down #(on-mouse-down :top-left %)
:r (/ 6.0 zoom)
:cx x1
:cy y1})]
[:circle.top-right
(merge +circle-props+
{:on-mouse-down #(on-mouse-down :top-right %)
:r (/ 6.0 zoom)
:cx (+ x1 width)
:cy y1})]
[:circle.bottom-left
(merge +circle-props+
{:on-mouse-down #(on-mouse-down :bottom-left %)
:r (/ 6.0 zoom)
:cx x1
:cy (+ y1 height)})]
[:circle.bottom-right
(merge +circle-props+
{:on-mouse-down #(on-mouse-down :bottom-right %)
:r (/ 6.0 zoom)
:cx (+ x1 width)
:cy (+ y1 height)})]])
;; --- Selection Handlers (Component)
(defn start-path-edition
[shape-id index]
(letfn [(on-move [delta]
(st/emit! (uds/update-path shape-id index delta)))
(on-end []
(rlocks/release! :shape/resize))]
(let [stoper (->> streams/events-s
(rx/map first)
(rx/filter #(= % :mouse/up))
(rx/take 1))
stream (rx/take-until stoper streams/mouse-delta-s)]
(rlocks/acquire! :shape/resize)
(when @refs/selected-alignment
(st/emit! (uds/initial-path-point-align shape-id index)))
(rx/subscribe stream on-move nil on-end))))
(mx/defc path-edition-selection-handlers
[{:keys [id points] :as shape} zoom]
(letfn [(on-mouse-down [index event]
(dom/stop-propagation event)
(rlocks/acquire! :shape/resize)
(start-path-edition id index))]
[:g.controls
(for [[index {:keys [x y]}] (map-indexed vector points)]
[:circle {:cx x :cy y
:r (/ 6.0 zoom)
:on-mouse-down (partial on-mouse-down index)
:fill "#31e6e0"
:stroke "#28c4d4"
:style {:cursor "pointer"}}])]))
(mx/defc multiple-selection-handlers
{:mixins [mx/static]}
[[shape & rest :as shapes] zoom]
(let [selection (-> (map #(geom/selection-rect %) shapes)
(geom/shapes->rect-shape)
(geom/selection-rect))
shape (geom/shapes->rect-shape shapes)
on-click #(do (dom/stop-propagation %2)
(start-resize %1 (map :id shapes) shape))]
(controls selection zoom on-click)))
(mx/defc single-selection-handlers
{:mixins [mx/static]}
[{:keys [id] :as shape} zoom]
(let [on-click #(do (dom/stop-propagation %2)
(start-resize %1 #{id} shape))
shape (geom/selection-rect shape)]
(controls shape zoom on-click)))
(mx/defc text-edition-selection-handlers
{:mixins [mx/static]}
[{:keys [id] :as shape} zoom]
(let [{:keys [x1 y1 width height] :as shape} (geom/selection-rect shape)]
[:g.controls
[:rect.main {:x x1 :y y1
:width width
:height height
;; :stroke-dasharray (str (/ 5.0 zoom) "," (/ 5 zoom))
:style {:stroke "#333"
:stroke-width "0.5"
:stroke-opacity "0.5"
:fill "transparent"}}]]))
(mx/defc selection-handlers
{:mixins [mx/reactive mx/static]}
[]
(let [shapes (mx/react selected-shapes-ref)
edition? (mx/react edition-ref)
zoom (mx/react refs/selected-zoom)
num (count shapes)
{:keys [type] :as shape} (first shapes)]
(cond
(zero? num)
nil
(> num 1)
(multiple-selection-handlers shapes zoom)
(and (= type :text) edition?)
(text-edition-selection-handlers shape zoom)
(= type :path)
(if (= @edition-ref (:id shape))
(path-edition-selection-handlers shape zoom)
(single-selection-handlers shape zoom))
:else
(single-selection-handlers shape zoom))))