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penpot/frontend/src/uxbox/main/exports.cljs
2020-04-29 11:03:48 +02:00

112 lines
4 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) 2016 Andrey Antukh <niwi@niwi.nz>
(ns uxbox.main.exports
"The main logic for SVG export functionality."
(:require
[rumext.alpha :as mf]
[uxbox.common.uuid :as uuid]
[uxbox.util.math :as mth]
[uxbox.util.geom.shapes :as geom]
[uxbox.util.geom.point :as gpt]
[uxbox.util.geom.matrix :as gmt]
[uxbox.main.ui.shapes.frame :as frame]
[uxbox.main.ui.shapes.circle :as circle]
[uxbox.main.ui.shapes.icon :as icon]
[uxbox.main.ui.shapes.image :as image]
[uxbox.main.ui.shapes.path :as path]
[uxbox.main.ui.shapes.rect :as rect]
[uxbox.main.ui.shapes.text :as text]
[uxbox.main.ui.shapes.group :as group]))
(def ^:private background-color "#E8E9EA") ;; $color-canvas
(mf/defc background
[]
[:rect
{:x 0 :y 0
:width "100%"
:height "100%"
:fill background-color}])
(defn- calculate-dimensions
[data]
(let [shapes (vals (:objects data))
shape (geom/shapes->rect-shape shapes)
width (+ (:x shape) (:width shape) 100)
height (+ (:y shape) (:height shape) 100)]
{:width (if (mth/nan? width) 100 width)
:height (if (mth/nan? height) 100 height)}))
(declare shape-wrapper)
(defn frame-wrapper
[objects]
(mf/fnc frame-wrapper
[{:keys [shape] :as props}]
(let [childs (mapv #(get objects %)
(:shapes shape))
shape-wrapper (mf/use-memo (mf/deps objects)
#(shape-wrapper objects))
frame-shape (mf/use-memo (mf/deps objects)
#(frame/frame-shape shape-wrapper))
shape (geom/transform-shape shape)]
[:& frame-shape {:shape shape :childs childs}])))
(defn group-wrapper
[objects]
(mf/fnc group-wrapper
[{:keys [shape frame] :as props}]
(let [children (mapv #(get objects %)
(:shapes shape))
shape-wrapper (mf/use-memo (mf/deps objects)
#(shape-wrapper objects))
group-shape (mf/use-memo (mf/deps objects)
#(group/group-shape shape-wrapper))]
[:& group-shape {:frame frame
:shape shape
:children children}])))
(defn shape-wrapper
[objects]
(mf/fnc shape-wrapper
[{:keys [frame shape] :as props}]
(let [group-wrapper (mf/use-memo (mf/deps objects) #(group-wrapper objects))]
(when (and shape (not (:hidden shape)))
(let [shape (geom/transform-shape frame shape)
opts #js {:shape shape}]
(case (:type shape)
:curve [:> path/path-shape opts]
:text [:> text/text-shape opts]
:icon [:> icon/icon-shape opts]
:rect [:> rect/rect-shape opts]
:path [:> path/path-shape opts]
:image [:> image/image-shape opts]
:circle [:> circle/circle-shape opts]
:group [:> group-wrapper {:shape shape :frame frame}]
nil))))))
(mf/defc page-svg
{::mf/wrap [mf/memo]}
[{:keys [data] :as props}]
(let [objects (:objects data)
root (get objects uuid/zero)
shapes (->> (:shapes root)
(map #(get objects %)))
dim (calculate-dimensions data)
frame-wrapper (mf/use-memo (mf/deps objects) #(frame-wrapper objects))
shape-wrapper (mf/use-memo (mf/deps objects) #(shape-wrapper objects))]
[:svg {:view-box (str "0 0 " (:width dim 0) " " (:height dim 0))
:version "1.1"
:xmlnsXlink "http://www.w3.org/1999/xlink"
:xmlns "http://www.w3.org/2000/svg"}
[:& background]
(for [item shapes]
(if (= (:type item) :frame)
[:& frame-wrapper {:shape item
:key (:id item)}]
[:& shape-wrapper {:shape item
:key (:id item)}]))]))