penpot/frontend/src/app/main/ui/shapes/attrs.cljs
2024-03-19 11:27:06 +01:00

260 lines
9.4 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) KALEIDOS INC
(ns app.main.ui.shapes.attrs
(:require
[app.common.colors :as clr]
[app.common.data :as d]
[app.common.data.macros :as dm]
[app.common.files.helpers :as cfh]
[app.common.geom.shapes :as gsh]
[app.common.svg :as csvg]
[app.common.types.shape :refer [stroke-caps-line stroke-caps-marker]]
[app.common.types.shape.radius :as ctsr]
[app.util.object :as obj]
[cuerdas.core :as str]))
(defn- calculate-dasharray
[style width]
(let [w+5 (+ 5 width)
w+1 (+ 1 width)
w+10 (+ 10 width)]
(case style
:mixed (str/concat "" w+5 "," w+5 "," w+1 "," w+5)
:dotted (str/concat "0," w+5)
:dashed (str/concat "" w+10 "," w+10)
"")))
(defn get-border-props
[shape]
(case (ctsr/radius-mode shape)
:radius-1
(let [radius (gsh/shape-corners-1 shape)]
#js {:rx radius :ry radius})
:radius-4
(let [[r1 r2 r3 r4] (gsh/shape-corners-4 shape)
x (dm/get-prop shape :x)
y (dm/get-prop shape :y)
width (dm/get-prop shape :width)
height (dm/get-prop shape :height)
top (- width r1 r2)
right (- height r2 r3)
bottom (- width r3 r4)
left (- height r4 r1)]
#js {:d (dm/str
"M" (+ x r1) "," y " "
"h" top " "
"a" r2 "," r2 " 0 0 1 " r2 "," r2 " "
"v" right " "
"a" r3 "," r3 " 0 0 1 " (- r3) "," r3 " "
"h" (- bottom) " "
"a" r4 "," r4 " 0 0 1 " (- r4) "," (- r4) " "
"v" (- left) " "
"a" r1 "," r1 " 0 0 1 " r1 "," (- r1) " "
"z")})))
(defn add-border-props!
[props shape]
(obj/merge! props (get-border-props shape)))
(defn add-fill!
([attrs fill-data render-id index type]
(add-fill! attrs fill-data render-id index type "none"))
([attrs fill-data render-id index type fill-default]
(let [index (if (some? index) (dm/str "-" index) "")]
(cond
(contains? fill-data :fill-image)
(let [id (dm/str "fill-image-" render-id)]
(obj/set! attrs "fill" (dm/str "url(#" id ")")))
(some? (:fill-color-gradient fill-data))
(let [id (dm/str "fill-color-gradient-" render-id index)]
(obj/set! attrs "fill" (dm/str "url(#" id ")")))
(contains? fill-data :fill-color)
(obj/set! attrs "fill" (:fill-color fill-data))
:else
(obj/set! attrs "fill" fill-default))
(when (contains? fill-data :fill-opacity)
(obj/set! attrs "fillOpacity" (:fill-opacity fill-data)))
(when (and (= :text type)
(nil? (:fill-color-gradient fill-data))
(nil? (:fill-color fill-data)))
(obj/set! attrs "fill" "black"))
attrs)))
(defn add-stroke!
[attrs data render-id index open-path?]
(let [style (:stroke-style data :solid)]
(when-not (= style :none)
(let [width (:stroke-width data 1)
gradient (:stroke-color-gradient data)
color (:stroke-color data)
opacity (:stroke-opacity data)]
(obj/set! attrs "strokeWidth" width)
(when (some? gradient)
(let [gradient-id (dm/str "stroke-color-gradient-" render-id "-" index)]
(obj/set! attrs "stroke" (str/ffmt "url(#%)" gradient-id))))
(when-not (some? gradient)
(when (some? color)
(obj/set! attrs "stroke" color))
(when (some? opacity)
(obj/set! attrs "strokeOpacity" opacity)))
(when (not= style :svg)
(obj/set! attrs "strokeDasharray" (calculate-dasharray style width)))
;; For simple line caps we use svg stroke-line-cap attribute. This
;; only works if all caps are the same and we are not using the tricks
;; for inner or outer strokes.
(let [caps-start (:stroke-cap-start data)
caps-end (:stroke-cap-end data)
alignment (:stroke-alignment data)]
(cond
(and (contains? stroke-caps-line caps-start)
(= caps-start caps-end)
(or open-path?
(and (not= :inner alignment)
(not= :outer alignment)))
(not= :dotted style))
(obj/set! attrs "strokeLinecap" (name caps-start))
(= :dotted style)
(obj/set! attrs "strokeLinecap" "round"))
(when (or open-path?
(and (not= :inner alignment)
(not= :outer alignment)))
;; For other cap types we use markers.
(when (or (contains? stroke-caps-marker caps-start)
(and (contains? stroke-caps-line caps-start)
(not= caps-start caps-end)))
(obj/set! attrs "markerStart" (str/ffmt "url(#marker-%-%)" render-id (name caps-start))))
(when (or (contains? stroke-caps-marker caps-end)
(and (contains? stroke-caps-line caps-end)
(not= caps-start caps-end)))
(obj/set! attrs "markerEnd" (str/ffmt "url(#marker-%-%)" render-id (name caps-end))))))))
attrs))
(defn get-svg-props
[shape render-id]
(let [attrs (get shape :svg-attrs {})
defs (get shape :svg-defs {})]
(if (and (empty? defs)
(empty? attrs))
#js {}
(-> attrs
(csvg/update-attr-ids
(fn [id]
(if (contains? defs id)
(dm/str render-id "-" id)
id)))
(dissoc :id)
(obj/map->obj)))))
(defn get-fill-style
([fill-data index render-id type]
(add-fill! #js {} fill-data render-id index type))
([fill-data index render-id type fill-default]
(add-fill! #js {} fill-data render-id index type fill-default)))
(defn add-fill-props!
([props shape render-id]
(add-fill-props! props shape 0 render-id))
([props shape position render-id]
(let [shape-fills (get shape :fills)
shape-shadow (get shape :shadow)
shape-blur (get shape :blur)
svg-attrs (get-svg-props shape render-id)
svg-styles (obj/get svg-attrs "style")
shape-type (dm/get-prop shape :type)
style (-> (obj/get props "style")
(obj/clone)
(obj/merge! svg-styles))
url-fill? (or ^boolean (some? (:fill-image shape))
^boolean (cfh/image-shape? shape)
^boolean (> (count shape-fills) 1)
^boolean (some? (some :fill-color-gradient shape-fills))
^boolean (some? (some :fill-image shape-fills)))
props (if (cfh/frame-shape? shape)
props
(if (or (some? (->> shape-shadow (remove :hidden) seq))
(and (some? shape-blur) (not ^boolean (:hidden shape-blur))))
(obj/set! props "filter" (dm/fmt "url(#filter-%)" render-id))
props))]
(cond
;; If the shape comes from an imported SVG (we know because
;; it has the :svg-attrs atribute), and it does not have an
;; own fill, we set a default black fill. This will be
;; inherited by child nodes, and is for emulating the
;; behavior of standard SVG, in that a node that has no
;; explicit fill has a default fill of black. This may be
;; reset to normal if a Penpot frame shape appears below
;; (see main.ui.shapes.frame/frame-container).
(and ^boolean (contains? shape :svg-attrs)
^boolean (or ^boolean (= :svg-raw shape-type)
^boolean (= :group shape-type))
^boolean (empty? shape-fills))
(let [wstyle (get shape :wrapper-styles)
fill (obj/get wstyle "fill")
fill (d/nilv fill clr/black)]
(obj/set! style "fill" fill))
^boolean url-fill?
(do
(obj/unset! style "fill")
(obj/unset! style "fillOpacity")
(obj/set! props "fill" (dm/fmt "url(#fill-%-%)" position render-id)))
(and ^boolean (some? svg-styles)
^boolean (obj/contains? svg-styles "fill"))
(let [fill (obj/get svg-styles "fill")
opacity (obj/get svg-styles "fillOpacity")]
(when (some? fill)
(obj/set! style "fill" fill))
(when (some? opacity)
(obj/set! style "fillOpacity" opacity)))
(and ^boolean (some? svg-attrs)
^boolean (empty? shape-fills))
(let [fill (obj/get svg-attrs "fill")
opacity (obj/get svg-attrs "fillOpacity")]
(when (some? fill)
(obj/set! style "fill" fill))
(when (some? opacity)
(obj/set! style "fillOpacity" opacity)))
^boolean (d/not-empty? shape-fills)
(let [fill (nth shape-fills 0)
svg-fill (obj/get svg-attrs "fill")
fill-default (d/nilv svg-fill "none")]
(obj/merge! style (get-fill-style fill render-id 0 shape-type fill-default)))
(and ^boolean (cfh/path-shape? shape)
^boolean (empty? shape-fills))
(obj/set! style "fill" "none"))
(-> props
(obj/merge! svg-attrs)
(obj/set! "style" style)))))