penpot/frontend/src/app/main/ui/measurements.cljs
2023-03-23 09:14:58 +01:00

875 lines
39 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.measurements
(:require
[app.common.data :as d]
[app.common.data.macros :as dm]
[app.common.geom.point :as gpt]
[app.common.geom.shapes :as gsh]
[app.common.geom.shapes.flex-layout :as gsl]
[app.common.geom.shapes.points :as gpo]
[app.common.math :as mth]
[app.common.pages.helpers :as cph]
[app.common.types.modifiers :as ctm]
[app.common.uuid :as uuid]
[app.main.data.workspace.modifiers :as dwm]
[app.main.data.workspace.state-helpers :as wsh]
[app.main.refs :as refs]
[app.main.store :as st]
[app.main.ui.cursors :as cur]
[app.main.ui.formats :as fmt]
[app.main.ui.workspace.viewport.viewport-ref :refer [point->viewport]]
[app.util.dom :as dom]
[rumext.v2 :as mf]))
;; ------------------------------------------------
;; CONSTANTS
;; ------------------------------------------------
(def font-size 11)
(def selection-rect-width 1)
(def select-color "var(--color-select)")
(def select-guide-width 1)
(def select-guide-dasharray 5)
(def hover-color "var(--color-distance)")
(def hover-color-text "var(--color-white)")
(def hover-guide-width 1)
(def size-display-color "var(--color-white)")
(def size-display-opacity 0.7)
(def size-display-text-color "var(--color-black)")
(def size-display-width-min 50)
(def size-display-width-max 75)
(def size-display-height 16)
(def distance-color "var(--color-distance)")
(def distance-text-color "var(--color-white)")
(def distance-border-radius 2)
(def distance-pill-width 50)
(def distance-pill-height 16)
(def distance-line-stroke 1)
(def warning-color "var(--color-warning)")
(def flex-display-pill-width 40)
(def flex-display-pill-height 20)
(def flex-display-pill-border-radius 4)
;; ------------------------------------------------
;; HELPERS
;; ------------------------------------------------
(defn bound->selrect [bounds]
{:x (:x bounds)
:y (:y bounds)
:x1 (:x bounds)
:y1 (:y bounds)
:x2 (+ (:x bounds) (:width bounds))
:y2 (+ (:y bounds) (:height bounds))
:width (:width bounds)
:height (:height bounds)})
(defn calculate-guides
"Calculates coordinates for the selection guides"
[bounds selrect]
(let [{bounds-width :width bounds-height :height} bounds
{:keys [x y width height]} selrect]
[[(:x bounds) y (+ (:x bounds) bounds-width) y]
[(:x bounds) (+ y height) (+ (:x bounds) bounds-width) (+ y height)]
[x (:y bounds) x (+ (:y bounds) bounds-height)]
[(+ x width) (:y bounds) (+ x width) (+ (:y bounds) bounds-height)]]))
(defn calculate-distance-lines
"Given a start/end from two shapes gives the distance lines"
[from-s from-e to-s to-e]
(let [ss (- to-s from-s)
se (- to-e from-s)
es (- to-s from-e)
ee (- to-e from-e)]
(cond-> []
(or (and (neg? ss) (pos? se))
(and (pos? ss) (neg? ee))
(and (neg? ss) (> ss se)))
(conj [ from-s (+ from-s ss) ])
(and (neg? se) (<= ss se))
(conj [ from-s (+ from-s se) ])
(and (pos? es) (<= es ee))
(conj [ from-e (+ from-e es) ])
(or (and (pos? ee) (neg? es))
(and (neg? ee) (pos? ss))
(and (pos? ee) (< ee es)))
(conj [ from-e (+ from-e ee) ]))))
;; ------------------------------------------------
;; COMPONENTS
;; ------------------------------------------------
(mf/defc size-display [{:keys [selrect zoom]}]
(let [{:keys [x y width height]} selrect
size-label (dm/str (fmt/format-number width) " x " (fmt/format-number height))
rect-height (/ size-display-height zoom)
rect-width (/ (if (<= (count size-label) 9)
size-display-width-min
size-display-width-max)
zoom)
text-padding (/ 4 zoom)]
[:g.size-display
[:rect {:x (+ x (/ width 2) (- (/ rect-width 2)))
:y (- (+ y height) rect-height)
:width rect-width
:height rect-height
:style {:fill size-display-color
:fill-opacity size-display-opacity}}]
[:text {:x (+ (+ x (/ width 2) (- (/ rect-width 2))) (/ rect-width 2))
:y (- (+ y height (+ text-padding (/ rect-height 2))) rect-height)
:width rect-width
:height rect-height
:text-anchor "middle"
:style {:fill size-display-text-color
:font-size (/ font-size zoom)}}
size-label]]))
(mf/defc distance-display-pill [{:keys [x y zoom distance bounds]}]
(let [distance-pill-width (/ distance-pill-width zoom)
distance-pill-height (/ distance-pill-height zoom)
font-size (/ font-size zoom)
text-padding (/ 3 zoom)
distance-border-radius (/ distance-border-radius zoom)
{bounds-width :width bounds-height :height} bounds
rect-x (- x (/ distance-pill-width 2))
rect-y (- y (/ distance-pill-height 2))
text-x x
text-y (+ y text-padding)
offset-x (cond (< rect-x (:x bounds)) (- (:x bounds) rect-x)
(> (+ rect-x distance-pill-width) (+ (:x bounds) bounds-width))
(- (+ (:x bounds) bounds-width) (+ rect-x distance-pill-width))
:else 0)
offset-y (cond (< rect-y (:y bounds)) (- (:y bounds) rect-y)
(> (+ rect-y distance-pill-height) (+ (:y bounds) bounds-height))
(- (+ (:y bounds) bounds-height) (+ rect-y distance-pill-height (/ distance-pill-height 2)))
:else 0)]
[:g.distance-pill
[:rect {:x (+ rect-x offset-x)
:y (+ rect-y offset-y)
:rx distance-border-radius
:ry distance-border-radius
:width distance-pill-width
:height distance-pill-height
:style {:fill distance-color}}]
[:text {:x (+ text-x offset-x)
:y (+ text-y offset-y)
:rx distance-border-radius
:ry distance-border-radius
:text-anchor "middle"
:width distance-pill-width
:height distance-pill-height
:style {:fill distance-text-color
:font-size font-size}}
(fmt/format-pixels distance)]]))
(mf/defc selection-rect [{:keys [selrect zoom]}]
(let [{:keys [x y width height]} selrect
selection-rect-width (/ selection-rect-width zoom)]
[:g.selection-rect
[:rect {:x x
:y y
:width width
:height height
:style {:fill "none"
:stroke hover-color
:stroke-width selection-rect-width}}]]))
(mf/defc distance-display [{:keys [from to zoom bounds]}]
(let [fixed-x (if (gsh/fully-contained? from to)
(+ (:x to) (/ (:width to) 2))
(+ (:x from) (/ (:width from) 2)))
fixed-y (if (gsh/fully-contained? from to)
(+ (:y to) (/ (:height to) 2))
(+ (:y from) (/ (:height from) 2)))
v-lines (->> (calculate-distance-lines (:y1 from) (:y2 from) (:y1 to) (:y2 to))
(map (fn [[start end]] [fixed-x start fixed-x end])))
h-lines (->> (calculate-distance-lines (:x1 from) (:x2 from) (:x1 to) (:x2 to))
(map (fn [[start end]] [start fixed-y end fixed-y])))
lines (d/concat-vec v-lines h-lines)
distance-line-stroke (/ distance-line-stroke zoom)]
(for [[x1 y1 x2 y2] lines]
(let [center-x (+ x1 (/ (- x2 x1) 2))
center-y (+ y1 (/ (- y2 y1) 2))
distance (gpt/distance (gpt/point x1 y1) (gpt/point x2 y2))]
(when-not (mth/almost-zero? distance)
[:g.distance-line {:key (dm/str "line-" x1 "-" y1 "-" x2 "-" y2)}
[:line
{:x1 x1
:y1 y1
:x2 x2
:y2 y2
:style {:stroke distance-color
:stroke-width distance-line-stroke}}]
[:& distance-display-pill
{:x center-x
:y center-y
:zoom zoom
:distance distance
:bounds bounds}]])))))
(mf/defc selection-guides [{:keys [bounds selrect zoom]}]
[:g.selection-guides
(for [[idx [x1 y1 x2 y2]] (d/enumerate (calculate-guides bounds selrect))]
[:line {:key (dm/str "guide-" idx)
:x1 x1
:y1 y1
:x2 x2
:y2 y2
:style {:stroke select-color
:stroke-width (/ select-guide-width zoom)
:stroke-dasharray (/ select-guide-dasharray zoom)}}])])
(mf/defc measurement
[{:keys [bounds frame selected-shapes hover-shape zoom]}]
(let [selected-ids (into #{} (map :id) selected-shapes)
selected-selrect (gsh/selection-rect selected-shapes)
hover-selrect (-> hover-shape :points gsh/points->selrect)
bounds-selrect (bound->selrect bounds)
hover-selected-shape? (not (contains? selected-ids (:id hover-shape)))]
(when (seq selected-shapes)
[:g.measurement-feedback {:pointer-events "none"}
[:& selection-guides {:selrect selected-selrect
:bounds bounds
:zoom zoom}]
[:& size-display {:selrect selected-selrect :zoom zoom}]
(if (or (not hover-shape) (not hover-selected-shape?))
(when (and frame (not= uuid/zero (:id frame)))
(let [frame-bb (-> (:points frame) (gsh/points->selrect))]
[:g.hover-shapes
[:& selection-rect {:type :hover :selrect frame-bb :zoom zoom}]
[:& distance-display {:from frame-bb
:to selected-selrect
:zoom zoom
:bounds bounds-selrect}]]))
[:g.hover-shapes
[:& selection-rect {:type :hover :selrect hover-selrect :zoom zoom}]
[:& size-display {:selrect hover-selrect :zoom zoom}]
[:& distance-display {:from hover-selrect :to selected-selrect :zoom zoom :bounds bounds-selrect}]])])))
(mf/defc flex-display-pill [{:keys [x y width height font-size border-radius value color]}]
[:g.distance-pill
[:rect {:x x
:y y
:width width
:height height
:rx border-radius
:ry border-radius
:style {:fill color}}]
[:text {:x (+ x (/ width 2))
:y (+ y (/ height 2))
:text-anchor "middle"
:text-align "center"
:dominant-baseline "central"
:style {:fill distance-text-color
:font-size font-size}}
(fmt/format-number (or value 0))]])
(mf/defc padding-display [{:keys [frame-id zoom hover-all? hover-v? hover-h? padding-num padding on-pointer-enter on-pointer-leave
rect-data hover? selected? mouse-pos hover-value]}]
(let [resizing? (mf/use-var false)
start (mf/use-var nil)
original-value (mf/use-var 0)
negate? (true? (:resize-negate? rect-data))
axis (:resize-axis rect-data)
on-pointer-down
(mf/use-callback
(mf/deps frame-id rect-data padding-num)
(fn [event]
(dom/capture-pointer event)
(reset! resizing? true)
(reset! start (dom/get-client-position event))
(reset! original-value (:initial-value rect-data))))
on-lost-pointer-capture
(mf/use-callback
(mf/deps frame-id padding-num)
(fn [event]
(dom/release-pointer event)
(reset! resizing? false)
(reset! start nil)
(reset! original-value 0)
(st/emit! (dwm/apply-modifiers))))
on-pointer-move
(mf/use-callback
(mf/deps frame-id padding-num padding)
(fn [event]
(let [pos (dom/get-client-position event)]
(reset! mouse-pos (point->viewport pos))
(when @resizing?
(let [delta (-> (gpt/to-vec @start pos)
(cond-> negate? gpt/negate)
(get axis))
val (int (max (+ @original-value (/ delta zoom)) 0))
layout-padding (cond
hover-all? (assoc padding :p1 val :p2 val :p3 val :p4 val)
hover-v? (assoc padding :p1 val :p3 val)
hover-h? (assoc padding :p2 val :p4 val)
:else (assoc padding padding-num val))
layout-padding-type (if (= (:p1 padding) (:p2 padding) (:p3 padding) (:p4 padding)) :simple :multiple)
modifiers (dwm/create-modif-tree [frame-id]
(-> (ctm/empty)
(ctm/change-property :layout-padding layout-padding)
(ctm/change-property :layout-padding-type layout-padding-type)))]
(reset! hover-value val)
(st/emit! (dwm/set-modifiers modifiers)))))))]
[:rect.padding-rect {:x (:x rect-data)
:y (:y rect-data)
:width (:width rect-data)
:height (:height rect-data)
:on-pointer-enter on-pointer-enter
:on-pointer-leave on-pointer-leave
:on-pointer-down on-pointer-down
:on-lost-pointer-capture on-lost-pointer-capture
:on-pointer-move on-pointer-move
:style {:fill (if (or hover? selected?) distance-color "none")
:cursor (when (or hover? selected?)
(if (= (:resize-axis rect-data) :x) (cur/resize-ew 0) (cur/resize-ew 90)))
:opacity (if selected? 0.5 0.25)}}]))
(mf/defc padding-rects [{:keys [frame zoom alt? shift?]}]
(let [frame-id (:id frame)
paddings-selected (mf/deref refs/workspace-paddings-selected)
hover-value (mf/use-var 0)
mouse-pos (mf/use-var nil)
hover (mf/use-var nil)
hover-all? (and (not (nil? @hover)) alt?)
hover-v? (and (or (= @hover :p1) (= @hover :p3)) shift?)
hover-h? (and (or (= @hover :p2) (= @hover :p4)) shift?)
padding (:layout-padding frame)
{:keys [width height x1 x2 y1 y2]} (:selrect frame)
on-pointer-enter (fn [hover-type val]
(reset! hover hover-type)
(reset! hover-value val))
on-pointer-leave #(reset! hover nil)
pill-width (/ flex-display-pill-width zoom)
pill-height (/ flex-display-pill-height zoom)
hover? #(or hover-all?
(and (or (= % :p1) (= % :p3)) hover-v?)
(and (or (= % :p2) (= % :p4)) hover-h?)
(= @hover %))
negate {:p1 (if (:flip-y frame) true false)
:p2 (if (:flip-x frame) true false)
:p3 (if (:flip-y frame) true false)
:p4 (if (:flip-x frame) true false)}
negate (cond-> negate
(= :fix (:layout-item-h-sizing frame)) (assoc :p2 (not (:p2 negate)))
(= :fix (:layout-item-v-sizing frame)) (assoc :p3 (not (:p3 negate))))
padding-rect-data {:p1 {:key (str frame-id "-p1")
:x x1
:y (if (:flip-y frame) (- y2 (:p1 padding)) y1)
:width width
:height (:p1 padding)
:initial-value (:p1 padding)
:resize-type (if (:flip-y frame) :bottom :top)
:resize-axis :y
:resize-negate? (:p1 negate)}
:p2 {:key (str frame-id "-p2")
:x (if (:flip-x frame) x1 (- x2 (:p2 padding)))
:y y1
:width (:p2 padding)
:height height
:initial-value (:p2 padding)
:resize-type :left
:resize-axis :x
:resize-negate? (:p2 negate)}
:p3 {:key (str frame-id "-p3")
:x x1
:y (if (:flip-y frame) y1 (- y2 (:p3 padding)))
:width width
:height (:p3 padding)
:initial-value (:p3 padding)
:resize-type :bottom
:resize-axis :y
:resize-negate? (:p3 negate)}
:p4 {:key (str frame-id "-p4")
:x (if (:flip-x frame) (- x2 (:p4 padding)) x1)
:y y1
:width (:p4 padding)
:height height
:initial-value (:p4 padding)
:resize-type (if (:flip-x frame) :right :left)
:resize-axis :x
:resize-negate? (:p4 negate)}}]
[:g.paddings {:pointer-events "visible"}
(for [[padding-num rect-data] padding-rect-data]
[:& padding-display {:key (:key rect-data)
:frame-id frame-id
:zoom zoom
:hover-all? hover-all?
:hover-v? hover-v?
:hover-h? hover-h?
:padding padding
:mouse-pos mouse-pos
:hover-value hover-value
:padding-num padding-num
:on-pointer-enter (partial on-pointer-enter padding-num (get padding padding-num))
:on-pointer-leave on-pointer-leave
:hover? (hover? padding-num)
:selected? (get paddings-selected padding-num)
:rect-data rect-data}])
(when @hover
[:& flex-display-pill {:height pill-height
:width pill-width
:font-size (/ font-size zoom)
:border-radius (/ flex-display-pill-border-radius zoom)
:color distance-color
:x (:x @mouse-pos)
:y (- (:y @mouse-pos) pill-width)
:value @hover-value}])]))
(mf/defc margin-display [{:keys [shape-id zoom hover-all? hover-v? hover-h? margin-num margin on-pointer-enter on-pointer-leave
rect-data hover? selected? mouse-pos hover-value]}]
(let [resizing? (mf/use-var false)
start (mf/use-var nil)
original-value (mf/use-var 0)
negate? (true? (:resize-negate? rect-data))
axis (:resize-axis rect-data)
on-pointer-down
(mf/use-callback
(mf/deps shape-id margin-num margin)
(fn [event]
(dom/capture-pointer event)
(reset! resizing? true)
(reset! start (dom/get-client-position event))
(reset! original-value (:initial-value rect-data))))
on-lost-pointer-capture
(mf/use-callback
(mf/deps shape-id margin-num margin)
(fn [event]
(dom/release-pointer event)
(reset! resizing? false)
(reset! start nil)
(reset! original-value 0)
(st/emit! (dwm/apply-modifiers))))
on-pointer-move
(mf/use-callback
(mf/deps shape-id margin-num margin)
(fn [event]
(let [pos (dom/get-client-position event)]
(reset! mouse-pos (point->viewport pos))
(when @resizing?
(let [delta (-> (gpt/to-vec @start pos)
(cond-> negate? gpt/negate)
(get axis))
val (int (max (+ @original-value (/ delta zoom)) 0))
layout-item-margin (cond
hover-all? (assoc margin :m1 val :m2 val :m3 val :m4 val)
hover-v? (assoc margin :m1 val :m3 val)
hover-h? (assoc margin :m2 val :m4 val)
:else (assoc margin margin-num val))
layout-item-margin-type (if (= (:m1 margin) (:m2 margin) (:m3 margin) (:m4 margin)) :simple :multiple)
modifiers (dwm/create-modif-tree [shape-id]
(-> (ctm/empty)
(ctm/change-property :layout-item-margin layout-item-margin)
(ctm/change-property :layout-item-margin-type layout-item-margin-type)))]
(reset! hover-value val)
(st/emit! (dwm/set-modifiers modifiers)))))))]
[:rect.margin-rect {:x (:x rect-data)
:y (:y rect-data)
:width (:width rect-data)
:height (:height rect-data)
:on-pointer-enter on-pointer-enter
:on-pointer-leave on-pointer-leave
:on-pointer-down on-pointer-down
:on-lost-pointer-capture on-lost-pointer-capture
:on-pointer-move on-pointer-move
:style {:fill (if (or hover? selected?) warning-color "none")
:cursor (when (or hover? selected?)
(if (= (:resize-axis rect-data) :x) (cur/resize-ew 0) (cur/resize-ew 90)))
:opacity (if selected? 0.5 0.25)}}]))
(mf/defc margin-rects [{:keys [shape frame zoom alt? shift?]}]
(let [shape-id (:id shape)
pill-width (/ flex-display-pill-width zoom)
pill-height (/ flex-display-pill-height zoom)
margins-selected (mf/deref refs/workspace-margins-selected)
hover-value (mf/use-var 0)
mouse-pos (mf/use-var nil)
hover (mf/use-var nil)
hover-all? (and (not (nil? @hover)) alt?)
hover-v? (and (or (= @hover :m1) (= @hover :m3)) shift?)
hover-h? (and (or (= @hover :m2) (= @hover :m4)) shift?)
margin (:layout-item-margin shape)
{:keys [width height x1 x2 y1 y2]} (:selrect shape)
on-pointer-enter (fn [hover-type val]
(reset! hover hover-type)
(reset! hover-value val))
on-pointer-leave #(reset! hover nil)
hover? #(or hover-all?
(and (or (= % :m1) (= % :m3)) hover-v?)
(and (or (= % :m2) (= % :m4)) hover-h?)
(= @hover %))
margin-display-data {:m1 {:key (str shape-id "-m1")
:x x1
:y (if (:flip-y frame) y2 (- y1 (:m1 margin)))
:width width
:height (:m1 margin)
:initial-value (:m1 margin)
:resize-type :top
:resize-axis :y
:resize-negate? (:flip-y frame)}
:m2 {:key (str shape-id "-m2")
:x (if (:flip-x frame) (- x1 (:m2 margin)) x2)
:y y1
:width (:m2 margin)
:height height
:initial-value (:m2 margin)
:resize-type :left
:resize-axis :x
:resize-negate? (:flip-x frame)}
:m3 {:key (str shape-id "-m3")
:x x1
:y (if (:flip-y frame) (- y1 (:m3 margin)) y2)
:width width
:height (:m3 margin)
:initial-value (:m3 margin)
:resize-type :top
:resize-axis :y
:resize-negate? (:flip-y frame)}
:m4 {:key (str shape-id "-m4")
:x (if (:flip-x frame) x2 (- x1 (:m4 margin)))
:y y1
:width (:m4 margin)
:height height
:initial-value (:m4 margin)
:resize-type :left
:resize-axis :x
:resize-negate? (:flip-x frame)}}]
[:g.margins {:pointer-events "visible"}
(for [[margin-num rect-data] margin-display-data]
[:& margin-display
{:key (:key rect-data)
:shape-id shape-id
:zoom zoom
:hover-all? hover-all?
:hover-v? hover-v?
:hover-h? hover-h?
:margin-num margin-num
:margin margin
:on-pointer-enter (partial on-pointer-enter margin-num (get margin margin-num))
:on-pointer-leave on-pointer-leave
:rect-data rect-data
:hover? (hover? margin-num)
:selected? (get margins-selected margin-num)
:mouse-pos mouse-pos
:hover-value hover-value}])
(when @hover
[:& flex-display-pill {:height pill-height
:width pill-width
:font-size (/ font-size zoom)
:border-radius (/ flex-display-pill-border-radius zoom)
:color warning-color
:x (:x @mouse-pos)
:y (- (:y @mouse-pos) pill-width)
:value @hover-value}])]))
(mf/defc gap-display [{:keys [frame-id zoom gap-type gap on-pointer-enter on-pointer-leave
rect-data hover? selected? mouse-pos hover-value]}]
(let [resizing (mf/use-var nil)
start (mf/use-var nil)
original-value (mf/use-var 0)
negate? (:resize-negate? rect-data)
axis (:resize-axis rect-data)
on-pointer-down
(mf/use-callback
(mf/deps frame-id gap-type gap)
(fn [event]
(dom/capture-pointer event)
(reset! resizing gap-type)
(reset! start (dom/get-client-position event))
(reset! original-value (:initial-value rect-data))))
on-lost-pointer-capture
(mf/use-callback
(mf/deps frame-id gap-type gap)
(fn [event]
(dom/release-pointer event)
(reset! resizing nil)
(reset! start nil)
(reset! original-value 0)
(st/emit! (dwm/apply-modifiers))))
on-pointer-move
(mf/use-callback
(mf/deps frame-id gap-type gap)
(fn [event]
(let [pos (dom/get-client-position event)]
(reset! mouse-pos (point->viewport pos))
(when (= @resizing gap-type)
(let [delta (-> (gpt/to-vec @start pos)
(cond-> negate? gpt/negate)
(get axis))
val (int (max (+ @original-value (/ delta zoom)) 0))
layout-gap (assoc gap gap-type val)
modifiers (dwm/create-modif-tree [frame-id] (ctm/change-property (ctm/empty) :layout-gap layout-gap))]
(reset! hover-value val)
(st/emit! (dwm/set-modifiers modifiers)))))))]
[:rect.gap-rect {:x (:x rect-data)
:y (:y rect-data)
:width (:width rect-data)
:height (:height rect-data)
:on-pointer-enter on-pointer-enter
:on-pointer-leave on-pointer-leave
:on-pointer-down on-pointer-down
:on-lost-pointer-capture on-lost-pointer-capture
:on-pointer-move on-pointer-move
:style {:fill (if (or hover? selected?) distance-color "none")
:cursor (when (or hover? selected?)
(if (= (:resize-axis rect-data) :x) (cur/resize-ew 0) (cur/resize-ew 90)))
:opacity (if selected? 0.5 0.25)}}]))
(mf/defc gap-rects [{:keys [frame zoom]}]
(let [frame-id (:id frame)
saved-dir (:layout-flex-dir frame)
is-col? (or (= :column saved-dir) (= :column-reverse saved-dir))
flip-x (:flip-x frame)
flip-y (:flip-y frame)
pill-width (/ flex-display-pill-width zoom)
pill-height (/ flex-display-pill-height zoom)
workspace-modifiers (mf/deref refs/workspace-modifiers)
gap-selected (mf/deref refs/workspace-gap-selected)
hover (mf/use-var nil)
hover-value (mf/use-var 0)
mouse-pos (mf/use-var nil)
padding (:layout-padding frame)
gap (:layout-gap frame)
{:keys [width height x1 y1]} (:selrect frame)
on-pointer-enter (fn [hover-type val]
(reset! hover hover-type)
(reset! hover-value val))
on-pointer-leave #(reset! hover nil)
negate {:column-gap (if flip-x true false)
:row-gap (if flip-y true false)}
objects (wsh/lookup-page-objects @st/state)
children (->> (cph/get-immediate-children objects frame-id)
(remove :layout-item-absolute)
(remove :hidden))
children-to-display (if (or (= :row-reverse saved-dir)
(= :column-reverse saved-dir))
(drop-last children)
(rest children))
children-to-display (->> children-to-display
(map #(gsh/transform-shape % (get-in workspace-modifiers [(:id %) :modifiers]))))
wrap-blocks
(let [block-children (->> children
(map #(vector (gpo/parent-coords-bounds (:points %) (:points frame)) %)))
layout-data (gsl/calc-layout-data frame block-children (:points frame))
layout-bounds (:layout-bounds layout-data)
xv #(gpo/start-hv layout-bounds %)
yv #(gpo/start-vv layout-bounds %)]
(for [{:keys [start-p line-width line-height layout-gap-row layout-gap-col num-children]} (:layout-lines layout-data)]
(let [line-width (if is-col? line-width (+ line-width (* (dec num-children) layout-gap-row)))
line-height (if is-col? (+ line-height (* (dec num-children) layout-gap-col)) line-height)
end-p (-> start-p (gpt/add (xv line-width)) (gpt/add (yv line-height)))]
{:x1 (min (:x start-p) (:x end-p))
:y1 (min (:y start-p) (:y end-p))
:x2 (max (:x start-p) (:x end-p))
:y2 (max (:y start-p) (:y end-p))})))
block-contains
(fn [x y block]
(if is-col?
(<= (:x1 block) x (:x2 block))
(<= (:y1 block) y (:y2 block))))
get-container-block
(fn [shape]
(let [selrect (:selrect shape)
x (/ (+ (:x1 selrect) (:x2 selrect)) 2)
y (/ (+ (:y1 selrect) (:y2 selrect)) 2)]
(->> wrap-blocks
(filter #(block-contains x y %))
first)))
create-cgdd
(fn [shape]
(let [block (get-container-block shape)
x (if flip-x
(- (:x1 (:selrect shape))
(get-in shape [:layout-item-margin :m2])
(:column-gap gap))
(+ (:x2 (:selrect shape)) (get-in shape [:layout-item-margin :m2])))
y (:y1 block)
h (- (:y2 block) (:y1 block))]
{:x x
:y y
:height h
:width (:column-gap gap)
:initial-value (:column-gap gap)
:resize-type :left
:resize-axis :x
:resize-negate? (:column-gap negate)
:gap-type (if is-col? :row-gap :column-gap)}))
create-cgdd-block
(fn [block]
(let [x (if flip-x
(- (:x1 block) (:column-gap gap))
(:x2 block))
y (if flip-y
(+ y1 (:p3 padding))
(+ y1 (:p1 padding)))
h (- height (+ (:p1 padding) (:p3 padding)))]
{:x x
:y y
:width (:column-gap gap)
:height h
:initial-value (:column-gap gap)
:resize-type :left
:resize-axis :x
:resize-negate? (:column-gap negate)
:gap-type (if is-col? :column-gap :row-gap)}))
create-rgdd
(fn [shape]
(let [block (get-container-block shape)
x (:x1 block)
y (if flip-y
(- (:y1 (:selrect shape))
(get-in shape [:layout-item-margin :m3])
(:row-gap gap))
(+ (:y2 (:selrect shape)) (get-in shape [:layout-item-margin :m3])))
w (- (:x2 block) (:x1 block))]
{:x x
:y y
:width w
:height (:row-gap gap)
:initial-value (:row-gap gap)
:resize-type :bottom
:resize-axis :y
:resize-negate? (:row-gap negate)
:gap-type (if is-col? :row-gap :column-gap)}))
create-rgdd-block
(fn [block]
(let [x (if flip-x
(+ x1 (:p2 padding))
(+ x1 (:p4 padding)))
y (if flip-y
(- (:y1 block) (:row-gap gap))
(:y2 block))
w (- width (+ (:p2 padding) (:p4 padding)))]
{:x x
:y y
:width w
:height (:row-gap gap)
:initial-value (:row-gap gap)
:resize-type :bottom
:resize-axis :y
:resize-negate? (:row-gap negate)
:gap-type (if is-col? :column-gap :row-gap)}))
display-blocks (if is-col?
(->> (drop-last wrap-blocks)
(map create-cgdd-block))
(->> (drop-last wrap-blocks)
(map create-rgdd-block)))
display-children (if is-col?
(->> children-to-display
(map create-rgdd))
(->> children-to-display
(map create-cgdd)))]
[:g.gaps {:pointer-events "visible"}
[:*
(for [[index display-item] (d/enumerate (concat display-blocks display-children))]
(let [gap-type (:gap-type display-item)]
[:& gap-display {:key (str frame-id index)
:frame-id frame-id
:zoom zoom
:gap-type gap-type
:gap gap
:on-pointer-enter (partial on-pointer-enter gap-type (get gap gap-type))
:on-pointer-leave on-pointer-leave
:rect-data display-item
:hover? (= @hover gap-type)
:selected? (= gap-selected gap-type)
:mouse-pos mouse-pos
:hover-value hover-value}]))]
(when @hover
[:& flex-display-pill {:height pill-height
:width pill-width
:font-size (/ font-size zoom)
:border-radius (/ flex-display-pill-border-radius zoom)
:color distance-color
:x (:x @mouse-pos)
:y (- (:y @mouse-pos) pill-width)
:value @hover-value}])]))
(mf/defc padding
[{:keys [frame zoom alt? shift?]}]
(when frame
[:g.measurement-gaps {:pointer-events "none"}
[:g.hover-shapes
[:& padding-rects {:frame frame :zoom zoom :alt? alt? :shift? shift?}]]]))
(mf/defc gap
[{:keys [frame zoom]}]
(when frame
[:g.measurement-gaps {:pointer-events "none"}
[:g.hover-shapes
[:& gap-rects {:frame frame :zoom zoom}]]]))
(mf/defc margin
[{:keys [shape parent zoom alt? shift?]}]
(when shape
[:g.measurement-gaps {:pointer-events "none"}
[:g.hover-shapes
[:& margin-rects {:shape shape :frame parent :zoom zoom :alt? alt? :shift? shift?}]]]))