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✨ Changes to snap to pixel

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This commit is contained in:
alonso.torres 2023-01-17 23:20:54 +01:00
parent 0d96b5b798
commit c18d3c66a8
12 changed files with 75 additions and 57 deletions
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8
common/src/app/common/geom/point.cljc
View file

@ -274,12 +274,12 @@
(Point. (mth/precision (dm/get-prop pt :x) decimals)
(mth/precision (dm/get-prop pt :y) decimals))))
(defn half-round
(defn round-step
"Round the coordinates to the closest half-point"
[pt]
[pt step]
(assert (point? pt) "expected point instance")
(Point. (mth/half-round (dm/get-prop pt :x))
(mth/half-round (dm/get-prop pt :y))))
(Point. (mth/round (dm/get-prop pt :x) step)
(mth/round (dm/get-prop pt :y) step)))
(defn transform
"Transform a point applying a matrix transformation."

21
common/src/app/common/geom/shapes/modifiers.cljc
View file

@ -382,15 +382,24 @@
result))
(defn set-objects-modifiers
([modif-tree objects ignore-constraints snap-pixel?]
(set-objects-modifiers nil modif-tree objects ignore-constraints snap-pixel?))
([modif-tree objects]
(set-objects-modifiers modif-tree objects nil))
([old-modif-tree modif-tree objects ignore-constraints snap-pixel?]
([modif-tree objects params]
(set-objects-modifiers nil modif-tree objects params))
([old-modif-tree modif-tree objects
{:keys [ignore-constraints snap-pixel? snap-precision]
:or {ignore-constraints false snap-pixel? false snap-precision 1}}]
(let [objects (-> objects
(cond-> (some? old-modif-tree)
(apply-structure-modifiers old-modif-tree))
(apply-structure-modifiers modif-tree))
modif-tree
(cond-> modif-tree
snap-pixel? (gpp/adjust-pixel-precision objects snap-precision))
bounds (d/lazy-map (keys objects) #(dm/get-in objects [% :points]))
bounds (cond-> bounds
(some? old-modif-tree)
@ -417,11 +426,7 @@
modif-tree
(if old-modif-tree
(merge-modif-tree old-modif-tree modif-tree)
modif-tree)
modif-tree
(cond-> modif-tree
snap-pixel? (gpp/adjust-pixel-precision objects))]
modif-tree)]
;;#?(:cljs
;; (.log js/console ">result" (modif->js modif-tree objects)))

20
common/src/app/common/geom/shapes/pixel_precision.cljc
View file

@ -18,7 +18,7 @@
[app.common.types.modifiers :as ctm]))
(defn size-pixel-precision
[modifiers shape points]
[modifiers shape points precision]
(let [origin (gpo/origin points)
curr-width (gpo/width-points points)
curr-height (gpo/height-points points)
@ -29,8 +29,8 @@
vertical-line? (and path? (<= curr-width 0.01))
horizontal-line? (and path? (<= curr-height 0.01))
target-width (if vertical-line? curr-width (max 1 (mth/round curr-width)))
target-height (if horizontal-line? curr-height (max 1 (mth/round curr-height)))
target-width (if vertical-line? curr-width (max 1 (mth/round curr-width precision)))
target-height (if horizontal-line? curr-height (max 1 (mth/round curr-height precision)))
ratio-width (/ target-width curr-width)
ratio-height (/ target-height curr-height)
@ -39,23 +39,23 @@
(ctm/resize scalev origin transform transform-inverse {:precise? true}))))
(defn position-pixel-precision
[modifiers _ points]
[modifiers _ points precision]
(let [bounds (gpr/bounds->rect points)
corner (gpt/point bounds)
target-corner (gpt/round corner)
target-corner (gpt/round-step corner precision)
deltav (gpt/to-vec corner target-corner)]
(ctm/move modifiers deltav)))
(defn set-pixel-precision
"Adjust modifiers so they adjust to the pixel grid"
[modifiers shape]
[modifiers shape precision]
(let [points (-> shape :points (gco/transform-points (ctm/modifiers->transform modifiers)))
has-resize? (not (ctm/only-move? modifiers))
[modifiers points]
(let [modifiers
(cond-> modifiers
has-resize? (size-pixel-precision shape points))
has-resize? (size-pixel-precision shape points precision))
points
(if has-resize?
@ -63,16 +63,16 @@
(gco/transform-points (ctm/modifiers->transform modifiers)) )
points)]
[modifiers points])]
(position-pixel-precision modifiers shape points)))
(position-pixel-precision modifiers shape points precision)))
(defn adjust-pixel-precision
[modif-tree objects]
[modif-tree objects precision]
(let [update-modifiers
(fn [modif-tree shape]
(let [modifiers (dm/get-in modif-tree [(:id shape) :modifiers])]
(cond-> modif-tree
(ctm/has-geometry? modifiers)
(update-in [(:id shape) :modifiers] set-pixel-precision shape))))]
(update-in [(:id shape) :modifiers] set-pixel-precision shape precision))))]
(->> (keys modif-tree)
(map (d/getf objects))

17
common/src/app/common/math.cljc
View file

@ -104,15 +104,16 @@
(defn round
"Returns the value of a number rounded to
the nearest integer."
[v]
#?(:cljs (js/Math.round v)
:clj (Math/round (float v))))
the nearest integer.
If given step rounds to the next closest step, for example:
(round 13.4 0.5) => 13.5
(round 13.4 0.3) => 13.3"
([v step]
(* (round (/ v step)) step))
(defn half-round
"Returns a value rounded to the next point or half point"
[v]
(/ (round (* v 2)) 2))
([v]
#?(:cljs (js/Math.round v)
:clj (Math/round (float v)))))
(defn ceil
"Returns the smallest integer greater than

2
common/test/common_tests/geom_point_test.cljc
View file

@ -203,7 +203,7 @@
(t/deftest halft-round-point
(let [p1 (gpt/point 1.34567 3.34567)
rs (gpt/half-round p1)]
rs (gpt/round-step p1 0.5)]
(t/is (gpt/point? rs))
(t/is (mth/close? 1.5 (:x rs)))
(t/is (mth/close? 3.5 (:y rs)))))

2
frontend/src/app/main/constants.cljs
View file

@ -190,3 +190,5 @@
{:name "YouTube thumb"
:width 1280
:height 720}])
(def zoom-half-pixel-precision 8)

8
frontend/src/app/main/data/workspace/drawing/box.cljs
View file

@ -16,6 +16,7 @@
[app.common.types.shape-tree :as ctst]
[app.common.types.shape.layout :as ctl]
[app.common.uuid :as uuid]
[app.main.constants :refer [zoom-half-pixel-precision]]
[app.main.data.workspace.drawing.common :as common]
[app.main.data.workspace.state-helpers :as wsh]
[app.main.snap :as snap]
@ -70,14 +71,15 @@
(let [stoper? #(or (ms/mouse-up? %) (= % :interrupt))
stoper (rx/filter stoper? stream)
layout (get state :workspace-layout)
zoom (get-in state [:workspace-local :zoom] 1)
snap-pixel? (contains? layout :snap-pixel-grid)
initial (cond-> @ms/mouse-position snap-pixel? gpt/round)
snap-precision (if (>= zoom zoom-half-pixel-precision) 0.5 1)
initial (cond-> @ms/mouse-position snap-pixel? (gpt/round-step snap-precision))
page-id (:current-page-id state)
objects (wsh/lookup-page-objects state page-id)
focus (:workspace-focus-selected state)
zoom (get-in state [:workspace-local :zoom] 1)
fid (ctst/top-nested-frame objects initial)
layout? (ctl/layout? objects fid)
@ -119,7 +121,7 @@
(rx/map #(conj current %)))))
(rx/map
(fn [[_ shift? point]]
#(update-drawing % initial (cond-> point snap-pixel? gpt/round) shift?)))))
#(update-drawing % initial (cond-> point snap-pixel? (gpt/round-step snap-precision)) shift?)))))
(rx/take-until stoper))
(->> (rx/of (common/handle-finish-drawing))

5
frontend/src/app/main/data/workspace/media.cljs
View file

@ -8,6 +8,7 @@
(:require
[app.common.exceptions :as ex]
[app.common.logging :as log]
[app.common.math :as mth]
[app.common.pages.changes-builder :as pcb]
[app.common.spec :as us]
[app.common.types.container :as ctn]
@ -52,8 +53,8 @@
shape {:name name
:width width
:height height
:x (- x (/ width 2))
:y (- y (/ height 2))
:x (mth/round (- x (/ width 2)))
:y (mth/round (- y (/ height 2)))
:metadata {:width width
:height height
:mtype mtype

15
frontend/src/app/main/data/workspace/modifiers.cljs
View file

@ -17,6 +17,7 @@
[app.common.spec :as us]
[app.common.types.modifiers :as ctm]
[app.common.types.shape.layout :as ctl]
[app.main.constants :refer [zoom-half-pixel-precision]]
[app.main.data.workspace.changes :as dch]
[app.main.data.workspace.comments :as-alias dwcm]
[app.main.data.workspace.guides :as-alias dwg]
@ -244,12 +245,15 @@
(wsh/lookup-page-objects state)
snap-pixel?
(and (not ignore-snap-pixel) (contains? (:workspace-layout state) :snap-pixel-grid))]
(and (not ignore-snap-pixel) (contains? (:workspace-layout state) :snap-pixel-grid))
zoom (dm/get-in state [:workspace-local :zoom])
snap-precision (if (>= zoom zoom-half-pixel-precision) 0.5 1)]
(as-> objects $
(apply-text-modifiers $ (get state :workspace-text-modifier))
;;(apply-path-modifiers $ (get-in state [:workspace-local :edit-path]))
(gsh/set-objects-modifiers modif-tree $ ignore-constraints snap-pixel?)))))
(gsh/set-objects-modifiers modif-tree $ {:ignore-constraints ignore-constraints :snap-pixel? snap-pixel? :snap-precision snap-precision})))))
(defn- calculate-update-modifiers
[old-modif-tree state ignore-constraints ignore-snap-pixel modif-tree]
@ -259,10 +263,13 @@
snap-pixel?
(and (not ignore-snap-pixel) (contains? (:workspace-layout state) :snap-pixel-grid))
zoom (dm/get-in state [:workspace-local :zoom])
snap-precision (if (>= zoom zoom-half-pixel-precision) 0.5 1)
objects
(-> objects
(apply-text-modifiers (get state :workspace-text-modifier)))]
(gsh/set-objects-modifiers old-modif-tree modif-tree objects ignore-constraints snap-pixel?)))
(gsh/set-objects-modifiers old-modif-tree modif-tree objects {:ignore-constraints ignore-constraints :snap-pixel? snap-pixel? :snap-precision snap-precision})))
(defn update-modifiers
([modif-tree]
@ -312,7 +319,7 @@
modif-tree
(-> (build-modif-tree ids objects get-modifier)
(gsh/set-objects-modifiers objects false false))]
(gsh/set-objects-modifiers objects))]
(assoc state :workspace-modifiers modif-tree))))))

4
frontend/src/app/main/data/workspace/path/streams.cljs
View file

@ -8,6 +8,7 @@
(:require
[app.common.geom.point :as gpt]
[app.common.geom.shapes.path :as upg]
[app.main.constants :refer [zoom-half-pixel-precision]]
[app.main.data.workspace.path.state :as state]
[app.main.snap :as snap]
[app.main.store :as st]
@ -17,7 +18,6 @@
[potok.core :as ptk]))
(defonce drag-threshold 5)
(def zoom-half-pixel-precision 8)
(defn dragging? [start zoom]
(fn [current]
@ -36,7 +36,7 @@
position
(>= zoom zoom-half-pixel-precision)
(gpt/half-round position)
(gpt/round-step position 0.5)
:else
(gpt/round position))))

17
frontend/src/app/main/data/workspace/svg_upload.cljs
View file

@ -11,6 +11,7 @@
[app.common.geom.matrix :as gmt]
[app.common.geom.point :as gpt]
[app.common.geom.shapes :as gsh]
[app.common.math :as mth]
[app.common.pages.changes-builder :as pcb]
[app.common.pages.helpers :as cph]
[app.common.spec :as us :refer [max-safe-int min-safe-int]]
@ -477,15 +478,17 @@
(rx/reduce (fn [acc [url image]] (assoc acc url image)) {})))
(defn create-svg-shapes
[svg-data {:keys [x y] :as position} objects frame-id parent-id selected center?]
[svg-data {:keys [x y]} objects frame-id parent-id selected center?]
(try
(let [[vb-x vb-y vb-width vb-height] (svg-dimensions svg-data)
x (if center?
(- x vb-x (/ vb-width 2))
x)
y (if center?
(- y vb-y (/ vb-height 2))
y)
x (mth/round
(if center?
(- x vb-x (/ vb-width 2))
x))
y (mth/round
(if center?
(- y vb-y (/ vb-height 2))
y))
unames (ctst/retrieve-used-names objects)

13
frontend/src/app/main/data/workspace/transforms.cljs
View file

@ -240,14 +240,12 @@
ptk/UpdateEvent
(update [_ state]
(let [objects (wsh/lookup-page-objects state)
snap-pixel? (and (contains? (:workspace-layout state) :snap-pixel-grid)
(int? value))
get-modifier
(fn [shape] (ctm/change-dimensions-modifiers shape attr value))
modif-tree
(-> (dwm/build-modif-tree ids objects get-modifier)
(gsh/set-objects-modifiers objects false snap-pixel?))]
(gsh/set-objects-modifiers objects))]
(assoc state :workspace-modifiers modif-tree)))
@ -265,14 +263,13 @@
ptk/UpdateEvent
(update [_ state]
(let [objects (wsh/lookup-page-objects state)
snap-pixel? (contains? (get state :workspace-layout) :snap-pixel-grid)
get-modifier
(fn [shape] (ctm/change-orientation-modifiers shape orientation))
modif-tree
(-> (dwm/build-modif-tree ids objects get-modifier)
(gsh/set-objects-modifiers objects false snap-pixel?))]
(gsh/set-objects-modifiers objects))]
(assoc state :workspace-modifiers modif-tree)))
@ -623,7 +620,7 @@
(->> move-events
(rx/scan #(gpt/add %1 mov-vec) (gpt/point 0 0))
(rx/map #(dwm/create-modif-tree selected (ctm/move-modifiers %)))
(rx/map (partial dwm/set-modifiers))
(rx/map #(dwm/set-modifiers % false true))
(rx/take-until stopper))
(rx/of (nudge-selected-shapes direction shift?)))
@ -669,11 +666,12 @@
cpos (gpt/point (:x bbox) (:y bbox))
pos (gpt/point (or (:x position) (:x bbox))
(or (:y position) (:y bbox)))
delta (gpt/subtract pos cpos)
modif-tree (dwm/create-modif-tree [id] (ctm/move-modifiers delta))]
(rx/of (dwm/set-modifiers modif-tree)
(rx/of (dwm/set-modifiers modif-tree false true)
(dwm/apply-modifiers))))))
(defn- move-shapes-to-frame
@ -688,7 +686,6 @@
shapes (->> ids (cph/clean-loops objects) (keep lookup))
moving-shapes
(cond->> shapes
(not layout?)