Completed color picker, value editor, desktop layout.

package.json

@@ -55,9 +55,9 @@
       "^react$",
       "^react-dom(.*)$",
       "^react(.*)$",
-      "^@(?!(components|hooks|providers|/))(.*)$",
+      "^@(?!(/))(.*)$",
       "^(?!@|[.])(.*)$",
-      "^@(/|components|hooks|providers)(.*)$",
+      "^@(/)(.*)$",
       "^[./]"
     ],
     "importOrderSeparation": true,

src/App.module.css

@@ -1,7 +1,42 @@
 .appWrapper {
+  background-color: white;
   height: 100%;
   width: 100%;
+  max-width: 1200px;
   overflow: hidden;
+  margin: 0 auto;
+  box-shadow: 0 0 40px #7a7a7a;
+  border-left: 2px solid #7a7a7a;
+  border-right: 2px solid #7a7a7a;
+}
+
+.appHeader {
+  height: 40px;
+  display: flex;
+  align-items: baseline;
+  border-bottom: 2px solid #7a7a7a;
+  padding: 20px 30px 12px;
+}
+
+.appHeader .title {
+  /* Typography */
+  font-family: "Inter", "Roboto", sans-serif;
+  font-size: 2rem;
+  font-weight: 400;
+  letter-spacing: 0.4rem;
+  text-transform: uppercase;
+  line-height: 1;
+}
+
+.appHeader .subtitle {
+  margin-left: 1.5rem;
+  font-family: "Inter", "Roboto", sans-serif;
+  font-style: italic;
+  font-size: 1rem;
+  font-weight: 300;
+  letter-spacing: 0.08rem;
+  line-height: 1;
+  color: #7a7a7a;
 }
 
 .mobileContent,
@@ -17,12 +52,7 @@
   scrollbar-width: none;
 }
 
-/* Large */
-@media (min-width: 992px),
-  (min-width: 568px) and (max-width: 991px) and (orientation: portrait) {
 .appWrapper {
-    max-width: 1200px;
-    margin: 0 auto;
 }
 
 .mobileContent {
@@ -30,18 +60,24 @@
 }
 
 .mainContent {
-    display: flex;
+  display: grid;
+  grid-template-columns: 1fr 2fr;
 }
 
 .firstZone {
-    flex: 1;
+  display: flex;
+  flex-direction: column;
+  border-right: 2px solid #7a7a7a;
 }
 
 .secondZone {
-    flex: 1;
+  padding: 40px;
+  color: #555;
+  font-style: italic;
 }
 
 .colorPickerWrapper {
+  border-bottom: 2px solid #7a7a7a;
 }
 
 .colorValuesWrapper {
@@ -52,111 +88,16 @@
 
 .paletteLibraryWrapper {
 }
+
+/* Large */
+@media (min-width: 992px),
+  (min-width: 568px) and (max-width: 991px) and (orientation: portrait) {
 }
 
 /* Landscape Phone */
 @media (min-width: 568px) and (max-width: 991px) and (orientation: landscape) {
-  .appWrapper {
-  }
-
-  .mainContent,
-  .mobileTopNav {
-    display: none;
-  }
-
-  .mobileContent {
-    display: flex;
-  }
-
-  .mobileLeftNav {
-  }
-
-  .mobileRightNav {
-  }
-
-  .mobileFirstZone {
-    flex: 1;
-  }
-
-  .mobileSecondZone {
-    flex: 1;
-  }
-
-  .tabWrapper {
-    max-height: 100%;
-    overflow-y: scroll;
-    scroll-snap-type: y mandatory;
-  }
-
-  .tabWrapper .tab {
-    scroll-snap-align: start;
-  }
-
-  .colorPickerWrapper {
-  }
-
-  .colorValuesWrapper {
-  }
-
-  .paletteEditorWrapper {
-  }
-
-  .paletteLibraryWrapper {
-  }
 }
 
 /* Portrait Phone */
 @media (max-width: 567px) {
-  .appWrapper {
-  }
-
-  .mainContent,
-  .mobileRightNav,
-  .mobileLeftNav {
-    display: none;
-  }
-
-  .mobileContent {
-  }
-
-  .mobileTopNav {
-    display: flex;
-  }
-
-  .leftMenuButton {
-    margin-right: auto;
-  }
-
-  .rightMenuButton {
-    margin-left: auto;
-  }
-
-  .mobileFirstZone {
-  }
-
-  .mobileSecondZone {
-  }
-
-  .tabWrapper {
-    display: flex;
-    overflow-x: scroll;
-    scroll-snap-type: x mandatory;
-  }
-
-  .tabWrapper .tab {
-    min-width: 100vw;
-    scroll-snap-align: start;
-  }
-
-  .colorPickerWrapper {
-  }
-
-  .colorValuesWrapper {
-  }
-
-  .paletteEditorWrapper {
-  }
-
-  .paletteLibraryWrapper {
-  }
 }

src/App.tsx

@@ -1,14 +1,16 @@
-import { useReducer, useState } from "react";
+import { useState } from "react";
 
 import clsx from "clsx";
+import { Color } from "colorlib";
 
-import ColorPicker from "@components/ColorPicker/ColorPicker";
+import ColorPicker from "@/components/ColorPicker/ColorPicker";
-import ColorValues from "@components/ColorValues/ColorValues";
+import ColorValues from "@/components/ColorValues/ColorValues";
-import { LeftMenu, RightMenu } from "@components/SideMenu";
+import { LeftMenu, RightMenu } from "@/components/SideMenu";
-import { useMediaQuery } from "@providers/hooks";
+import { useMediaQuery } from "@/providers/hooks";
-import { useSelectedColor } from "@providers/hooks";
+import { useSelectedColor } from "@/providers/hooks";
 
 import styles from "./App.module.css";
+import { formatCssRgb } from "./util";
 
 // Menu Button Components
 
@@ -106,7 +108,7 @@ function MobileFirstZone() {
           aria-roledescription="slide"
           aria-label="Color Picker"
         >
-          <ColorPicker />
+          <ColorPicker color={selectedColor} actions={selectedColorActions} />
         </div>
         <div
           className={clsx(styles.tab, styles.colorValuesWrapper)}
@@ -191,13 +193,17 @@ function MobileContent({
 
 // Desktop Layout Components
 
+function TitleZone() {
+  return <section className={styles.TitleZone}></section>;
+}
+
 function FirstZone() {
   const { selectedColor, selectedColorActions } = useSelectedColor();
 
   return (
     <section className={styles.firstZone} aria-label="Color tools">
       <div className={styles.colorPickerWrapper} aria-label="Color picker">
-        <ColorPicker />
+        <ColorPicker color={selectedColor} actions={selectedColorActions} />
       </div>
 
       <div className={styles.colorValuesWrapper} aria-label="Color values">
@@ -210,6 +216,7 @@ function FirstZone() {
 function SecondZone() {
   return (
     <section className={styles.secondZone} aria-label="Palette tools">
+      Palette Creator Coming Soon.
       <div
         className={styles.paletteEditorWrapper}
         aria-label="Palette editor"
@@ -224,10 +231,16 @@ function SecondZone() {
 
 function DesktopContent() {
   return (
+    <>
+      <header className={styles.appHeader}>
+        <span className={styles.title}>LUMINANCE</span>
+        <span className={styles.subtitle}>A color picker for humans.</span>
+      </header>
       <main className={styles.mainContent}>
         <FirstZone />
         <SecondZone />
       </main>
+    </>
   );
 }
 
@@ -236,9 +249,35 @@ function DesktopContent() {
 function App() {
   const [isRightMenuOpen, setIsRightMenuOpen] = useState(false);
   const [isLeftMenuOpen, setIsLeftMenuOpen] = useState(false);
-  const { isDesktop } = useMediaQuery();
+  // const { isDesktop } = useMediaQuery();
+  const isDesktop = true;
+
+  const lum = 0.75;
+  const chr = 0.8;
+  const steps = 8;
+
+  const colors = Array.from({ length: steps }, (_, index) => {
+    const hue = (index * 360) / (steps - 1);
+    return Color.from_hcl(hue, chr, lum);
+  });
+
+  const colorGradient = colors
+    .map((color, index) => {
+      const colorString = formatCssRgb(color.hex);
+      const percentage = (index / (colors.length - 1)) * 100;
+      return `${colorString} ${percentage}%`;
+    })
+    .join(", ");
 
   return (
+    <div
+      className={styles.background}
+      style={{
+        width: "100%",
+        height: "100%",
+        background: `linear-gradient(180deg, ${colorGradient})`,
+      }}
+    >
       <div className={styles.appWrapper} role="application">
         {!isDesktop && (
           <MobileContent
@@ -251,6 +290,7 @@ function App() {
 
         {isDesktop && <DesktopContent />}
       </div>
+    </div>
   );
 }
 

src/components/ColorPicker/ColorPicker.module.css

@@ -1,36 +1,110 @@
 .container {
-  width: 100%;
+  padding: 40px;
-  height: 100%;
+  display: grid;
-  display: flex;
+  grid-template-columns: 25px 1fr 25px;
-  align-items: center;
+  grid-template-rows: 50px 1fr 25px;
-  justify-content: center;
+  grid-template-areas:
-  flex-direction: column;
+    ". preview ."
+    "leftGrip square rightGrip"
+    ". bottomGrip ."
+    ". bar .";
 }
-
 .pickerSquare {
-  flex: 1;
+  grid-area: square;
+  position: relative;
+  aspect-ratio: 1/1;
+  border: 2px solid #7a7a7a;
 }
 
 .pickerBar {
-  flex: 1;
+  grid-area: bar;
+  position: relative;
+  height: 25px;
+  margin-top: 15px;
+  border: 2px solid #7a7a7a;
 }
 
-/* Large - Landscape Tablets / Desktops */
+.verticalGripLeft {
-/* Medium - Portrait Tablets */
+  grid-area: leftGrip;
-/* Horizontal layout, vertically scrolling picker and palette content */
-@media (min-width: 992px),
-  (min-width: 568px) and (max-width: 991px) and (orientation: portrait) {
 }
 
-/* Medium - Landscape Phones */
+.verticalGripRight {
-/* Horizontal layout, side menu, vertical tabbed picker */
+  grid-area: rightGrip;
-@media (min-width: 568px) and (max-width: 991px) and (orientation: landscape) {
-  .container {
-    flex-direction: row;
-  }
 }
 
-/* Small - Portrait Phones*/
+.horizontalGrip {
-/* Vertical layout, side menu, horizontal tabbed picker */
+  grid-area: bottomGrip;
-@media (max-width: 567px) {
+}
+
+/* Color Square */
+.colorSquareWrapper {
+  height: 100%;
+  width: 100%;
+}
+
+.colorSquare {
+  cursor: crosshair;
+}
+
+/* Color Bar */
+.colorBarWrapper {
+  height: 100%;
+  width: 100%;
+}
+
+.colorBar {
+  cursor: crosshair;
+}
+
+/* Crosshairs */
+.crosshairWrapper {
+  position: absolute;
+  top: 0;
+  right: 0;
+  left: 0;
+  bottom: 0;
+  pointer-events: none;
+}
+
+.crosshair {
+  position: absolute;
+  transition:
+    background-color 400ms,
+    box-shadow 400ms;
+  pointer-events: none;
+}
+
+.crossEye {
+  position: absolute;
+  width: 9px;
+  height: 9px;
+  z-index: 2;
+  border-radius: 9px;
+  border-width: 2px;
+  border-style: solid;
+  transition:
+    border-color 350ms,
+    box-shadow 400ms;
+  pointer-events: none;
+}
+
+/* Square Grips */
+.gripSlider {
+  position: relative;
+  width: 100%;
+  height: 100%;
+}
+
+.grip {
+  position: absolute;
+  width: 0;
+  height: 0;
+}
+
+/* Preview */
+
+.preview {
+  grid-area: preview;
+  margin-bottom: 15px;
+  border: 2px solid #7a7a7a;
 }

src/components/ColorPicker/ColorPicker.tsx

@@ -1,10 +1,107 @@
-import styles from "./ColorPicker.module.css";
+import { useEffect, useRef, useState } from "react";
+
+import * as colorlib from "colorlib";
+
+import type { ColorActions } from "@/hooks/color";
+import { useResize } from "@/hooks/window";
+import { Direction } from "@/types";
+import type { CartesianSpace } from "@/types";
+import { formatCssRgb, setMeasurements } from "@/util";
+
+import ColorBar from "./ColorBar";
+import styles from "./ColorPicker.module.css";
+import ColorSquare from "./ColorSquare";
+import { BarCrosshair, SquareCrosshair } from "./Crosshair";
+import GripSlider from "./GripSlider";
+
+function ColorPicker({
+  color,
+  actions,
+}: {
+  color: colorlib.Color;
+  actions: ColorActions;
+}) {
+  const containerRef = useRef<HTMLDivElement>(null);
+  const hueRange = { min: 0, max: 359 };
+  const lumRange = { min: 0, max: 1 };
+
+  const [_origin, setOrigin] = useState<CartesianSpace>({ x: 0, y: 0 });
+  const [dimensions, setDimensions] = useState<CartesianSpace>({ x: 0, y: 0 });
+
+  // Get measurements
+  useEffect(() => {
+    if (containerRef.current) {
+      setMeasurements(containerRef, setOrigin, setDimensions);
+    }
+
+    return useResize(() => {
+      setMeasurements(containerRef, setOrigin, setDimensions);
+    });
+  }, [containerRef.current]);
 
-function ColorPicker() {
   return (
-    <div className={styles.container}>
+    <div className={styles.container} ref={containerRef}>
-      <div className={styles.pickerSquare}>Square</div>
+      <div
-      <div className={styles.pickerBar}>Bar</div>
+        className={styles.preview}
+        style={{
+          backgroundColor: formatCssRgb(color.hex),
+        }}
+      ></div>
+      <div className={styles.verticalGripLeft}>
+        <GripSlider
+          direction={Direction.VERTICAL}
+          value={color.hcl.l}
+          setValue={actions.hcl.setL}
+          valueRange={lumRange}
+          arrowDirection="right"
+          invert={true}
+        />
+      </div>
+      <div className={styles.pickerSquare}>
+        <SquareCrosshair
+          hue={color.hcl.h}
+          luminance={color.hcl.l}
+          hex={color.hex}
+        />
+        <ColorSquare
+          chroma={color.hcl.c}
+          actions={actions.hcl}
+          parentDimensions={dimensions}
+        />
+      </div>
+      <div className={styles.verticalGripRight}>
+        <GripSlider
+          direction={Direction.VERTICAL}
+          value={color.hcl.l}
+          setValue={actions.hcl.setL}
+          valueRange={lumRange}
+          arrowDirection="left"
+          invert={true}
+        />
+      </div>
+      <div className={styles.horizontalGrip}>
+        <GripSlider
+          direction={Direction.HORIZONTAL}
+          value={color.hcl.h}
+          setValue={actions.hcl.setH}
+          valueRange={hueRange}
+          arrowDirection="up"
+        />
+      </div>
+      <div className={styles.pickerBar}>
+        <ColorBar
+          hue={color.hcl.h}
+          chroma={color.hcl.c}
+          luminance={color.hcl.l}
+          setChroma={actions.hcl.setC}
+          parentDimensions={dimensions}
+        />
+        <BarCrosshair
+          chroma={color.hcl.c}
+          luminance={color.hcl.l}
+          hex={color.hex}
+        />
+      </div>
     </div>
   );
 }

src/components/ColorValues/ColorValues.module.css

@@ -1,6 +1,137 @@
 .colorValuesWrapper {
-  width: 100%;
+  padding: 40px;
-  height: 100%;
   display: flex;
   flex-direction: column;
+  gap: 16px;
+}
+
+.spaceWrapper {
+  display: flex;
+  flex-direction: column;
+  flex: 1;
+  min-height: 0;
+  border: 2px solid #7a7a7a;
+}
+
+.componentWrapper {
+  display: flex;
+  align-items: stretch;
+  width: 100%;
+  height: 25px;
+  font-family: monospace;
+  border-top: 1px solid #7a7a7a;
+  border-bottom: 1px solid #7a7a7a;
+}
+
+.componentWrapper:first-of-type {
+  border-top: none;
+}
+
+.componentWrapper:last-of-type {
+  border-bottom: none;
+}
+
+.section {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border-right: 2px solid #7a7a7a;
+}
+
+.section:last-of-type {
+  border-right: none;
+}
+
+.symbol {
+  font-family: monospace;
+  font-size: 14px;
+  aspect-ratio: 1 / 1;
+}
+
+.sliderSection {
+  position: relative;
+  flex-grow: 1;
+}
+
+.sliderWrapper {
+  width: 100%;
+  height: 100%;
+}
+
+.sliderBar {
+  position: absolute;
+  top: 0;
+  left: 0;
+  height: 100%;
+  background-color: #aaa;
+  pointer-events: none;
+}
+
+.buttonWrapper {
+  aspect-ratio: 1 / 1;
+}
+
+.button {
+  height: 100%;
+  width: 100%;
+  padding: 0;
+  cursor: pointer;
+  user-select: none;
+  background: none;
+  border: none;
+}
+
+.button:hover {
+  background-color: #ddd;
+}
+
+.button:active {
+  background-color: #bbb;
+}
+
+.valueWrapper {
+  aspect-ratio: 1.5 / 1;
+  min-width: 40px;
+}
+
+.value {
+  height: 100%;
+  width: 100%;
+  background: none;
+  border: none;
+  padding: 0 5px;
+  font-family: monospace;
+  font-size: 14px;
+  text-align: right;
+}
+
+.hexEditor {
+  display: flex;
+  align-items: stretch;
+  font-family: monospace;
+  border: 2px solid #7a7a7a;
+  height: 25px;
+  max-width: 150px;
+}
+
+.hexLabel {
+  font-family: monospace;
+  font-size: 14px;
+  padding: 0 10px;
+}
+
+.hexValueWrapper {
+  flex: 1;
+}
+
+.hexValueWrapper input {
+  height: 100%;
+  width: 100%;
+  background: none;
+  border: none;
+  padding: 0 5px;
+  font-family: monospace;
+  font-size: 14px;
+  letter-spacing: 0.1em;
+  text-align: center;
 }

src/components/ColorValues/ColorValues.tsx

@@ -3,7 +3,7 @@ import type { KeyboardEvent } from "react";
 
 import * as colorlib from "colorlib";
 
-import type { ColorActions } from "@hooks/color";
+import type { ColorActions } from "@/hooks/color";
 
 import styles from "./ColorValues.module.css";
 import SpaceEditor from "./SpaceEditor";

src/components/ColorValues/ColorValuesTest.cy.tsx

@@ -2,7 +2,7 @@ import { useReducer } from "react";
 
 import { Color } from "colorlib";
 
-import { colorReducer, createColorActions } from "@hooks/color";
+import { colorReducer, createColorActions } from "@/hooks/color";
 
 import ColorValues from "./ColorValues";
 

src/components/ColorValues/HexEditorTest.cy.tsx

@@ -2,7 +2,7 @@ import { useReducer } from "react";
 
 import { Color } from "colorlib";
 
-import { colorReducer, createColorActions } from "@hooks/color";
+import { colorReducer, createColorActions } from "@/hooks/color";
 
 import { HexEditor } from "./ValueEditor";
 

src/components/ColorValues/SpaceEditor.module.css

@@ -1,6 +0,0 @@
-.spaceWrapper {
-  display: flex;
-  flex-direction: column;
-  flex: 1;
-  min-height: 0;
-}

src/components/ColorValues/SpaceEditor.tsx

@@ -4,9 +4,9 @@ import type {
   HCLColorActions,
   HSVColorActions,
   RGBColorActions,
-} from "@hooks/color";
+} from "@/hooks/color";
 
-import styles from "./SpaceEditor.module.css";
+import styles from "./ColorValues.module.css";
 import { ValueEditor } from "./ValueEditor";
 
 type ColorSpaceProps =

src/components/ColorValues/SpaceEditorTest.cy.tsx

@@ -2,8 +2,8 @@ import { useReducer } from "react";
 
 import { Color } from "colorlib";
 
+import { colorReducer, createColorActions } from "@/hooks/color";
 import { roundTo } from "@/util";
-import { colorReducer, createColorActions } from "@hooks/color";
 
 import SpaceEditor from "./SpaceEditor";
 

src/components/ColorValues/ValueEditor.module.css

@@ -1,118 +0,0 @@
-.componentWrapper {
-  display: flex;
-  align-items: stretch;
-  width: 100%;
-  height: 25px;
-  font-family: monospace;
-  border: 1px solid black;
-  border-top: none;
-}
-
-.componentWrapper:first-of-type {
-  border-top: 1px solid black;
-}
-
-.section {
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  border-right: 1px solid black;
-}
-
-.section:last-of-type {
-  border-right: none;
-}
-
-.symbol {
-  font-family: monospace;
-  font-size: 14px;
-  aspect-ratio: 1 / 1;
-}
-
-.sliderSection {
-  position: relative;
-  flex-grow: 1;
-}
-
-.sliderWrapper {
-  width: 100%;
-  height: 100%;
-}
-
-.sliderBar {
-  position: absolute;
-  top: 0;
-  left: 0;
-  height: 100%;
-  background-color: #aaa;
-  pointer-events: none;
-}
-
-.buttonWrapper {
-  aspect-ratio: 1 / 1;
-}
-
-.button {
-  height: 100%;
-  width: 100%;
-  padding: 0;
-  cursor: pointer;
-  user-select: none;
-  background: none;
-  border: none;
-}
-
-.button:hover {
-  background-color: #ddd;
-}
-
-.button:active {
-  background-color: #bbb;
-}
-
-.valueWrapper {
-  aspect-ratio: 1.5 / 1;
-  min-width: 40px;
-}
-
-.value {
-  height: 100%;
-  width: 100%;
-  background: none;
-  border: none;
-  padding: 0 5px;
-  font-family: monospace;
-  font-size: 14px;
-  text-align: right;
-}
-
-.hexEditor {
-  display: flex;
-  align-items: stretch;
-  font-family: monospace;
-  border: 1px solid black;
-  height: 25px;
-  max-width: 150px;
-}
-
-.hexLabel {
-  font-family: monospace;
-  font-size: 14px;
-  padding: 0 10px;
-}
-
-.hexValueWrapper {
-  flex: 1;
-}
-
-.hexValueWrapper input {
-  height: 100%;
-  width: 100%;
-  background: none;
-  border: none;
-  padding: 0 5px;
-  font-family: monospace;
-  font-size: 14px;
-  letter-spacing: 0.1em;
-  text-align: center;
-}

src/components/ColorValues/ValueEditor.tsx

@@ -10,15 +10,15 @@ import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
 import clsx from "clsx";
 import * as colorlib from "colorlib";
 
+import type { HexColorActions } from "@/hooks/color";
+import { useScroll } from "@/hooks/scroll";
+import { useSlider } from "@/hooks/slider";
+import { useResize } from "@/hooks/window";
 import type { CartesianSpace, Range, Setter, Timeout } from "@/types";
 import { Direction } from "@/types";
-import { minmax, setMeasurements, valueToPosition } from "@/util";
+import { minmax, roundTo, setMeasurements, valueToPosition } from "@/util";
-import type { HexColorActions } from "@hooks/color";
-import { useScroll } from "@hooks/scroll";
-import { useSlider } from "@hooks/slider";
-import { useResize } from "@hooks/window";
 
-import styles from "./ValueEditor.module.css";
+import styles from "./ColorValues.module.css";
 
 // ------------ //
 // Value Editor //
@@ -68,7 +68,7 @@ export function ValueEditor({
     setValue((prev) => {
       const scaledStep = step / scale;
       const newValue = minmax(
-        Math.floor(prev * scale) / scale + scaledStep,
+        roundTo(Math.floor(roundTo(prev * scale, 6)) / scale + scaledStep, 6),
         valueRange.min,
         valueRange.max,
       );

src/components/ColorValues/ValueEditorTest.cy.tsx

@@ -2,7 +2,7 @@ import { useReducer } from "react";
 
 import { Color } from "colorlib";
 
-import { colorReducer, createColorActions } from "@hooks/color";
+import { colorReducer, createColorActions } from "@/hooks/color";
 
 import { ValueEditor } from "./ValueEditor";
 

src/hooks/color.ts

@@ -62,7 +62,7 @@ export function colorReducer(
   }
 }
 
-type Setter = (valOrCallback: SetterValueOrCallback<number>) => void;
+export type Setter = (valOrCallback: SetterValueOrCallback<number>) => void;
 
 export interface CommonColorActions {
   setColor: (color: colorlib.Color) => void;

src/hooks/crosshair.tsx

@@ -9,6 +9,8 @@ import {
   positionToValue,
 } from "@/util";
 
+import { useSmoothAnimation } from "./animation";
+
 if (typeof TouchEvent === "undefined") {
   // @ts-ignore - intentionally creating global
   window.TouchEvent = window.MouseEvent;
@@ -21,6 +23,8 @@ export function useCrosshair({
   setYValue,
   xValueRange,
   yValueRange,
+  invertX,
+  invertY,
 }: {
   origin: CartesianSpace;
   dimensions: CartesianSpace;
@@ -28,6 +32,8 @@ export function useCrosshair({
   setYValue: Setter<number>;
   xValueRange: Range;
   yValueRange: Range;
+  invertX?: boolean;
+  invertY?: boolean;
 }) {
   const [isDragging, setIsDragging] = useState(false);
   const crosshairRef = useRef<HTMLDivElement>(null);
@@ -42,6 +48,9 @@ export function useCrosshair({
   const xValueRangeRef = useRef(xValueRange);
   const yValueRangeRef = useRef(yValueRange);
 
+  // Hooks
+  const smoothAnimation = useSmoothAnimation();
+
   useEffect(() => {
     originRef.current = origin;
     dimensionsRef.current = dimensions;
@@ -55,13 +64,23 @@ export function useCrosshair({
   const calculatePositions = useCallback((event: MouseEvent | TouchEvent) => {
     const orig = originRef.current;
     const dims = dimensionsRef.current;
+    const xRange = xValueRangeRef.current;
+    const yRange = yValueRangeRef.current;
 
     const { clientX, clientY } = extractEventCoordinates(event);
 
     const xPos = minmax(clientX - orig.x, 0, dims.x - 1);
     const yPos = minmax(clientY - orig.y, 0, dims.y - 1);
-    const newXValue = positionToValue(xPos, dims.x - 1, xValueRangeRef.current);
+    let newXValue = positionToValue(xPos, dims.x - 1, xRange);
-    const newYValue = positionToValue(yPos, dims.y - 1, yValueRangeRef.current);
+    let newYValue = positionToValue(yPos, dims.y - 1, yRange);
+
+    if (invertX) {
+      newXValue = xRange.max - newXValue;
+    }
+
+    if (invertY) {
+      newYValue = yRange.max - newYValue;
+    }
 
     setXValueRef.current(newXValue);
     setYValueRef.current(newYValue);
@@ -70,7 +89,7 @@ export function useCrosshair({
   const handleMove = useCallback(
     (event: MouseEvent | TouchEvent) => {
       event.preventDefault();
-      calculatePositions(event);
+      smoothAnimation(() => calculatePositions(event));
     },
     [calculatePositions],
   );

src/hooks/slider.tsx

@@ -12,6 +12,7 @@ import {
   valueToPosition,
 } from "@/util";
 
+import { useSmoothAnimation } from "./animation";
 import { useScroll } from "./scroll";
 
 if (typeof TouchEvent === "undefined") {
@@ -34,6 +35,7 @@ export function useSlider({
   valueRange,
   value,
   setValue,
+  invert = false,
 }: {
   direction: Direction;
   origin: CartesianSpace;
@@ -41,6 +43,7 @@ export function useSlider({
   valueRange: Range;
   value: number;
   setValue: Setter<number>;
+  invert?: boolean;
 }) {
   const [isDragging, setIsDragging] = useState(false);
   const sliderRef = useRef<HTMLDivElement>(null);
@@ -59,6 +62,9 @@ export function useSlider({
   const [position, setPosition] = useState(0);
   const positionRef = useRef(position);
 
+  // Hooks
+  const smoothAnimation = useSmoothAnimation();
+
   useEffect(() => {
     directionRef.current = direction;
     originRef.current = origin;
@@ -68,6 +74,11 @@ export function useSlider({
       dimensions.x,
       dimensions.y,
     );
+    positionRef.current = valueToPosition(
+      value,
+      maxPosition.current,
+      valueRangeRef.current,
+    );
   }, [direction, origin, dimensions]);
 
   useEffect(() => {
@@ -94,19 +105,23 @@ export function useSlider({
       0,
       chooseValueByDirection(dir, dims.x, dims.y),
     );
-    const newValue = positionToValue(
+    let newValue = positionToValue(
       newPosition,
       maxPosition.current,
       valueRangeRef.current,
     );
 
+    if (invert) {
+      newValue = valueRangeRef.current.max - newValue;
+    }
+
     setValueRef.current(newValue);
   }, []);
 
   const handleMove = useCallback(
     (event: MouseEvent | TouchEvent) => {
       event.preventDefault();
-      calculatePosition(event);
+      smoothAnimation(() => calculatePosition(event));
     },
     [calculatePosition],
   );
@@ -154,6 +169,7 @@ export function useSlider({
       maxPosition.current,
       valueRangeRef.current,
     );
+
     setValueRef.current(newValue);
   }, []);
 

src/providers/SelectedColorProvider.tsx

@@ -1,10 +1,10 @@
-import { createContext, useContext, useReducer } from "react";
+import { createContext, useReducer } from "react";
 import type { ReactNode } from "react";
 
 import * as colorlib from "colorlib";
 
-import { colorReducer, createColorActions } from "@hooks/color";
+import { colorReducer, createColorActions } from "@/hooks/color";
-import type { ColorActions } from "@hooks/color";
+import type { ColorActions } from "@/hooks/color";
 
 interface SelectedColorContextType {
   selectedColor: colorlib.Color;

src/util.ts

@@ -1,5 +1,7 @@
 import type { RefObject } from "react";
 
+import { Hex } from "colorlib";
+
 import type { CartesianSpace, Range } from "./types";
 import { Direction } from "./types";
 
@@ -94,3 +96,7 @@ export function roundTo(value: number, decimals: number = 0) {
   const factor = Math.pow(10, decimals);
   return Math.round(value * factor) / factor;
 }
+
+export function formatCssRgb(hex: Hex) {
+  return `rgb(${hex.r},${hex.g},${hex.b})`;
+}

tsconfig.app.json

@@ -26,9 +26,6 @@
     "baseUrl": ".",
     "paths": {
       "@/*": ["./src/*"],
-      "@components/*": ["./src/components/*"],
-      "@hooks/*": ["./src/hooks/*"],
-      "@providers/*": ["./src/providers/*"]
     }
   },
   "include": ["src", "cypress"]

vite.config.ts

@@ -11,9 +11,6 @@ export default defineConfig({
   resolve: {
     alias: {
       "@": path.resolve(__dirname, "./src"),
-      "@components": path.resolve(__dirname, "./src/components"),
-      "@hooks": path.resolve(__dirname, "./src/hooks"),
-      "@providers": path.resolve(__dirname, "./src/providers"),
     },
   },
   server: {