feat(ui): add number inputs for canvas brush color picker (#5067)

* drop-down for the color picker

* fixed the bug in alpha value

* designing done

---------

Co-authored-by: psychedelicious <4822129+psychedelicious@users.noreply.github.com>

invokeai/frontend/web/src/common/components/IAIColorPicker.tsx

@@ -1,9 +1,12 @@
-import { Box, ChakraProps } from '@chakra-ui/react';
-import { memo } from 'react';
+import { ChakraProps, Flex } from '@chakra-ui/react';
+import { memo, useCallback } from 'react';
 import { RgbaColorPicker } from 'react-colorful';
 import { ColorPickerBaseProps, RgbaColor } from 'react-colorful/dist/types';
+import IAINumberInput from './IAINumberInput';
 
-type IAIColorPickerProps = ColorPickerBaseProps<RgbaColor>;
+type IAIColorPickerProps = ColorPickerBaseProps<RgbaColor> & {
+  withNumberInput?: boolean;
+};
 
 const colorPickerStyles: NonNullable<ChakraProps['sx']> = {
   width: 6,
@@ -11,17 +14,84 @@ const colorPickerStyles: NonNullable<ChakraProps['sx']> = {
   borderColor: 'base.100',
 };
 
-const sx = {
+const sx: ChakraProps['sx'] = {
   '.react-colorful__hue-pointer': colorPickerStyles,
   '.react-colorful__saturation-pointer': colorPickerStyles,
   '.react-colorful__alpha-pointer': colorPickerStyles,
+  gap: 2,
+  flexDir: 'column',
 };
 
+const numberInputWidth: ChakraProps['w'] = '4.2rem';
+
 const IAIColorPicker = (props: IAIColorPickerProps) => {
+  const { color, onChange, withNumberInput, ...rest } = props;
+  const handleChangeR = useCallback(
+    (r: number) => onChange({ ...color, r }),
+    [color, onChange]
+  );
+  const handleChangeG = useCallback(
+    (g: number) => onChange({ ...color, g }),
+    [color, onChange]
+  );
+  const handleChangeB = useCallback(
+    (b: number) => onChange({ ...color, b }),
+    [color, onChange]
+  );
+  const handleChangeA = useCallback(
+    (a: number) => onChange({ ...color, a }),
+    [color, onChange]
+  );
   return (
-    <Box sx={sx}>
-      <RgbaColorPicker {...props} />
-    </Box>
+    <Flex sx={sx}>
+      <RgbaColorPicker
+        color={color}
+        onChange={onChange}
+        style={{ width: '100%' }}
+        {...rest}
+      />
+      {withNumberInput && (
+        <Flex>
+          <IAINumberInput
+            value={color.r}
+            onChange={handleChangeR}
+            min={0}
+            max={255}
+            step={1}
+            label="Red"
+            w={numberInputWidth}
+          />
+          <IAINumberInput
+            value={color.g}
+            onChange={handleChangeG}
+            min={0}
+            max={255}
+            step={1}
+            label="Green"
+            w={numberInputWidth}
+          />
+          <IAINumberInput
+            value={color.b}
+            onChange={handleChangeB}
+            min={0}
+            max={255}
+            step={1}
+            label="Blue"
+            w={numberInputWidth}
+          />
+          <IAINumberInput
+            value={color.a}
+            onChange={handleChangeA}
+            step={0.1}
+            min={0}
+            max={1}
+            label="Alpha"
+            w={numberInputWidth}
+            isInteger={false}
+          />
+        </Flex>
+      )}
+    </Flex>
   );
 };
 

invokeai/frontend/web/src/features/canvas/components/IAICanvasToolbar/IAICanvasToolChooserOptions.tsx

@@ -245,6 +245,7 @@ const IAICanvasToolChooserOptions = () => {
             }}
           >
             <IAIColorPicker
+              withNumberInput={true}
               color={brushColor}
               onChange={(newColor) => dispatch(setBrushColor(newColor))}
             />