DaisyColorEditor

Overview

DaisyColorEditor is a comprehensive color editing control that combines RGB and HSL sliders with numeric inputs and a hex color field. It provides precise color manipulation through multiple input methods, making it ideal for professional color selection interfaces.

Architecture Note

This is a standalone control with its own AXAML theme (DaisyColorEditor.axaml). It can be used independently or as part of DaisyColorPickerDialog. When used in the dialog:

Internal layout (slider heights, NumericUpDown widths, row spacing) → edit DaisyColorEditor.axaml
Placement within dialog (margins around the editor) → edit DaisyColorPickerDialog.cs

Properties

Property	Type	Default	Description
`Color`	`Color`	`Red`	The selected RGB color
`HslColor`	`HslColor`	`H:0, S:1, L:0.5`	The HSL representation
`EditingMode`	`ColorEditingMode`	`Rgb`	Current editing mode (RGB or HSL)
`ShowAlphaChannel`	`bool`	`true`	Show alpha channel controls
`ShowHexInput`	`bool`	`true`	Show hex color input field
`ShowRgbSliders`	`bool`	`true`	Show RGB slider section
`ShowHslSliders`	`bool`	`true`	Show HSL slider section
`OnColorChangedCallback`	`Action?`	`null`	Optional callback when color changes

Component Properties (Read/Write)

Property	Type	Range	Description
`Red`	`byte`	0-255	Red component
`Green`	`byte`	0-255	Green component
`Blue`	`byte`	0-255	Blue component
`Alpha`	`byte`	0-255	Alpha component
`Hue`	`double`	0-359	Hue in degrees
`Saturation`	`double`	0-100	Saturation percentage
`Lightness`	`double`	0-100	Lightness percentage
`HexValue`	`string?`	-	Hex color string (e.g., "#FF0000")

Editing Modes

The ColorEditingMode enum determines the primary editing interface:

Mode	Description
`Rgb`	Red, Green, Blue sliders and inputs
`Hsl`	Hue, Saturation, Lightness sliders and inputs

Events and Callbacks

Event-Based

editor.ColorChanged += (sender, e) => 
{
    Console.WriteLine($"New color: {e.Color}");
    Console.WriteLine($"Hex: #{e.Color.R:X2}{e.Color.G:X2}{e.Color.B:X2}");
};

Callback-Based

<colorpicker:DaisyColorEditor 
    OnColorChangedCallback="{Binding HandleEditorColorChanged}" />

var editor = new DaisyColorEditor
{
    ShowAlphaChannel = true,
    OnColorChangedCallback = color => 
    {
        Debug.WriteLine($"Selected: {color}");
    }
};

Quick Examples

<!-- Full-featured editor -->
<colorpicker:DaisyColorEditor 
    Color="{Binding SelectedColor, Mode=TwoWay}"
    ShowAlphaChannel="True"
    ShowHexInput="True"
    ShowRgbSliders="True"
    ShowHslSliders="True" />

<!-- RGB only (no HSL) -->
<colorpicker:DaisyColorEditor 
    Color="{Binding SelectedColor, Mode=TwoWay}"
    ShowHslSliders="False" />

<!-- HSL only (no RGB) -->
<colorpicker:DaisyColorEditor 
    Color="{Binding SelectedColor, Mode=TwoWay}"
    ShowRgbSliders="False"
    EditingMode="Hsl" />

<!-- Compact: just hex input -->
<colorpicker:DaisyColorEditor 
    Color="{Binding SelectedColor, Mode=TwoWay}"
    ShowRgbSliders="False"
    ShowHslSliders="False"
    ShowAlphaChannel="False" />

<!-- No alpha channel -->
<colorpicker:DaisyColorEditor 
    Color="{Binding SelectedColor, Mode=TwoWay}"
    ShowAlphaChannel="False" />

<!-- With callback -->
<colorpicker:DaisyColorEditor 
    OnColorChangedCallback="{Binding OnEditorColorChanged}" />

Template Parts

The control uses named template parts for its UI elements:

Part Name	Type	Purpose
`PART_RedSlider`	`DaisyColorSlider`	Red channel slider
`PART_GreenSlider`	`DaisyColorSlider`	Green channel slider
`PART_BlueSlider`	`DaisyColorSlider`	Blue channel slider
`PART_AlphaSlider`	`DaisyColorSlider`	Alpha channel slider
`PART_HueSlider`	`DaisyColorSlider`	Hue channel slider
`PART_SaturationSlider`	`DaisyColorSlider`	Saturation channel slider
`PART_LightnessSlider`	`DaisyColorSlider`	Lightness channel slider
`PART_RedInput`	`NumericUpDown`	Red numeric input
`PART_GreenInput`	`NumericUpDown`	Green numeric input
`PART_BlueInput`	`NumericUpDown`	Blue numeric input
`PART_AlphaInput`	`NumericUpDown`	Alpha numeric input
`PART_HueInput`	`NumericUpDown`	Hue numeric input
`PART_SaturationInput`	`NumericUpDown`	Saturation numeric input
`PART_LightnessInput`	`NumericUpDown`	Lightness numeric input
`PART_HexInput`	`TextBox`	Hex color input

Tips & Best Practices

Use RGB mode for precise color matching (e.g., brand colors with known RGB values).
Use HSL mode for intuitive color adjustment (change brightness without affecting hue).
Hide ShowAlphaChannel when transparency is not needed.
The hex input accepts formats: #RGB, #RRGGBB, #AARRGGBB.
All sliders and inputs are synchronized - changing one updates all others.
Use OnColorChangedCallback for simple handlers; use ColorChanged event for multiple subscribers.
Combine with DaisyColorWheel for a complete color picker interface.

Acknowledgments

This control is part of the Flowery.NET color picker suite, inspired by the Cyotek ColorPicker library (MIT License).

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