ContrastBrushConverter Class
Definition
Gets a Avalonia.Media.SolidColorBrush, either black or white, depending on the luminance of the supplied color. A default color supplied in the converter parameter may be returned if alpha is below the set threshold.
public class ContrastBrushConverter
Remarks
This is a highly-specialized converter for the color picker.
Constructors
| Name | Description |
|---|---|
| ContrastBrushConverter | No summary available. |
ContrastBrushConverter Constructor
public ContrastBrushConverter()
Methods
| Name | Description |
|---|---|
| Convert | Converts a value. |
| ConvertBack | Converts a value. |
Convert Method
Converts a value.
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
Parameters
value object
The value to convert.
targetType Type
The type of the target.
parameter object
A user-defined parameter.
culture System.Globalization.CultureInfo
The culture to use.
Returns
object
The converted value.
Remarks
This method should not throw exceptions. If the value is not convertible, return a Avalonia.Data.BindingNotification in an error state. Any exceptions thrown will be treated as an application exception.
ConvertBack Method
Converts a value.
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
Parameters
value object
The value to convert.
targetType Type
The type of the target.
parameter object
A user-defined parameter.
culture System.Globalization.CultureInfo
The culture to use.
Returns
object
The converted value.
Remarks
This method should not throw exceptions. If the value is not convertible, return a Avalonia.Data.BindingNotification in an error state. Any exceptions thrown will be treated as an application exception.
Properties
| Name | Description |
|---|---|
| AlphaThreshold | Gets or sets the alpha channel threshold below which a default color is used instead of black/white. |
AlphaThreshold Property
Gets or sets the alpha channel threshold below which a default color is used instead of black/white.
public byte AlphaThreshold { get; set; }