SunburstPaletteColorizerBase.GetItemBrush(ISunburstSectorInfo) Method

Returns a brush that is applied to the sector.

Namespace: DevExpress.Xpf.TreeMap

Assembly: DevExpress.Xpf.TreeMap.v20.2.dll

NuGet Packages: DevExpress.WindowsDesktop.Wpf.TreeMap, DevExpress.Wpf.TreeMap

Declaration

C#

public override Brush GetItemBrush(
    ISunburstSectorInfo item
)

VB.NET

Public Overrides Function GetItemBrush(
    item As ISunburstSectorInfo
) As Brush

Parameters

Name	Type	Description
item	DevExpress.Xpf.TreeMap.ISunburstSectorInfo	Contains information about the Sunburst sector.

Returns

Type	Description
Brush	A brush that is applied to the sector.

Remarks

The following code creates and applies a custom colorizer to a Sunburst chart.

XAML

<dxtm:SunburstControl>
    <dxtm:SunburstControl.Colorizer>
        <local:ChemicalElementColorizer />
    </dxtm:SunburstControl.Colorizer>
</dxtm:SunburstControl>    

C#

public class ChemicalElementColorizer : SunburstColorizerBase {
    Dictionary<string, Brush> brushes;

    Dictionary<string, Brush> Brushes {
        get {
            if (brushes == null) {
                brushes = new Dictionary<string, Brush>();
                Brush sBlockBrush = new SolidColorBrush(Color.FromArgb(255, 216, 103, 159));
                sBlockBrush.Freeze();
                brushes["S-block"] = sBlockBrush;

                Brush pBlockBrush = new SolidColorBrush(Color.FromArgb(255, 234, 202, 39));
                pBlockBrush.Freeze();
                brushes["P-block"] = pBlockBrush;

                Brush dBlockBrush = new SolidColorBrush(Color.FromArgb(255, 102, 156, 220));
                dBlockBrush.Freeze();
                brushes["D-block"] = dBlockBrush;

                Brush fBlockBrush = new SolidColorBrush(Color.FromArgb(255, 126, 171, 54));
                fBlockBrush.Freeze();
                brushes["F-block"] = fBlockBrush;

                Brush lanthanideBrush = new SolidColorBrush(Color.FromArgb(255, 145, 183, 46));
                lanthanideBrush.Freeze();
                brushes["Lanthanide"] = lanthanideBrush;

                Brush actinideBrush = new SolidColorBrush(Color.FromArgb(255, 107, 160, 52));
                actinideBrush.Freeze();
                brushes["Actinide"] = actinideBrush;
            }
            return brushes;
        }
    }

    protected override TreeMapDependencyObject CreateObject() {
        return new ChemicalElementColorizer();
    }
    public override Brush GetItemBrush(ISunburstSectorInfo item) {
        ChemicalElement element = item.GroupInfo.IsParent ? (ChemicalElement)((IList)item.SourceObject)[0] : (ChemicalElement)item.SourceObject;
        string key = element.Block == "F-block" && item.GroupInfo.GroupLevel > 0 ? element.Family : element.Block;         
        return Brushes[key];
    }
}

VB.NET

Public Class ChemicalElementColorizer
    Inherits SunburstColorizerBase

    Private brushesField As Dictionary(Of String, Brush)

    Private ReadOnly Property Brushes As Dictionary(Of String, Brush)
        Get

            If brushesField Is Nothing Then
                brushesField = New Dictionary(Of String, Brush)()
                Dim sBlockBrush As Brush = New SolidColorBrush(Color.FromArgb(255, 216, 103, 159))
                sBlockBrush.Freeze()
                brushesField("S-block") = sBlockBrush
                Dim pBlockBrush As Brush = New SolidColorBrush(Color.FromArgb(255, 234, 202, 39))
                pBlockBrush.Freeze()
                brushesField("P-block") = pBlockBrush
                Dim dBlockBrush As Brush = New SolidColorBrush(Color.FromArgb(255, 102, 156, 220))
                dBlockBrush.Freeze()
                brushesField("D-block") = dBlockBrush
                Dim fBlockBrush As Brush = New SolidColorBrush(Color.FromArgb(255, 126, 171, 54))
                fBlockBrush.Freeze()
                brushesField("F-block") = fBlockBrush
                Dim lanthanideBrush As Brush = New SolidColorBrush(Color.FromArgb(255, 145, 183, 46))
                lanthanideBrush.Freeze()
                brushesField("Lanthanide") = lanthanideBrush
                Dim actinideBrush As Brush = New SolidColorBrush(Color.FromArgb(255, 107, 160, 52))
                actinideBrush.Freeze()
                brushesField("Actinide") = actinideBrush
            End If

            Return brushesField
        End Get
    End Property

    Protected Overrides Function CreateObject() As TreeMapDependencyObject
        Return New ChemicalElementColorizer()
    End Function

    Public Overrides Function GetItemBrush(ByVal item As ISunburstSectorInfo) As Brush
        Dim element As ChemicalElement = If(item.GroupInfo.IsParent, CType(CType(item.SourceObject, IList)(0), ChemicalElement), CType(item.SourceObject, ChemicalElement))
        Dim key As String = If(Equals(element.Block, "F-block") AndAlso item.GroupInfo.GroupLevel > 0, element.Family, element.Block)
        Return Brushes(key)
    End Function
End Class

Run Demo