private static List <GradientStopCollection> GetPreDefinedGradients()
{
if (stops == null)
{
lock (lockObject)
{
if (stops == null)
{
stops = new List <GradientStopCollection>();
stops.Add(createGradientStopCollection(new Color[] { Colors.Transparent, Colors.Blue, Colors.Red, Colors.Yellow, Colors.White }));
stops.Add(createGradientStopCollection(new Color[] { Colors.White, Colors.Yellow, Colors.Red, Colors.Blue, Colors.Transparent }));
stops.Add(createGradientStopCollection(new Color[] {
ColorPickerUtils.FromHex("#FFFFC800"),
ColorPickerUtils.FromHex("#FF0000FF"),
ColorPickerUtils.FromHex("#FFB700C4"),
ColorPickerUtils.FromHex("#FFFF0088"),
ColorPickerUtils.FromHex("#FFFF0051"),
ColorPickerUtils.FromHex("#FFFF4229"),
ColorPickerUtils.FromHex("#FFFF8C00")
}));
stops.Add(createGradientStopCollection(new Color[] {
ColorPickerUtils.FromHex("#FFFF8C00"),
ColorPickerUtils.FromHex("#FFFF4229"),
ColorPickerUtils.FromHex("#FFFF0051"),
ColorPickerUtils.FromHex("#FFFF0088"),
ColorPickerUtils.FromHex("#FFB700C4"),
ColorPickerUtils.FromHex("#FF0000FF"),
ColorPickerUtils.FromHex("#FFFFC800")
}));
stops.Add(createGradientStopCollection(new Color[] { Colors.Transparent, Colors.Black, Colors.Yellow, Colors.Red, Colors.White }));
stops.Add(createGradientStopCollection(new Color[] { Colors.White, Colors.Red, Colors.Yellow, Colors.Black, Colors.Transparent }));
}
}
}
return(stops);
}
internal static Color FromHex(string newColor)
{
return(ColorPickerUtils.FromHex(newColor));
}
private static LinearGradientBrush createBrush(string startHex, string endHex)
{
return(createBrush(ColorPickerUtils.FromHex(startHex), ColorPickerUtils.FromHex(endHex)));
}
private static void applyColorToSymbol(Symbol symbol, Color color)
{
if (symbol == null)
{
return;
}
FillSymbol fillSymbol = symbol as FillSymbol;
if (fillSymbol != null)
{
byte currentAlpha = (byte)255;
if (fillSymbol.Fill != null)
{
currentAlpha = (byte)(255 * fillSymbol.Fill.Opacity); // Preserve current opacity of symbol color
}
string colorHex = Color.FromArgb(currentAlpha, color.R, color.G, color.B).ToString();
Color newColor = ColorPickerUtils.FromHex(colorHex);
if (fillSymbol is ESRI.ArcGIS.Client.FeatureService.Symbols.SimpleFillSymbol)
{
(fillSymbol as ESRI.ArcGIS.Client.FeatureService.Symbols.SimpleFillSymbol).Color = newColor;
}
else
{
fillSymbol.Fill = new SolidColorBrush(newColor);
}
}
else
{
LineSymbol lineSymbol = symbol as LineSymbol;
if (lineSymbol != null)
{
byte currentAlpha = (byte)255;
if (lineSymbol.Color != null)
{
currentAlpha = (byte)(255 * lineSymbol.Color.Opacity);// Preserve current opacity of symbol color
}
string colorHex = Color.FromArgb(currentAlpha, color.R, color.G, color.B).ToString();
Color newColor = ColorPickerUtils.FromHex(colorHex);
lineSymbol.Color = new SolidColorBrush(newColor);
}
else
{
ESRI.ArcGIS.Mapping.Core.Symbols.MarkerSymbol markerSymbol = symbol as ESRI.ArcGIS.Mapping.Core.Symbols.MarkerSymbol;
if (markerSymbol != null)
{
byte currentAlpha = (byte)255;
if (markerSymbol.Color != null)
{
currentAlpha = (byte)(255 * markerSymbol.Color.Opacity);// Preserve current opacity of symbol color
}
string colorHex = Color.FromArgb(currentAlpha, color.R, color.G, color.B).ToString();
Color newColor = ColorPickerUtils.FromHex(colorHex);
markerSymbol.Color = new SolidColorBrush(newColor);
}
else
{
ESRI.ArcGIS.Client.Symbols.SimpleMarkerSymbol simpleMarkerSymbol = symbol as ESRI.ArcGIS.Client.Symbols.SimpleMarkerSymbol;
if (simpleMarkerSymbol != null)
{
byte currentAlpha = (byte)255;
if (simpleMarkerSymbol.Color != null)
{
currentAlpha = (byte)(255 * simpleMarkerSymbol.Color.Opacity);// Preserve current opacity of symbol color
}
string colorHex = Color.FromArgb(currentAlpha, color.R, color.G, color.B).ToString();
Color newColor = ColorPickerUtils.FromHex(colorHex);
simpleMarkerSymbol.Color = new SolidColorBrush(newColor);
}
else
{
ESRI.ArcGIS.Client.FeatureService.Symbols.SimpleMarkerSymbol sms = symbol as ESRI.ArcGIS.Client.FeatureService.Symbols.SimpleMarkerSymbol;
if (sms != null)
{
byte currentAlpha = (byte)255;
if (sms.Color is SolidColorBrush)
{
currentAlpha = (sms.Color as SolidColorBrush).Color.A;
}
else if (sms.Color != null)
{
currentAlpha = (byte)(255 * sms.Color.Opacity);// Preserve current opacity of symbol color
}
string colorHex = Color.FromArgb(currentAlpha, color.R, color.G, color.B).ToString();
Color newColor = ColorPickerUtils.FromHex(colorHex);
sms.Color = new SolidColorBrush(newColor);
if (sms.OutlineColor != null)
{
sms.OutlineColor = new SolidColorBrush(newColor);
}
}
}
}
}
}
}