protected override void Paint(DrawingContext context)
{
//VisualNode visNode = (VisualNode)VisualItem;
//var tree = visNode.Graph.GetSpanningTree(0);
string label = GetLabel();
var formattedText = new FormattedText(label,
new System.Globalization.CultureInfo("en-us"), FlowDirection.LeftToRight,
new Typeface(new FontFamily("Arial"), FontStyles.Normal,
FontWeights.Normal, FontStretches.Normal), TextSize, Brushes.DarkBlue)
{
//LineHeight = lineHeight,
TextAlignment = TextAlignment.Center
};
double NodeWidth = Math.Max(NodeMinWidth, formattedText.Width);
double NodeHeight = Math.Max(NodeMinHeight, formattedText.Height);
var userLableType = _dataScheme.GetUserLabelType(_dataNode);
int correctCnt, totalCnt;
_dataScheme.GetCorrectDocCount(_dataNode, out correctCnt, out totalCnt);
var correctRatio = totalCnt == 0 ? 0 : ((double)correctCnt / totalCnt);
var pen = userLableType == UserLabelType.Relevant ? new Pen(Brushes.Red, 3) : userLableType == UserLabelType.Mixed ? new Pen(Brushes.Yellow, 2) : new Pen(Brushes.Black, 1);
var brush = new SolidColorBrush()
{
Color = Lava.Util.InterpolatorLib.Interp(Colors.White, Colors.Red, correctRatio)
};
context.DrawRectangle(brush, pen,
new Rect(-NodeWidth * 0.5, -NodeHeight * 0.5, NodeWidth, NodeHeight));
context.DrawText(formattedText, new Point(0, -NodeHeight * 0.5));
if (VisualItem.Hover)
{
var formattedText2 = new FormattedText(GetTooltipString(),
new System.Globalization.CultureInfo("en-us"), FlowDirection.LeftToRight,
new Typeface(new FontFamily("Arial"), FontStyles.Normal,
FontWeights.Normal, FontStretches.Normal), TextSize, Brushes.Black)
{
//LineHeight = lineHeight,
TextAlignment = TextAlignment.Center,
MaxTextWidth = 200
};
double NodeWidth2 = Math.Max(NodeMinWidth, formattedText2.Width);
double NodeHeight2 = Math.Max(NodeMinHeight, formattedText2.Height);
context.DrawRectangle(Brushes.LightYellow, null,
new Rect(0, 0, NodeWidth2 + 10, NodeHeight2));
context.DrawText(formattedText2, new Point(0, 0));
}
int layer = VisualItem.Hover ? 100 : 10;
if (VisualItem.Layer != layer)
{
VisualItem.Layer = layer;
}
}
