private void DrawLabel(LabelModel labelModel, ChartPlotInfo info, LabelAlign align = LabelAlign.Left)
{
switch (align)
{
case LabelAlign.Left:
break;
case LabelAlign.Center:
labelModel.XPix -= labelModel.Text.Length * 4;
break;
case LabelAlign.Right:
break;
default:
break;
}
var textBlock = new TextBlock();
textBlock.Text = labelModel.Text;
RenderElement(textBlock, labelModel.XPix, labelModel.YPix);
}
private void DrawGrid(ChartPlotInfo info)
{
var frameBrush = Brushes.SteelBlue;
var gridBrush = Brushes.LightSteelBlue;
//Grid
for (DateTime x = info.MinX; x < info.MaxX; x += info.XStep)
{
if (x > info.MinX)
{
DrawLine(x, 0, x, info.PhysHeight, info, gridBrush, true);
}
var labelModel = new LabelModel(info)
{
Text = string.Format("{0:dd MMM yyyy}", x),
XPhys = x,
YPix = info.MaxHeight + ARGUMENT_LABEL_VERTICAL_SHIFT + info.HeaderHeight
};
DrawLabel(labelModel, info);
}
for (var y = info.MinY; y <= info.MaxY; y += info.YStep)
{
DrawLine(0, y, info.Width, y, info, gridBrush, true);
var labelModel = new LabelModel(info)
{
Text = string.Format("{0:F1}", y),
XPix = VALUE_LABEL_HORIZONTAL_SHIFT,
YPhys = y
};
DrawLabel(labelModel, info);
}
//Frame
//left
DrawLine(0, 0, 0, info.MaxY, info, frameBrush);
//right
DrawLine(info.Width, 0, info.Width, info.MaxY, info, frameBrush);
//bottom
DrawLine(0, info.MaxY, info.Width, info.MaxY, info, frameBrush);
//top
DrawLine(0, 0, info.Width, 0, info, frameBrush);
}