public static void DrawLabel(AbstractGraphics g, string text, PointF center, AbstractFont font, AbstractBrush brush, LabelStyle labelStyle)
{
using (g.Save())
{
if (labelStyle.Uppercase)
{
text = text.ToUpper();
}
if (labelStyle.Wrap)
{
text = text.Replace(' ', '\n');
}
g.TranslateTransform(center.X, center.Y);
g.ScaleTransform(1.0f / Astrometrics.ParsecScaleX, 1.0f / Astrometrics.ParsecScaleY);
g.TranslateTransform(labelStyle.Translation.X, labelStyle.Translation.Y);
g.RotateTransform(labelStyle.Rotation);
g.ScaleTransform(labelStyle.Scale.Width, labelStyle.Scale.Height);
if (labelStyle.Rotation != 0 && g.Graphics != null)
{
g.Graphics.TextRenderingHint = TextRenderingHint.AntiAlias;
}
DrawString(g, text, font, brush, 0, 0);
}
}
internal void DrawName(AbstractGraphics graphics, RectangleF rect, AbstractFont font, AbstractBrush textBrush, LabelStyle labelStyle)
{
if (graphics == null)
{
throw new ArgumentNullException(nameof(graphics));
}
RectangleF bounds = TransformedBounds;
if (bounds.IntersectsWith(rect))
{
if (Name != null)
{
string str = Name;
if (labelStyle.Uppercase)
{
str = str.ToUpperInvariant();
}
PointF pos = NamePosition;// PointF( bounds.Left + bounds.Width / 2, bounds.Top + bounds.Height / 2 );
using (graphics.Save())
{
graphics.TranslateTransform(pos.X, pos.Y);
graphics.ScaleTransform(1.0f / Astrometrics.ParsecScaleX, 1.0f / Astrometrics.ParsecScaleY);
graphics.RotateTransform(-labelStyle.Rotation); // Rotate it
RenderUtil.DrawString(graphics, str, font, textBrush, 0, 0);
}
}
}
}
public static void DrawString(AbstractGraphics g, string text, AbstractFont font, AbstractBrush brush, float x, float y, TextFormat format = TextFormat.Center)
{
if (string.IsNullOrWhiteSpace(text))
{
return;
}
var lines = text.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.None).ToList();
var sizes = lines.Select(s => g.MeasureString(s, font)).ToList();
float fontUnitsToWorldUnits = font.Size / font.FontFamily.GetEmHeight(font.Style);
float lineSpacing = font.FontFamily.GetLineSpacing(font.Style) * fontUnitsToWorldUnits;
float ascent = font.FontFamily.GetCellAscent(font.Style) * fontUnitsToWorldUnits;
//float descent = font.FontFamily.GetCellDescent(font.Style) * fontUnitsToWorldUnits;
SizeF boundingSize = new SizeF(sizes.Max(s => s.Width), lineSpacing * sizes.Count());
// Offset from baseline to top-left.
y += lineSpacing / 2;
float widthFactor = 0;
switch (format)
{
case TextFormat.MiddleLeft:
case TextFormat.Center:
case TextFormat.MiddleRight:
y -= boundingSize.Height / 2;
break;
case TextFormat.BottomLeft:
case TextFormat.BottomCenter:
case TextFormat.BottomRight:
y -= boundingSize.Height;
break;
}
switch (format)
{
case TextFormat.TopCenter:
case TextFormat.Center:
case TextFormat.BottomCenter:
widthFactor = -0.5f;
break;
case TextFormat.TopRight:
case TextFormat.MiddleRight:
case TextFormat.BottomRight:
widthFactor = -1;
break;
}
lines.ForEachZip(sizes, (line, sz) =>
{
g.DrawString(line, font, brush, x + widthFactor * sz.Width + sz.Width / 2, y, Graphics.StringAlignment.Centered);
y += lineSpacing;
});
}
internal void Paint(AbstractGraphics graphics, Color dotColor, AbstractBrush labelBrush, AbstractFont labelFont)
{
if (graphics == null)
{
throw new ArgumentNullException(nameof(graphics));
}
Point pt = Astrometrics.LocationToCoordinates(Location);
using (graphics.Save())
{
graphics.TranslateTransform(pt.X, pt.Y);
graphics.ScaleTransform(1.0f / Astrometrics.ParsecScaleX, 1.0f / Astrometrics.ParsecScaleY);
const float radius = 3;
AbstractBrush brush = new AbstractBrush(dotColor);
AbstractPen pen = new AbstractPen(dotColor);
graphics.SmoothingMode = SmoothingMode.HighQuality;
graphics.DrawEllipse(pen, brush, -radius / 2, -radius / 2, radius, radius);
RenderUtil.TextFormat format;
if (LabelBiasX > 0)
{
format = LabelBiasY < 0 ? RenderUtil.TextFormat.BottomLeft : LabelBiasY > 0 ? RenderUtil.TextFormat.TopLeft : RenderUtil.TextFormat.MiddleLeft;
}
else if (LabelBiasX < 0)
{
format = LabelBiasY < 0 ? RenderUtil.TextFormat.BottomRight : LabelBiasY > 0 ? RenderUtil.TextFormat.TopRight : RenderUtil.TextFormat.MiddleRight;
}
else
{
format = LabelBiasY < 0 ? RenderUtil.TextFormat.BottomCenter : LabelBiasY > 0 ? RenderUtil.TextFormat.TopCenter : RenderUtil.TextFormat.Center;
}
float y = (LabelBiasY * radius / 2);
float x = (LabelBiasX * radius / 2);
RenderUtil.DrawString(graphics, Name, labelFont, labelBrush, x, y, format);
}
}
