public void PaintRotatedLabel(Graphics g,
string text, LabelLayout layout, int height, Brush br, Font font)
{
SizeF sz = g.MeasureString(text, font);
Size size = sz.ToSize();
Point pt = new Point(0, 0);
switch (layout.Placement)
{
case DisplayPlacement.Far:
pt.Y = -height / 2;
break;
case DisplayPlacement.Near:
pt.Y = height / 2;
break;
}
g.TranslateTransform(_Point.X, _Point.Y);
g.RotateTransform((_Angle + 90) % 360);
g.TranslateTransform(pt.X, pt.Y);
float fontAngle = layout.Angle;
if (layout.AutoOrientLabel == true)
{
if (((_Angle + layout.Angle) % 360) < 180)
fontAngle += 180;
}
g.RotateTransform(fontAngle);
g.DrawString(text, font, br,
new Point(-size.Width / 2, -size.Height / 2));
g.ResetTransform();
}
public GaugeBaseLabel()
{
_Layout = new LabelLayout();
HookEvents(true);
}
internal virtual void CopyToItem(LabelLayout copy)
{
copy.AdaptiveLabel = _AdaptiveLabel;
copy.Angle = _Angle;
copy.AutoOrientLabel = _AutoOrientLabel;
copy.AutoSize = _AutoSize;
if (_Font != null)
copy.Font = (Font)_Font.Clone();
copy.ForeColor = _ForeColor;
copy.Placement = _Placement;
copy.RotateLabel = _RotateLabel;
copy.ScaleOffset = _ScaleOffset;
}
public void PaintNonRotatedLabel(Graphics g, string text,
LabelLayout layout, Point center, int radius, Brush br, Font font)
{
SizeF sz = g.MeasureString(text, font);
int x = _Point.X - center.X;
int y = _Point.Y - center.Y;
Point pt = new Point();
switch (layout.Placement)
{
case DisplayPlacement.Far:
{
int dx = (int)(((float)(x - radius) / (radius * 2)) * sz.Width);
int dy = (int)(((float)(y - radius) / (radius * 2)) * sz.Height);
pt = new Point(_Point.X + dx, _Point.Y + dy);
}
break;
case DisplayPlacement.Near:
{
int dx = (int)(((float)(x + radius) / (radius * 2)) * sz.Width);
int dy = (int)(((float)(y + radius) / (radius * 2)) * sz.Height);
pt = new Point(_Point.X - dx, _Point.Y - dy);
}
break;
case DisplayPlacement.Center:
{
int dx = (int)(sz.Width / 2);
int dy = (int)(sz.Height / 2);
pt = new Point(_Point.X - dx, _Point.Y - dy);
}
break;
}
g.DrawString(text, font, br, pt);
}
public virtual object Clone()
{
LabelLayout copy = new LabelLayout();
CopyToItem(copy);
return (copy);
}
