public void AddLine(PointF_ a, PointF_ b)
{
Status status = GDIPlus.GdipAddPathLine(nativePath, a.X, a.Y, b.X,
b.Y);
GDIPlus.CheckStatus(status);
}
public void AddBezier(PointF_ pt1, PointF_ pt2, PointF_ pt3, PointF_ pt4)
{
Status status = GDIPlus.GdipAddPathBezier(nativePath, pt1.X, pt1.Y,
pt2.X, pt2.Y, pt3.X, pt3.Y, pt4.X, pt4.Y);
GDIPlus.CheckStatus(status);
}
public void AddString(string s, FontFamily family, int style, float emSize, PointF_ origin, StringFormat format)
{
RectangleF_ layout = new RectangleF_();
layout.X = origin.X;
layout.Y = origin.Y;
AddString(s, family, style, emSize, layout, format);
}
public LinearGradientBrush(PointF_ point1, PointF_ point2, Color_ color1, Color_ color2)
{
Status status = GDIPlus.GdipCreateLineBrush(ref point1, ref point2, color1.ToArgb(), color2.ToArgb(), WrapMode.Tile, out nativeObject);
GDIPlus.CheckStatus(status);
status = GDIPlus.GdipGetLineRect(nativeObject, out rectangle);
GDIPlus.CheckStatus(status);
}
public void RotateAt(float angle, PointF_ point, MatrixOrder order)
{
if ((order < MatrixOrder.Prepend) || (order > MatrixOrder.Append))
{
throw new ArgumentException("order");
}
angle *= (float)(Math.PI / 180.0); // degrees to radians
float cos = (float)Math.Cos(angle);
float sin = (float)Math.Sin(angle);
float e4 = -point.X * cos + point.Y * sin + point.X;
float e5 = -point.X * sin - point.Y * cos + point.Y;
float[] m = this.Elements;
Status status;
if (order == MatrixOrder.Prepend)
{
status = GDIPlus.GdipSetMatrixElements(nativeMatrix,
cos * m[0] + sin * m[2],
cos * m[1] + sin * m[3],
-sin * m[0] + cos * m[2],
-sin * m[1] + cos * m[3],
e4 * m[0] + e5 * m[2] + m[4],
e4 * m[1] + e5 * m[3] + m[5]);
}
else
{
status = GDIPlus.GdipSetMatrixElements(nativeMatrix,
m[0] * cos + m[1] * -sin,
m[0] * sin + m[1] * cos,
m[2] * cos + m[3] * -sin,
m[2] * sin + m[3] * cos,
m[4] * cos + m[5] * -sin + e4,
m[4] * sin + m[5] * cos + e5);
}
GDIPlus.CheckStatus(status);
}
internal static SizeF_ MeasureString(string text, Font font, PointF_ origin, StringFormat stringFormat)
{
return(Hwnd.GraphicsContext.MeasureString(text, font, origin, stringFormat));
}
public bool IsVisible(PointF_ pt, Graphics graphics)
{
return(IsVisible(pt.X, pt.Y, graphics));
}
public bool IsVisible(PointF_ point)
{
return(IsVisible(point.X, point.Y, null));
}
public bool IsOutlineVisible(PointF_ pt, Pen pen, Graphics graphics)
{
return(IsOutlineVisible(pt.X, pt.Y, pen, graphics));
}
public bool IsOutlineVisible(PointF_ point, Pen pen)
{
return(IsOutlineVisible(point.X, point.Y, pen, null));
}
public void RotateAt(float angle, PointF_ point)
{
RotateAt(angle, point, MatrixOrder.Prepend);
}
