/// <summary>
/// Draws an ellipse defined by a bounding rectangle specified by a pair of coordinates, a height, and a width.
/// </summary>
/// <param name="pen">A <see cref="PenEx"/> object that determines the color, width, and style of the ellipse.</param>
/// <param name="x">x-coordinate of the upper-left corner of the bounding rectangle that defines the ellipse.</param>
/// <param name="y">y-coordinate of the upper-left corner of the bounding rectangle that defines the ellipse.</param>
/// <param name="width">Width of the bounding rectangle that defines the ellipse.</param>
/// <param name="height">Height of the bounding rectangle that defines the ellipse.</param>
public void DrawEllipse(PenEx pen, int x, int y, int width, int height)
{
IntPtr hOldPen = IntPtr.Zero;
hOldPen = GDIPlus.SelectObject(hDC, pen.hPen);
GDIPlus.Ellipse(hDC, x, y, x + width, y + height);
GDIPlus.DeleteObject(GDIPlus.SelectObject(hDC, hOldPen));
}
/// <summary>
/// Draws an ellipse specified by a bounding <see cref="System.Drawing.Rectangle"/> structure.
/// </summary>
/// <param name="pen">A <see cref="PenEx"/> object that determines the color, width, and style of the ellipse.</param>
/// <param name="rc">A <see cref="System.Drawing.Rectangle"/> structure that represents the rectangle to draw.</param>
public void DrawEllipse(PenEx pen, Rectangle rc)
{
IntPtr hOldPen = IntPtr.Zero;
hOldPen = GDIPlus.SelectObject(hDC, pen.hPen);
GDIPlus.Ellipse(hDC, rc.Left, rc.Top, rc.Right, rc.Bottom);
GDIPlus.DeleteObject(GDIPlus.SelectObject(hDC, hOldPen));
}
// public void DrawFrameControl(Rectangle rc, FrameType type, int state)
// {
// GDIPlus.DrawFrameControl(hDC, ref rc, (int)type, state);
//
// }
/// <summary>
/// Draws a rectangle with rounded corners.
/// </summary>
/// <param name="pen">A <see cref="PenEx"/> object that determines the color, width, and style of the rectangle</param>
/// <param name="rc">A <see cref="System.Drawing.Rectangle"/> structure that represents the rectangle to draw.</param>
/// <param name="size">A <see cref="Size"/> structre that defines the corner radius.</param>
public void DrawRoundRectangle(PenEx pen, Rectangle rc, Size size)
{
IntPtr hOldPen = IntPtr.Zero;
hOldPen = GDIPlus.SelectObject(hDC, pen.hPen);
GDIPlus.RoundRect(hDC, rc.Left, rc.Top, rc.Right, rc.Bottom, size.Height, size.Width);
GDIPlus.DeleteObject(GDIPlus.SelectObject(hDC, hOldPen));
}
/// <summary>
/// Draws a line connecting the two points specified by coordinate pairs.
/// </summary>
/// <param name="pen">PenEx object that determines the color, width, and style of the line.</param>
/// <param name="xStart">x-coordinate of the first point.</param>
/// <param name="yStart">y-coordinate of the first point.</param>
/// <param name="xEnd">x-coordinate of the second point.</param>
/// <param name="yEnd">x-coordinate of the seconf point.</param>
public void DrawLine(PenEx pen, int xStart, int yStart, int xEnd, int yEnd)
{
IntPtr hOldPen = IntPtr.Zero;
hOldPen = GDIPlus.SelectObject(hDC, pen.hPen);
//Set start position
GDIPlus.POINT pt = new GDIPlus.POINT();
GDIPlus.MoveToEx(hDC, xStart, yStart, ref pt);
//Drawe line
GDIPlus.LineTo(hDC, xEnd, yEnd);
//Restore the initial position
GDIPlus.MoveToEx(hDC, pt.x, pt.y, ref pt);
//Clean up
GDIPlus.DeleteObject(GDIPlus.SelectObject(hDC, hOldPen));
}
/// <summary>
/// Draws a rectangle specified by a <see cref="Rectangle"/> structure.
/// </summary>
/// <param name="pen">A <see cref="PenEx"/> object that determines the color, width, and style of the rectangle. </param>
/// <param name="rc">A <see cref="Rectangle"/> structure that represents the rectangle to draw. </param>
public void DrawRectangle(PenEx pen, Rectangle rc)
{
IntPtr hOldPen = IntPtr.Zero;
hOldPen = GDIPlus.SelectObject(hDC, pen.hPen);
int[] pt = new int[10];
pt[0] = rc.Left;
pt[1] = rc.Top;
pt[2] = rc.Right - 1;
pt[3] = rc.Top;
pt[4] = rc.Right - 1;
pt[5] = rc.Bottom - 1;
pt[6] = rc.Left;
pt[7] = rc.Bottom - 1;
pt[8] = rc.Left;
pt[9] = rc.Top;
GDIPlus.Polyline(hDC, pt, 5);
GDIPlus.DeleteObject(GDIPlus.SelectObject(hDC, hOldPen));
}
/// <summary>
/// Draws a rectangle.
/// </summary>
/// <param name="pen">A <see cref="PenEx"/> object that determines the color, width, and style of the rectangle. </param>
/// <param name="x">x: x-coordinate of the upper-left corner of the rectangle to draw. </param>
/// <param name="y"> y: y-coordinate of the upper-left corner of the rectangle to draw. </param>
/// <param name="cx">width: width of the rectangle to draw. </param>
/// <param name="cy">height: Height of the rectangle to draw. </param>
public void DrawRectangle(PenEx pen, int x, int y, int cx, int cy)
{
DrawRectangle(pen, new Rectangle(x, y, cx, cy));
}