public void DrawRectangle(Rect frame, Pen pen = null, Brush brush = null)
{
if (brush != null) {
graphics.FillRectangle (brush.GetBrush (frame), Conversions.GetRectangleF (frame));
}
if (pen != null) {
var r = Conversions.GetRectangleF (frame);
graphics.DrawRectangle (pen.GetPen (), r.X, r.Y, r.Width, r.Height);
}
}
public void DrawPath(IEnumerable<PathOp> ops, Pen pen = null, Brush brush = null)
{
using (var path = new GraphicsPath ()) {
var bb = new BoundingBoxBuilder ();
var position = Point.Zero;
foreach (var op in ops) {
var mt = op as MoveTo;
if (mt != null) {
var p = mt.Point;
position = p;
bb.Add (p);
continue;
}
var lt = op as LineTo;
if (lt != null) {
var p = lt.Point;
path.AddLine (Conversions.GetPointF (position), Conversions.GetPointF (p));
position = p;
bb.Add (p);
continue;
}
var at = op as ArcTo;
if (at != null) {
var p = at.Point;
path.AddLine (Conversions.GetPointF (position), Conversions.GetPointF (p));
position = p;
bb.Add (p);
continue;
}
var ct = op as CurveTo;
if (ct != null) {
var p = ct.Point;
var c1 = ct.Control1;
var c2 = ct.Control2;
path.AddBezier (Conversions.GetPointF (position), Conversions.GetPointF (c1),
Conversions.GetPointF (c2), Conversions.GetPointF (p));
position = p;
bb.Add (p);
bb.Add (c1);
bb.Add (c2);
continue;
}
var cp = op as ClosePath;
if (cp != null) {
path.CloseFigure ();
continue;
}
throw new NotSupportedException ("Path Op " + op);
}
var frame = bb.BoundingBox;
if (brush != null) {
graphics.FillPath (brush.GetBrush (frame), path);
}
if (pen != null) {
var r = Conversions.GetRectangleF (frame);
graphics.DrawPath (pen.GetPen (), path);
}
}
}
public void DrawEllipse(Rect frame, Pen pen = null, Brush brush = null)
{
if (brush != null) {
graphics.FillEllipse (brush.GetBrush (frame), Conversions.GetRectangleF (frame));
}
if (pen != null) {
graphics.DrawEllipse (pen.GetPen (), Conversions.GetRectangleF (frame));
}
}
// Create this brush for a specific toolkit. Inner part of "GetBrush()".
internal override IToolkitBrush CreateBrush(IToolkit toolkit)
{
IToolkitBrush innerBrush = brush.GetBrush(toolkit);
return(toolkit.CreateXorBrush(innerBrush));
}
public void DrawRectangle (Rect frame, Size corner, Pen pen = null, Brush brush = null)
{
if (corner.Width > 0 || corner.Height > 0) {
using (var path = new GraphicsPath ()) {
var xdia = corner.Width * 2;
var ydia = corner.Height * 2;
if(xdia > frame.Width) xdia = frame.Width;
if(ydia > frame.Height) ydia = frame.Height;
// define a corner
var Corner = Conversions.GetRectangleF (frame);
path.AddArc (Corner, 180, 90);
// top right
Corner.X += (float)(frame.Width - xdia);
path.AddArc (Corner, 270, 90);
// bottom right
Corner.Y += (float)(frame.Height - ydia);
path.AddArc (Corner, 0, 90);
// bottom left
Corner.X -= (float)(frame.Width - xdia);
path.AddArc (Corner, 90, 90);
// end path
path.CloseFigure ();
if (brush != null) {
graphics.FillPath (brush.GetBrush (frame), path);
}
if (pen != null) {
graphics.DrawPath (pen.GetPen (), path);
}
}
}
else {
if (brush != null) {
graphics.FillRectangle (brush.GetBrush (frame), Conversions.GetRectangleF (frame));
}
if (pen != null) {
var r = Conversions.GetRectangleF (frame);
graphics.DrawRectangle (pen.GetPen (), r.X, r.Y, r.Width, r.Height);
}
}
}
// Select a brush into the toolkit graphics object.
private void SelectBrush(Brush brush)
{
if(brush == null)
{
throw new ArgumentNullException("brush");
}
if(graphics == null)
{
throw new ObjectDisposedException("graphics");
}
IToolkitBrush tbrush = brush.GetBrush(graphics.Toolkit);
tbrush.Select(graphics);
}
