private void CreateObjects()
{
brSolid = new SolidBrushPlus(Color.CornflowerBlue);
penSolid = new PenPlus(Color.Red, 10);
penSolid.SetEndCap(LineCap.LineCapRound);
penSolid.SetStartCap(LineCap.LineCapArrowAnchor);
brHatch = new HatchBrush(HatchStyle.HatchStyle25Percent,
Color.Black, Color.White);
penHatch = new PenPlus(brHatch, 10);
penSolidTrans = new PenPlus(Color.FromArgb(-0x5f7f7f7f), 10);
penSolidCustomCap = new PenPlus(Color.Black, 20);
GraphicsPath path = new GraphicsPath(FillMode.FillModeAlternate);
path.AddEllipse(-0.5f, -1.5f, 1, 3);
CustomLineCap cap = new CustomLineCap(null, path, LineCap.LineCapFlat, 0);
penSolidCustomCap.SetCustomEndCap(cap);
penDash = new PenPlus(Color.Black, 5);
penDash.SetDashStyle(DashStyle.DashStyleDot);
brGrad = new LinearGradientBrush(
new GpPointF(0, 0), new GpPointF(100, 100),
Color.Black, Color.White);
penGradient = new PenPlus(brGrad, 30);
}
private void drawRotatedArrow(GraphicsPlus graphics)
{
Debug.WriteLine("drawRotatedArrow: " + this.rotationAngle, this.ToString());
Point center = new Point(this.Width / 2, this.Height / 2);
int arWidthHalf = ARROW_WIDTH / 2;
//int arHeightHalf = ARROW_HEIGHT / 2;
Point[] arrowPoints = {
new Point(center.X, center.Y - arWidthHalf),
new Point(center.X - 2*arWidthHalf/3, center.Y + arWidthHalf),
new Point(center.X + 2*arWidthHalf/3, center.Y + arWidthHalf),
new Point(center.X, center.Y + arWidthHalf/2)
};
Debug.WriteLine("drawRotatedArrow: points "
+ PointUtil.pointsStr(arrowPoints), this.ToString());
PointMath.RotatePoints(arrowPoints, center, this.rotationAngle);
Debug.WriteLine("drawRotatedArrow: points "
+ PointUtil.pointsStr(arrowPoints), this.ToString());
graphics.SetSmoothingMode(SmoothingMode.SmoothingModeAntiAlias);
PenPlus pen = new PenPlus(ARROW_COLOR, 3);
pen.SetEndCap(LineCap.LineCapRound);
pen.SetStartCap(LineCap.LineCapRound);
graphics.DrawLine(pen, new GpPoint(arrowPoints[0].X, arrowPoints[0].Y),
new GpPoint(arrowPoints[1].X, arrowPoints[1].Y));
graphics.DrawLine(pen, new GpPoint(arrowPoints[1].X, arrowPoints[1].Y),
new GpPoint(arrowPoints[3].X, arrowPoints[3].Y));
graphics.DrawLine(pen, new GpPoint(arrowPoints[3].X, arrowPoints[3].Y),
new GpPoint(arrowPoints[2].X, arrowPoints[2].Y));
graphics.DrawLine(pen, new GpPoint(arrowPoints[2].X, arrowPoints[2].Y),
new GpPoint(arrowPoints[0].X, arrowPoints[0].Y));
pen.Dispose();
}
private void TestGdiPlus(GraphicsPlus graphics)
{
graphics.DrawImage(bmp, 0, 0, ClientRectangle.Width, ClientRectangle.Height);
PenPlus pen;
graphics.SetSmoothingMode(SmoothingMode.SmoothingModeAntiAlias);
pen= new PenPlus(Color.Black, 15);
pen.SetEndCap(LineCap.LineCapRound);
pen.SetStartCap(LineCap.LineCapRound);
pen.SetWidth(3);
pen.SetColor(Color.FromArgb(0x7f7f7f7f));
pen.SetWidth(40);
graphics.DrawLine(pen, 20, 20, ClientRectangle.Right - 20, ClientRectangle.Bottom - 20);
graphics.DrawLine(pen, ClientRectangle.Right - 20, 20, 20, ClientRectangle.Bottom - 20);
SmoothingMode mode = graphics.GetSmoothingMode();
graphics.SetSmoothingMode(SmoothingMode.SmoothingModeAntiAlias);
foreach(GraphicsPath p in allPaths)
graphics.DrawPath(penWrite, p);
graphics.SetSmoothingMode(mode);
pen.Dispose();
}
private void drawDirectionLinePlus(GraphicsPlus graphics)
{
graphics.SetSmoothingMode(SmoothingMode.SmoothingModeAntiAlias);
PenPlus pen = new PenPlus(TARGET_LINE_COLOR, 3);
pen.SetEndCap(LineCap.LineCapRound);
pen.SetStartCap(LineCap.LineCapRound);
graphics.DrawLine(pen, this.Width / 2, this.Height / 2, targetPoint.X, targetPoint.Y);
pen.Dispose();
}