private void pnl_canvas_MouseUp(object sender, MouseEventArgs e)
{
isClicking = false;
using (objDrawer = Graphics.FromImage(canvas))
{
switch (activeTool)
{
case Tools.Brush:
case Tools.Pen:
objDrawer.DrawImage(lastPenDrawing, 0, 0);
lastPenDrawing = null;
break;
case Tools.Line:
objDrawer.DrawLine(normalPen, lastLine[0], lastLine[1]);
lastLine = new Point[2];
break;
case Tools.Rectangle:
lastShape = new Rectangle(0, 0, 0, 0);
drawFillables(objDrawer.DrawRectangle, objDrawer.FillRectangle, createRectangle(firstPoint, lastPoint));
break;
case Tools.Circle:
lastShape = new Rectangle(0, 0, 0, 0);
drawFillables(objDrawer.DrawEllipse, objDrawer.FillEllipse, createRectangle(firstPoint, lastPoint));
break;
case Tools.Triangle:
lastTriangle = new Point[3];
drawFillables(objDrawer.DrawPolygon, objDrawer.FillPolygon, createTriangle(firstPoint, lastPoint));
break;
case Tools.RegularPolygon:
lastRegularPolygon = new Point[5];
outlineCircle = new RectangleF();
drawFillables(objDrawer.DrawPolygon, objDrawer.FillPolygon, createRegularPolygon(firstPoint, lastPoint));
break;
case Tools.IrregularPolygon:
if (checkIrregularPolygon())
{
drawFillables(objDrawer.DrawPolygon, objDrawer.FillPolygon, lastIrregularPolygon.ToArray());
lastIrregularPolygon = new List <Point>();
}
break;
case Tools.Arrow:
lastArrow = new Point[7];
drawFillables(objDrawer.DrawPolygon, objDrawer.FillPolygon, createArrow(firstPoint, lastPoint));
break;
case Tools.Selection:
if (isHolding)
{
objDrawer.DrawImage(lastImageSelection, lastSelection.Location);
}
else if (lastSelection.Width > 0 && lastSelection.Height > 0)
{
lastImageSelection = new Bitmap(lastSelection.Width, lastSelection.Height);
Graphics objSelect = Graphics.FromImage(lastImageSelection);
objSelect.DrawImage(canvas, 0, 0, lastSelection, GraphicsUnit.Pixel);
objSelect.Dispose();
}
break;
case Tools.Curve:
if (!lastCurve[3].IsEmpty)
{
objDrawer.DrawBezier(normalPen, lastCurve[0], lastCurve[2], lastCurve[3], lastCurve[1]);
lastCurve = new Point[4];
}
break;
case Tools.Star:
lastStar = new Point[6];
outlineCircle = new RectangleF();
drawFillables(objDrawer.DrawPolygon, objDrawer.FillPolygon, createStar(firstPoint, lastPoint));
break;
case Tools.Trapezoid:
lastQuad = new Point[4];
drawFillables(objDrawer.DrawPolygon, objDrawer.FillPolygon, createTrapezoid(firstPoint, lastPoint));
break;
case Tools.Diamond:
lastQuad = new Point[4];
drawFillables(objDrawer.DrawPolygon, objDrawer.FillPolygon, createDiamond(firstPoint, lastPoint));
break;
case Tools.RightTriangle:
lastTriangle = new Point[3];
drawFillables(objDrawer.DrawPolygon, objDrawer.FillPolygon, createRightTriangle(firstPoint, lastPoint));
break;
default:
break;
}
pnl_canvas.Refresh();
}
}
public override void DrawNoFill(Graphics Gp)
{
Gp.DrawBezier(PenDraw, p1, new Point((p1.X + p2.X) / 4, (p1.Y + p2.Y) / 4 + 100), new Point((p1.X + p2.X) * 3 / 4, (p1.Y + p2.Y) * 3 / 5 - 100), p2);
}