private void NormalPartOfUpdateMultPointCurve(UpdateCurveOperation ucof)
{
if (polygonEdgeSet.Count >= 2)
{
List <Point> tpl = new List <Point>();
polygonEdgeSet.ForEach((l) => { tpl.Add(l.firstPoint); });
tpl.Add(curPos);
if (oldSelectedCurve != null)
{
userCanvas.RemoveGraphics(oldSelectedCurve);
}
oldSelectedCurve = ucof(ref tpl);
userCanvas.AddGraphics(oldSelectedCurve);
ghs.DrawImage(userCanvas.bmp, this.ClientRectangle);
}
}
// return true if can clear old graphics
private bool NormalPartOfUpdateTwoPointGraphics(CGUserGraphics graphics)
{
bool ret = false;
if (canClearGraphics)
{
userCanvas.ClearStateOfSelectedGraphics();
userCanvas.RemoveGraphics(curUserGraphics);
ret = true;
}
userCanvas.AddGraphics(graphics);
userCanvas.SetGraphicsSelected(graphics);
ghs.DrawImage(userCanvas.bmp, this.ClientRectangle);
curUserGraphics = graphics;
canClearGraphics = true;
return(ret);
}
private void MainWindow_RightMouseDown(object sender, MouseEventArgs e)
{
// note: the order of each event when double clicked
// down -> up -> down -> dbclick -> up
if (buttonClicked == this.buttonDrawPolygon)
{
// log.write("mouse double click");
if (polygonEdgeSet.Count == 0)
{
return;
}
int dx = e.X - polygonEdgeSet[0].firstPoint.X;
int dy = e.Y - polygonEdgeSet[0].firstPoint.Y;
if (dx * dx + dy * dy > 3 * 3)
{
CGUserGraphicsLine pline = new CGUserGraphicsLine(new Point(e.X, e.Y), polygonEdgeSet[0].firstPoint);
userCanvas.AddGraphics(pline);
polygonEdgeSet.Add(pline);
}
mouseState = CGMouseState.CGMouseStateUp;
// log.write("canUpdateGraphics --> false");
canUpdateGraphics = false;
isUpdatingGraphicsWhenMouseUp = false;
userCanvas.ClearStateOfSelectedGraphics();
polygonEdgeSet.ForEach((l) => { userCanvas.RemoveGraphics(l); });
CGUserGraphicsPolygon polygon = new CGUserGraphicsPolygon(polygonEdgeSet);
userCanvas.AddGraphics(polygon);
userCanvas.SetGraphicsSelected(polygon);
ghs.DrawImage(userCanvas.bmp, this.ClientRectangle);
polygonEdgeSet.Clear();
}
else if (buttonClicked == this.buttonDrawBezier)
{
if (polygonEdgeSet.Count <= 1)
{
return;
}
if (oldSelectedCurve != null)
{
userCanvas.RemoveGraphics(oldSelectedCurve);
oldSelectedCurve = null;
}
int dx = e.X - polygonEdgeSet[0].firstPoint.X;
int dy = e.Y - polygonEdgeSet[0].firstPoint.Y;
List <Point> downPointSet = new List <Point>();
foreach (CGUserGraphicsLine l in polygonEdgeSet)
{
downPointSet.Add(l.firstPoint);
}
if (dx * dx + dy * dy < 3 * 3)
{
downPointSet.Add(polygonEdgeSet[0].firstPoint);
}
else
{
downPointSet.Add(polygonEdgeSet[polygonEdgeSet.Count - 1].nextPoint);
}
mouseState = CGMouseState.CGMouseStateUp;
// log.write("canUpdateGraphics --> false");
canUpdateGraphics = false;
isUpdatingGraphicsWhenMouseUp = false;
userCanvas.ClearStateOfSelectedGraphics();
polygonEdgeSet.ForEach((l) => { userCanvas.RemoveGraphics(l); });
polygonEdgeSet.Clear();
CGUserGraphicsBezier curve = new CGUserGraphicsBezier(downPointSet);
userCanvas.AddGraphics(curve);
userCanvas.SetGraphicsSelected(curve);
ghs.DrawImage(userCanvas.bmp, this.ClientRectangle);
downPointSet.Clear();
}
else if (buttonClicked == this.buttonDrawBStyleCurve)
{
if (polygonEdgeSet.Count <= 1)
{
return;
}
if (oldSelectedCurve != null)
{
userCanvas.RemoveGraphics(oldSelectedCurve);
oldSelectedCurve = null;
}
int dx = e.X - polygonEdgeSet[0].firstPoint.X;
int dy = e.Y - polygonEdgeSet[0].firstPoint.Y;
List <Point> downPointSet = new List <Point>();
foreach (CGUserGraphicsLine l in polygonEdgeSet)
{
downPointSet.Add(l.firstPoint);
}
if (dx * dx + dy * dy < 3 * 3)
{
downPointSet.Add(polygonEdgeSet[0].firstPoint);
}
else
{
downPointSet.Add(polygonEdgeSet[polygonEdgeSet.Count - 1].nextPoint);
}
mouseState = CGMouseState.CGMouseStateUp;
// log.write("canUpdateGraphics --> false");
canUpdateGraphics = false;
isUpdatingGraphicsWhenMouseUp = false;
userCanvas.ClearStateOfSelectedGraphics();
polygonEdgeSet.ForEach((l) => { userCanvas.RemoveGraphics(l); });
polygonEdgeSet.Clear();
CGUserGraphicsBStyleCurve curve = new CGUserGraphicsBStyleCurve(downPointSet);
userCanvas.AddGraphics(curve);
userCanvas.SetGraphicsSelected(curve);
ghs.DrawImage(userCanvas.bmp, this.ClientRectangle);
downPointSet.Clear();
}
else if (buttonClicked == this.buttonRotation ||
buttonClicked == this.buttonZoomGraphics)
{
userCanvas.SetBasePoint(new Point(e.X, e.Y));
ghs.DrawImage(userCanvas.bmp, this.ClientRectangle);
}
}
