private void UpdateEllipse(int ScreenMouseX, int ScreenMouseY, int ScreenDeltaX, int ScreenDeltaY)
{
BoundaryEllipse oEllipse = BoundaryEllipseList.GetFrom(CurrentlySelectedHole.HoleTypeIndex);
PointF pWorld = this.S2W(ScreenMouseX, ScreenMouseY);
float newx = pWorld.X;
float newy = pWorld.Y;
// Update the world points to the nearest grid
if (this.GridSize > 1)
{
newx = this.RoundToGrid((int)pWorld.X);
newy = this.RoundToGrid((int)pWorld.Y);
}
switch (CurrentlySelectedHandleType)
{
case eHandleType.MoveHandle:
CurrentlySelectedHole.OffsetX = newx;
CurrentlySelectedHole.OffsetY = newy;
break;
case eHandleType.ResizeHandle:
// Get the hole struct and change the size
switch (CurrentlySelectedHole.HoleType)
{
case "ell":
oEllipse.Width += ScreenDeltaX * 2;
oEllipse.Height += ScreenDeltaY * 2;
break;
}
break;
}
}
//----------------------------------------------------------------------------
private bool TrySelectEllipse(LayoutHole oHole, int ScreenMouseX, int ScreenMouseY)
{
PointF MoveHandle = new PointF(0, 0);
PointF ResizeHandle = new PointF(0, 0);
BoundaryEllipse oEllipse = BoundaryEllipseList.GetFrom(oHole.HoleTypeIndex);
// The move handle is the center
MoveHandle = this.W2S(oHole.OffsetX, oHole.OffsetY);
if (IsHitOnTarget(ScreenMouseX, ScreenMouseY, MoveHandle))
{
CurrentlySelectedHole = oHole;
MostRecentlySelectedHole = oHole;
CurrentlySelectedHandleType = eHandleType.MoveHandle;
return(true);
}
// The resize handle is the lower right corner
ResizeHandle = this.W2S(oHole.OffsetX + oEllipse.Width / 2, oHole.OffsetY + oEllipse.Height / 2);
if (IsHitOnTarget(ScreenMouseX, ScreenMouseY, ResizeHandle))
{
CurrentlySelectedHole = oHole;
MostRecentlySelectedHole = oHole;
CurrentlySelectedHandleType = eHandleType.ResizeHandle;
return(true);
}
return(false);
}
public void DuplicateCurrentHole()
{
if (MostRecentlySelectedHole == null)
{
return;
}
LayoutHole oHole = LayoutHole.CopyFrom(MostRecentlySelectedHole);
// Add at an offset so it will be easy to see
oHole.OffsetX += 10;
oHole.OffsetY += 10;
// Create a new version of the instance of the hole
int ndx = MostRecentlySelectedHole.HoleTypeIndex;
switch (MostRecentlySelectedHole.HoleType)
{
case "ell":
oHole.HoleTypeIndex = BoundaryEllipseList.Count;
BoundaryEllipse e = BoundaryEllipseList.GetFrom(ndx);
BoundaryEllipseList.Add(BoundaryEllipse.CopyFrom(e));
break;
case "rect":
oHole.HoleTypeIndex = BoundaryRectangleList.Count;
BoundaryRectangle r = BoundaryRectangleList.GetFrom(ndx);
BoundaryRectangleList.Add(BoundaryRectangle.CopyFrom(r));
break;
case "poly":
oHole.HoleTypeIndex = BoundaryPolygonList.Count;
BoundaryPolygon p = BoundaryPolygonList.GetFrom(ndx);
BoundaryPolygonList.Add(BoundaryPolygon.CopyFrom(p));
break;
}
// Add the new hole to the hole group
AddHoleToHoleGroup(MostRecentlySelectedHoleGroup, oHole);
// trigger a repaint
DrawShapes();
}
//-------------------------------------------------------
private void DrawShapes_Ellipse(LayoutHole oHole, bool IsCurrentHole)
{
BoundaryEllipse oEllipse = BoundaryEllipseList.GetFrom(oHole.HoleTypeIndex);
PointF Screen = this.W2S(oHole.OffsetX, oHole.OffsetY);
float SWidth = oEllipse.Width / CurrentZoom;
float SHeight = oEllipse.Height / CurrentZoom;
string color = IsCurrentHole ? "#0000FF" : "rgba(255,0,0,.5)";
// Draw the move handle
this.DrawCircle(color, 10, Screen.X, Screen.Y);
// draw the actual ellipse
this.DrawEllipse(ShapeStrokeColor, SWidth, SHeight, Screen.X, Screen.Y);
// draw the resize handle
this.DrawRectangle("rgba(0,255,0,.5)", 10, 10, Screen.X + SWidth / 2, Screen.Y + SHeight / 2);
}