public void Add(Polygon p)
{
polyList.Add(p);
}
public void Remove(Polygon p)
{
polyList.Remove(p);
selectedIndex = -1;
}
private Range MinMaxRangeFromPolygon(Polygon poly, bool X)
{
Range range = new Range(Math.Max(ClientRectangle.Width, ClientRectangle.Height), -1);
if (X)
{
foreach (Point p in poly.Corners)
{
if (p.X > range.Max) range.Max = p.X;
if (p.X < range.Min) range.Min = p.X;
}
}
else
{
foreach (Point p in poly.Corners)
{
if (p.Y > range.Max) range.Max = p.Y;
if (p.Y < range.Min) range.Min = p.Y;
}
}
return range;
}
private int FindIndexFromPolygon(Polygon poly)
{
for (int i = 0; i < polyList.Count; i++)
{
if (polyList[i] == poly) return i;
}
return -1;
}
private void ChangeZIndex(Polygon selected)
{
polyList.Remove(selected);
polyList.Add(selected);
this.Invalidate();
}
private void Canvas_MouseUp(Object sender, MouseEventArgs e)
{
if (Mode == Modes.DRAWMODE && drawRect != null)
{
drawRect.EndPoint = e.Location;
Polygon poly = new Polygon(drawRect.StartPoint, Settings.DefaultColor);
Point[] corners = new Point[4];
corners[0] = drawRect.StartPoint;
corners[1] = new Point(drawRect.StartPoint.X, drawRect.EndPoint.Y);
corners[2] = drawRect.EndPoint;
corners[3] = new Point(drawRect.EndPoint.X, drawRect.StartPoint.Y);
poly.Corners = corners;
polyList.Add(poly);
}
Mode = Modes.NONE;
mouseClicked = false;
newNodeCreated = false;
if (selectedIndex != -1)
polyList[selectedIndex].SelectedCorner = -1;
this.Invalidate();
}
private void Canvas_MouseMove(Object sender, MouseEventArgs e)
{
if (Mode == Modes.SHAPEMODE)
if (e.Button == MouseButtons.Right)
{
if (!newNodeCreated)
{
AddCornerToList(polyList[selectedIndex].Corners[polyList[selectedIndex].SelectedCorner], polyList[selectedIndex].Corners[polyList[selectedIndex].SelectedCorner]);
newNodeCreated = true;
}
polyList[selectedIndex].Corners[polyList[selectedIndex].SelectedCorner + 1] = new Point(e.X, e.Y);
}
else if (e.Button == MouseButtons.Left)
polyList[selectedIndex].Corners[polyList[selectedIndex].SelectedCorner] = new Point(e.X, e.Y);
if (Mode == Modes.DRAGMODE)
{
if (e.Button == MouseButtons.Left)
{
Point oldDragPoint = polyList[selectedIndex].DragPoint;
polyList[selectedIndex].DragPoint = new Point(e.X, e.Y);
for (int i = 0; i < polyList[selectedIndex].Corners.Length; i++)
{
polyList[selectedIndex].Corners[i].X += (polyList[selectedIndex].DragPoint.X - oldDragPoint.X);
polyList[selectedIndex].Corners[i].Y += (polyList[selectedIndex].DragPoint.Y - oldDragPoint.Y);
}
}
else if (e.Button == MouseButtons.Middle)
{
Remove(polyList[selectedIndex]);
}
}
if (Mode == Modes.DRAWMODE && drawRect != null)
{
drawRect.EndPoint = e.Location;
drawPolygon = new Polygon(drawRect.StartPoint, Settings.DefaultColor);
Point[] corners = new Point[4];
corners[0] = drawRect.StartPoint;
corners[1] = new Point(drawRect.StartPoint.X, drawRect.EndPoint.Y);
corners[2] = drawRect.EndPoint;
corners[3] = new Point(drawRect.EndPoint.X, drawRect.StartPoint.Y);
drawPolygon.Corners = corners;
}
if (Mode != Modes.DRAWMODE)
{
if (GetPolygonFromPoint(e.Location) != null)
{
this.Cursor = Cursors.SizeAll;
}
else this.Cursor = Cursors.Arrow;
}
this.Invalidate();
}