private bool SubmitResizeObject()
{
bool result = false;
if (resizedObject != null)
{
// after resizing
resizedObject.Normalize();
if (wasMove)
{
resizedObject.RaiseChanged(true); // raise DrawObjChanged event
result = true;
}
resizedObject = null;
selectMode = SelectionMode.Select;
}
return(result);
}
/// <summary>
/// delete draw objcet
/// </summary>
/// <param name="drawObject"></param>
public void DeleteDrawObject(DrawObject drawObject)
{
var removeItem = graphicsList.Find(item => item.Name == drawObject.Name);
var success = graphicsList.Remove(removeItem);
}
public override void OnMouseDown(RichPictureBox richPictureBox, MouseEventArgs e)
{
wasMove = false;
Point point = new Point((int)(e.X / richPictureBox.Zoom - richPictureBox.OffsetX), (int)(e.Y / richPictureBox.Zoom - richPictureBox.OffsetY));
selectMode = SelectionMode.None;
dragBoxFromMouseDown = Rectangle.Empty;
// Test for moving or resizing (only if control is selected, cursor is on the handle)
foreach (DrawObject o in richPictureBox.GraphicsList)
{
if (o is DrawCircle)
{
continue;
}
DrawObject.HitTestResult htr = o.HitTest(richPictureBox, point, false);
if (!o.Selected) // test for drag and drop
{
if (htr.ElementType == DrawObject.ElementType.Gate)
{
Size dragSize = SystemInformation.DragSize;
dragBoxFromMouseDown = new Rectangle(new Point(e.X - (dragSize.Width / 2),
e.Y - (dragSize.Height / 2)), dragSize);
selectMode = SelectionMode.Drag;
}
}
else if (htr.ElementType == DrawTools.DrawObject.ElementType.Handle)
{
int handleNumber = htr.Index;
if (handleNumber > 0)
{
selectMode = SelectionMode.Size;
// keep resized object in class member
resizedObject = o;
resizedObjectHandle = handleNumber;
//Restore DrawPolygonFrame para
if (resizedObject is DrawPolyLine)
{
(resizedObject as DrawPolyLine).NeedReverseX = false;
(resizedObject as DrawPolyLine).NeedReverseY = false;
(resizedObject as DrawPolyLine).SetProportion = true;
}
richPictureBox.GraphicsList.UnselectAll();
o.Selected = true;
break;
}
}
else if (htr.ElementType == DrawObject.ElementType.Gate)
{
selectMode = SelectionMode.Move;
richPictureBox.Cursor = Cursors.SizeAll;
break;
}
}
// Test for selection (cursor is on the object or label)
if (selectMode == SelectionMode.None || selectMode == SelectionMode.Drag)
{
DrawObject o = null;
int gateIndex = 0;
for (int i = 0; i < richPictureBox.GraphicsList.Count; i++)
{
if (richPictureBox.GraphicsList[i] is DrawCircle)
{
continue;
}
DrawObject.HitTestResult htr = richPictureBox.GraphicsList[i].HitTest(richPictureBox, point, true);
if (htr.ElementType == DrawObject.ElementType.Gate)
{
o = richPictureBox.GraphicsList[i];
gateIndex = htr.Index;
selectMode = o.Selected ? SelectionMode.Move : SelectionMode.Select;
if (selectMode == SelectionMode.Select)
{
richPictureBox.DrawObject = o;
}
break;
}
}
if (o != null)
{
if ((Control.ModifierKeys & Keys.Control) == 0 && !o.Selected)
{
richPictureBox.GraphicsList.UnselectAll();
}
o.Selected = true;
}
}
// un-select
if (selectMode == SelectionMode.None || selectMode == SelectionMode.Drag)
{
// click on background
if ((Control.ModifierKeys & Keys.Control) == 0)
{
richPictureBox.GraphicsList.UnselectAll();
}
}
// Net selection
if (selectMode == SelectionMode.None)
{
selectMode = SelectionMode.NetSelection;
}
lastPoint.X = e.X;
lastPoint.Y = e.Y;
startPoint.X = e.X;
startPoint.Y = e.Y;
richPictureBox.Capture = true;
richPictureBox.Refresh();
}
