public void Add(DrawObject obj)
{
// insert to the top of z-order
_graphicsList.Insert(0, obj);
}
private void Point_MouseDown(object sender, MouseEventArgs e)
{
_selectMode = SelectionMode.None;
var downPoint = new Point(e.X, e.Y);
int selectObject = Now_Select_Object_Is(downPoint);
if (selectObject > -1)
{
Now_Select_Grid_Row(selectObject);
}
// Test for resizing (only if control is selected, cursor is on the handle)
foreach (DrawObject o in _graphicsList.Selection)
{
selectedListNo++;
int handleNumber = o.HitTest(downPoint);
Trace.WriteLine(handleNumber.ToString());
if (handleNumber > 0)
{
_selectMode = SelectionMode.Size;
// keep resized object in class member
_resizedObject = o;
_resizedObjectHandle = handleNumber;
// Since we want to resize only one object, unselect all other objects
_graphicsList.UnselectAll();
o.Selected = true;
break;
}
}
// Test for move (cursor is on the object)
if (_selectMode == SelectionMode.None)
{
int n1 = _graphicsList.Count;
DrawObject o = null;
for (int i = 0; i < n1; i++)
{
if (_graphicsList[i].HitTest(downPoint) == 0)
{
o = _graphicsList[i];
break;
}
}
if (o != null)
{
_selectMode = SelectionMode.Move;
// Unselect all if Ctrl is not pressed and clicked object is not selected yet
if ((ModifierKeys & Keys.Control) == 0 && !o.Selected)
{
_graphicsList.UnselectAll();
}
// Select clicked object
o.Selected = true;
pictureBox1.Cursor = Cursors.SizeAll;
}
}
// Net selection
if (_selectMode == SelectionMode.None)
{
// click on background
if ((ModifierKeys & Keys.Control) == 0)
{
_graphicsList.UnselectAll();
}
_selectMode = SelectionMode.NetSelection;
}
_lastPoint.X = e.X;
_lastPoint.Y = e.Y;
_startPoint.X = e.X;
_startPoint.Y = e.Y;
pictureBox1.Capture = true;
pictureBox1.Refresh();
if (_selectMode == SelectionMode.NetSelection)
{
// Draw selection rectangle in initial position
ControlPaint.DrawReversibleFrame(
RectangleToScreen(DrawRectangle.GetNormalizedRectangle(_startPoint, _lastPoint)), Color.Black,
FrameStyle.Dashed);
}
}
