private void Form1_MouseDown(object sender, MouseEventArgs e)
{
switch (mouseMode)
{
case Mode.Quiescent:
{
if (gripManager.OnMouseDown(e.X, e.Y))
{
mouseMode = Mode.DragDrop;
}
else
{
using (Teigha.GraphicsSystem.View pView = helperDevice.ActiveView)
{
selRect = new RectFram(toEyeToWorld(e.X, e.Y));
pView.Add(selRect);
startSelPoint = new Point2d(e.X, e.Y);
Invalidate();
mouseMode = Mode.Selection;
}
}
break;
}
case Mode.Selection:
{
using (Teigha.GraphicsSystem.View pView = helperDevice.ActiveView)
{
pView.Select(new Point2dCollection(new Point2d[] { startSelPoint, new Point2d(e.X, e.Y) }),
new SR(selected, database.CurrentSpaceId), startSelPoint.X < e.X ? Teigha.GraphicsSystem.SelectionMode.Window : Teigha.GraphicsSystem.SelectionMode.Crossing);
pView.Erase(selRect);
selRect = null;
gripManager.updateSelection(selected);
helperDevice.Invalidate();
Invalidate();
}
mouseMode = Mode.Quiescent;
break;
}
case Mode.DragDrop:
{
using (Teigha.GraphicsSystem.View pView = helperDevice.ActiveView)
{
gripManager.DragFinal(toEyeToWorld(e.X, e.Y), true);
helperDevice.Model.Invalidate(InvalidationHint.kInvalidateAll);
Invalidate();
}
mouseMode = Mode.Quiescent;
break;
}
default:
break;
}
}
private void Form1_KeyDown(object sender, KeyEventArgs e)
{
switch (e.KeyCode)
{
case Keys.Escape:
switch (mouseMode)
{
case Mode.DragDrop:
{
using (Teigha.GraphicsSystem.View pView = helperDevice.ActiveView)
{
gripManager.DragFinal(new Point3d(), false);
helperDevice.Model.Invalidate(InvalidationHint.kInvalidateAll);
Invalidate();
}
break;
}
case Mode.Selection:
if (selRect != null)
{
using (Teigha.GraphicsSystem.View pView = helperDevice.ActiveView)
{
pView.Erase(selRect);
selRect = null;
}
}
break;
}
mouseMode = Mode.Quiescent;
foreach (ObjectId id in selected)
{
gripManager.removeEntityGrips(id, true);
}
selected.Clear();
if (helperDevice != null)
{
helperDevice.Invalidate();
}
Invalidate();
break;
case Keys.Oemplus:
break;
case Keys.OemMinus:
break;
}
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
if (selRect != null)
{
helperDevice.ActiveView.Erase(selRect);
}
selRect = null;
gripManager.uninit();
gripManager = null;
if (graphics != null)
{
graphics.Dispose();
}
if (helperDevice != null)
{
helperDevice.Dispose();
}
if (database != null)
{
database.Dispose();
}
dd.Dispose();
}
