public override object EditValue(System.ComponentModel.ITypeDescriptorContext context, IServiceProvider provider, object value)
{
if (context != null && context.Instance != null && provider != null)
{
IWindowsFormsEditorService service = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
if (service != null)
{
dlgDrawingBoard dlg = new dlgDrawingBoard();
DrawingLayer lst = value as DrawingLayer;
Hotspots hs = null;
IDrawingPage page = null;
hs = context.Instance as Hotspots;
if (hs == null)
{
page = context.Instance as IDrawingPage;
if (page != null)
{
dlg.Attrs = page.PageAttributes;
}
Control cOwner = context.Instance as Control;
if (cOwner != null)
{
dlg.ImgBK = cOwner.BackgroundImage;
}
DrawingLayerCollection ls = value as DrawingLayerCollection;
dlg.LoadData(ls);
}
else
{
lst = (DrawingLayer)hs.Drawings.Clone();
dlg.LoadData(hs);
hs.clearBK();
}
try
{
if (service.ShowDialog(dlg) == System.Windows.Forms.DialogResult.OK)
{
if (hs != null)
{
value = dlg.lstShapes;
hs.InitBK();
}
else
{
value = dlg.DrawingLayers;
if (page != null)
{
page.PageAttributes = dlg.Attrs;
}
}
}
else
{
if (hs != null)
{
hs.SetDrawings(lst);
hs.InitBK();
}
}
}
catch (Exception err)
{
DrawingItem.ShowMessage(err.Message);
}
}
}
return(value);
}
protected override void OnMouseDown(MouseEventArgs e)
{
sHelp = "";
if (curDrawing != null)
{
float x1, y1;
bool bAdded;
systemToCustomerXY(e.X, e.Y, out x1, out y1);
System.Windows.Forms.MouseEventArgs e1 = new System.Windows.Forms.MouseEventArgs(e.Button, e.Clicks, (int)x1, (int)y1, e.Delta);
System.Windows.Forms.DialogResult ret = curDrawing.CallDlgDrawingsMouseDown(this, e1, ref nStep, this);
switch (ret)
{
case System.Windows.Forms.DialogResult.OK:
if (nType == 0)
{
bAdded = this.DrawingLayers[0].AddDrawing(curDrawing);
}
else
{
bAdded = lstShapes.AddDrawing(curDrawing);
hs.SetDrawings(lstShapes);
formHS.Show();
formHS.TopMost = true;
formHS.Invalidate();
}
if (bAdded)
{
AddDrawing(curDrawing);
}
else
{
}
editor.SelectItem(curDrawing);
curDrawing.FinishDesign();
curDrawing = null;
nStep = 0;
editor.Show();
break;
case System.Windows.Forms.DialogResult.Cancel:
curDrawing.FinishDesign();
curDrawing = null;
nStep = 0;
editor.Show();
break;
case System.Windows.Forms.DialogResult.Retry:
nStep = 0;
break;
case System.Windows.Forms.DialogResult.None:
break;
}
this.Invalidate();
}
else
{
Point p = new Point(e.X, e.Y);
DrawingItem item = HitTest(p);
if (item != null)
{
SetItemSelection(item);
if (e.Button == MouseButtons.Right)
{
MenuItem[] menus = item.GetContextMenuItems(p);
if (menus != null && menus.Length > 0)
{
ContextMenu cm = new ContextMenu();
cm.MenuItems.AddRange(menus);
cm.Show(this, p);
}
}
}
else
{
ClearMarks();
if ((e.Button & MouseButtons.Left) == MouseButtons.Left)
{
Type t = _toolBox.SelectedToolboxItem;
if (t != null)
{
DrawingItem newObj = (DrawingItem)Activator.CreateInstance(t);
if (_defaultDrawings == null)
{
_defaultDrawings = new DefaultDrawings();
}
DrawingItem def = _defaultDrawings.GetDefaultDrawing(newObj.GetType());
if (def != null)
{
newObj.Copy(def);
}
_toolBox.ClearToolboxSelection();
newObj.ResetGuid();
makeNewName(newObj);
newObj.Page = this;
newObj.Location = p;
AddDrawing(newObj);
editor.SelectItem(newObj);
editor.RefreshPropertyGrids();
_newObj = newObj;
SetItemSelection(newObj);
}
}
}
}
}