private void showDrawingBoard(object sender, EventArgs e)
{
MenuItem mi = sender as MenuItem;
if (mi != null)
{
DrawingPage page = mi.Tag as DrawingPage;
if (page != null)
{
IDesignerHost host = (IDesignerHost)this.GetService(typeof(IDesignerHost));
if (host != null)
{
HostSurface surface = host.GetService(typeof(DesignSurface)) as HostSurface;
if (surface != null)
{
ClassPointer root = surface.Loader.GetRootId();
DrawingLayerCollection layers = page.ShowDrawingsEditor();
if (layers != null)
{
//layers0 is the existing layer collections
DrawingLayerCollection layers0 = page.DrawingLayers;
//for layers0 if a drawing object's guid does not exist in layers then
//the object has been deleted
List <DrawingItem> deleted = new List <DrawingItem>();
foreach (DrawingLayer l0 in layers0)
{
DrawingItem d = null;
for (int i = 0; i < l0.Count; i++)
{
DrawingItem d0 = l0[i];
d = layers.GetDrawingItemById(d0.DrawingId);
if (d != null)
{
d0.Copy(d); //not deleted
//move and resize the IDrawDesignControl
foreach (Control c in page.Controls)
{
IDrawDesignControl dc0 = c as IDrawDesignControl;
if (dc0 != null)
{
if (dc0.Item == d0)
{
c.Location = d0.Location;
c.Size = d0.Bounds.Size;
break;
}
}
}
}
else
{
deleted.Add(d0); //deleted
}
}
}
if (deleted.Count > 0)
{
//check to see if each deleted item has usages
List <DrawingItem> ls = new List <DrawingItem>();
foreach (DrawingItem d0 in deleted)
{
for (int i = 0; i < page.Controls.Count; i++)
{
IDrawDesignControl dc = page.Controls[i] as IDrawDesignControl;
if (dc != null)
{
if (dc.DrawingId == d0.DrawingId)
{
uint id = root.ObjectList.GetObjectID(dc);
if (id == 0)
{
DesignUtil.WriteToOutputWindow("id not found on deleting component {0}", dc.Name);
}
else
{
List <ObjectTextID> list = root.GetComponentUsage(id);
if (list.Count > 0)
{
dlgObjectUsage dlg = new dlgObjectUsage();
dlg.LoadData("Cannot delete this component. It is being used by the following objects", string.Format("Component - {0}", dc.Name), list);
dlg.ShowDialog();
ls.Add(d0);
}
}
break;
}
}
}
}
if (ls.Count > 0)
{
foreach (DrawingItem d0 in ls)
{
deleted.Remove(d0);
}
}
foreach (DrawingItem d0 in deleted)
{
for (int i = 0; i < page.Controls.Count; i++)
{
IDrawDesignControl dc = page.Controls[i] as IDrawDesignControl;
if (dc != null)
{
if (dc.DrawingId == d0.DrawingId)
{
surface.Loader.DeleteComponent(page.Controls[i]);
break;
}
}
}
}
}
//for a drawing object in layers if its guid does not exist in layers0 then
//it is a new object
//reset zorder according to the new layers
List <Control> ctrls = new List <Control>();
foreach (DrawingLayer l in layers)
{
int zOrder = 0;
foreach (DrawingItem d in l)
{
DrawingItem d0 = layers0.GetDrawingItemById(d.DrawingId);
if (d0 == null)
{
//add a new drawing
string name = d.Name + Guid.NewGuid().GetHashCode().ToString("x");
Type designerType = TypeMappingAttribute.GetMappedType(d.GetType());
if (designerType == null)
{
throw new DesignerException("Drawing type {0} does not have a designer", d.GetType());
}
Control dc = (Control)surface.Loader.CreateComponent(designerType, name);
IDrawDesignControl ddc = (IDrawDesignControl)dc;
ddc.Item = d;
dc.Location = d.Location;
dc.Size = d.Bounds.Size;
ctrls.Add(dc);
ddc.ZOrder = zOrder;
}
else
{
for (int k = 0; k < page.Controls.Count; k++)
{
IDrawDesignControl dc = page.Controls[k] as IDrawDesignControl;
if (dc != null)
{
if (dc.Item == d0)
{
dc.ZOrder = zOrder;
break;
}
}
}
}
zOrder += 10;
}
}
if (ctrls.Count > 0)
{
page.Controls.AddRange(ctrls.ToArray());
}
page.LoadData(layers, false);
page.Refresh();
surface.SetModified();
surface.Loader.NotifyChanges();
}
}
}
}
}
}
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);
}
}
}
}
}