private void OnListBoxDoubleClick(object sener, EventArgs e)
{
IToolboxUser docDes = null;
SelfHostToolboxItem selectedItem = listBox.SelectedItem as SelfHostToolboxItem;
if (selectedItem == null)
{
return;
}
this.currentSelection = selectedItem.ComponentType;
IDesignerHost host = (IDesignerHost)provider.GetService(typeof(IDesignerHost)); //des.ActiveDesigner;
if (host != null && this.currentSelection != null)
{
IDesigner designer = host.GetDesigner(host.RootComponent);
if (designer is IToolboxUser)
{
docDes = (IToolboxUser)designer;
}
if (docDes != null)
{
ToolboxItem c = ToolboxService.GetToolboxItem(this.currentSelection);
Debug.Assert(c != null, "Class " + this.currentSelection.FullName + " does not exist");
if (c != null && docDes.GetToolSupported(c))
{
try
{
docDes.ToolPicked(c);
}
catch (Exception ex)
{
IUIService uis = (IUIService)provider.GetService(typeof(IUIService));
if (uis != null)
{
uis.ShowError(ex);
}
else
{
MessageBox.Show("Error: " + ex.ToString());
}
}
}
}
else
{
object o = Activator.CreateInstance(this.currentSelection);
SequentialWorkflowActivity service = host.RootComponent as SequentialWorkflowActivity;
service.Activities.Add(o as Activity);
host.RootComponent.Site.Container.Add(o as IComponent);
}
}
}
//Start the drag drop when user selects and drags the tool
private void OnListBoxMouseMove(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left && this.listBox.SelectedItem != null)
{
SelfHostToolboxItem selectedItem = listBox.SelectedItem as SelfHostToolboxItem;
if (selectedItem == null || selectedItem.ComponentType == null)
{
return;
}
ToolboxItem toolboxItem = ToolboxService.GetToolboxItem(selectedItem.ComponentType);
IDataObject dataObject = this.SerializeToolboxItem(toolboxItem) as IDataObject;
DragDropEffects effects = DoDragDrop(dataObject, DragDropEffects.Copy | DragDropEffects.Move);
}
}
private void OnListBoxClick(object sender, EventArgs eevent)
{
SelfHostToolboxItem toolboxItem = listBox.SelectedItem as SelfHostToolboxItem;
if (toolboxItem != null)
{
this.currentSelection = toolboxItem.ComponentType;
}
else if (this.currentSelection != null)
{
int index = this.listBox.Items.IndexOf(this.currentSelection);
if (index >= 0)
{
this.listBox.SelectedIndex = index;
}
}
}
private void OnDrawItem(object sender, DrawItemEventArgs e)
{
Graphics g = e.Graphics;
ListBox listBox = (ListBox)sender;
object objItem = listBox.Items[e.Index];
SelfHostToolboxItem item = null;
Bitmap bitmap = null;
string text = null;
if (objItem is string)
{
bitmap = null;
text = (string)objItem;
}
else
{
item = (SelfHostToolboxItem)objItem;
bitmap = (Bitmap)item.Glyph; // if it's not a bitmap, it's a metafile, and how likely is that?
text = item.Name;
}
bool selected = false;
bool disabled = false;
if ((e.State & DrawItemState.Selected) == DrawItemState.Selected)
{
selected = true;
}
if ((int)(e.State & (DrawItemState.Disabled | DrawItemState.Grayed | DrawItemState.Inactive)) != 0)
{
disabled = true;
}
StringFormat format = new StringFormat();
format.HotkeyPrefix = HotkeyPrefix.Show;
int x = e.Bounds.X + 4;
x += 20;
if (selected)
{
Rectangle r = e.Bounds;
r.Width--; r.Height--;
g.DrawRectangle(SystemPens.ActiveCaption, r);
}
else
{
g.FillRectangle(SystemBrushes.Menu, e.Bounds);
using (Brush border = new SolidBrush(Color.FromArgb(Math.Min(SystemColors.Menu.R + 15, 255), Math.Min(SystemColors.Menu.G + 15, 255), Math.Min(SystemColors.Menu.B + 15, 255))))
g.FillRectangle(border, new Rectangle(e.Bounds.X, e.Bounds.Y, 20, e.Bounds.Height));
}
if (bitmap != null)
{
g.DrawImage(bitmap, e.Bounds.X + 2, e.Bounds.Y + 2, bitmap.Width, bitmap.Height);
}
Brush textBrush = (disabled) ? new SolidBrush(Color.FromArgb(120, SystemColors.MenuText)) : SystemBrushes.FromSystemColor(SystemColors.MenuText);
Font f = new Font("Courier", 8);
g.DrawString(text, f, textBrush, x, e.Bounds.Y + 2, format);
if (disabled)
{
textBrush.Dispose();
}
format.Dispose();
}
public void AddToolBoxItem(SelfHostToolboxItem item)
{
listBox.Items.Add(item);
}
