public void Update( )
{
//get item under mouse cursor
var model = ObjectFactory.GetInstance <IModel>( );
ItemEditor item = _canvas.ItemUnderMouse;
bool controlButtonPressed = KeyboardStatus.IsKeyDown(Keys.LeftControl);
if (item != null)
{
_mainForm.SetToolStripStatusLabel1(item.ItemProperties.Name);
item.OnMouseOver(MouseStatus.WorldPosition);
if (controlButtonPressed)
{
_mainForm.SetCursorForCanvas(_cursorDuplicate);
}
}
else
{
_mainForm.SetToolStripStatusLabel1(string.Empty);
}
if (item != _lastItem && _lastItem != null)
{
_lastItem.OnMouseOut( );
}
_lastItem = item;
IEnumerable <ITreeItem> editors = selectedEditors( ).ToList( );
if (MouseStatus.IsNewLeftMouseButtonClick() || KeyboardStatus.IsNewKeyPress(Keys.D1))
{
if (item != null)
{
item.OnMouseButtonDown(MouseStatus.WorldPosition);
}
if (controlButtonPressed && item != null)
{
_canvas.StartCopyingSelectedItems( );
}
else if (KeyboardStatus.IsKeyDown(Keys.LeftShift) && item != null)
{
model.ToggleSelectionOnItem(item);
}
else if (editors.Contains(item))
{
_canvas.StartMovingSelectedItems( );
}
else if (!selectedEditors().Contains(item))
{
if (item != null)
{
_model.SelectEditor(item);
_canvas.StartMovingSelectedItems( );
}
else
{
_canvas.CreateSelectionRectangle( );
}
}
}
//MIDDLE MOUSE BUTTON CLICK
bool anyEditorsSelected = editors.Any();
if (MouseStatus.IsNewMiddleMouseButtonClick( ) || KeyboardStatus.IsNewKeyPress(Keys.D2))
{
if (item != null)
{
item.OnMouseOut( );
}
if (controlButtonPressed)
{
_canvas.StartMovingCamera( );
}
else
{
if (anyEditorsSelected)
{
_canvas.StartRotatingItems( );
}
}
}
//RIGHT MOUSE BUTTON CLICK
if (MouseStatus.IsNewRightMouseButtonClick( ) || KeyboardStatus.IsNewKeyPress(Keys.D3))
{
if (item != null)
{
item.OnMouseOut( );
}
if (anyEditorsSelected)
{
_canvas.StartScalingSelectedItems( );
}
}
selectedEditors( ).ForEach(e => e.HandleKeyPressWhenFocused());
}