private Controller()
{
itemTextBuilder = new ItemTextBuilder();
TrackingController = new TrackingController();
SelectionCommand = Canguro.Commands.View.Selection.Instance;
commands.Add("select", SelectionCommand);
loadCommands();
services = null;
modelCmd = null;
lastViewCmd = null;
viewCmd = SelectionCommand;
executeQueue = new Queue <string>();
Idle += new EventHandler(flushExecuteQueue);
}
private Controller()
{
itemTextBuilder = new ItemTextBuilder();
TrackingController = new TrackingController();
SelectionCommand = Canguro.Commands.View.Selection.Instance;
commands.Add("select", SelectionCommand);
loadCommands();
services = null;
modelCmd = null;
lastViewCmd = null;
viewCmd = SelectionCommand;
executeQueue = new Queue<string>();
Idle += new EventHandler(flushExecuteQueue);
}
/// <summary>
/// Method called when a model command ends or is cancelled
/// </summary>
private void endModelCommand()
{
if (modelCmd != null)
{
modelCmd.Cancel = true;
}
mainFrm.ReportProgress("", 0, "", 0, DateTime.Now.AddMilliseconds(1));
if (!mainFrm.SmallPanel.IsDisposed && !mainFrm.SmallPanel.Disposing)
{
mainFrm.SmallPanel.Stop();
}
mainFrm.HideCommandToolbox();
Model.Model.Instance.Undo.Commit();
modelCmd = null;
if (services != null)
{
services.Dispose();
services = null;
}
TrackingController.TrackingService = null;
TrackingController.ResetStatus(Canguro.View.GraphicViewManager.Instance.ActiveView);
TrackingController.SnapController.IsActive = false;
TrackingController.SnapController.PrimaryPoint = Snap.PointMagnet.ZeroMagnet;
// Reset selection
SelectionCommand.Start(null);
viewCmd = SelectionCommand;
mainFrm.ScenePanel.Cursor = viewCmd.Cursor;
if (EndModelCommand != null)
{
EndModelCommand(this, EventArgs.Empty);
}
}
/// <summary>
/// Este método es llamado como resultado de una acción del usuario, no de algún otro comando.
/// Por esto sus mensajes de error se mandan al usuario como avisos y se resuelven aquí mismo
/// en lugar de aventar excepciones.
/// </summary>
/// <param name="command">El nombre del comando a ejecutar</param>
/// <returns>True if the command executed successfully. False otherwise.</returns>
public bool Execute(string command)
{
// Clean command
command = command.Trim().ToLowerInvariant();
// Check cancel first
if (command.Equals("cancel"))
{
// Cancel View Command, Model Command and Selection if applicable
// (in that order, only one action per cancel)
if ((viewCmd != SelectionCommand || Canguro.View.GraphicViewManager.Instance.ActiveView.ModelRenderer.RenderOptions.ShowAnimated) && EndViewCommand != null)
{
EndViewCommand(this, new EndViewCommandArgs(viewCmd));
}
else
{
if (modelCmd != null)
{
if (!modelCmd.AllowCancel())
{
return(false);
}
endModelCommand();
}
else
{
// If there was no ModelCommand, clear and reset selection
Canguro.Model.Model.Instance.UnSelectAll();
SelectionCommand.Reset();
}
}
IdleReset();
viewCmd = SelectionCommand;
if (StartViewCommand != null)
{
StartViewCommand(this, EventArgs.Empty);
}
mainFrm.ScenePanel.Cursor = SelectionCommand.DefaultCursor;
return(true);
}
// Check if command exists
if (!commands.ContainsKey(command))
{
System.Windows.Forms.MessageBox.Show(Culture.Get("CommandNotFound") + ": '" + command + "'", Culture.Get("ActionNotPossibleTitle"), System.Windows.Forms.MessageBoxButtons.OK, System.Windows.Forms.MessageBoxIcon.Error);
return(false);
}
// Execute Command
// Prioritize View Commands
Command cmd = commands[command];
if (cmd is ViewCommand)
{
// If a series of viewCommands has ended (entered SelectionCommand)
// then send the EndViewCommand signal
// If Selection was doing anything and the viewCmd changes to zoom, pan, rotate, etc.
// (exits selection mode), reset SelectionCommand
if ((cmd == SelectionCommand) && (viewCmd != SelectionCommand) && (EndViewCommand != null))
{
EndViewCommand(this, new EndViewCommandArgs(viewCmd));
}
else if ((cmd != SelectionCommand) && (viewCmd == SelectionCommand))
{
// Tal vez en lugar de un Reset sea mejor un Cancel, para no perder el tracking
SelectionCommand.Reset();
}
// Instantiate and run new ViewCommand
ViewCommand lastViewCmd = viewCmd;
viewCmd = (ViewCommand)cmd;
if (StartViewCommand != null)
{
StartViewCommand(this, EventArgs.Empty);
}
if (viewCmd.SavePrevious)
{
GraphicViewManager.Instance.SavePreviousActiveView();
//System.Console.WriteLine("SavePrevious");
}
if (viewCmd.IsInteractive)
{
mainFrm.ScenePanel.Cursor = viewCmd.Cursor;
}
else
{
viewCmd.Run(GraphicViewManager.Instance.ActiveView);
GraphicViewManager.Instance.updateView(false);
if (EndViewCommand != null)
{
EndViewCommand(this, new EndViewCommandArgs(viewCmd));
}
if (lastViewCmd == SelectionCommand)
{
viewCmd = SelectionCommand;
}
else
{
//if (lastViewCmd.SavePrevious && viewCmd != Commands.View.ZoomPrevious.Instance)
//{
// GraphicViewManager.Instance.SavePreviousActiveView();
// System.Console.WriteLine("SavePrevious");
//}
//viewCmd = lastViewCmd;
Execute("select");
}
if (StartViewCommand != null)
{
StartViewCommand(this, EventArgs.Empty);
}
}
}
else if (cmd is ModelCommand)
{
if (modelCmd == null)
{
// Por el momento funcionan en el mismo hilo, por lo que al terminar la
// llamada a Run se puede asignar modelCmd = null y services = null
modelCmd = (ModelCommand)cmd;
modelCmd.Cancel = false;
try
{
if (StartModelCommand != null)
{
StartModelCommand(this, EventArgs.Empty);
}
modelCmd.Run(services = new CommandServices(this));
}
catch (CancelCommandException) { Model.Model.Instance.Undo.Rollback(); }
catch (Exception ex) { System.Diagnostics.Debug.WriteLine("Controller.Execute: {0}", ex.Message); }
finally
{
endModelCommand();
}
}
else
{
System.Windows.Forms.MessageBox.Show(Culture.Get("ModelCmdAlreadyExecuting"), Culture.Get("ActionNotPossibleTitle"), System.Windows.Forms.MessageBoxButtons.OK, System.Windows.Forms.MessageBoxIcon.Error);
return(false);
}
}
return(true);
}
/// <summary>
/// Method called when a model command ends or is cancelled
/// </summary>
private void endModelCommand()
{
if (modelCmd != null)
modelCmd.Cancel = true;
mainFrm.ReportProgress("", 0, "", 0, DateTime.Now.AddMilliseconds(1));
if (!mainFrm.SmallPanel.IsDisposed && !mainFrm.SmallPanel.Disposing)
mainFrm.SmallPanel.Stop();
mainFrm.HideCommandToolbox();
Model.Model.Instance.Undo.Commit();
modelCmd = null;
if (services != null)
{
services.Dispose();
services = null;
}
TrackingController.TrackingService = null;
TrackingController.ResetStatus(Canguro.View.GraphicViewManager.Instance.ActiveView);
TrackingController.SnapController.IsActive = false;
TrackingController.SnapController.PrimaryPoint = Snap.PointMagnet.ZeroMagnet;
// Reset selection
SelectionCommand.Start(null);
viewCmd = SelectionCommand;
mainFrm.ScenePanel.Cursor = viewCmd.Cursor;
if (EndModelCommand != null)
EndModelCommand(this, EventArgs.Empty);
}
/// <summary>
/// Este método es llamado como resultado de una acción del usuario, no de algún otro comando.
/// Por esto sus mensajes de error se mandan al usuario como avisos y se resuelven aquí mismo
/// en lugar de aventar excepciones.
/// </summary>
/// <param name="command">El nombre del comando a ejecutar</param>
/// <returns>True if the command executed successfully. False otherwise.</returns>
public bool Execute(string command)
{
// Clean command
command = command.Trim().ToLowerInvariant();
// Check cancel first
if (command.Equals("cancel"))
{
// Cancel View Command, Model Command and Selection if applicable
// (in that order, only one action per cancel)
if ((viewCmd != SelectionCommand || Canguro.View.GraphicViewManager.Instance.ActiveView.ModelRenderer.RenderOptions.ShowAnimated) && EndViewCommand != null)
EndViewCommand(this, new EndViewCommandArgs(viewCmd));
else
{
if (modelCmd != null)
{
if (!modelCmd.AllowCancel())
return false;
endModelCommand();
}
else
{
// If there was no ModelCommand, clear and reset selection
Canguro.Model.Model.Instance.UnSelectAll();
SelectionCommand.Reset();
}
}
IdleReset();
viewCmd = SelectionCommand;
if (StartViewCommand != null)
StartViewCommand(this, EventArgs.Empty);
mainFrm.ScenePanel.Cursor = SelectionCommand.DefaultCursor;
return true;
}
// Check if command exists
if (!commands.ContainsKey(command))
{
System.Windows.Forms.MessageBox.Show(Culture.Get("CommandNotFound") + ": '" + command + "'", Culture.Get("ActionNotPossibleTitle"), System.Windows.Forms.MessageBoxButtons.OK, System.Windows.Forms.MessageBoxIcon.Error);
return false;
}
// Execute Command
// Prioritize View Commands
Command cmd = commands[command];
if (cmd is ViewCommand)
{
// If a series of viewCommands has ended (entered SelectionCommand)
// then send the EndViewCommand signal
// If Selection was doing anything and the viewCmd changes to zoom, pan, rotate, etc.
// (exits selection mode), reset SelectionCommand
if ((cmd == SelectionCommand) && (viewCmd != SelectionCommand) && (EndViewCommand != null))
EndViewCommand(this, new EndViewCommandArgs(viewCmd));
else if ((cmd != SelectionCommand) && (viewCmd == SelectionCommand))
// Tal vez en lugar de un Reset sea mejor un Cancel, para no perder el tracking
SelectionCommand.Reset();
// Instantiate and run new ViewCommand
ViewCommand lastViewCmd = viewCmd;
viewCmd = (ViewCommand)cmd;
if (StartViewCommand != null)
StartViewCommand(this, EventArgs.Empty);
if (viewCmd.SavePrevious)
{
GraphicViewManager.Instance.SavePreviousActiveView();
//System.Console.WriteLine("SavePrevious");
}
if (viewCmd.IsInteractive)
mainFrm.ScenePanel.Cursor = viewCmd.Cursor;
else
{
viewCmd.Run(GraphicViewManager.Instance.ActiveView);
GraphicViewManager.Instance.updateView(false);
if (EndViewCommand != null)
EndViewCommand(this, new EndViewCommandArgs(viewCmd));
if (lastViewCmd == SelectionCommand)
viewCmd = SelectionCommand;
else
{
//if (lastViewCmd.SavePrevious && viewCmd != Commands.View.ZoomPrevious.Instance)
//{
// GraphicViewManager.Instance.SavePreviousActiveView();
// System.Console.WriteLine("SavePrevious");
//}
//viewCmd = lastViewCmd;
Execute("select");
}
if (StartViewCommand != null)
StartViewCommand(this, EventArgs.Empty);
}
}
else if (cmd is ModelCommand)
{
if (modelCmd == null)
{
// Por el momento funcionan en el mismo hilo, por lo que al terminar la
// llamada a Run se puede asignar modelCmd = null y services = null
modelCmd = (ModelCommand)cmd;
modelCmd.Cancel = false;
try
{
if (StartModelCommand != null)
StartModelCommand(this, EventArgs.Empty);
modelCmd.Run(services = new CommandServices(this));
}
catch (CancelCommandException) { Model.Model.Instance.Undo.Rollback(); }
catch (Exception ex) { System.Diagnostics.Debug.WriteLine("Controller.Execute: {0}", ex.Message); }
finally
{
endModelCommand();
}
}
else
{
System.Windows.Forms.MessageBox.Show(Culture.Get("ModelCmdAlreadyExecuting"), Culture.Get("ActionNotPossibleTitle"), System.Windows.Forms.MessageBoxButtons.OK, System.Windows.Forms.MessageBoxIcon.Error);
return false;
}
}
return true;
}