/// <summary>
/// Indicates that no amount of undoing/redoing will get the undo queue into a saved state
/// (This could occur, for example, if a file were modified outside the application.
/// </summary>
public void NeverSaved()
{
bool modified = Modified;
m_undoSaved = UndoAction.NeverSaved;
if (!modified)
{
ModifiedChanged.Execute();
}
}
/// <summary>
/// The associated file has been saved and so any existing items are effectively modifications from the saved state of the file if you undo them
/// </summary>
public void Saved()
{
bool modified = Modified;
m_undoSaved = m_undoActions.Count != 0 ? m_undoActions.Peek() : null;
if (modified)
{
ModifiedChanged.Execute();
}
}
public void Queue(UndoAction action)
{
bool modified = Modified;
m_redoActions.Clear();
m_undoActions.Push(action);
Changed.Execute();
Logger.Log(m_name + "changes.txt", "Action: " + action.LogDescription);
if (!modified)
{
ModifiedChanged.Execute();
}
}
public void RequestNewDocument(EditorDocument template, String text)
{
if (template.FullName != null && template.FullName.Length > 0)
{
template.HasLocation = true;
template.FileName = System.IO.Path.GetFileName(template.FullName);
}
else
{
template.HasLocation = false;
if (template.FileName == null || template.FileName.Length <= 0)
{
template.FileName = "Untitled" + untitledNumer;
untitledNumer++;
}
}
template.EditorControl = new TextBox()
{
AcceptsReturn = true,
AcceptsTab = true,
FontFamily = new FontFamily("Courier New"),
FontSize = 12.0,
HorizontalScrollBarVisibility = ScrollBarVisibility.Auto,
VerticalScrollBarVisibility = ScrollBarVisibility.Auto,
Text = text,
SnapsToDevicePixels = true,
//BorderThickness = new Thickness(0,2,0,0),
Margin = new Thickness(0),
Padding = new Thickness(0)
};
template.EditorControl.TextChanged +=
delegate(object source, TextChangedEventArgs e)
{
if (template.IsModified == false)
{
template.IsModified = true;
ModifiedChanged.Invoke(this, new EditorEventArgs()
{
Document = template
});
}
};
documents.Add(template);
InsertedEditor.Invoke(this, new EditorEventArgs()
{
Document = template
});
}
public void Redo()
{
if (m_redoActions.Any())
{
bool modified = Modified;
var a = m_redoActions.Pop();
a.Redo();
m_undoActions.Push(a);
if (modified != Modified)
{
ModifiedChanged.Execute();
}
Changed.Execute();
Logger.Log(m_name + "changes.txt", "Redo: " + a.LogDescription);
}
}
/// <summary>
/// Вызвать событие ModifiedChanged
/// </summary>
private void OnModifiedChanged()
{
ModifiedChanged?.Invoke(this, EventArgs.Empty);
}
private bool saveHelper(EditorDocument document, bool isSaveAs)
{
if (document.IsModified || isSaveAs)
{
// Choose location if first save. Also sets IsModified to true.
bool cancelled;
string newLocation;
if (isSaveAs || !document.HasLocation)
{
#region Prompt for location
ActivatedEditor.Invoke(this, new EditorEventArgs()
{
Document = document
});
var dlg = new SaveFileDialog()
{
DefaultExt = ".py",
Filter = fileFilter
};
if (document.HasLocation && document.FullName != null)
{
dlg.FileName = document.FullName;
}
if (dlg.ShowDialog(this.owner) == true)
{
newLocation = dlg.FileName;
cancelled = false;
}
else
{
newLocation = null;
cancelled = true;
}
#endregion
}
else
{
cancelled = false;
newLocation = null;
}
// If selecting a path was not cancelled, and document is modified
// (IsModified was set to true if the file did not have a path).
if (cancelled == true)
{
return(false);
}
else
{
try
{
#region Write file and store new location
using (var stream =
(newLocation != null ?
File.CreateText(newLocation) :
File.CreateText(document.FullName)))
{
stream.Write(document.EditorControl.Text);
document.IsModified = false;
// If there is a new location, either due to save as
// or first save, update properties and invoke the
// name change event.
if (newLocation != null)
{
document.FullName = newLocation;
document.FileName = System.IO.Path.GetFileName(newLocation);
document.HasLocation = true;
NameChanged.Invoke(this, new EditorEventArgs()
{
Document = document
});
}
ModifiedChanged.Invoke(this, new EditorEventArgs()
{
Document = document
});
}
#endregion
return(true);
}
catch (Exception e)
{
if (e.Message != null && e.Message.Length > 0)
{
MessageBox.Show(this.owner, e.Message, "Error saving file",
MessageBoxButton.OK, MessageBoxImage.Error, MessageBoxResult.OK);
}
throw e;
}
}
}
else
{
return(false);
}
}
/// <summary>
/// Raises the ModifiedChanged event.
/// </summary>
/// <param name="e">An EventArgs that contains the event data.</param>
protected virtual void OnModifiedChanged(EventArgs e)
{
ModifiedChanged?.Invoke(this, e);
}
/// <summary>
/// Notifies when the modified state of the document changes
/// </summary>
protected virtual void OnModifiedChanged()
{
ModifiedChanged?.Invoke();
}
protected virtual void OnModifiedChanged()
{
ModifiedChanged?.Invoke(this, EventArgs.Empty);
}
