/// <summary>
/// Runs an action and stores it in the undo stack.
/// </summary>
/// <typeparam name="T"></typeparam>
public void RunUndoableAction <T>() where T : UndoableAction, new()
{
T action = new T();
action.manager = this;
if (action.Init())
{
clearRedoStack();
_undoStack.Push(action);
action.Do();
}
}
// Moves one directory up and update file browser
// When there is no parent, show the drives of the computer
public void DirectoryUp()
{
_backwardStack.Push(_currentPath);
if (!IsTopLevelReached())
{
_currentPath = Directory.GetParent(_currentPath).FullName;
UpdateFileBrowser();
}
else
{
UpdateFileBrowser(true);
}
}
// Load last saved level from redo tack and rebuild level
void Redo()
{
// See if there is anything on the redo stack
if (redoStack.Count > 0)
{
// If so, push it to the redo stack
undoStack.Push(level);
}
// Get the last level entry
int[,,] redoLevel = redoStack.Pop();
if (redoLevel != null)
{
// Set level and rebuild the level
level = redoLevel;
RebuildLevel();
}
}
// Goes forward to the previously selected directory (inverse of DirectoryBackward)
public void DirectoryForward()
{
// See if there is anything on the redo stack
if (_forwardStack.Count > 0)
{
// If so, push it to the backward stack
_backwardStack.Push(_currentPath);
}
// Get the last level entry
string forwardPath = _forwardStack.Pop();
if (forwardPath != null)
{
// Set path and update the file browser
_currentPath = forwardPath;
UpdateFileBrowser();
}
}
public static void Main()
{
SimpleStack <string> a = new SimpleStack <string>();
a.Push("Monday");
a.Push("Tuesday");
a.Push("Wednesday");
a.Push("Thursday");
a.Push("Friday");
FiniteStack <string> b = new FiniteStack <string>(12);
b.Push("June");
b.Push("May");
b.Push("April");
b.Push("March");
SimpleStack <Interval> c = new SimpleStack <Interval>();
c.Push(new Interval(5, 31));
c.Push(new Interval(4, 52));
c.Push(new Interval(7, 23));
c.Push(new Interval(3, 44));
c.Push(new Interval(6, 15));
SimpleStack <object> d = new SimpleStack <object>();
d.Push("Sunday");
d.Push(new Interval(2, 30));
d.Push(12.3);
a.Copy(b);
c.Copy(d);
PrintStack(a);
PrintStack(b);
PrintStack(c);
PrintStack(d);
}
public static void Main()
{
SimpleStack <string> a = new SimpleStack <string>();
a.Push("Monday");
a.Push("Tuesday");
a.Push("Wednesday");
a.Push("Thursday");
a.Push("Friday");
FiniteStack <string> b = new FiniteStack <string>(10);
b.Push("June");
b.Push("May");
b.Push("April");
b.Push("March");
SimpleStack <Interval> c = new SimpleStack <Interval>();
c.Push(new Interval(5, 41));
c.Push(new Interval(7, 32));
c.Push(new Interval(6, 53));
c.Push(new Interval(3, 24));
c.Push(new Interval(4, 15));
SimpleStack <object> d = new SimpleStack <object>();
d.Push("Saturday");
d.Push(45.6);
c.Copy(d); //contravariance(Interval -> object) for IStackWriter
PrintStack(a); //covariance(object -> string) for IStackReader
PrintStack(b);
PrintStack(c);
PrintStack(d);
}
// ----- PRIVATE METHODS -----
// Load last saved level from undo stack and rebuild level
private void Undo()
{
// See if there is anything on the undo stack
if (_undoStack.Count > 0)
{
// If so, push it to the redo stack
_redoStack.Push(_levelEditor.GetLevel());
}
// Get the last level entry
int[,,] undoLevel = _undoStack.Pop();
if (undoLevel != null)
{
// Set the level to the previous state
_levelEditor.SetLevel(undoLevel);
}
}
public void AddHistoryEntry(int channel, int count = 1)
{
SongData.ColumnEntry[] entries = new SongData.ColumnEntry[count];
for (int i = 0; i < count; i++)
{
if (data.lookupTable[data.currentPattern][channel + i] < 0)
{
continue;
}
entries[i] = data.songData[data.lookupTable[data.currentPattern][channel + i]];
}
HistoryEvent evt = new HistoryEvent(data.currentPattern, entries, view.position);
m_History.Push(evt);
}
// Returns to the previously selected directory (inverse of DirectoryForward)
public void DirectoryBackward()
{
// See if there is anything on the backward stack
if (_backwardStack.Count > 0)
{
// If so, push it to the forward stack
_forwardStack.Push(currentPath);
}
// Get the last path entry
string backPath = _backwardStack.Pop();
if (backPath != null)
{
// Set path and update the file browser
currentPath = backPath;
UpdateFileBrowser();
}
}
// Push a level to the undo stack thereby saving it's state
public void PushLevel(int[,,] level)
{
_undoStack.Push(level.Clone() as int[, , ]);
}
