/// Here we handle the keyboard to check for the arrow keys. KeyboardData contains basically the same
/// information as TCODKey.
///
/// All of the On* methods of the base classes are message handlers - that is, they are called when the
/// framework sends them a message. The base classes typically perform all the grunge work of handling
/// the messages (including triggering any events), so to add custom message handling we just override
/// the relavent On* method. An alternative to overriding is to hook into the events, but it is usually
/// preferrable to using an override instead of events (for efficiency and code cleanliness reasons, among
/// others).
protected override void OnKeyPressed(KeyboardData keyData)
{
base.OnKeyPressed(keyData);
switch (keyData.KeyCode)
{
case libtcod.TCODKeyCode.Left:
if (currentPos.X > 0)
currentPos = currentPos.Shift(-1, 0);
break;
case libtcod.TCODKeyCode.Right:
if (currentPos.X < Application.ScreenSize.Width-1)
currentPos = currentPos.Shift(1, 0);
break;
case libtcod.TCODKeyCode.Down:
if (currentPos.Y < Application.ScreenSize.Height-1)
currentPos = currentPos.Shift(0, 1);
break;
case libtcod.TCODKeyCode.Up:
if (currentPos.Y > 0)
currentPos = currentPos.Shift(0, -1);
break;
}
}
// /////////////////////////////////////////////////////////////////////////////////
/// Base method propagates messages to children controls and managers. Override to
/// add custom handling.
protected internal override void OnKeyReleased(KeyboardData keyData)
{
base.OnKeyReleased(keyData);
foreach (Manager m in managerList)
{
m.OnKeyReleased(keyData);
}
if (CurrentKeyboardFocus != null)
{
CurrentKeyboardFocus.OnKeyReleased(keyData);
}
}
/// <summary>
/// It should be noted that Managers always receive input messages, unlike controls. A control
/// needs to have the current keyboard focus before it can receive keyboard messages, for example. All
/// Manager objects added to the current Window will receive all mouse and keyboard messages.
/// </summary>
/// <param name="keyData"></param>
protected override void OnKeyPressed(KeyboardData keyData)
{
base.OnKeyPressed(keyData);
switch (keyData.KeyCode)
{
case libtcod.TCODKeyCode.Up:
mapView.MovePlayer(0, -1);
break;
case libtcod.TCODKeyCode.Down:
mapView.MovePlayer(0, 1);
break;
case libtcod.TCODKeyCode.Right:
mapView.MovePlayer(1, 0);
break;
case libtcod.TCODKeyCode.Left:
mapView.MovePlayer(-1, 0);
break;
}
}
// /////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Base method handles keyboard input for the entry. Override to add custom
/// behavior.
/// </summary>
internal protected override void OnKeyPressed(KeyboardData keyData)
{
base.OnKeyPressed(keyData);
if (keyData.Character != 0 &&
ValidateCharacter(keyData.Character))
{
if (waitingToOverwrite)
{
TextInput = keyData.Character.ToString();
CursorPos = 1;
waitingToOverwrite = false;
}
else if (TextInput.Length < MaximumCharacters)
{
TextInput += keyData.Character;
CursorPos++;
}
}
else if (keyData.KeyCode == TCODKeyCode.Backspace &&
TextInput.Length > 0)
{
TextInput = TextInput.Substring(0, TextInput.Length - 1);
CursorPos--;
}
else if (keyData.KeyCode == TCODKeyCode.Enter)
{
waitingToCommitText = true;
ParentWindow.ReleaseKeyboard(this);
}
else if (keyData.KeyCode == TCODKeyCode.Escape)
{
TextInput = CurrentText;
waitingToCommitText = true;
ParentWindow.ReleaseKeyboard(this);
}
}
// /////////////////////////////////////////////////////////////////////////////////
/// Base method propagates messages to children controls and managers. Override to
/// add custom handling.
protected internal override void OnKeyReleased(KeyboardData keyData)
{
base.OnKeyReleased(keyData);
foreach (Manager m in managerList)
{
m.OnKeyReleased(keyData);
}
if (CurrentKeyboardFocus != null)
{
CurrentKeyboardFocus.OnKeyReleased(keyData);
}
}
// /////////////////////////////////////////////////////////////////////////////////
// /////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Called when the user has released a previously pressed key. Override to add
/// key release handling code.
/// </summary>
/// <param name="keyData"></param>
protected internal virtual void OnKeyReleased(KeyboardData keyData)
{
if (KeyReleased != null)
{
KeyReleased(this, new KeyboardEventArgs(keyData));
}
}
/// <summary>
/// Construct a KeyboardEventArgs given the KeyboardData
/// </summary>
/// <param name="keyboardData"></param>
public KeyboardEventArgs(KeyboardData keyboardData)
{
if (keyboardData == null)
{
throw new ArgumentNullException("keyboardData");
}
this.keyboardData = keyboardData;
}
