// Protected methods
protected void OnButtonPressEvent(object o, ButtonPressEventArgs args)
{
int x, y;
Gdk.ModifierType state;
args.Event.Window.GetPointer(out x, out y, out state);
if (activeAction == null && IsInBounds(x, y))
{
foreach (TileGridAction act in actionList)
{
if (act.MatchesState(state))
{
HandleTileGridAction(act, GetGridIndex(x, y));
if (act.mod.HasFlag(MouseModifier.Drag))
{
activeAction = act;
}
}
}
if (Selectable)
{
GrabFocus();
}
}
}
void HandleTileGridAction(TileGridAction act, int index)
{
if (act.action == GridAction.Select)
{
SelectedIndex = index;
}
else if (act.action == GridAction.Callback)
{
act.callback(this, index);
}
}
protected void OnButtonReleaseEvent(object o, ButtonReleaseEventArgs args)
{
int x, y;
Gdk.ModifierType state;
args.Event.Window.GetPointer(out x, out y, out state);
if (activeAction != null && !activeAction.ButtonMatchesState(state))
{
if (activeAction.mod.HasFlag(MouseModifier.Drag))
{
// Probably will add a "button release" callback here later
activeAction = null;
}
}
}
public void AddMouseAction(MouseButton button, MouseModifier mod, GridAction action, TileGridEventHandler callback = null)
{
TileGridAction act;
if (action == GridAction.Callback)
{
if (callback == null)
{
throw new Exception("Need to specify a callback.");
}
act = new TileGridAction(button, mod, action, callback);
}
else
{
if (callback != null)
{
throw new Exception("This action doesn't take a callback.");
}
act = new TileGridAction(button, mod, action);
}
actionList.Add(act);
}
