/*! \brief Raising an event invokes the event handler through a delegate.
*
* The \b OnMsgPreQuit method also allows derived classes to handle the
* event without attaching a delegate. This is the preferred technique for
* handling the event in a derived class.
* \note When overriding \b OnMsgPreQuit in a derived class, be sure to
* call the base class's \b OnMsgPreQuit method so that registered delegates
* receive the event. */
protected virtual void OnMsgPreQuit(Wimp.MessageEventArgs e)
{
if (MsgPreQuit != null)
{
MsgPreQuit(this, e);
}
}
/*! \brief Raising an event invokes the event handler through a delegate.
*
* The \b OnMsgModeChange method also allows derived classes to handle the
* event without attaching a delegate. This is the preferred technique for
* handling the event in a derived class.
* \note When overriding \b OnMsgModeChange in a derived class, be sure to
* call the base class's \b OnMsgModeChange method so that registered delegates
* receive the event. */
protected virtual void OnMsgModeChange(Wimp.MessageEventArgs e)
{
if (MsgModeChange != null)
{
MsgModeChange(this, e);
}
}
protected virtual void OnMessage(Wimp.MessageEventArgs e)
{
switch (e.MessageType)
{
case Wimp.MessageAction.DataLoad:
OnMsgDataLoad((Wimp.DataLoadMessageEventArgs)e);
break;
}
}
/*! \brief Dispatch Wimp messages to both types of task. */
protected virtual void OnMessage(Wimp.MessageEventArgs e)
{
switch (e.MessageType)
{
case Wimp.MessageAction.Quit:
OnMsgQuit(e);
break;
case Wimp.MessageAction.PreQuit:
OnMsgPreQuit(e);
break;
case Wimp.MessageAction.DataLoad:
OnMsgDataLoad((Wimp.DataLoadMessageEventArgs)e);
break;
case Wimp.MessageAction.ModeChange:
OnMsgModeChange(e);
break;
}
}
public void ModeChangeHandler(object sender, Wimp.MessageEventArgs e)
{
if (TransTable != IntPtr.Zero)
{
SpriteTask.Heap.Free(TransTable);
TransTable = IntPtr.Zero;
}
int buffer_size = GetTransTableSize(ColourTrans.CurrentMode,
ColourTrans.CurrentPalette,
false);
if (buffer_size != 0)
{
TransTable = SpriteTask.Heap.Alloc(buffer_size);
GetTransTable(TransTable,
ColourTrans.CurrentMode,
ColourTrans.CurrentPalette,
false);
}
}
