#pragma region CPL License
/*
Nuclex Native Framework
Copyright (C) 2002-2013 Nuclex Development Labs

This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.

You should have received a copy of the IBM Common Public
License along with this library
*/
#pragma endregion // CPL License

// If the library is compiled as a DLL, this ensures symbols are exported
#define NUCLEX_INPUT_SOURCE 1

#include "BufferedKeyboard.h"

namespace Nuclex { namespace Input { namespace Devices {

  // ------------------------------------------------------------------------------------------- //

  void BufferedKeyboard::BufferKeyPress(Key::Enum pressedKey) {
    Event keyPressEvent;
    keyPressEvent.Type = KeyPressNotification;
    keyPressEvent.PressedOrReleasedKey = pressedKey;

    this->bufferedEvents.Add(keyPressEvent);
  }

  // ------------------------------------------------------------------------------------------- //

  void BufferedKeyboard::BufferKeyRelease(Key::Enum releasedKey) {
    Event keyReleaseEvent;
    keyReleaseEvent.Type = KeyReleaseNotification;
    keyReleaseEvent.PressedOrReleasedKey = releasedKey;

    this->bufferedEvents.Add(keyReleaseEvent);
  }

  // ------------------------------------------------------------------------------------------- //

  void BufferedKeyboard::BufferCharacterEntry(wchar_t enteredCharacter) {
    Event characterEntryEvent;
    characterEntryEvent.Type = CharacterEntryNotification;
    characterEntryEvent.EnteredCharacter = enteredCharacter;

    this->bufferedEvents.Add(characterEntryEvent);
  }

  // ------------------------------------------------------------------------------------------- //

  void BufferedKeyboard::Update() {
    Event nextRecordedEvent;
    while(this->bufferedEvents.TryPop(nextRecordedEvent)) {
      if(nextRecordedEvent.Type == SnapshotNotification) {
        break;
      }

      playbackEvent(nextRecordedEvent);
    }
  }

  // ------------------------------------------------------------------------------------------- //

  void BufferedKeyboard::TakeSnapshot() {
    Event snapshotEvent;
    snapshotEvent.Type = SnapshotNotification;

    this->bufferedEvents.Add(snapshotEvent);
  }

  // ------------------------------------------------------------------------------------------- //

  void BufferedKeyboard::ClearSnapshots() {
    Event nextRecordedEvent;
    while(this->bufferedEvents.TryPop(nextRecordedEvent)) {
      playbackEvent(nextRecordedEvent);
    }
  }

  // ------------------------------------------------------------------------------------------- //

  void BufferedKeyboard::playbackEvent(const BufferedKeyboard::Event &recordedEvent) {
    switch(recordedEvent.Type) {
      case KeyPressNotification: {
        this->currentState.Keys.set(recordedEvent.PressedOrReleasedKey);
        KeyPressed(recordedEvent.PressedOrReleasedKey);
        break;
      }
      case KeyReleaseNotification: {
        this->currentState.Keys.reset(recordedEvent.PressedOrReleasedKey);
        KeyReleased(recordedEvent.PressedOrReleasedKey);
        break;
      }
      case CharacterEntryNotification: {
        CharacterEntered(recordedEvent.EnteredCharacter);
        break;
      }
    }
  }

  // ------------------------------------------------------------------------------------------- //

}}} // namespace Nuclex::Input::Devices