Initial CE virtual keys classes commit

svn-id: r12614

1 files changed, 69 insertions, 0 deletions

diff --git a/backends/wince/CEkeys/KeysBuffer.cpp b/backends/wince/CEkeys/KeysBuffer.cpp
new file mode 100644
index 0000000000..2a15d36356
--- /dev/null
+++ b/backends/wince/CEkeys/KeysBuffer.cpp
@@ -0,0 +1,69 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2001-2004 The ScummVM project
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program 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
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * $Header$
+ *
+ */
+
+#include "stdafx.h"
+#include "KeysBuffer.h"
+
+namespace CEKEYS {
+
+	KeysBuffer::KeysBuffer(int capacity):
+	_capacity(capacity), _buffer(new Key[capacity]), _currentAdd(0), _currentGet(0) {
+	}
+
+	bool KeysBuffer::add(const Key *key) {
+		if (_currentAdd == _capacity - 1)
+			return false;
+
+		_currentGet = _currentAdd;
+		_buffer[_currentAdd++] = *key;
+
+		return true;
+	}
+
+	KeysBuffer* KeysBuffer::Instance(int capacity) {		
+		if (!_instance)
+			_instance = new KeysBuffer(capacity);
+		
+		return _instance;		
+	}
+
+
+	Key* KeysBuffer::get() {
+		Key *result;
+
+		if (_currentAdd <= _currentGet)
+			return NULL;
+		result = &_buffer[_currentGet++];
+		if (_currentGet == _currentAdd) {
+			_currentGet = 0;
+			_currentAdd = 0;
+		}
+		return result;
+	}
+
+	KeysBuffer::~KeysBuffer() {
+		delete [] _buffer;
+	}
+
+	KeysBuffer *KeysBuffer::_instance = NULL;
+}
+
+