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engines/hpl1/engine/input/Keyboard.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/*
+ * Copyright (C) 2006-2010 - Frictional Games
+ *
+ * This file is part of HPL1 Engine.
+ */
+
+#include "common/events.h"
+#include "hpl1/debug.h"
+#include "hpl1/engine/input/Keyboard.h"
+#include "hpl1/engine/input/LowLevelInput.h"
+
+namespace hpl {
+
+//-----------------------------------------------------------------------
+
+Keyboard::Keyboard(LowLevelInput *lowLevelInput) : iInputDevice("Keyboard", eInputDeviceType_Keyboard) {
+	_lowLevelSystem = lowLevelInput;
+
+	_downKeys.set_size(Common::KEYCODE_LAST);
+	_downKeys.clear();
+}
+
+//-----------------------------------------------------------------------
+
+void Keyboard::processEvent(const Common::Event &ev) {
+	if (ev.type != Common::EVENT_KEYDOWN && ev.type != Common::EVENT_KEYUP)
+		return;
+
+	if (ev.type == Common::EVENT_KEYDOWN) {
+		_downKeys.set(ev.kbd.keycode);
+		_modifiers = ev.kbd.flags;
+		_pressedKeys.push(ev.kbd);
+	} else {
+		_downKeys.unset(ev.kbd.keycode);
+	}
+}
+
+void Keyboard::Update() {
+	_pressedKeys.clear();
+	for (const Common::Event &ev : _lowLevelSystem->_events)
+		processEvent(ev);
+}
+
+//-----------------------------------------------------------------------
+
+bool Keyboard::KeyIsDown(Common::KeyCode key) {
+	return _downKeys.get(key);
+}
+
+//-----------------------------------------------------------------------
+
+Common::KeyState Keyboard::GetKey() {
+	return _pressedKeys.pop();
+}
+
+//-----------------------------------------------------------------------
+
+bool Keyboard::KeyIsPressed() {
+	return _pressedKeys.empty() == false;
+}
+
+//-----------------------------------------------------------------------
+
+int Keyboard::GetModifier() {
+	return _modifiers;
+}
+
+//-----------------------------------------------------------------------
+
+tString Keyboard::KeyToString(Common::KeyCode eKey) {
+	HPL1_UNIMPLEMENTED(Keyboard::KeyToString);
+}
+
+//-----------------------------------------------------------------------
+
+Common::KeyCode Keyboard::StringToKey(tString) {
+	HPL1_UNIMPLEMENTED(Keyboard::StringToKey);
+}
+
+//-----------------------------------------------------------------------
+
+} // namespace hpl