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engines/m4/platform/events.h

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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/>.
+ *
+ */
+
+#ifndef M4_PLATFORM_EVENTS_H
+#define M4_PLATFORM_EVENTS_H
+
+#include "common/queue.h"
+#include "common/events.h"
+#include "m4/m4_types.h"
+
+namespace M4 {
+
+enum MouseEvent {
+	_ME_no_event,		// 0
+	_ME_move,			// 1
+	_ME_L_click,		// 2
+	_ME_L_hold,			// 3
+	_ME_L_drag,			// 4
+	_ME_L_release,		// 5
+	_ME_R_click,		// 6
+	_ME_R_hold,			// 7
+	_ME_R_drag,			// 8
+	_ME_R_release,		// 9
+	_ME_both_click,		// 10
+	_ME_both_hold,		// 11
+	_ME_both_drag,		// 12
+	_ME_both_release,	// 13
+	_ME_doubleclick,	// 14
+	_ME_doubleclick_hold, // 15
+	_ME_doubleclick_drag, // 16
+	_ME_doubleclick_release
+};
+
+enum mausState {
+	_MS_no_event,		// 0
+	_MS_L_clickDown,	// 1
+	_MS_R_clickDown,	// 2
+	_MS_both_clickDown,	// 3
+	_MS_doubleclick_Down // 4
+};
+
+struct MouseInfo {
+	uint16 Event = 0;
+	uint16 ButtonState = 0;
+	uint16 CursorColumn = 0;	// x
+	uint16 CursorRow = 0;		// y
+	uint16 HorizontalMickeyCount = 0;
+	uint16 VerticalMickeyCount = 0;
+};
+
+struct Events : public MouseInfo {
+private:
+	Common::Queue<Common::KeyState> _pendingKeys;
+	uint16 &_mouseX = CursorColumn;
+	uint16 &_mouseY = CursorRow;
+	uint16 _oldX = 0xffff;
+	uint16 _oldY = 0xffff;
+	mausState _mouse_state = _MS_no_event;
+	uint32 _mouseStateEvent = 0;
+	uint32 _dclickTime = 0;
+
+	/**
+	 * Handles reading in pending events from the ScummVM event queue
+	 */
+	void pollEvents();
+
+	/**
+	 * Handles mouse events
+	 */
+	void handleMouseEvent(const Common::Event &ev);
+
+	/**
+	 * Handles keyboard events
+	 */
+	void handleKeyboardEvent(const Common::Event &ev);
+
+	/**
+	 * Tells if key event refers to one of the mod-keys
+	 */
+	inline bool is_mod_key(const Common::KeyState &ks) {
+		return ks.keycode == Common::KEYCODE_LCTRL || ks.keycode == Common::KEYCODE_RCTRL ||
+			ks.keycode == Common::KEYCODE_LALT || ks.keycode == Common::KEYCODE_RALT ||
+			ks.keycode == Common::KEYCODE_LSHIFT || ks.keycode == Common::KEYCODE_RSHIFT ||
+			ks.keycode == Common::KEYCODE_MODE;
+	}
+
+public:
+	Events();
+	~Events();
+
+	/**
+	 * Updates pending events and timers
+	 */
+	void process();
+
+	/**
+	 * Get the next pending mouse event
+	 */
+	MouseEvent mouse_get_event();
+
+	/**
+	 * Get the next pending keyboard event
+	 */
+	bool util_kbd_check(int32 *parm1);
+
+	void clearMouseStateEvent() {
+		_mouseStateEvent = 0;
+	}
+
+	/**
+	 * Delays by a given number of milliseconds
+	 */
+	void delay(uint amount);
+};
+
+extern Events *g_events;
+
+MouseEvent mouse_get_event();
+bool util_kbd_check(int32 *parm1);
+
+} // namespace M4
+
+#endif