source: trunk/nv/core/io_event.hh @ 319

// Copyright (C) 2012-2014 ChaosForge Ltd
// http://chaosforge.org/
//
// This file is part of NV Libraries.
// For conditions of distribution and use, see copyright notice in nv.hh

/**
 * @file io_event.hh
 * @author Kornel Kisielewicz
 * @brief 
 */

#ifndef NV_CORE_IO_EVENT_HH
#define NV_CORE_IO_EVENT_HH

#include <nv/core/common.hh>

namespace nv
{

        // Generate the key_code enum
        enum key_code
        {
#       define NV_KEY( id, val ) id = val,
#               include <nv/detail/key_list.inc>
#       undef NV_KEY
        };
        
        // Generate the mouse_code enum
        enum mouse_code
        {
#       define NV_MOUSE( id, val ) id = val,
#               include <nv/detail/mouse_list.inc>
#       undef NV_MOUSE
        };

        // Generate the io_event_code enum
        enum io_event_code
        {
#       define NV_IO_EVENT( id ) id,
#               include <nv/detail/io_event_list.inc>
#       undef NV_IO_EVENT
        };

        struct key_event
        {
                /// Input event ASCII code
                char8 ascii;

                /// Input event local code
                key_code code;

                /// True if shift key is present
                bool shift;

                /// True if control key is present
                bool control;

                /// True if alt key is present
                bool alt;

                /// True if pressed
                bool pressed;
        };

        struct mouse_button_event
        {
                /// X position where mouse was clicked.
                uint16 x;
                /// Y position where mouse was clicked.
                uint16 y;
                /// Button that was clicked.
                uint32 button;
                /// True if pressed
                bool pressed;
                /// Mouse button code
                mouse_code code;
        };

        struct mouse_wheel_event
        {
                /// amount scrolled horizontally positive to the right
                sint32 x;
                /// amount scrolled vertically 
                sint32 y;
        };

        struct mouse_move_event
        {
                /// X Position the mouse moved to.
                uint16 x;
                /// Y Position the mouse moved to.
                uint16 y;
                /// Distance in x direction mouse was moved.
                sint16 rx;
                /// Distance in y direction mouse was moved.
                sint16 ry;
                /// True if pressed
                bool pressed;
                /// Mouse button code
                mouse_code code;
        };

        struct joy_button_event
        {
                /// Joystick ID
                sint32 id;
                /// Button that is affected
                uint8 button;
                /// True if pressed
                bool pressed;
        };

        struct joy_axis_event
        {
                /// Joystick ID
                sint32 id;
                /// Axis ID
                uint8 axis;
                /// Value
                sint16 value;
        };

        struct joy_hat_event
        {
                /// Joystick ID
                sint32 id;
                /// Hat ID
                uint8 hat;
                /// Value
                sint16 value;
        };

        struct joy_ball_event
        {
                /// Joystick ID
                sint32 id;
                /// Ball ID
                uint8 ball;
                /// Relative X
                sint16 rx;
                /// Relative Y
                sint16 ry;
        };

        struct resize_event
        {
                /// New x size of the object.
                sint32 x;
                /// New y size of the object.
                sint32 y;
        };

        struct active_event
        {
                /// Whether focus was gained or lost.
                bool gain;
        };

        struct system_event
        {
                uint8  sys_type;
                uint32 param1;
                uint32 param2;
        };

        struct io_event
        {
                io_event_code type;
                union
                {
                        key_event          key;
                        mouse_button_event mbutton;
                        mouse_move_event   mmove;
                        mouse_wheel_event  mwheel;
                        joy_button_event   jbutton;
                        joy_axis_event     jaxis;
                        joy_hat_event      jhat;
                        joy_ball_event     jball;
                        resize_event       resize;
                        active_event       active;
                        system_event       system;
                };
        };

        /**
         * Gets the name of the key given the code.
         *
         * @param key The code value of the key.
         * @returns The name of the key.
         */
        const char* get_key_name( key_code key );

        /**
         * Gets the name of the mouse button given the code.
         *
         * @param button The code value of the mouse button.
         * @returns The name of the button.
         */
        const char* get_mouse_name( mouse_code button );

        /**
         * Gets the name of the IO event given the code.
         *
         * @param event The code value of the IO event.
         * @returns The name of the event.
         */
        const char* get_io_event_name( io_event_code event );

        /**
         * Registers all events to the specified database.
         *
         * @param db The database to store all event data in.
         */
        //void register_io_types( type_database* db );
}

#endif // NV_CORE_IO_EVENT_HH