/*

    SDL - Simple DirectMedia Layer

    Copyright (C) 1997-2006 Sam Lantinga

    This library is free software; you can redistribute it and/or

    modify it under the terms of the GNU Lesser General Public

    License as published by the Free Software Foundation; either

    version 2.1 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 GNU

    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public

    License along with this library; if not, write to the Free Software

    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga

    slouken@libsdl.org

*/

#include "SDL_config.h"

/* Handle the event stream, converting GGI events into SDL events */

#include <sys/types.h>

#include <sys/time.h>

#include <unistd.h>

#include <fcntl.h>

#include <termios.h>

#include <ggi/keyboard.h>

#include "SDL_ggikeys.h"

#include "SDL.h"

#include "../SDL_sysvideo.h"

#include "../../events/SDL_sysevents.h"

#include "../../events/SDL_events_c.h"

#include "SDL_ggivideo.h"

#include "SDL_ggievents_c.h"

/* The translation tables from a GGI keycode to a SDL keysym */

static SDLKey keymap[128];

static SDL_keysym *GGI_TranslateKey(ggi_event *ev, SDL_keysym *keysym);

static int posted = 0;

void GGI_PumpEvents(_THIS)

{

	struct timeval *tvp, tv = { 0, 0 };

	ggi_event ev;

	tvp = &tv;

/*	ggiFlush(VIS); */

	while (ggiEventPoll(VIS, emAll, tvp))

/*	while (ggiEventPoll(VIS, (emKeyboard | emPointer | emCommand), tvp)) */

	{

		int queueevent_mouse = 0, queueevent_kbd = 0;

		static int buttons = 0;

		static int mouse_x = 0, mouse_y = 0, mouse_z = 0;

		int x = 0, y = 0, z = 0, rx = 0, ry = 0, rz = 0;

		int pressed_mouse, pressed_kbd;

		SDL_keysym keysym;

		posted = 0;

		/* FIXME: We do not actually want all events, only

		 * mouse and keyboard events.  Having to handle all

                 * events will slow things down.  */

		ggiEventRead(VIS, &ev, emAll);

/*		ggiEventRead(VIS, &ev, (emKeyboard | emPointer | emCommand)); */

		switch (ev.any.type)

		{

			case evPtrRelative:

			x = ev.pmove.x;

			y = ev.pmove.y;

			z = ev.pmove.wheel;

			posted += SDL_PrivateMouseMotion(0, 1, x, y);

			break;

			case evPtrAbsolute:

			if (mouse_x != ev.pmove.x || mouse_y != ev.pmove.y || mouse_z != ev.pmove.wheel)

			{

				x = ev.pmove.x - mouse_x;

				y = ev.pmove.y - mouse_y;

				z = ev.pmove.wheel - mouse_z;

				mouse_x = ev.pmove.x;

				mouse_y = ev.pmove.y;

				mouse_z = ev.pmove.wheel;

				posted += SDL_PrivateMouseMotion(0, 1, x, y);

			} 

			break;

			case evPtrButtonPress:

			posted += SDL_PrivateMouseButton(SDL_PRESSED, ev.pbutton.button, 0, 0);

			break;

			case evPtrButtonRelease:

			posted += SDL_PrivateMouseButton(SDL_RELEASED, ev.pbutton.button, 0, 0);

			break;

			case evKeyPress:

			case evKeyRepeat:

			posted += SDL_PrivateKeyboard(SDL_PRESSED, GGI_TranslateKey(&ev, &keysym));

			break;

			case evKeyRelease:

			posted += SDL_PrivateKeyboard(SDL_RELEASED, GGI_TranslateKey(&ev, &keysym));

			break;

			case evCommand:

			fprintf(stderr, "Command event %x recieved\n", ev.cmd.code);

			break;

 			default:

			fprintf(stderr, "Unhandled event type %d\n", ev.any.type);

			break;

		}

	}

}

void GGI_InitOSKeymap(_THIS)

{

	int i;

	/* Initialize the GGI key translation table */

	for ( i=0; i<SDL_arraysize(keymap); ++i )

		keymap[i] = SDLK_UNKNOWN;

	keymap[SCANCODE_ESCAPE] = SDLK_ESCAPE;

	keymap[SCANCODE_1] = SDLK_1;

	keymap[SCANCODE_2] = SDLK_2;

	keymap[SCANCODE_3] = SDLK_3;

	keymap[SCANCODE_4] = SDLK_4;

	keymap[SCANCODE_5] = SDLK_5;

	keymap[SCANCODE_6] = SDLK_6;

	keymap[SCANCODE_7] = SDLK_7;

	keymap[SCANCODE_8] = SDLK_8;

	keymap[SCANCODE_9] = SDLK_9;

	keymap[SCANCODE_0] = SDLK_0;

	keymap[SCANCODE_MINUS] = SDLK_MINUS;

	keymap[SCANCODE_EQUAL] = SDLK_EQUALS;

	keymap[SCANCODE_BACKSPACE] = SDLK_BACKSPACE;

	keymap[SCANCODE_TAB] = SDLK_TAB;

	keymap[SCANCODE_Q] = SDLK_q;

	keymap[SCANCODE_W] = SDLK_w;

	keymap[SCANCODE_E] = SDLK_e;

	keymap[SCANCODE_R] = SDLK_r;

	keymap[SCANCODE_T] = SDLK_t;

	keymap[SCANCODE_Y] = SDLK_y;

	keymap[SCANCODE_U] = SDLK_u;

	keymap[SCANCODE_I] = SDLK_i;

	keymap[SCANCODE_O] = SDLK_o;

	keymap[SCANCODE_P] = SDLK_p;

	keymap[SCANCODE_BRACKET_LEFT] = SDLK_LEFTBRACKET;

	keymap[SCANCODE_BRACKET_RIGHT] = SDLK_RIGHTBRACKET;

	keymap[SCANCODE_ENTER] = SDLK_RETURN;

	keymap[SCANCODE_LEFTCONTROL] = SDLK_LCTRL;

	keymap[SCANCODE_A] = SDLK_a;

	keymap[SCANCODE_S] = SDLK_s;

	keymap[SCANCODE_D] = SDLK_d;

	keymap[SCANCODE_F] = SDLK_f;

	keymap[SCANCODE_G] = SDLK_g;

	keymap[SCANCODE_H] = SDLK_h;

	keymap[SCANCODE_J] = SDLK_j;

	keymap[SCANCODE_K] = SDLK_k;

	keymap[SCANCODE_L] = SDLK_l;

	keymap[SCANCODE_SEMICOLON] = SDLK_SEMICOLON;

	keymap[SCANCODE_APOSTROPHE] = SDLK_QUOTE;

	keymap[SCANCODE_GRAVE] = SDLK_BACKQUOTE;

	keymap[SCANCODE_LEFTSHIFT] = SDLK_LSHIFT;

	keymap[SCANCODE_BACKSLASH] = SDLK_BACKSLASH;

	keymap[SCANCODE_Z] = SDLK_z;

	keymap[SCANCODE_X] = SDLK_x;

	keymap[SCANCODE_C] = SDLK_c;

	keymap[SCANCODE_V] = SDLK_v;

	keymap[SCANCODE_B] = SDLK_b;

	keymap[SCANCODE_N] = SDLK_n;

	keymap[SCANCODE_M] = SDLK_m;

	keymap[SCANCODE_COMMA] = SDLK_COMMA;

	keymap[SCANCODE_PERIOD] = SDLK_PERIOD;

	keymap[SCANCODE_SLASH] = SDLK_SLASH;

	keymap[SCANCODE_RIGHTSHIFT] = SDLK_RSHIFT;

	keymap[SCANCODE_KEYPADMULTIPLY] = SDLK_KP_MULTIPLY;

	keymap[SCANCODE_LEFTALT] = SDLK_LALT;

	keymap[SCANCODE_SPACE] = SDLK_SPACE;

	keymap[SCANCODE_CAPSLOCK] = SDLK_CAPSLOCK;

	keymap[SCANCODE_F1] = SDLK_F1;

	keymap[SCANCODE_F2] = SDLK_F2;

	keymap[SCANCODE_F3] = SDLK_F3;

	keymap[SCANCODE_F4] = SDLK_F4;

	keymap[SCANCODE_F5] = SDLK_F5;

	keymap[SCANCODE_F6] = SDLK_F6;

	keymap[SCANCODE_F7] = SDLK_F7;

	keymap[SCANCODE_F8] = SDLK_F8;

	keymap[SCANCODE_F9] = SDLK_F9;

	keymap[SCANCODE_F10] = SDLK_F10;

	keymap[SCANCODE_NUMLOCK] = SDLK_NUMLOCK;

	keymap[SCANCODE_SCROLLLOCK] = SDLK_SCROLLOCK;

	keymap[SCANCODE_KEYPAD7] = SDLK_KP7;

	keymap[SCANCODE_CURSORUPLEFT] = SDLK_KP7;

	keymap[SCANCODE_KEYPAD8] = SDLK_KP8;

	keymap[SCANCODE_CURSORUP] = SDLK_KP8;

	keymap[SCANCODE_KEYPAD9] = SDLK_KP9;

	keymap[SCANCODE_CURSORUPRIGHT] = SDLK_KP9;

	keymap[SCANCODE_KEYPADMINUS] = SDLK_KP_MINUS;

	keymap[SCANCODE_KEYPAD4] = SDLK_KP4;

	keymap[SCANCODE_CURSORLEFT] = SDLK_KP4;

	keymap[SCANCODE_KEYPAD5] = SDLK_KP5;

	keymap[SCANCODE_KEYPAD6] = SDLK_KP6;

	keymap[SCANCODE_CURSORRIGHT] = SDLK_KP6;

	keymap[SCANCODE_KEYPADPLUS] = SDLK_KP_PLUS;

	keymap[SCANCODE_KEYPAD1] = SDLK_KP1;

	keymap[SCANCODE_CURSORDOWNLEFT] = SDLK_KP1;

	keymap[SCANCODE_KEYPAD2] = SDLK_KP2;

	keymap[SCANCODE_CURSORDOWN] = SDLK_KP2;

	keymap[SCANCODE_KEYPAD3] = SDLK_KP3;

	keymap[SCANCODE_CURSORDOWNRIGHT] = SDLK_KP3;

	keymap[SCANCODE_KEYPAD0] = SDLK_KP0;

	keymap[SCANCODE_KEYPADPERIOD] = SDLK_KP_PERIOD;

	keymap[SCANCODE_LESS] = SDLK_LESS;

	keymap[SCANCODE_F11] = SDLK_F11;

	keymap[SCANCODE_F12] = SDLK_F12;

	keymap[SCANCODE_KEYPADENTER] = SDLK_KP_ENTER;

	keymap[SCANCODE_RIGHTCONTROL] = SDLK_RCTRL;

	keymap[SCANCODE_CONTROL] = SDLK_RCTRL;

	keymap[SCANCODE_KEYPADDIVIDE] = SDLK_KP_DIVIDE;

	keymap[SCANCODE_PRINTSCREEN] = SDLK_PRINT;

	keymap[SCANCODE_RIGHTALT] = SDLK_RALT;

	keymap[SCANCODE_BREAK] = SDLK_BREAK;

	keymap[SCANCODE_BREAK_ALTERNATIVE] = SDLK_UNKNOWN;

	keymap[SCANCODE_HOME] = SDLK_HOME;

	keymap[SCANCODE_CURSORBLOCKUP] = SDLK_UP;

	keymap[SCANCODE_PAGEUP] = SDLK_PAGEUP;

	keymap[SCANCODE_CURSORBLOCKLEFT] = SDLK_LEFT;

	keymap[SCANCODE_CURSORBLOCKRIGHT] = SDLK_RIGHT;

	keymap[SCANCODE_END] = SDLK_END;

	keymap[SCANCODE_CURSORBLOCKDOWN] = SDLK_DOWN;

	keymap[SCANCODE_PAGEDOWN] = SDLK_PAGEDOWN;

	keymap[SCANCODE_INSERT] = SDLK_INSERT;

	keymap[SCANCODE_REMOVE] = SDLK_DELETE;

	keymap[119] = SDLK_PAUSE;

	keymap[SCANCODE_RIGHTWIN] = SDLK_RSUPER;

	keymap[SCANCODE_LEFTWIN] = SDLK_LSUPER;

	keymap[127] = SDLK_MENU;

}

static SDL_keysym *GGI_TranslateKey(gii_event *ev, SDL_keysym *keysym)

{

	/* Set the keysym information */

	keysym->scancode = ev->key.button;

	keysym->sym = keymap[ev->key.button];

	keysym->mod = KMOD_NONE;

	/* If UNICODE is on, get the UNICODE value for the key */

	keysym->unicode = 0;

	if (SDL_TranslateUNICODE) 

	{

		keysym->unicode = GII_UNICODE(ev->key.sym);

	}

	return keysym;

}