src/video/gem/SDL_gemevents.c
author Sam Lantinga <slouken@libsdl.org>
Fri, 22 Feb 2002 17:39:11 +0000
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child 297 f6ffac90895c
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Library General Public
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    License as published by the Free Software Foundation; either
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    version 2 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Library General Public License for more details.
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    You should have received a copy of the GNU Library General Public
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    License along with this library; if not, write to the Free
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    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#ifdef SAVE_RCSID
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static char rcsid =
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 "@(#) $Id$";
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#endif
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/*
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 * GEM SDL video driver implementation
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 * inspired from the Dummy SDL driver
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 * 
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 * Patrice Mandin
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 * and work from
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 * Olivier Landemarre, Johan Klockars, Xavier Joubert, Claude Attard
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 */
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#include <string.h>
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#include <gem.h>
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#include "SDL.h"
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#include "SDL_sysevents.h"
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#include "SDL_events_c.h"
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#include "SDL_gemvideo.h"
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#include "SDL_gemevents_c.h"
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#include "../ataricommon/SDL_atarikeys.h"	/* for keyboard scancodes */
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/* Defines */
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#define ATARIBIOS_MAXKEYS 128
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/* Variables */
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static unsigned char gem_currentkeyboard[ATARIBIOS_MAXKEYS];
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static unsigned char gem_previouskeyboard[ATARIBIOS_MAXKEYS];
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static unsigned char gem_currentascii[ATARIBIOS_MAXKEYS];
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static short prevmousex, prevmousey, prevmouseb;
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/* The translation tables from a console scancode to a SDL keysym */
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static SDLKey keymap[ATARIBIOS_MAXKEYS];
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/* Functions prototypes */
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static SDL_keysym *TranslateKey(int scancode, int asciicode, SDL_keysym *keysym);
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static int do_messages(_THIS, short *message);
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static void do_keyboard(short kc, short ks);
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static void do_mouse(_THIS, short mx, short my, short mb);
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/* Functions */
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static SDL_keysym *TranslateKey(int scancode, int asciicode, SDL_keysym *keysym)
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{
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	/* Set the keysym information */
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	keysym->scancode = scancode;
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	if (asciicode)
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		keysym->sym = asciicode;		
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	else
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		keysym->sym = keymap[scancode];
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	keysym->mod = KMOD_NONE;
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	keysym->unicode = 0;
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	return(keysym);
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}
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void GEM_InitOSKeymap(_THIS)
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{
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	int i;
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	memset(gem_currentkeyboard, 0, sizeof(gem_currentkeyboard));
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	memset(gem_previouskeyboard, 0, sizeof(gem_previouskeyboard));
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	memset(gem_currentascii, 0, sizeof(gem_currentascii));
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	/* Initialize keymap */
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	for ( i=0; i<sizeof(keymap); i++ )
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		keymap[i] = SDLK_UNKNOWN;
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	/* Functions keys */
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	for ( i = 0; i<10; i++ )
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		keymap[SCANCODE_F1 + i] = SDLK_F1+i;
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	/* Cursor keypad */
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	keymap[SCANCODE_HELP] = SDLK_HELP;
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	keymap[SCANCODE_UNDO] = SDLK_UNDO;
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	keymap[SCANCODE_INSERT] = SDLK_INSERT;
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	keymap[SCANCODE_CLRHOME] = SDLK_HOME;
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	keymap[SCANCODE_UP] = SDLK_UP;
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	keymap[SCANCODE_DOWN] = SDLK_DOWN;
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	keymap[SCANCODE_RIGHT] = SDLK_RIGHT;
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	keymap[SCANCODE_LEFT] = SDLK_LEFT;
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	/* Special keys */
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	keymap[SCANCODE_ESCAPE] = SDLK_ESCAPE;
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	keymap[SCANCODE_BACKSPACE] = SDLK_BACKSPACE;
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	keymap[SCANCODE_TAB] = SDLK_TAB;
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	keymap[SCANCODE_ENTER] = SDLK_RETURN;
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	keymap[SCANCODE_DELETE] = SDLK_DELETE;
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	keymap[SCANCODE_LEFTCONTROL] = SDLK_LCTRL;
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	keymap[SCANCODE_LEFTSHIFT] = SDLK_LSHIFT;
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	keymap[SCANCODE_RIGHTSHIFT] = SDLK_RSHIFT;
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	keymap[SCANCODE_LEFTALT] = SDLK_LALT;
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	keymap[SCANCODE_CAPSLOCK] = SDLK_CAPSLOCK;
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	/* Mouse init */
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	prevmousex = prevmousey = prevmouseb = 0;
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	GEM_mouse_relative = SDL_FALSE;
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}
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void GEM_PumpEvents(_THIS)
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{
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	short mx, my, mb, dummy;
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	int i;
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	SDL_keysym	keysym;
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   136
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	memset(gem_currentkeyboard,0,sizeof(gem_currentkeyboard));
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   138
	
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   139
	for (;;)
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	{
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		int quit, resultat;
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		short buffer[8], kc, ks;
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   143
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		quit = 0;
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   145
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		resultat = evnt_multi(
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			MU_MESAG|MU_TIMER|MU_KEYBD,
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			0,0,0,
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			0,0,0,0,0,
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			0,0,0,0,0,
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			buffer,
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			10,
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			&dummy,&dummy,&dummy,&ks,&kc,&dummy
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   154
		);
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		/* Message event ? */
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		if (resultat & MU_MESAG)
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			quit = do_messages(this, buffer);
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   159
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		/* Keyboard event ? */
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		if (resultat & MU_KEYBD)
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			do_keyboard(kc,ks);
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   163
		else
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			do_keyboard(0,0);
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   165
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		/* Timer event ? */
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		if ((resultat & MU_TIMER) || quit)
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			break;
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   169
	}
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	/* Update mouse */
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	graf_mkstate(&mx, &my, &mb, &dummy);
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	do_mouse(this, mx, my, mb);
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   174
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   175
	/* Now generates keyboard events */
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   176
	for (i=0; i<ATARIBIOS_MAXKEYS; i++) {
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		/* Key pressed ? */
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		if (gem_currentkeyboard[i] && !gem_previouskeyboard[i])
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			SDL_PrivateKeyboard(SDL_PRESSED, TranslateKey(i, gem_currentascii[i], &keysym));
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   180
			
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   181
		/* Key unpressed ? */
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   182
		if (gem_previouskeyboard[i] && !gem_currentkeyboard[i])
285
e5a489f0288c *** empty log message ***
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			SDL_PrivateKeyboard(SDL_RELEASED, TranslateKey(i, gem_currentascii[i], &keysym));
281
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   184
	}
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   186
	memcpy(gem_previouskeyboard,gem_currentkeyboard,sizeof(gem_previouskeyboard));
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   187
}
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   189
static int do_messages(_THIS, short *message)
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{
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	int quit, posted;
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	quit=0;
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   194
	switch (message[0]) {
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		case WM_CLOSED:
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		case AP_TERM:    
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			posted = SDL_PrivateQuit();
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			quit=1;
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			break;
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   200
		case WM_MOVED:
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			wind_set(message[3],WF_CURRXYWH,message[4],message[5],message[6],message[7]);
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			break;
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		case WM_TOPPED:
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			wind_set(message[3],WF_TOP,message[4],0,0,0);
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			SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS);
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   206
			break;
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   207
		case WM_REDRAW:
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			GEM_wind_redraw(this, message[3],&message[4]);
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   209
			break;
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   210
		case WM_ICONIFY:
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   211
		case WM_ALLICONIFY:
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   212
			wind_set(message[3],WF_ICONIFY,message[4],message[5],message[6],message[7]);
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   213
			/* If we're active, make ourselves inactive */
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   214
			if ( SDL_GetAppState() & SDL_APPACTIVE ) {
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   215
				/* Send an internal deactivate event */
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   216
				SDL_PrivateAppActive(0, SDL_APPACTIVE|SDL_APPINPUTFOCUS);
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   217
			}
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   218
			break;
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   219
		case WM_UNICONIFY:
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   220
			wind_set(message[3],WF_UNICONIFY,message[4],message[5],message[6],message[7]);
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   221
			/* If we're not active, make ourselves active */
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   222
			if ( !(SDL_GetAppState() & SDL_APPACTIVE) ) {
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   223
				/* Send an internal activate event */
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   224
				SDL_PrivateAppActive(1, SDL_APPACTIVE);
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   225
			}
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   226
			break;
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   227
		case WM_SIZED:
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   228
			wind_set (message[3], WF_CURRXYWH, message[4], message[5], message[6], message[7]);
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   229
			GEM_win_fulled = SDL_FALSE;		/* Cancel maximized flag */
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   230
			SDL_PrivateResize(message[6], message[7]);
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   231
			break;
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   232
		case WM_FULLED:
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   233
			{
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   234
				short x,y,w,h;
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   235
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   236
				if (GEM_win_fulled) {
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   237
					wind_get (message[3], WF_PREVXYWH, &x, &y, &w, &h);
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   238
					GEM_win_fulled = SDL_FALSE;
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   239
				} else {
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   240
					x = GEM_desk_x;
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   241
					y = GEM_desk_y;
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   242
					w = GEM_desk_w;
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   243
					h = GEM_desk_h;
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   244
					GEM_win_fulled = SDL_TRUE;
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   245
				}
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   246
				wind_set (message[3], WF_CURRXYWH, x, y, w, h);
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   247
				SDL_PrivateResize(w, h);
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diff changeset
   248
			}
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   249
			break;
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   250
		case WM_BOTTOMED:
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diff changeset
   251
		case WM_UNTOPPED:
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   252
			SDL_PrivateAppActive(0, SDL_APPINPUTFOCUS);
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   253
			break;
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diff changeset
   254
	}
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parents:
diff changeset
   255
	
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   256
	return quit;
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   257
}
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   258
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   259
static void do_keyboard(short kc, short ks)
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   260
{
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   261
	int			scancode, asciicode;
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   262
	short		dummy;
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   263
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   264
	if (kc) {
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   265
		scancode=(kc>>8) & 127;
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   266
		asciicode=kc & 255;
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   267
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   268
		gem_currentkeyboard[scancode]=0xFF;
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parents:
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   269
		gem_currentascii[scancode]=asciicode;
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parents:
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	}
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	if (!ks)
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		graf_mkstate(&dummy, &dummy, &dummy, &ks);
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	/* Read special keys */
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	if (ks & K_RSHIFT)
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		gem_currentkeyboard[SCANCODE_RIGHTSHIFT]=0xFF;
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	if (ks & K_LSHIFT)
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		gem_currentkeyboard[SCANCODE_LEFTSHIFT]=0xFF;
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	if (ks & K_CTRL)
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		gem_currentkeyboard[SCANCODE_LEFTCONTROL]=0xFF;
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	if (ks & K_ALT)
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		gem_currentkeyboard[SCANCODE_LEFTALT]=0xFF;
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}
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static void do_mouse(_THIS, short mx, short my, short mb)
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{
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	/* Mouse motion ? */
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	if ((prevmousex!=mx) || (prevmousey!=my)) {
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		if (GEM_mouse_relative) {
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			short wind_pxy[8];
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			wind_get(GEM_handle, WF_WORKXYWH, &wind_pxy[0], &wind_pxy[1], &wind_pxy[2], &wind_pxy[3]);
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			SDL_PrivateMouseMotion(0, 1, mx-wind_pxy[0], my-wind_pxy[1]);
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		} else {
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			SDL_PrivateMouseMotion(0, 1, mx, my);
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		}
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		prevmousex = mx;
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		prevmousey = my;
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	}
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	/* Mouse button ? */
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	if (prevmouseb!=mb) {
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		int i;
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		for (i=0;i<3;i++) {
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			int curbutton, prevbutton;
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			curbutton = mb & (1<<i);
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			prevbutton = prevmouseb & (1<<i);
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			if (curbutton & !prevbutton) {
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				SDL_PrivateMouseButton(SDL_PRESSED, i, 0, 0);
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			}
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			if (!curbutton & prevbutton) {
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				SDL_PrivateMouseButton(SDL_RELEASED, i, 0, 0);
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			}
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		}
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		prevmouseb = mb;
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	}
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}