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src/video/gem/SDL_gemevents.c
author Patrice Mandin
Thu, 07 Jul 2005 12:10:30 +0000
changeset 1088 6091b9ca1a97
parent 1074 936da0056ed3
child 1089 b3f7c4af00e0
permissions -rw-r--r--
Don't generate multiple mouse focus events 
     1 /*

     2     SDL - Simple DirectMedia Layer

     3     Copyright (C) 1997-2004 Sam Lantinga

     4 

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

     6     modify it under the terms of the GNU Library General Public

     7     License as published by the Free Software Foundation; either

     8     version 2 of the License, or (at your option) any later version.

     9 

    10     This library is distributed in the hope that it will be useful,

    11     but WITHOUT ANY WARRANTY; without even the implied warranty of

    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    13     Library General Public License for more details.

    14 

    15     You should have received a copy of the GNU Library General Public

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

    17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    18 

    19     Sam Lantinga

    20     slouken@libsdl.org

    21 */

    22 

    23 #ifdef SAVE_RCSID

    24 static char rcsid =

    25  "@(#) $Id$";

    26 #endif

    27 

    28 /*

    29  * GEM SDL video driver implementation

    30  * inspired from the Dummy SDL driver

    31  * 

    32  * Patrice Mandin

    33  * and work from

    34  * Olivier Landemarre, Johan Klockars, Xavier Joubert, Claude Attard

    35  */

    36 

    37 #include <string.h>

    38 

    39 #include <gem.h>

    40 

    41 #include "SDL.h"

    42 #include "SDL_sysevents.h"

    43 #include "SDL_events_c.h"

    44 #include "SDL_gemvideo.h"

    45 #include "SDL_gemevents_c.h"

    46 #include "SDL_atarikeys.h"	/* for keyboard scancodes */

    47 #include "SDL_xbiosinterrupt_s.h"

    48 

    49 /* Defines */

    50 

    51 #define ATARIBIOS_MAXKEYS 128

    52 

    53 /* Variables */

    54 

    55 static unsigned char gem_currentkeyboard[ATARIBIOS_MAXKEYS];

    56 static unsigned char gem_previouskeyboard[ATARIBIOS_MAXKEYS];

    57 static unsigned char gem_currentascii[ATARIBIOS_MAXKEYS];

    58 

    59 /* The translation tables from a console scancode to a SDL keysym */

    60 static SDLKey keymap[ATARIBIOS_MAXKEYS];

    61 

    62 /* Functions prototypes */

    63 

    64 static SDL_keysym *TranslateKey(int scancode, int asciicode, SDL_keysym *keysym);

    65 static int do_messages(_THIS, short *message);

    66 static void do_keyboard(short kc, short ks);

    67 static void do_mouse(_THIS, short mx, short my, short mb, short ks);

    68 

    69 /* Functions */

    70 

    71 static SDL_keysym *TranslateKey(int scancode, int asciicode, SDL_keysym *keysym)

    72 {

    73 	/* Set the keysym information */

    74 	keysym->scancode = scancode;

    75 

    76 	if (asciicode)

    77 		keysym->sym = asciicode;		

    78 	else

    79 		keysym->sym = keymap[scancode];

    80 

    81 	keysym->mod = KMOD_NONE;

    82 	keysym->unicode = 0;

    83 

    84 	return(keysym);

    85 }

    86 

    87 void GEM_InitOSKeymap(_THIS)

    88 {

    89 	int i;

    90 

    91 	memset(gem_currentkeyboard, 0, sizeof(gem_currentkeyboard));

    92 	memset(gem_previouskeyboard, 0, sizeof(gem_previouskeyboard));

    93 	memset(gem_currentascii, 0, sizeof(gem_currentascii));

    94 

    95 	/* Initialize keymap */

    96 	for ( i=0; i<sizeof(keymap); i++ )

    97 		keymap[i] = SDLK_UNKNOWN;

    98 

    99 	/* Functions keys */

   100 	for ( i = 0; i<10; i++ )

   101 		keymap[SCANCODE_F1 + i] = SDLK_F1+i;

   102 

   103 	/* Cursor keypad */

   104 	keymap[SCANCODE_HELP] = SDLK_HELP;

   105 	keymap[SCANCODE_UNDO] = SDLK_UNDO;

   106 	keymap[SCANCODE_INSERT] = SDLK_INSERT;

   107 	keymap[SCANCODE_CLRHOME] = SDLK_HOME;

   108 	keymap[SCANCODE_UP] = SDLK_UP;

   109 	keymap[SCANCODE_DOWN] = SDLK_DOWN;

   110 	keymap[SCANCODE_RIGHT] = SDLK_RIGHT;

   111 	keymap[SCANCODE_LEFT] = SDLK_LEFT;

   112 

   113 	/* Special keys */

   114 	keymap[SCANCODE_ESCAPE] = SDLK_ESCAPE;

   115 	keymap[SCANCODE_BACKSPACE] = SDLK_BACKSPACE;

   116 	keymap[SCANCODE_TAB] = SDLK_TAB;

   117 	keymap[SCANCODE_ENTER] = SDLK_RETURN;

   118 	keymap[SCANCODE_DELETE] = SDLK_DELETE;

   119 	keymap[SCANCODE_LEFTCONTROL] = SDLK_LCTRL;

   120 	keymap[SCANCODE_LEFTSHIFT] = SDLK_LSHIFT;

   121 	keymap[SCANCODE_RIGHTSHIFT] = SDLK_RSHIFT;

   122 	keymap[SCANCODE_LEFTALT] = SDLK_LALT;

   123 	keymap[SCANCODE_CAPSLOCK] = SDLK_CAPSLOCK;

   124 

   125 	/* Mouse init */

   126 	GEM_mouse_relative = SDL_FALSE;

   127 }

   128 

   129 void GEM_PumpEvents(_THIS)

   130 {

   131 	short mousex, mousey, mouseb, dummy;

   132 	short kstate, prevkc, prevks;

   133 	int i;

   134 	SDL_keysym	keysym;

   135 

   136 	memset(gem_currentkeyboard,0,sizeof(gem_currentkeyboard));

   137 	prevkc = prevks = 0;

   138 	

   139 	for (;;)

   140 	{

   141 		int quit, resultat, event_mask;

   142 		short buffer[8], kc;

   143 		short x2,y2,w2,h2;

   144 

   145 		quit = 0;

   146 

   147 		event_mask = MU_MESAG|MU_TIMER|MU_KEYBD;

   148 		if (!GEM_fullscreen && (GEM_handle>=0)) {

   149 			wind_get (GEM_handle, WF_WORKXYWH, &x2, &y2, &w2, &h2);

   150 			event_mask |= MU_M1|MU_M2;

   151 		} else {

   152 			x2=y2=w2=h2=0;

   153 		}

   154 

   155 		resultat = evnt_multi(

   156 			event_mask,

   157 			0,0,0,

   158 			MO_ENTER,x2,y2,w2,h2,

   159 			MO_LEAVE,x2,y2,w2,h2,

   160 			buffer,

   161 			10,

   162 			&dummy,&dummy,&dummy,&kstate,&kc,&dummy

   163 		);

   164 

   165 		/* Message event ? */

   166 		if (resultat & MU_MESAG)

   167 			quit = do_messages(this, buffer);

   168 

   169 		/* Keyboard event ? */

   170 		if (resultat & MU_KEYBD) {

   171 			if ((prevkc != kc) || (prevks != kstate)) {

   172 				do_keyboard(kc,kstate);

   173 			} else {

   174 				/* Avoid looping, if repeating same key */

   175 				break;

   176 			}

   177 		}

   178 

   179 		/* Mouse entering/leaving window */

   180 		if (resultat & MU_M1) {

   181 			if (this->input_grab == SDL_GRAB_OFF) {

   182 				if ( !(SDL_GetAppState() & SDL_APPMOUSEFOCUS) ) {

   183 					SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS);

   184 				}

   185 			}

   186 		}

   187 		if (resultat & MU_M2) {

   188 			if (this->input_grab == SDL_GRAB_OFF) {

   189 				if ( (SDL_GetAppState() & SDL_APPMOUSEFOCUS) ) {

   190 					SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS);

   191 				]

   192 			}

   193 		}

   194 

   195 		/* Timer event ? */

   196 		if ((resultat & MU_TIMER) || quit)

   197 			break;

   198 	}

   199 

   200 	/* Update mouse */

   201 	graf_mkstate(&mousex, &mousey, &mouseb, &kstate);

   202 	do_mouse(this, mousex, mousey, mouseb, kstate);

   203 

   204 	/* Now generate keyboard events */

   205 	for (i=0; i<ATARIBIOS_MAXKEYS; i++) {

   206 		/* Key pressed ? */

   207 		if (gem_currentkeyboard[i] && !gem_previouskeyboard[i])

   208 			SDL_PrivateKeyboard(SDL_PRESSED, TranslateKey(i, gem_currentascii[i], &keysym));

   209 			

   210 		/* Key unpressed ? */

   211 		if (gem_previouskeyboard[i] && !gem_currentkeyboard[i])

   212 			SDL_PrivateKeyboard(SDL_RELEASED, TranslateKey(i, gem_currentascii[i], &keysym));

   213 	}

   214 

   215 	memcpy(gem_previouskeyboard,gem_currentkeyboard,sizeof(gem_previouskeyboard));

   216 

   217 	/* Refresh window name ? */

   218 	if (GEM_refresh_name) {

   219 		if ( SDL_GetAppState() & SDL_APPACTIVE ) {

   220 			/* Fullscreen/windowed */

   221 			if (GEM_title_name) {

   222 				wind_set(GEM_handle,WF_NAME,(short)(((unsigned long)GEM_title_name)>>16),(short)(((unsigned long)GEM_title_name) & 0xffff),0,0);

   223 			}

   224 		} else {

   225 			/* Iconified */

   226 			if (GEM_icon_name) {

   227 				wind_set(GEM_handle,WF_NAME,(short)(((unsigned long)GEM_icon_name)>>16),(short)(((unsigned long)GEM_icon_name) & 0xffff),0,0);

   228 			}

   229 		}

   230 		GEM_refresh_name = SDL_FALSE;

   231 	}

   232 }

   233 

   234 static int do_messages(_THIS, short *message)

   235 {

   236 	int quit, posted;

   237 	short x2,y2,w2,h2;

   238 

   239 	quit=0;

   240 	switch (message[0]) {

   241 		case WM_CLOSED:

   242 		case AP_TERM:    

   243 			posted = SDL_PrivateQuit();

   244 			quit=1;

   245 			break;

   246 		case WM_MOVED:

   247 			wind_set(message[3],WF_CURRXYWH,message[4],message[5],message[6],message[7]);

   248 			break;

   249 		case WM_TOPPED:

   250 			wind_set(message[3],WF_TOP,message[4],0,0,0);

   251 			SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS);

   252 			if (VDI_setpalette) {

   253 				VDI_setpalette(this, VDI_curpalette);

   254 			}

   255 			break;

   256 		case WM_REDRAW:

   257 			if (!GEM_lock_redraw) {

   258 				GEM_wind_redraw(this, message[3],&message[4]);

   259 			}

   260 			break;

   261 		case WM_ICONIFY:

   262 		case WM_ALLICONIFY:

   263 			wind_set(message[3],WF_ICONIFY,message[4],message[5],message[6],message[7]);

   264 			/* If we're active, make ourselves inactive */

   265 			if ( SDL_GetAppState() & SDL_APPACTIVE ) {

   266 				/* Send an internal deactivate event */

   267 				SDL_PrivateAppActive(0, SDL_APPACTIVE);

   268 			}

   269 			/* Update window title */

   270 			if (GEM_refresh_name && GEM_icon_name) {

   271 				wind_set(GEM_handle,WF_NAME,(short)(((unsigned long)GEM_icon_name)>>16),(short)(((unsigned long)GEM_icon_name) & 0xffff),0,0);

   272 				GEM_refresh_name = SDL_FALSE;

   273 			}

   274 			break;

   275 		case WM_UNICONIFY:

   276 			wind_set(message[3],WF_UNICONIFY,message[4],message[5],message[6],message[7]);

   277 			/* If we're not active, make ourselves active */

   278 			if ( !(SDL_GetAppState() & SDL_APPACTIVE) ) {

   279 				/* Send an internal activate event */

   280 				SDL_PrivateAppActive(1, SDL_APPACTIVE);

   281 			}

   282 			if (GEM_refresh_name && GEM_title_name) {

   283 				wind_set(GEM_handle,WF_NAME,(short)(((unsigned long)GEM_title_name)>>16),(short)(((unsigned long)GEM_title_name) & 0xffff),0,0);

   284 				GEM_refresh_name = SDL_FALSE;

   285 			}

   286 			break;

   287 		case WM_SIZED:

   288 			wind_set (message[3], WF_CURRXYWH, message[4], message[5], message[6], message[7]);

   289 			wind_get (message[3], WF_WORKXYWH, &x2, &y2, &w2, &h2);

   290 			GEM_win_fulled = SDL_FALSE;		/* Cancel maximized flag */

   291 			GEM_lock_redraw = SDL_TRUE;		/* Prevent redraw till buffers resized */

   292 			SDL_PrivateResize(w2, h2);

   293 			break;

   294 		case WM_FULLED:

   295 			{

   296 				short x,y,w,h;

   297 

   298 				if (GEM_win_fulled) {

   299 					wind_get (message[3], WF_PREVXYWH, &x, &y, &w, &h);

   300 					GEM_win_fulled = SDL_FALSE;

   301 				} else {

   302 					x = GEM_desk_x;

   303 					y = GEM_desk_y;

   304 					w = GEM_desk_w;

   305 					h = GEM_desk_h;

   306 					GEM_win_fulled = SDL_TRUE;

   307 				}

   308 				wind_set (message[3], WF_CURRXYWH, x, y, w, h);

   309 				wind_get (message[3], WF_WORKXYWH, &x2, &y2, &w2, &h2);

   310 				GEM_lock_redraw = SDL_TRUE;		/* Prevent redraw till buffers resized */

   311 				SDL_PrivateResize(w2, h2);

   312 			}

   313 			break;

   314 		case WM_BOTTOMED:

   315 		case WM_UNTOPPED:

   316 			SDL_PrivateAppActive(0, SDL_APPINPUTFOCUS);

   317 			if (VDI_setpalette) {

   318 				VDI_setpalette(this, VDI_oldpalette);

   319 			}

   320 			break;

   321 	}

   322 	

   323 	return quit;

   324 }

   325 

   326 static void do_keyboard(short kc, short ks)

   327 {

   328 	int			scancode, asciicode;

   329 

   330 	if (kc) {

   331 		scancode=(kc>>8) & 127;

   332 		asciicode=kc & 255;

   333 

   334 		gem_currentkeyboard[scancode]=0xFF;

   335 		gem_currentascii[scancode]=asciicode;

   336 	}

   337 

   338 	/* Read special keys */

   339 	if (ks & K_RSHIFT)

   340 		gem_currentkeyboard[SCANCODE_RIGHTSHIFT]=0xFF;

   341 	if (ks & K_LSHIFT)

   342 		gem_currentkeyboard[SCANCODE_LEFTSHIFT]=0xFF;

   343 	if (ks & K_CTRL)

   344 		gem_currentkeyboard[SCANCODE_LEFTCONTROL]=0xFF;

   345 	if (ks & K_ALT)

   346 		gem_currentkeyboard[SCANCODE_LEFTALT]=0xFF;

   347 }

   348 

   349 static void do_mouse(_THIS, short mx, short my, short mb, short ks)

   350 {

   351 	static short prevmousex=0, prevmousey=0, prevmouseb=0;

   352 	short x2, y2, w2, h2;

   353 

   354 	/* Don't return mouse events if out of window */

   355 	if ((SDL_GetAppState() & SDL_APPMOUSEFOCUS)==0) {

   356 		return;

   357 	}

   358 

   359 	/* Retrieve window coords, and generate mouse events accordingly */

   360 	x2 = y2 = 0;

   361 	w2 = VDI_w;

   362 	h2 = VDI_h;

   363 	if ((!GEM_fullscreen) && (GEM_handle>=0)) {

   364 		wind_get (GEM_handle, WF_WORKXYWH, &x2, &y2, &w2, &h2);

   365 

   366 		/* Do not generate mouse button event if out of window working area */

   367 		if ((mx<x2) || (mx>=x2+w2) || (my<y2) || (my>=y2+h2)) {

   368 			mb=prevmouseb;

   369 		}

   370 	}

   371 

   372 	/* Mouse motion ? */

   373 	if ((prevmousex!=mx) || (prevmousey!=my)) {

   374 		if (GEM_mouse_relative) {

   375 			SDL_PrivateMouseMotion(0, 1, SDL_AtariXbios_mousex, SDL_AtariXbios_mousey);

   376 			SDL_AtariXbios_mousex = SDL_AtariXbios_mousey = 0;

   377 		} else {

   378 			int posx, posy;

   379 

   380 			/* Give mouse position relative to window position */

   381 			posx = mx - x2;

   382 			if (posx<0) posx = 0;

   383 			if (posx>w2) posx = w2-1;

   384 			posy = my - y2;

   385 			if (posy<0) posy = 0;

   386 			if (posy>h2) posy = h2-1;

   387 

   388 			SDL_PrivateMouseMotion(0, 0, posx, posy);

   389 		}

   390 		prevmousex = mx;

   391 		prevmousey = my;

   392 	}

   393 

   394 	/* Mouse button ? */

   395 	if (prevmouseb!=mb) {

   396 		int i;

   397 

   398 		for (i=0;i<2;i++) {

   399 			int curbutton, prevbutton;

   400 		

   401 			curbutton = mb & (1<<i);

   402 			prevbutton = prevmouseb & (1<<i);

   403 		

   404 			if (curbutton && !prevbutton) {

   405 				SDL_PrivateMouseButton(SDL_PRESSED, i+1, 0, 0);

   406 			}

   407 			if (!curbutton && prevbutton) {

   408 				SDL_PrivateMouseButton(SDL_RELEASED, i+1, 0, 0);

   409 			}

   410 		}

   411 		prevmouseb = mb;

   412 	}

   413 

   414 	/* Read special keys */

   415 	if (ks & K_RSHIFT)

   416 		gem_currentkeyboard[SCANCODE_RIGHTSHIFT]=0xFF;

   417 	if (ks & K_LSHIFT)

   418 		gem_currentkeyboard[SCANCODE_LEFTSHIFT]=0xFF;

   419 	if (ks & K_CTRL)

   420 		gem_currentkeyboard[SCANCODE_LEFTCONTROL]=0xFF;

   421 	if (ks & K_ALT)

   422 		gem_currentkeyboard[SCANCODE_LEFTALT]=0xFF;

   423 }
SDL