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Annotation of previous/src/statusbar.c, revision 1.1

1.1     ! root        1: /*
        !             2:   Hatari - statusbar.c
        !             3: 
        !             4:   This file is distributed under the GNU Public License, version 2 or at
        !             5:   your option any later version. Read the file gpl.txt for details.
        !             6: 
        !             7:   Code to draw statusbar area, floppy leds etc.
        !             8: 
        !             9:   Use like this:
        !            10:   - Before screen surface is (re-)created Statusbar_SetHeight()
        !            11:     has to be called with the new screen height. Add the returned
        !            12:     value to screen height (zero means no statusbar).  After this,
        !            13:     Statusbar_GetHeight() can be used to retrieve the statusbar size
        !            14:   - After screen surface is (re-)created, call Statusbar_Init()
        !            15:     to re-initialize / re-draw the statusbar
        !            16:   - Call Statusbar_SetFloppyLed() to set floppy drive led ON/OFF,
        !            17:     or call Statusbar_EnableHDLed() to enabled HD led for a while
        !            18:   - Whenever screen is redrawn, call Statusbar_Update() to draw the
        !            19:     updated information to the statusbar (outside of screen locking)
        !            20:   - If screen redraws may be partial, Statusbar_OverlayRestore()
        !            21:     needs to be called before locking the screen for drawing and
        !            22:     Statusbar_OverlayBackup() needs to be called after screen unlocking,
        !            23:     but before calling Statusbar_Update().  These are needed for
        !            24:     hiding the overlay drive led when drive leds are turned OFF.
        !            25:   - If other information shown by Statusbar (TOS version etc) changes,
        !            26:     call Statusbar_UpdateInfo()
        !            27: 
        !            28:   TODO:
        !            29:   - re-calculate colors on each update to make sure they're
        !            30:     correct in Falcon & TT 8-bit palette modes?
        !            31:   - call Statusbar_AddMessage() from log.c?
        !            32: */
        !            33: const char Statusbar_fileid[] = "Hatari statusbar.c : " __DATE__ " " __TIME__;
        !            34: 
        !            35: #include <assert.h>
        !            36: #include "main.h"
        !            37: #include "configuration.h"
        !            38: #include "screenSnapShot.h"
        !            39: #include "sdlgui.h"
        !            40: #include "statusbar.h"
        !            41: #include "video.h"
        !            42: #include "avi_record.h"
        !            43: 
        !            44: #define DEBUG 0
        !            45: #if DEBUG
        !            46: #define DEBUGPRINT(x) printf x
        !            47: #else
        !            48: #define DEBUGPRINT(x)
        !            49: #endif
        !            50: 
        !            51: #define MAX_DRIVE_LEDS (DRIVE_LED_HD + 1)
        !            52: 
        !            53: /* whether drive leds should be ON and their previous shown state */
        !            54: static struct {
        !            55:        bool state;
        !            56:        bool oldstate;
        !            57:        Uint32 expire;  /* when to disable led, valid only if >0 && state=TRUE */
        !            58:        int offset;     /* led x-pos on screen */
        !            59: } Led[MAX_DRIVE_LEDS];
        !            60: 
        !            61: /* drive leds size & y-pos */
        !            62: static SDL_Rect LedRect;
        !            63: 
        !            64: /* overlay led size & pos */
        !            65: static SDL_Rect OverlayLedRect;
        !            66: 
        !            67: /* screen contents left under overlay led */
        !            68: static SDL_Surface *OverlayUnderside;
        !            69: 
        !            70: static enum {
        !            71:        OVERLAY_NONE,
        !            72:        OVERLAY_DRAWN,
        !            73:        OVERLAY_RESTORED
        !            74: } bOverlayState;
        !            75: 
        !            76: static SDL_Rect RecLedRect;
        !            77: static bool bOldRecording;
        !            78: 
        !            79: /* led colors */
        !            80: static Uint32 LedColorOn, LedColorOff, RecColorOn, RecColorOff;
        !            81: static Uint32 GrayBg, LedColorBg;
        !            82: 
        !            83: 
        !            84: #define MAX_MESSAGE_LEN 33
        !            85: typedef struct msg_item {
        !            86:        struct msg_item *next;
        !            87:        char msg[MAX_MESSAGE_LEN+1];
        !            88:        Uint32 timeout; /* msecs, zero=no timeout */
        !            89:        Uint32 expire;  /* when to expire message */
        !            90:        bool shown;
        !            91: } msg_item_t;
        !            92: 
        !            93: static msg_item_t DefaultMessage;
        !            94: static msg_item_t *MessageList = &DefaultMessage;
        !            95: static SDL_Rect MessageRect;
        !            96: 
        !            97: /* rect for both frame skip value and fast forward indicator */
        !            98: static SDL_Rect FrameSkipsRect;
        !            99: static int nOldFrameSkips;
        !           100: static int bOldFastForward;
        !           101: 
        !           102: 
        !           103: /* screen height above statusbar and height of statusbar below screen */
        !           104: static int ScreenHeight;
        !           105: static int StatusbarHeight;
        !           106: 
        !           107: 
        !           108: /*-----------------------------------------------------------------------*/
        !           109: /**
        !           110:  * Return statusbar height for given width and height
        !           111:  */
        !           112: int Statusbar_GetHeightForSize(int width, int height)
        !           113: {
        !           114:        if (ConfigureParams.Screen.bShowStatusbar) {
        !           115:                /* Should check the same thing as SDLGui_SetScreen()
        !           116:                 * does to decide the font size.
        !           117:                 */
        !           118:                if (width >= 640 && height >= (400-24)) {
        !           119:                        return 24;
        !           120:                } else {
        !           121:                        return 12;
        !           122:                }
        !           123:        }
        !           124:        return 0;
        !           125: }
        !           126: 
        !           127: /*-----------------------------------------------------------------------*/
        !           128: /**
        !           129:  * Set screen height used for statusbar height calculation.
        !           130:  *
        !           131:  * Return height of statusbar that should be added to the screen
        !           132:  * height when screen is (re-)created, or zero if statusbar will
        !           133:  * not be shown
        !           134:  */
        !           135: int Statusbar_SetHeight(int width, int height)
        !           136: {
        !           137:        ScreenHeight = height;
        !           138:        StatusbarHeight = Statusbar_GetHeightForSize(width, height);
        !           139:        return StatusbarHeight;
        !           140: }
        !           141: 
        !           142: /*-----------------------------------------------------------------------*/
        !           143: /**
        !           144:  * Return height of statusbar set with Statusbar_SetHeight()
        !           145:  */
        !           146: int Statusbar_GetHeight(void)
        !           147: {
        !           148:        return StatusbarHeight;
        !           149: }
        !           150: 
        !           151: 
        !           152: /*-----------------------------------------------------------------------*/
        !           153: /**
        !           154:  * Enable HD drive led, it will be automatically disabled after a while.
        !           155:  */
        !           156: void Statusbar_EnableHDLed(void)
        !           157: {
        !           158:        /* leds are shown for 1/2 sec after enabling */
        !           159:        Led[DRIVE_LED_HD].expire = SDL_GetTicks() + 1000/2;
        !           160:        Led[DRIVE_LED_HD].state = true;
        !           161: }
        !           162: 
        !           163: /*-----------------------------------------------------------------------*/
        !           164: /**
        !           165:  * Set given floppy drive led state, anything enabling led with this
        !           166:  * needs also to take care of disabling it.
        !           167:  */
        !           168: void Statusbar_SetFloppyLed(drive_index_t drive, bool state)
        !           169: {
        !           170:        assert(drive == DRIVE_LED_A || drive == DRIVE_LED_B);
        !           171:        Led[drive].state = state;
        !           172: }
        !           173: 
        !           174: 
        !           175: /*-----------------------------------------------------------------------*/
        !           176: /**
        !           177:  * Set overlay led size/pos on given screen to internal Rect
        !           178:  * and free previous resources.
        !           179:  */
        !           180: static void Statusbar_OverlayInit(const SDL_Surface *surf)
        !           181: {
        !           182:        int h;
        !           183:        /* led size/pos needs to be re-calculated in case screen changed */
        !           184:        h = surf->h / 50;
        !           185:        OverlayLedRect.w = 2*h;
        !           186:        OverlayLedRect.h = h;
        !           187:        OverlayLedRect.x = surf->w - 5*h/2;
        !           188:        OverlayLedRect.y = h/2;
        !           189:        /* free previous restore surface if it's incompatible */
        !           190:        if (OverlayUnderside &&
        !           191:            OverlayUnderside->w == OverlayLedRect.w &&
        !           192:            OverlayUnderside->h == OverlayLedRect.h &&
        !           193:            OverlayUnderside->format->BitsPerPixel == surf->format->BitsPerPixel) {
        !           194:                SDL_FreeSurface(OverlayUnderside);
        !           195:                OverlayUnderside = NULL;
        !           196:        }
        !           197:        bOverlayState = OVERLAY_NONE;
        !           198: }
        !           199: 
        !           200: /*-----------------------------------------------------------------------*/
        !           201: /**
        !           202:  * (re-)initialize statusbar internal variables for given screen surface
        !           203:  * (sizes&colors may need to be re-calculated for the new SDL surface)
        !           204:  * and draw the statusbar background.
        !           205:  */
        !           206: void Statusbar_Init(SDL_Surface *surf)
        !           207: {
        !           208:        msg_item_t *item;
        !           209:        SDL_Rect ledbox, sbarbox;
        !           210:        int i, fontw, fonth, offset;
        !           211:        const char *text[MAX_DRIVE_LEDS] = { "A:", "B:", "HD:" };
        !           212: 
        !           213:        assert(surf);
        !           214: 
        !           215:        /* dark green and light green for leds themselves */
        !           216:        LedColorOff = SDL_MapRGB(surf->format, 0x00, 0x40, 0x00);
        !           217:        LedColorOn  = SDL_MapRGB(surf->format, 0x00, 0xe0, 0x00);
        !           218:        LedColorBg  = SDL_MapRGB(surf->format, 0x00, 0x00, 0x00);
        !           219:        RecColorOff = SDL_MapRGB(surf->format, 0x40, 0x00, 0x00);
        !           220:        RecColorOn  = SDL_MapRGB(surf->format, 0xe0, 0x00, 0x00);
        !           221:        GrayBg      = SDL_MapRGB(surf->format, 0xc0, 0xc0, 0xc0);
        !           222: 
        !           223:        /* disable leds */
        !           224:        for (i = 0; i < MAX_DRIVE_LEDS; i++) {
        !           225:                Led[i].state = Led[i].oldstate = false;
        !           226:                Led[i].expire = 0;
        !           227:        }
        !           228:        Statusbar_OverlayInit(surf);
        !           229:        
        !           230:        /* disable statusbar if it doesn't fit to video mode */
        !           231:        if (surf->h < ScreenHeight + StatusbarHeight) {
        !           232:                StatusbarHeight = 0;
        !           233:        }
        !           234:        if (!StatusbarHeight) {
        !           235:                return;
        !           236:        }
        !           237: 
        !           238:        /* prepare fonts */
        !           239:        SDLGui_Init();
        !           240:        SDLGui_SetScreen(surf);
        !           241:        SDLGui_GetFontSize(&fontw, &fonth);
        !           242: 
        !           243:        /* video mode didn't match, need to recalculate sizes */
        !           244:        if (surf->h > ScreenHeight + StatusbarHeight) {
        !           245:                StatusbarHeight = fonth + 2;
        !           246:                /* actually statusbar vertical offset */
        !           247:                ScreenHeight = surf->h - StatusbarHeight;
        !           248:        } else {
        !           249:                assert(fonth+2 < StatusbarHeight);
        !           250:        }
        !           251: 
        !           252:        /* draw statusbar background gray so that text shows */
        !           253:        sbarbox.x = 0;
        !           254:        sbarbox.y = surf->h - StatusbarHeight;
        !           255:        sbarbox.w = surf->w;
        !           256:        sbarbox.h = StatusbarHeight;
        !           257:        SDL_FillRect(surf, &sbarbox, GrayBg);
        !           258: 
        !           259:        /* led size */
        !           260:        LedRect.w = fonth/2;
        !           261:        LedRect.h = fonth - 4;
        !           262:        LedRect.y = ScreenHeight + StatusbarHeight/2 - LedRect.h/2;
        !           263: 
        !           264:        /* black box for the leds */
        !           265:        ledbox = LedRect;
        !           266:        ledbox.y -= 1;
        !           267:        ledbox.w += 2;
        !           268:        ledbox.h += 2;
        !           269: 
        !           270:        offset = fontw;
        !           271:        MessageRect.y = LedRect.y - 2;
        !           272:        /* draw led texts and boxes + calculate box offsets */
        !           273:        for (i = 0; i < MAX_DRIVE_LEDS; i++) {
        !           274:                SDLGui_Text(offset, MessageRect.y, text[i]);
        !           275:                offset += strlen(text[i]) * fontw;
        !           276:                offset += fontw/2;
        !           277: 
        !           278:                ledbox.x = offset - 1;
        !           279:                SDL_FillRect(surf, &ledbox, LedColorBg);
        !           280: 
        !           281:                LedRect.x = offset;
        !           282:                SDL_FillRect(surf, &LedRect, LedColorOff);
        !           283: 
        !           284:                Led[i].offset = offset;
        !           285:                offset += LedRect.w + fontw;
        !           286:        }
        !           287: 
        !           288:        /* draw frameskip */
        !           289:        FrameSkipsRect.x = offset;
        !           290:        FrameSkipsRect.y = MessageRect.y;
        !           291:        SDLGui_Text(FrameSkipsRect.x, FrameSkipsRect.y, "FS:");
        !           292:        FrameSkipsRect.x += 3 * fontw + fontw/2;
        !           293:        FrameSkipsRect.w = 4 * fontw;
        !           294:        FrameSkipsRect.h = fonth;
        !           295: 
        !           296:        if(ConfigureParams.System.bFastForward) {
        !           297:                SDLGui_Text(FrameSkipsRect.x, FrameSkipsRect.y, "0 >>");
        !           298:        } else {
        !           299:                SDLGui_Text(FrameSkipsRect.x, FrameSkipsRect.y, "0");
        !           300:        }
        !           301: 
        !           302:        nOldFrameSkips = 0;
        !           303: 
        !           304:        /* intialize messages */
        !           305:        MessageRect.x = FrameSkipsRect.x + FrameSkipsRect.w + fontw;
        !           306:        MessageRect.w = MAX_MESSAGE_LEN * fontw;
        !           307:        MessageRect.h = fonth;
        !           308:        for (item = MessageList; item; item = item->next) {
        !           309:                item->shown = false;
        !           310:        }
        !           311: 
        !           312:        /* draw recording led box */
        !           313:        RecLedRect = LedRect;
        !           314:        RecLedRect.x = surf->w - fontw - RecLedRect.w;
        !           315:        ledbox.x = RecLedRect.x - 1;
        !           316:        SDLGui_Text(ledbox.x - 4*fontw - fontw/2, MessageRect.y, "REC:");
        !           317:        SDL_FillRect(surf, &ledbox, LedColorBg);
        !           318:        SDL_FillRect(surf, &RecLedRect, RecColorOff);
        !           319:        bOldRecording = false;
        !           320: 
        !           321:        /* and blit statusbar on screen */
        !           322:        SDL_UpdateRects(surf, 1, &sbarbox);
        !           323:        DEBUGPRINT(("Draw statusbar\n"));
        !           324: }
        !           325: 
        !           326: 
        !           327: /*-----------------------------------------------------------------------*/
        !           328: /**
        !           329:  * Qeueue new statusbar message 'msg' to be shown for 'msecs' milliseconds
        !           330:  */
        !           331: void Statusbar_AddMessage(const char *msg, Uint32 msecs)
        !           332: {
        !           333:        msg_item_t *item;
        !           334: 
        !           335:        if (!ConfigureParams.Screen.bShowStatusbar) {
        !           336:                /* no sense in queuing messages that aren't shown */
        !           337:                return;
        !           338:        }
        !           339:        item = calloc(1, sizeof(msg_item_t));
        !           340:        assert(item);
        !           341: 
        !           342:        item->next = MessageList;
        !           343:        MessageList = item;
        !           344: 
        !           345:        strncpy(item->msg, msg, MAX_MESSAGE_LEN);
        !           346:        item->msg[MAX_MESSAGE_LEN] = '\0';
        !           347:        DEBUGPRINT(("Add message: '%s'\n", item->msg));
        !           348: 
        !           349:        if (msecs) {
        !           350:                item->timeout = msecs;
        !           351:        } else {
        !           352:                /* show items by default for 2.5 secs */
        !           353:                item->timeout = 2500;
        !           354:        }
        !           355:        item->shown = false;
        !           356: }
        !           357: 
        !           358: /*-----------------------------------------------------------------------*/
        !           359: /**
        !           360:  * Write given 'more' string to 'buffer' and return new end of 'buffer'
        !           361:  */
        !           362: static char *Statusbar_AddString(char *buffer, const char *more)
        !           363: {
        !           364:        while(*more) {
        !           365:                *buffer++ = *more++;
        !           366:        }
        !           367:        return buffer;
        !           368: }
        !           369: 
        !           370: /*-----------------------------------------------------------------------*/
        !           371: /**
        !           372:  * Retrieve/update default statusbar information
        !           373:  */
        !           374: void Statusbar_UpdateInfo(void)
        !           375: {
        !           376:        char *end = DefaultMessage.msg;
        !           377: 
        !           378:        /* CPU MHz */
        !           379:        if (ConfigureParams.System.nCpuFreq > 9) {
        !           380:                *end++ = '0' + ConfigureParams.System.nCpuFreq / 10;
        !           381:        }
        !           382:        *end++ = '0' + ConfigureParams.System.nCpuFreq % 10;
        !           383:        end = Statusbar_AddString(end, "MHz/");
        !           384: 
        !           385:        /* CPU type */
        !           386:        if(ConfigureParams.System.nCpuLevel > 0) {
        !           387:                *end++ = '0';
        !           388:                *end++ = '0' + ConfigureParams.System.nCpuLevel % 10;
        !           389:                *end++ = '0';
        !           390:                *end++ = '/';
        !           391:        }
        !           392: 
        !           393:        /* amount of memory */
        !           394:        if (ConfigureParams.Memory.nMemorySize > 9) {
        !           395:                *end++ = '1';
        !           396:                *end++ = '0' + ConfigureParams.Memory.nMemorySize % 10;
        !           397:        } else {
        !           398:                if (ConfigureParams.Memory.nMemorySize) {
        !           399:                        *end++ = '0' + ConfigureParams.Memory.nMemorySize;
        !           400:                } else {
        !           401:                        end = Statusbar_AddString(end, "1/2");
        !           402:                }
        !           403:        }
        !           404:        end = Statusbar_AddString(end, "MB ");
        !           405: 
        !           406:        /* machine type */
        !           407:                end = Statusbar_AddString(end, "NEXT");
        !           408: 
        !           409:        *end = '\0';
        !           410: 
        !           411:        assert(end - DefaultMessage.msg < MAX_MESSAGE_LEN);
        !           412:        DEBUGPRINT(("Set default message: '%s'\n", DefaultMessage.msg));
        !           413:        DefaultMessage.shown = false;
        !           414: }
        !           415: 
        !           416: /*-----------------------------------------------------------------------*/
        !           417: /**
        !           418:  * Draw 'msg' centered to the message area
        !           419:  */
        !           420: static void Statusbar_DrawMessage(SDL_Surface *surf, const char *msg)
        !           421: {
        !           422:        int fontw, fonth, offset;
        !           423:        SDL_FillRect(surf, &MessageRect, GrayBg);
        !           424:        if (*msg) {
        !           425:                SDLGui_GetFontSize(&fontw, &fonth);
        !           426:                offset = (MessageRect.w - strlen(msg) * fontw) / 2;
        !           427:                SDLGui_Text(MessageRect.x + offset, MessageRect.y, msg);
        !           428:        }
        !           429:        SDL_UpdateRects(surf, 1, &MessageRect);
        !           430:        DEBUGPRINT(("Draw message: '%s'\n", msg));
        !           431: }
        !           432: 
        !           433: /*-----------------------------------------------------------------------*/
        !           434: /**
        !           435:  * If message's not shown, show it.  If message's timed out,
        !           436:  * remove it and show next one.
        !           437:  */
        !           438: static void Statusbar_ShowMessage(SDL_Surface *surf, Uint32 ticks)
        !           439: {
        !           440:        msg_item_t *next;
        !           441: 
        !           442:        if (MessageList->shown) {
        !           443:                if (!MessageList->expire) {
        !           444:                        /* last/default message */
        !           445:                        return;
        !           446:                }
        !           447:                if (MessageList->expire > ticks) {
        !           448:                        /* not timed out yet */
        !           449:                        return;
        !           450:                }
        !           451:                assert(MessageList->next); /* last message shouldn't end here */
        !           452:                next = MessageList->next;
        !           453:                free(MessageList);
        !           454:                MessageList = next;
        !           455:                /* make sure next message gets shown */
        !           456:                MessageList->shown = false;
        !           457:        }
        !           458:        if (!MessageList->shown) {
        !           459:                /* not shown yet, show */
        !           460:                Statusbar_DrawMessage(surf,  MessageList->msg);
        !           461:                if (MessageList->timeout && !MessageList->expire) {
        !           462:                        MessageList->expire = ticks + MessageList->timeout;
        !           463:                }
        !           464:                MessageList->shown = true;
        !           465:        }
        !           466: }
        !           467: 
        !           468: 
        !           469: /*-----------------------------------------------------------------------*/
        !           470: /**
        !           471:  * Save the area that will be left under overlay led
        !           472:  */
        !           473: void Statusbar_OverlayBackup(SDL_Surface *surf)
        !           474: {
        !           475:        if ((StatusbarHeight && ConfigureParams.Screen.bShowStatusbar)
        !           476:            || !ConfigureParams.Screen.bShowDriveLed) {
        !           477:                /* overlay not used with statusbar */
        !           478:                return;
        !           479:        }
        !           480:        assert(surf);
        !           481:        if (!OverlayUnderside) {
        !           482:                SDL_Surface *bak;
        !           483:                SDL_PixelFormat *fmt = surf->format;
        !           484:                bak = SDL_CreateRGBSurface(surf->flags,
        !           485:                                           OverlayLedRect.w, OverlayLedRect.h,
        !           486:                                           fmt->BitsPerPixel,
        !           487:                                           fmt->Rmask, fmt->Gmask, fmt->Bmask,
        !           488:                                           fmt->Amask);
        !           489:                assert(bak);
        !           490:                OverlayUnderside = bak;
        !           491:        }
        !           492:        SDL_BlitSurface(surf, &OverlayLedRect, OverlayUnderside, NULL);
        !           493: }
        !           494: 
        !           495: /*-----------------------------------------------------------------------*/
        !           496: /**
        !           497:  * Restore the area left under overlay led
        !           498:  */
        !           499: void Statusbar_OverlayRestore(SDL_Surface *surf)
        !           500: {
        !           501:        if ((StatusbarHeight && ConfigureParams.Screen.bShowStatusbar)
        !           502:            || !ConfigureParams.Screen.bShowDriveLed) {
        !           503:                /* overlay not used with statusbar */
        !           504:                return;
        !           505:        }
        !           506:        if (bOverlayState == OVERLAY_DRAWN && OverlayUnderside) {
        !           507:                assert(surf);
        !           508:                SDL_BlitSurface(OverlayUnderside, NULL, surf, &OverlayLedRect);
        !           509:                /* this will make the draw function to update this the screen */
        !           510:                bOverlayState = OVERLAY_RESTORED;
        !           511:        }
        !           512: }
        !           513: 
        !           514: /*-----------------------------------------------------------------------*/
        !           515: /**
        !           516:  * Draw overlay led
        !           517:  */
        !           518: static void Statusbar_OverlayDrawLed(SDL_Surface *surf, Uint32 color)
        !           519: {
        !           520:        SDL_Rect rect;
        !           521:        if (bOverlayState == OVERLAY_DRAWN) {
        !           522:                /* some led already drawn */
        !           523:                return;
        !           524:        }
        !           525:        bOverlayState = OVERLAY_DRAWN;
        !           526: 
        !           527:        /* enabled led with border */
        !           528:        rect = OverlayLedRect;
        !           529:        rect.x += 1;
        !           530:        rect.y += 1;
        !           531:        rect.w -= 2;
        !           532:        rect.h -= 2;
        !           533:        SDL_FillRect(surf, &OverlayLedRect, LedColorBg);
        !           534:        SDL_FillRect(surf, &rect, color);
        !           535: }
        !           536: 
        !           537: /*-----------------------------------------------------------------------*/
        !           538: /**
        !           539:  * Draw overlay led onto screen surface if any drives are enabled.
        !           540:  */
        !           541: static void Statusbar_OverlayDraw(SDL_Surface *surf)
        !           542: {
        !           543:        Uint32 currentticks = SDL_GetTicks();
        !           544:        int i;
        !           545: 
        !           546:        assert(surf);
        !           547:        for (i = 0; i < MAX_DRIVE_LEDS; i++) {
        !           548:                if (Led[i].state) {
        !           549:                        if (Led[i].expire && Led[i].expire < currentticks) {
        !           550:                                Led[i].state = false;
        !           551:                                continue;
        !           552:                        }
        !           553:                        Statusbar_OverlayDrawLed(surf, LedColorOn);
        !           554:                        break;
        !           555:                }
        !           556:        }
        !           557:        /* possible state transitions:
        !           558:         *   NONE -> DRAWN -> RESTORED -> DRAWN -> RESTORED -> NONE
        !           559:         * Other than NONE state needs to be updated on screen
        !           560:         */
        !           561:        switch (bOverlayState) {
        !           562:        case OVERLAY_RESTORED:
        !           563:                bOverlayState = OVERLAY_NONE;
        !           564:        case OVERLAY_DRAWN:
        !           565:                SDL_UpdateRects(surf, 1, &OverlayLedRect);
        !           566:                DEBUGPRINT(("Overlay LED = %s\n", bOverlayState==OVERLAY_DRAWN?"ON":"OFF"));
        !           567:                break;
        !           568:        case OVERLAY_NONE:
        !           569:                break;
        !           570:        }
        !           571: }
        !           572: 
        !           573: 
        !           574: /*-----------------------------------------------------------------------*/
        !           575: /**
        !           576:  * Update statusbar information (leds etc) if/when needed.
        !           577:  * 
        !           578:  * May not be called when screen is locked (SDL limitation).
        !           579:  */
        !           580: void Statusbar_Update(SDL_Surface *surf)
        !           581: {
        !           582:        Uint32 color, currentticks;
        !           583:        SDL_Rect rect;
        !           584:        int i;
        !           585: 
        !           586:        if (!(StatusbarHeight && ConfigureParams.Screen.bShowStatusbar)) {
        !           587:                /* not enabled (anymore), show overlay led instead? */
        !           588:                if (ConfigureParams.Screen.bShowDriveLed) {
        !           589:                        Statusbar_OverlayDraw(surf);
        !           590:                }
        !           591:                return;
        !           592:        }
        !           593:        assert(surf);
        !           594:        /* Statusbar_Init() not called before this? */
        !           595:        assert(surf->h == ScreenHeight + StatusbarHeight);
        !           596: 
        !           597:        rect = LedRect;
        !           598:        currentticks = SDL_GetTicks();
        !           599:        for (i = 0; i < MAX_DRIVE_LEDS; i++) {
        !           600:                if (Led[i].expire && Led[i].expire < currentticks) {
        !           601:                        Led[i].state = false;
        !           602:                }
        !           603:                if (Led[i].state == Led[i].oldstate) {
        !           604:                        continue;
        !           605:                }
        !           606:                Led[i].oldstate = Led[i].state;
        !           607:                if (Led[i].state) {
        !           608:                        color = LedColorOn;
        !           609:                } else {
        !           610:                        color = LedColorOff;
        !           611:                }
        !           612:                rect.x = Led[i].offset;
        !           613:                SDL_FillRect(surf, &rect, color);
        !           614:                SDL_UpdateRects(surf, 1, &rect);
        !           615:                DEBUGPRINT(("LED[%d] = %s\n", i, Led[i].state?"ON":"OFF"));
        !           616:        }
        !           617: 
        !           618:        Statusbar_ShowMessage(surf, currentticks);
        !           619: 
        !           620: 
        !           621: }

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