Return to ioctls.m CVS log

Up to [NeXTSTEP 3.3 examples] / Examples / AppKit / Backspace

Annotation of Examples/AppKit/Backspace/ioctls.m, revision 1.1

1.1     ! root        1: //     ioctls.m
        !             2: //
        !             3: //  This file contains methods related to blacking out screens; this used
        !             4: //  to be done via ioctls (hence the name) but for 3.0 there's a better
        !             5: //  interface.
        !             6: //
        !             7: //  You may freely copy, distribute, and reuse the code in this example.
        !             8: //  NeXT disclaims any warranty of any kind, expressed or  implied, as to its
        !             9: //  fitness for any particular use.
        !            10: 
        !            11: 
        !            12: #import "Thinker.h"
        !            13: #import "BackWindow.h"
        !            14: #import "psfuncts.h"
        !            15: #import <appkit/Window.h>
        !            16: #import <objc/List.h>
        !            17: #import <libc.h>
        !            18: 
        !            19: 
        !            20: @implementation Thinker(ioctls)
        !            21: 
        !            22: - normalMode
        !            23: {
        !            24:        [self _setDimBrightness : &dimBrightness];
        !            25:        return self;
        !            26: }
        !            27: 
        !            28: - screenSaverMode
        !            29: {
        !            30:        // this method prevents the screen from dimming so you can see the
        !            31:        // screen saver.  Just return self right here if you want the screen
        !            32:        // to go dim while the screensaver is doing its thing.
        !            33: 
        !            34:        [self getNormalBrightness :&normalBrightness];
        !            35:        [self _setDimBrightness :&normalBrightness];
        !            36: 
        !            37:        return self;
        !            38: }
        !            39: 
        !            40: 
        !            41: // In the multi-headed case, I gotta throw a black window over all
        !            42: // the screens so they don't burn in while I do animation on one.
        !            43: // You'd want to black out all screen in every case if you switched
        !            44: // animations on the fly to prevent the screen from possibly being
        !            45: // unlocked for a moment.
        !            46: 
        !            47: // Hmm, I don't know why I didn't just put a single big non retained
        !            48: // window over all screens instead...
        !            49: 
        !            50: - blackOutAllScreens
        !            51: {
        !            52:        int i;
        !            53:        NXRect r;
        !            54:                
        !            55:        if (screenCount <= 1) return self;
        !            56: 
        !            57:        if (!screenList) screenList = [[List alloc] init];
        !            58: 
        !            59:        for (i=0; i < screenCount; i++)
        !            60:        {
        !            61:                id theWindow;
        !            62:                r = screens[i].screenBounds;
        !            63:                        
        !            64:                theWindow = [[BackWindow alloc]
        !            65:                                initContent:&r style:NX_TOKENSTYLE
        !            66:                                backing:NX_NONRETAINED buttonMask:0 defer:NO];
        !            67: 
        !            68:                [screenList addObject:theWindow];
        !            69: 
        !            70:                [theWindow removeFromEventMask:(NX_LMOUSEDOWNMASK | NX_LMOUSEUPMASK
        !            71:                           | NX_MOUSEMOVEDMASK | NX_LMOUSEDRAGGEDMASK
        !            72:                           | NX_MOUSEENTEREDMASK | NX_MOUSEEXITEDMASK
        !            73:                           | NX_KEYDOWNMASK | NX_KEYUPMASK
        !            74:                           | NX_CURSORUPDATEMASK)];
        !            75:                [theWindow setBackgroundGray:NX_BLACK];
        !            76: 
        !            77:                tweakWindow([theWindow windowNum], SAVERTIER-1);
        !            78:                [theWindow placeWindowAndDisplay:&r];
        !            79:                [theWindow orderFront:self];
        !            80: 
        !            81:        }
        !            82: 
        !            83:        return self;
        !            84: }
        !            85: 
        !            86: - unBlackOutAllScreens
        !            87: {
        !            88:        if (screenCount <= 1) return self;
        !            89:        [screenList makeObjectsPerform:@selector(orderOut:) with:self];
        !            90:        [screenList freeObjects];
        !            91:        return self;
        !            92: }
        !            93: 
        !            94: - getDimBrightness:(double *)b
        !            95: {
        !            96:        *b = NXAutoDimBrightness(evs);
        !            97:        return self;
        !            98: }
        !            99: 
        !           100: - _setDimBrightness :(double *)b
        !           101: {
        !           102:        NXSetAutoDimBrightness(evs, *b);
        !           103:        if (NXAutoDimState(evs))
        !           104:        {
        !           105:                NXSetAutoDimState(evs, NO);
        !           106:                NXSetAutoDimState(evs, YES);
        !           107:        }
        !           108:        return self;
        !           109: }
        !           110: 
        !           111: 
        !           112: - getNormalBrightness :(double *)b
        !           113: {
        !           114:        *b = NXScreenBrightness(evs);
        !           115:        return self;
        !           116: }
        !           117: 
        !           118: 
        !           119: - getDimTime :(double *)t
        !           120: {
        !           121:        *t = NXAutoDimTime(evs);
        !           122:        return self;
        !           123: }
        !           124: 
        !           125: @end
        !           126: 

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.