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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5131 | clevermous | 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
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| 3 | Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga |
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| 4 | |||
| 5 | This library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Library General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2 of the License, or (at your option) any later version. |
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| 9 | |||
| 10 | This library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Library General Public License for more details. |
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| 14 | |||
| 15 | You should have received a copy of the GNU Library General Public |
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| 16 | License along with this library; if not, write to the Free |
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| 17 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 18 | |||
| 19 | Sam Lantinga |
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| 20 | slouken@devolution.com |
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| 21 | */ |
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| 22 | |||
| 23 | |||
| 24 | /* Application focus/iconification handling code for SDL */ |
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| 25 | |||
| 26 | #include |
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| 27 | #include |
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| 28 | |||
| 29 | #include "SDL_events.h" |
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| 30 | #include "SDL_events_c.h" |
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| 31 | |||
| 32 | |||
| 33 | /* These are static for our active event handling code */ |
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| 34 | static Uint8 SDL_appstate = 0; |
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| 35 | |||
| 36 | /* Public functions */ |
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| 37 | int SDL_AppActiveInit(void) |
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| 38 | { |
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| 39 | /* Start completely active */ |
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| 40 | SDL_appstate = (SDL_APPACTIVE|SDL_APPINPUTFOCUS|SDL_APPMOUSEFOCUS); |
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| 41 | |||
| 42 | /* That's it! */ |
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| 43 | return(0); |
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| 44 | } |
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| 45 | |||
| 46 | Uint8 SDL_GetAppState(void) |
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| 47 | { |
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| 48 | return(SDL_appstate); |
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| 49 | } |
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| 50 | |||
| 51 | /* This is global for SDL_eventloop.c */ |
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| 52 | int SDL_PrivateAppActive(Uint8 gain, Uint8 state) |
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| 53 | { |
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| 54 | int posted; |
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| 55 | Uint8 new_state; |
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| 56 | |||
| 57 | /* Modify the current state with the given mask */ |
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| 58 | if ( gain ) { |
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| 59 | new_state = (SDL_appstate | state); |
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| 60 | } else { |
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| 61 | new_state = (SDL_appstate & ~state); |
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| 62 | } |
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| 63 | |||
| 64 | /* Drop events that don't change state */ |
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| 65 | if ( new_state == SDL_appstate ) { |
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| 66 | return(0); |
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| 67 | } |
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| 68 | |||
| 69 | /* Update internal active state */ |
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| 70 | SDL_appstate = new_state; |
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| 71 | |||
| 72 | /* Post the event, if desired */ |
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| 73 | posted = 0; |
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| 74 | if ( SDL_ProcessEvents[SDL_ACTIVEEVENT] == SDL_ENABLE ) { |
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| 75 | SDL_Event event; |
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| 76 | memset(&event, 0, sizeof(event)); |
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| 77 | event.type = SDL_ACTIVEEVENT; |
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| 78 | event.active.gain = gain; |
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| 79 | event.active.state = state; |
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| 80 | if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) { |
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| 81 | posted = 1; |
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| 82 | SDL_PushEvent(&event); |
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| 83 | } |
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| 84 | } |
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| 85 | |||
| 86 | /* If we lost keyboard focus, post key-up events */ |
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| 87 | if ( (state & SDL_APPINPUTFOCUS) && !gain ) { |
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| 88 | SDL_ResetKeyboard(); |
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| 89 | } |
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| 90 | return(posted); |
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| 91 | } |