|
0
|
1 /*
|
|
|
2 SDL - Simple DirectMedia Layer
|
|
|
3 Copyright (C) 1997, 1998, 1999, 2000, 2001 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@devolution.com
|
|
|
21 */
|
|
|
22
|
|
|
23 #ifdef SAVE_RCSID
|
|
|
24 static char rcsid =
|
|
|
25 "@(#) $Id$";
|
|
|
26 #endif
|
|
|
27
|
|
|
28 /* Application focus/iconification handling code for SDL */
|
|
|
29
|
|
|
30 #include <stdio.h>
|
|
|
31 #include <string.h>
|
|
|
32
|
|
|
33 #include "SDL_events.h"
|
|
|
34 #include "SDL_events_c.h"
|
|
|
35
|
|
|
36
|
|
|
37 /* These are static for our active event handling code */
|
|
|
38 static Uint8 SDL_appstate = 0;
|
|
|
39
|
|
|
40 /* Public functions */
|
|
|
41 int SDL_AppActiveInit(void)
|
|
|
42 {
|
|
|
43 /* Start completely active */
|
|
|
44 SDL_appstate = (SDL_APPACTIVE|SDL_APPINPUTFOCUS|SDL_APPMOUSEFOCUS);
|
|
|
45
|
|
|
46 /* That's it! */
|
|
|
47 return(0);
|
|
|
48 }
|
|
|
49
|
|
|
50 Uint8 SDL_GetAppState(void)
|
|
|
51 {
|
|
|
52 return(SDL_appstate);
|
|
|
53 }
|
|
|
54
|
|
|
55 /* This is global for SDL_eventloop.c */
|
|
|
56 int SDL_PrivateAppActive(Uint8 gain, Uint8 state)
|
|
|
57 {
|
|
|
58 int posted;
|
|
|
59 Uint8 new_state;
|
|
|
60
|
|
|
61 /* Modify the current state with the given mask */
|
|
|
62 if ( gain ) {
|
|
|
63 new_state = (SDL_appstate | state);
|
|
|
64 } else {
|
|
|
65 new_state = (SDL_appstate & ~state);
|
|
|
66 }
|
|
|
67
|
|
|
68 /* Drop events that don't change state */
|
|
|
69 if ( new_state == SDL_appstate ) {
|
|
|
70 return(0);
|
|
|
71 }
|
|
|
72
|
|
|
73 /* Update internal active state */
|
|
|
74 SDL_appstate = new_state;
|
|
|
75
|
|
|
76 /* Post the event, if desired */
|
|
|
77 posted = 0;
|
|
|
78 if ( SDL_ProcessEvents[SDL_ACTIVEEVENT] == SDL_ENABLE ) {
|
|
|
79 SDL_Event event;
|
|
|
80 memset(&event, 0, sizeof(event));
|
|
|
81 event.type = SDL_ACTIVEEVENT;
|
|
|
82 event.active.gain = gain;
|
|
|
83 event.active.state = state;
|
|
|
84 if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) {
|
|
|
85 posted = 1;
|
|
|
86 SDL_PushEvent(&event);
|
|
|
87 }
|
|
|
88 }
|
|
|
89
|
|
|
90 /* If we lost keyboard focus, post key-up events */
|
|
|
91 if ( (state & SDL_APPINPUTFOCUS) && !gain ) {
|
|
|
92 SDL_ResetKeyboard();
|
|
|
93 }
|
|
|
94 return(posted);
|
|
|
95 }
|
