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comparison src/video/SDL_cursor_c.h @ 0:74212992fb08

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Initial revision
author Sam Lantinga <slouken@lokigames.com>
date Thu, 26 Apr 2001 16:45:43 +0000
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children e8157fcb3114
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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 /* Useful variables and functions from SDL_cursor.c */
29 #include "SDL_mouse.h"
30
31 extern int SDL_CursorInit(Uint32 flags);
32 extern void SDL_CursorPaletteChanged(void);
33 extern void SDL_DrawCursor(SDL_Surface *screen);
34 extern void SDL_DrawCursorNoLock(SDL_Surface *screen);
35 extern void SDL_EraseCursor(SDL_Surface *screen);
36 extern void SDL_EraseCursorNoLock(SDL_Surface *screen);
37 extern void SDL_UpdateCursor(SDL_Surface *screen);
38 extern void SDL_ResetCursor(void);
39 extern void SDL_MoveCursor(int x, int y);
40 extern void SDL_CursorQuit(void);
41
42 #define INLINE_MOUSELOCK
43 #ifdef INLINE_MOUSELOCK
44 /* Inline (macro) versions of the mouse lock functions */
45 #include "SDL_mutex.h"
46
47 extern SDL_mutex *SDL_cursorlock;
48
49 #define SDL_LockCursor() \
50 do { \
51 if ( SDL_cursorlock ) { \
52 SDL_mutexP(SDL_cursorlock); \
53 } \
54 } while ( 0 )
55 #define SDL_UnlockCursor() \
56 do { \
57 if ( SDL_cursorlock ) { \
58 SDL_mutexV(SDL_cursorlock); \
59 } \
60 } while ( 0 )
61 #else
62 extern void SDL_LockCursor(void);
63 extern void SDL_UnlockCursor(void);
64 #endif /* INLINE_MOUSELOCK */
65
66 /* Only for low-level mouse cursor drawing */
67 extern SDL_Cursor *SDL_cursor;
68 extern void SDL_MouseRect(SDL_Rect *area);
69
70 /* State definitions for the SDL cursor */
71 #define CURSOR_VISIBLE 0x01
72 #define CURSOR_USINGSW 0x10
73 #define SHOULD_DRAWCURSOR(X) \
74 (((X)&(CURSOR_VISIBLE|CURSOR_USINGSW)) == \
75 (CURSOR_VISIBLE|CURSOR_USINGSW))
76
77 extern volatile int SDL_cursorstate;