e14743d1 |
1 | /* |
2 | SDL - Simple DirectMedia Layer |
3 | Copyright (C) 1997-2009 Sam Lantinga |
4 | |
5 | This library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 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 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with this library; if not, write to the Free Software |
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
18 | |
19 | Sam Lantinga |
20 | slouken@libsdl.org |
21 | */ |
22 | #include "SDL_config.h" |
23 | |
24 | /* Useful variables and functions from SDL_cursor.c */ |
25 | #include "SDL_mouse.h" |
26 | |
27 | extern int SDL_CursorInit(Uint32 flags); |
28 | extern void SDL_CursorPaletteChanged(void); |
29 | extern void SDL_DrawCursor(SDL_Surface *screen); |
30 | extern void SDL_DrawCursorNoLock(SDL_Surface *screen); |
31 | extern void SDL_EraseCursor(SDL_Surface *screen); |
32 | extern void SDL_EraseCursorNoLock(SDL_Surface *screen); |
33 | extern void SDL_UpdateCursor(SDL_Surface *screen); |
34 | extern void SDL_ResetCursor(void); |
35 | extern void SDL_MoveCursor(int x, int y); |
36 | extern void SDL_CursorQuit(void); |
37 | |
38 | #define INLINE_MOUSELOCK |
39 | #ifdef INLINE_MOUSELOCK |
40 | /* Inline (macro) versions of the mouse lock functions */ |
41 | #include "SDL_mutex.h" |
42 | |
43 | extern SDL_mutex *SDL_cursorlock; |
44 | |
45 | #define SDL_LockCursor() \ |
46 | do { \ |
47 | if ( SDL_cursorlock ) { \ |
48 | SDL_mutexP(SDL_cursorlock); \ |
49 | } \ |
50 | } while ( 0 ) |
51 | #define SDL_UnlockCursor() \ |
52 | do { \ |
53 | if ( SDL_cursorlock ) { \ |
54 | SDL_mutexV(SDL_cursorlock); \ |
55 | } \ |
56 | } while ( 0 ) |
57 | #else |
58 | extern void SDL_LockCursor(void); |
59 | extern void SDL_UnlockCursor(void); |
60 | #endif /* INLINE_MOUSELOCK */ |
61 | |
62 | /* Only for low-level mouse cursor drawing */ |
63 | extern SDL_Cursor *SDL_cursor; |
64 | extern void SDL_MouseRect(SDL_Rect *area); |
65 | |
66 | /* State definitions for the SDL cursor */ |
67 | #define CURSOR_VISIBLE 0x01 |
68 | #define CURSOR_USINGSW 0x10 |
69 | #define SHOULD_DRAWCURSOR(X) \ |
70 | (((X)&(CURSOR_VISIBLE|CURSOR_USINGSW)) == \ |
71 | (CURSOR_VISIBLE|CURSOR_USINGSW)) |
72 | |
73 | extern volatile int SDL_cursorstate; |