2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2009 Sam Lantinga
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.
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.
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
22 #include "SDL_config.h"
24 /* Useful variables and functions from SDL_cursor.c */
25 #include "SDL_mouse.h"
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);
38 #define INLINE_MOUSELOCK
39 #ifdef INLINE_MOUSELOCK
40 /* Inline (macro) versions of the mouse lock functions */
41 #include "SDL_mutex.h"
43 extern SDL_mutex *SDL_cursorlock;
45 #define SDL_LockCursor() \
47 if ( SDL_cursorlock ) { \
48 SDL_mutexP(SDL_cursorlock); \
51 #define SDL_UnlockCursor() \
53 if ( SDL_cursorlock ) { \
54 SDL_mutexV(SDL_cursorlock); \
58 extern void SDL_LockCursor(void);
59 extern void SDL_UnlockCursor(void);
60 #endif /* INLINE_MOUSELOCK */
62 /* Only for low-level mouse cursor drawing */
63 extern SDL_Cursor *SDL_cursor;
64 extern void SDL_MouseRect(SDL_Rect *area);
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))
73 extern volatile int SDL_cursorstate;