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1.1 root 1: /*
2: SDL - Simple DirectMedia Layer
3: Copyright (C) 1997-2004 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: [email protected]
21: */
22:
23: #ifdef SAVE_RCSID
24: static char rcsid =
25: "@(#) $Id: SDL_mouse.h,v 1.1.1.1 2005/11/18 23:23:29 rswindell Exp $";
26: #endif
27:
28: /* Include file for SDL mouse event handling */
29:
30: #ifndef _SDL_mouse_h
31: #define _SDL_mouse_h
32:
33: #include "SDL_types.h"
34: #include "SDL_video.h"
35:
36: #include "begin_code.h"
37: /* Set up for C function definitions, even when using C++ */
38: #ifdef __cplusplus
39: extern "C" {
40: #endif
41:
42: typedef struct WMcursor WMcursor; /* Implementation dependent */
43: typedef struct SDL_Cursor {
44: SDL_Rect area; /* The area of the mouse cursor */
45: Sint16 hot_x, hot_y; /* The "tip" of the cursor */
46: Uint8 *data; /* B/W cursor data */
47: Uint8 *mask; /* B/W cursor mask */
48: Uint8 *save[2]; /* Place to save cursor area */
49: WMcursor *wm_cursor; /* Window-manager cursor */
50: } SDL_Cursor;
51:
52: /* Function prototypes */
53: /*
54: * Retrieve the current state of the mouse.
55: * The current button state is returned as a button bitmask, which can
56: * be tested using the SDL_BUTTON(X) macros, and x and y are set to the
57: * current mouse cursor position. You can pass NULL for either x or y.
58: */
59: extern DECLSPEC Uint8 SDLCALL SDL_GetMouseState(int *x, int *y);
60:
61: /*
62: * Retrieve the current state of the mouse.
63: * The current button state is returned as a button bitmask, which can
64: * be tested using the SDL_BUTTON(X) macros, and x and y are set to the
65: * mouse deltas since the last call to SDL_GetRelativeMouseState().
66: */
67: extern DECLSPEC Uint8 SDLCALL SDL_GetRelativeMouseState(int *x, int *y);
68:
69: /*
70: * Set the position of the mouse cursor (generates a mouse motion event)
71: */
72: extern DECLSPEC void SDLCALL SDL_WarpMouse(Uint16 x, Uint16 y);
73:
74: /*
75: * Create a cursor using the specified data and mask (in MSB format).
76: * The cursor width must be a multiple of 8 bits.
77: *
78: * The cursor is created in black and white according to the following:
79: * data mask resulting pixel on screen
80: * 0 1 White
81: * 1 1 Black
82: * 0 0 Transparent
83: * 1 0 Inverted color if possible, black if not.
84: *
85: * Cursors created with this function must be freed with SDL_FreeCursor().
86: */
87: extern DECLSPEC SDL_Cursor * SDLCALL SDL_CreateCursor
88: (Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y);
89:
90: /*
91: * Set the currently active cursor to the specified one.
92: * If the cursor is currently visible, the change will be immediately
93: * represented on the display.
94: */
95: extern DECLSPEC void SDLCALL SDL_SetCursor(SDL_Cursor *cursor);
96:
97: /*
98: * Returns the currently active cursor.
99: */
100: extern DECLSPEC SDL_Cursor * SDLCALL SDL_GetCursor(void);
101:
102: /*
103: * Deallocates a cursor created with SDL_CreateCursor().
104: */
105: extern DECLSPEC void SDLCALL SDL_FreeCursor(SDL_Cursor *cursor);
106:
107: /*
108: * Toggle whether or not the cursor is shown on the screen.
109: * The cursor start off displayed, but can be turned off.
110: * SDL_ShowCursor() returns 1 if the cursor was being displayed
111: * before the call, or 0 if it was not. You can query the current
112: * state by passing a 'toggle' value of -1.
113: */
114: extern DECLSPEC int SDLCALL SDL_ShowCursor(int toggle);
115:
116: /* Used as a mask when testing buttons in buttonstate
117: Button 1: Left mouse button
118: Button 2: Middle mouse button
119: Button 3: Right mouse button
120: Button 4: Mouse wheel up (may also be a real button)
121: Button 5: Mouse wheel down (may also be a real button)
122: */
123: #define SDL_BUTTON(X) (SDL_PRESSED << ((X)-1))
124: #define SDL_BUTTON_LEFT 1
125: #define SDL_BUTTON_MIDDLE 2
126: #define SDL_BUTTON_RIGHT 3
127: #define SDL_BUTTON_WHEELUP 4
128: #define SDL_BUTTON_WHEELDOWN 5
129: #define SDL_BUTTON_LMASK SDL_BUTTON(SDL_BUTTON_LEFT)
130: #define SDL_BUTTON_MMASK SDL_BUTTON(SDL_BUTTON_MIDDLE)
131: #define SDL_BUTTON_RMASK SDL_BUTTON(SDL_BUTTON_RIGHT)
132:
133:
134: /* Ends C function definitions when using C++ */
135: #ifdef __cplusplus
136: }
137: #endif
138: #include "close_code.h"
139:
140: #endif /* _SDL_mouse_h */
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