Mercurial > sdl-ios-xcode

comparison src/video/gem/SDL_gemmouse.c @ 281:c5010ab8ba35

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added initial support for Atari (thanks Patrice!)
author Sam Lantinga <slouken@libsdl.org>
date Sun, 17 Feb 2002 19:54:28 +0000
parents
children f6ffac90895c
comparison
equal deleted inserted replaced
280:0ddcea45d829 281:c5010ab8ba35
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@libsdl.org
21 */
22
23 #ifdef SAVE_RCSID
24 static char rcsid =
25 "@(#) $Id$";
26 #endif
27
28 /*
29 * GEM Mouse manager
30 *
31 * Patrice Mandin
32 */
33
34 #include <stdlib.h>
35
36 #include <gem.h>
37
38 #include "SDL_error.h"
39 #include "SDL_mouse.h"
40 #include "SDL_events_c.h"
41 #include "SDL_cursor_c.h"
42 #include "SDL_gemmouse_c.h"
43
44 /* Defines */
45
46 #define MAXCURWIDTH 16
47 #define MAXCURHEIGHT 16
48
49 /* The implementation dependent data for the window manager cursor */
50 struct WMcursor {
51 MFORM *mform_p;
52 };
53
54
55 void GEM_FreeWMCursor(_THIS, WMcursor *cursor)
56 {
57 if (cursor == NULL)
58 return;
59
60 graf_mouse(ARROW, NULL);
61
62 if (cursor->mform_p != NULL)
63 free(cursor->mform_p);
64
65 free(cursor);
66 }
67
68 WMcursor *GEM_CreateWMCursor(_THIS,
69 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
70 {
71 WMcursor *cursor;
72 MFORM *new_mform;
73 int i;
74
75 /* Check the size */
76 if ( (w > MAXCURWIDTH) || (h > MAXCURHEIGHT) ) {
77 SDL_SetError("Only cursors of dimension (%dx%d) are allowed",
78 MAXCURWIDTH, MAXCURHEIGHT);
79 return(NULL);
80 }
81
82 /* Allocate the cursor memory */
83 cursor = (WMcursor *)malloc(sizeof(WMcursor));
84 if ( cursor == NULL ) {
85 SDL_OutOfMemory();
86 return(NULL);
87 }
88
89 /* Allocate mform */
90 new_mform = (MFORM *)malloc(sizeof(MFORM));
91 if (new_mform == NULL) {
92 free(cursor);
93 SDL_OutOfMemory();
94 return(NULL);
95 }
96
97 cursor->mform_p = new_mform;
98
99 new_mform->mf_xhot = hot_x;
100 new_mform->mf_yhot = hot_y;
101 new_mform->mf_nplanes = 1;
102 new_mform->mf_fg = 0;
103 new_mform->mf_bg = 1;
104
105 for (i=0;i<MAXCURHEIGHT;i++)
106 {
107 new_mform->mf_mask[i]=0;
108 new_mform->mf_data[i]=0;
109 }
110
111 if (w<=8) {
112 for (i=0;i<h;i++)
113 {
114 new_mform->mf_mask[i]= mask[i]<<8;
115 new_mform->mf_data[i]= data[i]<<8;
116 }
117 } else {
118 for (i=0;i<h;i++)
119 {
120 new_mform->mf_mask[i]= mask[i<<1]<<8 | mask[(i<<1)+1];
121 new_mform->mf_data[i]= data[i<<1]<<8 | data[(i<<1)+1];
122 }
123 }
124
125 return cursor;
126 }
127
128 int GEM_ShowWMCursor(_THIS, WMcursor *cursor)
129 {
130 if (cursor == NULL) {
131 graf_mouse(M_OFF, NULL);
132 } else if (cursor->mform_p) {
133 graf_mouse(USER_DEF, cursor->mform_p);
134 }
135
136 return 1;
137 }
138
139 void GEM_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
140 {
141 EVNTREC warpevent;
142
143 warpevent.ap_event = APPEVNT_MOUSE;
144 warpevent.ap_value = (y << 16) | x;
145
146 appl_tplay(&warpevent, 1, 1000);
147 }
148
149 void GEM_CheckMouseMode(_THIS)
150 {
151 /* If the mouse is hidden and input is grabbed, we use relative mode */
152 if ( !(SDL_cursorstate & CURSOR_VISIBLE) &&
153 (this->input_grab != SDL_GRAB_OFF) ) {
154 GEM_mouse_relative = SDL_TRUE;
155 } else {
156 GEM_mouse_relative = SDL_FALSE;
157 }
158 }