src/video/photon/SDL_ph_mouse.c
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FUNCTIONS
This source file includes following functions.
- ph_FreeWMCursor
- ph_CreateWMCursor
- ph_GetWMPhCursor
- ph_ShowWMCursor
- ph_WarpWMCursor
- ph_CheckMouseMode
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: SDL_ph_mouse.c,v 1.1.2.8 2001/02/10 07:20:07 hercules Exp $";
26 #endif
27
28 #include <stdlib.h>
29 #include <stdio.h>
30 #include <string.h>
31
32 #include "SDL_error.h"
33 #include "SDL_mouse.h"
34 #include "SDL_events_c.h"
35 #include "SDL_cursor_c.h"
36 #include "SDL_ph_mouse_c.h"
37
38 struct WMcursor {
39 PhCursorDef_t *ph_cursor ;
40 };
41
42
43 void ph_FreeWMCursor(_THIS, WMcursor *cursor)
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44 {
45
46 if ( window != NULL ) {
47 SDL_Lock_EventThread();
48
49 if (PtSetResource( window, Pt_ARG_CURSOR_TYPE, Ph_CURSOR_INHERIT, 0 ) < 0)
50 {
51 //TODO: output error msg
52 }
53
54 SDL_Unlock_EventThread();
55 }
56 //free(cursor->ph_cursor.images);
57 free(cursor);
58 }
59
60 WMcursor *ph_CreateWMCursor(_THIS,
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61 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
62 {
63 WMcursor* cursor;
64 int clen, i;
65
66 /* Allocate and initialize the cursor memory */
67 if ((cursor = (WMcursor*)malloc(sizeof(WMcursor))) == NULL)
68 {
69 SDL_OutOfMemory();
70 return(NULL);
71 }
72 memset(cursor,0,sizeof(WMcursor));
73
74 cursor->ph_cursor = (PhCursorDef_t *) malloc(sizeof(PhCursorDef_t) + 32*4*2);
75 if(cursor->ph_cursor == NULL)
76 printf("cursor malloc failed\n");
77
78 memset(cursor->ph_cursor,0,(sizeof(PhCursorDef_t) + 32*4*2));
79
80 cursor->ph_cursor->hdr.type =Ph_RDATA_CURSOR;
81 cursor->ph_cursor->size1.x = (short)w;
82 cursor->ph_cursor->size1.y = (short)h;
83 cursor->ph_cursor->offset1.x = (short)hot_x;
84 cursor->ph_cursor->offset1.y = (short)hot_y;
85 cursor->ph_cursor->bytesperline1 = (char)w/8;
86 cursor->ph_cursor->color1 = Pg_WHITE;
87 cursor->ph_cursor->size2.x = (short)w;
88 cursor->ph_cursor->size2.y = (short)h;
89 cursor->ph_cursor->offset2.x = (short)hot_x;
90 cursor->ph_cursor->offset2.y = (short)hot_y;
91 cursor->ph_cursor->bytesperline2 = (char)w/8;
92 cursor->ph_cursor->color2 = Pg_BLACK;
93
94 clen = (w/8)*h;
95
96 /* Copy the mask and the data to different
97 bitmap planes */
98 for ( i=0; i<clen; ++i ) {
99 cursor->ph_cursor->images[i] = data[i];
100 cursor->ph_cursor->images[i+clen] = mask[i];
101 }
102
103 //#bytes following the hdr struct
104 cursor->ph_cursor->hdr.len =sizeof(PhCursorDef_t) + clen*2 - sizeof(PhRegionDataHdr_t);
105
106 return (cursor);
107 }
108
109
110 PhCursorDef_t ph_GetWMPhCursor(WMcursor *cursor)
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111 {
112
113 return(*cursor->ph_cursor);
114 }
115
116
117 int ph_ShowWMCursor(_THIS, WMcursor *cursor)
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118 {
119 PtArg_t args[3];
120 int nargs = 0;
121 short cursor_is_defined = 0;
122
123
124
125 /* Don't do anything if the display is gone */
126 if ( window == NULL ) {
127 return(0);
128 }
129
130 /* Set the photon cursor cursor, or blank if cursor is NULL */
131 if ( window ) {
132
133 if ( cursor != NULL ) {
134 PtSetArg( &args[0], Pt_ARG_CURSOR_TYPE, Ph_CURSOR_BITMAP, 0 );
135 // Could set next to any PgColor_t value
136 PtSetArg( &args[1], Pt_ARG_CURSOR_COLOR,Ph_CURSOR_DEFAULT_COLOR , 0 );
137 PtSetArg( &args[2], Pt_ARG_BITMAP_CURSOR, cursor->ph_cursor, (cursor->ph_cursor->hdr.len + sizeof(PhRegionDataHdr_t)) );
138 nargs = 3;
139 cursor_is_defined = 1;
140 }
141 else // Ph_CURSOR_NONE
142 {
143 PtSetArg( &args[0], Pt_ARG_CURSOR_TYPE,Ph_CURSOR_NONE, 0);
144 nargs = 1;
145 cursor_is_defined = 1;
146 }
147 if (cursor_is_defined)
148 {
149 SDL_Lock_EventThread();
150
151 if (PtSetResources( window, nargs, args ) < 0 )
152 {
153 return(0);
154 }
155
156 SDL_Unlock_EventThread();
157 }
158 else
159 return(0);
160 }
161 return(1);
162 }
163
164 void ph_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
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165 {
166
167 SDL_Lock_EventThread();
168 PhMoveCursorRel( PhInputGroup(NULL), x, y );
169 SDL_Unlock_EventThread();
170 }
171
172
173 void ph_CheckMouseMode(_THIS)
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174 {
175
176 mouse_relative = 1;
177 }