1 #include <stdio.h>
2 #include <stdlib.h>
3
4 #include "SDL.h"
5
6 /* This is an example 16x16 cursor
7 top left : black
8 top right : inverted color or black
9 bottom left: white
10 bottom right: transparent
11 (swap left and right for different endianness)
12 */
13
14 Uint16 cursor_data[16]={
15 0xffff,
16 0xffff,
17 0xffff,
18 0xffff,
19
20 0xffff,
21 0xffff,
22 0xffff,
23 0xffff,
24
25 0x0000,
26 0x0000,
27 0x0000,
28 0x0000,
29
30 0x0000,
31 0x0000,
32 0x0000,
33 0x0000
34 };
35
36 Uint16 cursor_mask[16]={
37 0xff00,
38 0xff00,
39 0xff00,
40 0xff00,
41
42 0xff00,
43 0xff00,
44 0xff00,
45 0xff00,
46
47 0xff00,
48 0xff00,
49 0xff00,
50 0xff00,
51
52 0xff00,
53 0xff00,
54 0xff00,
55 0xff00
56 };
57
58 /* another test cursor: smaller than 16x16, and with an odd height */
59
60 Uint8 small_cursor_data[11] = { 0x00, 0x18, 0x08, 0x38, 0x44, 0x54, 0x44, 0x38, 0x20, 0x20, 0x00 };
61 Uint8 small_cursor_mask[11] = { 0x3C, 0x3C, 0x3C, 0x7C, 0xC6, 0xC6, 0xC6, 0x7C, 0x78, 0x70, 0x70 };
62
63 /* XPM */
64 static const char *arrow[] = {
65 /* width height num_colors chars_per_pixel */
66 " 32 32 3 1",
67 /* colors */
68 "X c #000000",
69 ". c #ffffff",
70 " c None",
71 /* pixels */
72 "X ",
73 "XX ",
74 "X.X ",
75 "X..X ",
76 "X...X ",
77 "X....X ",
78 "X.....X ",
79 "X......X ",
80 "X.......X ",
81 "X........X ",
82 "X.....XXXXX ",
83 "X..X..X ",
84 "X.X X..X ",
85 "XX X..X ",
86 "X X..X ",
87 " X..X ",
88 " X..X ",
89 " X..X ",
90 " XX ",
91 " ",
92 " ",
93 " ",
94 " ",
95 " ",
96 " ",
97 " ",
98 " ",
99 " ",
100 " ",
101 " ",
102 " ",
103 " ",
104 "0,0"
105 };
106
create_arrow_cursor()107 static SDL_Cursor *create_arrow_cursor()
108 {
109 int i, row, col;
110 Uint8 data[4*32];
111 Uint8 mask[4*32];
112 int hot_x, hot_y;
113
114 i = -1;
115 for ( row=0; row<32; ++row ) {
116 for ( col=0; col<32; ++col ) {
117 if ( col % 8 ) {
118 data[i] <<= 1;
119 mask[i] <<= 1;
120 } else {
121 ++i;
122 data[i] = mask[i] = 0;
123 }
124 switch (arrow[4+row][col]) {
125 case 'X':
126 data[i] |= 0x01;
127 mask[i] |= 0x01;
128 break;
129 case '.':
130 mask[i] |= 0x01;
131 break;
132 case ' ':
133 break;
134 }
135 }
136 }
137 sscanf(arrow[4+row], "%d,%d", &hot_x, &hot_y);
138 return SDL_CreateCursor(data, mask, 32, 32, hot_x, hot_y);
139 }
140
141
main(int argc,char * argv[])142 int main(int argc, char *argv[])
143 {
144 SDL_Surface *screen;
145 SDL_bool quit = SDL_FALSE, first_time = SDL_TRUE;
146 SDL_Cursor *cursor[3];
147 int current;
148
149 /* Load the SDL library */
150 if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) {
151 fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError());
152 return(1);
153 }
154
155 screen = SDL_SetVideoMode(320,200,8,SDL_ANYFORMAT);
156 if (screen==NULL) {
157 fprintf(stderr, "Couldn't initialize video mode: %s\n",SDL_GetError());
158 return(1);
159 }
160
161 SDL_FillRect(screen, NULL, 0x664422);
162
163 cursor[0] = SDL_CreateCursor((Uint8 *)cursor_data, (Uint8 *)cursor_mask,
164 16, 16, 8, 8);
165 if (cursor[0]==NULL) {
166 fprintf(stderr, "Couldn't initialize test cursor: %s\n",SDL_GetError());
167 SDL_Quit();
168 return(1);
169 }
170 cursor[1] = create_arrow_cursor();
171 if (cursor[1]==NULL) {
172 fprintf(stderr, "Couldn't initialize arrow cursor: %s\n",SDL_GetError());
173 SDL_FreeCursor(cursor[0]);
174 SDL_Quit();
175 return(1);
176 }
177 cursor[2] = SDL_CreateCursor(small_cursor_data, small_cursor_mask,
178 8, 11, 3, 5);
179 if (cursor[2]==NULL) {
180 fprintf(stderr, "Couldn't initialize test cursor: %s\n",SDL_GetError());
181 SDL_Quit();
182 return(1);
183 }
184
185 current = 0;
186 SDL_SetCursor(cursor[current]);
187
188 while (!quit) {
189 SDL_Event event;
190 while (SDL_PollEvent(&event)) {
191 switch(event.type) {
192 case SDL_MOUSEBUTTONDOWN:
193 current = (current + 1)%3;
194 SDL_SetCursor(cursor[current]);
195 break;
196 case SDL_KEYDOWN:
197 if (event.key.keysym.sym == SDLK_ESCAPE) {
198 quit = SDL_TRUE;
199 }
200 break;
201 case SDL_QUIT:
202 quit = SDL_TRUE;
203 break;
204 }
205 }
206 SDL_Flip(screen);
207 SDL_Delay(1);
208 }
209
210 SDL_FreeCursor(cursor[0]);
211 SDL_FreeCursor(cursor[1]);
212 SDL_FreeCursor(cursor[2]);
213
214 SDL_Quit();
215 return(0);
216 }
217