src/lib/libxdock.c

   1 #include "xdock.h"
   2 #include "network.h"
   3 #include "../../config.h"
   4
   5 #include <string.h>
   6 #include <stdio.h>
   7
   8 int cp(int var, int min, int max, char* var_name, char* function_name)
   9 {
  10         if(var < min || var > max)
  11         {
  12                 fprintf(stderr, "Error: Parameter %s (%d~%d) from function %s has value %d.\n", var_name, min, max, function_name, var);
  13                 return 0;
  14         }
  15         else
  16                 return -1;
  17 }
  18
  19 int xd_connect()
  20 {
  21         return open_connection("localhost");
  22 }
  23
  24 void xd_disconnect()
  25 {
  26         close_connection();
  27 }
  28
  29 void xd_flush()
  30 {
  31         send_command(1, 0x0);
  32 }
  33
  34 const char* xd_version()
  35 {
  36         return VERSION;
  37 }
  38
  39 void xd_draw_point(uchar color, uchar x, uchar y)
  40 {
  41         if(cp(x, 0, 63, "x", "xd_draw_point")
  42         && cp(y, 0, 63, "y", "xd_draw_point"))
  43                 send_command(4, 0x1, color, x, y);
  44 }
  45
  46 void xd_draw_line(uchar color, uchar x1, uchar y1, uchar x2, uchar y2)
  47 {
  48         if(cp(x1, 0, 63, "x1", "xd_draw_line")
  49         && cp(y1, 0, 63, "y1", "xd_draw_line")
  50         && cp(x2, 0, 63, "x2", "xd_draw_line")
  51         && cp(y2, 0, 63, "y2", "xd_draw_line"))
  52                 send_command(6, 0x2, color, x1, y1, x2, y2);
  53 }
  54
  55 void xd_draw_rectangle(uchar color, uchar x1, uchar y1, uchar x2, uchar y2)
  56 {
  57         if(cp(x1, 0, 63, "x1", "xd_draw_rectangle")
  58         && cp(y1, 0, 63, "y1", "xd_draw_rectangle")
  59         && cp(x2, 0, 63, "x2", "xd_draw_rectangle")
  60         && cp(y2, 0, 63, "y2", "xd_draw_rectangle"))
  61                 send_command(6, 0x8, color, x1, y1, x2, y2);
  62 }
  63
  64 void xd_draw_box(uchar fgcolor, uchar bgcolor, uchar x1, uchar y1, uchar x2, uchar y2)
  65 {
  66         if(cp(x1, 0, 63, "x1", "xd_draw_box")
  67         && cp(y1, 0, 63, "y1", "xd_draw_box")
  68         && cp(x2, 0, 63, "x2", "xd_draw_box")
  69         && cp(y2, 0, 63, "y2", "xd_draw_box"))
  70                 send_command(7, 0x9, fgcolor, bgcolor, x1, y1, x2, y2);
  71 }
  72
  73 void xd_move_box(uchar x1, uchar y1, uchar x2, uchar y2, uchar direction, uchar step, uchar bg_color)
  74 {
  75         if(cp(x1, 0, 63, "x1", "xd_move_box")
  76         && cp(y1, 0, 63, "y1", "xd_move_box")
  77         && cp(x2, 0, 63, "x2", "xd_move_box")
  78         && cp(y2, 0, 63, "y2", "xd_move_box")
  79         && cp(direction, 0, 3, "direction", "xd_move_box"))
  80                 send_command(8, 0x3, x1, y1, x2, y2, direction, step, bg_color);
  81 }
  82
  83 void xd_set_color(uchar color, uchar r, uchar g, uchar b)
  84 {
  85         // can't send 0xFF since it's a EOF sign
  86         if(r >= 0x80)
  87                 r--;
  88         if(g >= 0x80)
  89                 g--;
  90         if(b >= 0x80)
  91                 b--;
  92
  93         if(cp(color, 0x80, 0xFF, "color", "xd_set_color"))
  94                 send_command(5, 0x7, color, r, g, b);
  95 }
  96
  97 void xd_write(uchar theme, uchar font, uchar x, uchar y, const char* text)
  98 {
  99         if(cp(x, 0, 63, "x", "xd_write")
 100         && cp(y, 0, 63, "y", "xd_write")
 101         && cp(font, 0, N_FONTS-1, "font", "xd_write"))
 102         {
 103                 send_without_eof(5, 0x4, theme, font, x, y);
 104                 send_bytes(strlen(text), (unsigned char*)text);
 105         }
 106 }
 107
 108 void xd_send_xpm(uchar n, char** xpm)
 109 {
 110         int junk, h, colors;
 111         int i = 0;
 112         size_t ct = 0;
 113         char* str = malloc(1);
 114
 115         // get xpm size
 116         sscanf(xpm[0], "%d %d %d", &junk, &h, &colors);
 117
 118         for(i=0; i<(1+colors+h); i++)
 119         {
 120                 ct += strlen(xpm[i])+1;
 121                 str = realloc(str, ct);
 122                 memcpy(&str[ct - (strlen(xpm[i])+1)], xpm[i], strlen(xpm[i])+1);
 123         }
 124
 125         send_without_eof(2, 0x5, n);
 126         send_bytes(ct, str);
 127         free(str);
 128 }
 129
 130 void xd_draw_image(uchar n, uchar x, uchar y)
 131 {
 132         if(cp(x, 0, 63, "x", "xd_draw_image")
 133         && cp(y, 0, 63, "y", "xd_draw_image"))
 134                 send_command(4, 0x6, n, x, y);
 135 }
 136
 137 void xd_led_draw_panel(uchar x1, uchar y1, uchar x2, uchar y2)
 138 {
 139         if(cp(x1, 0, 63, "x1", "xd_led_draw_panel")
 140         && cp(y1, 0, 63, "y1", "xd_led_draw_panel")
 141         && cp(x2, 0, 63, "x2", "xd_led_draw_panel")
 142         && cp(y2, 0, 63, "y2", "xd_led_draw_panel"))
 143                 send_command(5, 0xA0, x1, y1, x2, y2);
 144 }
 145
 146 void xd_draw_panel(uchar theme, uchar x1, uchar y1, uchar x2, uchar y2)
 147 {
 148         if(cp(theme, 0, 31, "theme", "xd_draw_panel")
 149         && cp(x1, 0, 63, "x1", "xd_draw_panel")
 150         && cp(y1, 0, 63, "y1", "xd_draw_panel")
 151         && cp(x2, 0, 63, "x2", "xd_draw_panel")
 152         && cp(y2, 0, 63, "y2", "xd_draw_panel"))
 153                 send_command(6, 0xA1, theme, x1, y1, x2, y2);
 154 }
 155
 156 void xd_grab_events(uchar event_mask, uchar x1, uchar y1, uchar x2, uchar y2)
 157 {
 158         if(cp(x1, 0, 63, "x1", "xd_grab_events")
 159         && cp(y1, 0, 63, "y1", "xd_grab_events")
 160         && cp(x2, 0, 63, "x2", "xd_grab_events")
 161         && cp(y2, 0, 63, "y2", "xd_grab_events")
 162         && cp(event_mask, 0, 7, "event_mask", "xd_grab_events"))
 163                 send_command(6, 0x0A, event_mask, x1, y1, x2, y2);
 164 }
 165
 166 int xd_next_event(xd_event_t* event)
 167 {
 168         unsigned char* c = read_data(4);
 169         if(c == NULL)
 170                 return 0;
 171         else
 172         {
 173                 event->type = c[0];
 174                 event->x = c[1];
 175                 event->y = c[2];
 176                 event->button = c[3];
 177                 free(c);
 178                 return 1;
 179         }
 180 }