git.sur5r.net Git - i3/i3/blob - i3bar/src/xcb.c

   1 #include <xcb/xcb.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <string.h>
   5
   6 #include "xcb.h"
   7 #include "outputs.h"
   8 #include "workspaces.h"
   9
  10 xcb_intern_atom_cookie_t atom_cookies[NUM_ATOMS];
  11
  12 uint32_t get_colorpixel(const char *s) {
  13         char strings[3][3] = { { s[0], s[1], '\0'} ,
  14                                { s[2], s[3], '\0'} ,
  15                                { s[4], s[5], '\0'} };
  16         uint8_t r = strtol(strings[0], NULL, 16);
  17         uint8_t g = strtol(strings[1], NULL, 16);
  18         uint8_t b = strtol(strings[2], NULL, 16);
  19         return (r << 16 | g << 8 | b);
  20 }
  21
  22 void init_xcb() {
  23         /* FIXME: xcb_connect leaks Memory */
  24         xcb_connection = xcb_connect(NULL, NULL);
  25         if (xcb_connection_has_error(xcb_connection)) {
  26                 printf("Cannot open display\n");
  27                 exit(EXIT_FAILURE);
  28         }
  29         printf("Connected to xcb\n");
  30
  31         /* We have to request the atoms we need */
  32         #define ATOM_DO(name) atom_cookies[name] = xcb_intern_atom(xcb_connection, 0, strlen(#name), #name);
  33         #include "xcb_atoms.def"
  34
  35         xcb_screens = xcb_setup_roots_iterator(xcb_get_setup(xcb_connection)).data;
  36         xcb_root = xcb_screens->root;
  37
  38         /* FIXME: Maybe we can push that further backwards */
  39         get_atoms();
  40 }
  41
  42 void clean_xcb() {
  43         xcb_disconnect(xcb_connection);
  44 }
  45
  46 void get_atoms() {
  47         xcb_intern_atom_reply_t* reply;
  48         #define ATOM_DO(name)   reply = xcb_intern_atom_reply(xcb_connection, atom_cookies[name], NULL); \
  49                                 atoms[name] = reply->atom; \
  50                                 free(reply);
  51
  52         #include "xcb_atoms.def"
  53         printf("Got Atoms\n");
  54 }
  55
  56 void destroy_windows() {
  57         i3_output *walk = outputs;
  58         while(walk != NULL) {
  59                 if (walk->bar == XCB_NONE) {
  60                         continue;
  61                 }
  62                 xcb_destroy_window(xcb_connection, walk->bar);
  63                 walk->bar = XCB_NONE;
  64         }
  65 }
  66
  67 void create_windows() {
  68         uint32_t mask;
  69         uint32_t values[2];
  70
  71         i3_output* walk = outputs;
  72         while (walk != NULL) {
  73                 if (!walk->active) {
  74                         walk = walk->next;
  75                         continue;
  76                 }
  77                 printf("Creating Window for output %s\n", walk->name);
  78
  79                 walk->bar = xcb_generate_id(xcb_connection);
  80                 mask = XCB_CW_BACK_PIXEL;
  81                 values[0] = xcb_screens->black_pixel;
  82                 xcb_create_window(xcb_connection,
  83                                   xcb_screens->root_depth,
  84                                   walk->bar,
  85                                   xcb_root,
  86                                   walk->rect.x, walk->rect.y,
  87                                   walk->rect.w, 20,
  88                                   1,
  89                                   XCB_WINDOW_CLASS_INPUT_OUTPUT,
  90                                   xcb_screens->root_visual,
  91                                   mask,
  92                                   values);
  93
  94                 xcb_change_property(xcb_connection,
  95                                     XCB_PROP_MODE_REPLACE,
  96                                     walk->bar,
  97                                     atoms[_NET_WM_WINDOW_TYPE],
  98                                     atoms[ATOM],
  99                                     32,
 100                                     1,
 101                                     (unsigned char*) &atoms[_NET_WM_WINDOW_TYPE_DOCK]);
 102
 103                 walk->bargc = xcb_generate_id(xcb_connection);
 104                 xcb_create_gc(xcb_connection,
 105                               walk->bargc,
 106                               walk->bar,
 107                               0,
 108                               NULL);
 109
 110                 xcb_map_window(xcb_connection, walk->bar);
 111                 walk = walk->next;
 112         }
 113         xcb_flush(xcb_connection);
 114 }
 115
 116 void draw_buttons() {
 117         printf("Drawing Buttons...\n");
 118         i3_output *outputs_walk = outputs;
 119         int i = 0;
 120         while (outputs_walk != NULL) {
 121                 if (!outputs_walk->active) {
 122                         printf("Output %s inactive, skipping...\n", outputs_walk->name);
 123                         outputs_walk = outputs_walk->next;
 124                         continue;
 125                 }
 126                 if (outputs_walk->bar == XCB_NONE) {
 127                         create_windows();
 128                 }
 129                 uint32_t color = get_colorpixel("000000");
 130                 xcb_change_gc(xcb_connection,
 131                               outputs_walk->bargc,
 132                               XCB_GC_FOREGROUND,
 133                               &color);
 134                 xcb_rectangle_t rect = { 0, 0, outputs_walk->rect.w, 20 };
 135                 xcb_poly_fill_rectangle(xcb_connection,
 136                                         outputs_walk->bar,
 137                                         outputs_walk->bargc,
 138                                         1,
 139                                         &rect);
 140                 i3_ws *ws_walk = workspaces;
 141                 while (ws_walk != NULL) {
 142                         if (ws_walk->output != outputs_walk) {
 143                                 printf("WS %s on wrong output, skipping...\n", ws_walk->name);
 144                                 ws_walk = ws_walk->next;
 145                                 continue;
 146                         }
 147                         printf("Drawing Button for WS %s...\n", ws_walk->name);
 148                         uint32_t color = get_colorpixel("240000");
 149                         if (ws_walk->visible) {
 150                                 color = get_colorpixel("480000");
 151                         }
 152                         if (ws_walk->urgent) {
 153                                 color = get_colorpixel("002400");
 154                         }
 155                         xcb_change_gc(xcb_connection,
 156                                       outputs_walk->bargc,
 157                                       XCB_GC_FOREGROUND,
 158                                       &color);
 159                         xcb_change_gc(xcb_connection,
 160                                       outputs_walk->bargc,
 161                                       XCB_GC_BACKGROUND,
 162                                       &color);
 163                         xcb_rectangle_t rect = { i + 1, 1, 18, 18 };
 164                         xcb_poly_fill_rectangle(xcb_connection,
 165                                                 outputs_walk->bar,
 166                                                 outputs_walk->bargc,
 167                                                 1,
 168                                                 &rect);
 169                         i += 20;
 170                         ws_walk = ws_walk->next;
 171                 }
 172                 outputs_walk = outputs_walk->next;
 173                 i = 0;
 174         }
 175         xcb_flush(xcb_connection);
 176 }