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 handle_xcb_event(xcb_generic_event_t ev) {
  23
  24 }
  25
  26 void init_xcb() {
  27         /* FIXME: xcb_connect leaks Memory */
  28         xcb_connection = xcb_connect(NULL, NULL);
  29         if (xcb_connection_has_error(xcb_connection)) {
  30                 printf("Cannot open display\n");
  31                 exit(EXIT_FAILURE);
  32         }
  33         printf("Connected to xcb\n");
  34
  35         /* We have to request the atoms we need */
  36         #define ATOM_DO(name) atom_cookies[name] = xcb_intern_atom(xcb_connection, 0, strlen(#name), #name);
  37         #include "xcb_atoms.def"
  38
  39         xcb_screens = xcb_setup_roots_iterator(xcb_get_setup(xcb_connection)).data;
  40         xcb_root = xcb_screens->root;
  41
  42         /* FIXME: Maybe we can push that further backwards */
  43         get_atoms();
  44 }
  45
  46 void clean_xcb() {
  47         xcb_disconnect(xcb_connection);
  48 }
  49
  50 void get_atoms() {
  51         xcb_intern_atom_reply_t* reply;
  52         #define ATOM_DO(name)   reply = xcb_intern_atom_reply(xcb_connection, atom_cookies[name], NULL); \
  53                                 atoms[name] = reply->atom; \
  54                                 free(reply);
  55
  56         #include "xcb_atoms.def"
  57         printf("Got Atoms\n");
  58 }
  59
  60 void destroy_windows() {
  61         i3_output *walk = outputs;
  62         while(walk != NULL) {
  63                 if (walk->bar == XCB_NONE) {
  64                         continue;
  65                 }
  66                 xcb_destroy_window(xcb_connection, walk->bar);
  67                 walk->bar = XCB_NONE;
  68         }
  69 }
  70
  71 void create_windows() {
  72         uint32_t mask;
  73         uint32_t values[2];
  74
  75         i3_output* walk = outputs;
  76         while (walk != NULL) {
  77                 if (!walk->active) {
  78                         walk = walk->next;
  79                         continue;
  80                 }
  81                 printf("Creating Window for output %s\n", walk->name);
  82
  83                 walk->bar = xcb_generate_id(xcb_connection);
  84                 mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK;
  85                 values[0] = xcb_screens->black_pixel;
  86                 values[1] = XCB_EVENT_MASK_EXPOSURE;
  87                 xcb_create_window(xcb_connection,
  88                                   xcb_screens->root_depth,
  89                                   walk->bar,
  90                                   xcb_root,
  91                                   walk->rect.x, walk->rect.y,
  92                                   walk->rect.w, 20,
  93                                   1,
  94                                   XCB_WINDOW_CLASS_INPUT_OUTPUT,
  95                                   xcb_screens->root_visual,
  96                                   mask,
  97                                   values);
  98
  99                 xcb_change_property(xcb_connection,
 100                                     XCB_PROP_MODE_REPLACE,
 101                                     walk->bar,
 102                                     atoms[_NET_WM_WINDOW_TYPE],
 103                                     atoms[ATOM],
 104                                     32,
 105                                     1,
 106                                     (unsigned char*) &atoms[_NET_WM_WINDOW_TYPE_DOCK]);
 107
 108                 walk->bargc = xcb_generate_id(xcb_connection);
 109                 xcb_create_gc(xcb_connection,
 110                               walk->bargc,
 111                               walk->bar,
 112                               0,
 113                               NULL);
 114
 115                 xcb_map_window(xcb_connection, walk->bar);
 116                 walk = walk->next;
 117         }
 118         xcb_flush(xcb_connection);
 119 }
 120
 121 void draw_buttons() {
 122         printf("Drawing Buttons...\n");
 123         i3_output *outputs_walk = outputs;
 124         int i = 0;
 125         xcb_font_t button_font = xcb_generate_id(xcb_connection);
 126         char *fontname = "-misc-fixed-medium-r-semicondensed--12-110-75-75-c-60-iso10646-1";
 127         xcb_open_font(xcb_connection,
 128                       button_font,
 129                       strlen(fontname),
 130                       fontname);
 131         xcb_change_gc(xcb_connection,
 132                       outputs_walk->bargc,
 133                       XCB_GC_FONT,
 134                       &button_font);
 135         while (outputs_walk != NULL) {
 136                 if (!outputs_walk->active) {
 137                         printf("Output %s inactive, skipping...\n", outputs_walk->name);
 138                         outputs_walk = outputs_walk->next;
 139                         continue;
 140                 }
 141                 if (outputs_walk->bar == XCB_NONE) {
 142                         create_windows();
 143                 }
 144                 uint32_t color = get_colorpixel("000000");
 145                 xcb_change_gc(xcb_connection,
 146                               outputs_walk->bargc,
 147                               XCB_GC_FOREGROUND,
 148                               &color);
 149                 xcb_rectangle_t rect = { 0, 0, outputs_walk->rect.w, 20 };
 150                 xcb_poly_fill_rectangle(xcb_connection,
 151                                         outputs_walk->bar,
 152                                         outputs_walk->bargc,
 153                                         1,
 154                                         &rect);
 155                 i3_ws *ws_walk = workspaces;
 156                 while (ws_walk != NULL) {
 157                         if (ws_walk->output != outputs_walk) {
 158                                 printf("WS %s on wrong output, skipping...\n", ws_walk->name);
 159                                 ws_walk = ws_walk->next;
 160                                 continue;
 161                         }
 162                         printf("Drawing Button for WS %s...\n", ws_walk->name);
 163                         uint32_t color = get_colorpixel("240000");
 164                         if (ws_walk->visible) {
 165                                 color = get_colorpixel("480000");
 166                         }
 167                         if (ws_walk->urgent) {
 168                                 color = get_colorpixel("002400");
 169                         }
 170                         xcb_change_gc(xcb_connection,
 171                                       outputs_walk->bargc,
 172                                       XCB_GC_FOREGROUND,
 173                                       &color);
 174                         xcb_change_gc(xcb_connection,
 175                                       outputs_walk->bargc,
 176                                       XCB_GC_BACKGROUND,
 177                                       &color);
 178                         xcb_rectangle_t rect = { i + 1, 1, 18, 18 };
 179                         xcb_poly_fill_rectangle(xcb_connection,
 180                                                 outputs_walk->bar,
 181                                                 outputs_walk->bargc,
 182                                                 1,
 183                                                 &rect);
 184                         color = get_colorpixel("FFFFFF");
 185                         xcb_change_gc(xcb_connection,
 186                                       outputs_walk->bargc,
 187                                       XCB_GC_FOREGROUND,
 188                                       &color);
 189                         xcb_image_text_8(xcb_connection,
 190                                          strlen(ws_walk->name),
 191                                          outputs_walk->bar,
 192                                          outputs_walk->bargc,
 193                                          i + 3, 14,
 194                                          ws_walk->name);
 195                         i += 20;
 196                         ws_walk = ws_walk->next;
 197                 }
 198                 outputs_walk = outputs_walk->next;
 199                 i = 0;
 200         }
 201         xcb_flush(xcb_connection);
 202 }