Dogcows Code - chaz/tint2/blob - src/clock/clock.c

   1 /**************************************************************************
   2 *
   3 * Tint2 : clock
   4 *
   5 * Copyright (C) 2008 thierry lorthiois (lorthiois@bbsoft.fr)
   6 *
   7 * This program is free software; you can redistribute it and/or
   8 * modify it under the terms of the GNU General Public License version 2
   9 * as published by the Free Software Foundation.
  10 *
  11 * This program is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 * You should have received a copy of the GNU General Public License
  16 * along with this program; if not, write to the Free Software
  17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18 **************************************************************************/
  19
  20 #include <string.h>
  21 #include <stdio.h>
  22 #include <cairo.h>
  23 #include <cairo-xlib.h>
  24 #include <pango/pangocairo.h>
  25 #include <unistd.h>
  26 #include <signal.h>
  27 #include <stdlib.h>
  28
  29 #include "window.h"
  30 #include "server.h"
  31 #include "area.h"
  32 #include "panel.h"
  33 #include "taskbar.h"
  34 #include "clock.h"
  35 #include "timer.h"
  36
  37
  38 char *time1_format;
  39 char *time1_timezone;
  40 char *time2_format;
  41 char *time2_timezone;
  42 char *time_tooltip_format;
  43 char *time_tooltip_timezone;
  44 char *clock_lclick_command;
  45 char *clock_rclick_command;
  46 struct timeval time_clock;
  47 PangoFontDescription *time1_font_desc;
  48 PangoFontDescription *time2_font_desc;
  49 static char buf_time[40];
  50 static char buf_date[40];
  51 static char buf_tooltip[40];
  52 int clock_enabled;
  53 static timeout* clock_timeout;
  54
  55
  56 void default_clock()
  57 {
  58         clock_enabled = 0;
  59         clock_timeout = 0;
  60         time1_format = 0;
  61         time1_timezone = 0;
  62         time2_format = 0;
  63         time2_timezone = 0;
  64         time_tooltip_format = 0;
  65         time_tooltip_timezone = 0;
  66         clock_lclick_command = 0;
  67         clock_rclick_command = 0;
  68         time1_font_desc = 0;
  69         time2_font_desc = 0;
  70 }
  71
  72 void cleanup_clock()
  73 {
  74 printf("*** cleanup_clock()\n");
  75         if (time1_font_desc) pango_font_description_free(time1_font_desc);
  76         if (time2_font_desc) pango_font_description_free(time2_font_desc);
  77         if (time1_format) g_free(time1_format);
  78         if (time2_format) g_free(time2_format);
  79         if (time_tooltip_format) g_free(time_tooltip_format);
  80         if (time1_timezone) g_free(time1_timezone);
  81         if (time2_timezone) g_free(time2_timezone);
  82         if (time_tooltip_timezone) g_free(time_tooltip_timezone);
  83         if (clock_lclick_command) g_free(clock_lclick_command);
  84         if (clock_rclick_command) g_free(clock_rclick_command);
  85 }
  86
  87
  88 void update_clocks_sec(void* arg)
  89 {
  90         gettimeofday(&time_clock, 0);
  91         int i;
  92         if (time1_format) {
  93                 for (i=0 ; i < nb_panel ; i++)
  94                         panel1[i].clock.area.resize = 1;
  95         }
  96         panel_refresh = 1;
  97 }
  98
  99 void update_clocks_min(void* arg)
 100 {
 101         // remember old_sec because after suspend/hibernate the clock should be updated directly, and not
 102         // on next minute change
 103         time_t old_sec = time_clock.tv_sec;
 104         gettimeofday(&time_clock, 0);
 105         if (time_clock.tv_sec % 60 == 0 || time_clock.tv_sec - old_sec > 60) {
 106                 int i;
 107                 if (time1_format) {
 108                         for (i=0 ; i < nb_panel ; i++)
 109                                 panel1[i].clock.area.resize = 1;
 110                 }
 111                 panel_refresh = 1;
 112         }
 113 }
 114
 115 struct tm* clock_gettime_for_tz(const char* timezone) {
 116         if (timezone) {
 117                 const char* old_tz = getenv("TZ");
 118                 setenv("TZ", timezone, 1);
 119                 struct tm* result = localtime(&time_clock.tv_sec);
 120                 if (old_tz) setenv("TZ", old_tz, 1);
 121                 else unsetenv("TZ");
 122                 return result;
 123         }
 124         else return localtime(&time_clock.tv_sec);
 125 }
 126
 127 const char* clock_get_tooltip(void* obj)
 128 {
 129         strftime(buf_tooltip, sizeof(buf_tooltip), time_tooltip_format, clock_gettime_for_tz(time_tooltip_timezone));
 130         return buf_tooltip;
 131 }
 132
 133
 134 void init_clock()
 135 {
 136         if(time1_format && clock_timeout==0) {
 137                 if (strchr(time1_format, 'S') || strchr(time1_format, 'T') || strchr(time1_format, 'r'))
 138                         clock_timeout = add_timeout(10, 1000, update_clocks_sec, 0);
 139                 else
 140                         clock_timeout = add_timeout(10, 1000, update_clocks_min, 0);
 141         }
 142 }
 143
 144
 145 void init_clock_panel(void *p)
 146 {
 147         Panel *panel =(Panel*)p;
 148         Clock *clock = &panel->clock;
 149         int time_height, time_height_ink, date_height, date_height_ink;
 150
 151         clock->area.parent = p;
 152         clock->area.panel = p;
 153         clock->area._draw_foreground = draw_clock;
 154         clock->area._resize = resize_clock;
 155         clock->area.resize = 1;
 156         clock->area.redraw = 1;
 157         clock->area.on_screen = 1;
 158
 159         strftime(buf_time, sizeof(buf_time), time1_format, clock_gettime_for_tz(time1_timezone));
 160         get_text_size(time1_font_desc, &time_height_ink, &time_height, panel->area.height, buf_time, strlen(buf_time));
 161         if (time2_format) {
 162                 strftime(buf_date, sizeof(buf_date), time2_format, clock_gettime_for_tz(time2_timezone));
 163                 get_text_size(time2_font_desc, &date_height_ink, &date_height, panel->area.height, buf_date, strlen(buf_date));
 164         }
 165
 166         if (panel_horizontal) {
 167                 // panel horizonal => fixed height and posy
 168                 clock->area.posy = panel->area.bg->border.width + panel->area.paddingy;
 169                 clock->area.height = panel->area.height - (2 * clock->area.posy);
 170         }
 171         else {
 172                 // panel vertical => fixed width, height, posy and posx
 173                 clock->area.posy = panel->area.bg->border.width + panel->area.paddingxlr;
 174                 clock->area.height = (2 * clock->area.paddingxlr) + (time_height + date_height);
 175                 clock->area.posx = panel->area.bg->border.width + panel->area.paddingy;
 176                 clock->area.width = panel->area.width - (2 * panel->area.bg->border.width) - (2 * panel->area.paddingy);
 177         }
 178
 179         clock->time1_posy = (clock->area.height - time_height) / 2;
 180         if (time2_format) {
 181                 strftime(buf_date, sizeof(buf_date), time2_format, clock_gettime_for_tz(time2_timezone));
 182                 get_text_size(time2_font_desc, &date_height_ink, &date_height, panel->area.height, buf_date, strlen(buf_date));
 183
 184                 clock->time1_posy -= ((date_height_ink + 2) / 2);
 185                 clock->time2_posy = clock->time1_posy + time_height + 2 - (time_height - time_height_ink)/2 - (date_height - date_height_ink)/2;
 186         }
 187
 188         if (time_tooltip_format) {
 189                 clock->area._get_tooltip_text = clock_get_tooltip;
 190                 strftime(buf_tooltip, sizeof(buf_tooltip), time_tooltip_format, clock_gettime_for_tz(time_tooltip_timezone));
 191         }
 192 }
 193
 194
 195 void draw_clock (void *obj, cairo_t *c)
 196 {
 197         Clock *clock = obj;
 198         PangoLayout *layout;
 199
 200         layout = pango_cairo_create_layout (c);
 201
 202         // draw layout
 203         pango_layout_set_font_description (layout, time1_font_desc);
 204         pango_layout_set_width (layout, clock->area.width * PANGO_SCALE);
 205         pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
 206         pango_layout_set_text (layout, buf_time, strlen(buf_time));
 207
 208         cairo_set_source_rgba (c, clock->font.color[0], clock->font.color[1], clock->font.color[2], clock->font.alpha);
 209
 210         pango_cairo_update_layout (c, layout);
 211         cairo_move_to (c, 0, clock->time1_posy);
 212         pango_cairo_show_layout (c, layout);
 213
 214         if (time2_format) {
 215                 pango_layout_set_font_description (layout, time2_font_desc);
 216                 pango_layout_set_indent(layout, 0);
 217                 pango_layout_set_text (layout, buf_date, strlen(buf_date));
 218                 pango_layout_set_width (layout, clock->area.width * PANGO_SCALE);
 219
 220                 pango_cairo_update_layout (c, layout);
 221                 cairo_move_to (c, 0, clock->time2_posy);
 222                 pango_cairo_show_layout (c, layout);
 223         }
 224
 225         g_object_unref (layout);
 226 }
 227
 228
 229 void resize_clock (void *obj)
 230 {
 231         Clock *clock = obj;
 232         PangoLayout *layout;
 233         int time_width, date_width, new_width;
 234
 235         clock->area.redraw = 1;
 236         time_width = date_width = 0;
 237         strftime(buf_time, sizeof(buf_time), time1_format, clock_gettime_for_tz(time1_timezone));
 238         if (time2_format)
 239                 strftime(buf_date, sizeof(buf_date), time2_format, clock_gettime_for_tz(time2_timezone));
 240
 241         // vertical panel doen't adjust width
 242         if (!panel_horizontal) return;
 243
 244         //printf("  resize_clock\n");
 245         cairo_surface_t *cs;
 246         cairo_t *c;
 247         Pixmap pmap;
 248         pmap = XCreatePixmap (server.dsp, server.root_win, clock->area.width, clock->area.height, server.depth);
 249
 250         cs = cairo_xlib_surface_create (server.dsp, pmap, server.visual, clock->area.width, clock->area.height);
 251         c = cairo_create (cs);
 252         layout = pango_cairo_create_layout (c);
 253
 254         // check width
 255         pango_layout_set_font_description (layout, time1_font_desc);
 256         pango_layout_set_indent(layout, 0);
 257         pango_layout_set_text (layout, buf_time, strlen(buf_time));
 258         pango_layout_get_pixel_size (layout, &time_width, NULL);
 259         if (time2_format) {
 260                 pango_layout_set_font_description (layout, time2_font_desc);
 261                 pango_layout_set_indent(layout, 0);
 262                 pango_layout_set_text (layout, buf_date, strlen(buf_date));
 263                 pango_layout_get_pixel_size (layout, &date_width, NULL);
 264         }
 265
 266         if (time_width > date_width) new_width = time_width;
 267         else new_width = date_width;
 268         new_width += (2*clock->area.paddingxlr) + (2*clock->area.bg->border.width);
 269
 270         Panel *panel = ((Area*)obj)->panel;
 271         if (new_width > clock->area.width || new_width < (clock->area.width-6)) {
 272                 // resize clock
 273                 // we try to limit the number of resize
 274                 // printf("clock_width %d, new_width %d\n", clock->area.width, new_width);
 275                 clock->area.width = new_width + 1;
 276
 277                 // resize other objects on panel
 278                 panel->area.resize = 1;
 279 #ifdef ENABLE_BATTERY
 280                 panel->battery.area.resize = 1;
 281 #endif
 282                 systray.area.resize = 1;
 283                 panel_refresh = 1;
 284         }
 285         clock->area.posx = panel->area.width - clock->area.width - panel->area.paddingxlr - panel->area.bg->border.width;
 286
 287
 288         g_object_unref (layout);
 289         cairo_destroy (c);
 290         cairo_surface_destroy (cs);
 291         XFreePixmap (server.dsp, pmap);
 292 }
 293
 294
 295 void clock_action(int button)
 296 {
 297         char *command = 0;
 298         switch (button) {
 299                 case 1:
 300                 command = clock_lclick_command;
 301                 break;
 302                 case 3:
 303                 command = clock_rclick_command;
 304                 break;
 305         }
 306         if (command) {
 307                 pid_t pid;
 308                 pid = fork();
 309                 if (pid == 0) {
 310                         // change for the fork the signal mask
 311 //                      sigset_t sigset;
 312 //                      sigprocmask(SIG_SETMASK, &sigset, 0);
 313 //                      sigprocmask(SIG_UNBLOCK, &sigset, 0);
 314                         execl("/bin/sh", "/bin/sh", "-c", command, NULL);
 315                         _exit(0);
 316                 }
 317         }
 318 }
 319