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 <stdlib.h>
  26
  27 #include "window.h"
  28 #include "server.h"
  29 #include "panel.h"
  30 #include "clock.h"
  31 #include "timer.h"
  32 #include "common.h"
  33
  34
  35 char *time1_format;
  36 char *time1_timezone;
  37 char *time2_format;
  38 char *time2_timezone;
  39 char *time_tooltip_format;
  40 char *time_tooltip_timezone;
  41 char *clock_lclick_command;
  42 char *clock_rclick_command;
  43 struct timeval time_clock;
  44 PangoFontDescription *time1_font_desc;
  45 PangoFontDescription *time2_font_desc;
  46 static char buf_time[40];
  47 static char buf_date[40];
  48 static char buf_tooltip[40];
  49 int clock_enabled;
  50 static timeout* clock_timeout;
  51
  52
  53 void default_clock()
  54 {
  55         clock_enabled = 0;
  56         clock_timeout = 0;
  57         time1_format = 0;
  58         time1_timezone = 0;
  59         time2_format = 0;
  60         time2_timezone = 0;
  61         time_tooltip_format = 0;
  62         time_tooltip_timezone = 0;
  63         clock_lclick_command = 0;
  64         clock_rclick_command = 0;
  65         time1_font_desc = 0;
  66         time2_font_desc = 0;
  67 }
  68
  69 void cleanup_clock()
  70 {
  71         if (time1_font_desc) pango_font_description_free(time1_font_desc);
  72         if (time2_font_desc) pango_font_description_free(time2_font_desc);
  73         if (time1_format) g_free(time1_format);
  74         if (time2_format) g_free(time2_format);
  75         if (time_tooltip_format) g_free(time_tooltip_format);
  76         if (time1_timezone) g_free(time1_timezone);
  77         if (time2_timezone) g_free(time2_timezone);
  78         if (time_tooltip_timezone) g_free(time_tooltip_timezone);
  79         if (clock_lclick_command) g_free(clock_lclick_command);
  80         if (clock_rclick_command) g_free(clock_rclick_command);
  81 }
  82
  83
  84 void update_clocks_sec(void* arg)
  85 {
  86         gettimeofday(&time_clock, 0);
  87         int i;
  88         if (time1_format) {
  89                 for (i=0 ; i < nb_panel ; i++)
  90                         panel1[i].clock.area.resize = 1;
  91         }
  92         panel_refresh = 1;
  93 }
  94
  95 void update_clocks_min(void* arg)
  96 {
  97         // remember old_sec because after suspend/hibernate the clock should be updated directly, and not
  98         // on next minute change
  99         time_t old_sec = time_clock.tv_sec;
 100         gettimeofday(&time_clock, 0);
 101         if (time_clock.tv_sec % 60 == 0 || time_clock.tv_sec - old_sec > 60) {
 102                 int i;
 103                 if (time1_format) {
 104                         for (i=0 ; i < nb_panel ; i++)
 105                                 panel1[i].clock.area.resize = 1;
 106                 }
 107                 panel_refresh = 1;
 108         }
 109 }
 110
 111 struct tm* clock_gettime_for_tz(const char* timezone) {
 112         if (timezone) {
 113                 const char* old_tz = getenv("TZ");
 114                 setenv("TZ", timezone, 1);
 115                 struct tm* result = localtime(&time_clock.tv_sec);
 116                 if (old_tz) setenv("TZ", old_tz, 1);
 117                 else unsetenv("TZ");
 118                 return result;
 119         }
 120         else return localtime(&time_clock.tv_sec);
 121 }
 122
 123 const char* clock_get_tooltip(void* obj)
 124 {
 125         strftime(buf_tooltip, sizeof(buf_tooltip), time_tooltip_format, clock_gettime_for_tz(time_tooltip_timezone));
 126         return buf_tooltip;
 127 }
 128
 129
 130 void init_clock()
 131 {
 132         if(time1_format && clock_timeout==0) {
 133                 if (strchr(time1_format, 'S') || strchr(time1_format, 'T') || strchr(time1_format, 'r'))
 134                         clock_timeout = add_timeout(10, 1000, update_clocks_sec, 0);
 135                 else
 136                         clock_timeout = add_timeout(10, 1000, update_clocks_min, 0);
 137         }
 138 }
 139
 140
 141 void init_clock_panel(void *p)
 142 {
 143         Panel *panel =(Panel*)p;
 144         Clock *clock = &panel->clock;
 145
 146         clock->area.parent = p;
 147         clock->area.panel = p;
 148         clock->area._draw_foreground = draw_clock;
 149         clock->area.size_mode = SIZE_BY_CONTENT;
 150         clock->area._resize = resize_clock;
 151         // check consistency
 152         if (time1_format == 0)
 153                 return;
 154
 155         clock->area.resize = 1;
 156         clock->area.on_screen = 1;
 157
 158         if (time_tooltip_format) {
 159                 clock->area._get_tooltip_text = clock_get_tooltip;
 160                 strftime(buf_tooltip, sizeof(buf_tooltip), time_tooltip_format, clock_gettime_for_tz(time_tooltip_timezone));
 161         }
 162 }
 163
 164
 165 void draw_clock (void *obj, cairo_t *c)
 166 {
 167         Clock *clock = obj;
 168         PangoLayout *layout;
 169
 170         layout = pango_cairo_create_layout (c);
 171
 172         // draw layout
 173         pango_layout_set_font_description (layout, time1_font_desc);
 174         pango_layout_set_width (layout, clock->area.width * PANGO_SCALE);
 175         pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
 176         pango_layout_set_text (layout, buf_time, strlen(buf_time));
 177
 178         cairo_set_source_rgba (c, clock->font.color[0], clock->font.color[1], clock->font.color[2], clock->font.alpha);
 179
 180         pango_cairo_update_layout (c, layout);
 181         cairo_move_to (c, 0, clock->time1_posy);
 182         pango_cairo_show_layout (c, layout);
 183
 184         if (time2_format) {
 185                 pango_layout_set_font_description (layout, time2_font_desc);
 186                 pango_layout_set_indent(layout, 0);
 187                 pango_layout_set_text (layout, buf_date, strlen(buf_date));
 188                 pango_layout_set_width (layout, clock->area.width * PANGO_SCALE);
 189
 190                 pango_cairo_update_layout (c, layout);
 191                 cairo_move_to (c, 0, clock->time2_posy);
 192                 pango_cairo_show_layout (c, layout);
 193         }
 194
 195         g_object_unref (layout);
 196 }
 197
 198
 199 int resize_clock (void *obj)
 200 {
 201         Clock *clock = obj;
 202         Panel *panel = clock->area.panel;
 203         int time_height_ink, time_height, time_width, date_height_ink, date_height, date_width, ret = 0;
 204
 205         clock->area.redraw = 1;
 206
 207         date_height = date_width = 0;
 208         strftime(buf_time, sizeof(buf_time), time1_format, clock_gettime_for_tz(time1_timezone));
 209         get_text_size2(time1_font_desc, &time_height_ink, &time_height, &time_width, panel->area.height, panel->area.width, buf_time, strlen(buf_time));
 210         if (time2_format) {
 211                 strftime(buf_date, sizeof(buf_date), time2_format, clock_gettime_for_tz(time2_timezone));
 212                 get_text_size2(time2_font_desc, &date_height_ink, &date_height, &date_width, panel->area.height, panel->area.width, buf_date, strlen(buf_date));
 213         }
 214
 215         if (panel_horizontal) {
 216                 int new_size = (time_width > date_width) ? time_width : date_width;
 217                 new_size += (2*clock->area.paddingxlr) + (2*clock->area.bg->border.width);
 218                 if (new_size > clock->area.width || new_size < (clock->area.width-6)) {
 219                         // we try to limit the number of resize
 220                         clock->area.width = new_size + 1;
 221                         clock->time1_posy = (clock->area.height - time_height) / 2;
 222                         if (time2_format) {
 223                                 clock->time1_posy -= ((date_height_ink + 2) / 2);
 224                                 clock->time2_posy = clock->time1_posy + time_height + 2 - (time_height - time_height_ink)/2 - (date_height - date_height_ink)/2;
 225                         }
 226                         ret = 1;
 227                 }
 228         }
 229         else {
 230                 int new_size = time_height + date_height + (2 * (clock->area.paddingxlr + clock->area.bg->border.width));
 231                 if (new_size != clock->area.height) {
 232                         // we try to limit the number of resize
 233                         clock->area.height =  new_size;
 234                         clock->time1_posy = (clock->area.height - time_height) / 2;
 235                         if (time2_format) {
 236                                 clock->time1_posy -= ((date_height_ink + 2) / 2);
 237                                 clock->time2_posy = clock->time1_posy + time_height + 2 - (time_height - time_height_ink)/2 - (date_height - date_height_ink)/2;
 238                         }
 239                         ret = 1;
 240                 }
 241         }
 242
 243         return ret;
 244 }
 245
 246
 247 void clock_action(int button)
 248 {
 249         char *command = 0;
 250         switch (button) {
 251                 case 1:
 252                 command = clock_lclick_command;
 253                 break;
 254                 case 3:
 255                 command = clock_rclick_command;
 256                 break;
 257         }
 258         tint_exec(command);
 259 }
 260