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

   1 /**************************************************************************
   2 *
   3 * Tint2 : clock
   4 *
   5 * Copyright (C) 2008 thierry lorthiois (lorthiois@bbsoft.fr) from Omega distribution
   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[256];
  47 static char buf_date[256];
  48 static char buf_tooltip[512];
  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         if (clock_timeout) stop_timeout(clock_timeout);
  82 }
  83
  84
  85 void update_clocks_sec(void* arg)
  86 {
  87         gettimeofday(&time_clock, 0);
  88         int i;
  89         if (time1_format) {
  90                 for (i=0 ; i < nb_panel ; i++)
  91                         panel1[i].clock.area.resize = 1;
  92         }
  93         panel_refresh = 1;
  94 }
  95
  96 void update_clocks_min(void* arg)
  97 {
  98         // remember old_sec because after suspend/hibernate the clock should be updated directly, and not
  99         // on next minute change
 100         time_t old_sec = time_clock.tv_sec;
 101         gettimeofday(&time_clock, 0);
 102         if (time_clock.tv_sec % 60 == 0 || time_clock.tv_sec - old_sec > 60) {
 103                 int i;
 104                 if (time1_format) {
 105                         for (i=0 ; i < nb_panel ; i++)
 106                                 panel1[i].clock.area.resize = 1;
 107                 }
 108                 panel_refresh = 1;
 109         }
 110 }
 111
 112 struct tm* clock_gettime_for_tz(const char* timezone) {
 113         if (timezone) {
 114                 const char* old_tz = getenv("TZ");
 115                 setenv("TZ", timezone, 1);
 116                 struct tm* result = localtime(&time_clock.tv_sec);
 117                 if (old_tz) setenv("TZ", old_tz, 1);
 118                 else unsetenv("TZ");
 119                 return result;
 120         }
 121         else return localtime(&time_clock.tv_sec);
 122 }
 123
 124 const char* clock_get_tooltip(void* obj)
 125 {
 126         strftime(buf_tooltip, sizeof(buf_tooltip), time_tooltip_format, clock_gettime_for_tz(time_tooltip_timezone));
 127         return buf_tooltip;
 128 }
 129
 130
 131 void init_clock()
 132 {
 133         if(time1_format && clock_timeout==0) {
 134                 if (strchr(time1_format, 'S') || strchr(time1_format, 'T') || strchr(time1_format, 'r'))
 135                         clock_timeout = add_timeout(10, 1000, update_clocks_sec, 0);
 136                 else
 137                         clock_timeout = add_timeout(10, 1000, update_clocks_min, 0);
 138         }
 139 }
 140
 141
 142 void init_clock_panel(void *p)
 143 {
 144         Panel *panel =(Panel*)p;
 145         Clock *clock = &panel->clock;
 146
 147         clock->area.parent = p;
 148         clock->area.panel = p;
 149         clock->area._draw_foreground = draw_clock;
 150         clock->area.size_mode = SIZE_BY_CONTENT;
 151         clock->area._resize = resize_clock;
 152         // check consistency
 153         if (time1_format == 0)
 154                 return;
 155
 156         clock->area.resize = 1;
 157         clock->area.on_screen = 1;
 158
 159         if (time_tooltip_format) {
 160                 clock->area._get_tooltip_text = clock_get_tooltip;
 161                 strftime(buf_tooltip, sizeof(buf_tooltip), time_tooltip_format, clock_gettime_for_tz(time_tooltip_timezone));
 162         }
 163 }
 164
 165
 166 void draw_clock (void *obj, cairo_t *c)
 167 {
 168         Clock *clock = obj;
 169         PangoLayout *layout;
 170
 171         layout = pango_cairo_create_layout (c);
 172
 173         // draw layout
 174         pango_layout_set_font_description (layout, time1_font_desc);
 175         pango_layout_set_width (layout, clock->area.width * PANGO_SCALE);
 176         pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
 177         pango_layout_set_text (layout, buf_time, strlen(buf_time));
 178
 179         cairo_set_source_rgba (c, clock->font.color[0], clock->font.color[1], clock->font.color[2], clock->font.alpha);
 180
 181         pango_cairo_update_layout (c, layout);
 182         cairo_move_to (c, 0, clock->time1_posy);
 183         pango_cairo_show_layout (c, layout);
 184
 185         if (time2_format) {
 186                 pango_layout_set_font_description (layout, time2_font_desc);
 187                 pango_layout_set_indent(layout, 0);
 188                 pango_layout_set_text (layout, buf_date, strlen(buf_date));
 189                 pango_layout_set_width (layout, clock->area.width * PANGO_SCALE);
 190
 191                 pango_cairo_update_layout (c, layout);
 192                 cairo_move_to (c, 0, clock->time2_posy);
 193                 pango_cairo_show_layout (c, layout);
 194         }
 195
 196         g_object_unref (layout);
 197 }
 198
 199
 200 int resize_clock (void *obj)
 201 {
 202         Clock *clock = obj;
 203         Panel *panel = clock->area.panel;
 204         int time_height_ink, time_height, time_width, date_height_ink, date_height, date_width, ret = 0;
 205
 206         clock->area.redraw = 1;
 207
 208         date_height = date_width = 0;
 209         strftime(buf_time, sizeof(buf_time), time1_format, clock_gettime_for_tz(time1_timezone));
 210         get_text_size2(time1_font_desc, &time_height_ink, &time_height, &time_width, panel->area.height, panel->area.width, buf_time, strlen(buf_time));
 211         if (time2_format) {
 212                 strftime(buf_date, sizeof(buf_date), time2_format, clock_gettime_for_tz(time2_timezone));
 213                 get_text_size2(time2_font_desc, &date_height_ink, &date_height, &date_width, panel->area.height, panel->area.width, buf_date, strlen(buf_date));
 214         }
 215
 216         if (panel_horizontal) {
 217                 int new_size = (time_width > date_width) ? time_width : date_width;
 218                 new_size += (2*clock->area.paddingxlr) + (2*clock->area.bg->border.width);
 219                 if (new_size > clock->area.width || new_size < (clock->area.width-6)) {
 220                         // we try to limit the number of resize
 221                         clock->area.width = new_size + 1;
 222                         clock->time1_posy = (clock->area.height - time_height) / 2;
 223                         if (time2_format) {
 224                                 clock->time1_posy -= (date_height)/2;
 225                                 clock->time2_posy = clock->time1_posy + time_height;
 226                         }
 227                         ret = 1;
 228                 }
 229         }
 230         else {
 231                 int new_size = time_height + date_height + (2 * (clock->area.paddingxlr + clock->area.bg->border.width));
 232                 if (new_size != clock->area.height) {
 233                         // we try to limit the number of resize
 234                         clock->area.height =  new_size;
 235                         clock->time1_posy = (clock->area.height - time_height) / 2;
 236                         if (time2_format) {
 237                                 clock->time1_posy -= (date_height)/2;
 238                                 clock->time2_posy = clock->time1_posy + time_height;
 239                         }
 240                         ret = 1;
 241                 }
 242         }
 243
 244         return ret;
 245 }
 246
 247
 248 void clock_action(int button)
 249 {
 250         char *command = 0;
 251         switch (button) {
 252                 case 1:
 253                 command = clock_lclick_command;
 254                 break;
 255                 case 3:
 256                 command = clock_rclick_command;
 257                 break;
 258         }
 259         tint_exec(command);
 260 }
 261