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
  27 #include "window.h"
  28 #include "server.h"
  29 #include "area.h"
  30 #include "panel.h"
  31 #include "taskbar.h"
  32 #include "clock.h"
  33
  34
  35 char *time1_format=0;
  36 char *time2_format=0;
  37 char *clock_lclick_command=0;
  38 char *clock_rclick_command=0;
  39 struct timeval time_clock;
  40 int  time_precision;
  41 PangoFontDescription *time1_font_desc=0;
  42 PangoFontDescription *time2_font_desc=0;
  43 static char buf_time[40];
  44 static char buf_date[40];
  45 int clock_enabled;
  46
  47
  48 void init_precision()
  49 {
  50         if (!time1_format) time_precision = 60;
  51         else if (strchr(time1_format, 'S')) time_precision = 1;
  52         else if (strchr(time1_format, 'T')) time_precision = 1;
  53         else if (strchr(time1_format, 'r')) time_precision = 1;
  54         else time_precision = 60;
  55 }
  56
  57
  58 void init_clock()
  59 {
  60         init_precision();
  61
  62         // update clock to force update (-time_precision)
  63         struct timeval stv;
  64         gettimeofday(&stv, 0);
  65         time_clock.tv_sec = stv.tv_sec - time_precision;
  66         time_clock.tv_sec -= time_clock.tv_sec % time_precision;
  67 }
  68
  69
  70 void init_clock_panel(void *p)
  71 {
  72         Panel *panel =(Panel*)p;
  73         Clock *clock = &panel->clock;
  74         int time_height, time_height_ink, date_height, date_height_ink;
  75
  76         clock->area.parent = p;
  77         clock->area.panel = p;
  78         clock->area._draw_foreground = draw_clock;
  79         clock->area._resize = resize_clock;
  80         clock->area.resize = 1;
  81         clock->area.redraw = 1;
  82         clock->area.on_screen = 1;
  83
  84         strftime(buf_time, sizeof(buf_time), time1_format, localtime(&time_clock.tv_sec));
  85         get_text_size(time1_font_desc, &time_height_ink, &time_height, panel->area.height, buf_time, strlen(buf_time));
  86         if (time2_format) {
  87                 strftime(buf_date, sizeof(buf_date), time2_format, localtime(&time_clock.tv_sec));
  88                 get_text_size(time2_font_desc, &date_height_ink, &date_height, panel->area.height, buf_date, strlen(buf_date));
  89         }
  90
  91         if (panel_horizontal) {
  92                 // panel horizonal => fixed height and posy
  93                 clock->area.posy = panel->area.pix.border.width + panel->area.paddingy;
  94                 clock->area.height = panel->area.height - (2 * clock->area.posy);
  95         }
  96         else {
  97                 // panel vertical => fixed width, height, posy and posx
  98                 clock->area.posy = panel->area.pix.border.width + panel->area.paddingxlr;
  99                 clock->area.height = (2 * clock->area.paddingxlr) + (time_height + date_height);
 100                 clock->area.posx = panel->area.pix.border.width + panel->area.paddingy;
 101                 clock->area.width = panel->area.width - (2 * panel->area.pix.border.width) - (2 * panel->area.paddingy);
 102         }
 103
 104         clock->time1_posy = (clock->area.height - time_height) / 2;
 105         if (time2_format) {
 106                 strftime(buf_date, sizeof(buf_date), time2_format, localtime(&time_clock.tv_sec));
 107                 get_text_size(time2_font_desc, &date_height_ink, &date_height, panel->area.height, buf_date, strlen(buf_date));
 108
 109                 clock->time1_posy -= ((date_height_ink + 2) / 2);
 110                 clock->time2_posy = clock->time1_posy + time_height + 2 - (time_height - time_height_ink)/2 - (date_height - date_height_ink)/2;
 111         }
 112 }
 113
 114
 115 void cleanup_clock()
 116 {
 117         clock_enabled = 0;
 118         if (time1_font_desc)
 119                 pango_font_description_free(time1_font_desc);
 120         if (time2_font_desc)
 121                 pango_font_description_free(time2_font_desc);
 122         if (time1_format)
 123                 g_free(time1_format);
 124         if (time2_format)
 125                 g_free(time2_format);
 126         if (clock_lclick_command)
 127                 g_free(clock_lclick_command);
 128         if (clock_rclick_command)
 129                 g_free(clock_rclick_command);
 130         time1_font_desc = time2_font_desc = 0;
 131         time1_format = time2_format = 0;
 132         clock_lclick_command = clock_rclick_command = 0;
 133 }
 134
 135
 136 void draw_clock (void *obj, cairo_t *c, int active)
 137 {
 138         Clock *clock = obj;
 139         PangoLayout *layout;
 140
 141         layout = pango_cairo_create_layout (c);
 142
 143         // draw layout
 144         pango_layout_set_font_description (layout, time1_font_desc);
 145         pango_layout_set_width (layout, clock->area.width * PANGO_SCALE);
 146         pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
 147         pango_layout_set_text (layout, buf_time, strlen(buf_time));
 148
 149         cairo_set_source_rgba (c, clock->font.color[0], clock->font.color[1], clock->font.color[2], clock->font.alpha);
 150
 151         pango_cairo_update_layout (c, layout);
 152         cairo_move_to (c, 0, clock->time1_posy);
 153         pango_cairo_show_layout (c, layout);
 154
 155         if (time2_format) {
 156                 pango_layout_set_font_description (layout, time2_font_desc);
 157                 pango_layout_set_indent(layout, 0);
 158                 pango_layout_set_text (layout, buf_date, strlen(buf_date));
 159                 pango_layout_set_width (layout, clock->area.width * PANGO_SCALE);
 160
 161                 pango_cairo_update_layout (c, layout);
 162                 cairo_move_to (c, 0, clock->time2_posy);
 163                 pango_cairo_show_layout (c, layout);
 164         }
 165
 166         g_object_unref (layout);
 167 }
 168
 169
 170 void resize_clock (void *obj)
 171 {
 172         Clock *clock = obj;
 173         PangoLayout *layout;
 174         int time_width, date_width, new_width;
 175
 176         clock->area.redraw = 1;
 177         time_width = date_width = 0;
 178         strftime(buf_time, sizeof(buf_time), time1_format, localtime(&time_clock.tv_sec));
 179         if (time2_format)
 180                 strftime(buf_date, sizeof(buf_date), time2_format, localtime(&time_clock.tv_sec));
 181
 182         // vertical panel doen't adjust width
 183         if (!panel_horizontal) return;
 184
 185         //printf("  resize_clock\n");
 186         cairo_surface_t *cs;
 187         cairo_t *c;
 188         Pixmap pmap;
 189         pmap = XCreatePixmap (server.dsp, server.root_win, clock->area.width, clock->area.height, server.depth);
 190
 191         cs = cairo_xlib_surface_create (server.dsp, pmap, server.visual, clock->area.width, clock->area.height);
 192         c = cairo_create (cs);
 193         layout = pango_cairo_create_layout (c);
 194
 195         // check width
 196         pango_layout_set_font_description (layout, time1_font_desc);
 197         pango_layout_set_indent(layout, 0);
 198         pango_layout_set_text (layout, buf_time, strlen(buf_time));
 199         pango_layout_get_pixel_size (layout, &time_width, NULL);
 200         if (time2_format) {
 201                 pango_layout_set_font_description (layout, time2_font_desc);
 202                 pango_layout_set_indent(layout, 0);
 203                 pango_layout_set_text (layout, buf_date, strlen(buf_date));
 204                 pango_layout_get_pixel_size (layout, &date_width, NULL);
 205         }
 206
 207         if (time_width > date_width) new_width = time_width;
 208         else new_width = date_width;
 209         new_width += (2*clock->area.paddingxlr) + (2*clock->area.pix.border.width);
 210
 211         Panel *panel = ((Area*)obj)->panel;
 212         clock->area.posx = panel->area.width - clock->area.width - panel->area.paddingxlr - panel->area.pix.border.width;
 213
 214         if (new_width > clock->area.width || new_width < (clock->area.width-6)) {
 215                 // resize clock
 216                 // we try to limit the number of resize
 217                 // printf("clock_width %d, new_width %d\n", clock->area.width, new_width);
 218                 clock->area.width = new_width + 1;
 219
 220                 // resize other objects on panel
 221                 panel->area.resize = 1;
 222 #ifdef ENABLE_BATTERY
 223                 panel->battery.area.resize = 1;
 224 #endif
 225                 systray.area.resize = 1;
 226                 panel_refresh = 1;
 227         }
 228
 229         g_object_unref (layout);
 230         cairo_destroy (c);
 231         cairo_surface_destroy (cs);
 232         XFreePixmap (server.dsp, pmap);
 233 }
 234
 235
 236 void clock_action(int button)
 237 {
 238         char *command = 0;
 239         switch (button) {
 240                 case 1:
 241                 command = clock_lclick_command;
 242                 break;
 243                 case 3:
 244                 command = clock_rclick_command;
 245                 break;
 246         }
 247         if (command) {
 248                 pid_t pid;
 249                 pid = fork();
 250                 if (pid == 0) {
 251                         execl("/bin/sh", "/bin/sh", "-c", command, NULL);
 252                         _exit(0);
 253                 }
 254         }
 255 }
 256