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 "taskbar.h"
  30 #include "panel.h"
  31 #include "area.h"
  32 #include "clock.h"
  33
  34
  35 char *time1_format;
  36 char *time2_format;
  37 char *clock_lclick_command;
  38 char *clock_rclick_command;
  39 struct timeval time_clock;
  40 int  time_precision;
  41 PangoFontDescription *time1_font_desc;
  42 PangoFontDescription *time2_font_desc;
  43 static char buf_time[40];
  44 static char buf_date[40];
  45
  46
  47 void init_precision()
  48 {
  49         if (!time1_format) time_precision = 60;
  50         else if (strchr(time1_format, 'S')) time_precision = 1;
  51         else if (strchr(time1_format, 'T')) time_precision = 1;
  52         else if (strchr(time1_format, 'r')) time_precision = 1;
  53         else time_precision = 60;
  54 }
  55
  56
  57 void init_clock()
  58 {
  59    Panel *panel;
  60    Clock *clock;
  61    int i, time_height, time_height_ink, date_height, date_height_ink;
  62
  63         init_precision();
  64         // update clock to force update (-time_precision)
  65         struct timeval stv;
  66         gettimeofday(&stv, 0);
  67         time_clock.tv_sec = stv.tv_sec - time_precision;
  68         time_clock.tv_sec -= time_clock.tv_sec % time_precision;
  69
  70         for (i=0 ; i < nb_panel ; i++) {
  71            panel = &panel1[i];
  72            clock = &panel->clock;
  73
  74                 if (!clock->area.on_screen) continue;
  75
  76                 clock->area.parent = panel;
  77                 clock->area.panel = panel;
  78                 clock->area._draw_foreground = draw_clock;
  79                 clock->area._resize = resize_clock;
  80                 clock->area.resize = 1;
  81                 clock->area.redraw = 1;
  82
  83                 strftime(buf_time, sizeof(buf_time), time1_format, localtime(&time_clock.tv_sec));
  84                 get_text_size(time1_font_desc, &time_height_ink, &time_height, panel->area.height, buf_time, strlen(buf_time));
  85                 if (time2_format) {
  86                         strftime(buf_date, sizeof(buf_date), time2_format, localtime(&time_clock.tv_sec));
  87                         get_text_size(time2_font_desc, &date_height_ink, &date_height, panel->area.height, buf_date, strlen(buf_date));
  88                 }
  89
  90                 if (panel_horizontal) {
  91                         // panel horizonal => fixed height and posy
  92                         clock->area.posy = panel->area.pix.border.width + panel->area.paddingy;
  93                         clock->area.height = panel->area.height - (2 * clock->area.posy);
  94                 }
  95                 else {
  96                         // panel vertical => fixed width, height, posy and posx
  97                         clock->area.posy = panel->area.pix.border.width + panel->area.paddingxlr;
  98                         clock->area.height = (2 * clock->area.paddingxlr) + (time_height + date_height);
  99                         clock->area.posx = panel->area.pix.border.width + panel->area.paddingy;
 100                         clock->area.width = panel->area.width - (2 * panel->area.pix.border.width) - (2 * panel->area.paddingy);
 101                 }
 102
 103                 clock->time1_posy = (clock->area.height - time_height) / 2;
 104                 if (time2_format) {
 105                         strftime(buf_date, sizeof(buf_date), time2_format, localtime(&time_clock.tv_sec));
 106                         get_text_size(time2_font_desc, &date_height_ink, &date_height, panel->area.height, buf_date, strlen(buf_date));
 107
 108                         clock->time1_posy -= ((date_height_ink + 2) / 2);
 109                         clock->time2_posy = clock->time1_posy + time_height + 2 - (time_height - time_height_ink)/2 - (date_height - date_height_ink)/2;
 110                 }
 111         }
 112 }
 113
 114
 115 void draw_clock (void *obj, cairo_t *c, int active)
 116 {
 117    Clock *clock = obj;
 118    PangoLayout *layout;
 119
 120    layout = pango_cairo_create_layout (c);
 121
 122    // draw layout
 123    pango_layout_set_font_description (layout, time1_font_desc);
 124    pango_layout_set_width (layout, clock->area.width * PANGO_SCALE);
 125    pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
 126    pango_layout_set_text (layout, buf_time, strlen(buf_time));
 127
 128    cairo_set_source_rgba (c, clock->font.color[0], clock->font.color[1], clock->font.color[2], clock->font.alpha);
 129
 130    pango_cairo_update_layout (c, layout);
 131    cairo_move_to (c, 0, clock->time1_posy);
 132    pango_cairo_show_layout (c, layout);
 133
 134    if (time2_format) {
 135       pango_layout_set_font_description (layout, time2_font_desc);
 136       pango_layout_set_indent(layout, 0);
 137       pango_layout_set_text (layout, buf_date, strlen(buf_date));
 138       pango_layout_set_width (layout, clock->area.width * PANGO_SCALE);
 139
 140       pango_cairo_update_layout (c, layout);
 141       cairo_move_to (c, 0, clock->time2_posy);
 142       pango_cairo_show_layout (c, layout);
 143    }
 144
 145    g_object_unref (layout);
 146 }
 147
 148
 149 void resize_clock (void *obj)
 150 {
 151    Clock *clock = obj;
 152    PangoLayout *layout;
 153    int time_width, date_width, new_width;
 154
 155    clock->area.redraw = 1;
 156    time_width = date_width = 0;
 157    strftime(buf_time, sizeof(buf_time), time1_format, localtime(&time_clock.tv_sec));
 158    if (time2_format)
 159       strftime(buf_date, sizeof(buf_date), time2_format, localtime(&time_clock.tv_sec));
 160
 161         // vertical panel doen't adjust width
 162         if (!panel_horizontal) return;
 163
 164    //printf("  resize_clock\n");
 165    cairo_surface_t *cs;
 166    cairo_t *c;
 167         Pixmap pmap;
 168         pmap = XCreatePixmap (server.dsp, server.root_win, clock->area.width, clock->area.height, server.depth);
 169
 170    cs = cairo_xlib_surface_create (server.dsp, pmap, server.visual, clock->area.width, clock->area.height);
 171    c = cairo_create (cs);
 172    layout = pango_cairo_create_layout (c);
 173
 174    // check width
 175         pango_layout_set_font_description (layout, time1_font_desc);
 176         pango_layout_set_indent(layout, 0);
 177         pango_layout_set_text (layout, buf_time, strlen(buf_time));
 178         pango_layout_get_pixel_size (layout, &time_width, NULL);
 179         if (time2_format) {
 180                 pango_layout_set_font_description (layout, time2_font_desc);
 181                 pango_layout_set_indent(layout, 0);
 182                 pango_layout_set_text (layout, buf_date, strlen(buf_date));
 183                 pango_layout_get_pixel_size (layout, &date_width, NULL);
 184         }
 185
 186         if (time_width > date_width) new_width = time_width;
 187         else new_width = date_width;
 188         new_width += (2*clock->area.paddingxlr) + (2*clock->area.pix.border.width);
 189
 190    if (new_width > clock->area.width || new_width < (clock->area.width-6)) {
 191       Panel *panel = ((Area*)obj)->panel;
 192
 193       // resize clock
 194       // we try to limit the number of resize
 195       // printf("clock_width %d, new_width %d\n", clock->area.width, new_width);
 196                 clock->area.width = new_width + 1;
 197                 clock->area.posx = panel->area.width - clock->area.width - panel->area.paddingxlr - panel->area.pix.border.width;
 198
 199       // resize other objects on panel
 200                 panel->area.resize = 1;
 201 #ifdef ENABLE_BATTERY
 202                 panel->battery.area.resize = 1;
 203 #endif
 204                 systray.area.resize = 1;
 205                 panel_refresh = 1;
 206    }
 207
 208    g_object_unref (layout);
 209    cairo_destroy (c);
 210    cairo_surface_destroy (cs);
 211    XFreePixmap (server.dsp, pmap);
 212 }
 213
 214
 215 void clock_action(int button)
 216 {
 217         char *command = 0;
 218         switch (button) {
 219                 case 1:
 220                 command = clock_lclick_command;
 221                 break;
 222                 case 3:
 223                 command = clock_rclick_command;
 224                 break;
 225         }
 226         if (command) {
 227                 pid_t pid;
 228                 pid = fork();
 229                 if (pid == 0) {
 230                         execl("/bin/sh", "/bin/sh", "-c", command, NULL);
 231                         _exit(0);
 232                 }
 233         }
 234 }
 235