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