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