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 #include <signal.h>
  27
  28 #include "window.h"
  29 #include "server.h"
  30 #include "area.h"
  31 #include "panel.h"
  32 #include "taskbar.h"
  33 #include "clock.h"
  34 #include "timer.h"
  35
  36
  37 char *time1_format=0;
  38 char *time2_format=0;
  39 char *time_tooltip_format=0;
  40 char *clock_lclick_command=0;
  41 char *clock_rclick_command=0;
  42 struct timeval time_clock;
  43 PangoFontDescription *time1_font_desc=0;
  44 PangoFontDescription *time2_font_desc=0;
  45 static char buf_time[40];
  46 static char buf_date[40];
  47 static char buf_tooltip[40];
  48 int clock_enabled;
  49
  50
  51 void update_clocks()
  52 {
  53         gettimeofday(&time_clock, 0);
  54         int i;
  55         if (time1_format) {
  56                 for (i=0 ; i < nb_panel ; i++)
  57                         panel1[i].clock.area.resize = 1;
  58         }
  59         panel_refresh = 1;
  60 }
  61
  62
  63 const char* clock_get_tooltip(void* obj)
  64 {
  65         strftime(buf_tooltip, sizeof(buf_tooltip), time_tooltip_format, localtime(&time_clock.tv_sec));
  66         return buf_tooltip;
  67 }
  68
  69
  70 void init_clock()
  71 {
  72         if(time1_format) {
  73                 if (strchr(time1_format, 'S') || strchr(time1_format, 'T') || strchr(time1_format, 'r'))
  74                         install_timer(0, 1000000, 1, 0, update_clocks);
  75                 else install_timer(0, 1000000, 60, 0, update_clocks);
  76         }
  77 }
  78
  79
  80 void init_clock_panel(void *p)
  81 {
  82         Panel *panel =(Panel*)p;
  83         Clock *clock = &panel->clock;
  84         int time_height, time_height_ink, date_height, date_height_ink;
  85
  86         clock->area.parent = p;
  87         clock->area.panel = p;
  88         clock->area._draw_foreground = draw_clock;
  89         clock->area._resize = resize_clock;
  90         clock->area.resize = 1;
  91         clock->area.redraw = 1;
  92         clock->area.on_screen = 1;
  93
  94         strftime(buf_time, sizeof(buf_time), time1_format, localtime(&time_clock.tv_sec));
  95         get_text_size(time1_font_desc, &time_height_ink, &time_height, panel->area.height, buf_time, strlen(buf_time));
  96         if (time2_format) {
  97                 strftime(buf_date, sizeof(buf_date), time2_format, localtime(&time_clock.tv_sec));
  98                 get_text_size(time2_font_desc, &date_height_ink, &date_height, panel->area.height, buf_date, strlen(buf_date));
  99         }
 100
 101         if (panel_horizontal) {
 102                 // panel horizonal => fixed height and posy
 103                 clock->area.posy = panel->area.pix.border.width + panel->area.paddingy;
 104                 clock->area.height = panel->area.height - (2 * clock->area.posy);
 105         }
 106         else {
 107                 // panel vertical => fixed width, height, posy and posx
 108                 clock->area.posy = panel->area.pix.border.width + panel->area.paddingxlr;
 109                 clock->area.height = (2 * clock->area.paddingxlr) + (time_height + date_height);
 110                 clock->area.posx = panel->area.pix.border.width + panel->area.paddingy;
 111                 clock->area.width = panel->area.width - (2 * panel->area.pix.border.width) - (2 * panel->area.paddingy);
 112         }
 113
 114         clock->time1_posy = (clock->area.height - time_height) / 2;
 115         if (time2_format) {
 116                 strftime(buf_date, sizeof(buf_date), time2_format, localtime(&time_clock.tv_sec));
 117                 get_text_size(time2_font_desc, &date_height_ink, &date_height, panel->area.height, buf_date, strlen(buf_date));
 118
 119                 clock->time1_posy -= ((date_height_ink + 2) / 2);
 120                 clock->time2_posy = clock->time1_posy + time_height + 2 - (time_height - time_height_ink)/2 - (date_height - date_height_ink)/2;
 121         }
 122
 123         if (time_tooltip_format) {
 124                 clock->area._get_tooltip_text = clock_get_tooltip;
 125                 strftime(buf_tooltip, sizeof(buf_tooltip), time_tooltip_format, localtime(&time_clock.tv_sec));
 126         }
 127 }
 128
 129
 130 void cleanup_clock()
 131 {
 132         clock_enabled = 0;
 133         if (time1_font_desc)
 134                 pango_font_description_free(time1_font_desc);
 135         if (time2_font_desc)
 136                 pango_font_description_free(time2_font_desc);
 137         if (time1_format)
 138                 g_free(time1_format);
 139         if (time2_format)
 140                 g_free(time2_format);
 141         if (time_tooltip_format)
 142                 g_free(time_tooltip_format);
 143         if (clock_lclick_command)
 144                 g_free(clock_lclick_command);
 145         if (clock_rclick_command)
 146                 g_free(clock_rclick_command);
 147         time1_font_desc = time2_font_desc = 0;
 148         time1_format = time2_format = 0;
 149         clock_lclick_command = clock_rclick_command = 0;
 150 }
 151
 152
 153 void draw_clock (void *obj, cairo_t *c, int active)
 154 {
 155         Clock *clock = obj;
 156         PangoLayout *layout;
 157
 158         layout = pango_cairo_create_layout (c);
 159
 160         // draw layout
 161         pango_layout_set_font_description (layout, time1_font_desc);
 162         pango_layout_set_width (layout, clock->area.width * PANGO_SCALE);
 163         pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
 164         pango_layout_set_text (layout, buf_time, strlen(buf_time));
 165
 166         cairo_set_source_rgba (c, clock->font.color[0], clock->font.color[1], clock->font.color[2], clock->font.alpha);
 167
 168         pango_cairo_update_layout (c, layout);
 169         cairo_move_to (c, 0, clock->time1_posy);
 170         pango_cairo_show_layout (c, layout);
 171
 172         if (time2_format) {
 173                 pango_layout_set_font_description (layout, time2_font_desc);
 174                 pango_layout_set_indent(layout, 0);
 175                 pango_layout_set_text (layout, buf_date, strlen(buf_date));
 176                 pango_layout_set_width (layout, clock->area.width * PANGO_SCALE);
 177
 178                 pango_cairo_update_layout (c, layout);
 179                 cairo_move_to (c, 0, clock->time2_posy);
 180                 pango_cairo_show_layout (c, layout);
 181         }
 182
 183         g_object_unref (layout);
 184 }
 185
 186
 187 void resize_clock (void *obj)
 188 {
 189         Clock *clock = obj;
 190         PangoLayout *layout;
 191         int time_width, date_width, new_width;
 192
 193         clock->area.redraw = 1;
 194         time_width = date_width = 0;
 195         strftime(buf_time, sizeof(buf_time), time1_format, localtime(&time_clock.tv_sec));
 196         if (time2_format)
 197                 strftime(buf_date, sizeof(buf_date), time2_format, localtime(&time_clock.tv_sec));
 198
 199         // vertical panel doen't adjust width
 200         if (!panel_horizontal) return;
 201
 202         //printf("  resize_clock\n");
 203         cairo_surface_t *cs;
 204         cairo_t *c;
 205         Pixmap pmap;
 206         pmap = XCreatePixmap (server.dsp, server.root_win, clock->area.width, clock->area.height, server.depth);
 207
 208         cs = cairo_xlib_surface_create (server.dsp, pmap, server.visual, clock->area.width, clock->area.height);
 209         c = cairo_create (cs);
 210         layout = pango_cairo_create_layout (c);
 211
 212         // check width
 213         pango_layout_set_font_description (layout, time1_font_desc);
 214         pango_layout_set_indent(layout, 0);
 215         pango_layout_set_text (layout, buf_time, strlen(buf_time));
 216         pango_layout_get_pixel_size (layout, &time_width, NULL);
 217         if (time2_format) {
 218                 pango_layout_set_font_description (layout, time2_font_desc);
 219                 pango_layout_set_indent(layout, 0);
 220                 pango_layout_set_text (layout, buf_date, strlen(buf_date));
 221                 pango_layout_get_pixel_size (layout, &date_width, NULL);
 222         }
 223
 224         if (time_width > date_width) new_width = time_width;
 225         else new_width = date_width;
 226         new_width += (2*clock->area.paddingxlr) + (2*clock->area.pix.border.width);
 227
 228         Panel *panel = ((Area*)obj)->panel;
 229         clock->area.posx = panel->area.width - clock->area.width - panel->area.paddingxlr - panel->area.pix.border.width;
 230
 231         if (new_width > clock->area.width || new_width < (clock->area.width-6)) {
 232                 // resize clock
 233                 // we try to limit the number of resize
 234                 // printf("clock_width %d, new_width %d\n", clock->area.width, new_width);
 235                 clock->area.width = new_width + 1;
 236
 237                 // resize other objects on panel
 238                 panel->area.resize = 1;
 239 #ifdef ENABLE_BATTERY
 240                 panel->battery.area.resize = 1;
 241 #endif
 242                 systray.area.resize = 1;
 243                 panel_refresh = 1;
 244         }
 245
 246         g_object_unref (layout);
 247         cairo_destroy (c);
 248         cairo_surface_destroy (cs);
 249         XFreePixmap (server.dsp, pmap);
 250 }
 251
 252
 253 void clock_action(int button)
 254 {
 255         char *command = 0;
 256         switch (button) {
 257                 case 1:
 258                 command = clock_lclick_command;
 259                 break;
 260                 case 3:
 261                 command = clock_rclick_command;
 262                 break;
 263         }
 264         if (command) {
 265                 pid_t pid;
 266                 sigset_t sigset;
 267                 sigprocmask(SIG_SETMASK, &sigset, 0);
 268                 sigprocmask(SIG_UNBLOCK, &sigset, 0);
 269                 pid = fork();
 270                 sigprocmask(SIG_BLOCK, &sigset, 0);
 271                 if (pid == 0) {
 272                         execl("/bin/sh", "/bin/sh", "-c", command, NULL);
 273                         _exit(0);
 274                 }
 275         }
 276 }
 277