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