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
  26 #include "window.h"
  27 #include "server.h"
  28 #include "area.h"
  29 #include "clock.h"
  30 #include "panel.h"
  31
  32
  33 char *time1_format = 0;
  34 char *time2_format = 0;
  35 struct timeval time_clock;
  36 int  time_precision;
  37
  38
  39 void init_clock(Clock *clock, int panel_height)
  40 {
  41    char buf_time[40];
  42    char buf_date[40];
  43    int time_height, time_height_ink, date_height, date_height_ink;
  44
  45    if (!time1_format) return;
  46
  47    if (strchr(time1_format, 'S') == NULL) time_precision = 60;
  48    else time_precision = 1;
  49
  50    clock->area.posy = panel.area.pix.border.width + panel.area.paddingy;
  51    clock->area.height = panel.area.height - (2 * clock->area.posy);
  52    clock->area.width = 0;  // force posx and width detection
  53    clock->area.redraw = 1;
  54
  55    gettimeofday(&time_clock, 0);
  56    time_clock.tv_sec -= time_clock.tv_sec % time_precision;
  57
  58    strftime(buf_time, sizeof(buf_time), time1_format, localtime(&time_clock.tv_sec));
  59    if (time2_format)
  60       strftime(buf_date, sizeof(buf_date), time2_format, localtime(&time_clock.tv_sec));
  61
  62    get_text_size(clock->time1_font_desc, &time_height_ink, &time_height, panel_height, buf_time, strlen(buf_time));
  63    clock->time1_posy = (clock->area.height - time_height) / 2;
  64
  65    if (time2_format) {
  66       get_text_size(clock->time2_font_desc, &date_height_ink, &date_height, panel_height, buf_date, strlen(buf_date));
  67
  68       clock->time1_posy -= ((date_height_ink + 2) / 2);
  69       clock->time2_posy = clock->time1_posy + time_height + 2 - (time_height - time_height_ink)/2 - (date_height - date_height_ink)/2;
  70    }
  71 }
  72
  73
  74 void draw_foreground_clock (void *obj, cairo_t *c, int active)
  75 {
  76    Clock *clock = obj;
  77    PangoLayout *layout;
  78    char buf_time[40];
  79    char buf_date[40];
  80    int time_width, date_width, new_width;
  81
  82    time_width = date_width = 0;
  83    strftime(buf_time, sizeof(buf_time), time1_format, localtime(&time_clock.tv_sec));
  84    if (time2_format)
  85       strftime(buf_date, sizeof(buf_date), time2_format, localtime(&time_clock.tv_sec));
  86
  87    //printf("  draw_foreground_clock : %s\n", buf_time);
  88 redraw:
  89    layout = pango_cairo_create_layout (c);
  90
  91    // check width
  92    pango_layout_set_font_description (layout, clock->time1_font_desc);
  93    pango_layout_set_indent(layout, 0);
  94    pango_layout_set_text (layout, buf_time, strlen(buf_time));
  95    pango_layout_get_pixel_size (layout, &time_width, NULL);
  96    if (time2_format) {
  97       pango_layout_set_font_description (layout, clock->time2_font_desc);
  98       pango_layout_set_indent(layout, 0);
  99       pango_layout_set_text (layout, buf_date, strlen(buf_date));
 100       pango_layout_get_pixel_size (layout, &date_width, NULL);
 101    }
 102    if (time_width > date_width) new_width = time_width;
 103    else new_width = date_width;
 104    new_width += (2*clock->area.paddingxlr) + (2*clock->area.pix.border.width);
 105
 106    if (new_width > clock->area.width || (new_width != clock->area.width && date_width > time_width)) {
 107       //printf("clock_width %d, new_width %d\n", clock->area.width, new_width);
 108       // resize clock
 109       clock->area.width = new_width;
 110       panel.clock.area.posx = panel.area.width - panel.clock.area.width - panel.area.paddingxlr - panel.area.pix.border.width;
 111
 112       g_object_unref (layout);
 113       resize_taskbar();
 114       goto redraw;
 115    }
 116
 117    // draw layout
 118    pango_layout_set_font_description (layout, clock->time1_font_desc);
 119    pango_layout_set_width (layout, clock->area.width * PANGO_SCALE);
 120    pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
 121    pango_layout_set_text (layout, buf_time, strlen(buf_time));
 122
 123    cairo_set_source_rgba (c, clock->font.color[0], clock->font.color[1], clock->font.color[2], clock->font.alpha);
 124
 125    pango_cairo_update_layout (c, layout);
 126    cairo_move_to (c, 0, clock->time1_posy);
 127    pango_cairo_show_layout (c, layout);
 128
 129    if (time2_format) {
 130       pango_layout_set_font_description (layout, clock->time2_font_desc);
 131       pango_layout_set_indent(layout, 0);
 132       pango_layout_set_text (layout, buf_date, strlen(buf_date));
 133       pango_layout_set_width (layout, clock->area.width * PANGO_SCALE);
 134
 135       pango_cairo_update_layout (c, layout);
 136       cairo_move_to (c, 0, clock->time2_posy);
 137       pango_cairo_show_layout (c, layout);
 138    }
 139
 140    g_object_unref (layout);
 141 }
 142