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