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