lib/widget/hline.c

   1 /*
   2    Widgets for the Midnight Commander
   3
   4    Copyright (C) 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003,
   5    2004, 2005, 2006, 2007, 2009, 2010, 2011
   6    The Free Software Foundation, Inc.
   7
   8    Authors:
   9    Radek Doulik, 1994, 1995
  10    Miguel de Icaza, 1994, 1995
  11    Jakub Jelinek, 1995
  12    Andrej Borsenkow, 1996
  13    Norbert Warmuth, 1997
  14    Andrew Borodin <aborodin@vmail.ru>, 2009, 2010
  15
  16    This file is part of the Midnight Commander.
  17
  18    The Midnight Commander is free software: you can redistribute it
  19    and/or modify it under the terms of the GNU General Public License as
  20    published by the Free Software Foundation, either version 3 of the License,
  21    or (at your option) any later version.
  22
  23    The Midnight Commander is distributed in the hope that it will be useful,
  24    but WITHOUT ANY WARRANTY; without even the implied warranty of
  25    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  26    GNU General Public License for more details.
  27
  28    You should have received a copy of the GNU General Public License
  29    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  30  */
  31
  32 /** \file hline.c
  33  *  \brief Source: WHLine widget (horizontal line)
  34  */
  35
  36 #include <config.h>
  37
  38 #include <stdlib.h>
  39
  40 #include "lib/global.h"
  41 #include "lib/tty/tty.h"
  42 #include "lib/tty/color.h"
  43 #include "lib/skin.h"
  44 #include "lib/widget.h"
  45
  46 /*** global variables ****************************************************************************/
  47
  48 /*** file scope macro definitions ****************************************************************/
  49
  50 /*** file scope type declarations ****************************************************************/
  51
  52 /*** file scope variables ************************************************************************/
  53
  54 /*** file scope functions ************************************************************************/
  55
  56 static cb_ret_t
  57 hline_callback (Widget * w, widget_msg_t msg, int parm)
  58 {
  59     WHLine *l = (WHLine *) w;
  60     Dlg_head *h = l->widget.owner;
  61
  62     switch (msg)
  63     {
  64     case WIDGET_INIT:
  65     case WIDGET_RESIZED:
  66         if (l->auto_adjust_cols)
  67         {
  68             if (((w->owner->flags & DLG_COMPACT) != 0))
  69             {
  70                 w->x = w->owner->x;
  71                 w->cols = w->owner->cols;
  72             }
  73             else
  74             {
  75                 w->x = w->owner->x + 1;
  76                 w->cols = w->owner->cols - 2;
  77             }
  78         }
  79
  80     case WIDGET_FOCUS:
  81         /* We don't want to get the focus */
  82         return MSG_NOT_HANDLED;
  83
  84     case WIDGET_DRAW:
  85         if (l->transparent)
  86             tty_setcolor (DEFAULT_COLOR);
  87         else
  88             tty_setcolor (h->color[DLG_COLOR_NORMAL]);
  89
  90         tty_draw_hline (w->y, w->x + 1, ACS_HLINE, w->cols - 2);
  91
  92         if (l->auto_adjust_cols)
  93         {
  94             widget_move (w, 0, 0);
  95             tty_print_alt_char (ACS_LTEE, FALSE);
  96             widget_move (w, 0, w->cols - 1);
  97             tty_print_alt_char (ACS_RTEE, FALSE);
  98         }
  99         return MSG_HANDLED;
 100
 101     default:
 102         return default_proc (msg, parm);
 103     }
 104 }
 105
 106 /* --------------------------------------------------------------------------------------------- */
 107 /*** public functions ****************************************************************************/
 108 /* --------------------------------------------------------------------------------------------- */
 109
 110 WHLine *
 111 hline_new (int y, int x, int width)
 112 {
 113     WHLine *l;
 114     int lines = 1;
 115
 116     l = g_new (WHLine, 1);
 117     init_widget (&l->widget, y, x, lines, width, hline_callback, NULL);
 118     l->auto_adjust_cols = (width < 0);
 119     l->transparent = FALSE;
 120     widget_want_cursor (l->widget, FALSE);
 121     widget_want_hotkey (l->widget, FALSE);
 122
 123     return l;
 124 }
 125
 126 /* --------------------------------------------------------------------------------------------- */