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 * sender, widget_msg_t msg, int parm, void *data)
  58 {
  59     WHLine *l = HLINE (w);
  60     WDialog *h = w->owner;
  61
  62     switch (msg)
  63     {
  64     case MSG_INIT:
  65     case MSG_RESIZE:
  66         if (l->auto_adjust_cols)
  67         {
  68             Widget *wo = WIDGET (h);
  69
  70             if (((h->flags & DLG_COMPACT) != 0))
  71             {
  72                 w->x = wo->x;
  73                 w->cols = wo->cols;
  74             }
  75             else
  76             {
  77                 w->x = wo->x + 1;
  78                 w->cols = wo->cols - 2;
  79             }
  80         }
  81
  82     case MSG_FOCUS:
  83         /* We don't want to get the focus */
  84         return MSG_NOT_HANDLED;
  85
  86     case MSG_DRAW:
  87         if (l->transparent)
  88             tty_setcolor (DEFAULT_COLOR);
  89         else
  90             tty_setcolor (h->color[DLG_COLOR_NORMAL]);
  91
  92         tty_draw_hline (w->y, w->x + 1, ACS_HLINE, w->cols - 2);
  93
  94         if (l->auto_adjust_cols)
  95         {
  96             widget_move (w, 0, 0);
  97             tty_print_alt_char (ACS_LTEE, FALSE);
  98             widget_move (w, 0, w->cols - 1);
  99             tty_print_alt_char (ACS_RTEE, FALSE);
 100         }
 101         return MSG_HANDLED;
 102
 103     default:
 104         return widget_default_callback (w, sender, msg, parm, data);
 105     }
 106 }
 107
 108 /* --------------------------------------------------------------------------------------------- */
 109 /*** public functions ****************************************************************************/
 110 /* --------------------------------------------------------------------------------------------- */
 111
 112 WHLine *
 113 hline_new (int y, int x, int width)
 114 {
 115     WHLine *l;
 116     Widget *w;
 117     int lines = 1;
 118
 119     l = g_new (WHLine, 1);
 120     w = WIDGET (l);
 121     init_widget (w, y, x, lines, width < 0 ? 1 : width, hline_callback, NULL);
 122     l->auto_adjust_cols = (width < 0);
 123     l->transparent = FALSE;
 124     widget_want_cursor (w, FALSE);
 125     widget_want_hotkey (w, FALSE);
 126
 127     return l;
 128 }
 129
 130 /* --------------------------------------------------------------------------------------------- */