lib/widget/groupbox.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 groupbox.c
  33  *  \brief Source: WGroupbox widget
  34  */
  35
  36 #include <config.h>
  37
  38 #include "lib/global.h"
  39
  40 #include "lib/tty/tty.h"
  41 #include "lib/tty/color.h"
  42 #include "lib/skin.h"
  43 #include "lib/widget.h"
  44
  45 /*** global variables ****************************************************************************/
  46
  47 /*** file scope macro definitions ****************************************************************/
  48
  49 /*** file scope type declarations ****************************************************************/
  50
  51 /*** file scope variables ************************************************************************/
  52
  53 /*** file scope functions ************************************************************************/
  54
  55 static cb_ret_t
  56 groupbox_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
  57 {
  58     WGroupbox *g = GROUPBOX (w);
  59
  60     switch (msg)
  61     {
  62     case MSG_INIT:
  63         return MSG_HANDLED;
  64
  65     case MSG_FOCUS:
  66         return MSG_NOT_HANDLED;
  67
  68     case MSG_DRAW:
  69         {
  70             Widget *wo = WIDGET (w->owner);
  71
  72             gboolean disabled = (w->options & W_DISABLED) != 0;
  73             tty_setcolor (disabled ? DISABLED_COLOR : COLOR_NORMAL);
  74             draw_box (w->owner, w->y - wo->y, w->x - wo->x, w->lines, w->cols, TRUE);
  75
  76             if (g->title != NULL)
  77             {
  78                 tty_setcolor (disabled ? DISABLED_COLOR : COLOR_TITLE);
  79                 widget_move (w->owner, w->y - wo->y, w->x - wo->x + 1);
  80                 tty_print_string (g->title);
  81             }
  82             return MSG_HANDLED;
  83         }
  84
  85     case MSG_DESTROY:
  86         g_free (g->title);
  87         return MSG_HANDLED;
  88
  89     default:
  90         return widget_default_callback (w, sender, msg, parm, data);
  91     }
  92 }
  93
  94 /* --------------------------------------------------------------------------------------------- */
  95 /*** public functions ****************************************************************************/
  96 /* --------------------------------------------------------------------------------------------- */
  97
  98 WGroupbox *
  99 groupbox_new (int y, int x, int height, int width, const char *title)
 100 {
 101     WGroupbox *g;
 102     Widget *w;
 103
 104     g = g_new (WGroupbox, 1);
 105     w = WIDGET (g);
 106     init_widget (w, y, x, height, width, groupbox_callback, NULL);
 107
 108     widget_want_cursor (w, FALSE);
 109     widget_want_hotkey (w, FALSE);
 110
 111     g->title = NULL;
 112     groupbox_set_title (g, title);
 113
 114     return g;
 115 }
 116
 117 /* --------------------------------------------------------------------------------------------- */
 118
 119 void
 120 groupbox_set_title (WGroupbox *g, const char *title)
 121 {
 122     Widget *w = WIDGET (g);
 123
 124     g_free (g->title);
 125     g->title = NULL;
 126
 127     /* Strip existing spaces, add one space before and after the title */
 128     if (title != NULL && *title != '\0')
 129     {
 130         char *t;
 131
 132         t = g_strstrip (g_strdup (title));
 133         g->title = g_strconcat (" ", t, " ", (char *) NULL);
 134         g_free (t);
 135     }
 136
 137     if (w->owner != NULL)
 138         send_message (w, NULL, MSG_DRAW, 0, NULL);
 139 }
 140
 141 /* --------------------------------------------------------------------------------------------- */