gdb/tui/tui-out.c

   1 /* Output generating routines for GDB CLI.
   2
   3    Copyright (C) 1999, 2000, 2001, 2002, 2003, 2005, 2007, 2008, 2009, 2010,
   4    2011 Free Software Foundation, Inc.
   5
   6    Contributed by Cygnus Solutions.
   7    Written by Fernando Nasser for Cygnus.
   8
   9    This file is part of GDB.
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 3 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  23
  24 #include "defs.h"
  25 #include "ui-out.h"
  26 #include "cli-out.h"
  27 #include "tui.h"
  28 #include "gdb_string.h"
  29 #include "gdb_assert.h"
  30
  31 struct tui_ui_out_data
  32   {
  33     struct cli_ui_out_data base;
  34
  35     int line;
  36     int start_of_line;
  37   };
  38 typedef struct tui_ui_out_data tui_out_data;
  39
  40 /* This is the TUI ui-out implementation functions vector.  It is
  41    initialized below in _initialize_tui_out, inheriting the CLI
  42    version, and overriding a few methods.  */
  43
  44 static struct ui_out_impl tui_ui_out_impl;
  45
  46 /* Output an int field.  */
  47
  48 static void
  49 tui_field_int (struct ui_out *uiout,
  50                int fldno, int width,
  51                enum ui_align alignment,
  52                const char *fldname,
  53                int value)
  54 {
  55   tui_out_data *data = ui_out_data (uiout);
  56
  57   if (data->base.suppress_output)
  58     return;
  59
  60   /* Don't print line number, keep it for later.  */
  61   if (data->start_of_line == 0 && strcmp (fldname, "line") == 0)
  62     {
  63       data->start_of_line ++;
  64       data->line = value;
  65       return;
  66     }
  67   data->start_of_line ++;
  68
  69   (*cli_ui_out_impl.field_int) (uiout, fldno,
  70                                 width, alignment, fldname, value);
  71 }
  72
  73 /* Other cli_field_* end up here so alignment and field separators are
  74    both handled by tui_field_string.  */
  75
  76 static void
  77 tui_field_string (struct ui_out *uiout,
  78                   int fldno, int width,
  79                   enum ui_align align,
  80                   const char *fldname,
  81                   const char *string)
  82 {
  83   tui_out_data *data = ui_out_data (uiout);
  84
  85   if (data->base.suppress_output)
  86     return;
  87
  88   if (fldname && data->line > 0 && strcmp (fldname, "file") == 0)
  89     {
  90       data->start_of_line ++;
  91       if (data->line > 0)
  92         {
  93           tui_show_source (string, data->line);
  94         }
  95       return;
  96     }
  97
  98   data->start_of_line++;
  99
 100   (*cli_ui_out_impl.field_string) (uiout, fldno,
 101                                    width, align,
 102                                    fldname, string);
 103 }
 104
 105 /* This is the only field function that does not align.  */
 106
 107 static void
 108 tui_field_fmt (struct ui_out *uiout, int fldno,
 109                int width, enum ui_align align,
 110                const char *fldname,
 111                const char *format,
 112                va_list args)
 113 {
 114   tui_out_data *data = ui_out_data (uiout);
 115
 116   if (data->base.suppress_output)
 117     return;
 118
 119   data->start_of_line++;
 120
 121   (*cli_ui_out_impl.field_fmt) (uiout, fldno,
 122                                 width, align,
 123                                 fldname, format, args);
 124 }
 125
 126 static void
 127 tui_text (struct ui_out *uiout, const char *string)
 128 {
 129   tui_out_data *data = ui_out_data (uiout);
 130
 131   if (data->base.suppress_output)
 132     return;
 133   data->start_of_line ++;
 134   if (data->line > 0)
 135     {
 136       if (strchr (string, '\n') != 0)
 137         {
 138           data->line = -1;
 139           data->start_of_line = 0;
 140         }
 141       return;
 142     }
 143   if (strchr (string, '\n'))
 144     data->start_of_line = 0;
 145
 146   (*cli_ui_out_impl.text) (uiout, string);
 147 }
 148
 149 struct ui_out *
 150 tui_out_new (struct ui_file *stream)
 151 {
 152   int flags = 0;
 153
 154   tui_out_data *data = XMALLOC (tui_out_data);
 155
 156   /* Initialize base "class".  */
 157   cli_out_data_ctor (&data->base, stream);
 158
 159   /* Initialize our fields.  */
 160   data->line = -1;
 161   data->start_of_line = 0;
 162
 163   return ui_out_new (&tui_ui_out_impl, data, flags);
 164 }
 165
 166 /* Standard gdb initialization hook.  */
 167
 168 extern void _initialize_tui_out (void);
 169
 170 void
 171 _initialize_tui_out (void)
 172 {
 173   /* Inherit the CLI version.  */
 174   tui_ui_out_impl = cli_ui_out_impl;
 175
 176   /* Override a few methods.  */
 177   tui_ui_out_impl.field_int = tui_field_int;
 178   tui_ui_out_impl.field_string = tui_field_string;
 179   tui_ui_out_impl.field_fmt = tui_field_fmt;
 180   tui_ui_out_impl.text = tui_text;
 181 }