gdb/tui/tui-out.c

   1 /* Output generating routines for GDB CLI.
   2
   3    Copyright (C) 1999-2014 Free Software Foundation, Inc.
   4
   5    Contributed by Cygnus Solutions.
   6    Written by Fernando Nasser for Cygnus.
   7
   8    This file is part of GDB.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  22
  23 #include "defs.h"
  24 #include "ui-out.h"
  25 #include "cli-out.h"
  26 #include "tui.h"
  27 #include <string.h>
  28
  29 struct tui_ui_out_data
  30   {
  31     struct cli_ui_out_data base;
  32
  33     int line;
  34     int start_of_line;
  35   };
  36 typedef struct tui_ui_out_data tui_out_data;
  37
  38 /* This is the TUI ui-out implementation functions vector.  It is
  39    initialized below in _initialize_tui_out, inheriting the CLI
  40    version, and overriding a few methods.  */
  41
  42 static struct ui_out_impl tui_ui_out_impl;
  43
  44 /* Output an int field.  */
  45
  46 static void
  47 tui_field_int (struct ui_out *uiout,
  48                int fldno, int width,
  49                enum ui_align alignment,
  50                const char *fldname,
  51                int value)
  52 {
  53   tui_out_data *data = ui_out_data (uiout);
  54
  55   if (data->base.suppress_output)
  56     return;
  57
  58   /* Don't print line number, keep it for later.  */
  59   if (data->start_of_line == 0 && strcmp (fldname, "line") == 0)
  60     {
  61       data->start_of_line ++;
  62       data->line = value;
  63       return;
  64     }
  65   data->start_of_line ++;
  66
  67   (*cli_ui_out_impl.field_int) (uiout, fldno,
  68                                 width, alignment, fldname, value);
  69 }
  70
  71 /* Other cli_field_* end up here so alignment and field separators are
  72    both handled by tui_field_string.  */
  73
  74 static void
  75 tui_field_string (struct ui_out *uiout,
  76                   int fldno, int width,
  77                   enum ui_align align,
  78                   const char *fldname,
  79                   const char *string)
  80 {
  81   tui_out_data *data = ui_out_data (uiout);
  82
  83   if (data->base.suppress_output)
  84     return;
  85
  86   if (fldname && data->line > 0 && strcmp (fldname, "fullname") == 0)
  87     {
  88       data->start_of_line ++;
  89       if (data->line > 0)
  90         {
  91           tui_show_source (string, data->line);
  92         }
  93       return;
  94     }
  95
  96   data->start_of_line++;
  97
  98   (*cli_ui_out_impl.field_string) (uiout, fldno,
  99                                    width, align,
 100                                    fldname, string);
 101 }
 102
 103 /* This is the only field function that does not align.  */
 104
 105 static void
 106 tui_field_fmt (struct ui_out *uiout, int fldno,
 107                int width, enum ui_align align,
 108                const char *fldname,
 109                const char *format,
 110                va_list args)
 111 {
 112   tui_out_data *data = ui_out_data (uiout);
 113
 114   if (data->base.suppress_output)
 115     return;
 116
 117   data->start_of_line++;
 118
 119   (*cli_ui_out_impl.field_fmt) (uiout, fldno,
 120                                 width, align,
 121                                 fldname, format, args);
 122 }
 123
 124 static void
 125 tui_text (struct ui_out *uiout, const char *string)
 126 {
 127   tui_out_data *data = ui_out_data (uiout);
 128
 129   if (data->base.suppress_output)
 130     return;
 131   data->start_of_line ++;
 132   if (data->line > 0)
 133     {
 134       if (strchr (string, '\n') != 0)
 135         {
 136           data->line = -1;
 137           data->start_of_line = 0;
 138         }
 139       return;
 140     }
 141   if (strchr (string, '\n'))
 142     data->start_of_line = 0;
 143
 144   (*cli_ui_out_impl.text) (uiout, string);
 145 }
 146
 147 struct ui_out *
 148 tui_out_new (struct ui_file *stream)
 149 {
 150   int flags = 0;
 151
 152   tui_out_data *data = XNEW (tui_out_data);
 153
 154   /* Initialize base "class".  */
 155   cli_out_data_ctor (&data->base, stream);
 156
 157   /* Initialize our fields.  */
 158   data->line = -1;
 159   data->start_of_line = 0;
 160
 161   return ui_out_new (&tui_ui_out_impl, data, flags);
 162 }
 163
 164 /* Standard gdb initialization hook.  */
 165
 166 extern void _initialize_tui_out (void);
 167
 168 void
 169 _initialize_tui_out (void)
 170 {
 171   /* Inherit the CLI version.  */
 172   tui_ui_out_impl = cli_ui_out_impl;
 173
 174   /* Override a few methods.  */
 175   tui_ui_out_impl.field_int = tui_field_int;
 176   tui_ui_out_impl.field_string = tui_field_string;
 177   tui_ui_out_impl.field_fmt = tui_field_fmt;
 178   tui_ui_out_impl.text = tui_text;
 179 }