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    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   if (data->base.suppress_output)
  57     return;
  58
  59   /* Don't print line number, keep it for later.  */
  60   if (data->start_of_line == 0 && strcmp (fldname, "line") == 0)
  61     {
  62       data->start_of_line ++;
  63       data->line = value;
  64       return;
  65     }
  66   data->start_of_line ++;
  67
  68   (*cli_ui_out_impl.field_int) (uiout, fldno,
  69                                 width, alignment, fldname, value);
  70 }
  71
  72 /* Other cli_field_* end up here so alignment and field separators are
  73    both handled by tui_field_string.  */
  74
  75 static void
  76 tui_field_string (struct ui_out *uiout,
  77                   int fldno, int width,
  78                   enum ui_align align,
  79                   const char *fldname,
  80                   const char *string)
  81 {
  82   tui_out_data *data = ui_out_data (uiout);
  83   if (data->base.suppress_output)
  84     return;
  85
  86   if (fldname && data->line > 0 && strcmp (fldname, "file") == 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   if (data->base.suppress_output)
 114     return;
 115
 116   data->start_of_line++;
 117
 118   (*cli_ui_out_impl.field_fmt) (uiout, fldno,
 119                                 width, align,
 120                                 fldname, format, args);
 121 }
 122
 123 static void
 124 tui_text (struct ui_out *uiout, const char *string)
 125 {
 126   tui_out_data *data = ui_out_data (uiout);
 127   if (data->base.suppress_output)
 128     return;
 129   data->start_of_line ++;
 130   if (data->line > 0)
 131     {
 132       if (strchr (string, '\n') != 0)
 133         {
 134           data->line = -1;
 135           data->start_of_line = 0;
 136         }
 137       return;
 138     }
 139   if (strchr (string, '\n'))
 140     data->start_of_line = 0;
 141
 142   (*cli_ui_out_impl.text) (uiout, string);
 143 }
 144
 145 struct ui_out *
 146 tui_out_new (struct ui_file *stream)
 147 {
 148   int flags = 0;
 149
 150   tui_out_data *data = XMALLOC (tui_out_data);
 151
 152   /* Initialize base "class".  */
 153   cli_out_data_ctor (&data->base, stream);
 154
 155   /* Initialize our fields.  */
 156   data->line = -1;
 157   data->start_of_line = 0;
 158
 159   return ui_out_new (&tui_ui_out_impl, data, flags);
 160 }
 161
 162 /* Standard gdb initialization hook.  */
 163
 164 extern void _initialize_tui_out (void);
 165
 166 void
 167 _initialize_tui_out (void)
 168 {
 169 /* Inherit the CLI version.  */
 170   tui_ui_out_impl = cli_ui_out_impl;
 171
 172   /* Override a few methods.  */
 173   tui_ui_out_impl.field_int = tui_field_int;
 174   tui_ui_out_impl.field_string = tui_field_string;
 175   tui_ui_out_impl.field_fmt = tui_field_fmt;
 176   tui_ui_out_impl.text = tui_text;
 177 }