libs/gtkmm2ext/textviewer.cc

   1 /*
   2     Copyright (C) 1999 Paul Barton-Davis
   3     This program is free software; you can redistribute it and/or modify
   4     it under the terms of the GNU General Public License as published by
   5     the Free Software Foundation; either version 2 of the License, or
   6     (at your option) any later version.
   7
   8     This program is distributed in the hope that it will be useful,
   9     but WITHOUT ANY WARRANTY; without even the implied warranty of
  10     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11     GNU General Public License for more details.
  12
  13     You should have received a copy of the GNU General Public License
  14     along with this program; if not, write to the Free Software
  15     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  16
  17     $Id$
  18 */
  19
  20 #include <string>
  21 #include <fstream>
  22
  23 #include <gtkmm2ext/textviewer.h>
  24
  25 #include "i18n.h"
  26
  27 using namespace std;
  28 using namespace Gtkmm2ext;
  29 using namespace sigc;
  30
  31 TextViewer::TextViewer (size_t xsize, size_t ysize) :
  32         Gtk::Window (Gtk::WINDOW_TOPLEVEL),
  33         Transmitter (Transmitter::Info), /* channel arg is irrelevant */
  34         dismiss (_("Close"))
  35 {
  36         set_size_request (xsize, ysize);
  37
  38         set_title ("Text Viewer");
  39         set_name ("TextViewer");
  40         set_resizable (true);
  41         set_border_width (0);
  42
  43         vbox1.set_homogeneous (false);
  44         vbox1.set_spacing (0);
  45         add (vbox1);
  46         vbox1.show ();
  47
  48         vbox2.set_homogeneous (false);
  49         vbox2.set_spacing (10);
  50         //vbox2.set_border_width (10);
  51
  52         vbox1.pack_start (vbox2, true, true, 0);
  53         vbox2.show ();
  54
  55         vbox2.pack_start (scrollwin, TRUE, TRUE, 0);
  56         scrollwin.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_ALWAYS);
  57         scrollwin.show ();
  58
  59         etext.set_editable (false);
  60         etext.set_wrap_mode (Gtk::WRAP_WORD);
  61         scrollwin.add (etext);
  62         etext.show ();
  63
  64         vbox1.pack_start (dismiss, false, false, 0);
  65         dismiss.show ();
  66
  67         dismiss.signal_clicked().connect(mem_fun (*this, &TextViewer::signal_released_handler));
  68 }
  69
  70 void
  71 TextViewer::signal_released_handler()
  72 {
  73         hide();
  74 }
  75
  76 void
  77 TextViewer::insert_file (const string &path)
  78
  79 {
  80         char buf[1024];
  81         ifstream f (path.c_str());
  82
  83         if (!f) {
  84                 return;
  85         }
  86
  87         Glib::RefPtr<Gtk::TextBuffer> tb (etext.get_buffer());
  88
  89         tb->begin_user_action();
  90         while (f) {
  91                 f.read (buf, sizeof (buf));
  92
  93                 if (f.gcount()) {
  94                         buf[f.gcount()] = '\0';
  95                         string foo (buf);
  96                         tb->insert (tb->end(), foo);
  97                 }
  98         }
  99         tb->end_user_action();
 100 }
 101
 102 void
 103 TextViewer::scroll_to_bottom ()
 104
 105 {
 106         Gtk::Adjustment *adj;
 107
 108         adj = scrollwin.get_vadjustment();
 109         adj->set_value (MAX(0,(adj->get_upper() - adj->get_page_size())));
 110 }
 111
 112 void
 113 TextViewer::deliver ()
 114
 115 {
 116         char buf[1024];
 117         Glib::RefPtr<Gtk::TextBuffer> tb (etext.get_buffer());
 118
 119         while (!eof()) {
 120                 read (buf, sizeof (buf));
 121                 buf[gcount()] = '\0';
 122                 string foo (buf);
 123                 tb->insert (tb->end(), foo);
 124         }
 125         scroll_to_bottom ();
 126         clear ();
 127 }