src/frontends/xforms/FormTexinfo.C

   1 /**
   2  * \file FormTexinfo.C
   3  * Copyright 2001 the LyX Team
   4  * Read the file COPYING
   5  *
   6  * \author Herbert Voss <voss@lyx.org>
   7  * \date 2001-10-01
   8  */
   9
  10 #include <config.h>
  11 #include <fstream>
  12
  13 #ifdef __GNUG__
  14 #pragma implementation
  15 #endif
  16
  17 #include "xformsBC.h"
  18 #include "FormTexinfo.h"
  19 #include "form_texinfo.h"
  20 #include "gettext.h"
  21 #include "debug.h"
  22 #include "xforms_helpers.h"
  23 #include "support/LAssert.h"
  24
  25 namespace {
  26
  27 // C function wrapper, required by xforms.
  28 extern "C"
  29 int C_FormTexinfoFeedbackCB(FL_OBJECT * ob, int event,
  30                             FL_Coord, FL_Coord, int, void *)
  31 {
  32         // Note that the return value is important in the pre-emptive handler.
  33         // Don't return anything other than 0.
  34
  35         lyx::Assert(ob);
  36         // Don't Assert this one, as it can happen quite reasonably when things
  37         // are being deleted in the d-tor.
  38         //Assert(ob->form);
  39         if (!ob->form) return 0;
  40
  41         FormTexinfo * pre =
  42                 static_cast<FormTexinfo*>(ob->form->u_vdata);
  43         pre->feedbackCB(ob, event);
  44         return 0;
  45 }
  46
  47 void setPreHandler(FL_OBJECT * ob)
  48 {
  49         lyx::Assert(ob);
  50         fl_set_object_prehandler(ob, C_FormTexinfoFeedbackCB);
  51 }
  52
  53 } // namespace anon
  54
  55
  56 typedef FormCB<ControlTexinfo, FormDB<FD_form_texinfo> > base_class;
  57 FormTexinfo::FormTexinfo(ControlTexinfo & c)
  58         : base_class(c, _("TeX Infos")),
  59           warningPosted(false), activeStyle(ControlTexinfo::cls)
  60 {}
  61
  62
  63 void FormTexinfo::build() {
  64         dialog_.reset(build_texinfo());
  65         // courier medium
  66         fl_set_browser_fontstyle(dialog_->browser,FL_FIXED_STYLE);
  67         // with Path is default
  68         fl_set_button(dialog_->button_fullPath, 1);
  69         updateStyles(ControlTexinfo::cls);
  70
  71         setPreHandler(dialog_->button_rescan);
  72         setPreHandler(dialog_->button_view);
  73         setPreHandler(dialog_->button_texhash);
  74         setPreHandler(dialog_->button_fullPath);
  75         setPreHandler(dialog_->browser);
  76         setPreHandler(dialog_->radio_cls);
  77         setPreHandler(dialog_->radio_sty);
  78         setPreHandler(dialog_->radio_bst);
  79         setPreHandler(dialog_->message);
  80         setPreHandler(dialog_->help);
  81 }
  82
  83
  84 ButtonPolicy::SMInput FormTexinfo::input(FL_OBJECT * ob, long) {
  85         if (ob == dialog_->help) {
  86                 controller().help();
  87
  88         } else if (ob == dialog_->radio_cls) {
  89                 updateStyles(ControlTexinfo::cls);
  90
  91         } else if (ob == dialog_->radio_sty) {
  92                 updateStyles(ControlTexinfo::sty);
  93
  94         } else if (ob == dialog_->radio_bst) {
  95                 updateStyles(ControlTexinfo::bst);
  96
  97         } else if (ob == dialog_->button_rescan) {
  98                 // build new *Files.lst
  99                 controller().rescanStyles();
 100                 updateStyles(activeStyle);
 101
 102         } else if (ob == dialog_->button_fullPath) {
 103                 setEnabled(dialog_->button_view,
 104                            fl_get_button(dialog_->button_fullPath));
 105                 updateStyles(activeStyle);
 106
 107         } else if (ob == dialog_->button_texhash) {
 108                 // makes only sense if the rights are set well for
 109                 // users (/var/lib/texmf/ls-R)
 110                 controller().runTexhash();
 111                 // update files in fact of texhash
 112                 controller().rescanStyles();
 113
 114         } else if (ob == dialog_->button_view) {
 115                 unsigned int selection = fl_get_browser(dialog_->browser);
 116                 // a valid entry?
 117                 if (selection > 0) {
 118                         controller().viewFile(
 119                                 fl_get_browser_line(dialog_->browser,
 120                                                     selection));
 121                 }
 122         }
 123
 124         return ButtonPolicy::SMI_VALID;
 125 }
 126
 127 void FormTexinfo::updateStyles(ControlTexinfo::texFileSuffix whichStyle)
 128 {
 129         fl_clear_browser(dialog_->browser);
 130
 131         bool const withFullPath = fl_get_button(dialog_->button_fullPath);
 132
 133         string const str =
 134                 controller().getContents(whichStyle, withFullPath);
 135         fl_add_browser_line(dialog_->browser, str.c_str());
 136
 137         activeStyle = whichStyle;
 138 }
 139
 140
 141 // preemptive handler for feedback messages
 142 void FormTexinfo::feedbackCB(FL_OBJECT * ob, int event)
 143 {
 144         lyx::Assert(ob);
 145
 146         switch (event) {
 147         case FL_ENTER:
 148                 warningPosted = false;
 149                 feedback(ob);
 150                 break;
 151
 152         case FL_LEAVE:
 153                 if (!warningPosted) {
 154                         fl_set_object_label(dialog_->message, "");
 155                         fl_redraw_object(dialog_->message);
 156                 }
 157                 break;
 158
 159         default:
 160                 break;
 161         }
 162 }
 163
 164
 165 void FormTexinfo::feedback(FL_OBJECT * ob)
 166 {
 167         lyx::Assert(ob);
 168
 169         string str;
 170
 171         if (ob == dialog_->button_rescan) {
 172                 str = _("starts rescan ...");
 173
 174         } else if (ob == dialog_->button_fullPath) {
 175                 str = _("View full path or only file name");
 176
 177         } else if (ob == dialog_->button_texhash) {
 178                 str = _("starts texhash and rescan...");
 179
 180         } else if (ob == dialog_->button_view) {
 181                 str = _("views a selected file");
 182
 183         }
 184
 185         fl_set_object_label(dialog_->message, str.c_str());
 186         fl_redraw_object(dialog_->message);
 187 }