src/frontends/xforms/xform_helpers.C

   1 /** Collection of some useful xform helper functions
   2  */
   3
   4 #include <config.h>
   5
   6 #include FORMS_H_LOCATION
   7
   8 #ifdef __GNUG_
   9 #pragma implementation
  10 #endif
  11
  12 #include <vector>
  13 #include "xform_helpers.h"
  14 #include <fstream> // ofstream
  15 #include "lyxlex.h"
  16 #include "filedlg.h" // LyXFileDlg
  17 #include "support/FileInfo.h"
  18 #include "support/filetools.h"
  19 #include "lyx_gui_misc.h" // WriteAlert
  20 #include "gettext.h"
  21
  22 using std::ofstream;
  23 using std::pair;
  24 using std::vector;
  25
  26 // Take a string and add breaks so that it fits into a desired label width, w
  27 string formatted( string const & sin, int w, int size, int style )
  28 {
  29         string sout;
  30         if (sin.empty() ) return sout;
  31
  32         // break sin up into a vector of individual words
  33         vector<string> sentence;
  34         string word;
  35         for (string::const_iterator sit = sin.begin();
  36              sit != sin.end(); ++sit) {
  37                 if ((*sit) == ' ' || (*sit) == '\n') {
  38                         sentence.push_back(word);
  39                         word.erase();
  40                 } else {
  41                         word += (*sit);
  42                 }
  43         }
  44         // Flush remaining contents of word
  45         if (!word.empty() ) sentence.push_back(word);
  46
  47         string line, l1;
  48         for (vector<string>::const_iterator vit = sentence.begin();
  49              vit != sentence.end(); ++vit) {
  50                 if (!l1.empty() ) l1 += ' ';
  51                 l1 += (*vit);
  52                 int length = fl_get_string_width(style, size, l1.c_str(),
  53                                                  int(l1.length()));
  54                 if (length >= w) {
  55                         if (!sout.empty() ) sout += '\n';
  56                         sout += line;
  57                         l1 = (*vit);
  58                 }
  59
  60                 line = l1;
  61         }
  62         // Flush remaining contents of line
  63         if (!line.empty()) {
  64                 if (!sout.empty() ) sout += '\n';
  65                 sout += line;
  66         }
  67
  68         return sout;
  69 }
  70
  71
  72 string const browseFile( string const & filename,
  73                          string const & title,
  74                          string const & pattern,
  75                          pair<string,string> const & dir1,
  76                          pair<string,string> const & dir2 )
  77 {
  78         string lastPath = ".";
  79         if( !filename.empty() ) lastPath = OnlyPath(filename);
  80
  81         LyXFileDlg fileDlg;
  82
  83         if( !dir1.second.empty() ) {
  84                 FileInfo fileInfo( dir1.second );
  85                 if( fileInfo.isOK() && fileInfo.isDir() )
  86                         fileDlg.SetButton( 0, dir1.first, dir1.second );
  87         }
  88
  89         if( !dir2.second.empty() ) {
  90                 FileInfo fileInfo( dir2.second );
  91                 if( fileInfo.isOK() && fileInfo.isDir() )
  92                     fileDlg.SetButton( 1, dir2.first, dir2.second );
  93         }
  94
  95         bool error = false;
  96         string buf;
  97         do {
  98                 string p = fileDlg.Select(title,
  99                                           lastPath,
 100                                           pattern, filename );
 101
 102                 if (p.empty()) return p;
 103
 104                 lastPath = OnlyPath(p);
 105
 106                 if (p.find_first_of("#~$% ") != string::npos) {
 107                         WriteAlert(_("Filename can't contain any "
 108                                      "of these characters:"),
 109                                    _("space, '#', '~', '$' or '%'."));
 110                         error = true;
 111                 } else {
 112                         error = false;
 113                         buf = p;
 114                 }
 115         } while (error);
 116
 117         return buf;
 118 }
 119
 120
 121 // sorted by hand to prevent LyXLex from complaining on read().
 122 static
 123 keyword_item xformTags[] = {
 124 //      { "\\gui_active_tab", FL_LIGHTER_COL1 },
 125         { "\\gui_background", FL_COL1 },
 126         { "\\gui_buttonbottom", FL_BOTTOM_BCOL },
 127         { "\\gui_buttonleft", FL_LEFT_BCOL },
 128         { "\\gui_buttonright", FL_RIGHT_BCOL },
 129         { "\\gui_buttontop", FL_TOP_BCOL },
 130         { "\\gui_inactive", FL_INACTIVE },
 131         { "\\gui_push_button", FL_YELLOW },
 132         { "\\gui_selected", FL_MCOL },
 133         { "\\gui_text", FL_BLACK }
 134 };
 135
 136
 137 static const int xformCount = sizeof(xformTags) / sizeof(keyword_item);
 138
 139
 140 bool XformColor::read(string const & filename)
 141 {
 142         LyXLex lexrc(xformTags, xformCount);
 143         if (!lexrc.setFile(filename))
 144                 return false;
 145
 146         while (lexrc.IsOK()) {
 147                 int const le = lexrc.lex();
 148
 149                 switch (le) {
 150                 case LyXLex::LEX_UNDEF:
 151                         lexrc.printError("Unknown tag `$$Token'");
 152                         continue;
 153                 case LyXLex::LEX_FEOF:
 154                         continue;
 155                 default: break;
 156                 }
 157
 158                 RGBColor col;
 159
 160                 if (!lexrc.next()) break;
 161                 col.r = lexrc.GetInteger();
 162
 163                 if (!lexrc.next()) break;
 164                 col.g = lexrc.GetInteger();
 165
 166                 if (!lexrc.next()) break;
 167                 col.b = lexrc.GetInteger();
 168
 169                 fl_mapcolor(le, col.r, col.g, col.b);
 170         }
 171
 172         return true;
 173 }
 174
 175
 176 bool XformColor::write(string const & filename)
 177 {
 178         ofstream os(filename.c_str());
 179         if (!os)
 180                 return false;
 181
 182         os << "### This file is part of\n"
 183            << "### ========================================================\n"
 184            << "###          LyX, The Document Processor\n"
 185            << "###\n"
 186            << "###          Copyright 1995 Matthias Ettrich\n"
 187            << "###          Copyright 1995-2000 The LyX Team.\n"
 188            << "###\n"
 189            << "### ========================================================\n"
 190            << "\n"
 191            << "# This file is written by LyX, if you want to make your own\n"
 192            << "# modifications you should do them from inside LyX and save\n"
 193            << "\n";
 194
 195         for (int i = 0; i < xformCount; ++i) {
 196                 string const tag  = xformTags[i].tag;
 197                 int const colorID = xformTags[i].code;
 198                 RGBColor color;
 199
 200                 fl_getmcolor(colorID, &color.r, &color.g, &color.b);
 201
 202                 os << tag << " "
 203                    << color.r << " " << color.g << " " << color.b << "\n";
 204         }
 205
 206         return true;
 207 }