src/frontends/qt2/qt_helpers.C

   1 /**
   2  * \file qt_helpers.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Dekel Tsur
   7  *
   8  * Full author contact details are available in file CREDITS
   9  */
  10
  11 #include <config.h>
  12
  13 #ifdef __GNUG__
  14 #pragma implementation
  15 #endif
  16
  17 #include "support/lstrings.h"
  18
  19 #include "qt_helpers.h"
  20
  21 #include "lengthcombo.h"
  22
  23 #include <qglobal.h>
  24 #include <qlineedit.h>
  25
  26 using std::pair;
  27 using std::make_pair;
  28
  29 string makeFontName(string const & family, string const & foundry)
  30 {
  31         if (foundry.empty())
  32                 return family;
  33 #if QT_VERSION  >= 300
  34         return family + " [" + foundry + ']';
  35 #else
  36         return foundry + '-' + family;
  37 #endif
  38 }
  39
  40
  41 pair<string,string> parseFontName(string const & name)
  42 {
  43 #if QT_VERSION  >= 300
  44         string::size_type const idx = name.find('[');
  45         if (idx == string::npos || idx == 0)
  46                 return make_pair(name, string());
  47         return make_pair(name.substr(0, idx - 1),
  48                          name.substr(idx + 1, name.size() - idx - 2));
  49 #else
  50         string::size_type const idx = name.find('-');
  51         if (idx == string::npos || idx == 0)
  52                 return make_pair(name, string());
  53         return make_pair(name.substr(idx + 1),
  54                          name.substr(0, idx));
  55 #endif
  56 }
  57
  58
  59 string widgetsToLength(QLineEdit const * input, LengthCombo const * combo)
  60 {
  61         QString length = input->text();
  62         if (length.isEmpty())
  63                 return string();
  64
  65         // don't return unit-from-choice if the input(field) contains a unit
  66         if (isValidGlueLength(length.latin1()))
  67                 return length.latin1();
  68
  69         LyXLength::UNIT unit = combo->currentLengthItem();
  70
  71         return LyXLength(length.toDouble(), unit).asString();
  72 }
  73
  74
  75 void lengthToWidgets(QLineEdit * input, LengthCombo * combo,
  76         string const & len, LyXLength::UNIT defaultUnit)
  77 {
  78         if (len.empty()) {
  79                 // no length (UNIT_NONE)
  80                 combo->setCurrentItem(defaultUnit);
  81                 input->setText("");
  82         } else {
  83                 combo->setCurrentItem(LyXLength(len).unit());
  84                 input->setText(tostr(LyXLength(len).value()).c_str());
  85         }
  86 }