src/frontends/qt/LengthCombo.cpp

   1 /**
   2  * \file LengthCombo.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author John Levon
   7  * \author Jürgen Spitzmüller
   8  * \author Herbert Voß
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #include <config.h>
  14
  15 #include "LengthCombo.h"
  16
  17 #include "support/qstring_helpers.h"
  18
  19 #include "qt_helpers.h"
  20
  21 #include <string>
  22
  23
  24 namespace lyx {
  25 namespace frontend {
  26
  27 LengthCombo::LengthCombo(QWidget * parent)
  28         : QComboBox(parent)
  29 {
  30         for (int i = 0; i < lyx::num_units; i++) {
  31                 // mu does not make sense usually
  32                 // so it must be added manually, if needed
  33                 if (QLatin1String(lyx::unit_name[i]) == "mu")
  34                         continue;
  35                 QComboBox::addItem(lyx::qt_(lyx::unit_name_gui[i]),
  36                         lyx::toqstr(lyx::unit_name[i]));
  37         }
  38
  39         connect(this, SIGNAL(activated(int)),
  40                 this, SLOT(hasActivated(int)));
  41 }
  42
  43
  44 lyx::Length::UNIT LengthCombo::currentLengthItem() const
  45 {
  46         QString const val = itemData(currentIndex()).toString();
  47         return lyx::unitFromString(lyx::fromqstr(val));
  48 }
  49
  50
  51 void LengthCombo::hasActivated(int)
  52 {
  53   // emit signal
  54         selectionChanged(currentLengthItem());
  55 }
  56
  57
  58 void LengthCombo::setCurrentItem(lyx::Length::UNIT unit)
  59 {
  60         setCurrentItem(lyx::toqstr(lyx::stringFromUnit(unit)));
  61 }
  62
  63
  64 void LengthCombo::setCurrentItem(QString const & item)
  65 {
  66         int num = QComboBox::count();
  67         for (int i = 0; i < num; i++) {
  68                 if (QComboBox::itemData(i).toString() == item) {
  69                         QComboBox::setCurrentIndex(i);
  70                         break;
  71                 }
  72         }
  73 }
  74
  75
  76 void LengthCombo::setCurrentItem(int item)
  77 {
  78         QComboBox::setCurrentIndex(item);
  79 }
  80
  81
  82 void LengthCombo::setEnabled(bool b)
  83 {
  84         QComboBox::setEnabled(b);
  85 }
  86
  87
  88 void LengthCombo::noPercents()
  89 {
  90         int num = QComboBox::count();
  91         for (int i = 0; i < num; i++) {
  92                 if (QComboBox::itemData(i).toString().contains('%')) {
  93                         QComboBox::removeItem(i);
  94                         --i;
  95                         --num;
  96                 }
  97         }
  98 }
  99
 100
 101 void LengthCombo::removeFontDependent()
 102 {
 103         removeUnit(Length::EM);
 104         removeUnit(Length::EX);
 105         removeUnit(Length::MU);
 106 }
 107
 108
 109 void LengthCombo::removeUnit(lyx::Length::UNIT unit)
 110 {
 111         QString const val = lyx::toqstr(lyx::stringFromUnit(unit));
 112         int num = QComboBox::count();
 113         for (int i = 0; i < num; i++) {
 114                 if (QComboBox::itemData(i).toString() == val) {
 115                         QComboBox::removeItem(i);
 116                         break;
 117                 }
 118         }
 119 }
 120
 121
 122 void LengthCombo::addUnit(lyx::Length::UNIT unit)
 123 {
 124         QString const val = lyx::toqstr(lyx::stringFromUnit(unit));
 125         int num = QComboBox::count();
 126         for (int i = 0; i < num; i++) {
 127                 if (QComboBox::itemData(i).toString() == val) {
 128                         // already there, nothing to do
 129                         return;
 130                 }
 131         }
 132         insertItem(int(unit), lyx::qt_(lyx::unit_name_gui[int(unit)]),
 133                    lyx::toqstr(lyx::unit_name[int(unit)]));
 134 }
 135
 136 } // namespace frontend
 137 } // namespace lyx
 138
 139 #include "moc_LengthCombo.cpp"