src/frontends/qt4/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 "support/qstring_helpers.h"
  16
  17 #include "LengthCombo.h"
  18
  19 #include "qt_helpers.h"
  20
  21 #include <string>
  22
  23
  24 LengthCombo::LengthCombo(QWidget * parent)
  25         : QComboBox(parent)
  26 {
  27         for (int i = 0; i < lyx::num_units; i++) {
  28                 // mu does not make sense usually
  29                 // so it must be added manually, if needed
  30                 if (QString(lyx::unit_name[i]) == "mu")
  31                         continue;
  32                 QComboBox::addItem(lyx::qt_(lyx::unit_name_gui[i]),
  33                         lyx::toqstr(lyx::unit_name[i]));
  34         }
  35
  36         connect(this, SIGNAL(activated(int)),
  37                 this, SLOT(hasActivated(int)));
  38 }
  39
  40
  41 lyx::Length::UNIT LengthCombo::currentLengthItem() const
  42 {
  43         QString const val = itemData(currentIndex()).toString();
  44         return lyx::unitFromString(lyx::fromqstr(val));
  45 }
  46
  47
  48 void LengthCombo::hasActivated(int)
  49 {
  50   // emit signal
  51         selectionChanged(currentLengthItem());
  52 }
  53
  54
  55 void LengthCombo::setCurrentItem(lyx::Length::UNIT unit)
  56 {
  57         setCurrentItem(lyx::toqstr(lyx::stringFromUnit(unit)));
  58 }
  59
  60
  61 void LengthCombo::setCurrentItem(QString const item)
  62 {
  63         int num = QComboBox::count();
  64         for (int i = 0; i < num; i++) {
  65                 if (QComboBox::itemData(i).toString() == item) {
  66                         QComboBox::setCurrentIndex(i);
  67                         break;
  68                 }
  69         }
  70 }
  71
  72
  73 void LengthCombo::setCurrentItem(int item)
  74 {
  75         QComboBox::setCurrentIndex(item);
  76 }
  77
  78
  79 void LengthCombo::setEnabled(bool b)
  80 {
  81         QComboBox::setEnabled(b);
  82 }
  83
  84
  85 void LengthCombo::noPercents()
  86 {
  87         int num = QComboBox::count();
  88         for (int i = 0; i < num; i++) {
  89                 if (QComboBox::itemData(i).toString().contains('%')) {
  90                         QComboBox::removeItem(i);
  91                         --i;
  92                         --num;
  93                 }
  94         }
  95 }
  96
  97
  98 void LengthCombo::removeUnit(lyx::Length::UNIT unit)
  99 {
 100         QString const val = lyx::toqstr(lyx::stringFromUnit(unit));
 101         int num = QComboBox::count();
 102         for (int i = 0; i < num; i++) {
 103                 if (QComboBox::itemData(i).toString() == val) {
 104                         QComboBox::removeItem(i);
 105                         break;
 106                 }
 107         }
 108 }
 109
 110
 111 void LengthCombo::addUnit(lyx::Length::UNIT unit)
 112 {
 113         QString const val = lyx::toqstr(lyx::stringFromUnit(unit));
 114         int num = QComboBox::count();
 115         for (int i = 0; i < num; i++) {
 116                 if (QComboBox::itemData(i).toString() == val) {
 117                         // already there, nothing to do
 118                         return;
 119                 }
 120         }
 121         insertItem(int(unit), lyx::qt_(lyx::unit_name_gui[int(unit)]),
 122                    lyx::toqstr(lyx::unit_name[int(unit)]));
 123 }
 124
 125
 126 #include "moc_LengthCombo.cpp"