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 (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(has_activated(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::has_activated(int)
  49 {
  50   // emit signal
  51         selectionChanged(currentLengthItem());
  52 }
  53
  54
  55 void LengthCombo::setCurrentItem(lyx::Length::UNIT unit)
  56 {
  57         QString const val = lyx::toqstr(lyx::stringFromUnit(unit));
  58         int num = QComboBox::count();
  59         for (int i = 0; i < num; i++) {
  60                 if (QComboBox::itemData(i).toString() == val) {
  61                         QComboBox::setCurrentIndex(i);
  62                         break;
  63                 }
  64         }
  65 }
  66
  67
  68 void LengthCombo::setCurrentItem(int item)
  69 {
  70         QComboBox::setCurrentIndex(item);
  71 }
  72
  73
  74 void LengthCombo::setEnabled(bool b)
  75 {
  76         QComboBox::setEnabled(b);
  77 }
  78
  79
  80 void LengthCombo::noPercents()
  81 {
  82         int num = QComboBox::count();
  83         for (int i = 0; i < num; i++) {
  84                 if (QComboBox::itemData(i).toString().contains('%')) {
  85                         QComboBox::removeItem(i);
  86                         --i;
  87                         --num;
  88                 }
  89         }
  90 }
  91
  92
  93 void LengthCombo::removeItem(lyx::Length::UNIT unit)
  94 {
  95         QString const val = lyx::toqstr(lyx::stringFromUnit(unit));
  96         int num = QComboBox::count();
  97         for (int i = 0; i < num; i++) {
  98                 if (QComboBox::itemData(i).toString() == val) {
  99                         QComboBox::removeItem(i);
 100                         break;
 101                 }
 102         }
 103 }
 104
 105
 106 void LengthCombo::removeItem(int item)
 107 {
 108         QComboBox::removeItem(item);
 109 }
 110
 111
 112 void LengthCombo::addItem(lyx::Length::UNIT unit)
 113 {
 114         QString const val = lyx::toqstr(lyx::stringFromUnit(unit));
 115         int num = QComboBox::count();
 116         for (int i = 0; i < num; i++) {
 117                 if (QComboBox::itemData(i).toString() == val) {
 118                         // already there, nothing to do
 119                         return;
 120                 }
 121         }
 122         insertItem(int(unit), lyx::qt_(lyx::unit_name_gui[int(unit)]),
 123                    lyx::toqstr(lyx::unit_name[int(unit)]));
 124 }
 125
 126
 127 void LengthCombo::addItem(QString const item)
 128 {
 129         QComboBox::addItem(item);
 130 }
 131
 132 #include "moc_LengthCombo.cpp"