src/frontends/qt4/GuiVSpace.cpp

   1 /**
   2  * \file GuiVSpace.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author André Pönitz
   7  * \author Jürgen Vigna
   8  * \author Rob Lahaye
   9  * \author Angus Leeming
  10  * \author Edwin Leuven
  11  * \author Jürgen Spitzmüller
  12  *
  13  * Full author contact details are available in file CREDITS.
  14  */
  15
  16 #include <config.h>
  17
  18 #include "GuiVSpace.h"
  19
  20 #include "LengthCombo.h"
  21 #include "qt_helpers.h"
  22 #include "Validator.h"
  23
  24 #include "Spacing.h"
  25 #include "FuncRequest.h"
  26
  27 #include "insets/InsetVSpace.h"
  28
  29 #include "support/gettext.h"
  30 #include "support/lstrings.h"
  31
  32 #include <QCheckBox>
  33 #include <QLineEdit>
  34 #include <QPushButton>
  35 #include <QValidator>
  36
  37 using namespace std;
  38
  39 namespace lyx {
  40 namespace frontend {
  41
  42 GuiVSpace::GuiVSpace(GuiView & lv)
  43         : GuiDialog(lv, "vspace", qt_("Vertical Space Settings"))
  44 {
  45         setupUi(this);
  46
  47         connect(okPB, SIGNAL(clicked()), this, SLOT(slotOK()));
  48         connect(applyPB, SIGNAL(clicked()), this, SLOT(slotApply()));
  49         connect(closePB, SIGNAL(clicked()), this, SLOT(slotClose()));
  50
  51         connect(spacingCO, SIGNAL(highlighted(QString)),
  52                 this, SLOT(change_adaptor()));
  53         connect(valueLE, SIGNAL(textChanged(QString)),
  54                 this, SLOT(change_adaptor()));
  55         connect(spacingCO, SIGNAL(activated(int)),
  56                 this, SLOT(enableCustom(int)));
  57         connect(keepCB, SIGNAL(clicked()),
  58                 this, SLOT(change_adaptor()));
  59         connect(unitCO, SIGNAL(selectionChanged(lyx::Length::UNIT)),
  60                 this, SLOT(change_adaptor()));
  61
  62         valueLE->setValidator(unsignedGlueLengthValidator(valueLE));
  63
  64         // Manage the ok, apply, restore and cancel/close buttons
  65         bc().setPolicy(ButtonPolicy::OkApplyCancelReadOnlyPolicy);
  66         bc().setOK(okPB);
  67         bc().setApply(applyPB);
  68         bc().setCancel(closePB);
  69
  70         // disable for read-only documents
  71         bc().addReadOnly(spacingCO);
  72         bc().addReadOnly(valueLE);
  73         bc().addReadOnly(unitCO);
  74         bc().addReadOnly(keepCB);
  75
  76         // initialize the length validator
  77         bc().addCheckedLineEdit(valueLE, valueL);
  78 }
  79
  80
  81 void GuiVSpace::change_adaptor()
  82 {
  83         changed();
  84 }
  85
  86
  87 void GuiVSpace::enableCustom(int selection)
  88 {
  89         bool const enable = selection == 5;
  90         valueLE->setEnabled(enable);
  91         unitCO->setEnabled(enable);
  92 }
  93
  94
  95 static void setWidgetsFromVSpace(VSpace const & space,
  96                           QComboBox * spacing,
  97                           QLineEdit * value,
  98                           LengthCombo * unit,
  99                           QCheckBox * keep)
 100 {
 101         int item = 0;
 102         switch (space.kind()) {
 103                 case VSpace::DEFSKIP:   item = 0; break;
 104                 case VSpace::SMALLSKIP: item = 1; break;
 105                 case VSpace::MEDSKIP:   item = 2; break;
 106                 case VSpace::BIGSKIP:   item = 3; break;
 107                 case VSpace::VFILL:     item = 4; break;
 108                 case VSpace::LENGTH:    item = 5; break;
 109         }
 110         spacing->setCurrentIndex(item);
 111         keep->setChecked(space.keep());
 112
 113         Length::UNIT const default_unit = Length::defaultUnit();
 114         bool const custom_vspace = space.kind() == VSpace::LENGTH;
 115         if (custom_vspace) {
 116                 value->setEnabled(true);
 117                 unit->setEnabled(true);
 118                 string length = space.length().asString();
 119                 lengthToWidgets(value, unit, length, default_unit);
 120         } else {
 121                 lengthToWidgets(value, unit, "", default_unit);
 122                 value->setEnabled(false);
 123                 unit->setEnabled(false);
 124         }
 125 }
 126
 127
 128 static VSpace setVSpaceFromWidgets(int spacing,
 129         QLineEdit * value, LengthCombo * unit, bool keep)
 130 {
 131         VSpace space;
 132
 133         switch (spacing) {
 134                 case 0: space = VSpace(VSpace::DEFSKIP); break;
 135                 case 1: space = VSpace(VSpace::SMALLSKIP); break;
 136                 case 2: space = VSpace(VSpace::MEDSKIP); break;
 137                 case 3: space = VSpace(VSpace::BIGSKIP); break;
 138                 case 4: space = VSpace(VSpace::VFILL); break;
 139                 case 5: space = VSpace(GlueLength(widgetsToLength(value, unit))); break;
 140         }
 141
 142         space.setKeep(keep);
 143         return space;
 144 }
 145
 146
 147 void GuiVSpace::applyView()
 148 {
 149         // If a vspace choice is "Length" but there's no text in
 150         // the input field, do not insert a vspace at all.
 151         if (spacingCO->currentIndex() == 5 && valueLE->text().isEmpty())
 152                 return;
 153
 154         params_ = setVSpaceFromWidgets(spacingCO->currentIndex(),
 155                         valueLE, unitCO, keepCB->isChecked());
 156 }
 157
 158
 159 void GuiVSpace::updateContents()
 160 {
 161         setWidgetsFromVSpace(params_, spacingCO, valueLE, unitCO, keepCB);
 162 }
 163
 164
 165 bool GuiVSpace::initialiseParams(string const & data)
 166 {
 167         InsetVSpace::string2params(data, params_);
 168         setButtonsValid(true);
 169         return true;
 170 }
 171
 172
 173 void GuiVSpace::clearParams()
 174 {
 175         params_ = VSpace();
 176 }
 177
 178
 179 void GuiVSpace::dispatchParams()
 180 {
 181         dispatch(FuncRequest(getLfun(), InsetVSpace::params2string(params_)));
 182 }
 183
 184
 185 Dialog * createGuiVSpace(GuiView & lv) { return new GuiVSpace(lv); }
 186
 187
 188 } // namespace frontend
 189 } // namespace lyx
 190
 191
 192 #include "moc_GuiVSpace.cpp"