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 "LyXRC.h" // to set the default length values
  25 #include "Spacing.h"
  26 #include "FuncRequest.h"
  27 #include "insets/InsetVSpace.h"
  28
  29 #include "support/lstrings.h"
  30
  31 #include <QCheckBox>
  32 #include <QCloseEvent>
  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")
  44 {
  45         setupUi(this);
  46         setViewTitle(_("Vertical Space Settings"));
  47
  48         connect(okPB, SIGNAL(clicked()), this, SLOT(slotOK()));
  49         connect(applyPB, SIGNAL(clicked()), this, SLOT(slotApply()));
  50         connect(closePB, SIGNAL(clicked()), this, SLOT(slotClose()));
  51
  52         connect(spacingCO, SIGNAL(highlighted(QString)),
  53                 this, SLOT(change_adaptor()));
  54         connect(valueLE, SIGNAL(textChanged(QString)),
  55                 this, SLOT(change_adaptor()));
  56         connect(spacingCO, SIGNAL(activated(int)),
  57                 this, SLOT(enableCustom(int)));
  58         connect(keepCB, SIGNAL(clicked()),
  59                 this, SLOT(change_adaptor()));
  60         connect(unitCO, SIGNAL(selectionChanged(lyx::Length::UNIT)),
  61                 this, SLOT(change_adaptor()));
  62
  63         valueLE->setValidator(unsignedLengthValidator(valueLE));
  64
  65         // Manage the ok, apply, restore and cancel/close buttons
  66         bc().setPolicy(ButtonPolicy::OkApplyCancelReadOnlyPolicy);
  67         bc().setOK(okPB);
  68         bc().setApply(applyPB);
  69         bc().setCancel(closePB);
  70
  71         // disable for read-only documents
  72         bc().addReadOnly(spacingCO);
  73         bc().addReadOnly(valueLE);
  74         bc().addReadOnly(unitCO);
  75         bc().addReadOnly(keepCB);
  76
  77         // initialize the length validator
  78         bc().addCheckedLineEdit(valueLE, valueL);
  79
  80         // remove the %-items from the unit choice
  81         unitCO->noPercents();
  82 }
  83
  84
  85 void GuiVSpace::closeEvent(QCloseEvent * e)
  86 {
  87         slotClose();
  88         e->accept();
  89 }
  90
  91
  92 void GuiVSpace::change_adaptor()
  93 {
  94         changed();
  95 }
  96
  97
  98 void GuiVSpace::enableCustom(int selection)
  99 {
 100         bool const enable = selection == 5;
 101         valueLE->setEnabled(enable);
 102         unitCO->setEnabled(enable);
 103 }
 104
 105
 106 static void setWidgetsFromVSpace(VSpace const & space,
 107                           QComboBox * spacing,
 108                           QLineEdit * value,
 109                           LengthCombo * unit,
 110                           QCheckBox * keep)
 111 {
 112         int item = 0;
 113         switch (space.kind()) {
 114                 case VSpace::DEFSKIP:   item = 0; break;
 115                 case VSpace::SMALLSKIP: item = 1; break;
 116                 case VSpace::MEDSKIP:   item = 2; break;
 117                 case VSpace::BIGSKIP:   item = 3; break;
 118                 case VSpace::VFILL:     item = 4; break;
 119                 case VSpace::LENGTH:    item = 5; break;
 120         }
 121         spacing->setCurrentIndex(item);
 122         keep->setChecked(space.keep());
 123
 124         Length::UNIT default_unit =
 125                         (lyxrc.default_papersize > 3) ? Length::CM : Length::IN;
 126         bool const custom_vspace = space.kind() == VSpace::LENGTH;
 127         if (custom_vspace) {
 128                 value->setEnabled(true);
 129                 unit->setEnabled(true);
 130                 string length = space.length().asString();
 131                 lengthToWidgets(value, unit, length, default_unit);
 132         } else {
 133                 lengthToWidgets(value, unit, "", default_unit);
 134                 value->setEnabled(false);
 135                 unit->setEnabled(false);
 136         }
 137 }
 138
 139
 140 static VSpace setVSpaceFromWidgets(int spacing,
 141         QLineEdit * value, LengthCombo * unit, bool keep)
 142 {
 143         VSpace space;
 144
 145         switch (spacing) {
 146                 case 0: space = VSpace(VSpace::DEFSKIP); break;
 147                 case 1: space = VSpace(VSpace::SMALLSKIP); break;
 148                 case 2: space = VSpace(VSpace::MEDSKIP); break;
 149                 case 3: space = VSpace(VSpace::BIGSKIP); break;
 150                 case 4: space = VSpace(VSpace::VFILL); break;
 151                 case 5: space = VSpace(GlueLength(widgetsToLength(value, unit))); break;
 152         }
 153
 154         space.setKeep(keep);
 155         return space;
 156 }
 157
 158
 159 void GuiVSpace::applyView()
 160 {
 161         // If a vspace choice is "Length" but there's no text in
 162         // the input field, do not insert a vspace at all.
 163         if (spacingCO->currentIndex() == 5 && valueLE->text().isEmpty())
 164                 return;
 165
 166         params_ = setVSpaceFromWidgets(spacingCO->currentIndex(),
 167                         valueLE, unitCO, keepCB->isChecked());
 168 }
 169
 170
 171 void GuiVSpace::updateContents()
 172 {
 173         setWidgetsFromVSpace(params_, spacingCO, valueLE, unitCO, keepCB);
 174 }
 175
 176
 177 bool GuiVSpace::initialiseParams(string const & data)
 178 {
 179         InsetVSpaceMailer::string2params(data, params_);
 180         setButtonsValid(true);
 181
 182         return true;
 183 }
 184
 185
 186 void GuiVSpace::clearParams()
 187 {
 188         params_ = VSpace();
 189 }
 190
 191
 192 void GuiVSpace::dispatchParams()
 193 {
 194         dispatch(FuncRequest(getLfun(), InsetVSpaceMailer::params2string(params_)));
 195 }
 196
 197
 198 Dialog * createGuiVSpace(GuiView & lv) { return new GuiVSpace(lv); }
 199
 200
 201 } // namespace frontend
 202 } // namespace lyx
 203
 204
 205 #include "GuiVSpace_moc.cpp"