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 std::string;
  38
  39
  40 namespace lyx {
  41 namespace frontend {
  42
  43 GuiVSpace::GuiVSpace(GuiView & lv)
  44         : GuiDialog(lv, "vspace")
  45 {
  46         setupUi(this);
  47         setViewTitle(_("Vertical Space Settings"));
  48
  49         connect(okPB, SIGNAL(clicked()), this, SLOT(slotOK()));
  50         connect(applyPB, SIGNAL(clicked()), this, SLOT(slotApply()));
  51         connect(closePB, SIGNAL(clicked()), this, SLOT(slotClose()));
  52
  53         connect(spacingCO, SIGNAL(highlighted(QString)),
  54                 this, SLOT(change_adaptor()));
  55         connect(valueLE, SIGNAL(textChanged(QString)),
  56                 this, SLOT(change_adaptor()));
  57         connect(spacingCO, SIGNAL(activated(int)),
  58                 this, SLOT(enableCustom(int)));
  59         connect(keepCB, SIGNAL(clicked()),
  60                 this, SLOT(change_adaptor()));
  61         connect(unitCO, SIGNAL(selectionChanged(lyx::Length::UNIT)),
  62                 this, SLOT(change_adaptor()));
  63
  64         valueLE->setValidator(unsignedLengthValidator(valueLE));
  65
  66         // Manage the ok, apply, restore and cancel/close buttons
  67         bc().setPolicy(ButtonPolicy::OkApplyCancelReadOnlyPolicy);
  68         bc().setOK(okPB);
  69         bc().setApply(applyPB);
  70         bc().setCancel(closePB);
  71
  72         // disable for read-only documents
  73         bc().addReadOnly(spacingCO);
  74         bc().addReadOnly(valueLE);
  75         bc().addReadOnly(unitCO);
  76         bc().addReadOnly(keepCB);
  77
  78         // initialize the length validator
  79         bc().addCheckedLineEdit(valueLE, valueL);
  80
  81         // remove the %-items from the unit choice
  82         unitCO->noPercents();
  83 }
  84
  85
  86 void GuiVSpace::closeEvent(QCloseEvent * e)
  87 {
  88         slotClose();
  89         e->accept();
  90 }
  91
  92
  93 void GuiVSpace::change_adaptor()
  94 {
  95         changed();
  96 }
  97
  98
  99 void GuiVSpace::enableCustom(int selection)
 100 {
 101         bool const enable = selection == 5;
 102         valueLE->setEnabled(enable);
 103         unitCO->setEnabled(enable);
 104 }
 105
 106
 107 static void setWidgetsFromVSpace(VSpace const & space,
 108                           QComboBox * spacing,
 109                           QLineEdit * value,
 110                           LengthCombo * unit,
 111                           QCheckBox * keep)
 112 {
 113         int item = 0;
 114         switch (space.kind()) {
 115                 case VSpace::DEFSKIP:   item = 0; break;
 116                 case VSpace::SMALLSKIP: item = 1; break;
 117                 case VSpace::MEDSKIP:   item = 2; break;
 118                 case VSpace::BIGSKIP:   item = 3; break;
 119                 case VSpace::VFILL:     item = 4; break;
 120                 case VSpace::LENGTH:    item = 5; break;
 121         }
 122         spacing->setCurrentIndex(item);
 123         keep->setChecked(space.keep());
 124
 125         Length::UNIT default_unit =
 126                         (lyxrc.default_papersize > 3) ? Length::CM : Length::IN;
 127         bool const custom_vspace = space.kind() == VSpace::LENGTH;
 128         if (custom_vspace) {
 129                 value->setEnabled(true);
 130                 unit->setEnabled(true);
 131                 string length = space.length().asString();
 132                 lengthToWidgets(value, unit, length, default_unit);
 133         } else {
 134                 lengthToWidgets(value, unit, "", default_unit);
 135                 value->setEnabled(false);
 136                 unit->setEnabled(false);
 137         }
 138 }
 139
 140
 141 static VSpace setVSpaceFromWidgets(int spacing,
 142         QLineEdit * value, LengthCombo * unit, bool keep)
 143 {
 144         VSpace space;
 145
 146         switch (spacing) {
 147                 case 0: space = VSpace(VSpace::DEFSKIP); break;
 148                 case 1: space = VSpace(VSpace::SMALLSKIP); break;
 149                 case 2: space = VSpace(VSpace::MEDSKIP); break;
 150                 case 3: space = VSpace(VSpace::BIGSKIP); break;
 151                 case 4: space = VSpace(VSpace::VFILL); break;
 152                 case 5: space = VSpace(GlueLength(widgetsToLength(value, unit))); break;
 153         }
 154
 155         space.setKeep(keep);
 156         return space;
 157 }
 158
 159
 160 void GuiVSpace::applyView()
 161 {
 162         // If a vspace choice is "Length" but there's no text in
 163         // the input field, do not insert a vspace at all.
 164         if (spacingCO->currentIndex() == 5 && valueLE->text().isEmpty())
 165                 return;
 166
 167         params_ = setVSpaceFromWidgets(spacingCO->currentIndex(),
 168                         valueLE, unitCO, keepCB->isChecked());
 169 }
 170
 171
 172 void GuiVSpace::updateContents()
 173 {
 174         setWidgetsFromVSpace(params_, spacingCO, valueLE, unitCO, keepCB);
 175 }
 176
 177
 178 bool GuiVSpace::initialiseParams(string const & data)
 179 {
 180         InsetVSpaceMailer::string2params(data, params_);
 181         setButtonsValid(true);
 182
 183         return true;
 184 }
 185
 186
 187 void GuiVSpace::clearParams()
 188 {
 189         params_ = VSpace();
 190 }
 191
 192
 193 void GuiVSpace::dispatchParams()
 194 {
 195         dispatch(FuncRequest(getLfun(), InsetVSpaceMailer::params2string(params_)));
 196 }
 197
 198
 199 Dialog * createGuiVSpace(GuiView & lv) { return new GuiVSpace(lv); }
 200
 201
 202 } // namespace frontend
 203 } // namespace lyx
 204
 205
 206 #include "GuiVSpace_moc.cpp"