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 "ControlVSpace.h"
  21 #include "LengthCombo.h"
  22 #include "qt_helpers.h"
  23 #include "Validator.h"
  24
  25 #include "LyXRC.h" // to set the default length values
  26 #include "Spacing.h"
  27 #include "VSpace.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 GuiVSpaceDialog::GuiVSpaceDialog(LyXView & lv)
  44         : GuiDialog(lv, "vspace")
  45 {
  46         setupUi(this);
  47         setViewTitle(_("Vertical Space Settings"));
  48         setController(new ControlVSpace(*this));
  49
  50         connect(okPB, SIGNAL(clicked()), this, SLOT(slotOK()));
  51         connect(applyPB, SIGNAL(clicked()), this, SLOT(slotApply()));
  52         connect(closePB, SIGNAL(clicked()), this, SLOT(slotClose()));
  53
  54         connect(spacingCO, SIGNAL(highlighted(const QString &)),
  55                 this, SLOT(change_adaptor()));
  56         connect(valueLE, SIGNAL(textChanged(const QString &)),
  57                 this, SLOT(change_adaptor()));
  58         connect(spacingCO, SIGNAL(activated(int)),
  59                 this, SLOT(enableCustom(int)));
  60         connect(keepCB, SIGNAL(clicked()),
  61                 this, SLOT(change_adaptor()));
  62         connect(unitCO, SIGNAL(selectionChanged(lyx::Length::UNIT)),
  63                 this, SLOT(change_adaptor()));
  64
  65         valueLE->setValidator(unsignedLengthValidator(valueLE));
  66
  67         // Manage the ok, apply, restore and cancel/close buttons
  68         bc().setPolicy(ButtonPolicy::OkApplyCancelReadOnlyPolicy);
  69         bc().setOK(okPB);
  70         bc().setApply(applyPB);
  71         bc().setCancel(closePB);
  72
  73         // disable for read-only documents
  74         bc().addReadOnly(spacingCO);
  75         bc().addReadOnly(valueLE);
  76         bc().addReadOnly(unitCO);
  77         bc().addReadOnly(keepCB);
  78
  79         // initialize the length validator
  80         bc().addCheckedLineEdit(valueLE, valueL);
  81
  82         // remove the %-items from the unit choice
  83         unitCO->noPercents();
  84 }
  85
  86
  87 ControlVSpace & GuiVSpaceDialog::controller()
  88 {
  89         return static_cast<ControlVSpace &>(GuiDialog::controller());
  90 }
  91
  92
  93 void GuiVSpaceDialog::closeEvent(QCloseEvent * e)
  94 {
  95         slotClose();
  96         e->accept();
  97 }
  98
  99
 100 void GuiVSpaceDialog::change_adaptor()
 101 {
 102         changed();
 103 }
 104
 105
 106 void GuiVSpaceDialog::enableCustom(int selection)
 107 {
 108         bool const enable = selection == 5;
 109         valueLE->setEnabled(enable);
 110         unitCO->setEnabled(enable);
 111 }
 112
 113
 114 static void setWidgetsFromVSpace(VSpace const & space,
 115                           QComboBox * spacing,
 116                           QLineEdit * value,
 117                           LengthCombo * unit,
 118                           QCheckBox * keep)
 119 {
 120         int item = 0;
 121         switch (space.kind()) {
 122                 case VSpace::DEFSKIP:   item = 0; break;
 123                 case VSpace::SMALLSKIP: item = 1; break;
 124                 case VSpace::MEDSKIP:   item = 2; break;
 125                 case VSpace::BIGSKIP:   item = 3; break;
 126                 case VSpace::VFILL:     item = 4; break;
 127                 case VSpace::LENGTH:    item = 5; break;
 128         }
 129         spacing->setCurrentIndex(item);
 130         keep->setChecked(space.keep());
 131
 132         Length::UNIT default_unit =
 133                         (lyxrc.default_papersize > 3) ? Length::CM : Length::IN;
 134         bool const custom_vspace = space.kind() == VSpace::LENGTH;
 135         if (custom_vspace) {
 136                 value->setEnabled(true);
 137                 unit->setEnabled(true);
 138                 string length = space.length().asString();
 139                 lengthToWidgets(value, unit, length, default_unit);
 140         } else {
 141                 lengthToWidgets(value, unit, "", default_unit);
 142                 value->setEnabled(false);
 143                 unit->setEnabled(false);
 144         }
 145 }
 146
 147
 148 static VSpace setVSpaceFromWidgets(int spacing,
 149         QLineEdit * value, LengthCombo * unit, bool keep)
 150 {
 151         VSpace space;
 152
 153         switch (spacing) {
 154                 case 0: space = VSpace(VSpace::DEFSKIP); break;
 155                 case 1: space = VSpace(VSpace::SMALLSKIP); break;
 156                 case 2: space = VSpace(VSpace::MEDSKIP); break;
 157                 case 3: space = VSpace(VSpace::BIGSKIP); break;
 158                 case 4: space = VSpace(VSpace::VFILL); break;
 159                 case 5: space = VSpace(GlueLength(widgetsToLength(value, unit))); break;
 160         }
 161
 162         space.setKeep(keep);
 163         return space;
 164 }
 165
 166
 167 void GuiVSpaceDialog::applyView()
 168 {
 169         // If a vspace choice is "Length" but there's no text in
 170         // the input field, do not insert a vspace at all.
 171         if (spacingCO->currentIndex() == 5 && valueLE->text().isEmpty())
 172                 return;
 173
 174         VSpace const space = setVSpaceFromWidgets(spacingCO->currentIndex(),
 175                         valueLE, unitCO, keepCB->isChecked());
 176
 177         controller().params() = space;
 178 }
 179
 180
 181 void GuiVSpaceDialog::updateContents()
 182 {
 183         setWidgetsFromVSpace(controller().params(),
 184                 spacingCO, valueLE, unitCO, keepCB);
 185 }
 186
 187 } // namespace frontend
 188 } // namespace lyx
 189
 190
 191 #include "GuiVSpace_moc.cpp"