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
  28 #include "insets/InsetVSpace.h"
  29
  30 #include "support/gettext.h"
  31 #include "support/lstrings.h"
  32
  33 #include <QCheckBox>
  34 #include <QLineEdit>
  35 #include <QPushButton>
  36 #include <QValidator>
  37
  38 using namespace std;
  39
  40 namespace lyx {
  41 namespace frontend {
  42
  43 GuiVSpace::GuiVSpace(GuiView & lv)
  44         : GuiDialog(lv, "vspace", qt_("Vertical Space Settings"))
  45 {
  46         setupUi(this);
  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::change_adaptor()
  86 {
  87         changed();
  88 }
  89
  90
  91 void GuiVSpace::enableCustom(int selection)
  92 {
  93         bool const enable = selection == 5;
  94         valueLE->setEnabled(enable);
  95         unitCO->setEnabled(enable);
  96 }
  97
  98
  99 static void setWidgetsFromVSpace(VSpace const & space,
 100                           QComboBox * spacing,
 101                           QLineEdit * value,
 102                           LengthCombo * unit,
 103                           QCheckBox * keep)
 104 {
 105         int item = 0;
 106         switch (space.kind()) {
 107                 case VSpace::DEFSKIP:   item = 0; break;
 108                 case VSpace::SMALLSKIP: item = 1; break;
 109                 case VSpace::MEDSKIP:   item = 2; break;
 110                 case VSpace::BIGSKIP:   item = 3; break;
 111                 case VSpace::VFILL:     item = 4; break;
 112                 case VSpace::LENGTH:    item = 5; break;
 113         }
 114         spacing->setCurrentIndex(item);
 115         keep->setChecked(space.keep());
 116
 117         Length::UNIT default_unit =
 118                         (lyxrc.default_papersize > 3) ? Length::CM : Length::IN;
 119         bool const custom_vspace = space.kind() == VSpace::LENGTH;
 120         if (custom_vspace) {
 121                 value->setEnabled(true);
 122                 unit->setEnabled(true);
 123                 string length = space.length().asString();
 124                 lengthToWidgets(value, unit, length, default_unit);
 125         } else {
 126                 lengthToWidgets(value, unit, "", default_unit);
 127                 value->setEnabled(false);
 128                 unit->setEnabled(false);
 129         }
 130 }
 131
 132
 133 static VSpace setVSpaceFromWidgets(int spacing,
 134         QLineEdit * value, LengthCombo * unit, bool keep)
 135 {
 136         VSpace space;
 137
 138         switch (spacing) {
 139                 case 0: space = VSpace(VSpace::DEFSKIP); break;
 140                 case 1: space = VSpace(VSpace::SMALLSKIP); break;
 141                 case 2: space = VSpace(VSpace::MEDSKIP); break;
 142                 case 3: space = VSpace(VSpace::BIGSKIP); break;
 143                 case 4: space = VSpace(VSpace::VFILL); break;
 144                 case 5: space = VSpace(GlueLength(widgetsToLength(value, unit))); break;
 145         }
 146
 147         space.setKeep(keep);
 148         return space;
 149 }
 150
 151
 152 void GuiVSpace::applyView()
 153 {
 154         // If a vspace choice is "Length" but there's no text in
 155         // the input field, do not insert a vspace at all.
 156         if (spacingCO->currentIndex() == 5 && valueLE->text().isEmpty())
 157                 return;
 158
 159         params_ = setVSpaceFromWidgets(spacingCO->currentIndex(),
 160                         valueLE, unitCO, keepCB->isChecked());
 161 }
 162
 163
 164 void GuiVSpace::updateContents()
 165 {
 166         setWidgetsFromVSpace(params_, spacingCO, valueLE, unitCO, keepCB);
 167 }
 168
 169
 170 bool GuiVSpace::initialiseParams(string const & data)
 171 {
 172         InsetVSpace::string2params(data, params_);
 173         setButtonsValid(true);
 174         return true;
 175 }
 176
 177
 178 void GuiVSpace::clearParams()
 179 {
 180         params_ = VSpace();
 181 }
 182
 183
 184 void GuiVSpace::dispatchParams()
 185 {
 186         dispatch(FuncRequest(getLfun(), InsetVSpace::params2string(params_)));
 187 }
 188
 189
 190 Dialog * createGuiVSpace(GuiView & lv) { return new GuiVSpace(lv); }
 191
 192
 193 } // namespace frontend
 194 } // namespace lyx
 195
 196
 197 #include "GuiVSpace_moc.cpp"