src/frontends/qt4/QVSpace.C

   1 /**
   2  * \file QVSpace.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 "QVSpace.h"
  19 #include "Qt2BC.h"
  20
  21 #include "CheckedLineEdit.h"
  22 #include "LengthCombo.h"
  23 #include "qt_helpers.h"
  24 #include "Validator.h"
  25
  26 #include "lyxrc.h" // to set the default length values
  27 #include "Spacing.h"
  28 #include "vspace.h"
  29
  30 #include "controllers/ControlVSpace.h"
  31 #include "controllers/frontend_helpers.h"
  32
  33 #include "support/lstrings.h"
  34
  35 #include <QCheckBox>
  36 #include <QCloseEvent>
  37 #include <QLineEdit>
  38 #include <QPushButton>
  39 #include <QValidator>
  40
  41
  42 using std::string;
  43
  44 namespace lyx {
  45 namespace frontend {
  46
  47
  48 /////////////////////////////////////////////////////////////////////
  49 //
  50 // QVSpaceDialog
  51 //
  52 /////////////////////////////////////////////////////////////////////
  53
  54
  55 QVSpaceDialog::QVSpaceDialog(QVSpace * form)
  56         : form_(form)
  57 {
  58         setupUi(this);
  59
  60         connect(okPB, SIGNAL(clicked()), form_, SLOT(slotOK()));
  61         connect(applyPB, SIGNAL(clicked()), form_, SLOT(slotApply()));
  62         connect(closePB, SIGNAL(clicked()), form_, SLOT(slotClose()));
  63
  64         connect(spacingCO, SIGNAL(highlighted(const QString &)),
  65                 this, SLOT(change_adaptor()));
  66         connect(valueLE, SIGNAL(textChanged(const QString &)),
  67                 this, SLOT(change_adaptor()));
  68         connect(spacingCO, SIGNAL(activated(int)),
  69                 this, SLOT(enableCustom(int)));
  70         connect(keepCB, SIGNAL(clicked()),
  71                 this, SLOT(change_adaptor()));
  72         connect(unitCO, SIGNAL(selectionChanged(LyXLength::UNIT)),
  73                 this, SLOT(change_adaptor()));
  74
  75         valueLE->setValidator(unsignedLengthValidator(valueLE));
  76 }
  77
  78
  79 void QVSpaceDialog::closeEvent(QCloseEvent * e)
  80 {
  81         form_->slotWMHide();
  82         e->accept();
  83 }
  84
  85
  86 void QVSpaceDialog::change_adaptor()
  87 {
  88         form_->changed();
  89 }
  90
  91
  92 void QVSpaceDialog::enableCustom(int selection)
  93 {
  94         bool const enable = selection == 5;
  95         valueLE->setEnabled(enable);
  96         unitCO->setEnabled(enable);
  97 }
  98
  99
 100 /////////////////////////////////////////////////////////////////////
 101 //
 102 // QVSpace
 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:
 115                 item = 0;
 116                 break;
 117         case VSpace::SMALLSKIP:
 118                 item = 1;
 119                 break;
 120         case VSpace::MEDSKIP:
 121                 item = 2;
 122                 break;
 123         case VSpace::BIGSKIP:
 124                 item = 3;
 125                 break;
 126         case VSpace::VFILL:
 127                 item = 4;
 128                 break;
 129         case VSpace::LENGTH:
 130                 item = 5;
 131                 break;
 132         }
 133         spacing->setCurrentIndex(item);
 134         keep->setChecked(space.keep());
 135
 136         LyXLength::UNIT default_unit =
 137                         (lyxrc.default_papersize > 3) ? LyXLength::CM : LyXLength::IN;
 138         bool const custom_vspace = space.kind() == VSpace::LENGTH;
 139         if (custom_vspace) {
 140                 value->setEnabled(true);
 141                 unit->setEnabled(true);
 142                 string length = space.length().asString();
 143                 lengthToWidgets(value, unit, length, default_unit);
 144         } else {
 145                 lengthToWidgets(value, unit, "", default_unit);
 146                 value->setEnabled(false);
 147                 unit->setEnabled(false);
 148         }
 149 }
 150
 151
 152 static VSpace setVSpaceFromWidgets(int spacing,
 153                             QLineEdit * value,
 154                             LengthCombo * unit,
 155                             bool keep)
 156 {
 157         VSpace space;
 158
 159         switch (spacing) {
 160         case 0:
 161                 space = VSpace(VSpace::DEFSKIP);
 162                 break;
 163         case 1:
 164                 space = VSpace(VSpace::SMALLSKIP);
 165                 break;
 166         case 2:
 167                 space = VSpace(VSpace::MEDSKIP);
 168                 break;
 169         case 3:
 170                 space = VSpace(VSpace::BIGSKIP);
 171                 break;
 172         case 4:
 173                 space = VSpace(VSpace::VFILL);
 174                 break;
 175         case 5:
 176                 space = VSpace(LyXGlueLength(widgetsToLength(value, unit)));
 177                 break;
 178         }
 179
 180         space.setKeep(keep);
 181         return space;
 182 }
 183
 184
 185 typedef QController<ControlVSpace, QView<QVSpaceDialog> > VSpaceBase;
 186
 187 QVSpace::QVSpace(Dialog & parent)
 188         : VSpaceBase(parent, _("Vertical Space Settings"))
 189 {}
 190
 191
 192 void QVSpace::build_dialog()
 193 {
 194         // the tabbed folder
 195         dialog_.reset(new QVSpaceDialog(this));
 196
 197         // Manage the ok, apply, restore and cancel/close buttons
 198         bcview().setOK(dialog_->okPB);
 199         bcview().setApply(dialog_->applyPB);
 200         bcview().setCancel(dialog_->closePB);
 201
 202         // disable for read-only documents
 203         bcview().addReadOnly(dialog_->spacingCO);
 204         bcview().addReadOnly(dialog_->valueLE);
 205         bcview().addReadOnly(dialog_->unitCO);
 206         bcview().addReadOnly(dialog_->keepCB);
 207
 208         // initialize the length validator
 209         addCheckedLineEdit(bcview(), dialog_->valueLE, dialog_->valueL);
 210
 211         // remove the %-items from the unit choice
 212         dialog_->unitCO->noPercents();
 213 }
 214
 215
 216 void QVSpace::apply()
 217 {
 218         // spacing
 219         // If a vspace choice is "Length" but there's no text in
 220         // the input field, do not insert a vspace at all.
 221         if (dialog_->spacingCO->currentIndex() == 5
 222             && dialog_->valueLE->text().isEmpty())
 223                 return;
 224
 225         VSpace const space =
 226                 setVSpaceFromWidgets(dialog_->spacingCO->currentIndex(),
 227                                      dialog_->valueLE,
 228                                      dialog_->unitCO,
 229                                      dialog_->keepCB->isChecked());
 230
 231         controller().params() = space;
 232 }
 233
 234
 235 void QVSpace::update_contents()
 236 {
 237         setWidgetsFromVSpace(controller().params(),
 238                              dialog_->spacingCO,
 239                              dialog_->valueLE,
 240                              dialog_->unitCO,
 241                              dialog_->keepCB);
 242 }
 243
 244 } // namespace frontend
 245 } // namespace lyx
 246
 247
 248 #include "QVSpace_moc.cpp"