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 "VSpace.h"
  27
  28 #include "ControlVSpace.h"
  29 #include "frontend_helpers.h"
  30
  31 #include "support/lstrings.h"
  32
  33 #include <QCheckBox>
  34 #include <QCloseEvent>
  35 #include <QLineEdit>
  36 #include <QPushButton>
  37 #include <QValidator>
  38
  39
  40 using std::string;
  41
  42 namespace lyx {
  43 namespace frontend {
  44
  45
  46 /////////////////////////////////////////////////////////////////////
  47 //
  48 // GuiVSpaceDialog
  49 //
  50 /////////////////////////////////////////////////////////////////////
  51
  52
  53 GuiVSpaceDialog::GuiVSpaceDialog(GuiVSpace * form)
  54         : form_(form)
  55 {
  56         setupUi(this);
  57
  58         connect(okPB, SIGNAL(clicked()), form_, SLOT(slotOK()));
  59         connect(applyPB, SIGNAL(clicked()), form_, SLOT(slotApply()));
  60         connect(closePB, SIGNAL(clicked()), form_, SLOT(slotClose()));
  61
  62         connect(spacingCO, SIGNAL(highlighted(const QString &)),
  63                 this, SLOT(change_adaptor()));
  64         connect(valueLE, SIGNAL(textChanged(const QString &)),
  65                 this, SLOT(change_adaptor()));
  66         connect(spacingCO, SIGNAL(activated(int)),
  67                 this, SLOT(enableCustom(int)));
  68         connect(keepCB, SIGNAL(clicked()),
  69                 this, SLOT(change_adaptor()));
  70         connect(unitCO, SIGNAL(selectionChanged(lyx::Length::UNIT)),
  71                 this, SLOT(change_adaptor()));
  72
  73         valueLE->setValidator(unsignedLengthValidator(valueLE));
  74 }
  75
  76
  77 void GuiVSpaceDialog::closeEvent(QCloseEvent * e)
  78 {
  79         form_->slotWMHide();
  80         e->accept();
  81 }
  82
  83
  84 void GuiVSpaceDialog::change_adaptor()
  85 {
  86         form_->changed();
  87 }
  88
  89
  90 void GuiVSpaceDialog::enableCustom(int selection)
  91 {
  92         bool const enable = selection == 5;
  93         valueLE->setEnabled(enable);
  94         unitCO->setEnabled(enable);
  95 }
  96
  97
  98 /////////////////////////////////////////////////////////////////////
  99 //
 100 // GuiVSpace
 101 //
 102 /////////////////////////////////////////////////////////////////////
 103
 104 static void setWidgetsFromVSpace(VSpace const & space,
 105                           QComboBox * spacing,
 106                           QLineEdit * value,
 107                           LengthCombo * unit,
 108                           QCheckBox * keep)
 109 {
 110         int item = 0;
 111         switch (space.kind()) {
 112         case VSpace::DEFSKIP:
 113                 item = 0;
 114                 break;
 115         case VSpace::SMALLSKIP:
 116                 item = 1;
 117                 break;
 118         case VSpace::MEDSKIP:
 119                 item = 2;
 120                 break;
 121         case VSpace::BIGSKIP:
 122                 item = 3;
 123                 break;
 124         case VSpace::VFILL:
 125                 item = 4;
 126                 break;
 127         case VSpace::LENGTH:
 128                 item = 5;
 129                 break;
 130         }
 131         spacing->setCurrentIndex(item);
 132         keep->setChecked(space.keep());
 133
 134         Length::UNIT default_unit =
 135                         (lyxrc.default_papersize > 3) ? Length::CM : Length::IN;
 136         bool const custom_vspace = space.kind() == VSpace::LENGTH;
 137         if (custom_vspace) {
 138                 value->setEnabled(true);
 139                 unit->setEnabled(true);
 140                 string length = space.length().asString();
 141                 lengthToWidgets(value, unit, length, default_unit);
 142         } else {
 143                 lengthToWidgets(value, unit, "", default_unit);
 144                 value->setEnabled(false);
 145                 unit->setEnabled(false);
 146         }
 147 }
 148
 149
 150 static VSpace setVSpaceFromWidgets(int spacing,
 151                             QLineEdit * value,
 152                             LengthCombo * unit,
 153                             bool keep)
 154 {
 155         VSpace space;
 156
 157         switch (spacing) {
 158         case 0:
 159                 space = VSpace(VSpace::DEFSKIP);
 160                 break;
 161         case 1:
 162                 space = VSpace(VSpace::SMALLSKIP);
 163                 break;
 164         case 2:
 165                 space = VSpace(VSpace::MEDSKIP);
 166                 break;
 167         case 3:
 168                 space = VSpace(VSpace::BIGSKIP);
 169                 break;
 170         case 4:
 171                 space = VSpace(VSpace::VFILL);
 172                 break;
 173         case 5:
 174                 space = VSpace(GlueLength(widgetsToLength(value, unit)));
 175                 break;
 176         }
 177
 178         space.setKeep(keep);
 179         return space;
 180 }
 181
 182
 183 GuiVSpace::GuiVSpace(GuiDialog & parent)
 184         : GuiView<GuiVSpaceDialog>(parent, _("Vertical Space Settings"))
 185 {}
 186
 187
 188 void GuiVSpace::build_dialog()
 189 {
 190         // the tabbed folder
 191         dialog_.reset(new GuiVSpaceDialog(this));
 192
 193         // Manage the ok, apply, restore and cancel/close buttons
 194         bc().setOK(dialog_->okPB);
 195         bc().setApply(dialog_->applyPB);
 196         bc().setCancel(dialog_->closePB);
 197
 198         // disable for read-only documents
 199         bc().addReadOnly(dialog_->spacingCO);
 200         bc().addReadOnly(dialog_->valueLE);
 201         bc().addReadOnly(dialog_->unitCO);
 202         bc().addReadOnly(dialog_->keepCB);
 203
 204         // initialize the length validator
 205         bc().addCheckedLineEdit(dialog_->valueLE, dialog_->valueL);
 206
 207         // remove the %-items from the unit choice
 208         dialog_->unitCO->noPercents();
 209 }
 210
 211
 212 void GuiVSpace::applyView()
 213 {
 214         // spacing
 215         // If a vspace choice is "Length" but there's no text in
 216         // the input field, do not insert a vspace at all.
 217         if (dialog_->spacingCO->currentIndex() == 5
 218             && dialog_->valueLE->text().isEmpty())
 219                 return;
 220
 221         VSpace const space =
 222                 setVSpaceFromWidgets(dialog_->spacingCO->currentIndex(),
 223                                      dialog_->valueLE,
 224                                      dialog_->unitCO,
 225                                      dialog_->keepCB->isChecked());
 226
 227         controller().params() = space;
 228 }
 229
 230
 231 void GuiVSpace::update_contents()
 232 {
 233         setWidgetsFromVSpace(controller().params(),
 234                              dialog_->spacingCO,
 235                              dialog_->valueLE,
 236                              dialog_->unitCO,
 237                              dialog_->keepCB);
 238 }
 239
 240 } // namespace frontend
 241 } // namespace lyx
 242
 243
 244 #include "GuiVSpace_moc.cpp"