src/frontends/qt2/QVSpace.C

   1 /**
   2  * \file QVSpace.C
   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 "debug.h"
  19 #include "ControlVSpace.h"
  20 #include "QVSpace.h"
  21 #include "QVSpaceDialog.h"
  22 #include "Qt2BC.h"
  23 #include "lyxrc.h" // to set the default length values
  24 #include "qt_helpers.h"
  25 #include "helper_funcs.h"
  26
  27 #include "Spacing.h"
  28 #include "vspace.h"
  29
  30 #include "support/lstrings.h"
  31 #include "support/tostr.h"
  32
  33 #include <qcombobox.h>
  34 #include <qlineedit.h>
  35 #include <qcheckbox.h>
  36 #include <qpushbutton.h>
  37 #include "lengthcombo.h"
  38
  39
  40 using std::string;
  41
  42
  43 namespace {
  44
  45 void setWidgetsFromVSpace(VSpace const & space,
  46                           QComboBox * spacing,
  47                           QLineEdit * value,
  48                           LengthCombo * unit,
  49                           QCheckBox * keep)
  50 {
  51         int item = 0;
  52         switch (space.kind()) {
  53         case VSpace::DEFSKIP:
  54                 item = 0;
  55                 break;
  56         case VSpace::SMALLSKIP:
  57                 item = 1;
  58                 break;
  59         case VSpace::MEDSKIP:
  60                 item = 2;
  61                 break;
  62         case VSpace::BIGSKIP:
  63                 item = 3;
  64                 break;
  65         case VSpace::VFILL:
  66                 item = 4;
  67                 break;
  68         case VSpace::LENGTH:
  69                 item = 5;
  70                 break;
  71         }
  72         spacing->setCurrentItem(item);
  73         keep->setChecked(space.keep());
  74
  75         LyXLength::UNIT default_unit =
  76                         (lyxrc.default_papersize > 3) ? LyXLength::CM : LyXLength::IN;
  77         bool const custom_vspace = space.kind() == VSpace::LENGTH;
  78         if (custom_vspace) {
  79                 value->setEnabled(true);
  80                 unit->setEnabled(true);
  81                 string length = space.length().asString();
  82                 lengthToWidgets(value, unit, length, default_unit);
  83         } else {
  84                 lengthToWidgets(value, unit, "", default_unit);
  85                 value->setEnabled(false);
  86                 unit->setEnabled(false);
  87         }
  88 }
  89
  90
  91 VSpace setVSpaceFromWidgets(int spacing,
  92                             QLineEdit * value,
  93                             LengthCombo * unit,
  94                             bool keep)
  95 {
  96         VSpace space = VSpace(VSpace::DEFSKIP);
  97
  98         switch (spacing) {
  99         case 0:
 100                 space = VSpace(VSpace::DEFSKIP);
 101                 break;
 102         case 1:
 103                 space = VSpace(VSpace::SMALLSKIP);
 104                 break;
 105         case 2:
 106                 space = VSpace(VSpace::MEDSKIP);
 107                 break;
 108         case 3:
 109                 space = VSpace(VSpace::BIGSKIP);
 110                 break;
 111         case 4:
 112                 space = VSpace(VSpace::VFILL);
 113                 break;
 114         case 5:
 115                 space = VSpace(LyXGlueLength(
 116                                       widgetsToLength(value, unit)));
 117                 break;
 118         }
 119
 120         space.setKeep(keep);
 121         return space;
 122 }
 123
 124 } // namespace anon
 125
 126
 127 typedef QController<ControlVSpace, QView<QVSpaceDialog> > base_class;
 128
 129 QVSpace::QVSpace(Dialog & parent)
 130         : base_class(parent, _("LyX: Vertical Space Settings"))
 131 {}
 132
 133
 134 void QVSpace::build_dialog()
 135 {
 136         // the tabbed folder
 137         dialog_.reset(new QVSpaceDialog(this));
 138
 139         // Manage the ok, apply, restore and cancel/close buttons
 140         bcview().setOK(dialog_->okPB);
 141         bcview().setApply(dialog_->applyPB);
 142         bcview().setCancel(dialog_->closePB);
 143
 144         // disable for read-only documents
 145         bcview().addReadOnly(dialog_->spacingCO);
 146         bcview().addReadOnly(dialog_->valueLE);
 147         bcview().addReadOnly(dialog_->unitCO);
 148         bcview().addReadOnly(dialog_->keepCB);
 149
 150         // remove the %-items from the unit choice
 151         dialog_->unitCO->noPercents();
 152 }
 153
 154
 155 void QVSpace::apply()
 156 {
 157         // spacing
 158         // If a vspace choice is "Length" but there's no text in
 159         // the input field, do not insert a vspace at all.
 160         if (dialog_->spacingCO->currentItem() == 6
 161             && dialog_->valueLE->text().isEmpty())
 162                 return;
 163
 164         VSpace const space =
 165                 setVSpaceFromWidgets(dialog_->spacingCO->currentItem(),
 166                                      dialog_->valueLE,
 167                                      dialog_->unitCO,
 168                                      dialog_->keepCB->isChecked());
 169
 170         controller().params() = space;
 171 }
 172
 173
 174 void QVSpace::update_contents()
 175 {
 176         setWidgetsFromVSpace(controller().params(),
 177                              dialog_->spacingCO,
 178                              dialog_->valueLE,
 179                              dialog_->unitCO,
 180                              dialog_->keepCB);
 181 }