src/frontends/qt4/QRef.C

   1 /**
   2  * \file QRef.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author John Levon
   7  * \author Jürgen Spitzmüller
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "QRef.h"
  15 #include "QRefDialog.h"
  16 #include "Qt2BC.h"
  17 #include "qt_helpers.h"
  18
  19 #include "controllers/ButtonController.h"
  20 #include "controllers/ControlRef.h"
  21
  22 #include "insets/insetref.h"
  23
  24 #include <QLineEdit>
  25 #include <QCheckBox>
  26 #include <QListWidget>
  27 #include <QListWidgetItem>
  28 #include <QPushButton>
  29 #include <QToolTip>
  30
  31
  32 using lyx::docstring;
  33
  34 using std::vector;
  35 using std::string;
  36
  37 namespace lyx {
  38 namespace frontend {
  39
  40 // full qualification because qt4 has also a ControlRef type
  41 typedef QController<lyx::frontend::ControlRef, QView<QRefDialog> > ref_base_class;
  42
  43
  44 QRef::QRef(Dialog & parent)
  45         : ref_base_class(parent, _("Cross-reference")),
  46         sort_(false), at_ref_(false)
  47 {
  48 }
  49
  50
  51 void QRef::build_dialog()
  52 {
  53         dialog_.reset(new QRefDialog(this));
  54
  55         bcview().setOK(dialog_->okPB);
  56         bcview().setApply(dialog_->applyPB);
  57         bcview().setCancel(dialog_->closePB);
  58         bcview().addReadOnly(dialog_->refsLW);
  59         bcview().addReadOnly(dialog_->sortCB);
  60         bcview().addReadOnly(dialog_->nameED);
  61         bcview().addReadOnly(dialog_->referenceED);
  62         bcview().addReadOnly(dialog_->typeCO);
  63         bcview().addReadOnly(dialog_->bufferCO);
  64
  65         restored_buffer_ = -1;
  66 }
  67
  68
  69 void QRef::update_contents()
  70 {
  71         InsetCommandParams const & params = controller().params();
  72
  73         int orig_type = dialog_->typeCO->currentIndex();
  74
  75         dialog_->referenceED->setText(toqstr(params["reference"]));
  76
  77         dialog_->nameED->setText(toqstr(params["name"]));
  78         dialog_->nameED->setReadOnly(!nameAllowed() && !readOnly());
  79
  80         // restore type settings for new insets
  81         if (params["reference"].empty())
  82                 dialog_->typeCO->setCurrentIndex(orig_type);
  83         else
  84                 dialog_->typeCO->setCurrentIndex(InsetRef::getType(params.getCmdName()));
  85         dialog_->typeCO->setEnabled(typeAllowed() && !readOnly());
  86         if (!typeAllowed())
  87                 dialog_->typeCO->setCurrentIndex(0);
  88
  89         dialog_->sortCB->setChecked(sort_);
  90
  91         // insert buffer list
  92         dialog_->bufferCO->clear();
  93         vector<string> const buffers = controller().getBufferList();
  94         for (vector<string>::const_iterator it = buffers.begin();
  95                 it != buffers.end(); ++it) {
  96                 dialog_->bufferCO->addItem(toqstr(*it));
  97         }
  98         // restore the buffer combo setting for new insets
  99         if (params["reference"].empty() && restored_buffer_ != -1
 100         && restored_buffer_ < dialog_->bufferCO->count())
 101                 dialog_->bufferCO->setCurrentIndex(restored_buffer_);
 102         else
 103                 dialog_->bufferCO->setCurrentIndex(controller().getBufferNum());
 104
 105         updateRefs();
 106         bc().valid(false);
 107 }
 108
 109
 110 void QRef::apply()
 111 {
 112         InsetCommandParams & params = controller().params();
 113
 114         last_reference_ = dialog_->referenceED->text();
 115
 116         params.setCmdName(InsetRef::getName(dialog_->typeCO->currentIndex()));
 117         params["reference"] = qstring_to_ucs4(last_reference_);
 118         params["name"] = qstring_to_ucs4(dialog_->nameED->text());
 119
 120         restored_buffer_ = dialog_->bufferCO->currentIndex();
 121 }
 122
 123
 124 bool QRef::nameAllowed()
 125 {
 126         Kernel::DocType const doc_type = kernel().docType();
 127         return doc_type != Kernel::LATEX &&
 128                 doc_type != Kernel::LITERATE;
 129 }
 130
 131
 132 bool QRef::typeAllowed()
 133 {
 134         Kernel::DocType const doc_type = kernel().docType();
 135         return doc_type != Kernel::DOCBOOK;
 136 }
 137
 138
 139 void QRef::setGoBack()
 140 {
 141         dialog_->gotoPB->setText(qt_("&Go Back"));
 142         dialog_->gotoPB->setToolTip("");
 143         dialog_->gotoPB->setToolTip(qt_("Jump back"));
 144 }
 145
 146
 147 void QRef::setGotoRef()
 148 {
 149         dialog_->gotoPB->setText(qt_("&Go to Label"));
 150         dialog_->gotoPB->setToolTip("");
 151         dialog_->gotoPB->setToolTip(qt_("Jump to label"));
 152 }
 153
 154
 155 void QRef::gotoRef()
 156 {
 157         string ref(fromqstr(dialog_->referenceED->text()));
 158
 159         if (at_ref_) {
 160                 // go back
 161                 setGotoRef();
 162                 controller().gotoBookmark();
 163         } else {
 164                 // go to the ref
 165                 setGoBack();
 166                 controller().gotoRef(ref);
 167         }
 168         at_ref_ = !at_ref_;
 169 }
 170
 171
 172 void QRef::redoRefs()
 173 {
 174         // Prevent these widgets from emitting any signals whilst
 175         // we modify their state.
 176         dialog_->refsLW->blockSignals(true);
 177         dialog_->referenceED->blockSignals(true);
 178         dialog_->refsLW->setUpdatesEnabled(false);
 179
 180         dialog_->refsLW->clear();
 181
 182         // need this because Qt will send a highlight() here for
 183         // the first item inserted
 184         QString const oldSelection(dialog_->referenceED->text());
 185
 186         for (std::vector<docstring>::const_iterator iter = refs_.begin();
 187                 iter != refs_.end(); ++iter) {
 188                 dialog_->refsLW->addItem(toqstr(*iter));
 189         }
 190
 191         if (sort_)
 192                 dialog_->refsLW->sortItems();
 193
 194         dialog_->referenceED->setText(oldSelection);
 195
 196         // restore the last selection or, for new insets, highlight
 197         // the previous selection
 198         if (!oldSelection.isEmpty() || !last_reference_.isEmpty()) {
 199                 bool const newInset = oldSelection.isEmpty();
 200                 QString textToFind = newInset ? last_reference_ : oldSelection;
 201                 bool foundItem = false;
 202                 for (int i = 0; !foundItem && i < dialog_->refsLW->count(); ++i) {
 203                         QListWidgetItem * item = dialog_->refsLW->item(i);
 204                         if (textToFind == item->text()) {
 205                                 dialog_->refsLW->setCurrentItem(item);
 206                                 dialog_->refsLW->setItemSelected(item, !newInset);
 207                                 //Make sure selected item is visible
 208                                 dialog_->refsLW->scrollToItem(item);
 209                                 foundItem = true;
 210                         }
 211                 }
 212                 if (foundItem)
 213                         last_reference_ = textToFind;
 214                 else last_reference_ = "";
 215         }
 216         dialog_->refsLW->setUpdatesEnabled(true);
 217         dialog_->refsLW->update();
 218
 219         // Re-activate the emission of signals by these widgets.
 220         dialog_->refsLW->blockSignals(false);
 221         dialog_->referenceED->blockSignals(false);
 222 }
 223
 224
 225 void QRef::updateRefs()
 226 {
 227         refs_.clear();
 228         string const name = controller().getBufferName(dialog_->bufferCO->currentIndex());
 229         refs_ = controller().getLabelList(name);
 230         dialog_->sortCB->setEnabled(!refs_.empty());
 231         dialog_->refsLW->setEnabled(!refs_.empty());
 232         dialog_->gotoPB->setEnabled(!refs_.empty());
 233         redoRefs();
 234 }
 235
 236 bool QRef::isValid()
 237 {
 238         return !dialog_->referenceED->text().isEmpty();
 239 }
 240
 241 } // namespace frontend
 242 } // namespace lyx