3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
7 * \author Abdelrazak Younes
9 * Full author contact details are available in file CREDITS.
14 #include "TocWidget.h"
17 #include "qt_helpers.h"
21 #include "FuncRequest.h"
24 #include "support/debug.h"
25 #include "support/lassert.h"
27 #include <QHeaderView>
37 TocWidget::TocWidget(GuiView & gui_view, QWidget * parent)
38 : QWidget(parent), depth_(0), gui_view_(gui_view)
42 moveOutTB->setIcon(QIcon(":/images/promote.png"));
43 moveInTB->setIcon(QIcon(":/images/demote.png"));
44 moveUpTB->setIcon(QIcon(":/images/up.png"));
45 moveDownTB->setIcon(QIcon(":/images/down.png"));
46 updateTB->setIcon(QIcon(":/images/reload.png"));
49 tocTV->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
53 // hide the pointless QHeader for now
54 // in the future, new columns may appear
55 // like labels, bookmarks, etc...
56 // tocTV->header()->hide();
57 tocTV->header()->setVisible(false);
59 // Only one item selected at a time.
60 tocTV->setSelectionMode(QAbstractItemView::SingleSelection);
62 // The toc types combo won't change its model.
63 typeCO->setModel(gui_view_.tocModels().nameModel());
65 // Make sure the buttons are disabled when first shown without a loaded
67 enableControls(false);
71 void TocWidget::on_tocTV_activated(QModelIndex const & index)
77 void TocWidget::on_tocTV_clicked(QModelIndex const & index)
84 void TocWidget::goTo(QModelIndex const & index)
86 LYXERR(Debug::GUI, "goto " << index.row()
87 << ", " << index.column());
89 gui_view_.tocModels().goTo(current_type_, index);
93 void TocWidget::on_updateTB_clicked()
95 // The backend update can take some time so we disable
96 // the controls while waiting.
97 enableControls(false);
98 gui_view_.tocModels().updateBackend();
102 void TocWidget::on_sortCB_stateChanged(int state)
104 gui_view_.tocModels().sort(current_type_, state == Qt::Checked);
108 /* FIXME (Ugras 17/11/06):
109 I have implemented a indexDepth function to get the model indices. In my
110 opinion, somebody should derive a new qvariant class for tocModelItem
111 which saves the string data and depth information. That will save the
112 depth calculation. */
114 static int indexDepth(QModelIndex const & index, int depth = -1)
117 return index.parent() == QModelIndex()
118 ? depth : indexDepth(index.parent(), depth);
122 void TocWidget::on_depthSL_valueChanged(int depth)
127 gui_view_.setFocus();
131 void TocWidget::setTreeDepth(int depth)
137 // expanding and then collapsing is probably better,
138 // but my qt 4.1.2 doesn't have expandAll()..
139 //tocTV->expandAll();
140 QModelIndexList indices = tocTV->model()->match(
141 tocTV->model()->index(0, 0),
142 Qt::DisplayRole, "*", -1,
143 Qt::MatchFlags(Qt::MatchWildcard|Qt::MatchRecursive));
145 int size = indices.size();
146 for (int i = 0; i < size; i++) {
147 QModelIndex index = indices[i];
148 tocTV->setExpanded(index, indexDepth(index) < depth_);
153 void TocWidget::on_typeCO_currentIndexChanged(int index)
155 current_type_ = typeCO->itemData(index).toString();
157 gui_view_.setFocus();
161 void TocWidget::outline(int func_code)
163 enableControls(false);
164 QModelIndexList const & list = tocTV->selectionModel()->selectedIndexes();
167 enableControls(false);
169 dispatch(FuncRequest(static_cast<FuncCode>(func_code)));
170 enableControls(true);
171 gui_view_.setFocus();
175 void TocWidget::on_moveUpTB_clicked()
177 outline(LFUN_OUTLINE_UP);
181 void TocWidget::on_moveDownTB_clicked()
183 outline(LFUN_OUTLINE_DOWN);
187 void TocWidget::on_moveInTB_clicked()
189 outline(LFUN_OUTLINE_IN);
193 void TocWidget::on_moveOutTB_clicked()
195 outline(LFUN_OUTLINE_OUT);
199 void TocWidget::select(QModelIndex const & index)
201 if (!index.isValid()) {
202 LYXERR(Debug::GUI, "TocWidget::select(): QModelIndex is invalid!");
206 tocTV->scrollTo(index);
207 tocTV->clearSelection();
208 tocTV->setCurrentIndex(index);
212 /// Test if outlining operation is possible
213 static bool canOutline(QString const & type)
215 return type == "tableofcontents";
219 void TocWidget::enableControls(bool enable)
221 updateTB->setEnabled(enable);
222 sortCB->setEnabled(enable);
224 if (!canOutline(current_type_))
227 moveUpTB->setEnabled(enable);
228 moveDownTB->setEnabled(enable);
229 moveInTB->setEnabled(enable);
230 moveOutTB->setEnabled(enable);
232 depthSL->setMaximum(0);
233 depthSL->setValue(0);
238 /// Test if synchronized navigation is possible
239 static bool canNavigate(QString const & type)
241 // It is not possible to have synchronous navigation in a correctl
242 // and efficient way with the label type because Toc::item() do a linear
243 // seatch. Even if fixed, it might even not be desirable to do so if we
244 // want to support drag&drop of labels and references.
245 return type != "label";
249 void TocWidget::updateView()
251 if (!gui_view_.view()) {
252 enableControls(false);
253 typeCO->setEnabled(false);
255 tocTV->setEnabled(false);
258 typeCO->setEnabled(true);
259 tocTV->setEnabled(false);
260 tocTV->setUpdatesEnabled(false);
262 QAbstractItemModel * toc_model = gui_view_.tocModels().model(current_type_);
263 if (tocTV->model() != toc_model) {
264 tocTV->setModel(toc_model);
265 tocTV->setEditTriggers(QAbstractItemView::NoEditTriggers);
268 sortCB->blockSignals(true);
269 sortCB->setChecked(gui_view_.tocModels().isSorted(current_type_));
270 sortCB->blockSignals(false);
272 bool controls_enabled = toc_model && toc_model->rowCount() > 0
273 && !gui_view_.buffer()->isReadonly();
274 enableControls(controls_enabled);
276 depthSL->setMaximum(gui_view_.tocModels().depth(current_type_));
277 depthSL->setValue(depth_);
278 setTreeDepth(depth_);
279 if (canNavigate(current_type_))
280 select(gui_view_.tocModels().currentIndex(current_type_));
281 tocTV->setEnabled(true);
282 tocTV->setUpdatesEnabled(true);
286 static QString decodeType(QString const & str)
289 if (type.contains("tableofcontents")) {
290 type = "tableofcontents";
291 } else if (type.contains("floatlist")) {
292 if (type.contains("\"figure"))
294 else if (type.contains("\"table"))
296 else if (type.contains("\"algorithm"))
303 void TocWidget::init(QString const & str)
307 new_index = typeCO->findData(current_type_);
309 new_index = typeCO->findData(decodeType(str));
311 // If everything else fails, settle on the table of contents which is
312 // guaranted to exist.
313 if (new_index == -1) {
314 current_type_ = "tableofcontents";
315 new_index = typeCO->findData(current_type_);
318 typeCO->blockSignals(true);
319 typeCO->setCurrentIndex(new_index);
320 typeCO->blockSignals(false);
323 } // namespace frontend
326 #include "TocWidget_moc.cpp"