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 /* FIXME (Ugras 17/11/06):
103 I have implemented a indexDepth function to get the model indices. In my
104 opinion, somebody should derive a new qvariant class for tocModelItem
105 which saves the string data and depth information. That will save the
106 depth calculation. */
108 static int indexDepth(QModelIndex const & index, int depth = -1)
111 return index.parent() == QModelIndex()
112 ? depth : indexDepth(index.parent(), depth);
116 void TocWidget::on_depthSL_valueChanged(int depth)
121 gui_view_.setFocus();
125 void TocWidget::setTreeDepth(int depth)
131 // expanding and then collapsing is probably better,
132 // but my qt 4.1.2 doesn't have expandAll()..
133 //tocTV->expandAll();
134 QModelIndexList indices = tocTV->model()->match(
135 tocTV->model()->index(0, 0),
136 Qt::DisplayRole, "*", -1,
137 Qt::MatchFlags(Qt::MatchWildcard|Qt::MatchRecursive));
139 int size = indices.size();
140 for (int i = 0; i < size; i++) {
141 QModelIndex index = indices[i];
142 tocTV->setExpanded(index, indexDepth(index) < depth_);
147 void TocWidget::on_typeCO_currentIndexChanged(int index)
149 current_type_ = typeCO->itemData(index).toString();
151 gui_view_.setFocus();
155 void TocWidget::outline(int func_code)
157 enableControls(false);
158 QModelIndexList const & list = tocTV->selectionModel()->selectedIndexes();
161 enableControls(false);
163 dispatch(FuncRequest(static_cast<FuncCode>(func_code)));
164 enableControls(true);
165 gui_view_.setFocus();
169 void TocWidget::on_moveUpTB_clicked()
171 outline(LFUN_OUTLINE_UP);
175 void TocWidget::on_moveDownTB_clicked()
177 outline(LFUN_OUTLINE_DOWN);
181 void TocWidget::on_moveInTB_clicked()
183 outline(LFUN_OUTLINE_IN);
187 void TocWidget::on_moveOutTB_clicked()
189 outline(LFUN_OUTLINE_OUT);
193 void TocWidget::select(QModelIndex const & index)
195 if (!index.isValid()) {
196 LYXERR(Debug::GUI, "TocWidget::select(): QModelIndex is invalid!");
200 tocTV->scrollTo(index);
201 tocTV->clearSelection();
202 tocTV->setCurrentIndex(index);
206 /// Test if outlining operation is possible
207 static bool canOutline(QString const & type)
209 return type == "tableofcontents";
213 void TocWidget::enableControls(bool enable)
215 updateTB->setEnabled(enable);
217 if (!canOutline(current_type_))
220 moveUpTB->setEnabled(enable);
221 moveDownTB->setEnabled(enable);
222 moveInTB->setEnabled(enable);
223 moveOutTB->setEnabled(enable);
225 depthSL->setMaximum(0);
226 depthSL->setValue(0);
231 /// Test if synchronized navigation is possible
232 static bool canNavigate(QString const & type)
234 // It is not possible to have synchronous navigation in a correctl
235 // and efficient way with the label type because Toc::item() do a linear
236 // seatch. Even if fixed, it might even not be desirable to do so if we
237 // want to support drag&drop of labels and references.
238 return type != "label";
242 void TocWidget::updateView()
244 if (!gui_view_.view()) {
245 enableControls(false);
246 typeCO->setEnabled(false);
248 tocTV->setEnabled(false);
251 typeCO->setEnabled(true);
252 tocTV->setEnabled(true);
254 QStandardItemModel * toc_model = gui_view_.tocModels().model(current_type_);
255 if (tocTV->model() != toc_model) {
256 tocTV->setModel(toc_model);
257 tocTV->setEditTriggers(QAbstractItemView::NoEditTriggers);
259 bool controls_enabled = toc_model && toc_model->rowCount() > 0
260 && !gui_view_.buffer()->isReadonly();
261 enableControls(controls_enabled);
262 depthSL->setMaximum(gui_view_.tocModels().depth(current_type_));
263 depthSL->setValue(depth_);
264 setTreeDepth(depth_);
265 if (canNavigate(current_type_))
266 select(gui_view_.tocModels().currentIndex(current_type_));
270 static QString decodeType(QString const & str)
273 if (type.contains("tableofcontents")) {
274 type = "tableofcontents";
275 } else if (type.contains("floatlist")) {
276 if (type.contains("\"figure"))
278 else if (type.contains("\"table"))
280 else if (type.contains("\"algorithm"))
287 void TocWidget::init(QString const & str)
291 new_index = typeCO->findData(current_type_);
293 new_index = typeCO->findData(decodeType(str));
295 // If everything else fails, settle on the table of contents which is
296 // guaranted to exist.
297 if (new_index == -1) {
298 current_type_ = "tableofcontents";
299 new_index = typeCO->findData(current_type_);
302 typeCO->blockSignals(true);
303 typeCO->setCurrentIndex(new_index);
304 typeCO->blockSignals(false);
307 } // namespace frontend
310 #include "TocWidget_moc.cpp"