3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
8 * Full author contact details are available in file CREDITS.
13 #include "PanelStack.h"
15 #include "GuiApplication.h"
16 #include "GuiFontMetrics.h"
17 #include "qt_helpers.h"
19 #include "FancyLineEdit.h"
21 #include "support/debug.h"
22 #include "support/lassert.h"
24 #include <QAbstractButton>
25 #include <QApplication>
30 #include <QHBoxLayout>
31 #include <QHeaderView>
34 #include <QListWidget>
36 #include <QPushButton>
37 #include <QStackedWidget>
39 #include <QTreeWidget>
40 #include <QVBoxLayout>
48 PanelStack::PanelStack(QWidget * parent)
51 delay_search_ = new QTimer(this);
52 search_ = new FancyLineEdit(this);
53 list_ = new QTreeWidget(this);
54 stack_ = new QStackedWidget(this);
56 // Configure the timer
57 delay_search_->setSingleShot(true);
58 connect(delay_search_, SIGNAL(timeout()), this, SLOT(search()));
61 list_->setRootIsDecorated(false);
62 list_->setColumnCount(1);
63 list_->header()->hide();
64 setSectionResizeMode(list_->header(), QHeaderView::ResizeToContents);
65 list_->header()->setStretchLastSection(false);
66 list_->setMinimumSize(list_->viewport()->size());
68 connect(list_, SIGNAL(currentItemChanged(QTreeWidgetItem *,
70 this, SLOT(switchPanel(QTreeWidgetItem *, QTreeWidgetItem *)));
71 connect(list_, SIGNAL(itemClicked (QTreeWidgetItem*, int)),
72 this, SLOT(itemSelected(QTreeWidgetItem *, int)));
74 // Configure the search box
75 search_->setPlaceholderText(qt_("Search"));
76 search_->setClearButton(true);
77 connect(search_, SIGNAL(rightButtonClicked()),
78 this, SLOT(resetSearch()));
79 connect(search_, SIGNAL(textEdited(QString)),
80 this, SLOT(filterChanged(QString)));
81 connect(search_, SIGNAL(downPressed()),
82 list_, SLOT(setFocus()));
84 // Create the output layout, horizontal plus a VBox on the left with the
85 // search box and the tree
86 QVBoxLayout * left_layout = new QVBoxLayout;
87 left_layout->addWidget(search_, 0);
88 left_layout->addWidget(list_, 1);
90 QHBoxLayout * main_layout = new QHBoxLayout(this);
91 main_layout->addLayout(left_layout, 0);
92 main_layout->addWidget(stack_, 1);
96 void PanelStack::addCategory(QString const & name, QString const & parent)
98 QTreeWidgetItem * item = nullptr;
100 LYXERR(Debug::GUI, "addCategory n= " << name << " parent= ");
104 if (parent.isEmpty()) {
105 item = new QTreeWidgetItem(list_);
106 item->setText(0, qt_(name));
109 if (!panel_map_.contains(parent))
111 item = new QTreeWidgetItem(panel_map_.value(parent));
112 item->setText(0, qt_(name));
114 list_->setRootIsDecorated(true);
117 panel_map_[name] = item;
119 GuiFontMetrics fm(list_->font());
121 // calculate the real size the current item needs in the listview
122 int itemsize = fm.width(qt_(name)) + 10 + list_->indentation() * depth;
123 // adjust the listview width to the max. itemsize
124 if (itemsize > list_->minimumWidth())
125 list_->setMinimumWidth(itemsize);
129 void PanelStack::addPanel(QWidget * panel, QString const & name,
130 QString const & parent)
132 addCategory(name, parent);
133 QTreeWidgetItem * item = panel_map_.value(name);
134 widget_map_[item] = panel;
135 stack_->addWidget(panel);
136 stack_->setMinimumSize(panel->minimumSize());
140 void PanelStack::showPanel(QString const & name, bool show)
142 QTreeWidgetItem * item = panel_map_.value(name, 0);
143 LASSERT(item, return);
145 item->setHidden(!show);
149 void PanelStack::setCurrentPanel(QString const & name)
151 QTreeWidgetItem * item = panel_map_.value(name, 0);
152 LASSERT(item, return);
154 // force on first set
155 if (list_->currentItem() == item)
158 list_->setCurrentItem(item);
162 bool PanelStack::isCurrentPanel(QString const & name) const
164 QTreeWidgetItem * item = panel_map_.value(name, 0);
165 LASSERT(item, return false);
167 return (list_->currentItem() == item);
171 void PanelStack::switchPanel(QTreeWidgetItem * item,
172 QTreeWidgetItem * previous)
174 // do nothing when clicked on whitespace (item=NULL)
178 // if we have a category, expand the tree and go to the
179 // first enabled item
180 if (item->childCount() > 0) {
181 item->setExpanded(true);
182 if (previous && previous->parent() != item) {
183 // Looks for a child not disabled
184 for (int i = 0; i < item->childCount(); ++i) {
185 if (item->child(i)->flags() & Qt::ItemIsEnabled) {
186 switchPanel(item->child(i), previous);
192 else if (QWidget * w = widget_map_.value(item, 0)) {
193 stack_->setCurrentWidget(w);
197 static bool matches(QString const & input, QString const & search)
199 QString text = input;
201 // Check if the input contains the search string
202 return text.remove('&').contains(search, Qt::CaseInsensitive);
205 static void setTreeItemStatus(QTreeWidgetItem * tree_item, bool enabled)
207 // Enable/disable the item
208 tree_item->setDisabled(!enabled);
210 // Change the color from black to gray or viceversa
211 QPalette::ColorGroup new_color =
212 enabled ? QPalette::Active : QPalette::Disabled;
213 tree_item->setForeground(0, QApplication::palette().color(new_color,
217 void PanelStack::hideEvent(QHideEvent * event)
219 QWidget::hideEvent(event);
221 // Programmatically hidden (not simply minimized by the user)
222 if (!event->spontaneous()) {
227 void PanelStack::resetSearch()
229 search_->setText(QString());
233 void PanelStack::filterChanged(QString const & /*search*/)
235 // The text in the search box is changed, reset the timer
236 // and then search in the widgets
237 delay_search_->start(300);
240 void PanelStack::search()
242 QString search = search_->text();
243 bool enable_all = search.isEmpty();
245 // If the search string is empty we enable all the items
246 // otherwise we disable everything and then selectively
247 // re-enable matching items
248 for (QTreeWidgetItem * tree_item : panel_map_) {
249 setTreeItemStatus(tree_item, enable_all);
252 for (QTreeWidgetItem * tree_item : panel_map_) {
254 QWidget * pane_widget = widget_map_[tree_item];
256 // First of all we look in the pane name
257 bool pane_matches = tree_item->text(0).contains(search,
258 Qt::CaseInsensitive);
260 // If the tree item has an associated pane
262 // Loops on the list of children widgets (recursive)
263 QWidgetList children = pane_widget->findChildren<QWidget *>();
264 for (QWidget * child_widget : children) {
265 bool widget_matches = false;
267 // Try to cast to the most common widgets and looks in it's
269 // It's bad OOP, it would be nice to have a QWidget::toString()
270 // overloaded by each widget, but this would require to change
271 // Qt or subclass each widget.
272 // Note that we have to ignore the amperstand symbol
273 if (QAbstractButton * button =
274 qobject_cast<QAbstractButton *>(child_widget)) {
275 widget_matches = matches(button->text(), search);
277 } else if (QGroupBox * group_box =
278 qobject_cast<QGroupBox *>(child_widget)) {
279 widget_matches = matches(group_box->title(), search);
281 } else if (QLabel * label =
282 qobject_cast<QLabel *>(child_widget)) {
283 widget_matches = matches(label->text(), search);
285 } else if (QLineEdit * line_edit =
286 qobject_cast<QLineEdit *>(child_widget)) {
287 widget_matches = matches(line_edit->text(), search);
289 } else if (QListWidget * list_widget =
290 qobject_cast<QListWidget *>(child_widget)) {
292 list_widget->findItems(search,
293 Qt::MatchContains).count() > 0;
295 } else if (QTreeWidget * tree_view =
296 qobject_cast<QTreeWidget *>(child_widget)) {
298 tree_view->findItems(search,
299 Qt::MatchContains).count() > 0;
301 } else if (QComboBox * combo_box =
302 qobject_cast<QComboBox *>(child_widget)) {
304 combo_box->findText(search,
305 Qt::MatchContains) != -1;
311 // If this widget meets the search criteria
312 if (widget_matches && !enable_all) {
313 // The pane too meets the search criteria
316 // Highlight the widget
317 QPalette widget_palette = child_widget->palette();
318 widget_palette.setColor(child_widget->foregroundRole(),
320 child_widget->setPalette(widget_palette);
322 // Reset the color of the widget
323 child_widget->setPalette(QApplication::palette(child_widget));
327 // If the pane meets the search criteria
328 if (pane_matches && !enable_all) {
329 // Expand and enable the pane and his ancestors (typically just
331 QTreeWidgetItem * item = tree_item;
333 item->setExpanded(true);
334 setTreeItemStatus(item, true);
335 item = item->parent();
343 void PanelStack::itemSelected(QTreeWidgetItem * item, int)
345 // de-select the category if a child is selected
346 if (item->childCount() > 0 && item->child(0)->isSelected())
347 item->setSelected(false);
351 QSize PanelStack::sizeHint() const
353 return QSize(list_->width() + stack_->width(),
354 qMax(list_->height(), stack_->height()));
357 } // namespace frontend
360 #include "moc_PanelStack.cpp"