-/////////////////////////////////////////////////////////////////////
-//
-// GuiLayoutBox
-//
-/////////////////////////////////////////////////////////////////////
-
-class LayoutItemDelegate : public QItemDelegate {
-public:
- ///
- explicit LayoutItemDelegate(QObject * parent = 0)
- : QItemDelegate(parent)
- {}
-
- ///
- void paint(QPainter * painter, QStyleOptionViewItem const & option,
- QModelIndex const & index) const
- {
- QStyleOptionViewItem opt = option;
-
- // default background
- painter->fillRect(opt.rect, opt.palette.color(QPalette::Base));
-
- // category header?
- if (lyxrc.group_layouts) {
- QSortFilterProxyModel const * model
- = static_cast<QSortFilterProxyModel const *>(index.model());
-
- QString stdCat = category(*model->sourceModel(), 0);
- QString cat = category(*index.model(), index.row());
-
- // not the standard layout and not the same as in the previous line?
- if (stdCat != cat
- && (index.row() == 0 || cat != category(*index.model(), index.row() - 1))) {
- painter->save();
-
- // draw unselected background
- QStyle::State state = opt.state;
- opt.state = opt.state & ~QStyle::State_Selected;
- drawBackground(painter, opt, index);
- opt.state = state;
-
- // draw category header
- drawCategoryHeader(painter, opt,
- category(*index.model(), index.row()));
-
- // move rect down below header
- opt.rect.setTop(opt.rect.top() + headerHeight(opt));
-
- painter->restore();
- }
- }
-
- QItemDelegate::paint(painter, opt, index);
- }
-
- ///
- void drawDisplay(QPainter * painter, QStyleOptionViewItem const & opt,
- const QRect & /*rect*/, const QString & text ) const
- {
- QString utext = underlineFilter(text);
-
- // Draw the rich text.
- painter->save();
- QColor col = opt.palette.text().color();
- if (opt.state & QStyle::State_Selected)
- col = opt.palette.highlightedText().color();
- QAbstractTextDocumentLayout::PaintContext context;
- context.palette.setColor(QPalette::Text, col);
-
- QTextDocument doc;
- doc.setDefaultFont(opt.font);
- doc.setHtml(utext);
-
- QTextFrameFormat fmt = doc.rootFrame()->frameFormat();
- fmt.setMargin(0);
- doc.rootFrame()->setFrameFormat(fmt);
-
- painter->translate(opt.rect.x() + 5,
- opt.rect.y() + (opt.rect.height() - opt.fontMetrics.height()) / 2);
- doc.documentLayout()->draw(painter, context);
- painter->restore();
- }
-
- ///
- QSize sizeHint(QStyleOptionViewItem const & opt,
- QModelIndex const & index) const
- {
- GuiLayoutBox * combo = static_cast<GuiLayoutBox *>(parent());
- QSortFilterProxyModel const * model
- = static_cast<QSortFilterProxyModel const *>(index.model());
- QSize size = QItemDelegate::sizeHint(opt, index);
-
- /// QComboBox uses the first row height to estimate the
- /// complete popup height during QComboBox::showPopup().
- /// To avoid scrolling we have to sneak in space for the headers.
- /// So we tweak this value accordingly. It's not nice, but the
- /// only possible way it seems.
- if (lyxrc.group_layouts && index.row() == 0 && combo->inShowPopup_) {
- int itemHeight = size.height();
-
- // we have to show \c cats many headers:
- unsigned cats = combo->visibleCategories_;
-
- // and we have \c n items to distribute the needed space over
- unsigned n = combo->model()->rowCount();
-
- // so the needed average height (rounded upwards) is:
- size.setHeight((headerHeight(opt) * cats + itemHeight * n + n - 1) / n);
- return size;
- }
-
- // Add space for the category headers here?
- // Not for the standard layout though.
- QString stdCat = category(*model->sourceModel(), 0);
- QString cat = category(*index.model(), index.row());
- if (lyxrc.group_layouts && stdCat != cat
- && (index.row() == 0 || cat != category(*index.model(), index.row() - 1))) {
- size.setHeight(size.height() + headerHeight(opt));
- }
-
- return size;
- }
-
-private:
- ///
- QString category(QAbstractItemModel const & model, int row) const
- {
- return model.data(model.index(row, 2), Qt::DisplayRole).toString();
- }
-
- ///
- int headerHeight(QStyleOptionViewItem const & opt) const
- {
- return opt.fontMetrics.height() * 8 / 10;
- }
- ///
- void drawCategoryHeader(QPainter * painter, QStyleOptionViewItem const & opt,
- QString const & category) const
- {
- // slightly blended color
- QColor lcol = opt.palette.text().color();
- lcol.setAlpha(127);
- painter->setPen(lcol);
-
- // set 80% scaled, bold font
- QFont font = opt.font;
- font.setBold(true);
- font.setWeight(QFont::Black);
- font.setPointSize(opt.font.pointSize() * 8 / 10);
- painter->setFont(font);
-
- // draw the centered text
- QFontMetrics fm(font);
- int w = fm.width(category);
- int x = opt.rect.x() + (opt.rect.width() - w) / 2;
- int y = opt.rect.y() + fm.ascent();
- int left = x;
- int right = x + w;
- painter->drawText(x, y, category);
-
- // the vertical position of the line: middle of lower case chars
- int ymid = y - 1 - fm.xHeight() / 2; // -1 for the baseline
-
- // draw the horizontal line
- if (!category.isEmpty()) {
- painter->drawLine(opt.rect.x(), ymid, left - 1, ymid);
- painter->drawLine(right + 1, ymid, opt.rect.right(), ymid);
- } else
- painter->drawLine(opt.rect.x(), ymid, opt.rect.right(), ymid);
- }
-
-
- ///
- QString underlineFilter(QString const & s) const
- {
- // get filter
- GuiLayoutBox * p = static_cast<GuiLayoutBox *>(parent());
- QString const & f = p->filter();
- if (f.isEmpty())
- return s;
-
- // step through data item and put "(x)" for every matching character
- QString r;
- int lastp = -1;
- p->filter();
- for (int i = 0; i < f.length(); ++i) {
- int p = s.indexOf(f[i], lastp + 1, Qt::CaseInsensitive);
- LASSERT(p != -1, /**/);
- if (lastp == p - 1 && lastp != -1) {
- // remove ")" and append "x)"
- r = r.left(r.length() - 4) + s[p] + "</u>";
- } else {
- // append "(x)"
- r += s.mid(lastp + 1, p - lastp - 1);
- r += QString("<u>") + s[p] + "</u>";
- }
- lastp = p;
- }
- r += s.mid(lastp + 1);
- return r;
- }
-};
-
-
-class GuiLayoutFilterModel : public QSortFilterProxyModel {
-public:
- ///
- GuiLayoutFilterModel(QObject * parent = 0)
- : QSortFilterProxyModel(parent)
- {}
-
- ///
- void triggerLayoutChange()
- {
- layoutAboutToBeChanged();
- layoutChanged();
- }
-};
-
-
-GuiLayoutBox::GuiLayoutBox(GuiToolbar * bar, GuiView & owner)
- : owner_(owner), bar_(bar), lastSel_(-1),
- layoutItemDelegate_(new LayoutItemDelegate(this)),
- visibleCategories_(0), inShowPopup_(false)
-{
- setSizeAdjustPolicy(QComboBox::AdjustToContents);
- setFocusPolicy(Qt::ClickFocus);
- setMinimumWidth(sizeHint().width());
- setMaxVisibleItems(100);
-
- // set the layout model with two columns
- // 1st: translated layout names
- // 2nd: raw layout names
- model_ = new QStandardItemModel(0, 2, this);
- filterModel_ = new GuiLayoutFilterModel(this);
- filterModel_->setSourceModel(model_);
- setModel(filterModel_);
-
- // for the filtering we have to intercept characters
- view()->installEventFilter(this);
- view()->setItemDelegateForColumn(0, layoutItemDelegate_);
-
- QObject::connect(this, SIGNAL(activated(int)),
- this, SLOT(selected(int)));
- QObject::connect(bar_, SIGNAL(iconSizeChanged(QSize)),
- this, SLOT(setIconSize(QSize)));
-
- owner_.setLayoutDialog(this);
- updateContents(true);
-}
-
-
-void GuiLayoutBox::setFilter(QString const & s)
-{
- bool enabled = view()->updatesEnabled();
- view()->setUpdatesEnabled(false);
-
- // remember old selection
- int sel = currentIndex();
- if (sel != -1)
- lastSel_ = filterModel_->mapToSource(filterModel_->index(sel, 0)).row();
-
- filter_ = s;
- filterModel_->setFilterRegExp(charFilterRegExp(filter_));
- countCategories();
-
- // restore old selection
- if (lastSel_ != -1) {
- QModelIndex i = filterModel_->mapFromSource(model_->index(lastSel_, 0));
- if (i.isValid())
- setCurrentIndex(i.row());
- }
-
- // Workaround to resize to content size
- // FIXME: There must be a better way. The QComboBox::AdjustToContents)
- // does not help.
- if (view()->isVisible()) {
- // call QComboBox::showPopup. But set the inShowPopup_ flag to switch on
- // the hack in the item delegate to make space for the headers.
- // We do not call our implementation of showPopup because that
- // would reset the filter again. This is only needed if the user clicks
- // on the QComboBox.
- LASSERT(!inShowPopup_, /**/);
- inShowPopup_ = true;
- QComboBox::showPopup();
- inShowPopup_ = false;
-
- // The item delegate hack is off again. So trigger a relayout of the popup.
- filterModel_->triggerLayoutChange();
-
- if (!s.isEmpty())
- owner_.message(_("Filtering layouts with \"" + fromqstr(s) + "\". "
- "Press ESC to remove filter."));
- else
- owner_.message(_("Enter characters to filter the layout list."));
- }
-
- view()->setUpdatesEnabled(enabled);
-}
-
-
-void GuiLayoutBox::countCategories()
-{
- int n = filterModel_->rowCount();
- visibleCategories_ = 0;
- if (n == 0 || !lyxrc.group_layouts)
- return;
-
- // skip the "Standard" category
- QString prevCat = model_->index(0, 2).data().toString();
-
- // count categories
- for (int i = 0; i < n; ++i) {
- QString cat = filterModel_->index(i, 2).data().toString();
- if (cat != prevCat)
- ++visibleCategories_;
- prevCat = cat;
- }
-}
-
-
-QString GuiLayoutBox::charFilterRegExp(QString const & filter)
-{
- QString re;
- for (int i = 0; i < filter.length(); ++i) {
- QChar c = filter[i];
- if (c.isLower())
- re += ".*[" + QRegExp::escape(c) + QRegExp::escape(c.toUpper()) + "]";
- else
- re += ".*" + QRegExp::escape(c);
- }
- return re;
-}
-
-
-void GuiLayoutBox::resetFilter()
-{
- setFilter(QString());
-}
-
-
-void GuiLayoutBox::showPopup()
-{
- owner_.message(_("Enter characters to filter the layout list."));
-
- bool enabled = view()->updatesEnabled();
- view()->setUpdatesEnabled(false);
-
- resetFilter();
-
- // call QComboBox::showPopup. But set the inShowPopup_ flag to switch on
- // the hack in the item delegate to make space for the headers.
- LASSERT(!inShowPopup_, /**/);
- inShowPopup_ = true;
- QComboBox::showPopup();
- inShowPopup_ = false;
-
- // The item delegate hack is off again. So trigger a relayout of the popup.
- filterModel_->triggerLayoutChange();
-
- view()->setUpdatesEnabled(enabled);
-}
-
-
-bool GuiLayoutBox::eventFilter(QObject * o, QEvent * e)
-{
- if (e->type() != QEvent::KeyPress)
- return QComboBox::eventFilter(o, e);
-
- QKeyEvent * ke = static_cast<QKeyEvent*>(e);
- bool modified = (ke->modifiers() == Qt::ControlModifier)
- || (ke->modifiers() == Qt::AltModifier)
- || (ke->modifiers() == Qt::MetaModifier);
-
- switch (ke->key()) {
- case Qt::Key_Escape:
- if (!modified && !filter_.isEmpty()) {
- resetFilter();
- return true;
- }
- break;
- case Qt::Key_Backspace:
- if (!modified) {
- // cut off one character
- setFilter(filter_.left(filter_.length() - 1));
- }
- break;
- default:
- if (modified || ke->text().isEmpty())
- break;
- // find chars for the filter string
- QString s;
- for (int i = 0; i < ke->text().length(); ++i) {
- QChar c = ke->text()[i];
- if (c.isLetterOrNumber()
- || c.isSymbol()
- || c.isPunct()
- || c.category() == QChar::Separator_Space) {
- s += c;
- }
- }
- if (!s.isEmpty()) {
- // append new chars to the filter string
- setFilter(filter_ + s);
- return true;
- }
- break;
- }
-
- return QComboBox::eventFilter(o, e);
-}
-
-
-void GuiLayoutBox::setIconSize(QSize size)
-{
-#ifdef Q_WS_MACX
- bool small = size.height() < 20;
- setAttribute(Qt::WA_MacSmallSize, small);
- setAttribute(Qt::WA_MacNormalSize, !small);
-#else
- (void)size; // suppress warning
-#endif
-}
-
-
-void GuiLayoutBox::set(docstring const & layout)
-{
- resetFilter();
-
- if (!text_class_)
- return;
-
- QString const & name = toqstr((*text_class_)[layout].name());
- if (name == currentText())
- return;
-
- QList<QStandardItem *> r = model_->findItems(name, Qt::MatchExactly, 1);
- if (r.empty()) {
- LYXERR0("Trying to select non existent layout type " << name);
- return;
- }
-
- setCurrentIndex(filterModel_->mapFromSource(r.first()->index()).row());
-}
-
-
-void GuiLayoutBox::addItemSort(docstring const & item, docstring const & category,
- bool sorted, bool sortedByCat)
-{
- QString qitem = toqstr(item);
- QString titem = toqstr(translateIfPossible(item));
- QString qcat = toqstr(translateIfPossible(category));
-
- QList<QStandardItem *> row;
- row.append(new QStandardItem(titem));
- row.append(new QStandardItem(qitem));
- row.append(new QStandardItem(qcat));
-
- // the first entry is easy
- int const end = model_->rowCount();
- if (end == 0) {
- model_->appendRow(row);
- return;
- }
-
- // find category
- int i = 0;
- if (sortedByCat) {
- while (i < end && model_->item(i, 2)->text() != qcat)
- ++i;
- }
-
- // skip the Standard layout
- if (i == 0)
- ++i;
-
- // the simple unsorted case
- if (!sorted) {
- if (sortedByCat) {
- // jump to the end of the category group
- while (i < end && model_->item(i, 2)->text() == qcat)
- ++i;
- model_->insertRow(i, row);
- } else
- model_->appendRow(row);
- return;
- }
-
- // find row to insert the item, after the separator if it exists
- if (i < end) {
- // find alphabetic position
- while (i != end
- && model_->item(i, 0)->text().localeAwareCompare(titem) < 0
- && (!sortedByCat || model_->item(i, 2)->text() == qcat))
- ++i;
- }
-
- model_->insertRow(i, row);
-}
-
-
-void GuiLayoutBox::updateContents(bool reset)
-{
- resetFilter();
-
- Buffer const * buffer = owner_.buffer();
- if (!buffer) {
- model_->clear();
- setEnabled(false);
- text_class_ = 0;
- inset_ = 0;
- return;
- }
-
- // we'll only update the layout list if the text class has changed
- // or we've moved from one inset to another
- DocumentClass const * text_class = &buffer->params().documentClass();
- Inset const * inset =
- owner_.view()->cursor().innerParagraph().inInset();
- if (!reset && text_class_ == text_class && inset_ == inset) {
- set(owner_.view()->cursor().innerParagraph().layout().name());
- return;
- }
-
- inset_ = inset;
- text_class_ = text_class;
-
- model_->clear();
- DocumentClass::const_iterator lit = text_class_->begin();
- DocumentClass::const_iterator len = text_class_->end();
-
- for (; lit != len; ++lit) {
- docstring const & name = lit->name();
- bool const useEmpty = inset_->forcePlainLayout() || inset_->usePlainLayout();
- // if this inset requires the empty layout, we skip the default
- // layout
- if (name == text_class_->defaultLayoutName() && inset_ && useEmpty)
- continue;
- // if it doesn't require the empty layout, we skip it
- if (name == text_class_->emptyLayoutName() && inset_ && !useEmpty)
- continue;
- addItemSort(name, lit->category(), lyxrc.sort_layouts, lyxrc.group_layouts);
- }
-
- set(owner_.view()->cursor().innerParagraph().layout().name());
- countCategories();
-
- // needed to recalculate size hint
- hide();
- setMinimumWidth(sizeHint().width());
- setEnabled(!buffer->isReadonly());
- show();
-}
-
-
-void GuiLayoutBox::selected(int index)
-{
- // get selection
- QModelIndex mindex = filterModel_->mapToSource(filterModel_->index(index, 1));
- docstring const layoutName =
- qstring_to_ucs4(model_->itemFromIndex(mindex)->text());
-
- owner_.setFocus();
-
- if (!text_class_) {
- updateContents(false);
- resetFilter();
- return;
- }
-
- // find corresponding text class
- if (text_class_->hasLayout(layoutName)) {
- FuncRequest const func(LFUN_LAYOUT, layoutName, FuncRequest::TOOLBAR);
- theLyXFunc().setLyXView(&owner_);
- lyx::dispatch(func);
- updateContents(false);
- resetFilter();
- return;
- }
- LYXERR0("ERROR (layoutSelected): layout not found!");
-}
-
-
-
-/////////////////////////////////////////////////////////////////////
-//
-// GuiToolbar
-//
-/////////////////////////////////////////////////////////////////////
-
-