-namespace {
-
-struct PngMap {
- QString key;
- QString value;
-};
-
-
-bool operator<(PngMap const & lhs, PngMap const & rhs)
-{
- return lhs.key < rhs.key;
-}
-
-
-class CompareKey {
-public:
- CompareKey(QString const & name) : name_(name) {}
- bool operator()(PngMap const & other) const { return other.key == name_; }
-private:
- QString const name_;
-};
-
-
-PngMap sorted_png_map[] = {
- { "Bumpeq", "bumpeq2" },
- { "Cap", "cap2" },
- { "Cup", "cup2" },
- { "Delta", "delta2" },
- { "Downarrow", "downarrow2" },
- { "Gamma", "gamma2" },
- { "Lambda", "lambda2" },
- { "Leftarrow", "leftarrow2" },
- { "Leftrightarrow", "leftrightarrow2" },
- { "Longleftarrow", "longleftarrow2" },
- { "Longleftrightarrow", "longleftrightarrow2" },
- { "Longrightarrow", "longrightarrow2" },
- { "Omega", "omega2" },
- { "Phi", "phi2" },
- { "Pi", "pi2" },
- { "Psi", "psi2" },
- { "Rightarrow", "rightarrow2" },
- { "Sigma", "sigma2" },
- { "Subset", "subset2" },
- { "Supset", "supset2" },
- { "Theta", "theta2" },
- { "Uparrow", "uparrow2" },
- { "Updownarrow", "updownarrow2" },
- { "Upsilon", "upsilon2" },
- { "Vdash", "vdash3" },
- { "Xi", "xi2" },
- { "nLeftarrow", "nleftarrow2" },
- { "nLeftrightarrow", "nleftrightarrow2" },
- { "nRightarrow", "nrightarrow2" },
- { "nVDash", "nvdash3" },
- { "nvDash", "nvdash2" },
- { "textrm \\AA", "textrm_AA"},
- { "textrm \\O", "textrm_O"},
- { "vDash", "vdash2" }
-};
-
-size_t const nr_sorted_png_map = sizeof(sorted_png_map) / sizeof(PngMap);
-
-
-QString findPng(QString const & name)
-{
- PngMap const * const begin = sorted_png_map;
- PngMap const * const end = begin + nr_sorted_png_map;
- BOOST_ASSERT(sorted(begin, end));
-
- PngMap const * const it = find_if(begin, end, CompareKey(name));
-
- QString png_name;
- if (it != end) {
- png_name = it->value;
- } else {
- png_name = name;
- png_name.replace('_', "underscore");
- png_name.replace(' ', '_');
-
- // This way we can have "math-delim { }" on the toolbar.
- png_name.replace('(', "lparen");
- png_name.replace(')', "rparen");
- png_name.replace('[', "lbracket");
- png_name.replace(']', "rbracket");
- png_name.replace('{', "lbrace");
- png_name.replace('}', "rbrace");
- png_name.replace('|', "bars");
- png_name.replace(',', "thinspace");
- png_name.replace(':', "mediumspace");
- png_name.replace(';', "thickspace");
- png_name.replace('!', "negthinspace");
- }
-
- LYXERR(Debug::GUI, "findPng(" << fromqstr(name) << ")\n"
- << "Looking for math PNG called \"" << fromqstr(png_name) << '"');
- return png_name;
-}
-
-} // namespace anon
-
-
-/// return a icon for the given action
-static QIcon getIcon(FuncRequest const & f, bool unknown)
-{
- initializeResources();
- QPixmap pm;
- QString name1;
- QString name2;
- QString path;
- switch (f.action) {
- case LFUN_MATH_INSERT:
- if (!f.argument().empty()) {
- path = "math/";
- name1 = findPng(toqstr(f.argument()).mid(1));
- }
- break;
- case LFUN_MATH_DELIM:
- case LFUN_MATH_BIGDELIM:
- path = "math/";
- name1 = findPng(toqstr(f.argument()));
- break;
- case LFUN_CALL:
- path = "commands/";
- name1 = toqstr(f.argument());
- break;
- default:
- name2 = toqstr(lyxaction.getActionName(f.action));
- name1 = name2;
-
- if (!f.argument().empty()) {
- name1 = name2 + ' ' + toqstr(f.argument());
- name1.replace(' ', '_');
- }
- }
-
- string fullname = libFileSearch("images/" + path, name1, "png").absFilename();
- if (pm.load(toqstr(fullname)))
- return pm;
-
- fullname = libFileSearch("images/" + path, name2, "png").absFilename();
- if (pm.load(toqstr(fullname)))
- return pm;
-
- if (pm.load(":/images/" + path + name1 + ".png"))
- return pm;
-
- if (pm.load(":/images/" + path + name2 + ".png"))
- return pm;
-
- LYXERR(Debug::GUI, "Cannot find icon for command \""
- << lyxaction.getActionName(f.action)
- << '(' << to_utf8(f.argument()) << ")\"");
- if (unknown)
- pm.load(":/images/unknown.png");
-
- return pm;
-}
-
-
-/////////////////////////////////////////////////////////////////////
-//
-// 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);
- BOOST_ASSERT(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(GuiView & owner)
- : owner_(owner), 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)));
- 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.
- BOOST_ASSERT(!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.
- BOOST_ASSERT(!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::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()) {
- lyxerr << "Trying to select non existent layout type "
- << fromqstr(name) << endl;
- return;
- }
-
- setCurrentIndex(filterModel_->mapFromSource(r.first()->index()).row());
-}
-
-
-void GuiLayoutBox::addItemSort(docstring const & item, docstring const & category,
- bool sorted, bool sortedByCat)