mirror of
https://git.lyx.org/repos/lyx.git
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401 lines
9.0 KiB
C++
401 lines
9.0 KiB
C++
/**
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* \file TocModel.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author John Levon
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* \author Abdelrazak Younes
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "TocModel.h"
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#include "Buffer.h"
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#include "BufferView.h"
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#include "Cursor.h"
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#include "DocIterator.h"
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#include "FuncRequest.h"
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#include "LyX.h"
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#include "qt_helpers.h"
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#include "TocBackend.h"
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#include "support/debug.h"
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#include "support/lassert.h"
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#include <QSortFilterProxyModel>
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#include <QStandardItemModel>
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#include <climits>
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using namespace std;
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namespace lyx {
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namespace frontend {
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/// A QStandardItemModel that gives access to the reset methods.
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/// This is needed in order to fix http://www.lyx.org/trac/ticket/3740
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// FIXME: Better appropriately subclass QStandardItemModel and implement
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// the toc-specific reset methods there.
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class TocTypeModel : public QStandardItemModel
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{
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public:
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///
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TocTypeModel(QObject * parent) : QStandardItemModel(parent)
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{}
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///
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void reset()
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{
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QStandardItemModel::beginResetModel();
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QStandardItemModel::endResetModel();
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}
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///
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void beginResetModel()
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{
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QStandardItemModel::beginResetModel();
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}
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///
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void endResetModel()
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{
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QStandardItemModel::endResetModel();
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}
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};
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///////////////////////////////////////////////////////////////////////////////
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//
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// TocModel
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//
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///////////////////////////////////////////////////////////////////////////////
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TocModel::TocModel(QObject * parent)
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: model_(new TocTypeModel(parent)),
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sorted_model_(new QSortFilterProxyModel(parent)),
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is_sorted_(false), toc_(new Toc()),
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maxdepth_(0), mindepth_(0)
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{
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sorted_model_->setSortLocaleAware(true);
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sorted_model_->setSourceModel(model_);
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}
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QAbstractItemModel * TocModel::model()
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{
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if (is_sorted_)
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return sorted_model_;
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return model_;
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}
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QAbstractItemModel const * TocModel::model() const
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{
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if (is_sorted_)
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return sorted_model_;
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return model_;
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}
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void TocModel::clear()
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{
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model_->blockSignals(true);
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model_->clear();
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toc_ = make_shared<Toc>();
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model_->blockSignals(false);
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}
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void TocModel::sort(bool sort_it)
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{
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is_sorted_ = sort_it;
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if (is_sorted_)
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sorted_model_->sort(0);
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}
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TocItem const & TocModel::tocItem(QModelIndex const & index) const
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{
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return (*toc_)[model()->data(index, Qt::UserRole).toUInt()];
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}
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QModelIndex TocModel::modelIndex(DocIterator const & dit) const
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{
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if (toc_->empty())
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return QModelIndex();
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unsigned int const toc_index = TocBackend::findItem(*toc_, dit) -
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toc_->begin();
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QModelIndexList list = model()->match(model()->index(0, 0), Qt::UserRole,
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QVariant(toc_index), 1,
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Qt::MatchFlags(Qt::MatchExactly | Qt::MatchRecursive));
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LASSERT(!list.isEmpty(), return QModelIndex());
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return list[0];
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}
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void TocModel::reset()
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{
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model_->reset();
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}
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void TocModel::updateItem(DocIterator const & dit)
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{
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QModelIndex index = modelIndex(dit);
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TocItem const & toc_item = tocItem(index);
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model_->setData(index, toqstr(toc_item.asString()), Qt::DisplayRole);
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model_->setData(index, toqstr(toc_item.tooltip()), Qt::ToolTipRole);
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}
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void TocModel::reset(shared_ptr<Toc const> toc)
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{
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toc_ = toc;
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if (toc_->empty()) {
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maxdepth_ = 0;
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mindepth_ = 0;
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reset();
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return;
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}
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model_->blockSignals(true);
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model_->beginResetModel();
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model_->insertColumns(0, 1);
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maxdepth_ = 0;
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mindepth_ = INT_MAX;
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size_t end = toc_->size();
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for (unsigned int index = 0; index != end; ++index) {
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TocItem const & item = (*toc_)[index];
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maxdepth_ = max(maxdepth_, item.depth());
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mindepth_ = min(mindepth_, item.depth());
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int current_row = model_->rowCount();
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model_->insertRows(current_row, 1);
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QModelIndex top_level_item = model_->index(current_row, 0);
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model_->setData(top_level_item, toqstr(item.asString()), Qt::DisplayRole);
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model_->setData(top_level_item, index, Qt::UserRole);
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model_->setData(top_level_item, toqstr(item.tooltip()), Qt::ToolTipRole);
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LYXERR(Debug::GUI, "Toc: at depth " << item.depth()
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<< ", added item " << item.asString());
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populate(index, top_level_item);
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if (index >= end)
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break;
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}
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model_->setHeaderData(0, Qt::Horizontal, QVariant("title"), Qt::DisplayRole);
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sorted_model_->setSourceModel(model_);
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if (is_sorted_)
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sorted_model_->sort(0);
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model_->blockSignals(false);
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model_->endResetModel();
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}
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void TocModel::populate(unsigned int & index, QModelIndex const & parent)
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{
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int curdepth = (*toc_)[index].depth() + 1;
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QModelIndex child_item;
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model_->insertColumns(0, 1, parent);
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size_t end = toc_->size();
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++index;
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for (; index != end; ++index) {
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TocItem const & item = (*toc_)[index];
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if (item.depth() < curdepth) {
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--index;
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return;
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}
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maxdepth_ = max(maxdepth_, item.depth());
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mindepth_ = min(mindepth_, item.depth());
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int current_row = model_->rowCount(parent);
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model_->insertRows(current_row, 1, parent);
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child_item = model_->index(current_row, 0, parent);
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model_->setData(child_item, toqstr(item.asString()), Qt::DisplayRole);
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model_->setData(child_item, index, Qt::UserRole);
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model_->setData(child_item, toqstr(item.tooltip()), Qt::ToolTipRole);
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populate(index, child_item);
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if (index >= end)
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break;
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}
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}
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int TocModel::modelDepth() const
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{
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int const d = maxdepth_ - mindepth_;
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LASSERT(d >= 0 && d <= 100, return 0);
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return d;
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}
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///////////////////////////////////////////////////////////////////////////////
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//
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// TocModels
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//
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///////////////////////////////////////////////////////////////////////////////
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TocModels::TocModels()
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: bv_(0)
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{
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names_ = new TocTypeModel(this);
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names_sorted_ = new TocModelSortProxyModel(this);
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names_sorted_->setSourceModel(names_);
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names_sorted_->setSortLocaleAware(true);
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names_sorted_->sort(0);
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}
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void TocModels::clear()
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{
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names_->blockSignals(true);
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names_->clear();
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names_->blockSignals(false);
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iterator end = models_.end();
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for (iterator it = models_.begin(); it != end; ++it)
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it.value()->clear();
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}
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int TocModels::depth(QString const & type)
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{
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const_iterator it = models_.find(type);
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if (!bv_ || it == models_.end())
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return 0;
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return it.value()->modelDepth();
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}
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QAbstractItemModel * TocModels::model(QString const & type)
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{
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if (!bv_)
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return 0;
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iterator it = models_.find(type);
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if (it != models_.end())
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return it.value()->model();
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LYXERR0("type not found: " << type);
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return 0;
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}
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QAbstractItemModel * TocModels::nameModel()
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{
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return names_sorted_;
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}
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QModelIndex TocModels::currentIndex(QString const & type) const
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{
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const_iterator it = models_.find(type);
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if (!bv_ || it == models_.end())
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return QModelIndex();
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return it.value()->modelIndex(bv_->cursor());
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}
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void TocModels::goTo(QString const & type, QModelIndex const & index) const
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{
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const_iterator it = models_.find(type);
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if (it == models_.end() || !index.isValid()) {
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LYXERR(Debug::GUI, "TocModels::goTo(): QModelIndex is invalid!");
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return;
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}
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LASSERT(index.model() == it.value()->model(), return);
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TocItem const item = it.value()->tocItem(index);
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LYXERR(Debug::GUI, "TocModels::goTo " << item.asString());
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dispatch(item.action());
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}
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TocItem const TocModels::currentItem(QString const & type,
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QModelIndex const & index) const
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{
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const_iterator it = models_.find(type);
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if (it == models_.end() || !index.isValid()) {
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LYXERR(Debug::GUI, "TocModels::currentItem(): QModelIndex is invalid!");
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return TocItem();
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}
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LASSERT(index.model() == it.value()->model(), return TocItem());
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return it.value()->tocItem(index);
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}
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void TocModels::updateItem(QString const & type, DocIterator const & dit)
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{
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models_[type]->updateItem(dit);
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}
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void TocModels::reset(BufferView const * bv)
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{
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bv_ = bv;
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clear();
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if (!bv_) {
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iterator end = models_.end();
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for (iterator it = models_.begin(); it != end; ++it)
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it.value()->reset();
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names_->reset();
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return;
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}
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names_->blockSignals(true);
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names_->beginResetModel();
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names_->insertColumns(0, 1);
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TocList const & tocs = bv_->buffer().masterBuffer()->tocBackend().tocs();
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TocList::const_iterator it = tocs.begin();
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TocList::const_iterator toc_end = tocs.end();
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for (; it != toc_end; ++it) {
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QString const type = toqstr(it->first);
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// First, fill in the toc models.
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iterator mod_it = models_.find(type);
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if (mod_it == models_.end())
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mod_it = models_.insert(type, new TocModel(this));
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mod_it.value()->reset(it->second);
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// Fill in the names_ model.
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QString const gui_name = guiName(it->first, bv->buffer().params());
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int const current_row = names_->rowCount();
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names_->insertRows(current_row, 1);
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QModelIndex const index = names_->index(current_row, 0);
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names_->setData(index, gui_name, Qt::DisplayRole);
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names_->setData(index, type, Qt::UserRole);
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}
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names_->blockSignals(false);
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names_->endResetModel();
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}
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bool TocModels::isSorted(QString const & type) const
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{
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const_iterator it = models_.find(type);
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if (it == models_.end()) {
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LYXERR0("type not found: " << type);
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return false;
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}
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return it.value()->isSorted();
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}
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void TocModels::sort(QString const & type, bool sort_it)
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{
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iterator it = models_.find(type);
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if (it == models_.end())
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LYXERR0("type not found: " << type);
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else
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it.value()->sort(sort_it);
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}
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} // namespace frontend
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} // namespace lyx
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#include "moc_TocModel.cpp"
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