lyx_mirror/src/frontends/qt4/TocModel.cpp

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/**
* \file TocModel.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author John Levon
* \author Abdelrazak Younes
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "TocModel.h"
#include "Buffer.h"
#include "BufferView.h"
#include "Cursor.h"
#include "DocIterator.h"
#include "FuncRequest.h"
#include "LyXFunc.h"
#include "support/convert.h"
#include "support/debug.h"
#include "support/lassert.h"
#include <climits>
using namespace std;
namespace lyx {
namespace frontend {
typedef std::pair<QModelIndex, TocIterator> TocPair;
TocIterator TocModel::tocIterator(QModelIndex const & index) const
{
TocMap::const_iterator map_it = toc_map_.find(index);
LASSERT(map_it != toc_map_.end(), /**/);
return map_it->second;
}
QModelIndex TocModel::modelIndex(TocIterator const & it) const
{
ModelMap::const_iterator map_it = model_map_.find(it);
//LASSERT(it != model_map_.end(), /**/);
if (map_it == model_map_.end())
return QModelIndex();
return map_it->second;
}
void TocModel::clear()
{
QStandardItemModel::clear();
toc_map_.clear();
model_map_.clear();
removeRows(0, rowCount());
removeColumns(0, columnCount());
}
void TocModel::populate(Toc const & toc)
{
clear();
if (toc.empty())
return;
int current_row;
QModelIndex top_level_item;
TocIterator iter = toc.begin();
TocIterator end = toc.end();
insertColumns(0, 1);
maxdepth_ = 0;
mindepth_ = INT_MAX;
while (iter != end) {
maxdepth_ = max(maxdepth_, iter->depth());
mindepth_ = min(mindepth_, iter->depth());
current_row = rowCount();
insertRows(current_row, 1);
top_level_item = QStandardItemModel::index(current_row, 0);
//setData(top_level_item, toqstr(iter->str()));
setData(top_level_item, toqstr(iter->str()), Qt::DisplayRole);
// This looks like a gcc bug, in principle this should work:
//toc_map_[top_level_item] = iter;
// but it crashes with gcc-4.1 and 4.0.2
toc_map_.insert( TocPair(top_level_item, iter) );
model_map_[iter] = top_level_item;
LYXERR(Debug::GUI, "Toc: at depth " << iter->depth()
<< ", added item " << toqstr(iter->str()));
populate(iter, end, top_level_item);
if (iter == end)
break;
++iter;
}
setHeaderData(0, Qt::Horizontal, QVariant("title"), Qt::DisplayRole);
// emit headerDataChanged();
}
void TocModel::populate(TocIterator & iter, TocIterator const & end,
QModelIndex const & parent)
{
int curdepth = iter->depth() + 1;
int current_row;
QModelIndex child_item;
insertColumns(0, 1, parent);
while (iter != end) {
++iter;
if (iter == end)
break;
if (iter->depth() < curdepth) {
--iter;
return;
}
maxdepth_ = max(maxdepth_, iter->depth());
mindepth_ = min(mindepth_, iter->depth());
current_row = rowCount(parent);
insertRows(current_row, 1, parent);
child_item = QStandardItemModel::index(current_row, 0, parent);
//setData(child_item, toqstr(iter->str()));
setData(child_item, toqstr(iter->str()), Qt::DisplayRole);
// This looks like a gcc bug, in principle this should work:
//toc_map_[child_item] = iter;
// but it crashes with gcc-4.1 and 4.0.2
toc_map_.insert( TocPair(child_item, iter) );
model_map_[iter] = child_item;
populate(iter, end, child_item);
}
}
int TocModel::modelDepth() const
{
return maxdepth_ - mindepth_;
}
///////////////////////////////////////////////////////////////////////////////
// TocModels implementation.
///////////////////////////////////////////////////////////////////////////////
void TocModels::clear()
{
types_.clear();
type_names_.clear();
const unsigned int size = models_.size();
for (unsigned int i = 0; i < size; ++i) {
delete models_[i];
}
models_.clear();
}
int TocModels::depth(int type)
{
if (type < 0)
return 0;
return models_[type]->modelDepth();
}
QStandardItemModel * TocModels::model(int type)
{
if (type < 0)
return 0;
if (models_.empty()) {
LYXERR(Debug::GUI, "TocModels::tocModel(): no types available ");
return 0;
}
LYXERR(Debug::GUI, "TocModels: type " << type
<< " models_.size() " << models_.size());
LASSERT(type >= 0 && type < int(models_.size()), /**/);
return models_[type];
}
QModelIndex TocModels::currentIndex(int type) const
{
if (type < 0 || !bv_)
return QModelIndex();
TocIterator const it = bv_->buffer().masterBuffer()->tocBackend().item(
fromqstr(types_[type]), bv_->cursor());
return models_[type]->modelIndex(it);
}
void TocModels::goTo(int type, QModelIndex const & index) const
{
if (type < 0 || !index.isValid()
|| index.model() != models_[type]) {
LYXERR(Debug::GUI, "TocModels::goTo(): QModelIndex is invalid!");
return;
}
LASSERT(type >= 0 && type < int(models_.size()), /**/);
TocIterator const it = models_[type]->tocIterator(index);
LYXERR(Debug::GUI, "TocModels::goTo " << it->str());
dispatch(it->action());
}
void TocModels::updateBackend() const
{
bv_->buffer().masterBuffer()->tocBackend().update();
bv_->buffer().structureChanged();
}
void TocModels::reset(BufferView const * bv)
{
bv_ = bv;
clear();
if (!bv_)
return;
TocList const & tocs = bv_->buffer().masterBuffer()->tocBackend().tocs();
TocList::const_iterator it = tocs.begin();
TocList::const_iterator end = tocs.end();
for (; it != end; ++it) {
types_.push_back(toqstr(it->first));
type_names_.push_back(guiName(it->first, bv->buffer().params()));
models_.push_back(new TocModel(it->second));
}
}
bool TocModels::canOutline(int type) const
{
if (type < 0 || type >= types_.size())
return false;
return types_[type] == "tableofcontents";
}
int TocModels::decodeType(QString const & str) const
{
QString new_type;
if (str.contains("tableofcontents")) {
new_type = "tableofcontents";
} else if (str.contains("floatlist")) {
if (str.contains("\"figure"))
new_type = "figure";
else if (str.contains("\"table"))
new_type = "table";
else if (str.contains("\"algorithm"))
new_type = "algorithm";
} else if (!str.isEmpty()) {
new_type = str;
} else {
// Default to Outliner.
new_type = "tableofcontents";
}
return types_.indexOf(new_type);
}
} // namespace frontend
} // namespace lyx
#include "TocModel_moc.cpp"