lyx_mirror/src/frontends/qt4/TocWidget.cpp
Abdelrazak Younes 94674dec6a revision 18202: I forgot this one.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@18203 a592a061-630c-0410-9148-cb99ea01b6c8
2007-05-04 17:46:03 +00:00

309 lines
6.9 KiB
C++

/**
* \file TocWidget.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 "TocWidget.h"
#include "QToc.h"
#include "qt_helpers.h"
#include "support/filetools.h"
#include "support/lstrings.h"
#include "debug.h"
#include <QHeaderView>
#include <QPushButton>
#include <QTreeWidgetItem>
#include <vector>
#include <string>
#include <stack>
using std::endl;
using std::pair;
using std::stack;
using std::vector;
using std::string;
namespace lyx {
using support::FileName;
using support::libFileSearch;
namespace frontend {
TocWidget::TocWidget(QToc * form, QWidget * parent)
: QWidget(parent), form_(form), depth_(0)
{
setupUi(this);
connect(form, SIGNAL(modelReset()),
SLOT(updateGui()));
FileName icon_path = libFileSearch("images", "promote.xpm");
moveOutTB->setIcon(QIcon(toqstr(icon_path.absFilename())));
icon_path = libFileSearch("images", "demote.xpm");
moveInTB->setIcon(QIcon(toqstr(icon_path.absFilename())));
icon_path = libFileSearch("images", "up.xpm");
moveUpTB->setIcon(QIcon(toqstr(icon_path.absFilename())));
icon_path = libFileSearch("images", "down.xpm");
moveDownTB->setIcon(QIcon(toqstr(icon_path.absFilename())));
icon_path = libFileSearch("images", "reload.xpm");
updateTB->setIcon(QIcon(toqstr(icon_path.absFilename())));
// avoid flickering
tocTV->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
tocTV->showColumn(0);
// hide the pointless QHeader for now
// in the future, new columns may appear
// like labels, bookmarks, etc...
// tocTV->header()->hide();
tocTV->header()->setVisible(false);
// Only one item selected at a time.
tocTV->setSelectionMode(QAbstractItemView::SingleSelection);
}
void TocWidget::selectionChanged(const QModelIndex & current,
const QModelIndex & /*previous*/)
{
LYXERR(Debug::GUI)
<< "selectionChanged index " << current.row()
<< ", " << current.column()
<< endl;
form_->goTo(typeCO->currentIndex(), current);
}
void TocWidget::on_updateTB_clicked()
{
form_->updateBackend();
form_->update();
update();
}
/* FIXME (Ugras 17/11/06):
I have implemented a getIndexDepth function to get the model indices. In my
opinion, somebody should derive a new qvariant class for tocModelItem
which saves the string data and depth information. that will save the
depth calculation.
*/
int TocWidget::getIndexDepth(QModelIndex const & index, int depth)
{
++depth;
return (index.parent() == QModelIndex())? depth : getIndexDepth(index.parent(),depth);
}
void TocWidget::on_depthSL_valueChanged(int depth)
{
if (depth == depth_)
return;
setTreeDepth(depth);
}
void TocWidget::setTreeDepth(int depth)
{
depth_ = depth;
// expanding and then collapsing is probably better,
// but my qt 4.1.2 doesn't have expandAll()..
//tocTV->expandAll();
QModelIndexList indices = tocTV->model()->match(
tocTV->model()->index(0,0),
Qt::DisplayRole, "*", -1,
Qt::MatchWildcard|Qt::MatchRecursive);
int size = indices.size();
for (int i = 0; i < size; i++) {
QModelIndex index = indices[i];
if (getIndexDepth(index) < depth_)
tocTV->expand(index);
else
tocTV->collapse(index);
}
}
void TocWidget::on_typeCO_activated(int value)
{
setTocModel(value);
}
void TocWidget::on_moveUpTB_clicked()
{
enableControls(false);
QModelIndexList const & list = tocTV->selectionModel()->selectedIndexes();
if (!list.isEmpty()) {
enableControls(false);
form_->goTo(typeCO->currentIndex(), list[0]);
form_->outlineUp();
enableControls(true);
}
}
void TocWidget::on_moveDownTB_clicked()
{
enableControls(false);
QModelIndexList const & list = tocTV->selectionModel()->selectedIndexes();
if (!list.isEmpty()) {
enableControls(false);
form_->goTo(typeCO->currentIndex(), list[0]);
form_->outlineDown();
enableControls(true);
}
}
void TocWidget::on_moveInTB_clicked()
{
enableControls(false);
QModelIndexList const & list = tocTV->selectionModel()->selectedIndexes();
if (!list.isEmpty()) {
enableControls(false);
form_->goTo(typeCO->currentIndex(), list[0]);
form_->outlineIn();
enableControls(true);
}
}
void TocWidget::on_moveOutTB_clicked()
{
QModelIndexList const & list = tocTV->selectionModel()->selectedIndexes();
if (!list.isEmpty()) {
enableControls(false);
form_->goTo(typeCO->currentIndex(), list[0]);
form_->outlineOut();
enableControls(true);
}
}
void TocWidget::select(QModelIndex const & index)
{
if (!index.isValid()) {
LYXERR(Debug::GUI)
<< "TocWidget::select(): QModelIndex is invalid!" << endl;
return;
}
tocTV->selectionModel()->blockSignals(true);
tocTV->selectionModel()->clear();
tocTV->scrollTo(index);
tocTV->selectionModel()->setCurrentIndex(index,
QItemSelectionModel::ClearAndSelect);
tocTV->selectionModel()->blockSignals(false);
}
void TocWidget::enableControls(bool enable)
{
updateTB->setEnabled(enable);
if (!form_->canOutline(typeCO->currentIndex()))
enable = false;
moveUpTB->setEnabled(enable);
moveDownTB->setEnabled(enable);
moveInTB->setEnabled(enable);
moveOutTB->setEnabled(enable);
depthSL->setEnabled(enable);
}
void TocWidget::update()
{
LYXERR(Debug::GUI) << "In TocWidget::update()" << endl;
select(form_->getCurrentIndex(typeCO->currentIndex()));
QWidget::update();
}
void TocWidget::updateGui()
{
QStringListModel * type_model = form_->typeModel();
if (type_model->stringList().isEmpty()) {
enableControls(false);
typeCO->setModel(type_model);
tocTV->setModel(new QStandardItemModel);
tocTV->setEditTriggers(QAbstractItemView::NoEditTriggers);
return;
}
QString current_text = typeCO->currentText();
typeCO->setModel(type_model);
int const current_type = typeCO->findText(current_text);
if (current_type != -1)
typeCO->setCurrentIndex(current_type);
else
typeCO->setCurrentIndex(form_->selectedType());
setTocModel(typeCO->currentIndex());
}
void TocWidget::setTocModel(size_t type)
{
bool controls_enabled = false;
QStandardItemModel * toc_model = form_->tocModel(type);
if (toc_model) {
controls_enabled = toc_model->rowCount() > 0;
tocTV->setModel(toc_model);
tocTV->setEditTriggers(QAbstractItemView::NoEditTriggers);
}
enableControls(controls_enabled);
reconnectSelectionModel();
if (controls_enabled) {
depthSL->setMaximum(form_->getTocDepth(type));
depthSL->setValue(depth_);
}
LYXERR(Debug::GUI) << "In TocWidget::updateGui()" << endl;
select(form_->getCurrentIndex(typeCO->currentIndex()));
if (toc_model) {
LYXERR(Debug::GUI)
<< "form_->tocModel()->rowCount "
<< toc_model->rowCount()
<< "\nform_->tocModel()->columnCount "
<< toc_model->columnCount()
<< endl;
}
}
void TocWidget::reconnectSelectionModel()
{
connect(tocTV->selectionModel(),
SIGNAL(currentChanged(const QModelIndex &, const QModelIndex &)),
this, SLOT(selectionChanged(const QModelIndex &, const QModelIndex &)));
}
} // namespace frontend
} // namespace lyx
#include "TocWidget_moc.cpp"