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fixed auto-scrolling in NewFriendList

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This commit is contained in:
csoler 2021-02-28 15:50:18 +01:00
parent 3e4841426d
commit 761a4ee3ef
2 changed files with 96 additions and 41 deletions
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129
retroshare-gui/src/gui/common/NewFriendList.cpp
View File

@ -99,8 +99,11 @@
/******
* #define FRIENDS_DEBUG 1
* #define DEBUG_NEW_FRIEND_LIST 1
*****/
#define DEBUG_NEW_FRIEND_LIST 1
Q_DECLARE_METATYPE(ElidedLabel*)
class FriendListSortFilterProxyModel: public QSortFilterProxyModel
@ -284,21 +287,6 @@ void NewFriendList::itemCollapsed(const QModelIndex& index)
mModel->collapseItem(mProxyModel->mapToSource(index));
}
void NewFriendList::sortColumn(int col,Qt::SortOrder so)
{
std::set<QString> expanded_indexes;
std::set<QString> selected_indexes;
saveExpandedPathsAndSelection(expanded_indexes, selected_indexes);
mProxyModel->setSortingEnabled(true);
mProxyModel->sort(col,so);
mProxyModel->setSortingEnabled(false);
restoreExpandedPathsAndSelection(expanded_indexes, selected_indexes);
mLastSortColumn = col;
mLastSortOrder = so;
}
void NewFriendList::headerContextMenuRequested(QPoint /*p*/)
{
QMenu displayMenu(tr("Show Items"), this);
@ -381,75 +369,109 @@ void NewFriendList::addToolButton(QToolButton *toolButton)
ui->titleBarFrame->layout()->addWidget(toolButton);
}
void NewFriendList::saveExpandedPathsAndSelection(std::set<QString>& expanded_indexes, std::set<QString>& selected_indexes)
void NewFriendList::saveExpandedPathsAndSelection(std::set<QString>& expanded_indexes, QString& sel)
{
QModelIndexList selectedIndexes = ui->peerTreeWidget->selectionModel()->selectedIndexes();
QModelIndex current_index = selectedIndexes.empty()?QModelIndex():(*selectedIndexes.begin());
#ifdef DEBUG_NEW_FRIEND_LIST
std::cerr << "Saving expended paths and selection..." << std::endl;
#endif
for(int row = 0; row < mProxyModel->rowCount(); ++row)
recursSaveExpandedItems(mProxyModel->index(row,0),QString(),expanded_indexes,selected_indexes);
recursSaveExpandedItems(mProxyModel->index(row,0),current_index,QString(),expanded_indexes,sel);
#ifdef DEBUG_NEW_FRIEND_LIST
std::cerr << " selected index: \"" << sel.toStdString() << "\"" << std::endl;
#endif
}
void NewFriendList::restoreExpandedPathsAndSelection(const std::set<QString>& expanded_indexes, const std::set<QString>& selected_indexes)
void NewFriendList::restoreExpandedPathsAndSelection(const std::set<QString>& expanded_indexes,const QString& index_to_select,QModelIndex& selected_index)
{
#ifdef DEBUG_NEW_FRIEND_LIST
std::cerr << "Restoring expended paths and selection..." << std::endl;
std::cerr << " index to select: \"" << index_to_select.toStdString() << "\"" << std::endl;
#endif
ui->peerTreeWidget->blockSignals(true) ;
for(int row = 0; row < mProxyModel->rowCount(); ++row)
recursRestoreExpandedItems(mProxyModel->index(row,0),QString(),expanded_indexes,selected_indexes);
recursRestoreExpandedItems(mProxyModel->index(row,0),QString(),expanded_indexes,index_to_select,selected_index);
ui->peerTreeWidget->blockSignals(false) ;
}
void NewFriendList::recursSaveExpandedItems(const QModelIndex& index,const QString& parent_path,std::set<QString>& exp, std::set<QString>& sel)
void NewFriendList::recursSaveExpandedItems(const QModelIndex& index,const QModelIndex& current_index,const QString& parent_path,std::set<QString>& exp, QString& sel)
{
QString local_path = parent_path + index.sibling(index.row(),RsFriendListModel::COLUMN_THREAD_ID).data(Qt::DisplayRole).toString() + " ";
if(ui->peerTreeWidget->selectionModel()->selection().contains(index))
sel.insert(local_path) ;
#ifdef DEBUG_NEW_FRIEND_LIST
std::cerr << " At index " << index.row() << ". data[1]=" << local_path.toStdString() ;
#endif
if(ui->peerTreeWidget->isExpanded(index))
{
#ifdef DEBUG_NEW_FRIEND_LIST
std::cerr << "Index " << local_path.toStdString() << " is expanded." << std::endl;
std::cerr << " Index is expanded." ;
#endif
if(index.isValid())
exp.insert(local_path) ;
for(int row=0;row<mProxyModel->rowCount(index);++row)
recursSaveExpandedItems(index.child(row,0),local_path,exp,sel) ;
recursSaveExpandedItems(index.child(row,0),current_index,local_path,exp,sel) ;
}
#ifdef DEBUG_NEW_FRIEND_LIST
else
std::cerr << "Index " << local_path.toStdString() << " is not expanded." << std::endl;
std::cerr << " not expanded." ;
#endif
if(index == current_index)
{
#ifdef DEBUG_NEW_FRIEND_LIST
std::cerr << " adding to selection!" << std::endl;
#endif
sel = local_path ;
}
#ifdef DEBUG_NEW_FRIEND_LIST
else
std::cerr << std::endl;
#endif
}
void NewFriendList::recursRestoreExpandedItems(const QModelIndex& index, const QString& parent_path, const std::set<QString>& exp, const std::set<QString> &sel)
void NewFriendList::recursRestoreExpandedItems(const QModelIndex& index, const QString& parent_path, const std::set<QString>& exp, const QString& sel,QModelIndex& selected_index)
{
QString local_path = parent_path + index.sibling(index.row(),RsFriendListModel::COLUMN_THREAD_ID).data(Qt::DisplayRole).toString() + " ";
#ifdef DEBUG_NEW_FRIEND_LIST
std::cerr << "at index " << index.row() << ". data[1]=" << local_path.toStdString() << std::endl;
std::cerr << " At index " << index.row() << ". data[1]=" << local_path.toStdString() ;
#endif
if(sel.find(local_path) != sel.end())
ui->peerTreeWidget->selectionModel()->select(index, QItemSelectionModel::Select | QItemSelectionModel::Rows);
if(exp.find(local_path) != exp.end())
{
#ifdef DEBUG_NEW_FRIEND_LIST
std::cerr << "re expanding index " << local_path.toStdString() << std::endl;
std::cerr << " re expanding " << std::endl;
#endif
ui->peerTreeWidget->setExpanded(index,true) ;
for(int row=0;row<mProxyModel->rowCount(index);++row)
recursRestoreExpandedItems(index.child(row,0),local_path,exp,sel) ;
recursRestoreExpandedItems(index.child(row,0),local_path,exp,sel,selected_index) ;
}
if(sel == local_path)
{
#ifdef DEBUG_NEW_FRIEND_LIST
std::cerr << " selecting index \"" << local_path.toStdString() << "\"" << std::endl;
#endif
ui->peerTreeWidget->selectionModel()->select(index, QItemSelectionModel::Select | QItemSelectionModel::Rows);
selected_index = index;
}
#ifdef DEBUG_NEW_FRIEND_LIST
else
std::cerr << std::endl;
#endif
}
@ -1101,9 +1123,14 @@ void NewFriendList::removeGroup()
void NewFriendList::applyWhileKeepingTree(std::function<void()> predicate)
{
std::set<QString> expanded_indexes;
std::set<QString> selected_indexes;
QString selected;
saveExpandedPathsAndSelection(expanded_indexes, selected_indexes);
saveExpandedPathsAndSelection(expanded_indexes, selected);
#ifdef DEBUG_NEW_FRIEND_LIST
std::cerr << "After collecting selection, selected paths is: \"" << selected.toStdString() << "\"" << std::endl;
#endif
whileBlocking(ui->peerTreeWidget)->clearSelection();
// This is a hack to avoid crashes on windows while calling endInsertRows(). I'm not sure wether these crashes are
// due to a Qt bug, or a misuse of the proxy model on my side. Anyway, this solves them for good.
@ -1124,8 +1151,9 @@ void NewFriendList::applyWhileKeepingTree(std::function<void()> predicate)
predicate();
QModelIndex selected_index;
mProxyModel->setSourceModel(mModel);
restoreExpandedPathsAndSelection(expanded_indexes, selected_indexes);
restoreExpandedPathsAndSelection(expanded_indexes,selected,selected_index);
// restore hidden columns
for(uint32_t i=0;i<RsFriendListModel::COLUMN_THREAD_NB_COLUMNS;++i)
@ -1135,9 +1163,36 @@ void NewFriendList::applyWhileKeepingTree(std::function<void()> predicate)
}
// restore sorting
sortColumn(mLastSortColumn,mLastSortOrder);
// sortColumn(mLastSortColumn,mLastSortOrder);
mProxyModel->sort(mLastSortColumn,mLastSortOrder);
if(selected_index.isValid())
ui->peerTreeWidget->scrollTo(selected_index);
}
void NewFriendList::sortColumn(int col,Qt::SortOrder so)
{
std::set<QString> expanded_indexes;
QString selected;
QModelIndex selected_index;
saveExpandedPathsAndSelection(expanded_indexes, selected);
whileBlocking(ui->peerTreeWidget)->clearSelection();
mProxyModel->setSortingEnabled(true);
mProxyModel->sort(col,so);
mProxyModel->setSortingEnabled(false);
restoreExpandedPathsAndSelection(expanded_indexes,selected,selected_index);
if(selected_index.isValid())
ui->peerTreeWidget->scrollTo(selected_index);
mLastSortColumn = col;
mLastSortOrder = so;
}
void NewFriendList::checkInternalData(bool force)
{
applyWhileKeepingTree([force,this]() { mModel->checkInternalData(force) ; });

8
retroshare-gui/src/gui/common/NewFriendList.h
View File

@ -106,10 +106,10 @@ private:
void applyWhileKeepingTree(std::function<void()> predicate);
void expandGroup(const RsNodeGroupId& gid);
void recursRestoreExpandedItems(const QModelIndex& index, const QString& parent_path, const std::set<QString>& exp, const std::set<QString> &sel);
void recursSaveExpandedItems(const QModelIndex& index,const QString& parent_path,std::set<QString>& exp, std::set<QString>& sel);
void saveExpandedPathsAndSelection(std::set<QString>& expanded_indexes, std::set<QString>& selected_indexes);
void restoreExpandedPathsAndSelection(const std::set<QString>& expanded_indexes, const std::set<QString>& selected_indexes);
void recursRestoreExpandedItems(const QModelIndex& index, const QString& parent_path, const std::set<QString>& exp, const QString &sel, QModelIndex &selected_index);
void recursSaveExpandedItems(const QModelIndex& index, const QModelIndex& current_index, const QString& parent_path, std::set<QString>& exp, QString &sel);
void saveExpandedPathsAndSelection(std::set<QString>& expanded_indexes, QString& sel);
void restoreExpandedPathsAndSelection(const std::set<QString>& expanded_indexes, const QString &index_to_select, QModelIndex &selected_index);
void checkInternalData(bool force);