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Ref T529, deterministic sort order when column values are equal

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* the Qt model sorts by column
* when multiple values have the same column value the order among those is more or less random
* added additional property indexes to determine the order among the equal values
This commit is contained in:
Klaus Basan
2019-01-30 16:37:32 +01:00
committed by Mat Sutcliffe
parent 17f67d6106
commit 8c15f45007
8 changed files with 50 additions and 15 deletions
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20
src/blackgui/models/listmodelbase.cpp
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@@ -127,8 +127,8 @@ namespace BlackGui
if (!formatter) { return false; }
ObjectType obj = m_container[index.row()];
ObjectType currentObject(obj);
CPropertyIndex propertyIndex = this->columnToPropertyIndex(index.column());
const ObjectType currentObject(obj);
const CPropertyIndex propertyIndex = this->columnToPropertyIndex(index.column());
obj.setPropertyByIndex(propertyIndex, value);
if (obj != currentObject)
@@ -149,7 +149,7 @@ namespace BlackGui
bool CListModelBase<T, UseCompare>::setInContainer(const QModelIndex &index, const ObjectType &obj)
{
if (!index.isValid()) { return false; }
int row = index.row();
const int row = index.row();
if (row < 0 || row >= this->container().size()) { return false; }
m_container[row] = obj;
return true;
@@ -215,8 +215,8 @@ namespace BlackGui
{
Q_UNUSED(sort);
if (m_modelDestroyed) { return nullptr; }
auto sortColumn = this->getSortColumn();
auto sortOrder = this->getSortOrder();
const auto sortColumn = this->getSortColumn();
const auto sortOrder = this->getSortOrder();
CWorker *worker = CWorker::fromTask(this, "ModelSort", [this, container, sortColumn, sortOrder]()
{
return this->sortContainerByColumn(container, sortColumn, sortOrder);
@@ -399,11 +399,11 @@ namespace BlackGui
template <typename T, bool UseCompare>
void CListModelBase<T, UseCompare>::remove(const ObjectType &object)
{
int oldSize = m_container.size();
const int oldSize = m_container.size();
beginRemoveRows(QModelIndex(), 0, 0);
m_container.remove(object);
endRemoveRows();
int newSize = m_container.size();
const int newSize = m_container.size();
if (oldSize != newSize)
{
this->emitModelDataChanged();
@@ -533,10 +533,10 @@ namespace BlackGui
}
// sort the values
std::integral_constant<bool, UseCompare> marker {};
const std::integral_constant<bool, UseCompare> marker {};
const auto p = [ = ](const ObjectType & a, const ObjectType & b) -> bool
{
return Private::compareForModelSort<ObjectType>(a, b, order, propertyIndex, marker);
return Private::compareForModelSort<ObjectType>(a, b, order, propertyIndex, m_sortTieBreakers, marker);
};
return container.sorted(p);
@@ -555,7 +555,7 @@ namespace BlackGui
for (const QModelIndex &index : indexes)
{
if (!index.isValid()) { continue; }
int r = index.row();
const int r = index.row();
if (rows.contains(r)) { continue; }
container.push_back(this->at(index));
rows.append(r);