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// Copyright (C) 2016 Denis Mingulov
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "classviewtreeitemmodel.h"
#include "classviewconstants.h"
#include "classviewmanager.h"
#include "classviewutils.h"
#include <cplusplus/Icons.h>
#include <utils/dropsupport.h>
namespace ClassView {
namespace Internal {
/*!
Moves \a item to \a target (sorted).
*/
static void moveItemToTarget(QStandardItem *item, const QStandardItem *target)
{
if (!item || !target)
return;
int itemIndex = 0;
int targetIndex = 0;
int itemRows = item->rowCount();
int targetRows = target->rowCount();
while (itemIndex < itemRows && targetIndex < targetRows) {
QStandardItem *itemChild = item->child(itemIndex);
const QStandardItem *targetChild = target->child(targetIndex);
const SymbolInformation &itemInf = Internal::symbolInformationFromItem(itemChild);
const SymbolInformation &targetInf = Internal::symbolInformationFromItem(targetChild);
if (itemInf < targetInf) {
item->removeRow(itemIndex);
--itemRows;
} else if (itemInf == targetInf) {
moveItemToTarget(itemChild, targetChild);
++itemIndex;
++targetIndex;
} else {
item->insertRow(itemIndex, targetChild->clone());
moveItemToTarget(item->child(itemIndex), targetChild);
++itemIndex;
++itemRows;
++targetIndex;
}
}
// append
while (targetIndex < targetRows) {
item->appendRow(target->child(targetIndex)->clone());
moveItemToTarget(item->child(itemIndex), target->child(targetIndex));
++itemIndex;
++itemRows;
++targetIndex;
}
// remove end of item
while (itemIndex < itemRows) {
item->removeRow(itemIndex);
--itemRows;
}
}
///////////////////////////////// TreeItemModel //////////////////////////////////
/*!
\class TreeItemModel
\brief The TreeItemModel class provides a model for the Class View tree.
*/
TreeItemModel::TreeItemModel(QObject *parent)
: QStandardItemModel(parent)
{
}
TreeItemModel::~TreeItemModel() = default;
QVariant TreeItemModel::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
return QStandardItemModel::data(index, role);
switch (role) {
case Qt::DecorationRole: {
QVariant iconType = data(index, Constants::IconTypeRole);
if (iconType.isValid()) {
bool ok = false;
int type = iconType.toInt(&ok);
if (ok && type >= 0)
return ::Utils::CodeModelIcon::iconForType(static_cast<::Utils::CodeModelIcon::Type>(type));
}
}
break;
case Qt::ToolTipRole:
case Qt::DisplayRole: {
const SymbolInformation &inf = Internal::symbolInformationFromItem(itemFromIndex(index));
if (inf.name() == inf.type() || inf.iconType() < 0)
return inf.name();
QString name(inf.name());
if (!inf.type().isEmpty())
name += QLatin1Char(' ') + inf.type();
return name;
}
break;
default:
break;
}
return QStandardItemModel::data(index, role);
}
bool TreeItemModel::canFetchMore(const QModelIndex &parent) const
{
if (!parent.isValid())
return false;
return Manager::instance()->canFetchMore(itemFromIndex(parent));
}
void TreeItemModel::fetchMore(const QModelIndex &parent)
{
if (!parent.isValid())
return;
return Manager::instance()->fetchMore(itemFromIndex(parent));
}
bool TreeItemModel::hasChildren(const QModelIndex &parent) const
{
if (!parent.isValid())
return true;
return Manager::instance()->hasChildren(itemFromIndex(parent));
}
Qt::DropActions TreeItemModel::supportedDragActions() const
{
return Qt::MoveAction | Qt::CopyAction;
}
QStringList TreeItemModel::mimeTypes() const
{
return ::Utils::DropSupport::mimeTypesForFilePaths();
}
QMimeData *TreeItemModel::mimeData(const QModelIndexList &indexes) const
{
auto mimeData = new ::Utils::DropMimeData;
mimeData->setOverrideFileDropAction(Qt::CopyAction);
for (const QModelIndex &index : indexes) {
const QSet<SymbolLocation> locations = Internal::roleToLocations(
data(index, Constants::SymbolLocationsRole).toList());
if (locations.isEmpty())
continue;
const SymbolLocation loc = *locations.constBegin();
mimeData->addFile(loc.filePath(), loc.line(), loc.column());
}
if (mimeData->files().isEmpty()) {
delete mimeData;
return nullptr;
}
return mimeData;
}
/*!
Moves the root item to the \a target item.
*/
void TreeItemModel::moveRootToTarget(const QStandardItem *target)
{
emit layoutAboutToBeChanged();
moveItemToTarget(invisibleRootItem(), target);
emit layoutChanged();
}
} // namespace Internal
} // namespace ClassView
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