80 lines
2.6 KiB
C++
80 lines
2.6 KiB
C++
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//
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// Created by grimmauld on 25.02.24.
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//
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#include "PsTreeModel.h"
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PsTreeModel::PsTreeModel(QObject *parent) : QAbstractItemModel(parent), rootItem(get_process_records()) {}
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QModelIndex PsTreeModel::index(int row, int column, const QModelIndex &parent) const {
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if (!hasIndex(row, column, parent))
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return {};
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const ProcessTreeNode *parentItem = parent.isValid()
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? static_cast<ProcessTreeNode *>(parent.internalPointer())
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: &rootItem;
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if (auto *childItem = parentItem->child(row))
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return createIndex(row, column, childItem);
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return {};
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}
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QModelIndex PsTreeModel::parent(const QModelIndex &index) const {
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if (!index.isValid())
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return {};
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auto *childItem = static_cast<ProcessTreeNode *>(index.internalPointer());
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ProcessTreeNode *parentItem = childItem->parentItem();
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return parentItem != &rootItem
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? createIndex(parentItem->row(), 0, parentItem) : QModelIndex{};
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}
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int PsTreeModel::rowCount(const QModelIndex &parent) const {
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if (parent.column() > 0)
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return 0;
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const ProcessTreeNode *parentItem = parent.isValid()
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? static_cast<const ProcessTreeNode *>(parent.internalPointer())
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: &rootItem;
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return parentItem->childCount();
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}
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int PsTreeModel::columnCount(const QModelIndex &parent) const {
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if (parent.isValid())
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return static_cast<ProcessTreeNode *>(parent.internalPointer())->columnCount();
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return ProcessTreeNode{}.columnCount();
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}
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QVariant PsTreeModel::data(const QModelIndex &index, int role) const {
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if (!index.isValid() || role != Qt::DisplayRole)
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return {};
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const auto *item = static_cast<const ProcessTreeNode *>(index.internalPointer());
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return item->data(index.column());
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}
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Qt::ItemFlags PsTreeModel::flags(const QModelIndex &index) const {
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return index.isValid()
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? QAbstractItemModel::flags(index) : Qt::ItemFlags(Qt::NoItemFlags);
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}
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QVariant PsTreeModel::headerData(int section, Qt::Orientation orientation,
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int role) const {
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if (orientation != Qt::Horizontal || role != Qt::DisplayRole)
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return QVariant{};
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return ProcessTreeNode{}.headerData(section);
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}
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void PsTreeModel::update() {
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auto changes = update_process_records(&rootItem);
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QList<QPersistentModelIndex> changedParents{};
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for(auto* node: changes) {
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changedParents.push_back(createIndex(node->row(), 0, node));
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}
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layoutAboutToBeChanged(changedParents);
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}
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