nerix
63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
#include "widgets/listview/GenericListModel.hpp"
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namespace chatterino {
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GenericListModel::GenericListModel(QObject *parent)
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: QAbstractListModel(parent)
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{
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}
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int GenericListModel::rowCount(const QModelIndex & /*parent*/) const
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{
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return this->items_.size();
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}
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QVariant GenericListModel::data(const QModelIndex &index, int /* role */) const
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{
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if (!index.isValid())
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{
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return {};
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}
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if (index.row() >= static_cast<int>(this->items_.size()))
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{
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return {};
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}
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auto *item = this->items_[index.row()].get();
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// See https://stackoverflow.com/a/44503822 .
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return QVariant::fromValue(static_cast<void *>(item));
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}
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void GenericListModel::addItem(std::unique_ptr<GenericListItem> item)
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{
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// {begin,end}InsertRows needs to be called to notify attached views
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this->beginInsertRows(QModelIndex(), this->items_.size(),
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this->items_.size());
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this->items_.push_back(std::move(item));
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this->endInsertRows();
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}
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void GenericListModel::clear()
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{
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if (this->items_.empty())
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{
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return;
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}
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// {begin,end}RemoveRows needs to be called to notify attached views
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this->beginRemoveRows(QModelIndex(), 0, this->items_.size() - 1);
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// clear
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this->items_.clear();
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this->endRemoveRows();
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}
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void GenericListModel::reserve(size_t capacity)
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{
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this->items_.reserve(capacity);
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}
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} // namespace chatterino
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