Qt model 显示设置（居中靠右）、表头、自定义排序

设置：显示居中、靠左

QVariant SoloDccDataSegmentInfoTableModel::data(const QModelIndex &index, int role) const 
{
    if (role == Qt::TextAlignmentRole)  
    {  
        return int(Qt::AlignRight | Qt::AlignVCenter);  //按需调整
    }
}

表头设置：

QVariant SoloDccAdsrLogDataTableModelBattery::headerData(int section, Qt::Orientation orientation, int role) const
{
    if (section >= 0 && section < C_NUM)
    {
        if (orientation == Qt::Horizontal && role == Qt::DisplayRole)
        {
            const char* header_title[C_NUM] = { "IGU SN#","Duration Time" };
            return header_title[section];
        }
        
    }

    if (orientation == Qt::Vertical && role == Qt::DisplayRole)
        return section+1;

    if (role == Qt::TextAlignmentRole){
        return Qt::AlignCenter;
    }

    return QVariant();
}

排序：

void SoloDccTestResultsModel::sort(int column, Qt::SortOrder order)
{
    if (column > TEST_RESULTS_COLUME_INDEX)
		return;

	class ProjectInfoSort
	{
	public:
		ProjectInfoSort(int column, Qt::SortOrder order)
			: mColumn(column)
			, mSortOrder(order)
		{}

		bool operator()(const SoloAdsrLog::AdsrSummaryDataRecord& info1, const SoloAdsrLog::AdsrSummaryDataRecord& info2)
		{
			bool is_less = false;
			switch (mColumn)
			{
			case ADSR_SN_COLUME_INDEX:
				is_less = info1.adsrSN < info2.adsrSN;;
				break;
			case BEGIN_TIME_COLUME_INDEX:
				is_less = info1.startTime < info2.startTime;;
				break;
			case END_TIME_COLUME_INDEX:
				is_less = info1.endTime < info2.endTime;
				break;
			case DEVICE_TYPE_COLUME_INDEX:
				is_less = info1.deviceType < info2.deviceType;
				break;
            case TEST_RESULTS_COLUME_INDEX:
                is_less = info1.testResult < info2.testResult;
                break;
			}

			if (mSortOrder == Qt::DescendingOrder)
			{
				is_less = !is_less;
			}

			return is_less;
		}
	private:
		int                 mColumn;
		Qt::SortOrder       mSortOrder;
	};


	ProjectInfoSort sorter(column, order);
    qSort(m_testResult_List.begin(), m_testResult_List.end(), sorter);
    dataChanged(index(0, 0), index(m_testResult_List.size() - 1, TEST_RESULTS_COLUME_INDEX - 1));
}