tree_model_helpers.h

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#ifndef TREE_MODEL_HELPERS_H
#define TREE_MODEL_HELPERS_H
 
#include <config.h>
#include <ui/qt/utils/variant_pointer.h>
 
#include <QAbstractItemModel>
 
template <typename Item>
class ModelHelperTreeItem
{
public:
    ModelHelperTreeItem(Item* parent)
        : parent_(parent)
    {
    }
 
    virtual ~ModelHelperTreeItem()
    {
        for (int row = 0; row < childItems_.count(); row++)
        {
            delete VariantPointer<Item>::asPtr(childItems_.value(row));
        }
 
        childItems_.clear();
    }
 
    void appendChild(Item* child)
    {
        childItems_.append(VariantPointer<Item>::asQVariant(child));
    }
 
    void prependChild(Item* child)
    {
        childItems_.prepend(VariantPointer<Item>::asQVariant(child));
    }
 
    void insertChild(int row, Item* child)
    {
        childItems_.insert(row, VariantPointer<Item>::asQVariant(child));
    }
 
    void removeChild(int row)
    {
        delete VariantPointer<Item>::asPtr(childItems_.value(row));
        childItems_.removeAt(row);
    }
 
    Item* child(int row)
    {
        return VariantPointer<Item>::asPtr(childItems_.value(row));
    }
 
    int childCount() const
    {
        return static_cast<int>(childItems_.count());
    }
 
    int row()
    {
        if (parent_)
        {
            return static_cast<int>(parent_->childItems_.indexOf(VariantPointer<Item>::asQVariant((Item *)this)));
        }
 
        return 0;
    }
 
    Item* parentItem() {return parent_; }
 
protected:
    Item* parent_;
 
    QList<QVariant> childItems_;
};
 
#endif // TREE_MODEL_HELPERS_H