examples/GridExample/ExampleDataList.cpp - dev-ver1 - friendlyperch/QGrid

examples/GridExample/ExampleDataList.cpp
95 строк2 KB
okuntsev
cell render
15 янв 2026, 13:16
15 янв 2026, 13:166be0fbd
#include "ExampleDataList.h"

ExampleDataList::ExampleDataList(QObject *parent)
    : ActiveListBase(parent)
{
}

void ExampleDataList::clear()
{
    mItems.clear();
    emit cleared();
    emit countChanged();
}

size_t ExampleDataList::count() const
{
    return mItems.size();
}

QObject *ExampleDataList::qobjectValue(size_t index)
{
    if (index < 0 || index >= mItems.size())
        return nullptr;
    
    return mItems[index];
}

std::optional<size_t> ExampleDataList::qobjectIndexOf(QObject *value) const
{
    ExampleDataItem *item = qobject_cast<ExampleDataItem*>(value);
    if (!item)
        return std::nullopt;
    
    int index = mItems.indexOf(item);
    if (index < 0)
        return std::nullopt;
    
    return static_cast<size_t>(index);
}

void ExampleDataList::setItems(const QVector<ExampleDataItem*> &items)
{
    mItems = items;
    emit countChanged();
}

QVector<ExampleDataItem*> ExampleDataList::getItems() const
{
    return mItems;
}

ExampleDataItem *ExampleDataList::at(size_t index) const
{
    if (index >= static_cast<size_t>(mItems.size()))
        return nullptr;

    return mItems[index];
}

void ExampleDataList::appendItem(ExampleDataItem *item)
{
    mItems.append(item);
    emit inserted(mItems.size() - 1, 1);
    emit countChanged();
}

void ExampleDataList::removeRequest(size_t index)
{
    if (index >= static_cast<size_t>(mItems.size()))
        return;
    auto item = mItems.at(index);
    mItems.removeAt(static_cast<int>(index));
    emit removed(index, 1);
    emit countChanged();
    delete item;
}

void ExampleDataList::removeItem(size_t index)
{
    removeRequest(index);
}

void ExampleDataList::createRequest()
{
    auto *newItem = new ExampleDataItem();
    newItem->setName("New Item");
    newItem->setAge(25);
    newItem->setSalary(50000.0);
    newItem->setActive(true);
    newItem->setBirthDate(QDate::currentDate());
    newItem->setStatus("Pending");
    size_t index = count();
    appendItem(newItem);
    emit created(index);
}