The Mana World Forums

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void ItemContainer::draw(gcn::Graphics* graphics)
{
    int gridWidth = itemset->spriteset[0]->getWidth() + 4;
    int gridHeight = itemset->spriteset[0]->getHeight() + 10;
    int w = getWidth();
    int columns = w / gridWidth;
    int itemX, itemY;
    int itemEquipped = 0;

    // Have at least 1 column
    if (columns < 1)
    {
        columns = 1;
    }

    // Reset selected item when quantity not above 0 (should probably be made
    // sure somewhere else)
    if (selectedItem && selectedItem->getQuantity() <= 0)
    {
        selectedItem = 0;
    }

    /*
     * eAthena seems to start inventory from the 3rd slot. Still a mystery to
     * us why, make sure not to copy this oddity to our own server.
     */
    for (int i = 2; i < INVENTORY_SIZE; i++)
    {
        Item *item = mInventory->getItem(i);

        if (item->getQuantity() <= 0) {
            continue;
        }
        
        if (!item->isEquipped()) {
            itemX = ((i - itemEquipped - 2) % columns) * gridWidth;
            itemY = ((i - itemEquipped - 2) / columns) * gridHeight;
        } else {
            itemEquipped++;
        }
        
        // Draw selection image below selected item
        if (selectedItem == item)
        {
            dynamic_cast<Graphics*>(graphics)->drawImage(
                    selImg, itemX, itemY);
        }

        // Draw item icon
        int idx;
        if ((idx = item->getInfo()->getImage()) > 0 && !item->isEquipped())
        {
            dynamic_cast<Graphics*>(graphics)->drawImage(
                    itemset->spriteset[idx - 1], itemX, itemY);
        }

        // Draw item caption
        std::stringstream ss;

        if (!item->isEquipped()) {
            ss << item->getQuantity();
        }

        graphics->drawText(ss.str(),
                itemX + gridWidth / 2,
                itemY + gridHeight - 11,
                gcn::Graphics::CENTER);
    }
}