/* * The Mana World * Copyright 2004 The Mana World Development Team * * This file is part of The Mana World. * * The Mana World is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * any later version. * * The Mana World is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with The Mana World; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * $Id$ */ #include "buy.h" #include #include "button.h" #include "scrollarea.h" #include "shop.h" #include "shoplistbox.h" #include "slider.h" #include "../npc.h" #include "../net/messageout.h" #include "../net/protocol.h" #include "../utils/tostring.h" BuyDialog::BuyDialog(Network *network): Window("Buy"), mNetwork(network), mMoney(0), mAmountItems(0), mMaxItems(0) { setWindowName("Buy"); setResizable(true); setMinWidth(260); setMinHeight(230); setDefaultSize(0, 0, 260, 230); mShopItems = new ShopItems; mShopItemList = new ShopListBox(mShopItems, mShopItems); mScrollArea = new ScrollArea(mShopItemList); mSlider = new Slider(1.0); mQuantityLabel = new gcn::Label("0"); mMoneyLabel = new gcn::Label("Price : 0 GP / 0 GP"); mIncreaseButton = new Button("+", "+", this); mDecreaseButton = new Button("-", "-", this); mBuyButton = new Button("Buy", "buy", this); mQuitButton = new Button("Quit", "quit", this); mItemDescLabel = new gcn::Label("Description:"); mItemEffectLabel = new gcn::Label("Effect:"); mIncreaseButton->setSize(20, 20); mDecreaseButton->setSize(20, 20); mQuantityLabel->setWidth(60); mScrollArea->setHorizontalScrollPolicy(gcn::ScrollArea::SHOW_NEVER); mIncreaseButton->setEnabled(false); mDecreaseButton->setEnabled(false); mBuyButton->setEnabled(false); mSlider->setEnabled(false); mShopItemList->setActionEventId("item"); mSlider->setActionEventId("slider"); mShopItemList->addSelectionListener(this); mSlider->addActionListener(this); add(mScrollArea); add(mSlider); add(mQuantityLabel); add(mBuyButton); add(mQuitButton); add(mIncreaseButton); add(mDecreaseButton); add(mMoneyLabel); add(mItemDescLabel); add(mItemEffectLabel); loadWindowState(); setLocationRelativeTo(getParent()); } BuyDialog::~BuyDialog() { delete mShopItems; } void BuyDialog::setMoney(int amount) { mMoney = amount; mShopItemList->setPlayersMoney(amount); updateButtonsAndLabels(); } void BuyDialog::reset() { mShopItems->clear(); mShopItemList->adjustSize(); // Reset previous selected items to prevent failing asserts mShopItemList->setSelected(-1); mSlider->setValue(0); setMoney(0); } void BuyDialog::addItem(short id, int price) { mShopItems->addItem(id, price); mShopItemList->adjustSize(); } void BuyDialog::action(const gcn::ActionEvent &event) { int selectedItem = mShopItemList->getSelected(); if (event.getId() == "quit") { setVisible(false); current_npc = 0; return; } // The following actions require a valid selection if (selectedItem < 0 || selectedItem >= (int) mShopItems->getNumberOfElements()) { return; } if (event.getId() == "slider") { mAmountItems = (int) mSlider->getValue(); updateButtonsAndLabels(); } else if (event.getId() == "+" && mAmountItems < mMaxItems) { mAmountItems++; mSlider->setValue(mAmountItems); updateButtonsAndLabels(); } else if (event.getId() == "-" && mAmountItems > 1) { mAmountItems--; mSlider->setValue(mAmountItems); updateButtonsAndLabels(); } // TODO: Actually we'd have a bug elsewhere if this check for the number // of items to be bought ever fails, Bertram removed the assertions, is // there a better way to ensure this fails in an _obivous_ way in C++? else if (event.getId() == "buy" && mAmountItems > 0 && mAmountItems <= mMaxItems) { MessageOut outMsg(mNetwork); outMsg.writeInt16(CMSG_NPC_BUY_REQUEST); outMsg.writeInt16(8); outMsg.writeInt16(mAmountItems); outMsg.writeInt16(mShopItems->at(selectedItem)->getId()); // Reset selection mAmountItems = 1; mSlider->setValue(1); mSlider->gcn::Slider::setScale(1, mMaxItems); // Update money and adjust the max number of items that can be bought mMaxItems -= mAmountItems; setMoney(mMoney - mAmountItems * mShopItems->at(selectedItem)->getPrice()); } } void BuyDialog::valueChanged(const gcn::SelectionEvent &event) { // Reset amount of items and update labels mAmountItems = 1; mSlider->setValue(1); updateButtonsAndLabels(); mSlider->gcn::Slider::setScale(1, mMaxItems); } void BuyDialog::widgetResized(const gcn::Event &event) { Window::widgetResized(event); const gcn::Rectangle &area = getChildrenArea(); const int width = area.width; const int height = area.height; mDecreaseButton->setPosition(8, height - 8 - mDecreaseButton->getHeight()); mIncreaseButton->setPosition( mDecreaseButton->getX() + mDecreaseButton->getWidth() + 5, mDecreaseButton->getY()); mQuitButton->setPosition( width - 8 - mQuitButton->getWidth(), height - 8 - mQuitButton->getHeight()); mBuyButton->setPosition( mQuitButton->getX() - 5 - mBuyButton->getWidth(), mQuitButton->getY()); mItemDescLabel->setDimension(gcn::Rectangle(8, mBuyButton->getY() - 5 - mItemDescLabel->getHeight(), width - 16, mItemDescLabel->getHeight())); mItemEffectLabel->setDimension(gcn::Rectangle(8, mItemDescLabel->getY() - 5 - mItemEffectLabel->getHeight(), width - 16, mItemEffectLabel->getHeight())); mMoneyLabel->setDimension(gcn::Rectangle(8, mItemEffectLabel->getY() - 5 - mMoneyLabel->getHeight(), width - 16, mMoneyLabel->getHeight())); mQuantityLabel->setPosition( width - mQuantityLabel->getWidth() - 8, mMoneyLabel->getY() - 5 - mQuantityLabel->getHeight()); mSlider->setDimension(gcn::Rectangle(8, mQuantityLabel->getY(), mQuantityLabel->getX() - 8 - 8, 10)); mScrollArea->setDimension(gcn::Rectangle(8, 8, width - 16, mSlider->getY() - 5 - 8)); } void BuyDialog::updateButtonsAndLabels() { const int selectedItem = mShopItemList->getSelected(); int price = 0; if (selectedItem > -1) { const ItemInfo &info = mShopItems->at(selectedItem)->getInfo(); mItemDescLabel->setCaption("Description: " + info.getDescription()); mItemEffectLabel->setCaption("Effect: " + info.getEffect()); int itemPrice = mShopItems->at(selectedItem)->getPrice(); // Calculate how many the player can afford mMaxItems = mMoney / itemPrice; if (mAmountItems > mMaxItems) { mAmountItems = mMaxItems; } // Calculate price of pending purchase price = mAmountItems * itemPrice; } else { mItemDescLabel->setCaption("Description:"); mItemEffectLabel->setCaption("Effect:"); mMaxItems = 0; mAmountItems = 0; } // Enable or disable buttons and slider mIncreaseButton->setEnabled(mAmountItems < mMaxItems); mDecreaseButton->setEnabled(mAmountItems > 1); mBuyButton->setEnabled(mAmountItems > 0); mSlider->setEnabled(mMaxItems > 1); // Update quantity and money labels mQuantityLabel->setCaption( toString(mAmountItems) + " / " + toString(mMaxItems)); mMoneyLabel->setCaption("Price: " + toString(price) + " GP / " + toString(mMoney - price) + " GP" ); }