/*
* 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 <guichan/widgets/label.hpp>
#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" );
}