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diff --git a/src/gui/buydialog.cpp b/src/gui/buydialog.cpp
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+/*
+ * The ManaPlus Client
+ * Copyright (C) 2004-2009 The Mana World Development Team
+ * Copyright (C) 2009-2010 The Mana Developers
+ * Copyright (C) 2011 The ManaPlus Developers
+ *
+ * This file is part of The ManaPlus Client.
+ *
+ * This program 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.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "gui/buydialog.h"
+
+#include "shopitem.h"
+#include "units.h"
+
+#include "gui/setup.h"
+#include "gui/trade.h"
+
+#include "gui/widgets/button.h"
+#include "gui/widgets/label.h"
+#include "gui/widgets/layout.h"
+#include "gui/widgets/scrollarea.h"
+#include "gui/widgets/shopitems.h"
+#include "gui/widgets/shoplistbox.h"
+#include "gui/widgets/slider.h"
+
+#include "shopitem.h"
+#include "units.h"
+
+#include "net/buysellhandler.h"
+#include "net/net.h"
+#include "net/npchandler.h"
+
+#include "resources/iteminfo.h"
+
+#include "utils/gettext.h"
+#include "utils/stringutils.h"
+
+BuyDialog::DialogList BuyDialog::instances;
+
+BuyDialog::BuyDialog(int npcId):
+ Window(_("Buy")),
+ mNpcId(npcId), mMoney(0), mAmountItems(0), mMaxItems(0), mNick("")
+{
+ init();
+}
+
+BuyDialog::BuyDialog(std::string nick):
+ Window(_("Buy")),
+ mNpcId(-1), mMoney(0), mAmountItems(0), mMaxItems(0), mNick(nick)
+{
+ init();
+ logger->log("BuyDialog::BuyDialog nick:" + mNick);
+}
+
+void BuyDialog::init()
+{
+ setWindowName("Buy");
+ setResizable(true);
+ setCloseButton(true);
+ setMinWidth(260);
+ setMinHeight(230);
+ setDefaultSize(260, 230, ImageRect::CENTER);
+
+ mShopItems = new ShopItems;
+
+ mShopItemList = new ShopListBox(mShopItems, mShopItems);
+ mScrollArea = new ScrollArea(mShopItemList);
+ mScrollArea->setHorizontalScrollPolicy(gcn::ScrollArea::SHOW_NEVER);
+
+ mSlider = new Slider(1.0);
+ mQuantityLabel = new Label(strprintf("%d / %d", mAmountItems, mMaxItems));
+ mQuantityLabel->setAlignment(gcn::Graphics::CENTER);
+ mMoneyLabel = new Label(strprintf(_("Price: %s / Total: %s"),
+ "", ""));
+
+ // TRANSLATORS: This is a narrow symbol used to denote 'increasing'.
+ // You may change this symbol if your language uses another.
+ mIncreaseButton = new Button(_("+"), "inc", this);
+ // TRANSLATORS: This is a narrow symbol used to denote 'decreasing'.
+ // You may change this symbol if your language uses another.
+ mDecreaseButton = new Button(_("-"), "dec", this);
+ mBuyButton = new Button(_("Buy"), "buy", this);
+ mQuitButton = new Button(_("Quit"), "quit", this);
+ mAddMaxButton = new Button(_("Max"), "max", this);
+
+ mDecreaseButton->adjustSize();
+ mDecreaseButton->setWidth(mIncreaseButton->getWidth());
+
+ mIncreaseButton->setEnabled(false);
+ mDecreaseButton->setEnabled(false);
+ mBuyButton->setEnabled(false);
+ mSlider->setEnabled(false);
+
+ mSlider->setActionEventId("slider");
+ mSlider->addActionListener(this);
+ mShopItemList->addSelectionListener(this);
+
+ ContainerPlacer place;
+ place = getPlacer(0, 0);
+
+ place(0, 0, mScrollArea, 8, 5).setPadding(3);
+ place(0, 5, mDecreaseButton);
+ place(1, 5, mSlider, 3);
+ place(4, 5, mIncreaseButton);
+ place(5, 5, mQuantityLabel, 2);
+ place(7, 5, mAddMaxButton);
+ place(0, 6, mMoneyLabel, 8);
+ place(6, 7, mBuyButton);
+ place(7, 7, mQuitButton);
+
+ Layout &layout = getLayout();
+ layout.setRowHeight(0, Layout::AUTO_SET);
+
+ center();
+ loadWindowState();
+
+ instances.push_back(this);
+ setVisible(true);
+}
+
+BuyDialog::~BuyDialog()
+{
+ delete mShopItems;
+ mShopItems = 0;
+
+ instances.remove(this);
+}
+
+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(int id, unsigned char color, int amount, int price)
+{
+ mShopItems->addItem(id, color, amount, price);
+ mShopItemList->adjustSize();
+}
+
+void BuyDialog::action(const gcn::ActionEvent &event)
+{
+ if (event.getId() == "quit")
+ {
+ close();
+ return;
+ }
+
+ int selectedItem = mShopItemList->getSelected();
+
+ // The following actions require a valid selection
+ if (selectedItem < 0 ||
+ selectedItem >= static_cast<int>(mShopItems->getNumberOfElements()))
+ {
+ return;
+ }
+
+ if (event.getId() == "slider")
+ {
+ mAmountItems = static_cast<int>(mSlider->getValue());
+ updateButtonsAndLabels();
+ }
+ else if (event.getId() == "inc" && mAmountItems < mMaxItems)
+ {
+ mAmountItems++;
+ mSlider->setValue(mAmountItems);
+ updateButtonsAndLabels();
+ }
+ else if (event.getId() == "dec" && mAmountItems > 1)
+ {
+ mAmountItems--;
+ mSlider->setValue(mAmountItems);
+ updateButtonsAndLabels();
+ }
+ else if (event.getId() == "max")
+ {
+ mAmountItems = mMaxItems;
+ 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 _obvious_ way in C++?
+ else if (event.getId() == "buy" && mAmountItems > 0 &&
+ mAmountItems <= mMaxItems)
+ {
+ if (mNpcId != -1)
+ {
+ ShopItem *item = mShopItems->at(selectedItem);
+ Net::getNpcHandler()->buyItem(mNpcId, item->getId(),
+ item->getColor(), mAmountItems);
+
+ // Update money and adjust the max number of items that can be bought
+ mMaxItems -= mAmountItems;
+ setMoney(mMoney -
+ mAmountItems * mShopItems->at(selectedItem)->getPrice());
+
+ // Reset selection
+ mAmountItems = 1;
+ mSlider->setValue(1);
+ mSlider->gcn::Slider::setScale(1, mMaxItems);
+ }
+ else if (tradeWindow)
+ {
+ ShopItem *item = mShopItems->at(selectedItem);
+ if (item)
+ {
+ Net::getBuySellHandler()->sendBuyRequest(mNick,
+ item, mAmountItems);
+// logger->log("buy button mNick:" + mNick);
+ if (tradeWindow)
+ {
+ tradeWindow->addAutoMoney(mNick,
+ item->getPrice() * mAmountItems);
+ }
+ }
+ }
+ }
+}
+
+void BuyDialog::valueChanged(const gcn::SelectionEvent &event _UNUSED_)
+{
+ // Reset amount of items and update labels
+ mAmountItems = 1;
+ mSlider->setValue(1);
+
+ updateButtonsAndLabels();
+ mSlider->gcn::Slider::setScale(1, mMaxItems);
+}
+
+void BuyDialog::updateButtonsAndLabels()
+{
+ const int selectedItem = mShopItemList->getSelected();
+ int price = 0;
+
+ if (selectedItem > -1)
+ {
+ ShopItem * item = mShopItems->at(selectedItem);
+ if (item)
+ {
+ int itemPrice = item->getPrice();
+
+ // Calculate how many the player can afford
+ if (itemPrice)
+ mMaxItems = mMoney / itemPrice;
+ else
+ mMaxItems = 1;
+
+ if (item->getQuantity() > 0 && mMaxItems > item->getQuantity())
+ mMaxItems = item->getQuantity();
+
+ if (mAmountItems > mMaxItems)
+ mAmountItems = mMaxItems;
+
+ // Calculate price of pending purchase
+ price = mAmountItems * itemPrice;
+ }
+ }
+ else
+ {
+ 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(strprintf("%d / %d", mAmountItems, mMaxItems));
+ mMoneyLabel->setCaption(strprintf(_("Price: %s / Total: %s"),
+ Units::formatCurrency(price).c_str(),
+ Units::formatCurrency(mMoney - price).c_str()));
+}
+
+void BuyDialog::setVisible(bool visible)
+{
+ Window::setVisible(visible);
+
+ if (visible && mShopItemList)
+ mShopItemList->requestFocus();
+ else
+ scheduleDelete();
+}
+
+void BuyDialog::closeAll()
+{
+ DialogList::iterator it = instances.begin();
+ DialogList::iterator it_end = instances.end();
+
+ for (; it != it_end; ++it)
+ {
+ if (*it)
+ (*it)->close();
+ }
+}
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