Added support for internationalization

Merged from the mainline client. Originally implemented by Guillaume
Melquiond, starting with commit 1828eee6a6d91fd385ad1e69d93044516493aa91.

22 files changed, 282 insertions, 246 deletions

diff --git a/src/gui/buy.cpp b/src/gui/buy.cpp
index 714f52db..c1e5a272 100644
--- a/src/gui/buy.cpp
+++ b/src/gui/buy.cpp
@@ -34,10 +34,11 @@
 #include "../net/messageout.h"
 #include "../net/protocol.h"
 
-#include "../utils/tostring.h"
+#include "../utils/gettext.h"
+#include "../utils/strprintf.h"
 
 BuyDialog::BuyDialog(Network *network):
-    Window("Buy"), mNetwork(network),
+    Window(_("Buy")), mNetwork(network),
     mMoney(0), mAmountItems(0), mMaxItems(0)
 {
     setWindowName("Buy");
@@ -52,13 +53,13 @@ BuyDialog::BuyDialog(Network *network):
     mScrollArea = new ScrollArea(mShopItemList);
     mSlider = new Slider(1.0);
     mQuantityLabel = new gcn::Label("0");
-    mMoneyLabel = new gcn::Label("Price : 0 GP / 0 GP");
+    mMoneyLabel = new gcn::Label(strprintf(_("Price: %d GP / Total: %d GP"), 0, 0));
     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:");
+    mBuyButton = new Button(_("Buy"), "buy", this);
+    mQuitButton = new Button(_("Quit"), "quit", this);
+    mItemDescLabel = new gcn::Label(strprintf(_("Description: %s"), ""));
+    mItemEffectLabel = new gcn::Label(strprintf(_("Effect: %s"), ""));
 
     mIncreaseButton->setSize(20, 20);
     mDecreaseButton->setSize(20, 20);
@@ -159,7 +160,7 @@ void BuyDialog::action(const gcn::ActionEvent &event)
     }
     // 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++?
+    // there a better way to ensure this fails in an _obvious_ way in C++?
     else if (event.getId() == "buy" && mAmountItems > 0 &&
                 mAmountItems <= mMaxItems)
     {
@@ -246,8 +247,10 @@ BuyDialog::updateButtonsAndLabels()
     {
         const ItemInfo &info = mShopItems->at(selectedItem)->getInfo();
 
-        mItemDescLabel->setCaption("Description: " + info.getDescription());
-        mItemEffectLabel->setCaption("Effect: " + info.getEffect());
+        mItemDescLabel->setCaption
+            (strprintf(_("Description: %s"), info.getDescription().c_str()));
+        mItemEffectLabel->setCaption
+            (strprintf(_("Effect: %s"), info.getEffect().c_str()));
 
         int itemPrice = mShopItems->at(selectedItem)->getPrice();
 
@@ -263,8 +266,8 @@ BuyDialog::updateButtonsAndLabels()
     }
     else
     {
-        mItemDescLabel->setCaption("Description:");
-        mItemEffectLabel->setCaption("Effect:");
+        mItemDescLabel->setCaption(strprintf(_("Description: %s"), ""));
+        mItemEffectLabel->setCaption(strprintf(_("Effect: %s"), ""));
         mMaxItems = 0;
         mAmountItems = 0;
     }
@@ -276,8 +279,7 @@ BuyDialog::updateButtonsAndLabels()
     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" );
+    mQuantityLabel->setCaption(strprintf("%d / %d", mAmountItems, mMaxItems));
+    mMoneyLabel->setCaption
+        (strprintf(_("Price: %d GP / Total: %d GP"), price, mMoney - price));
 }
diff --git a/src/gui/char_select.cpp b/src/gui/char_select.cpp
index 7c067eef..65dafeea 100644
--- a/src/gui/char_select.cpp
+++ b/src/gui/char_select.cpp
@@ -38,7 +38,8 @@
 #include "../net/charserverhandler.h"
 #include "../net/messageout.h"
 
-#include "../utils/tostring.h"
+#include "../utils/gettext.h"
+#include "../utils/strprintf.h"
 #include "../utils/trim.h"
 
 // Defined in main.cpp, used here for setting the char create dialog
@@ -57,8 +58,8 @@ class CharDeleteConfirm : public ConfirmDialog
 };
 
 CharDeleteConfirm::CharDeleteConfirm(CharSelectDialog *m):
-    ConfirmDialog("Confirm", "Are you sure you want to delete this character?",
-            m),
+    ConfirmDialog(_("Confirm Character Delete"),
+                  _("Are you sure you want to delete this character?"), m),
     master(m)
 {
 }
@@ -75,21 +76,23 @@ void CharDeleteConfirm::action(const gcn::ActionEvent &event)
 CharSelectDialog::CharSelectDialog(Network *network,
                                    LockedArray<LocalPlayer*> *charInfo,
                                    Gender gender):
-    Window("Select Character"), mNetwork(network),
+    Window(_("Select Character")), mNetwork(network),
     mCharInfo(charInfo), mGender(gender), mCharSelected(false)
 {
-    mSelectButton = new Button("Ok", "ok", this);
-    mCancelButton = new Button("Cancel", "cancel", this);
-    mNewCharButton = new Button("New", "new", this);
-    mDelCharButton = new Button("Delete", "delete", this);
-    mPreviousButton = new Button("Previous", "previous", this);
-    mNextButton = new Button("Next", "next", this);
-
-    mNameLabel = new gcn::Label("Name");
-    mLevelLabel = new gcn::Label("Level");
-    mJobLevelLabel = new gcn::Label("Job Level");
-    mMoneyLabel = new gcn::Label("Money");
-    mPlayerBox = new PlayerBox();
+    mSelectButton = new Button(_("Ok"), "ok", this);
+    mCancelButton = new Button(_("Cancel"), "cancel", this);
+    mNewCharButton = new Button(_("New"), "new", this);
+    mDelCharButton = new Button(_("Delete"), "delete", this);
+    mPreviousButton = new Button(_("Previous"), "previous", this);
+    mNextButton = new Button(_("Next"), "next", this);
+
+    mNameLabel = new gcn::Label(strprintf(_("Name: %s"), ""));
+    mLevelLabel = new gcn::Label(strprintf(_("Level: %d"), 0));
+    mJobLevelLabel = new gcn::Label(strprintf(_("Job Level: %d"), 0));
+    mMoneyLabel = new gcn::Label(strprintf(_("Money: %d"), 0));
+
+    // Control that shows the Player
+    mPlayerBox = new PlayerBox;
 
     int w = 195;
     int h = 220;
@@ -178,10 +181,10 @@ void CharSelectDialog::updatePlayerInfo()
 
     if (pi)
     {
-        mNameLabel->setCaption(pi->getName());
-        mLevelLabel->setCaption("Lvl: " + toString(pi->mLevel));
-        mJobLevelLabel->setCaption("Job Lvl: " + toString(pi->mJobLevel));
-        mMoneyLabel->setCaption("Gold: " + toString(pi->mGp));
+        mNameLabel->setCaption(strprintf(_("Name: %s"), pi->getName().c_str()));
+        mLevelLabel->setCaption(strprintf(_("Level: %d"), pi->mLevel));
+        mJobLevelLabel->setCaption(strprintf(_("Job Level: %d"), pi->mJobLevel));
+        mMoneyLabel->setCaption(strprintf(_("Gold: %d"), pi->mGp));
         if (!mCharSelected)
         {
             mNewCharButton->setEnabled(false);
@@ -190,10 +193,10 @@ void CharSelectDialog::updatePlayerInfo()
         }
     }
     else {
-        mNameLabel->setCaption("Name");
-        mLevelLabel->setCaption("Level");
-        mJobLevelLabel->setCaption("Job Level");
-        mMoneyLabel->setCaption("Money");
+        mNameLabel->setCaption(strprintf(_("Name: %s"), ""));
+        mLevelLabel->setCaption(strprintf(_("Level: %d"), 0));
+        mJobLevelLabel->setCaption(strprintf(_("Job Level: %d"), 0));
+        mMoneyLabel->setCaption(strprintf(_("Money: %d"), 0));
         mNewCharButton->setEnabled(true);
         mDelCharButton->setEnabled(false);
         mSelectButton->setEnabled(false);
@@ -250,22 +253,22 @@ bool CharSelectDialog::selectByName(const std::string &name)
 
 CharCreateDialog::CharCreateDialog(Window *parent, int slot, Network *network,
                                    Gender gender):
-    Window("Create Character", true, parent), mNetwork(network), mSlot(slot)
+    Window(_("Create Character"), true, parent), mNetwork(network), mSlot(slot)
 {
     mPlayer = new Player(0, 0, NULL);
     mPlayer->setGender(gender);
     mPlayer->setHairStyle(rand() % Being::getHairStylesNr(), rand() % Being::getHairColorsNr());
 
     mNameField = new TextField("");
-    mNameLabel = new gcn::Label("Name:");
+    mNameLabel = new gcn::Label(_("Name:"));
     mNextHairColorButton = new Button(">", "nextcolor", this);
     mPrevHairColorButton = new Button("<", "prevcolor", this);
-    mHairColorLabel = new gcn::Label("Hair Color:");
+    mHairColorLabel = new gcn::Label(_("Hair Color:"));
     mNextHairStyleButton = new Button(">", "nextstyle", this);
     mPrevHairStyleButton = new Button("<", "prevstyle", this);
-    mHairStyleLabel = new gcn::Label("Hair Style:");
-    mCreateButton = new Button("Create", "create", this);
-    mCancelButton = new Button("Cancel", "cancel", this);
+    mHairStyleLabel = new gcn::Label(_("Hair Style:"));
+    mCreateButton = new Button(_("Create"), "create", this);
+    mCancelButton = new Button(_("Cancel"), "cancel", this);
     mPlayerBox = new PlayerBox(mPlayer);
 
     mNameField->setActionEventId("create");
diff --git a/src/gui/char_server.cpp b/src/gui/char_server.cpp
index ce068ad1..3d3309fb 100644
--- a/src/gui/char_server.cpp
+++ b/src/gui/char_server.cpp
@@ -31,6 +31,8 @@
 
 #include "../net/network.h" // TODO this is just for iptostring, move that?
 
+#include "../utils/gettext.h"
+#include "../utils/strprintf.h"
 #include "../utils/tostring.h"
 
 extern SERVER_INFO **server_info;
@@ -47,15 +49,15 @@ class ServerListModel : public gcn::ListModel {
 };
 
 ServerSelectDialog::ServerSelectDialog(LoginData *loginData, int nextState):
-    Window("Select Server"),
+    Window(_("Select Server")),
     mLoginData(loginData),
     mNextState(nextState)
 {
     mServerListModel = new ServerListModel();
     mServerList = new ListBox(mServerListModel);
     ScrollArea *mScrollArea = new ScrollArea(mServerList);
-    mOkButton = new Button("OK", "ok", this);
-    Button *mCancelButton = new Button("Cancel", "cancel", this);
+    mOkButton = new Button(_("OK"), "ok", this);
+    Button *mCancelButton = new Button(_("Cancel"), "cancel", this);
 
     setContentSize(200, 100);
 
diff --git a/src/gui/confirm_dialog.cpp b/src/gui/confirm_dialog.cpp
index 9ef94f62..5f2b9cb2 100644
--- a/src/gui/confirm_dialog.cpp
+++ b/src/gui/confirm_dialog.cpp
@@ -25,14 +25,15 @@
 
 #include "button.h"
 
+#include "../utils/gettext.h"
 
 ConfirmDialog::ConfirmDialog(const std::string &title, const std::string &msg,
         Window *parent):
     Window(title, true, parent)
 {
     gcn::Label *textLabel = new gcn::Label(msg);
-    gcn::Button *yesButton = new Button("Yes", "yes", this);
-    gcn::Button *noButton = new Button("No", "no", this);
+    gcn::Button *yesButton = new Button(_("Yes"), "yes", this);
+    gcn::Button *noButton = new Button(_("No"), "no", this);
 
     int w = textLabel->getWidth() + 20;
     int inWidth = yesButton->getWidth() + noButton->getWidth() + 5;
diff --git a/src/gui/connection.cpp b/src/gui/connection.cpp
index 8ad3b436..0f43ff14 100644
--- a/src/gui/connection.cpp
+++ b/src/gui/connection.cpp
@@ -30,6 +30,8 @@
 
 #include "../main.h"
 
+#include "../utils/gettext.h"
+
 namespace {
     struct ConnectionActionListener : public gcn::ActionListener
     {
@@ -42,9 +44,9 @@ ConnectionDialog::ConnectionDialog():
 {
     setContentSize(200, 100);
 
-    Button *cancelButton = new Button("Cancel", "cancelButton", &listener);
+    Button *cancelButton = new Button(_("Cancel"), "cancelButton", &listener);
     mProgressBar = new ProgressBar(0.0, 200 - 10, 20, 128, 128, 128);
-    gcn::Label *label = new gcn::Label("Connecting...");
+    gcn::Label *label = new gcn::Label(_("Connecting..."));
 
     cancelButton->setPosition(5, 100 - 5 - cancelButton->getHeight());
     mProgressBar->setPosition(5, cancelButton->getY() - 25);
diff --git a/src/gui/equipmentwindow.cpp b/src/gui/equipmentwindow.cpp
index 762ca8e8..f3a143be 100644
--- a/src/gui/equipmentwindow.cpp
+++ b/src/gui/equipmentwindow.cpp
@@ -31,10 +31,12 @@
 #include "../resources/iteminfo.h"
 #include "../resources/resourcemanager.h"
 
+#include "../utils/gettext.h"
 #include "../utils/tostring.h"
 
 EquipmentWindow::EquipmentWindow(Equipment *equipment):
-    Window("Equipment"), mEquipment(equipment)
+    Window(_("Equipment")),
+    mEquipment(equipment)
 {
     setWindowName("Equipment");
     setCloseButton(true);
diff --git a/src/gui/inventorywindow.cpp b/src/gui/inventorywindow.cpp
index 0e1c5291..ac368aa7 100644
--- a/src/gui/inventorywindow.cpp
+++ b/src/gui/inventorywindow.cpp
@@ -39,10 +39,11 @@
 
 #include "../resources/iteminfo.h"
 
-#include "../utils/tostring.h"
+#include "../utils/gettext.h"
+#include "../utils/strprintf.h"
 
 InventoryWindow::InventoryWindow():
-    Window("Inventory")
+    Window(_("Inventory"))
 {
     setWindowName("Inventory");
     setResizable(true);
@@ -52,8 +53,8 @@ InventoryWindow::InventoryWindow():
     // If you adjust these defaults, don't forget to adjust the trade window's.
     setDefaultSize(115, 25, 322, 200);
 
-    mUseButton = new Button("Use", "use", this);
-    mDropButton = new Button("Drop", "drop", this);
+    mUseButton = new Button(_("Use"), "use", this);
+    mDropButton = new Button(_("Drop"), "drop", this);
 
     mItems = new ItemContainer(player_node->getInventory());
     mItems->addSelectionListener(this);
@@ -95,15 +96,14 @@ void InventoryWindow::logic()
     updateButtons();
 
     // Update weight information
-    mWeightLabel->setCaption(
-            "Weight: " + toString(player_node->mTotalWeight) +
-            "/" + toString(player_node->mMaxWeight));
+    mWeightLabel->setCaption(strprintf(_("Weight: %d / %d"),
+                                       player_node->mTotalWeight,
+                                       player_node->mMaxWeight));
 
     // Update number of items in inventory
-    mInvenSlotLabel->setCaption(
-            "Slots used: "
-            + toString(player_node->getInventory()->getNumberOfSlotsUsed())
-            + "/" + toString(player_node->getInventory()->getInventorySize()));
+    mInvenSlotLabel->setCaption(strprintf(_("Slots used: %d / %d"),
+            player_node->getInventory()->getNumberOfSlotsUsed(),
+            player_node->getInventory()->getInventorySize()));
 }
 
 void InventoryWindow::action(const gcn::ActionEvent &event)
@@ -145,20 +145,20 @@ void InventoryWindow::valueChanged(const gcn::SelectionEvent &event)
     // Update name, effect and description
     if (!item)
     {
-        mItemNameLabel->setCaption("Name:");
-        mItemEffectLabel->setCaption("Effect:");
-        mItemDescriptionLabel->setCaption("Description:");
+        mItemNameLabel->setCaption(strprintf(_("Name: %s"), ""));
+        mItemEffectLabel->setCaption(strprintf(_("Effect: %s"), ""));
+        mItemDescriptionLabel->setCaption(strprintf(_("Description: %s"), ""));
     }
     else
     {
         const ItemInfo& itemInfo = item->getInfo();
-        std::string SomeText;
-        SomeText = "Name: " + itemInfo.getName();
-        mItemNameLabel->setCaption(SomeText);
-        SomeText = "Effect: " + itemInfo.getEffect();
-        mItemEffectLabel->setCaption(SomeText);
-        SomeText = "Description: " + itemInfo.getDescription();
-        mItemDescriptionLabel->setCaption(SomeText);
+        mItemNameLabel->setCaption(
+                strprintf(_("Name: %s"), itemInfo.getName().c_str()));
+        mItemEffectLabel->setCaption(
+                strprintf(_("Effect: %s"), itemInfo.getEffect().c_str()));
+        mItemDescriptionLabel->setCaption(
+                strprintf(_("Description: %s"),
+                          itemInfo.getDescription().c_str()));
     }
 }
 
@@ -170,7 +170,8 @@ void InventoryWindow::mouseClicked(gcn::MouseEvent &event)
     {
         Item *item = mItems->getSelectedItem();
 
-        if (!item) return;
+        if (!item)
+            return;
 
         /* Convert relative to the window coordinates to absolute screen
          * coordinates.
@@ -221,14 +222,14 @@ void InventoryWindow::updateButtons()
     if (selectedItem && selectedItem->isEquipment())
     {
         if (selectedItem->isEquipped()) {
-            mUseButton->setCaption("Unequip");
+            mUseButton->setCaption(_("Unequip"));
         }
         else {
-            mUseButton->setCaption("Equip");
+            mUseButton->setCaption(_("Equip"));
         }
     }
     else {
-        mUseButton->setCaption("Use");
+        mUseButton->setCaption(_("Use"));
     }
 
     mUseButton->setEnabled(selectedItem != 0);
diff --git a/src/gui/item_amount.cpp b/src/gui/item_amount.cpp
index 2e8941e8..064c8f93 100644
--- a/src/gui/item_amount.cpp
+++ b/src/gui/item_amount.cpp
@@ -29,31 +29,33 @@
 #include "../item.h"
 #include "../localplayer.h"
 
+#include "../utils/gettext.h"
+
 ItemAmountWindow::ItemAmountWindow(int usage, Window *parent, Item *item):
-    Window("Select amount of items to drop.", true, parent),
+    Window("", true, parent),
     mItem(item)
 {
-    // New labels
+    // Integer field
     mItemAmountTextBox = new IntTextBox(1);
-
-    // New buttons
-    Button *minusButton = new Button("-", "Minus", this);
-    Button *plusButton = new Button("+", "Plus", this);
-    Button *okButton = new Button("Okay", "Drop", this);
-    Button *cancelButton = new Button("Cancel", "Cancel", this);
-    mItemAmountSlide = new Slider(1.0, mItem->getQuantity());
-
     mItemAmountTextBox->setRange(1, mItem->getQuantity());
-    mItemAmountSlide->setDimension(gcn::Rectangle(5, 120, 180, 10));
 
-    // Set button events Id
+    // Slider
+    mItemAmountSlide = new Slider(1.0, mItem->getQuantity());
     mItemAmountSlide->setActionEventId("Slide");
+    mItemAmountSlide->addActionListener(this);
+
+    // Buttons
+    Button *minusButton = new Button("-", "Minus", this);
+    Button *plusButton = new Button("+", "Plus", this);
+    Button *okButton = new Button(_("Ok"), "Drop", this);
+    Button *cancelButton = new Button(_("Cancel"), "Cancel", this);
 
-    // Set position
+    // Set positions
     mItemAmountTextBox->setPosition(35, 10);
     mItemAmountTextBox->setSize(24, 16);
     plusButton->setPosition(60, 5);
     minusButton->setPosition(10, 5);
+    mItemAmountSlide->setDimension(gcn::Rectangle(5, 120, 180, 10));
     mItemAmountSlide->setPosition(10, 35);
     okButton->setPosition(10, 50);
     cancelButton->setPosition(60, 50);
@@ -66,17 +68,15 @@ ItemAmountWindow::ItemAmountWindow(int usage, Window *parent, Item *item):
     add(okButton);
     add(cancelButton);
 
-    mItemAmountSlide->addActionListener(this);
-
     resetAmount();
 
     switch (usage) {
         case AMOUNT_TRADE_ADD:
-            setCaption("Select amount of items to trade.");
+            setCaption(_("Select amount of items to trade."));
             okButton->setActionEventId("AddTrade");
             break;
         case AMOUNT_ITEM_DROP:
-            setCaption("Select amount of items to drop.");
+            setCaption(_("Select amount of items to drop."));
             okButton->setActionEventId("Drop");
             break;
         default:
diff --git a/src/gui/login.cpp b/src/gui/login.cpp
index 06a5f9f0..5a748b52 100644
--- a/src/gui/login.cpp
+++ b/src/gui/login.cpp
@@ -34,21 +34,23 @@
 #include "passwordfield.h"
 #include "textfield.h"
 
+#include "../utils/gettext.h"
+
 LoginDialog::LoginDialog(LoginData *loginData):
-    Window("Login"), mLoginData(loginData)
+    Window(_("Login")), mLoginData(loginData)
 {
-    gcn::Label *userLabel = new gcn::Label("Name:");
-    gcn::Label *passLabel = new gcn::Label("Password:");
-    gcn::Label *serverLabel = new gcn::Label("Server:");
+    gcn::Label *userLabel = new gcn::Label(_("Name:"));
+    gcn::Label *passLabel = new gcn::Label(_("Password:"));
+    gcn::Label *serverLabel = new gcn::Label(_("Server:"));
     mUserField = new TextField(mLoginData->username);
     mPassField = new PasswordField(mLoginData->password);
     mServerField = new TextField(mLoginData->hostname);
-    mKeepCheck = new CheckBox("Keep", mLoginData->remember);
-    mOkButton = new Button("OK", "ok", this);
-    mCancelButton = new Button("Cancel", "cancel", this);
-    mRegisterButton = new Button("Register", "register", this);
+    mKeepCheck = new CheckBox(_("Remember Username"), mLoginData->remember);
+    mOkButton = new Button(_("Ok"), "ok", this);
+    mCancelButton = new Button(_("Cancel"), "cancel", this);
+    mRegisterButton = new Button(_("Register"), "register", this);
 
-    const int width = 220;
+    const int width = 250;
     const int height = 100;
 
     setContentSize(width, height);
diff --git a/src/gui/menuwindow.cpp b/src/gui/menuwindow.cpp
index 3c3e4ab8..0893cb1c 100644
--- a/src/gui/menuwindow.cpp
+++ b/src/gui/menuwindow.cpp
@@ -28,6 +28,8 @@
 #include "button.h"
 #include "windowcontainer.h"
 
+#include "../utils/gettext.h"
+
 extern Window *setupWindow;
 extern Window *inventoryWindow;
 extern Window *equipmentWindow;
@@ -54,21 +56,21 @@ MenuWindow::MenuWindow():
     setTitleBarHeight(0);
 
     // Buttons
-    const char *buttonNames[] =
+    static const char *buttonNames[] =
     {
-        "Status",
-        "Equipment",
-        "Inventory",
-        "Skills",
-        "Shortcut",
-        "Setup",
+        N_("Status"),
+        N_("Equipment"),
+        N_("Inventory"),
+        N_("Skills"),
+        N_("Shortcut"),
+        N_("Setup"),
         0
     };
     int x = 0, h = 0;
 
     for (const char **curBtn = buttonNames; *curBtn; curBtn++)
     {
-        gcn::Button *btn = new Button(*curBtn, *curBtn, &listener);
+        gcn::Button *btn = new Button(gettext(*curBtn), *curBtn, &listener);
         btn->setPosition(x, 0);
         add(btn);
         x += btn->getWidth() + 3;
diff --git a/src/gui/minimap.cpp b/src/gui/minimap.cpp
index 231c749f..55132d6d 100644
--- a/src/gui/minimap.cpp
+++ b/src/gui/minimap.cpp
@@ -28,8 +28,10 @@
 
 #include "../resources/image.h"
 
+#include "../utils/gettext.h"
+
 Minimap::Minimap():
-    Window("Map"),
+    Window(_("MiniMap")),
     mMapImage(NULL)
 {
     setWindowName("MiniMap");
diff --git a/src/gui/npc_text.cpp b/src/gui/npc_text.cpp
index 34c9cce1..c9ace303 100644
--- a/src/gui/npc_text.cpp
+++ b/src/gui/npc_text.cpp
@@ -29,8 +29,10 @@
 
 #include "../npc.h"
 
+#include "../utils/gettext.h"
+
 NpcTextDialog::NpcTextDialog():
-    Window("NPC")
+    Window(_("NPC"))
 {
     setResizable(true);
 
@@ -41,7 +43,7 @@ NpcTextDialog::NpcTextDialog():
     mTextBox->setEditable(false);
 
     scrollArea = new ScrollArea(mTextBox);
-    okButton = new Button("OK", "ok", this);
+    okButton = new Button(_("OK"), "ok", this);
 
     setContentSize(260, 175);
     scrollArea->setHorizontalScrollPolicy(gcn::ScrollArea::SHOW_NEVER);
diff --git a/src/gui/npclistdialog.cpp b/src/gui/npclistdialog.cpp
index cdd38312..bff6994d 100644
--- a/src/gui/npclistdialog.cpp
+++ b/src/gui/npclistdialog.cpp
@@ -29,8 +29,10 @@
 
 #include "../npc.h"
 
+#include "../utils/gettext.h"
+
 NpcListDialog::NpcListDialog():
-    Window("NPC")
+    Window(_("NPC"))
 {
     setResizable(true);
 
@@ -39,8 +41,8 @@ NpcListDialog::NpcListDialog():
 
     mItemList = new ListBox(this);
     scrollArea = new ScrollArea(mItemList);
-    okButton = new Button("OK", "ok", this);
-    cancelButton = new Button("Cancel", "cancel", this);
+    okButton = new Button(_("OK"), "ok", this);
+    cancelButton = new Button(_("Cancel"), "cancel", this);
 
     setContentSize(260, 175);
     scrollArea->setHorizontalScrollPolicy(gcn::ScrollArea::SHOW_NEVER);
diff --git a/src/gui/ok_dialog.cpp b/src/gui/ok_dialog.cpp
index d43c8e69..9db3cd7b 100644
--- a/src/gui/ok_dialog.cpp
+++ b/src/gui/ok_dialog.cpp
@@ -24,6 +24,8 @@
 #include "button.h"
 #include "scrollarea.h"
 
+#include "../utils/gettext.h"
+
 OkDialog::OkDialog(const std::string &title, const std::string &msg,
         Window *parent):
     Window(title, true, parent)
@@ -32,7 +34,7 @@ OkDialog::OkDialog(const std::string &title, const std::string &msg,
     textBox->setEditable(false);
 
     gcn::ScrollArea *scrollArea = new ScrollArea(textBox);
-    gcn::Button *okButton = new Button("Ok", "ok", this);
+    gcn::Button *okButton = new Button(_("Ok"), "ok", this);
 
     setContentSize(260, 175);
     scrollArea->setHorizontalScrollPolicy(gcn::ScrollArea::SHOW_NEVER);
diff --git a/src/gui/popupmenu.cpp b/src/gui/popupmenu.cpp
index 07719d2c..bfa75ef9 100644
--- a/src/gui/popupmenu.cpp
+++ b/src/gui/popupmenu.cpp
@@ -42,6 +42,9 @@
 #include "../resources/iteminfo.h"
 #include "../resources/itemdb.h"
 
+#include "../utils/gettext.h"
+#include "../utils/strprintf.h"
+
 extern std::string tradePartnerName;
 
 PopupMenu::PopupMenu():
@@ -74,8 +77,10 @@ void PopupMenu::showPopup(int x, int y, Being *being)
                 // Players can be traded with. Later also attack, follow and
                 // add as buddy will be options in this menu.
                 const std::string &name = being->getName();
-                mBrowserBox->addRow("@@trade|Trade With " + name + "@@");
-                mBrowserBox->addRow("@@attack|Attack " + name + "@@");
+                mBrowserBox->addRow(
+                    strprintf(_("@@trade|Trade With %s@@"), name.c_str()));
+                mBrowserBox->addRow(
+                    strprintf(_("@@attack|Attack %s@@"), name.c_str()));
 
                 mBrowserBox->addRow("##3---");
 
@@ -106,7 +111,7 @@ void PopupMenu::showPopup(int x, int y, Being *being)
         case Being::NPC:
             // NPCs can be talked to (single option, candidate for removal
             // unless more options would be added)
-            mBrowserBox->addRow("@@talk|Talk To NPC@@");
+            mBrowserBox->addRow(_("@@talk|Talk To NPC@@"));
             break;
 
         default:
@@ -116,7 +121,7 @@ void PopupMenu::showPopup(int x, int y, Being *being)
 
     //browserBox->addRow("@@look|Look To@@");
     mBrowserBox->addRow("##3---");
-    mBrowserBox->addRow("@@cancel|Cancel@@");
+    mBrowserBox->addRow(_("@@cancel|Cancel@@"));
 
     showPopup(x, y);
 }
@@ -128,11 +133,11 @@ void PopupMenu::showPopup(int x, int y, FloorItem *floorItem)
 
     // Floor item can be picked up (single option, candidate for removal)
     std::string name = ItemDB::get(mFloorItem->getItemId()).getName();
-    mBrowserBox->addRow("@@pickup|Pick Up " + name + "@@");
+    mBrowserBox->addRow(strprintf(_("@@pickup|Pick Up %s@@"), name.c_str()));
 
     //browserBox->addRow("@@look|Look To@@");
     mBrowserBox->addRow("##3---");
-    mBrowserBox->addRow("@@cancel|Cancel@@");
+    mBrowserBox->addRow(_("@@cancel|Cancel@@"));
 
     showPopup(x, y);
 }
@@ -275,17 +280,17 @@ void PopupMenu::showPopup(int x, int y, Item *item)
     if (item->isEquipment())
     {
         if (item->isEquipped())
-            mBrowserBox->addRow("@@use|Unequip@@");
+            mBrowserBox->addRow(_("@@use|Unequip@@"));
         else
-            mBrowserBox->addRow("@@use|Equip@@");
+            mBrowserBox->addRow(_("@@use|Equip@@"));
     }
     else
-        mBrowserBox->addRow("@@use|Use@@");
+        mBrowserBox->addRow(_("@@use|Use@@"));
 
-    mBrowserBox->addRow("@@drop|Drop@@");
-    mBrowserBox->addRow("@@description|Description@@");
+    mBrowserBox->addRow(_("@@drop|Drop@@"));
+    mBrowserBox->addRow(_("@@description|Description@@"));
     mBrowserBox->addRow("##3---");
-    mBrowserBox->addRow("@@cancel|Cancel@@");
+    mBrowserBox->addRow(_("@@cancel|Cancel@@"));
 
     showPopup(x, y);
 }
diff --git a/src/gui/register.cpp b/src/gui/register.cpp
index 2a97a3e5..ce36efa2 100644
--- a/src/gui/register.cpp
+++ b/src/gui/register.cpp
@@ -39,6 +39,9 @@
 #include "textfield.h"
 #include "ok_dialog.h"
 
+#include "../utils/gettext.h"
+#include "../utils/strprintf.h"
+
 void
 WrongDataNoticeListener::setTarget(gcn::TextField *textField)
 {
@@ -59,18 +62,18 @@ RegisterDialog::RegisterDialog(LoginData *loginData):
     mWrongDataNoticeListener(new WrongDataNoticeListener()),
     mLoginData(loginData)
 {
-    gcn::Label *userLabel = new gcn::Label("Name:");
-    gcn::Label *passwordLabel = new gcn::Label("Password:");
-    gcn::Label *confirmLabel = new gcn::Label("Confirm:");
-    gcn::Label *serverLabel = new gcn::Label("Server:");
+    gcn::Label *userLabel = new gcn::Label(_("Name:"));
+    gcn::Label *passwordLabel = new gcn::Label(_("Password:"));
+    gcn::Label *confirmLabel = new gcn::Label(_("Confirm:"));
+    gcn::Label *serverLabel = new gcn::Label(_("Server:"));
     mUserField = new TextField(loginData->username);
     mPasswordField = new PasswordField(loginData->password);
     mConfirmField = new PasswordField();
     mServerField = new TextField(loginData->hostname);
-    mMaleButton = new RadioButton("Male", "sex", true);
-    mFemaleButton = new RadioButton("Female", "sex", false);
-    mRegisterButton = new Button("Register", "register", this);
-    mCancelButton = new Button("Cancel", "cancel", this);
+    mMaleButton = new RadioButton(_("Male"), "sex", true);
+    mFemaleButton = new RadioButton(_("Female"), "sex", false);
+    mRegisterButton = new Button(_("Register"), "register", this);
+    mCancelButton = new Button(_("Cancel"), "cancel", this);
 
     const int width = 220;
     const int height = 150;
@@ -163,45 +166,45 @@ RegisterDialog::action(const gcn::ActionEvent &event)
         const std::string user = mUserField->getText();
         logger->log("RegisterDialog::register Username is %s", user.c_str());
 
-        std::stringstream errorMsg;
+        std::string errorMsg;
         int error = 0;
 
         if (user.length() < LEN_MIN_USERNAME)
         {
             // Name too short
-            errorMsg << "The username needs to be at least "
-                     << LEN_MIN_USERNAME
-                     << " characters long.";
+            errorMsg = strprintf
+                (_("The username needs to be at least %d characters long."),
+                 LEN_MIN_USERNAME);
             error = 1;
         }
         else if (user.length() > LEN_MAX_USERNAME - 1 )
         {
             // Name too long
-            errorMsg << "The username needs to be less than "
-                     << LEN_MAX_USERNAME
-                     << " characters long.";
+            errorMsg = strprintf
+                (_("The username needs to be less than %d characters long."),
+                 LEN_MAX_USERNAME);
             error = 1;
         }
         else if (mPasswordField->getText().length() < LEN_MIN_PASSWORD)
         {
             // Pass too short
-            errorMsg << "The password needs to be at least "
-                     << LEN_MIN_PASSWORD
-                     << " characters long.";
+            errorMsg = strprintf
+                (_("The password needs to be at least %d characters long."),
+                 LEN_MIN_PASSWORD);
             error = 2;
         }
         else if (mPasswordField->getText().length() > LEN_MAX_PASSWORD - 1 )
         {
             // Pass too long
-            errorMsg << "The password needs to be less than "
-                     << LEN_MAX_PASSWORD
-                     << " characters long.";
+            errorMsg = strprintf
+                (_("The password needs to be less than %d characters long."),
+                 LEN_MAX_PASSWORD);
             error = 2;
         }
         else if (mPasswordField->getText() != mConfirmField->getText())
         {
             // Password does not match with the confirmation one
-            errorMsg << "Passwords do not match.";
+            errorMsg = _("Passwords do not match.");
             error = 2;
         }
 
@@ -220,8 +223,8 @@ RegisterDialog::action(const gcn::ActionEvent &event)
                 mWrongDataNoticeListener->setTarget(this->mPasswordField);
             }
 
-            OkDialog *mWrongRegisterNotice = new OkDialog("Error",
-                                                          errorMsg.str());
+            OkDialog *mWrongRegisterNotice =
+                new OkDialog(_("Error"), errorMsg);
             mWrongRegisterNotice->addActionListener(mWrongDataNoticeListener);
         }
         else
diff --git a/src/gui/sell.cpp b/src/gui/sell.cpp
index 6df1cbf6..7a2e94c6 100644
--- a/src/gui/sell.cpp
+++ b/src/gui/sell.cpp
@@ -39,10 +39,11 @@
 #include "../net/messageout.h"
 #include "../net/protocol.h"
 
-#include "../utils/tostring.h"
+#include "../utils/gettext.h"
+#include "../utils/strprintf.h"
 
 SellDialog::SellDialog(Network *network):
-    Window("Sell"),
+    Window(_("Sell")),
     mNetwork(network),
     mMaxItems(0), mAmountItems(0)
 {
@@ -58,13 +59,14 @@ SellDialog::SellDialog(Network *network):
     mScrollArea = new ScrollArea(mShopItemList);
     mSlider = new Slider(1.0);
     mQuantityLabel = new gcn::Label("0");
-    mMoneyLabel = new gcn::Label("Money: 0 GP / Total: 0 GP");
+    mMoneyLabel = new gcn::Label(
+        strprintf(_("Price: %d GP / Total: %d GP"), 0, 0));
     mIncreaseButton = new Button("+", "+", this);
     mDecreaseButton = new Button("-", "-", this);
-    mSellButton = new Button("Sell", "sell", this);
-    mQuitButton = new Button("Quit", "quit", this);
-    mItemDescLabel = new gcn::Label("Description:");
-    mItemEffectLabel = new gcn::Label("Effect:");
+    mSellButton = new Button(_("Sell"), "sell", this);
+    mQuitButton = new Button(_("Quit"), "quit", this);
+    mItemDescLabel = new gcn::Label(strprintf(_("Description: %s"), ""));
+    mItemEffectLabel = new gcn::Label(strprintf(_("Effect: %s"), ""));
 
     mIncreaseButton->setSize(20, 20);
     mDecreaseButton->setSize(20, 20);
@@ -261,14 +263,19 @@ void SellDialog::setMoney(int amount)
     mShopItemList->setPlayersMoney(amount);
 }
 
-void
-SellDialog::updateButtonsAndLabels()
+void SellDialog::updateButtonsAndLabels()
 {
     int selectedItem = mShopItemList->getSelected();
     int income = 0;
 
     if (selectedItem > -1)
     {
+        const ItemInfo &info = mShopItems->at(selectedItem)->getInfo();
+        mItemDescLabel->setCaption
+            (strprintf(_("Description: %s"), info.getDescription().c_str()));
+        mItemEffectLabel->setCaption
+            (strprintf(_("Effect: %s"), info.getEffect().c_str()));
+
         mMaxItems = mShopItems->at(selectedItem)->getQuantity();
         if (mAmountItems > mMaxItems)
         {
@@ -276,17 +283,13 @@ SellDialog::updateButtonsAndLabels()
         }
 
         income = mAmountItems * mShopItems->at(selectedItem)->getPrice();
-
-        const ItemInfo &info = mShopItems->at(selectedItem)->getInfo();
-        mItemDescLabel->setCaption("Description: " + info.getDescription());
-        mItemEffectLabel->setCaption("Effect: " + info.getEffect());
     }
     else
     {
+        mItemDescLabel->setCaption(strprintf(_("Description: %s"), ""));
+        mItemEffectLabel->setCaption(strprintf(_("Effect: %s"), ""));
         mMaxItems = 0;
         mAmountItems = 0;
-        mItemDescLabel->setCaption("Description:");
-        mItemEffectLabel->setCaption("Effect:");
     }
 
     // Update Buttons and slider
@@ -296,8 +299,8 @@ SellDialog::updateButtonsAndLabels()
     mSlider->setEnabled(mMaxItems > 1);
 
     // Update the quantity and money labels
-    mQuantityLabel->setCaption(
-            toString(mAmountItems) + " / " + toString(mMaxItems));
-    mMoneyLabel->setCaption("Money: " + toString(income) + " GP / Total: "
-                            + toString(mPlayerMoney + income) + " GP");
+    mQuantityLabel->setCaption(strprintf("%d / %d", mAmountItems, mMaxItems));
+    mMoneyLabel->setCaption
+        (strprintf(_("Price: %d GP / Total: %d GP"),
+                   income, mPlayerMoney + income));
 }
diff --git a/src/gui/setup.cpp b/src/gui/setup.cpp
index 2da9d1b5..067d8d64 100644
--- a/src/gui/setup.cpp
+++ b/src/gui/setup.cpp
@@ -32,6 +32,8 @@
 #include "tabbedcontainer.h"
 
 #include "../utils/dtor.h"
+#include "../utils/gettext.h"
+
 #include <iostream>
 
 extern Window *statusWindow;
@@ -52,12 +54,12 @@ Setup::Setup():
     int height = 265;
     setContentSize(width, height);
 
-    const char *buttonNames[] = {
-        "Apply", "Cancel", "Reset Windows", 0
+    static const char *buttonNames[] = {
+        N_("Apply"), N_("Cancel"), N_("Reset Windows"), 0
     };
     int x = width;
     for (const char **curBtn = buttonNames; *curBtn; ++curBtn) {
-        Button *btn = new Button(*curBtn, *curBtn, this);
+        Button *btn = new Button(gettext(*curBtn), *curBtn, this);
         x -= btn->getWidth() + 5;
         btn->setPosition(x, height - btn->getHeight() - 5);
         add(btn);
@@ -74,23 +76,23 @@ Setup::Setup():
     SetupTab *tab;
 
     tab = new Setup_Video();
-    panel->addTab(tab, "Video");
+    panel->addTab(tab, _("Video"));
     mTabs.push_back(tab);
 
     tab = new Setup_Audio();
-    panel->addTab(tab, "Audio");
+    panel->addTab(tab, _("Audio"));
     mTabs.push_back(tab);
 
     tab = new Setup_Joystick();
-    panel->addTab(tab, "Joystick");
+    panel->addTab(tab, _("Joystick"));
     mTabs.push_back(tab);
 
     tab = new Setup_Keyboard();
-    panel->addTab(tab, "Keyboard");
+    panel->addTab(tab, _("Keyboard"));
     mTabs.push_back(tab);
 
     tab = new Setup_Players();
-    panel->addTab(tab, "Players");
+    panel->addTab(tab, _("Players"));
     mTabs.push_back(tab);
 
     add(panel);
diff --git a/src/gui/setup_audio.cpp b/src/gui/setup_audio.cpp
index a027e133..c595edc9 100644
--- a/src/gui/setup_audio.cpp
+++ b/src/gui/setup_audio.cpp
@@ -31,18 +31,20 @@
 #include "../log.h"
 #include "../sound.h"
 
+#include "../utils/gettext.h"
+
 Setup_Audio::Setup_Audio():
     mMusicVolume((int)config.getValue("musicVolume", 60)),
     mSfxVolume((int)config.getValue("sfxVolume", 100)),
     mSoundEnabled(config.getValue("sound", 0)),
-    mSoundCheckBox(new CheckBox("Sound", mSoundEnabled)),
+    mSoundCheckBox(new CheckBox(_("Sound"), mSoundEnabled)),
     mSfxSlider(new Slider(0, 128)),
     mMusicSlider(new Slider(0, 128))
 {
     setOpaque(false);
 
-    gcn::Label *sfxLabel = new gcn::Label("Sfx volume");
-    gcn::Label *musicLabel = new gcn::Label("Music volume");
+    gcn::Label *sfxLabel = new gcn::Label(_("Sfx volume"));
+    gcn::Label *musicLabel = new gcn::Label(_("Music volume"));
 
     mSfxSlider->setActionEventId("sfx");
     mMusicSlider->setActionEventId("music");
diff --git a/src/gui/setup_joystick.cpp b/src/gui/setup_joystick.cpp
index c59068f7..a718f87e 100644
--- a/src/gui/setup_joystick.cpp
+++ b/src/gui/setup_joystick.cpp
@@ -28,12 +28,14 @@
 #include "../configuration.h"
 #include "../joystick.h"
 
+#include "../utils/gettext.h"
+
 extern Joystick *joystick;
 
 Setup_Joystick::Setup_Joystick():
-    mCalibrateLabel(new gcn::Label("Press the button to start calibration")),
-    mCalibrateButton(new Button("Calibrate", "calibrate", this)),
-    mJoystickEnabled(new CheckBox("Enable joystick"))
+    mCalibrateLabel(new gcn::Label(_("Press the button to start calibration"))),
+    mCalibrateButton(new Button(_("Calibrate"), "calibrate", this)),
+    mJoystickEnabled(new CheckBox(_("Enable joystick")))
 {
     setOpaque(false);
     mJoystickEnabled->setPosition(10, 10);
@@ -63,13 +65,13 @@ void Setup_Joystick::action(const gcn::ActionEvent &event)
     else
     {
         if (joystick->isCalibrating()) {
-            mCalibrateButton->setCaption("Calibrate");
-            mCalibrateLabel->setCaption(
-                    "Press the button to start calibration");
+            mCalibrateButton->setCaption(_("Calibrate"));
+            mCalibrateLabel->setCaption
+                (_("Press the button to start calibration"));
             joystick->finishCalibration();
         } else {
-            mCalibrateButton->setCaption("Stop");
-            mCalibrateLabel->setCaption("Rotate the stick");
+            mCalibrateButton->setCaption(_("Stop"));
+            mCalibrateLabel->setCaption(_("Rotate the stick"));
             joystick->startCalibration();
         }
     }
diff --git a/src/gui/setup_video.cpp b/src/gui/setup_video.cpp
index 54169b63..0debe163 100644
--- a/src/gui/setup_video.cpp
+++ b/src/gui/setup_video.cpp
@@ -43,6 +43,7 @@
 #include "../main.h"
 #include "../particle.h"
 
+#include "../utils/gettext.h"
 #include "../utils/tostring.h"
 
 extern Graphics *graphics;
@@ -108,11 +109,11 @@ Setup_Video::Setup_Video():
     mFps((int) config.getValue("fpslimit", 0)),
     mModeListModel(new ModeListModel),
     mModeList(new ListBox(mModeListModel)),
-    mFsCheckBox(new CheckBox("Full screen", mFullScreenEnabled)),
-    mOpenGLCheckBox(new CheckBox("OpenGL", mOpenGLEnabled)),
-    mCustomCursorCheckBox(new CheckBox("Custom cursor", mCustomCursorEnabled)),
+    mFsCheckBox(new CheckBox(_("Full screen"), mFullScreenEnabled)),
+    mOpenGLCheckBox(new CheckBox(_("OpenGL"), mOpenGLEnabled)),
+    mCustomCursorCheckBox(new CheckBox(_("Custom cursor"), mCustomCursorEnabled)),
     mAlphaSlider(new Slider(0.2, 1.0)),
-    mFpsCheckBox(new CheckBox("FPS Limit: ")),
+    mFpsCheckBox(new CheckBox(_("FPS Limit:"))),
     mFpsSlider(new Slider(10, 200)),
     mFpsField(new TextField),
     mOriginalScrollLaziness((int) config.getValue("ScrollLaziness", 16)),
@@ -131,7 +132,7 @@ Setup_Video::Setup_Video():
     setOpaque(false);
 
     ScrollArea *scrollArea = new ScrollArea(mModeList);
-    gcn::Label *alphaLabel = new gcn::Label("Gui opacity");
+    gcn::Label *alphaLabel = new gcn::Label(_("Gui opacity"));
 
     mModeList->setEnabled(false);
 #ifndef USE_OPENGL
@@ -188,7 +189,7 @@ Setup_Video::Setup_Video():
     mParticleDetailField->addKeyListener(this);
 
     mScrollRadiusSlider->setDimension(gcn::Rectangle(10, 120, 75, 10));
-    gcn::Label *scrollRadiusLabel = new gcn::Label("Scroll radius");
+    gcn::Label *scrollRadiusLabel = new gcn::Label(_("Scroll radius"));
     scrollRadiusLabel->setPosition(90, 120);
     mScrollRadiusField->setPosition(mFpsField->getX(), 120);
     mScrollRadiusField->setWidth(30);
@@ -196,7 +197,7 @@ Setup_Video::Setup_Video():
     mScrollRadiusSlider->setValue(mOriginalScrollRadius);
 
     mScrollLazinessSlider->setDimension(gcn::Rectangle(10, 140, 75, 10));
-    gcn::Label *scrollLazinessLabel = new gcn::Label("Scroll laziness");
+    gcn::Label *scrollLazinessLabel = new gcn::Label(_("Scroll laziness"));
     scrollLazinessLabel->setPosition(90, 140);
     mScrollLazinessField->setPosition(mFpsField->getX(), 140);
     mScrollLazinessField->setWidth(30);
@@ -204,42 +205,42 @@ Setup_Video::Setup_Video():
     mScrollLazinessSlider->setValue(mOriginalScrollLaziness);
 
     mOverlayDetailSlider->setDimension(gcn::Rectangle(10, 160, 75, 10));
-    gcn::Label *overlayDetailLabel = new gcn::Label("Ambient FX");
+    gcn::Label *overlayDetailLabel = new gcn::Label(_("Ambient FX"));
     overlayDetailLabel->setPosition(90, 160);
     mOverlayDetailField->setPosition(180, 160);
     mOverlayDetailField->setWidth(30);
     switch (mOverlayDetail)
     {
         case 0:
-            mOverlayDetailField->setCaption("off");
+            mOverlayDetailField->setCaption(_("off"));
             break;
         case 1:
-            mOverlayDetailField->setCaption("low");
+            mOverlayDetailField->setCaption(_("low"));
             break;
         case 2:
-            mOverlayDetailField->setCaption("high");
+            mOverlayDetailField->setCaption(_("high"));
             break;
     }
     mOverlayDetailSlider->setValue(mOverlayDetail);
 
     mParticleDetailSlider->setDimension(gcn::Rectangle(10, 180, 75, 10));
-    gcn::Label *particleDetailLabel = new gcn::Label("Particle Detail");
+    gcn::Label *particleDetailLabel = new gcn::Label(_("Particle Detail"));
     particleDetailLabel->setPosition(90, 180);
     mParticleDetailField->setPosition(180, 180);
     mParticleDetailField->setWidth(60);
     switch (mParticleDetail)
     {
         case 0:
-            mParticleDetailField->setCaption("low");
+            mParticleDetailField->setCaption(_("low"));
             break;
         case 1:
-            mParticleDetailField->setCaption("medium");
+            mParticleDetailField->setCaption(_("medium"));
             break;
         case 2:
-            mParticleDetailField->setCaption("high");
+            mParticleDetailField->setCaption(_("high"));
             break;
         case 3:
-            mParticleDetailField->setCaption("max");
+            mParticleDetailField->setCaption(_("max"));
             break;
     }
     mParticleDetailSlider->setValue(mParticleDetail);
@@ -305,8 +306,8 @@ void Setup_Video::apply()
             }
 #ifdef WIN32
         } else {
-            new OkDialog("Switching to full screen",
-                    "Restart needed for changes to take effect.");
+            new OkDialog(_("Switching to full screen"),
+                    _("Restart needed for changes to take effect."));
         }
 #endif
         config.setValue("screen", fullscreen ? 1 : 0);
@@ -318,8 +319,8 @@ void Setup_Video::apply()
         config.setValue("opengl", mOpenGLCheckBox->isSelected() ? 1 : 0);
 
         // OpenGL can currently only be changed by restarting, notify user.
-        new OkDialog("Changing OpenGL",
-                "Applying change to OpenGL requires restart.");
+        new OkDialog(_("Changing OpenGL"),
+                _("Applying change to OpenGL requires restart."));
     }
 
     // FPS change
@@ -408,13 +409,13 @@ void Setup_Video::action(const gcn::ActionEvent &event)
         switch (val)
         {
             case 0:
-                mOverlayDetailField->setCaption("off");
+                mOverlayDetailField->setCaption(_("off"));
                 break;
             case 1:
-                mOverlayDetailField->setCaption("low");
+                mOverlayDetailField->setCaption(_("low"));
                 break;
             case 2:
-                mOverlayDetailField->setCaption("high");
+                mOverlayDetailField->setCaption(_("high"));
                 break;
         }
         config.setValue("OverlayDetail", val);
@@ -425,16 +426,16 @@ void Setup_Video::action(const gcn::ActionEvent &event)
         switch (val)
         {
             case 0:
-                mParticleDetailField->setCaption("low");
+                mParticleDetailField->setCaption(_("low"));
                 break;
             case 1:
-                mParticleDetailField->setCaption("medium");
+                mParticleDetailField->setCaption(_("medium"));
                 break;
             case 2:
-                mParticleDetailField->setCaption("high");
+                mParticleDetailField->setCaption(_("high"));
                 break;
             case 3:
-                mParticleDetailField->setCaption("max");
+                mParticleDetailField->setCaption(_("max"));
                 break;
         }
         config.setValue("particleEmitterSkip", 3 - val);
diff --git a/src/gui/trade.cpp b/src/gui/trade.cpp
index 9347cc02..9b88b6fb 100644
--- a/src/gui/trade.cpp
+++ b/src/gui/trade.cpp
@@ -41,6 +41,8 @@
 
 #include "../resources/iteminfo.h"
 
+#include "../utils/gettext.h"
+#include "../utils/strprintf.h"
 #include "../utils/tostring.h"
 
 TradeWindow::TradeWindow(Network *network):
@@ -56,10 +58,10 @@ TradeWindow::TradeWindow(Network *network):
     setMinWidth(342);
     setMinHeight(209);
 
-    mAddButton = new Button("Add", "add", this);
-    mOkButton = new Button("Ok", "ok", this);
-    mCancelButton = new Button("Cancel", "cancel", this);
-    mTradeButton = new Button("Trade", "trade", this);
+    mAddButton = new Button(_("Add"), "add", this);
+    mOkButton = new Button(_("Ok"), "ok", this);
+    mCancelButton = new Button(_("Cancel"), "cancel", this);
+    mTradeButton = new Button(_("Trade"), "trade", this);
 
     mMyItemContainer = new ItemContainer(mMyInventory.get());
     mMyItemContainer->addSelectionListener(this);
@@ -75,8 +77,8 @@ TradeWindow::TradeWindow(Network *network):
     mPartnerScroll = new ScrollArea(mPartnerItemContainer);
     mPartnerScroll->setPosition(8, 64);
 
-    mMoneyLabel = new gcn::Label("You get: 0 GP");
-    mMoneyLabel2 = new gcn::Label("You give:");
+    mMoneyLabel = new gcn::Label(strprintf(_("You get %d GP."), 0));
+    mMoneyLabel2 = new gcn::Label(_("You give:"));
     mMoneyField = new TextField;
     mMoneyField->setWidth(50);
 
@@ -87,8 +89,9 @@ TradeWindow::TradeWindow(Network *network):
 
     mTradeButton->setEnabled(false);
 
-    mItemNameLabel = new gcn::Label("Name:");
-    mItemDescriptionLabel = new gcn::Label("Description:");
+    mItemNameLabel = new gcn::Label(strprintf(_("Name: %s"), ""));
+    mItemDescriptionLabel = new gcn::Label(
+        strprintf(_("Description: %s"), ""));
 
     add(mMyScroll);
     add(mPartnerScroll);
@@ -150,7 +153,7 @@ void TradeWindow::widgetResized(const gcn::Event &event)
 
 void TradeWindow::addMoney(int amount)
 {
-    mMoneyLabel->setCaption("You get: " + toString(amount) + " GP");
+    mMoneyLabel->setCaption(strprintf(_("You get %d GP."), amount));
     mMoneyLabel->adjustSize();
 }
 
@@ -198,7 +201,7 @@ void TradeWindow::reset()
     mOkButton->setEnabled(true);
     mOkOther = false;
     mOkMe = false;
-    mMoneyLabel->setCaption("You get: 0 GP");
+    mMoneyLabel->setCaption(strprintf(_("You get %d GP."), 0));
     mMoneyField->setEnabled(true);
     mMoneyField->setText("");
 }
@@ -257,21 +260,11 @@ void TradeWindow::valueChanged(const gcn::SelectionEvent &event)
     }
 
     // Update name and description
-    if (!item)
-    {
-        mItemNameLabel->setCaption("Name:");
-        mItemDescriptionLabel->setCaption("Description:");
-    }
-    else
-    {
-        std::string SomeText;
-        SomeText = "Name: " + item->getInfo().getName();
-        mItemNameLabel->setCaption(SomeText);
-        mItemNameLabel->adjustSize();
-        SomeText = "Description: " + item->getInfo().getDescription();
-        mItemDescriptionLabel->setCaption(SomeText);
-        mItemDescriptionLabel->adjustSize();
-    }
+    ItemInfo const *info = item ? &item->getInfo() : NULL;
+    mItemNameLabel->setCaption(strprintf(_("Name: %s"),
+        info ? info->getName().c_str() : ""));
+    mItemDescriptionLabel->setCaption(strprintf(_("Description: %s"),
+        info ? info->getDescription().c_str() : ""));
 }
 
 void TradeWindow::action(const gcn::ActionEvent &event)