Bitcoin-Qt: use statustips in addition to tooltips

- add setStatusTip() in addition to setTooltip() where it makes sense
- add only setStatusTip() if GUI element is only used in main- or tray menu

- add an event filter on our BitcoinGUI object to prevent garbelled text
  on the status bar, which happens when we use it for e.g. displaying
  block-sync state and then a QEvent::StatusTip wants to write own text to it

- remove a double translation of "Bitcoin client"

src/qt/bitcoingui.cpp

@@ -176,6 +176,9 @@ BitcoinGUI::BitcoinGUI(QWidget *parent):
     // Clicking on "Sign Message" in the receive coins page sends you to the sign message tab
     connect(receiveCoinsPage, SIGNAL(signMessage(QString)), this, SLOT(gotoSignMessageTab(QString)));
 
+    // Install event filter to be able to catch status tip events (QEvent::StatusTip)
+    this->installEventFilter(this);
+
     gotoOverviewPage();
 }
 
@@ -193,31 +196,36 @@ void BitcoinGUI::createActions()
     QActionGroup *tabGroup = new QActionGroup(this);
 
     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
-    overviewAction->setToolTip(tr("Show general overview of wallet"));
+    overviewAction->setStatusTip(tr("Show general overview of wallet"));
+    overviewAction->setToolTip(overviewAction->statusTip());
     overviewAction->setCheckable(true);
     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
     tabGroup->addAction(overviewAction);
 
     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
-    sendCoinsAction->setToolTip(tr("Send coins to a Bitcoin address"));
+    sendCoinsAction->setStatusTip(tr("Send coins to a Bitcoin address"));
+    sendCoinsAction->setToolTip(sendCoinsAction->statusTip());
     sendCoinsAction->setCheckable(true);
     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
     tabGroup->addAction(sendCoinsAction);
 
     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
-    receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
+    receiveCoinsAction->setStatusTip(tr("Show the list of addresses for receiving payments"));
+    receiveCoinsAction->setToolTip(receiveCoinsAction->statusTip());
     receiveCoinsAction->setCheckable(true);
     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
     tabGroup->addAction(receiveCoinsAction);
 
     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
-    historyAction->setToolTip(tr("Browse transaction history"));
+    historyAction->setStatusTip(tr("Browse transaction history"));
+    historyAction->setToolTip(historyAction->statusTip());
     historyAction->setCheckable(true);
     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
     tabGroup->addAction(historyAction);
 
     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
-    addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
+    addressBookAction->setStatusTip(tr("Edit the list of stored addresses and labels"));
+    addressBookAction->setToolTip(addressBookAction->statusTip());
     addressBookAction->setCheckable(true);
     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
     tabGroup->addAction(addressBookAction);
@@ -234,33 +242,37 @@ void BitcoinGUI::createActions()
     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 
     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
-    quitAction->setToolTip(tr("Quit application"));
+    quitAction->setStatusTip(tr("Quit application"));
     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
     quitAction->setMenuRole(QAction::QuitRole);
     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About Bitcoin"), this);
-    aboutAction->setToolTip(tr("Show information about Bitcoin"));
+    aboutAction->setStatusTip(tr("Show information about Bitcoin"));
     aboutAction->setMenuRole(QAction::AboutRole);
     aboutQtAction = new QAction(QIcon(":/trolltech/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
-    aboutQtAction->setToolTip(tr("Show information about Qt"));
+    aboutQtAction->setStatusTip(tr("Show information about Qt"));
     aboutQtAction->setMenuRole(QAction::AboutQtRole);
     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
-    optionsAction->setToolTip(tr("Modify configuration options for Bitcoin"));
+    optionsAction->setStatusTip(tr("Modify configuration options for Bitcoin"));
     optionsAction->setMenuRole(QAction::PreferencesRole);
     toggleHideAction = new QAction(QIcon(":/icons/bitcoin"), tr("&Show / Hide"), this);
+    toggleHideAction->setStatusTip(tr("Show or hide the main Window"));
     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet..."), this);
-    encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
+    encryptWalletAction->setStatusTip(tr("Encrypt the private keys that belong to your wallet"));
     encryptWalletAction->setCheckable(true);
     backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet..."), this);
-    backupWalletAction->setToolTip(tr("Backup wallet to another location"));
+    backupWalletAction->setStatusTip(tr("Backup wallet to another location"));
     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase..."), this);
-    changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
+    changePassphraseAction->setStatusTip(tr("Change the passphrase used for wallet encryption"));
     signMessageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message..."), this);
+    signMessageAction->setStatusTip(tr("Sign messages with your Bitcoin addresses to prove you own them"));
     verifyMessageAction = new QAction(QIcon(":/icons/transaction_0"), tr("&Verify message..."), this);
+    verifyMessageAction->setStatusTip(tr("Verify messages to ensure they were signed with specified Bitcoin addresses"));
 
     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
-    exportAction->setToolTip(tr("Export the data in the current tab to a file"));
+    exportAction->setStatusTip(tr("Export the data in the current tab to a file"));
+    exportAction->setToolTip(exportAction->statusTip());
     openRPCConsoleAction = new QAction(QIcon(":/icons/debugwindow"), tr("&Debug window"), this);
-    openRPCConsoleAction->setToolTip(tr("Open debugging and diagnostic console"));
+    openRPCConsoleAction->setStatusTip(tr("Open debugging and diagnostic console"));
 
     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
@@ -338,7 +350,8 @@ void BitcoinGUI::setClientModel(ClientModel *clientModel)
 #endif
             if(trayIcon)
             {
-                trayIcon->setToolTip(tr("Bitcoin client") + QString(" ") + tr("[testnet]"));
+                // Just attach " [testnet]" to the existing tooltip
+                trayIcon->setToolTip(trayIcon->toolTip() + QString(" ") + tr("[testnet]"));
                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
                 toggleHideAction->setIcon(QIcon(":/icons/toolbar_testnet"));
             }
@@ -472,6 +485,9 @@ void BitcoinGUI::setNumConnections(int count)
 
 void BitcoinGUI::setNumBlocks(int count, int nTotalBlocks)
 {
+    // Prevent orphan statusbar messages (e.g. hover Quit in main menu, wait until chain-sync starts -> garbelled text)
+    statusBar()->clearMessage();
+
     // don't show / hide progress bar and its label if we have no connection to the network
     if (!clientModel || (clientModel->getNumConnections() == 0 && !clientModel->isImporting()))
     {
@@ -750,6 +766,18 @@ void BitcoinGUI::dropEvent(QDropEvent *event)
     event->acceptProposedAction();
 }
 
+bool BitcoinGUI::eventFilter(QObject *object, QEvent *event)
+{
+    // Catch status tip events
+    if (event->type() == QEvent::StatusTip)
+    {
+        // Prevent adding text from setStatusTip(), if we currently use the status bar for displaying other stuff
+        if (progressBarLabel->isVisible() && progressBar->isVisible())
+            return true;
+    }
+    return QMainWindow::eventFilter(object, event);
+}
+
 void BitcoinGUI::handleURI(QString strURI)
 {
     // URI has to be valid

src/qt/bitcoingui.h

@@ -52,6 +52,7 @@ protected:
     void closeEvent(QCloseEvent *event);
     void dragEnterEvent(QDragEnterEvent *event);
     void dropEvent(QDropEvent *event);
+    bool eventFilter(QObject *object, QEvent *event);
 
 private:
     ClientModel *clientModel;
@@ -172,7 +173,7 @@ private slots:
 
     /** Show window if hidden, unminimize when minimized, rise when obscured or show if hidden and fToggleHidden is true */
     void showNormalIfMinimized(bool fToggleHidden = false);
-    /** simply calls showNormalIfMinimized(true) for use in SLOT() macro */
+    /** Simply calls showNormalIfMinimized(true) for use in SLOT() macro */
     void toggleHidden();
 };