diff --git a/bitcoin-qt.pro b/bitcoin-qt.pro index c36e384673..e2dab18abf 100644 --- a/bitcoin-qt.pro +++ b/bitcoin-qt.pro @@ -214,7 +214,8 @@ HEADERS += src/qt/bitcoingui.h \ src/leveldb.h \ src/threadsafety.h \ src/limitedmap.h \ - src/qt/splashscreen.h + src/qt/splashscreen.h \ + src/qt/intro.h SOURCES += src/qt/bitcoin.cpp \ src/qt/bitcoingui.cpp \ @@ -284,7 +285,8 @@ SOURCES += src/qt/bitcoin.cpp \ src/noui.cpp \ src/leveldb.cpp \ src/txdb.cpp \ - src/qt/splashscreen.cpp + src/qt/splashscreen.cpp \ + src/qt/intro.cpp RESOURCES += src/qt/bitcoin.qrc @@ -298,7 +300,8 @@ FORMS += src/qt/forms/sendcoinsdialog.ui \ src/qt/forms/sendcoinsentry.ui \ src/qt/forms/askpassphrasedialog.ui \ src/qt/forms/rpcconsole.ui \ - src/qt/forms/optionsdialog.ui + src/qt/forms/optionsdialog.ui \ + src/qt/forms/intro.ui contains(USE_QRCODE, 1) { HEADERS += src/qt/qrcodedialog.h diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp index 76e88b36a7..b0c45d6863 100644 --- a/src/qt/bitcoin.cpp +++ b/src/qt/bitcoin.cpp @@ -15,6 +15,7 @@ #include "ui_interface.h" #include "paymentserver.h" #include "splashscreen.h" +#include "intro.h" #include #if QT_VERSION < 0x050000 @@ -24,6 +25,7 @@ #include #include #include +#include #if defined(BITCOIN_NEED_QT_PLUGINS) && !defined(_BITCOIN_QT_PLUGINS_INCLUDED) #define _BITCOIN_QT_PLUGINS_INCLUDED @@ -110,6 +112,46 @@ static void handleRunawayException(std::exception *e) exit(1); } +/** Set up translations */ +static void initTranslations(QTranslator &qtTranslatorBase, QTranslator &qtTranslator, QTranslator &translatorBase, QTranslator &translator) +{ + QSettings settings; + + // Get desired locale (e.g. "de_DE") + // 1) System default language + QString lang_territory = QLocale::system().name(); + // 2) Language from QSettings + QString lang_territory_qsettings = settings.value("language", "").toString(); + if(!lang_territory_qsettings.isEmpty()) + lang_territory = lang_territory_qsettings; + // 3) -lang command line argument + lang_territory = QString::fromStdString(GetArg("-lang", lang_territory.toStdString())); + + // Convert to "de" only by truncating "_DE" + QString lang = lang_territory; + lang.truncate(lang_territory.lastIndexOf('_')); + + // Load language files for configured locale: + // - First load the translator for the base language, without territory + // - Then load the more specific locale translator + + // Load e.g. qt_de.qm + if (qtTranslatorBase.load("qt_" + lang, QLibraryInfo::location(QLibraryInfo::TranslationsPath))) + QApplication::installTranslator(&qtTranslatorBase); + + // Load e.g. qt_de_DE.qm + if (qtTranslator.load("qt_" + lang_territory, QLibraryInfo::location(QLibraryInfo::TranslationsPath))) + QApplication::installTranslator(&qtTranslator); + + // Load e.g. bitcoin_de.qm (shortcut "de" needs to be defined in bitcoin.qrc) + if (translatorBase.load(lang, ":/translations/")) + QApplication::installTranslator(&translatorBase); + + // Load e.g. bitcoin_de_DE.qm (shortcut "de_DE" needs to be defined in bitcoin.qrc) + if (translator.load(lang_territory, ":/translations/")) + QApplication::installTranslator(&translator); +} + #ifndef BITCOIN_QT_TEST int main(int argc, char *argv[]) { @@ -130,6 +172,22 @@ int main(int argc, char *argv[]) // Register meta types used for QMetaObject::invokeMethod qRegisterMetaType< bool* >(); + // Application identification (must be set before OptionsModel is initialized, + // as it is used to locate QSettings) + QApplication::setOrganizationName("Bitcoin"); + QApplication::setOrganizationDomain("bitcoin.org"); + if (GetBoolArg("-testnet", false)) // Separate UI settings for testnet + QApplication::setApplicationName("Bitcoin-Qt-testnet"); + else + QApplication::setApplicationName("Bitcoin-Qt"); + + // Now that QSettings are accessible, initialize translations + QTranslator qtTranslatorBase, qtTranslator, translatorBase, translator; + initTranslations(qtTranslatorBase, qtTranslator, translatorBase, translator); + + // User language is set up: pick a data directory + Intro::pickDataDirectory(); + // Do this early as we don't want to bother initializing if we are just calling IPC // ... but do it after creating app, so QCoreApplication::arguments is initialized: if (PaymentServer::ipcSendCommandLine()) @@ -142,53 +200,15 @@ int main(int argc, char *argv[]) // ... then bitcoin.conf: if (!boost::filesystem::is_directory(GetDataDir(false))) { - // This message can not be translated, as translation is not initialized yet - // (which not yet possible because lang=XX can be overridden in bitcoin.conf in the data directory) - QMessageBox::critical(0, "Bitcoin", - QString("Error: Specified data directory \"%1\" does not exist.").arg(QString::fromStdString(mapArgs["-datadir"]))); + QMessageBox::critical(0, QObject::tr("Bitcoin"), + QObject::tr("Error: Specified data directory \"%1\" does not exist.").arg(QString::fromStdString(mapArgs["-datadir"]))); return 1; } ReadConfigFile(mapArgs, mapMultiArgs); - // Application identification (must be set before OptionsModel is initialized, - // as it is used to locate QSettings) - QApplication::setOrganizationName("Bitcoin"); - QApplication::setOrganizationDomain("bitcoin.org"); - if (GetBoolArg("-testnet", false)) // Separate UI settings for testnet - QApplication::setApplicationName("Bitcoin-Qt-testnet"); - else - QApplication::setApplicationName("Bitcoin-Qt"); - // ... then GUI settings: OptionsModel optionsModel; - // Get desired locale (e.g. "de_DE") from command line or use system locale - QString lang_territory = QString::fromStdString(GetArg("-lang", QLocale::system().name().toStdString())); - QString lang = lang_territory; - // Convert to "de" only by truncating "_DE" - lang.truncate(lang_territory.lastIndexOf('_')); - - QTranslator qtTranslatorBase, qtTranslator, translatorBase, translator; - // Load language files for configured locale: - // - First load the translator for the base language, without territory - // - Then load the more specific locale translator - - // Load e.g. qt_de.qm - if (qtTranslatorBase.load("qt_" + lang, QLibraryInfo::location(QLibraryInfo::TranslationsPath))) - app.installTranslator(&qtTranslatorBase); - - // Load e.g. qt_de_DE.qm - if (qtTranslator.load("qt_" + lang_territory, QLibraryInfo::location(QLibraryInfo::TranslationsPath))) - app.installTranslator(&qtTranslator); - - // Load e.g. bitcoin_de.qm (shortcut "de" needs to be defined in bitcoin.qrc) - if (translatorBase.load(lang, ":/translations/")) - app.installTranslator(&translatorBase); - - // Load e.g. bitcoin_de_DE.qm (shortcut "de_DE" needs to be defined in bitcoin.qrc) - if (translator.load(lang_territory, ":/translations/")) - app.installTranslator(&translator); - // Subscribe to global signals from core uiInterface.ThreadSafeMessageBox.connect(ThreadSafeMessageBox); uiInterface.ThreadSafeAskFee.connect(ThreadSafeAskFee); diff --git a/src/qt/forms/intro.ui b/src/qt/forms/intro.ui new file mode 100644 index 0000000000..0f6ae5a7d0 --- /dev/null +++ b/src/qt/forms/intro.ui @@ -0,0 +1,266 @@ + + + Intro + + + + 0 + 0 + 674 + 363 + + + + Welcome + + + + + + QLabel { font-style:italic; } + + + Welcome to Bitcoin-Qt. + + + true + + + + + + + Qt::Vertical + + + QSizePolicy::Minimum + + + + 20 + 15 + + + + + + + + As this is the first time the program is launched, you can choose where Bitcoin-Qt will store its data. + + + true + + + + + + + Bitcoin-Qt will download and store a copy of the Bitcoin block chain. At least %1GB of data will be stored in this directory, and it will grow over time. The wallet will also be stored in this directory. + + + true + + + + + + + Use the default data directory + + + + + + + Use a custom data directory: + + + + + + + 0 + + + QLayout::SetDefaultConstraint + + + + + Qt::Horizontal + + + QSizePolicy::Fixed + + + + 60 + 20 + + + + + + + + QLayout::SetDefaultConstraint + + + + + + + + + + + 0 + 0 + + + + + 30 + 16777215 + + + + … + + + false + + + + + + + + + Qt::Vertical + + + QSizePolicy::Fixed + + + + 20 + 5 + + + + + + + + + 1 + 0 + + + + + + + true + + + + + + + Qt::Vertical + + + QSizePolicy::Fixed + + + + 20 + 5 + + + + + + + + + 0 + 0 + + + + Qt::RichText + + + true + + + + + + + + + + + Qt::Vertical + + + + 20 + 40 + + + + + + + + Qt::Horizontal + + + QDialogButtonBox::Cancel|QDialogButtonBox::Ok + + + + + + + + + buttonBox + accepted() + Intro + accept() + + + 248 + 254 + + + 157 + 274 + + + + + buttonBox + rejected() + Intro + reject() + + + 316 + 260 + + + 286 + 274 + + + + + diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp index 88a6e7226e..3d1e91efdc 100644 --- a/src/qt/guiutil.cpp +++ b/src/qt/guiutil.cpp @@ -500,7 +500,8 @@ HelpMessageBox::HelpMessageBox(QWidget *parent) : uiOptions = tr("UI options") + ":\n" + " -lang= " + tr("Set language, for example \"de_DE\" (default: system locale)") + "\n" + " -min " + tr("Start minimized") + "\n" + - " -splash " + tr("Show splash screen on startup (default: 1)") + "\n"; + " -splash " + tr("Show splash screen on startup (default: 1)") + "\n" + + " -choosedatadir " + tr("Choose data directory on startup (default: 0)") + "\n"; setWindowTitle(tr("Bitcoin-Qt")); setTextFormat(Qt::PlainText); diff --git a/src/qt/intro.cpp b/src/qt/intro.cpp new file mode 100644 index 0000000000..51f3c812e4 --- /dev/null +++ b/src/qt/intro.cpp @@ -0,0 +1,270 @@ +#include "intro.h" +#include "ui_intro.h" +#include "util.h" + +#include +#include +#include + +#include + +/* Minimum free space (in bytes) needed for data directory */ +static const uint64 GB_BYTES = 1000000000LL; +static const uint64 BLOCK_CHAIN_SIZE = 10LL * GB_BYTES; + +/* Check free space asynchronously to prevent hanging the UI thread. + + Up to one request to check a path is in flight to this thread; when the check() + function runs, the current path is requested from the associated Intro object. + The reply is sent back through a signal. + + This ensures that no queue of checking requests is built up while the user is + still entering the path, and that always the most recently entered path is checked as + soon as the thread becomes available. +*/ +class FreespaceChecker : public QObject +{ + Q_OBJECT +public: + FreespaceChecker(Intro *intro); + + enum Status { + ST_OK, + ST_ERROR + }; + +public slots: + void check(); + +signals: + void reply(int status, const QString &message, quint64 available); + +private: + Intro *intro; +}; + +#include "intro.moc" + +FreespaceChecker::FreespaceChecker(Intro *intro) +{ + this->intro = intro; +} + +void FreespaceChecker::check() +{ + namespace fs = boost::filesystem; + QString dataDirStr = intro->getPathToCheck(); + fs::path dataDir = fs::path(dataDirStr.toStdString()); + uint64 freeBytesAvailable = 0; + int replyStatus = ST_OK; + QString replyMessage = tr("A new data directory will be created."); + + /* Find first parent that exists, so that fs::space does not fail */ + fs::path parentDir = dataDir; + while(parentDir.has_parent_path() && !fs::exists(parentDir)) + { + parentDir = parentDir.parent_path(); + } + + try { + freeBytesAvailable = fs::space(parentDir).available; + if(fs::exists(dataDir)) + { + if(fs::is_directory(dataDir)) + { + QString separator = QDir::toNativeSeparators("/"); + replyStatus = ST_OK; + replyMessage = tr("Directory already exists. Add %1name if you intend to create a new directory here.").arg(separator); + } else { + replyStatus = ST_ERROR; + replyMessage = tr("Path already exists, and is not a directory."); + } + } + } catch(fs::filesystem_error &e) + { + /* Parent directory does not exist or is not accessible */ + replyStatus = ST_ERROR; + replyMessage = tr("Cannot create data directory here."); + } + emit reply(replyStatus, replyMessage, freeBytesAvailable); +} + + +Intro::Intro(QWidget *parent) : + QDialog(parent), + ui(new Ui::Intro), + thread(0), + signalled(false) +{ + ui->setupUi(this); + ui->sizeWarningLabel->setText(ui->sizeWarningLabel->text().arg(BLOCK_CHAIN_SIZE/GB_BYTES)); + startThread(); +} + +Intro::~Intro() +{ + delete ui; + /* Ensure thread is finished before it is deleted */ + emit stopThread(); + thread->wait(); +} + +QString Intro::getDataDirectory() +{ + return ui->dataDirectory->text(); +} + +void Intro::setDataDirectory(const QString &dataDir) +{ + ui->dataDirectory->setText(dataDir); + if(dataDir == getDefaultDataDirectory()) + { + ui->dataDirDefault->setChecked(true); + ui->dataDirectory->setEnabled(false); + ui->ellipsisButton->setEnabled(false); + } else { + ui->dataDirCustom->setChecked(true); + ui->dataDirectory->setEnabled(true); + ui->ellipsisButton->setEnabled(true); + } +} + +QString Intro::getDefaultDataDirectory() +{ + return QString::fromStdString(GetDefaultDataDir().string()); +} + +void Intro::pickDataDirectory() +{ + namespace fs = boost::filesystem;; + QSettings settings; + /* If data directory provided on command line, no need to look at settings + or show a picking dialog */ + if(!GetArg("-datadir", "").empty()) + return; + /* 1) Default data directory for operating system */ + QString dataDir = getDefaultDataDirectory(); + /* 2) Allow QSettings to override default dir */ + dataDir = settings.value("strDataDir", dataDir).toString(); + + if(!fs::exists(dataDir.toStdString()) || GetBoolArg("-choosedatadir", false)) + { + /* If current default data directory does not exist, let the user choose one */ + Intro intro; + intro.setDataDirectory(dataDir); + while(true) + { + if(!intro.exec()) + { + /* Cancel clicked */ + exit(0); + } + dataDir = intro.getDataDirectory(); + try { + fs::create_directory(dataDir.toStdString()); + break; + } catch(fs::filesystem_error &e) { + QMessageBox::critical(0, QObject::tr("Bitcoin"), + QObject::tr("Error: Specified data directory \"%1\" can not be created.").arg(dataDir)); + /* fall through, back to choosing screen */ + } + } + + settings.setValue("strDataDir", dataDir); + } + SoftSetArg("-datadir", dataDir.toStdString()); +} + +void Intro::setStatus(int status, const QString &message, quint64 bytesAvailable) +{ + switch(status) + { + case FreespaceChecker::ST_OK: + ui->errorMessage->setText(message); + ui->errorMessage->setStyleSheet(""); + break; + case FreespaceChecker::ST_ERROR: + ui->errorMessage->setText(tr("Error") + ": " + message); + ui->errorMessage->setStyleSheet("QLabel { color: #800000 }"); + break; + } + /* Indicate number of bytes available */ + if(status == FreespaceChecker::ST_ERROR) + { + ui->freeSpace->setText(""); + } else { + QString freeString = QString::number(bytesAvailable/GB_BYTES) + tr("GB of free space available"); + if(bytesAvailable < BLOCK_CHAIN_SIZE) + { + freeString += " " + tr("(of %1GB needed)").arg(BLOCK_CHAIN_SIZE/GB_BYTES); + ui->freeSpace->setStyleSheet("QLabel { color: #800000 }"); + } else { + ui->freeSpace->setStyleSheet(""); + } + ui->freeSpace->setText(freeString+"."); + } + /* Don't allow confirm in ERROR state */ + ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(status != FreespaceChecker::ST_ERROR); +} + +void Intro::on_dataDirectory_textChanged(const QString &dataDirStr) +{ + /* Disable OK button until check result comes in */ + ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(false); + checkPath(dataDirStr); +} + +void Intro::on_ellipsisButton_clicked() +{ + QString dir = QFileDialog::getExistingDirectory(0, "Choose data directory", ui->dataDirectory->text()); + if(!dir.isEmpty()) + ui->dataDirectory->setText(dir); +} + +void Intro::on_dataDirDefault_clicked() +{ + setDataDirectory(getDefaultDataDirectory()); +} + +void Intro::on_dataDirCustom_clicked() +{ + ui->dataDirectory->setEnabled(true); + ui->ellipsisButton->setEnabled(true); +} + +void Intro::startThread() +{ + thread = new QThread(this); + FreespaceChecker *executor = new FreespaceChecker(this); + executor->moveToThread(thread); + + connect(executor, SIGNAL(reply(int,QString,quint64)), this, SLOT(setStatus(int,QString,quint64))); + connect(this, SIGNAL(requestCheck()), executor, SLOT(check())); + /* make sure executor object is deleted in its own thread */ + connect(this, SIGNAL(stopThread()), executor, SLOT(deleteLater())); + connect(this, SIGNAL(stopThread()), thread, SLOT(quit())); + + thread->start(); +} + +void Intro::checkPath(const QString &dataDir) +{ + mutex.lock(); + pathToCheck = dataDir; + if(!signalled) + { + signalled = true; + emit requestCheck(); + } + mutex.unlock(); +} + +QString Intro::getPathToCheck() +{ + QString retval; + mutex.lock(); + retval = pathToCheck; + signalled = false; /* new request can be queued now */ + mutex.unlock(); + return retval; +} diff --git a/src/qt/intro.h b/src/qt/intro.h new file mode 100644 index 0000000000..b246c65a82 --- /dev/null +++ b/src/qt/intro.h @@ -0,0 +1,67 @@ +#ifndef INTRO_H +#define INTRO_H + +#include +#include +#include + +namespace Ui { +class Intro; +} +class FreespaceChecker; + +/** Introduction screen (pre-GUI startup). + Allows the user to choose a data directory, + in which the wallet and block chain will be stored. + */ +class Intro : public QDialog +{ + Q_OBJECT + +public: + explicit Intro(QWidget *parent = 0); + ~Intro(); + + QString getDataDirectory(); + void setDataDirectory(const QString &dataDir); + + /** + * Determine data directory. Let the user choose if the current one doesn't exist. + * + * @note do NOT call global GetDataDir() before calling this function, this + * will cause the wrong path to be cached. + */ + static void pickDataDirectory(); + + /** + * Determine default data directory for operating system. + */ + static QString getDefaultDataDirectory(); +signals: + void requestCheck(); + void stopThread(); + +public slots: + void setStatus(int status, const QString &message, quint64 bytesAvailable); + +private slots: + void on_dataDirectory_textChanged(const QString &arg1); + void on_ellipsisButton_clicked(); + void on_dataDirDefault_clicked(); + void on_dataDirCustom_clicked(); + +private: + Ui::Intro *ui; + QThread *thread; + QMutex mutex; + bool signalled; + QString pathToCheck; + + void startThread(); + void checkPath(const QString &dataDir); + QString getPathToCheck(); + + friend class FreespaceChecker; +}; + +#endif // INTRO_H