mirror of https://github.com/bitcoin/bitcoin
Merge pull request #2670 from laanwj/2013_05_datadir
qt: allow user to choose data directorypull/2835/merge
Wladimir J. van der Laan
11 years ago
commit
4eab2dcc81
@ -0,0 +1,266 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
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||||
<ui version="4.0">
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||||
<class>Intro</class>
|
||||
<widget class="QDialog" name="Intro">
|
||||
<property name="geometry">
|
||||
<rect>
|
||||
<x>0</x>
|
||||
<y>0</y>
|
||||
<width>674</width>
|
||||
<height>363</height>
|
||||
</rect>
|
||||
</property>
|
||||
<property name="windowTitle">
|
||||
<string>Welcome</string>
|
||||
</property>
|
||||
<layout class="QVBoxLayout" name="verticalLayout">
|
||||
<item>
|
||||
<widget class="QLabel" name="label_2">
|
||||
<property name="styleSheet">
|
||||
<string notr="true">QLabel { font-style:italic; }</string>
|
||||
</property>
|
||||
<property name="text">
|
||||
<string>Welcome to Bitcoin-Qt.</string>
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||||
</property>
|
||||
<property name="wordWrap">
|
||||
<bool>true</bool>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item>
|
||||
<spacer name="verticalSpacer_4">
|
||||
<property name="orientation">
|
||||
<enum>Qt::Vertical</enum>
|
||||
</property>
|
||||
<property name="sizeType">
|
||||
<enum>QSizePolicy::Minimum</enum>
|
||||
</property>
|
||||
<property name="sizeHint" stdset="0">
|
||||
<size>
|
||||
<width>20</width>
|
||||
<height>15</height>
|
||||
</size>
|
||||
</property>
|
||||
</spacer>
|
||||
</item>
|
||||
<item>
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||||
<widget class="QLabel" name="label_4">
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||||
<property name="text">
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<string>As this is the first time the program is launched, you can choose where Bitcoin-Qt will store its data.</string>
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</property>
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<property name="wordWrap">
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||||
<bool>true</bool>
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||||
</property>
|
||||
</widget>
|
||||
</item>
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||||
<item>
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<widget class="QLabel" name="sizeWarningLabel">
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<property name="text">
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<string>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.</string>
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</property>
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<property name="wordWrap">
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<bool>true</bool>
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</property>
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||||
</widget>
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||||
</item>
|
||||
<item>
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<widget class="QRadioButton" name="dataDirDefault">
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||||
<property name="text">
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<string>Use the default data directory</string>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QRadioButton" name="dataDirCustom">
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<property name="text">
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<string>Use a custom data directory:</string>
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</property>
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</widget>
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</item>
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<item>
|
||||
<layout class="QHBoxLayout" name="horizontalLayout">
|
||||
<property name="spacing">
|
||||
<number>0</number>
|
||||
</property>
|
||||
<property name="sizeConstraint">
|
||||
<enum>QLayout::SetDefaultConstraint</enum>
|
||||
</property>
|
||||
<item>
|
||||
<spacer name="horizontalSpacer">
|
||||
<property name="orientation">
|
||||
<enum>Qt::Horizontal</enum>
|
||||
</property>
|
||||
<property name="sizeType">
|
||||
<enum>QSizePolicy::Fixed</enum>
|
||||
</property>
|
||||
<property name="sizeHint" stdset="0">
|
||||
<size>
|
||||
<width>60</width>
|
||||
<height>20</height>
|
||||
</size>
|
||||
</property>
|
||||
</spacer>
|
||||
</item>
|
||||
<item>
|
||||
<layout class="QVBoxLayout" name="verticalLayout_2">
|
||||
<property name="sizeConstraint">
|
||||
<enum>QLayout::SetDefaultConstraint</enum>
|
||||
</property>
|
||||
<item>
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||||
<layout class="QHBoxLayout" name="horizontalLayout_2">
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||||
<item>
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||||
<widget class="QLineEdit" name="dataDirectory"/>
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||||
</item>
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||||
<item>
|
||||
<widget class="QPushButton" name="ellipsisButton">
|
||||
<property name="sizePolicy">
|
||||
<sizepolicy hsizetype="Minimum" vsizetype="Fixed">
|
||||
<horstretch>0</horstretch>
|
||||
<verstretch>0</verstretch>
|
||||
</sizepolicy>
|
||||
</property>
|
||||
<property name="maximumSize">
|
||||
<size>
|
||||
<width>30</width>
|
||||
<height>16777215</height>
|
||||
</size>
|
||||
</property>
|
||||
<property name="text">
|
||||
<string notr="true">…</string>
|
||||
</property>
|
||||
<property name="autoDefault">
|
||||
<bool>false</bool>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
</layout>
|
||||
</item>
|
||||
<item>
|
||||
<spacer name="verticalSpacer_3">
|
||||
<property name="orientation">
|
||||
<enum>Qt::Vertical</enum>
|
||||
</property>
|
||||
<property name="sizeType">
|
||||
<enum>QSizePolicy::Fixed</enum>
|
||||
</property>
|
||||
<property name="sizeHint" stdset="0">
|
||||
<size>
|
||||
<width>20</width>
|
||||
<height>5</height>
|
||||
</size>
|
||||
</property>
|
||||
</spacer>
|
||||
</item>
|
||||
<item>
|
||||
<widget class="QLabel" name="freeSpace">
|
||||
<property name="sizePolicy">
|
||||
<sizepolicy hsizetype="Preferred" vsizetype="Expanding">
|
||||
<horstretch>1</horstretch>
|
||||
<verstretch>0</verstretch>
|
||||
</sizepolicy>
|
||||
</property>
|
||||
<property name="text">
|
||||
<string/>
|
||||
</property>
|
||||
<property name="wordWrap">
|
||||
<bool>true</bool>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item>
|
||||
<spacer name="verticalSpacer_2">
|
||||
<property name="orientation">
|
||||
<enum>Qt::Vertical</enum>
|
||||
</property>
|
||||
<property name="sizeType">
|
||||
<enum>QSizePolicy::Fixed</enum>
|
||||
</property>
|
||||
<property name="sizeHint" stdset="0">
|
||||
<size>
|
||||
<width>20</width>
|
||||
<height>5</height>
|
||||
</size>
|
||||
</property>
|
||||
</spacer>
|
||||
</item>
|
||||
<item>
|
||||
<widget class="QLabel" name="errorMessage">
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||||
<property name="sizePolicy">
|
||||
<sizepolicy hsizetype="Preferred" vsizetype="Expanding">
|
||||
<horstretch>0</horstretch>
|
||||
<verstretch>0</verstretch>
|
||||
</sizepolicy>
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||||
</property>
|
||||
<property name="textFormat">
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||||
<enum>Qt::RichText</enum>
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||||
</property>
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||||
<property name="wordWrap">
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||||
<bool>true</bool>
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||||
</property>
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||||
</widget>
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||||
</item>
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||||
</layout>
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||||
</item>
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||||
</layout>
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||||
</item>
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||||
<item>
|
||||
<spacer name="verticalSpacer">
|
||||
<property name="orientation">
|
||||
<enum>Qt::Vertical</enum>
|
||||
</property>
|
||||
<property name="sizeHint" stdset="0">
|
||||
<size>
|
||||
<width>20</width>
|
||||
<height>40</height>
|
||||
</size>
|
||||
</property>
|
||||
</spacer>
|
||||
</item>
|
||||
<item>
|
||||
<widget class="QDialogButtonBox" name="buttonBox">
|
||||
<property name="orientation">
|
||||
<enum>Qt::Horizontal</enum>
|
||||
</property>
|
||||
<property name="standardButtons">
|
||||
<set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
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||||
</property>
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||||
</widget>
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||||
</item>
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||||
</layout>
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||||
</widget>
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||||
<resources/>
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||||
<connections>
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||||
<connection>
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<sender>buttonBox</sender>
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<signal>accepted()</signal>
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<receiver>Intro</receiver>
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<slot>accept()</slot>
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||||
<hints>
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||||
<hint type="sourcelabel">
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||||
<x>248</x>
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||||
<y>254</y>
|
||||
</hint>
|
||||
<hint type="destinationlabel">
|
||||
<x>157</x>
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||||
<y>274</y>
|
||||
</hint>
|
||||
</hints>
|
||||
</connection>
|
||||
<connection>
|
||||
<sender>buttonBox</sender>
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||||
<signal>rejected()</signal>
|
||||
<receiver>Intro</receiver>
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||||
<slot>reject()</slot>
|
||||
<hints>
|
||||
<hint type="sourcelabel">
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||||
<x>316</x>
|
||||
<y>260</y>
|
||||
</hint>
|
||||
<hint type="destinationlabel">
|
||||
<x>286</x>
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||||
<y>274</y>
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||||
</hint>
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||||
</hints>
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||||
</connection>
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||||
</connections>
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</ui>
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@ -0,0 +1,270 @@
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#include "intro.h"
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#include "ui_intro.h"
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#include "util.h"
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#include <QFileDialog>
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#include <QSettings>
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#include <QMessageBox>
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#include <boost/filesystem.hpp>
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/* Minimum free space (in bytes) needed for data directory */
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static const uint64 GB_BYTES = 1000000000LL;
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static const uint64 BLOCK_CHAIN_SIZE = 10LL * GB_BYTES;
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/* Check free space asynchronously to prevent hanging the UI thread.
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Up to one request to check a path is in flight to this thread; when the check()
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function runs, the current path is requested from the associated Intro object.
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The reply is sent back through a signal.
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This ensures that no queue of checking requests is built up while the user is
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still entering the path, and that always the most recently entered path is checked as
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soon as the thread becomes available.
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*/
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class FreespaceChecker : public QObject
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{
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Q_OBJECT
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public:
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FreespaceChecker(Intro *intro);
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enum Status {
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ST_OK,
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ST_ERROR
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};
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public slots:
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void check();
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signals:
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void reply(int status, const QString &message, quint64 available);
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private:
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Intro *intro;
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};
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#include "intro.moc"
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FreespaceChecker::FreespaceChecker(Intro *intro)
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{
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this->intro = intro;
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}
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void FreespaceChecker::check()
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{
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namespace fs = boost::filesystem;
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QString dataDirStr = intro->getPathToCheck();
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fs::path dataDir = fs::path(dataDirStr.toStdString());
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uint64 freeBytesAvailable = 0;
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int replyStatus = ST_OK;
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QString replyMessage = tr("A new data directory will be created.");
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/* Find first parent that exists, so that fs::space does not fail */
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fs::path parentDir = dataDir;
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while(parentDir.has_parent_path() && !fs::exists(parentDir))
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{
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parentDir = parentDir.parent_path();
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}
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try {
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freeBytesAvailable = fs::space(parentDir).available;
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if(fs::exists(dataDir))
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{
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if(fs::is_directory(dataDir))
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{
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QString separator = QDir::toNativeSeparators("/");
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replyStatus = ST_OK;
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replyMessage = tr("Directory already exists. Add <code>%1name</code> if you intend to create a new directory here.").arg(separator);
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} else {
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replyStatus = ST_ERROR;
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replyMessage = tr("Path already exists, and is not a directory.");
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}
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}
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} catch(fs::filesystem_error &e)
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{
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/* Parent directory does not exist or is not accessible */
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replyStatus = ST_ERROR;
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replyMessage = tr("Cannot create data directory here.");
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}
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emit reply(replyStatus, replyMessage, freeBytesAvailable);
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}
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Intro::Intro(QWidget *parent) :
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||||
QDialog(parent),
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ui(new Ui::Intro),
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||||
thread(0),
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signalled(false)
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||||
{
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ui->setupUi(this);
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ui->sizeWarningLabel->setText(ui->sizeWarningLabel->text().arg(BLOCK_CHAIN_SIZE/GB_BYTES));
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startThread();
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}
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Intro::~Intro()
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||||
{
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||||
delete ui;
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/* Ensure thread is finished before it is deleted */
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emit stopThread();
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thread->wait();
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}
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QString Intro::getDataDirectory()
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||||
{
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||||
return ui->dataDirectory->text();
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}
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void Intro::setDataDirectory(const QString &dataDir)
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{
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||||
ui->dataDirectory->setText(dataDir);
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||||
if(dataDir == getDefaultDataDirectory())
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{
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||||
ui->dataDirDefault->setChecked(true);
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ui->dataDirectory->setEnabled(false);
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ui->ellipsisButton->setEnabled(false);
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||||
} else {
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||||
ui->dataDirCustom->setChecked(true);
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||||
ui->dataDirectory->setEnabled(true);
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||||
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;
|
||||
}
|
||||
@ -0,0 +1,67 @@
|
||||
#ifndef INTRO_H
|
||||
#define INTRO_H
|
||||
|
||||
#include <QDialog>
|
||||
#include <QThread>
|
||||
#include <QMutex>
|
||||
|
||||
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
|
||||
Loading…
Reference in new issue