[Qt] add utilitydialog.cpp/h and helpmessage class

- adds a nice and well formated dialog, which displays our -? help message
  (all options/paramaters)
- moves aboutdialog.cpp/h to the new utilitydialog
- move GUI shutdown window to utilitydialog

13 files changed, 343 insertions, 162 deletions

diff --git a/contrib/bitcoin-qt.pro b/contrib/bitcoin-qt.pro
index 8bfa4a18a5..3a72d10f47 100644
--- a/contrib/bitcoin-qt.pro
+++ b/contrib/bitcoin-qt.pro
@@ -4,6 +4,7 @@ FORMS += \
     ../src/qt/forms/askpassphrasedialog.ui \
     ../src/qt/forms/coincontroldialog.ui \
     ../src/qt/forms/editaddressdialog.ui \
+    ../src/qt/forms/helpmessagedialog.ui \
     ../src/qt/forms/intro.ui \
     ../src/qt/forms/openuridialog.ui \
     ../src/qt/forms/optionsdialog.ui \
diff --git a/src/qt/Makefile.am b/src/qt/Makefile.am
index 274cebcf3a..3dfe8ee6ca 100644
--- a/src/qt/Makefile.am
+++ b/src/qt/Makefile.am
@@ -80,6 +80,7 @@ QT_FORMS_UI = \
   forms/askpassphrasedialog.ui \
   forms/coincontroldialog.ui \
   forms/editaddressdialog.ui \
+  forms/helpmessagedialog.ui \
   forms/intro.ui \
   forms/openuridialog.ui \
   forms/optionsdialog.ui \
@@ -93,7 +94,6 @@ QT_FORMS_UI = \
   forms/transactiondescdialog.ui
 
 QT_MOC_CPP = \
-  moc_aboutdialog.cpp \
   moc_addressbookpage.cpp \
   moc_addresstablemodel.cpp \
   moc_askpassphrasedialog.cpp \
@@ -133,6 +133,7 @@ QT_MOC_CPP = \
   moc_transactionfilterproxy.cpp \
   moc_transactiontablemodel.cpp \
   moc_transactionview.cpp \
+  moc_utilitydialog.cpp \  
   moc_walletframe.cpp \
   moc_walletmodel.cpp \
   moc_walletview.cpp
@@ -155,7 +156,6 @@ PROTOBUF_H = paymentrequest.pb.h
 PROTOBUF_PROTO = paymentrequest.proto
 
 BITCOIN_QT_H = \
-  aboutdialog.h \
   addressbookpage.h \
   addresstablemodel.h \
   askpassphrasedialog.h \
@@ -198,6 +198,7 @@ BITCOIN_QT_H = \
   transactionrecord.h \
   transactiontablemodel.h \
   transactionview.h \
+  utilitydialog.h \
   walletframe.h \
   walletmodel.h \
   walletmodeltransaction.h \
@@ -248,7 +249,6 @@ RES_ICONS = \
   res/icons/tx_mined.png
 
 BITCOIN_QT_CPP = \
-  aboutdialog.cpp \
   bitcoin.cpp \
   bitcoinaddressvalidator.cpp \
   bitcoinamountfield.cpp \
@@ -267,7 +267,8 @@ BITCOIN_QT_CPP = \
   rpcconsole.cpp \
   signverifymessagedialog.cpp \
   splashscreen.cpp \
-  trafficgraphwidget.cpp
+  trafficgraphwidget.cpp \
+  utilitydialog.cpp
 
 if ENABLE_WALLET
 BITCOIN_QT_CPP += \
diff --git a/src/qt/aboutdialog.cpp b/src/qt/aboutdialog.cpp
deleted file mode 100644
index 6581a19c18..0000000000
--- a/src/qt/aboutdialog.cpp
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
-// file COPYING or http://www.opensource.org/licenses/mit-license.php.
-
-#include "aboutdialog.h"
-#include "ui_aboutdialog.h"
-
-#include "clientmodel.h"
-
-#include "clientversion.h"
-
-AboutDialog::AboutDialog(QWidget *parent) :
-    QDialog(parent),
-    ui(new Ui::AboutDialog)
-{
-    ui->setupUi(this);
-
-    // Set current copyright year
-    ui->copyrightLabel->setText(tr("Copyright") + QString(" © 2009-%1 ").arg(COPYRIGHT_YEAR) + tr("The Bitcoin Core developers"));
-}
-
-void AboutDialog::setModel(ClientModel *model)
-{
-    if(model)
-    {
-        ui->versionLabel->setText(model->formatFullVersion());
-    }
-}
-
-AboutDialog::~AboutDialog()
-{
-    delete ui;
-}
-
-void AboutDialog::on_buttonBox_accepted()
-{
-    close();
-}
diff --git a/src/qt/aboutdialog.h b/src/qt/aboutdialog.h
deleted file mode 100644
index 1b131c4dcc..0000000000
--- a/src/qt/aboutdialog.h
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
-// file COPYING or http://www.opensource.org/licenses/mit-license.php.
-
-#ifndef ABOUTDIALOG_H
-#define ABOUTDIALOG_H
-
-#include <QDialog>
-
-class ClientModel;
-
-namespace Ui {
-    class AboutDialog;
-}
-
-/** "About" dialog box */
-class AboutDialog : public QDialog
-{
-    Q_OBJECT
-
-public:
-    explicit AboutDialog(QWidget *parent);
-    ~AboutDialog();
-
-    void setModel(ClientModel *model);
-
-private:
-    Ui::AboutDialog *ui;
-
-private slots:
-    void on_buttonBox_accepted();
-};
-
-#endif // ABOUTDIALOG_H
diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp
index 3cf7e53c02..848e50deb0 100644
--- a/src/qt/bitcoin.cpp
+++ b/src/qt/bitcoin.cpp
@@ -14,6 +14,7 @@
 #include "intro.h"
 #include "optionsmodel.h"
 #include "splashscreen.h"
+#include "utilitydialog.h"
 #ifdef ENABLE_WALLET
 #include "paymentserver.h"
 #include "walletmodel.h"
@@ -36,8 +37,6 @@
 #include <QTimer>
 #include <QTranslator>
 #include <QThread>
-#include <QVBoxLayout>
-#include <QLabel>
 
 #if defined(QT_STATICPLUGIN)
 #include <QtPlugin>
@@ -356,17 +355,7 @@ void BitcoinApplication::requestShutdown()
     clientModel = 0;
 
     // Show a simple window indicating shutdown status
-    QWidget *shutdownWindow = new QWidget();
-    QVBoxLayout *layout = new QVBoxLayout();
-    layout->addWidget(new QLabel(
-        tr("Bitcoin Core is shutting down...") + "<br /><br />" +
-        tr("Do not shut down the computer until this window disappears.")));
-    shutdownWindow->setLayout(layout);
-
-    // Center shutdown window at where main window was
-    const QPoint global = window->mapToGlobal(window->rect().center());
-    shutdownWindow->move(global.x() - shutdownWindow->width() / 2, global.y() - shutdownWindow->height() / 2);
-    shutdownWindow->show();
+    ShutdownWindow::showShutdownWindow(window);
 
     // Request shutdown from core thread
     emit requestedShutdown();
@@ -503,7 +492,7 @@ int main(int argc, char *argv[])
     // but before showing splash screen.
     if (mapArgs.count("-?") || mapArgs.count("--help"))
     {
-        GUIUtil::HelpMessageBox help;
+        HelpMessageDialog help(NULL);
         help.showOrPrint();
         return 1;
     }
diff --git a/src/qt/bitcoingui.cpp b/src/qt/bitcoingui.cpp
index 692fb6dc1d..1008ef2b08 100644
--- a/src/qt/bitcoingui.cpp
+++ b/src/qt/bitcoingui.cpp
@@ -4,7 +4,6 @@
 
 #include "bitcoingui.h"
 
-#include "aboutdialog.h"
 #include "bitcoinunits.h"
 #include "clientmodel.h"
 #include "guiconstants.h"
@@ -14,6 +13,7 @@
 #include "optionsdialog.h"
 #include "optionsmodel.h"
 #include "rpcconsole.h"
+#include "utilitydialog.h"
 #ifdef ENABLE_WALLET
 #include "walletframe.h"
 #include "walletmodel.h"
diff --git a/src/qt/forms/aboutdialog.ui b/src/qt/forms/aboutdialog.ui
index 10a5857cab..3ab4675bf3 100644
--- a/src/qt/forms/aboutdialog.ui
+++ b/src/qt/forms/aboutdialog.ui
@@ -160,12 +160,12 @@ This product includes software developed by the OpenSSL Project for use in the O
    <slot>accept()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>360</x>
-     <y>308</y>
+     <x>20</x>
+     <y>20</y>
     </hint>
     <hint type="destinationlabel">
-     <x>157</x>
-     <y>274</y>
+     <x>20</x>
+     <y>20</y>
     </hint>
    </hints>
   </connection>
@@ -176,12 +176,12 @@ This product includes software developed by the OpenSSL Project for use in the O
    <slot>reject()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>428</x>
-     <y>308</y>
+     <x>20</x>
+     <y>20</y>
     </hint>
     <hint type="destinationlabel">
-     <x>286</x>
-     <y>274</y>
+     <x>20</x>
+     <y>20</y>
     </hint>
    </hints>
   </connection>
diff --git a/src/qt/forms/helpmessagedialog.ui b/src/qt/forms/helpmessagedialog.ui
new file mode 100644
index 0000000000..f68fea7e64
--- /dev/null
+++ b/src/qt/forms/helpmessagedialog.ui
@@ -0,0 +1,128 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>HelpMessageDialog</class>
+ <widget class="QDialog" name="HelpMessageDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>400</height>
+   </rect>
+  </property>
+  <property name="font">
+   <font>
+    <pointsize>10</pointsize>
+   </font>
+  </property>
+  <property name="windowTitle">
+   <string>Bitcoin Core - Command-line options</string>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout_2">
+   <item>
+    <widget class="QLabel" name="graphic">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Preferred" vsizetype="Ignored">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="pixmap">
+      <pixmap resource="../bitcoin.qrc">:/images/about</pixmap>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <layout class="QVBoxLayout" name="verticalLayout">
+     <item>
+      <widget class="QScrollArea" name="scrollArea">
+       <property name="verticalScrollBarPolicy">
+        <enum>Qt::ScrollBarAlwaysOn</enum>
+       </property>
+       <property name="widgetResizable">
+        <bool>true</bool>
+       </property>
+       <widget class="QWidget" name="scrollAreaWidgetContents">
+        <property name="geometry">
+         <rect>
+          <x>0</x>
+          <y>0</y>
+          <width>659</width>
+          <height>348</height>
+         </rect>
+        </property>
+        <layout class="QVBoxLayout" name="verticalLayout_2">
+         <item>
+          <widget class="QLabel" name="helpMessageLabel">
+           <property name="font">
+            <font>
+             <family>Terminal</family>
+            </font>
+           </property>
+           <property name="cursor">
+            <cursorShape>IBeamCursor</cursorShape>
+           </property>
+           <property name="textFormat">
+            <enum>Qt::PlainText</enum>
+           </property>
+           <property name="textInteractionFlags">
+            <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </widget>
+      </widget>
+     </item>
+     <item>
+      <widget class="QDialogButtonBox" name="okButton">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="standardButtons">
+        <set>QDialogButtonBox::Ok</set>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../bitcoin.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>okButton</sender>
+   <signal>accepted()</signal>
+   <receiver>HelpMessageDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>20</x>
+     <y>20</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>20</x>
+     <y>20</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>okButton</sender>
+   <signal>rejected()</signal>
+   <receiver>HelpMessageDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>20</x>
+     <y>20</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>20</x>
+     <y>20</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp
index b87498402d..2d8a6afe21 100644
--- a/src/qt/guiutil.cpp
+++ b/src/qt/guiutil.cpp
@@ -591,47 +591,6 @@ void restoreWindowGeometry(const QString& strSetting, const QSize& defaultSize,
     parent->move(pos);
 }
 
-HelpMessageBox::HelpMessageBox(QWidget *parent) :
-    QMessageBox(parent)
-{
-    header = tr("Bitcoin Core") + " " + tr("version") + " " +
-        QString::fromStdString(FormatFullVersion()) + "\n\n" +
-        tr("Usage:") + "\n" +
-        "  bitcoin-qt [" + tr("command-line options") + "]                     " + "\n";
-
-    coreOptions = QString::fromStdString(HelpMessage(HMM_BITCOIN_QT));
-
-    uiOptions = tr("UI options") + ":\n" +
-        "  -lang=<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" +
-        "  -choosedatadir         " + tr("Choose data directory on startup (default: 0)") + "\n";
-
-    setWindowTitle(tr("Bitcoin Core"));
-    setTextFormat(Qt::PlainText);
-    // setMinimumWidth is ignored for QMessageBox so put in non-breaking spaces to make it wider.
-    setText(header + QString(QChar(0x2003)).repeated(50));
-    setDetailedText(coreOptions + "\n" + uiOptions);
-}
-
-void HelpMessageBox::printToConsole()
-{
-    // On other operating systems, the expected action is to print the message to the console.
-    QString strUsage = header + "\n" + coreOptions + "\n" + uiOptions;
-    fprintf(stdout, "%s", strUsage.toStdString().c_str());
-}
-
-void HelpMessageBox::showOrPrint()
-{
-#if defined(WIN32)
-        // On Windows, show a message box, as there is no stderr/stdout in windowed applications
-        exec();
-#else
-        // On other operating systems, print help text to console
-        printToConsole();
-#endif
-}
-
 void setClipboard(const QString& str)
 {
     QApplication::clipboard()->setText(str, QClipboard::Clipboard);
diff --git a/src/qt/guiutil.h b/src/qt/guiutil.h
index 14d4ff17c1..c894850a91 100644
--- a/src/qt/guiutil.h
+++ b/src/qt/guiutil.h
@@ -123,26 +123,6 @@ namespace GUIUtil
     /** Restore window size and position */
     void restoreWindowGeometry(const QString& strSetting, const QSize &defaultSizeIn, QWidget *parent);
 
-    /** Help message for Bitcoin-Qt, shown with --help. */
-    class HelpMessageBox : public QMessageBox
-    {
-        Q_OBJECT
-
-    public:
-        HelpMessageBox(QWidget *parent = 0);
-
-        /** Show message box or print help message to standard output, based on operating system. */
-        void showOrPrint();
-
-        /** Print help message to console */
-        void printToConsole();
-
-    private:
-        QString header;
-        QString coreOptions;
-        QString uiOptions;
-    };
-
 } // namespace GUIUtil
 
 #endif // GUIUTIL_H
diff --git a/src/qt/rpcconsole.cpp b/src/qt/rpcconsole.cpp
index a8470572dd..abb6ceb139 100644
--- a/src/qt/rpcconsole.cpp
+++ b/src/qt/rpcconsole.cpp
@@ -7,6 +7,7 @@
 
 #include "clientmodel.h"
 #include "guiutil.h"
+#include "utilitydialog.h"
 
 #include "rpcserver.h"
 #include "rpcclient.h"
@@ -443,8 +444,8 @@ void RPCConsole::scrollToEnd()
 
 void RPCConsole::on_showCLOptionsButton_clicked()
 {
-    GUIUtil::HelpMessageBox help;
-    help.exec();
+    HelpMessageDialog *help = new HelpMessageDialog(this);
+    help->show();
 }
 
 void RPCConsole::on_sldGraphRange_valueChanged(int value)
diff --git a/src/qt/utilitydialog.cpp b/src/qt/utilitydialog.cpp
new file mode 100644
index 0000000000..05a01c7445
--- /dev/null
+++ b/src/qt/utilitydialog.cpp
@@ -0,0 +1,125 @@
+// Copyright (c) 2011-2014 The Bitcoin developers
+// Distributed under the MIT/X11 software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include "utilitydialog.h"
+
+#include "ui_aboutdialog.h"
+#include "ui_helpmessagedialog.h"
+
+#include "bitcoingui.h"
+#include "clientmodel.h"
+#include "guiutil.h"
+
+#include "clientversion.h"
+#include "init.h"
+#include "util.h"
+
+#include <QLabel>
+#include <QVBoxLayout>
+
+/** "About" dialog box */
+AboutDialog::AboutDialog(QWidget *parent) :
+    QDialog(parent),
+    ui(new Ui::AboutDialog)
+{
+    ui->setupUi(this);
+
+    // Set current copyright year
+    ui->copyrightLabel->setText(tr("Copyright") + QString(" &copy; 2009-%1 ").arg(COPYRIGHT_YEAR) + tr("The Bitcoin Core developers"));
+}
+
+void AboutDialog::setModel(ClientModel *model)
+{
+    if(model)
+    {
+        ui->versionLabel->setText(model->formatFullVersion());
+    }
+}
+
+AboutDialog::~AboutDialog()
+{
+    delete ui;
+}
+
+void AboutDialog::on_buttonBox_accepted()
+{
+    close();
+}
+
+/** "Help message" dialog box */
+HelpMessageDialog::HelpMessageDialog(QWidget *parent) :
+    QDialog(parent),
+    ui(new Ui::HelpMessageDialog)
+{
+    ui->setupUi(this);
+    GUIUtil::restoreWindowGeometry("nHelpMessageDialogWindow", this->size(), this);
+
+    header = tr("Bitcoin Core") + " " + tr("version") + " " +
+        QString::fromStdString(FormatFullVersion()) + "\n\n" +
+        tr("Usage:") + "\n" +
+        "  bitcoin-qt [" + tr("command-line options") + "]                     " + "\n";
+
+    coreOptions = QString::fromStdString(HelpMessage(HMM_BITCOIN_QT));
+
+    uiOptions = tr("UI options") + ":\n" +
+        "  -lang=<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" +
+        "  -choosedatadir         " + tr("Choose data directory on startup (default: 0)");
+
+    ui->helpMessageLabel->setFont(GUIUtil::bitcoinAddressFont());
+
+    // Set help message text
+    ui->helpMessageLabel->setText(header + "\n" + coreOptions + "\n" + uiOptions);
+}
+
+HelpMessageDialog::~HelpMessageDialog()
+{
+    GUIUtil::saveWindowGeometry("nHelpMessageDialogWindow", this);
+    delete ui;
+}
+
+void HelpMessageDialog::printToConsole()
+{
+    // On other operating systems, the expected action is to print the message to the console.
+    QString strUsage = header + "\n" + coreOptions + "\n" + uiOptions;
+    fprintf(stdout, "%s", strUsage.toStdString().c_str());
+}
+
+void HelpMessageDialog::showOrPrint()
+{
+#if defined(WIN32)
+        // On Windows, show a message box, as there is no stderr/stdout in windowed applications
+        exec();
+#else
+        // On other operating systems, print help text to console
+        printToConsole();
+#endif
+}
+
+void HelpMessageDialog::on_okButton_accepted()
+{
+    close();
+}
+
+
+/** "Shutdown" window */
+void ShutdownWindow::showShutdownWindow(BitcoinGUI *window)
+{
+    if (!window)
+        return;
+
+    // Show a simple window indicating shutdown status
+    QWidget *shutdownWindow = new QWidget();
+    QVBoxLayout *layout = new QVBoxLayout();
+    layout->addWidget(new QLabel(
+        tr("Bitcoin Core is shutting down...") + "<br /><br />" +
+        tr("Do not shut down the computer until this window disappears.")));
+    shutdownWindow->setLayout(layout);
+
+    // Center shutdown window at where main window was
+    const QPoint global = window->mapToGlobal(window->rect().center());
+    shutdownWindow->move(global.x() - shutdownWindow->width() / 2, global.y() - shutdownWindow->height() / 2);
+    shutdownWindow->show();
+}
diff --git a/src/qt/utilitydialog.h b/src/qt/utilitydialog.h
new file mode 100644
index 0000000000..874daf6a7f
--- /dev/null
+++ b/src/qt/utilitydialog.h
@@ -0,0 +1,69 @@
+// Copyright (c) 2011-2014 The Bitcoin developers
+// Distributed under the MIT/X11 software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef UTILITYDIALOG_H
+#define UTILITYDIALOG_H
+
+#include <QDialog>
+#include <QObject>
+
+class BitcoinGUI;
+class ClientModel;
+
+namespace Ui {
+    class AboutDialog;
+    class HelpMessageDialog;
+}
+
+/** "About" dialog box */
+class AboutDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit AboutDialog(QWidget *parent);
+    ~AboutDialog();
+
+    void setModel(ClientModel *model);
+
+private:
+    Ui::AboutDialog *ui;
+
+private slots:
+    void on_buttonBox_accepted();
+};
+
+/** "Help message" dialog box */
+class HelpMessageDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit HelpMessageDialog(QWidget *parent);
+    ~HelpMessageDialog();
+
+    void printToConsole();
+    void showOrPrint();
+
+private:
+    Ui::HelpMessageDialog *ui;
+    QString header;
+    QString coreOptions;
+    QString uiOptions;
+
+private slots:
+    void on_okButton_accepted();
+};
+
+
+/** "Shutdown" window */
+class ShutdownWindow : public QObject
+{
+    Q_OBJECT
+
+public:
+    static void showShutdownWindow(BitcoinGUI *window);
+};
+
+#endif // UTILITYDIALOG_H