transaction details dialog on doubleclick

11 files changed, 486 insertions, 13 deletions

diff --git a/README.rst b/README.rst
index 9856370bc9..a1932d8419 100644
--- a/README.rst
+++ b/README.rst
@@ -24,7 +24,9 @@ This has been implemented:
 
 - Sending coins (including ask for fee when needed)
 
-- Show messages from core
+- Show error messages from core
+
+- Show details dialog for transactions (on double click)
 
 This has to be done:
 
@@ -34,6 +36,4 @@ This has to be done:
 
 - Build on Windows
 
-- Show details dialog for transactions (on double click)
-
 - More thorough testing of the view with all the kinds of transactions (sendmany, generation)
diff --git a/bitcoin.pro b/bitcoin.pro
index 9a3570aa58..7758376f7c 100644
--- a/bitcoin.pro
+++ b/bitcoin.pro
@@ -63,7 +63,9 @@ HEADERS += gui/include/bitcoingui.h \
     gui/include/guiconstants.h \
     gui/include/optionsmodel.h \
     gui/include/monitoreddatamapper.h \
-    core/include/externui.h
+    core/include/externui.h \
+    gui/include/transactiondesc.h \
+    gui/include/transactiondescdialog.h
 SOURCES += gui/src/bitcoin.cpp gui/src/bitcoingui.cpp \
     gui/src/transactiontablemodel.cpp \
     gui/src/addresstablemodel.cpp \
@@ -90,7 +92,9 @@ SOURCES += gui/src/bitcoin.cpp gui/src/bitcoingui.cpp \
     gui/src/guiutil.cpp \
     gui/src/transactionrecord.cpp \
     gui/src/optionsmodel.cpp \
-    gui/src/monitoreddatamapper.cpp
+    gui/src/monitoreddatamapper.cpp \
+    gui/src/transactiondesc.cpp \
+    gui/src/transactiondescdialog.cpp
 
 RESOURCES += \
     gui/bitcoin.qrc
@@ -99,4 +103,5 @@ FORMS += \
     gui/forms/sendcoinsdialog.ui \
     gui/forms/addressbookdialog.ui \
     gui/forms/aboutdialog.ui \
-    gui/forms/editaddressdialog.ui
+    gui/forms/editaddressdialog.ui \
+    gui/forms/transactiondescdialog.ui
diff --git a/gui/forms/transactiondescdialog.ui b/gui/forms/transactiondescdialog.ui
new file mode 100644
index 0000000000..8a44734da7
--- /dev/null
+++ b/gui/forms/transactiondescdialog.ui
@@ -0,0 +1,67 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>TransactionDescDialog</class>
+ <widget class="QDialog" name="TransactionDescDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Transaction details</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QTextEdit" name="detailText"/>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Close</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>TransactionDescDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>TransactionDescDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/gui/include/bitcoingui.h b/gui/include/bitcoingui.h
index ab7b4bbdb6..e18e2ff21a 100644
--- a/gui/include/bitcoingui.h
+++ b/gui/include/bitcoingui.h
@@ -4,7 +4,6 @@
 #include <QMainWindow>
 #include <QSystemTrayIcon>
 
-/* Forward declarations */
 class TransactionTableModel;
 class ClientModel;
 
@@ -13,6 +12,7 @@ class QLabel;
 class QLineEdit;
 class QTableView;
 class QAbstractItemModel;
+class QModelIndex;
 QT_END_NAMESPACE
 
 class BitcoinGUI : public QMainWindow
@@ -66,6 +66,10 @@ public slots:
     void setNumBlocks(int count);
     void setNumTransactions(int count);
     void error(const QString &title, const QString &message);
+    /* It is currently not possible to pass a return value to another thread through
+       BlockingQueuedConnection, so use an indirected pointer.
+       http://bugreports.qt.nokia.com/browse/QTBUG-10440
+    */
     void askFee(qint64 nFeeRequired, bool *payFee);
 
 private slots:
@@ -77,6 +81,7 @@ private slots:
     void newAddressClicked();
     void copyClipboardClicked();
     void trayIconActivated(QSystemTrayIcon::ActivationReason reason);
+    void transactionDetails(const QModelIndex& idx);
 };
 
 #endif
diff --git a/gui/include/transactiondesc.h b/gui/include/transactiondesc.h
new file mode 100644
index 0000000000..5a85949341
--- /dev/null
+++ b/gui/include/transactiondesc.h
@@ -0,0 +1,15 @@
+#ifndef TRANSACTIONDESC_H
+#define TRANSACTIONDESC_H
+
+#include <string>
+
+class CWalletTx;
+
+class TransactionDesc
+{
+public:
+    /* Provide human-readable extended HTML description of a transaction */
+    static std::string toHTML(CWalletTx &wtx);
+};
+
+#endif // TRANSACTIONDESC_H
diff --git a/gui/include/transactiondescdialog.h b/gui/include/transactiondescdialog.h
new file mode 100644
index 0000000000..4f8f754b2b
--- /dev/null
+++ b/gui/include/transactiondescdialog.h
@@ -0,0 +1,25 @@
+#ifndef TRANSACTIONDESCDIALOG_H
+#define TRANSACTIONDESCDIALOG_H
+
+#include <QDialog>
+
+namespace Ui {
+    class TransactionDescDialog;
+}
+QT_BEGIN_NAMESPACE
+class QModelIndex;
+QT_END_NAMESPACE
+
+class TransactionDescDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit TransactionDescDialog(const QModelIndex &idx, QWidget *parent = 0);
+    ~TransactionDescDialog();
+
+private:
+    Ui::TransactionDescDialog *ui;
+};
+
+#endif // TRANSACTIONDESCDIALOG_H
diff --git a/gui/include/transactiontablemodel.h b/gui/include/transactiontablemodel.h
index 70377ea0d5..47e4e4cf14 100644
--- a/gui/include/transactiontablemodel.h
+++ b/gui/include/transactiontablemodel.h
@@ -23,7 +23,8 @@ public:
     } ColumnIndex;
 
     enum {
-        TypeRole = Qt::UserRole
+        TypeRole = Qt::UserRole,
+        LongDescriptionRole = Qt::UserRole+1
     } RoleIndex;
 
     /* TypeRole values */
diff --git a/gui/src/bitcoingui.cpp b/gui/src/bitcoingui.cpp
index ed7d133a39..c92a546ea4 100644
--- a/gui/src/bitcoingui.cpp
+++ b/gui/src/bitcoingui.cpp
@@ -13,6 +13,7 @@
 #include "guiutil.h"
 #include "editaddressdialog.h"
 #include "optionsmodel.h"
+#include "transactiondescdialog.h"
 
 #include "main.h"
 
@@ -212,6 +213,8 @@ QWidget *BitcoinGUI::createTabs()
     {
         QTableView *view = new QTableView(this);
         tabs->addTab(view, tab_labels.at(i));
+
+        connect(view, SIGNAL(activated(const QModelIndex&)), this, SLOT(transactionDetails(const QModelIndex&)));
         transactionViews.append(view);
     }
 
@@ -396,3 +399,11 @@ void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
     *payFee = (retval == QMessageBox::Yes);
 }
+
+void BitcoinGUI::transactionDetails(const QModelIndex& idx)
+{
+    /* A transaction is doubleclicked */
+    TransactionDescDialog dlg(idx);
+    dlg.exec();
+}
+
diff --git a/gui/src/transactiondesc.cpp b/gui/src/transactiondesc.cpp
new file mode 100644
index 0000000000..4d8a55e99a
--- /dev/null
+++ b/gui/src/transactiondesc.cpp
@@ -0,0 +1,310 @@
+#include <transactiondesc.h>
+
+#include "guiutil.h"
+#include "main.h"
+
+#include <QString>
+
+/* Taken straight from ui.cpp
+   TODO: Convert to use QStrings, Qt::Escape and tr()
+ */
+
+using namespace std;
+
+static string HtmlEscape(const char* psz, bool fMultiLine=false)
+{
+    int len = 0;
+    for (const char* p = psz; *p; p++)
+    {
+             if (*p == '<') len += 4;
+        else if (*p == '>') len += 4;
+        else if (*p == '&') len += 5;
+        else if (*p == '"') len += 6;
+        else if (*p == ' ' && p > psz && p[-1] == ' ' && p[1] == ' ') len += 6;
+        else if (*p == '\n' && fMultiLine) len += 5;
+        else
+            len++;
+    }
+    string str;
+    str.reserve(len);
+    for (const char* p = psz; *p; p++)
+    {
+             if (*p == '<') str += "&lt;";
+        else if (*p == '>') str += "&gt;";
+        else if (*p == '&') str += "&amp;";
+        else if (*p == '"') str += "&quot;";
+        else if (*p == ' ' && p > psz && p[-1] == ' ' && p[1] == ' ') str += "&nbsp;";
+        else if (*p == '\n' && fMultiLine) str += "<br>\n";
+        else
+            str += *p;
+    }
+    return str;
+}
+
+static string HtmlEscape(const string& str, bool fMultiLine=false)
+{
+    return HtmlEscape(str.c_str(), fMultiLine);
+}
+
+static string FormatTxStatus(const CWalletTx& wtx)
+{
+    // Status
+    if (!wtx.IsFinal())
+    {
+        if (wtx.nLockTime < 500000000)
+            return strprintf(_("Open for %d blocks"), nBestHeight - wtx.nLockTime);
+        else
+            return strprintf(_("Open until %s"), GUIUtil::DateTimeStr(wtx.nLockTime).toStdString().c_str());
+    }
+    else
+    {
+        int nDepth = wtx.GetDepthInMainChain();
+        if (GetAdjustedTime() - wtx.nTimeReceived > 2 * 60 && wtx.GetRequestCount() == 0)
+            return strprintf(_("%d/offline?"), nDepth);
+        else if (nDepth < 6)
+            return strprintf(_("%d/unconfirmed"), nDepth);
+        else
+            return strprintf(_("%d confirmations"), nDepth);
+    }
+}
+
+string TransactionDesc::toHTML(CWalletTx &wtx)
+{
+    string strHTML;
+    CRITICAL_BLOCK(cs_mapAddressBook)
+    {
+        strHTML.reserve(4000);
+        strHTML += "<html><font face='verdana, arial, helvetica, sans-serif'>";
+
+        int64 nTime = wtx.GetTxTime();
+        int64 nCredit = wtx.GetCredit();
+        int64 nDebit = wtx.GetDebit();
+        int64 nNet = nCredit - nDebit;
+
+
+
+        strHTML += _("<b>Status:</b> ") + FormatTxStatus(wtx);
+        int nRequests = wtx.GetRequestCount();
+        if (nRequests != -1)
+        {
+            if (nRequests == 0)
+                strHTML += _(", has not been successfully broadcast yet");
+            else if (nRequests == 1)
+                strHTML += strprintf(_(", broadcast through %d node"), nRequests);
+            else
+                strHTML += strprintf(_(", broadcast through %d nodes"), nRequests);
+        }
+        strHTML += "<br>";
+
+        strHTML += _("<b>Date:</b> ") + (nTime ? GUIUtil::DateTimeStr(nTime).toStdString() : "") + "<br>";
+
+
+        //
+        // From
+        //
+        if (wtx.IsCoinBase())
+        {
+            strHTML += _("<b>Source:</b> Generated<br>");
+        }
+        else if (!wtx.mapValue["from"].empty())
+        {
+            // Online transaction
+            if (!wtx.mapValue["from"].empty())
+                strHTML += _("<b>From:</b> ") + HtmlEscape(wtx.mapValue["from"]) + "<br>";
+        }
+        else
+        {
+            // Offline transaction
+            if (nNet > 0)
+            {
+                // Credit
+                BOOST_FOREACH(const CTxOut& txout, wtx.vout)
+                {
+                    if (txout.IsMine())
+                    {
+                        vector<unsigned char> vchPubKey;
+                        if (ExtractPubKey(txout.scriptPubKey, true, vchPubKey))
+                        {
+                            string strAddress = PubKeyToAddress(vchPubKey);
+                            if (mapAddressBook.count(strAddress))
+                            {
+                                strHTML += string() + _("<b>From:</b> ") + _("unknown") + "<br>";
+                                strHTML += _("<b>To:</b> ");
+                                strHTML += HtmlEscape(strAddress);
+                                if (!mapAddressBook[strAddress].empty())
+                                    strHTML += _(" (yours, label: ") + mapAddressBook[strAddress] + ")";
+                                else
+                                    strHTML += _(" (yours)");
+                                strHTML += "<br>";
+                            }
+                        }
+                        break;
+                    }
+                }
+            }
+        }
+
+
+        //
+        // To
+        //
+        string strAddress;
+        if (!wtx.mapValue["to"].empty())
+        {
+            // Online transaction
+            strAddress = wtx.mapValue["to"];
+            strHTML += _("<b>To:</b> ");
+            if (mapAddressBook.count(strAddress) && !mapAddressBook[strAddress].empty())
+                strHTML += mapAddressBook[strAddress] + " ";
+            strHTML += HtmlEscape(strAddress) + "<br>";
+        }
+
+
+        //
+        // Amount
+        //
+        if (wtx.IsCoinBase() && nCredit == 0)
+        {
+            //
+            // Coinbase
+            //
+            int64 nUnmatured = 0;
+            BOOST_FOREACH(const CTxOut& txout, wtx.vout)
+                nUnmatured += txout.GetCredit();
+            strHTML += _("<b>Credit:</b> ");
+            if (wtx.IsInMainChain())
+                strHTML += strprintf(_("(%s matures in %d more blocks)"), FormatMoney(nUnmatured).c_str(), wtx.GetBlocksToMaturity());
+            else
+                strHTML += _("(not accepted)");
+            strHTML += "<br>";
+        }
+        else if (nNet > 0)
+        {
+            //
+            // Credit
+            //
+            strHTML += _("<b>Credit:</b> ") + FormatMoney(nNet) + "<br>";
+        }
+        else
+        {
+            bool fAllFromMe = true;
+            BOOST_FOREACH(const CTxIn& txin, wtx.vin)
+                fAllFromMe = fAllFromMe && txin.IsMine();
+
+            bool fAllToMe = true;
+            BOOST_FOREACH(const CTxOut& txout, wtx.vout)
+                fAllToMe = fAllToMe && txout.IsMine();
+
+            if (fAllFromMe)
+            {
+                //
+                // Debit
+                //
+                BOOST_FOREACH(const CTxOut& txout, wtx.vout)
+                {
+                    if (txout.IsMine())
+                        continue;
+
+                    if (wtx.mapValue["to"].empty())
+                    {
+                        // Offline transaction
+                        uint160 hash160;
+                        if (ExtractHash160(txout.scriptPubKey, hash160))
+                        {
+                            string strAddress = Hash160ToAddress(hash160);
+                            strHTML += _("<b>To:</b> ");
+                            if (mapAddressBook.count(strAddress) && !mapAddressBook[strAddress].empty())
+                                strHTML += mapAddressBook[strAddress] + " ";
+                            strHTML += strAddress;
+                            strHTML += "<br>";
+                        }
+                    }
+
+                    strHTML += _("<b>Debit:</b> ") + FormatMoney(-txout.nValue) + "<br>";
+                }
+
+                if (fAllToMe)
+                {
+                    // Payment to self
+                    int64 nChange = wtx.GetChange();
+                    int64 nValue = nCredit - nChange;
+                    strHTML += _("<b>Debit:</b> ") + FormatMoney(-nValue) + "<br>";
+                    strHTML += _("<b>Credit:</b> ") + FormatMoney(nValue) + "<br>";
+                }
+
+                int64 nTxFee = nDebit - wtx.GetValueOut();
+                if (nTxFee > 0)
+                    strHTML += _("<b>Transaction fee:</b> ") + FormatMoney(-nTxFee) + "<br>";
+            }
+            else
+            {
+                //
+                // Mixed debit transaction
+                //
+                BOOST_FOREACH(const CTxIn& txin, wtx.vin)
+                    if (txin.IsMine())
+                        strHTML += _("<b>Debit:</b> ") + FormatMoney(-txin.GetDebit()) + "<br>";
+                BOOST_FOREACH(const CTxOut& txout, wtx.vout)
+                    if (txout.IsMine())
+                        strHTML += _("<b>Credit:</b> ") + FormatMoney(txout.GetCredit()) + "<br>";
+            }
+        }
+
+        strHTML += _("<b>Net amount:</b> ") + FormatMoney(nNet, true) + "<br>";
+
+
+        //
+        // Message
+        //
+        if (!wtx.mapValue["message"].empty())
+            strHTML += string() + "<br><b>" + _("Message:") + "</b><br>" + HtmlEscape(wtx.mapValue["message"], true) + "<br>";
+        if (!wtx.mapValue["comment"].empty())
+            strHTML += string() + "<br><b>" + _("Comment:") + "</b><br>" + HtmlEscape(wtx.mapValue["comment"], true) + "<br>";
+
+        if (wtx.IsCoinBase())
+            strHTML += string() + "<br>" + _("Generated coins must wait 120 blocks before they can be spent.  When you generated this block, it was broadcast to the network to be added to the block chain.  If it fails to get into the chain, it will change to \"not accepted\" and not be spendable.  This may occasionally happen if another node generates a block within a few seconds of yours.") + "<br>";
+
+
+        //
+        // Debug view
+        //
+        if (fDebug)
+        {
+            strHTML += "<hr><br>debug print<br><br>";
+            BOOST_FOREACH(const CTxIn& txin, wtx.vin)
+                if (txin.IsMine())
+                    strHTML += "<b>Debit:</b> " + FormatMoney(-txin.GetDebit()) + "<br>";
+            BOOST_FOREACH(const CTxOut& txout, wtx.vout)
+                if (txout.IsMine())
+                    strHTML += "<b>Credit:</b> " + FormatMoney(txout.GetCredit()) + "<br>";
+
+            strHTML += "<br><b>Transaction:</b><br>";
+            strHTML += HtmlEscape(wtx.ToString(), true);
+
+            strHTML += "<br><b>Inputs:</b><br>";
+            CRITICAL_BLOCK(cs_mapWallet)
+            {
+                BOOST_FOREACH(const CTxIn& txin, wtx.vin)
+                {
+                    COutPoint prevout = txin.prevout;
+                    map<uint256, CWalletTx>::iterator mi = mapWallet.find(prevout.hash);
+                    if (mi != mapWallet.end())
+                    {
+                        const CWalletTx& prev = (*mi).second;
+                        if (prevout.n < prev.vout.size())
+                        {
+                            strHTML += HtmlEscape(prev.ToString(), true);
+                            strHTML += " &nbsp;&nbsp; " + FormatTxStatus(prev) + ", ";
+                            strHTML = strHTML + "IsMine=" + (prev.vout[prevout.n].IsMine() ? "true" : "false") + "<br>";
+                        }
+                    }
+                }
+            }
+        }
+
+
+
+        strHTML += "</font></html>";
+    }
+    return strHTML;
+}
diff --git a/gui/src/transactiondescdialog.cpp b/gui/src/transactiondescdialog.cpp
new file mode 100644
index 0000000000..3bd4808cb6
--- /dev/null
+++ b/gui/src/transactiondescdialog.cpp
@@ -0,0 +1,20 @@
+#include "transactiondescdialog.h"
+#include "ui_transactiondescdialog.h"
+
+#include "transactiontablemodel.h"
+
+#include <QModelIndex>
+
+TransactionDescDialog::TransactionDescDialog(const QModelIndex &idx, QWidget *parent) :
+    QDialog(parent),
+    ui(new Ui::TransactionDescDialog)
+{
+    ui->setupUi(this);
+    QString desc = idx.data(TransactionTableModel::LongDescriptionRole).toString();
+    ui->detailText->setHtml(desc);
+}
+
+TransactionDescDialog::~TransactionDescDialog()
+{
+    delete ui;
+}
diff --git a/gui/src/transactiontablemodel.cpp b/gui/src/transactiontablemodel.cpp
index f99784794c..8fe1839930 100644
--- a/gui/src/transactiontablemodel.cpp
+++ b/gui/src/transactiontablemodel.cpp
@@ -3,6 +3,7 @@
 #include "transactionrecord.h"
 #include "guiconstants.h"
 #include "main.h"
+#include "transactiondesc.h"
 
 #include <QLocale>
 #include <QDebug>
@@ -131,14 +132,10 @@ struct TransactionTablePriv
                 }
                 else if(inWallet && inModel)
                 {
-                    /* Updated */
-
+                    /* Updated -- nothing to do, status update will take care of this */
                 }
             }
         }
-        /* TODO: invalidate status for all transactions
-           Use counter. Emit dataChanged for column.
-         */
     }
 
     int size()
@@ -176,6 +173,19 @@ struct TransactionTablePriv
         }
     }
 
+    QString describe(TransactionRecord *rec)
+    {
+        CRITICAL_BLOCK(cs_mapWallet)
+        {
+            std::map<uint256, CWalletTx>::iterator mi = mapWallet.find(rec->hash);
+            if(mi != mapWallet.end())
+            {
+                return QString::fromStdString(TransactionDesc::toHTML(mi->second));
+            }
+        }
+        return QString("");
+    }
+
 };
 
 /* Credit and Debit columns are right-aligned as they contain numbers */
@@ -458,6 +468,10 @@ QVariant TransactionTableModel::data(const QModelIndex &index, int role) const
             return TransactionTableModel::Other;
         }
     }
+    else if (role == LongDescriptionRole)
+    {
+        return priv->describe(rec);
+    }
     return QVariant();
 }