Initial commit.

src/qt/guiutil.cpp

@@ -0,0 +1,463 @@
+#include "guiutil.h"
+#include "bitcoinaddressvalidator.h"
+#include "walletmodel.h"
+#include "bitcoinunits.h"
+#include "util.h"
+#include "init.h"
+#include "base58.h"
+
+#include <QString>
+#include <QDateTime>
+#include <QDoubleValidator>
+#include <QFont>
+#include <QLineEdit>
+#include <QUrl>
+#include <QTextDocument> // For Qt::escape
+#include <QAbstractItemView>
+#include <QApplication>
+#include <QClipboard>
+#include <QFileDialog>
+#include <QDesktopServices>
+#include <QThread>
+
+#include <boost/filesystem.hpp>
+#include <boost/filesystem/fstream.hpp>
+
+#ifdef WIN32
+#ifdef _WIN32_WINNT
+#undef _WIN32_WINNT
+#endif
+#define _WIN32_WINNT 0x0501
+#ifdef _WIN32_IE
+#undef _WIN32_IE
+#endif
+#define _WIN32_IE 0x0501
+#define WIN32_LEAN_AND_MEAN 1
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+#include "shlwapi.h"
+#include "shlobj.h"
+#include "shellapi.h"
+#endif
+
+namespace GUIUtil {
+
+QString dateTimeStr(const QDateTime &date)
+{
+    return date.date().toString(Qt::SystemLocaleShortDate) + QString(" ") + date.toString("hh:mm");
+}
+
+QString dateTimeStr(qint64 nTime)
+{
+    return dateTimeStr(QDateTime::fromTime_t((qint32)nTime));
+}
+
+QFont bitcoinAddressFont()
+{
+    QFont font("Monospace");
+    font.setStyleHint(QFont::TypeWriter);
+    return font;
+}
+
+void setupAddressWidget(QLineEdit *widget, QWidget *parent)
+{
+    widget->setMaxLength(BitcoinAddressValidator::MaxAddressLength);
+    widget->setValidator(new BitcoinAddressValidator(parent));
+    widget->setFont(bitcoinAddressFont());
+}
+
+void setupAmountWidget(QLineEdit *widget, QWidget *parent)
+{
+    QDoubleValidator *amountValidator = new QDoubleValidator(parent);
+    amountValidator->setDecimals(8);
+    amountValidator->setBottom(0.0);
+    widget->setValidator(amountValidator);
+    widget->setAlignment(Qt::AlignRight|Qt::AlignVCenter);
+}
+
+bool parseBitcoinURI(const QUrl &uri, SendCoinsRecipient *out)
+{
+    if(uri.scheme() != QString("casinocoin"))
+        return false;
+
+    // check if the address is valid
+    CBitcoinAddress addressFromUri(uri.path().toStdString());
+    if (!addressFromUri.IsValid())
+        return false;
+
+    SendCoinsRecipient rv;
+    rv.address = uri.path();
+    rv.amount = 0;
+    QList<QPair<QString, QString> > items = uri.queryItems();
+    for (QList<QPair<QString, QString> >::iterator i = items.begin(); i != items.end(); i++)
+    {
+        bool fShouldReturnFalse = false;
+        if (i->first.startsWith("req-"))
+        {
+            i->first.remove(0, 4);
+            fShouldReturnFalse = true;
+        }
+
+        if (i->first == "label")
+        {
+            rv.label = i->second;
+            fShouldReturnFalse = false;
+        }
+        else if (i->first == "amount")
+        {
+            if(!i->second.isEmpty())
+            {
+                if(!BitcoinUnits::parse(BitcoinUnits::BTC, i->second, &rv.amount))
+                {
+                    return false;
+                }
+            }
+            fShouldReturnFalse = false;
+        }
+
+        if (fShouldReturnFalse)
+            return false;
+    }
+    if(out)
+    {
+        *out = rv;
+    }
+    return true;
+}
+
+bool parseBitcoinURI(QString uri, SendCoinsRecipient *out)
+{
+    // Convert casinocoin:// to casinocoin:
+    //
+    //    Cannot handle this later, because casinocoin:// will cause Qt to see the part after // as host,
+    //    which will lowercase it (and thus invalidate the address).
+    if(uri.startsWith("casinocoin://"))
+    {
+        uri.replace(0, 11, "casinocoin:");
+    }
+    QUrl uriInstance(uri);
+    return parseBitcoinURI(uriInstance, out);
+}
+
+QString HtmlEscape(const QString& str, bool fMultiLine)
+{
+    QString escaped = Qt::escape(str);
+    if(fMultiLine)
+    {
+        escaped = escaped.replace("\n", "<br>\n");
+    }
+    return escaped;
+}
+
+QString HtmlEscape(const std::string& str, bool fMultiLine)
+{
+    return HtmlEscape(QString::fromStdString(str), fMultiLine);
+}
+
+void copyEntryData(QAbstractItemView *view, int column, int role)
+{
+    if(!view || !view->selectionModel())
+        return;
+    QModelIndexList selection = view->selectionModel()->selectedRows(column);
+
+    if(!selection.isEmpty())
+    {
+        // Copy first item
+        QApplication::clipboard()->setText(selection.at(0).data(role).toString());
+    }
+}
+
+QString getSaveFileName(QWidget *parent, const QString &caption,
+                                 const QString &dir,
+                                 const QString &filter,
+                                 QString *selectedSuffixOut)
+{
+    QString selectedFilter;
+    QString myDir;
+    if(dir.isEmpty()) // Default to user documents location
+    {
+        myDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
+    }
+    else
+    {
+        myDir = dir;
+    }
+    QString result = QFileDialog::getSaveFileName(parent, caption, myDir, filter, &selectedFilter);
+
+    /* Extract first suffix from filter pattern "Description (*.foo)" or "Description (*.foo *.bar ...) */
+    QRegExp filter_re(".* \\(\\*\\.(.*)[ \\)]");
+    QString selectedSuffix;
+    if(filter_re.exactMatch(selectedFilter))
+    {
+        selectedSuffix = filter_re.cap(1);
+    }
+
+    /* Add suffix if needed */
+    QFileInfo info(result);
+    if(!result.isEmpty())
+    {
+        if(info.suffix().isEmpty() && !selectedSuffix.isEmpty())
+        {
+            /* No suffix specified, add selected suffix */
+            if(!result.endsWith("."))
+                result.append(".");
+            result.append(selectedSuffix);
+        }
+    }
+
+    /* Return selected suffix if asked to */
+    if(selectedSuffixOut)
+    {
+        *selectedSuffixOut = selectedSuffix;
+    }
+    return result;
+}
+
+Qt::ConnectionType blockingGUIThreadConnection()
+{
+    if(QThread::currentThread() != QCoreApplication::instance()->thread())
+    {
+        return Qt::BlockingQueuedConnection;
+    }
+    else
+    {
+        return Qt::DirectConnection;
+    }
+}
+
+bool checkPoint(const QPoint &p, const QWidget *w)
+{
+    QWidget *atW = qApp->widgetAt(w->mapToGlobal(p));
+    if (!atW) return false;
+    return atW->topLevelWidget() == w;
+}
+
+bool isObscured(QWidget *w)
+{
+    return !(checkPoint(QPoint(0, 0), w)
+        && checkPoint(QPoint(w->width() - 1, 0), w)
+        && checkPoint(QPoint(0, w->height() - 1), w)
+        && checkPoint(QPoint(w->width() - 1, w->height() - 1), w)
+        && checkPoint(QPoint(w->width() / 2, w->height() / 2), w));
+}
+
+void openDebugLogfile()
+{
+    boost::filesystem::path pathDebug = GetDataDir() / "debug.log";
+
+    /* Open debug.log with the associated application */
+    if (boost::filesystem::exists(pathDebug))
+        QDesktopServices::openUrl(QUrl::fromLocalFile(QString::fromStdString(pathDebug.string())));
+}
+
+ToolTipToRichTextFilter::ToolTipToRichTextFilter(int size_threshold, QObject *parent) :
+    QObject(parent), size_threshold(size_threshold)
+{
+
+}
+
+bool ToolTipToRichTextFilter::eventFilter(QObject *obj, QEvent *evt)
+{
+    if(evt->type() == QEvent::ToolTipChange)
+    {
+        QWidget *widget = static_cast<QWidget*>(obj);
+        QString tooltip = widget->toolTip();
+        if(tooltip.size() > size_threshold && !tooltip.startsWith("<qt/>") && !Qt::mightBeRichText(tooltip))
+        {
+            // Prefix <qt/> to make sure Qt detects this as rich text
+            // Escape the current message as HTML and replace \n by <br>
+            tooltip = "<qt/>" + HtmlEscape(tooltip, true);
+            widget->setToolTip(tooltip);
+            return true;
+        }
+    }
+    return QObject::eventFilter(obj, evt);
+}
+
+#ifdef WIN32
+boost::filesystem::path static StartupShortcutPath()
+{
+    return GetSpecialFolderPath(CSIDL_STARTUP) / "CasinoCoin.lnk";
+}
+
+bool GetStartOnSystemStartup()
+{
+    // check for CasinoCoin.lnk
+    return boost::filesystem::exists(StartupShortcutPath());
+}
+
+bool SetStartOnSystemStartup(bool fAutoStart)
+{
+    // If the shortcut exists already, remove it for updating
+    boost::filesystem::remove(StartupShortcutPath());
+
+    if (fAutoStart)
+    {
+        CoInitialize(NULL);
+
+        // Get a pointer to the IShellLink interface.
+        IShellLink* psl = NULL;
+        HRESULT hres = CoCreateInstance(CLSID_ShellLink, NULL,
+                                CLSCTX_INPROC_SERVER, IID_IShellLink,
+                                reinterpret_cast<void**>(&psl));
+
+        if (SUCCEEDED(hres))
+        {
+            // Get the current executable path
+            TCHAR pszExePath[MAX_PATH];
+            GetModuleFileName(NULL, pszExePath, sizeof(pszExePath));
+
+            TCHAR pszArgs[5] = TEXT("-min");
+
+            // Set the path to the shortcut target
+            psl->SetPath(pszExePath);
+            PathRemoveFileSpec(pszExePath);
+            psl->SetWorkingDirectory(pszExePath);
+            psl->SetShowCmd(SW_SHOWMINNOACTIVE);
+            psl->SetArguments(pszArgs);
+
+            // Query IShellLink for the IPersistFile interface for
+            // saving the shortcut in persistent storage.
+            IPersistFile* ppf = NULL;
+            hres = psl->QueryInterface(IID_IPersistFile,
+                                       reinterpret_cast<void**>(&ppf));
+            if (SUCCEEDED(hres))
+            {
+                WCHAR pwsz[MAX_PATH];
+                // Ensure that the string is ANSI.
+                MultiByteToWideChar(CP_ACP, 0, StartupShortcutPath().string().c_str(), -1, pwsz, MAX_PATH);
+                // Save the link by calling IPersistFile::Save.
+                hres = ppf->Save(pwsz, TRUE);
+                ppf->Release();
+                psl->Release();
+                CoUninitialize();
+                return true;
+            }
+            psl->Release();
+        }
+        CoUninitialize();
+        return false;
+    }
+    return true;
+}
+
+#elif defined(LINUX)
+
+// Follow the Desktop Application Autostart Spec:
+//  http://standards.freedesktop.org/autostart-spec/autostart-spec-latest.html
+
+boost::filesystem::path static GetAutostartDir()
+{
+    namespace fs = boost::filesystem;
+
+    char* pszConfigHome = getenv("XDG_CONFIG_HOME");
+    if (pszConfigHome) return fs::path(pszConfigHome) / "autostart";
+    char* pszHome = getenv("HOME");
+    if (pszHome) return fs::path(pszHome) / ".config" / "autostart";
+    return fs::path();
+}
+
+boost::filesystem::path static GetAutostartFilePath()
+{
+    return GetAutostartDir() / "casinocoin.desktop";
+}
+
+bool GetStartOnSystemStartup()
+{
+    boost::filesystem::ifstream optionFile(GetAutostartFilePath());
+    if (!optionFile.good())
+        return false;
+    // Scan through file for "Hidden=true":
+    std::string line;
+    while (!optionFile.eof())
+    {
+        getline(optionFile, line);
+        if (line.find("Hidden") != std::string::npos &&
+            line.find("true") != std::string::npos)
+            return false;
+    }
+    optionFile.close();
+
+    return true;
+}
+
+bool SetStartOnSystemStartup(bool fAutoStart)
+{
+    if (!fAutoStart)
+        boost::filesystem::remove(GetAutostartFilePath());
+    else
+    {
+        char pszExePath[MAX_PATH+1];
+        memset(pszExePath, 0, sizeof(pszExePath));
+        if (readlink("/proc/self/exe", pszExePath, sizeof(pszExePath)-1) == -1)
+            return false;
+
+        boost::filesystem::create_directories(GetAutostartDir());
+
+        boost::filesystem::ofstream optionFile(GetAutostartFilePath(), std::ios_base::out|std::ios_base::trunc);
+        if (!optionFile.good())
+            return false;
+        // Write a casinocoin.desktop file to the autostart directory:
+        optionFile << "[Desktop Entry]\n";
+        optionFile << "Type=Application\n";
+        optionFile << "Name=CasinoCoin\n";
+        optionFile << "Exec=" << pszExePath << " -min\n";
+        optionFile << "Terminal=false\n";
+        optionFile << "Hidden=false\n";
+        optionFile.close();
+    }
+    return true;
+}
+#else
+
+// TODO: OSX startup stuff; see:
+// https://developer.apple.com/library/mac/#documentation/MacOSX/Conceptual/BPSystemStartup/Articles/CustomLogin.html
+
+bool GetStartOnSystemStartup() { return false; }
+bool SetStartOnSystemStartup(bool fAutoStart) { return false; }
+
+#endif
+
+HelpMessageBox::HelpMessageBox(QWidget *parent) :
+    QMessageBox(parent)
+{
+    header = tr("CasinoCoin-Qt") + " " + tr("version") + " " +
+        QString::fromStdString(FormatFullVersion()) + "\n\n" +
+        tr("Usage:") + "\n" +
+        "  casinocoin-qt [" + tr("command-line options") + "]                     " + "\n";
+
+    coreOptions = QString::fromStdString(HelpMessage());
+
+    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";
+
+    setWindowTitle(tr("CasinoCoin-Qt"));
+    setTextFormat(Qt::PlainText);
+    // setMinimumWidth is ignored for QMessageBox so put in nonbreaking 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(stderr, "%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
+}
+
+} // namespace GUIUtil
+