1 files changed, 137 insertions, 0 deletions
diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp
new file mode 100644
index 0000000000..eeba74b175
--- /dev/null
+++ b/src/qt/guiutil.cpp
@@ -0,0 +1,137 @@
+#include "guiutil.h"
+#include "bitcoinaddressvalidator.h"
+#include "walletmodel.h"
+#include "bitcoinunits.h"
+
+#include "headers.h"
+
+#include <QString>
+#include <QDateTime>
+#include <QDoubleValidator>
+#include <QFont>
+#include <QLineEdit>
+#include <QUrl>
+#include <QFileDialog>
+#include <QDesktopServices>
+
+QString GUIUtil::dateTimeStr(qint64 nTime)
+{
+    return dateTimeStr(QDateTime::fromTime_t((qint32)nTime));
+}
+
+QString GUIUtil::dateTimeStr(const QDateTime &date)
+{
+    return date.date().toString(Qt::SystemLocaleShortDate) + QString(" ") + date.toString("hh:mm");
+}
+
+QFont GUIUtil::bitcoinAddressFont()
+{
+    QFont font("Monospace");
+    font.setStyleHint(QFont::TypeWriter);
+    return font;
+}
+
+void GUIUtil::setupAddressWidget(QLineEdit *widget, QWidget *parent)
+{
+    widget->setMaxLength(BitcoinAddressValidator::MaxAddressLength);
+    widget->setValidator(new BitcoinAddressValidator(parent));
+    widget->setFont(bitcoinAddressFont());
+}
+
+void GUIUtil::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 GUIUtil::parseBitcoinURI(const QUrl *uri, SendCoinsRecipient *out)
+{
+    if(uri->scheme() != QString("bitcoin"))
+        return false;
+
+    SendCoinsRecipient rv;
+    rv.address = uri->path();
+    rv.label = uri->queryItemValue("label");
+
+    QString amount = uri->queryItemValue("amount");
+    if(amount.isEmpty())
+    {
+        rv.amount = 0;
+    }
+    else // Amount is non-empty
+    {
+        if(!BitcoinUnits::parse(BitcoinUnits::BTC, amount, &rv.amount))
+        {
+            return false;
+        }
+    }
+    if(out)
+    {
+        *out = rv;
+    }
+    return true;
+}
+
+bool GUIUtil::parseBitcoinURI(QString uri, SendCoinsRecipient *out)
+{
+    // Convert bitcoin:// to bitcoin:
+    //
+    //    Cannot handle this later, because bitcoin:// will cause Qt to see the part after // as host,
+    //    which will lower-case it (and thus invalidate the address).
+    if(uri.startsWith("bitcoin://"))
+    {
+        uri.replace(0, 10, "bitcoin:");
+    }
+    QUrl uriInstance(uri);
+    return parseBitcoinURI(&uriInstance, out);
+}
+
+QString GUIUtil::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;
+}
+