Debugger[CDB]: Prompt to set up the Symbol server.

Prompt to set up the public symbol server unless
it is already configured or the environment
variable exists. Change the dialog to be
based on the PathChooser to be able to suggest
a non-existent directory.
Acked-by: Alessandro Portale <alessandro.portale@nokia.com>

src/plugins/debugger/cdb/cdboptions.cpp

@@ -50,6 +50,11 @@ CdbOptions::CdbOptions() :
 {
 }
 
+QString CdbOptions::settingsGroup()
+{
+    return QLatin1String(settingsGroupC);
+}
+
 void CdbOptions::clear()
 {
     enabled = false;
@@ -99,5 +104,37 @@ unsigned CdbOptions::compare(const CdbOptions &rhs) const
     return rc;
 }
 
+static const char symbolServerPrefixC[] = "symsrv*symsrv.dll*";
+static const char symbolServerPostfixC[] = "*http://msdl.microsoft.com/download/symbols";
+
+QString CdbOptions::symbolServerPath(const QString &cacheDir)
+{
+    QString s = QLatin1String(symbolServerPrefixC);
+    s +=  QDir::toNativeSeparators(cacheDir);
+    s += QLatin1String(symbolServerPostfixC);
+    return s;
+}
+
+bool CdbOptions::isSymbolServerPath(const QString &path, QString *cacheDir /*  = 0 */)
+{
+    // Split apart symbol server post/prefixes
+    if (!path.startsWith(QLatin1String(symbolServerPrefixC)) || !path.endsWith(QLatin1String(symbolServerPostfixC)))
+        return false;
+    if (cacheDir) {
+        const unsigned prefixLength = qstrlen(symbolServerPrefixC);
+        *cacheDir = path.mid(prefixLength, path.size() - prefixLength - qstrlen(symbolServerPostfixC));
+    }
+    return true;
+}
+
+int CdbOptions::indexOfSymbolServerPath(const QStringList &paths, QString *cacheDir /*  = 0 */)
+{
+    const int count = paths.size();
+    for (int i = 0; i < count; i++)
+        if (CdbOptions::isSymbolServerPath(paths.at(i), cacheDir))
+            return i;
+    return -1;
+}
+
 } // namespace Internal
 } // namespace Debugger