Added global utility functions.

[evaf] / src / libs / Common / util.cpp

diff --git a/src/libs/Common/util.cpp b/src/libs/Common/util.cpp
new file mode 100644 (file)
index 0000000..ccabdab
--- /dev/null
+++ b/src/libs/Common/util.cpp
@@ -0,0 +1,81 @@
+/**
+ * @file Common/util.cpp
+ * @brief Global utility functions for eVaf
+ * @author Enar Vaikene
+ *
+ * Copyright (c) 2011 Enar Vaikene
+ *
+ * This file is part of the eVaf C++ cross-platform application development framework.
+ *
+ * This file can be used under the terms of the GNU General Public License
+ * version 3.0 as published by the Free Software Foundation and appearing in
+ * the file LICENSE included in the packaging of this file. Please review the
+ * the following information to ensure the GNU General Public License version
+ * 3.0 requirements will be met: http://www.gnu.org/copyleft/gpl.html.
+ *
+ * Alternatively, this file may be used in accordance with the Commercial License
+ * Agreement provided with the Software.
+ */
+
+#include "util.h"
+
+
+//-------------------------------------------------------------------
+
+QVariant eVaf::Common::toVariant(QString const & value, QVariant const & defaultValue)
+{
+    // If the default value is not valid, return the string value without conversions
+    if (!defaultValue.isValid())
+        return QVariant(value);
+
+    // Convert to the expected type
+    switch (defaultValue.type()) {
+        case QVariant::UInt: {
+            bool ok;
+            uint v = value.toUInt(&ok, 0);
+            if (ok)
+                return QVariant(v);
+            else
+                return defaultValue;
+            break;
+        }
+        case QVariant::Int: {
+            bool ok;
+            int v = value.toInt(&ok, 0);
+            if (ok)
+                return QVariant(v);
+            else
+                return defaultValue;
+            break;
+        }
+        case QVariant::Double: {
+            bool ok;
+            double v = value.toDouble(&ok);
+            if (ok)
+                return QVariant(v);
+            else
+                return defaultValue;
+            break;
+        }
+        case QVariant::Bool: {
+            bool ok;
+            uint v = value.toUInt(&ok, 0);
+            if (eVaf::Common::isTrue(value))
+                return QVariant(true);
+            else if (eVaf::Common::isFalse(value))
+                return QVariant(false);
+            else
+                return QVariant(v);
+            break;
+        }
+        case QVariant::Char: {
+            if (value.size() > 0)
+                return QVariant(value.at(0));
+            else
+                return defaultValue;
+            break;
+        }
+        default:
+            return QVariant(value);
+    }
+}