Diff: Settings/Variable.cpp

Revision:

2:8d8295a51f68

Child:

3:bb58d4e78e68

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Settings/Variable.cpp	Thu Oct 01 09:40:30 2015 +0200
@@ -0,0 +1,115 @@
+#include <sstream>
+#include <limits>
+#include "Variable.h"
+
+Variable::ValueDescription Variable::none[] = {{0,0}};
+
+int32_t Variable::nonSetValue()
+{
+    return std::numeric_limits<int32_t>::min();
+}
+
+Variable::Variable()
+    : name_("")
+    , description_("")
+    , pValueDescriptions_(none)
+    , value_(nonSetValue())
+{
+}
+
+bool Variable::endGuard() const
+{
+    return value_ == nonSetValue();
+}
+
+Variable::Variable(const char* name, const char* description, int32_t value, const ValueDescription* const pValueDescriptions)
+    : name_(name)
+    , description_(description)
+    , pValueDescriptions_(pValueDescriptions)
+    , value_(value)
+{
+}
+
+std::string Variable::name() const
+{
+    return name_;
+}
+
+std::string Variable::help() const
+{
+    std::ostringstream temp;
+
+    temp << description_ << "\r\n";
+
+    for (const ValueDescription* p = pValueDescriptions_; !p->isEnd(); ++p)
+    {
+        if (p->isEndRange())
+        {
+            continue;
+        }
+
+        temp << "    ";
+
+        if ((p+1)->isEndRange())
+        {
+            temp << p->value << "..." << (p+1)->value << " " << p->description;
+        }
+        else
+        {
+            temp << p->value << ": " << p->description << " ";
+        }
+
+        temp << "\r\n";
+    }
+
+    std::string s = temp.str();
+    return s;
+}
+
+std::string Variable::describe(int32_t value) const
+{
+    for (const ValueDescription* p = pValueDescriptions_; !p->isEnd(); ++p)
+    {
+        if (p->value > value || p->isEndRange())
+        {
+            continue;
+        }
+
+        if ((p+1)->isEndRange())
+        {
+            if ((p->value <= value) && (value <= (p+1)->value))
+            {
+                std::ostringstream temp;
+                temp << value << " " << p->description;
+                return temp.str();
+            }
+        } else
+        if (p->value == value)
+        {
+            std::ostringstream temp;
+            temp << value << " - " << p->description;
+            return temp.str();
+        }
+    }
+    return "";
+}
+
+bool Variable::set(int32_t value)
+{
+    if (describe(value).size() == 0)
+    {
+        return false;
+    }
+    value_ = value;
+    return true;
+}
+
+int32_t Variable::get() const
+{
+    return value_;
+}
+
+std::string Variable::describe() const
+{
+    return  describe(get());
+}