0024665: A sample for advanced function mechanism

PRO file is added + a description of how to generate the Visual Studio projects and compile.
In addition, the sample folder is renamed to FuncDemo.

Adding 64 bit configuration to VC projects

samples/qt/FuncDemo/src/FThread.h

@@ -0,0 +1,41 @@
+#ifndef _FTHREAD_H_
+#define _FTHREAD_H_
+
+#include <QThread>
+
+#include <TFunction_Logbook.hxx>
+#include <TFunction_Iterator.hxx>
+#include <TFunction_Driver.hxx>
+
+class GraphWidget; // shows graphically execution of functions
+
+class FThread : public QThread
+{
+
+    Q_OBJECT
+
+public:
+
+    FThread(QObject* parent = 0);
+    ~FThread();
+
+    void setIterator(const TFunction_Iterator& ); // to iterate and call functions
+    void setLogbook(const Handle(TFunction_Logbook)& );         // to set logbook with modifications
+    void setGraph(GraphWidget* );                 // to change color of a graph circle
+    void setThreadIndex(const int );              // to set the index of the thread
+
+protected:
+
+    void run();
+    virtual TDF_Label getFreeFunction();          // Returns any free (not executed yet) function
+
+private:
+
+    TFunction_Iterator itr;
+    Handle(TFunction_Logbook) log;
+    int                thread_index;
+
+    GraphWidget*       graph;
+};
+
+#endif // _FTHREAD_H_