From b85a292ce06475d560bfa1195b63a8bfe211f22d Mon Sep 17 00:00:00 2001
From: Timothy Pearson <kb9vqf@pearsoncomputing.net>
Date: Wed, 11 Jul 2012 14:15:27 -0500
Subject: Add 0.2.7 release of qwtplot3d for future TQt3 conversion and use

---
 lib/tqwtplot3d/include/qwt3d_io.h | 141 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 141 insertions(+)
 create mode 100644 lib/tqwtplot3d/include/qwt3d_io.h

(limited to 'lib/tqwtplot3d/include/qwt3d_io.h')

diff --git a/lib/tqwtplot3d/include/qwt3d_io.h b/lib/tqwtplot3d/include/qwt3d_io.h
new file mode 100644
index 0000000..aa2cd1f
--- /dev/null
+++ b/lib/tqwtplot3d/include/qwt3d_io.h
@@ -0,0 +1,141 @@
+#ifndef __qwt3d_io_2003_07_04_23_27__
+#define __qwt3d_io_2003_07_04_23_27__
+
+#include <vector>
+#include <algorithm>
+
+#include <qstring.h>
+#include <qstringlist.h>
+#include "qwt3d_global.h"
+
+namespace Qwt3D
+{
+
+class Plot3D;
+/** 
+IO provides a generic interface for standard and user written I/O handlers. 
+It also provides functionality for the registering of such handlers in the
+framework.\n 
+The interface mimics roughly Qt's QImageIO functions for defining  
+image input/output functions. 
+*/
+class QWT3D_EXPORT IO
+{
+
+public:
+  /*! 
+    The function type that can be processed by the define... members.
+    An extension is the IO::Functor.
+  */
+  typedef bool (*Function)(Plot3D*, QString const& fname);
+  
+  
+  /*! 
+    This class gives more flexibility in implementing 
+    userdefined IO handlers than the simple IO::Function type. 
+  */
+  class Functor
+  {
+  public:
+    virtual ~Functor() {}
+    /*! Must clone the content of *this for an object of a derived class with 
+    \c new and return the pointer. Like operator() the predefined Functors 
+    hide this function from the user, still allowing IO access 
+    (friend declaration)
+    */
+    virtual Functor* clone() const = 0;
+    /*! The workhorse of the user-defined implementation. Eventually, the 
+    framework will call this operator.
+    */
+    virtual bool operator()(Plot3D* plot, QString const& fname) = 0;
+  };
+  
+  static bool defineInputHandler( QString const& format, Function func);
+  static bool defineOutputHandler( QString const& format, Function func);
+  static bool defineInputHandler( QString const& format, Functor const& func);
+  static bool defineOutputHandler( QString const& format, Functor const& func);
+  static bool save(Plot3D*, QString const& fname, QString const& format);
+  static bool load(Plot3D*, QString const& fname, QString const& format);
+  static QStringList inputFormatList();
+  static QStringList outputFormatList();
+  static Functor* outputHandler(QString const& format);
+  static Functor* inputHandler(QString const& format);
+  
+private:  
+  IO(){}
+  
+  //! Lightweight Functor encapsulating an IO::Function
+  class Wrapper : public Functor
+  {
+  public:
+    //! Performs actual input
+    Functor* clone() const { return new Wrapper(*this); }
+    //! Creates a Wrapper object from a function pointer
+    explicit Wrapper(Function h) : hdl(h) {}
+    //! Returns a pointer to the wrapped function
+    bool operator()(Plot3D* plot, QString const& fname)
+    {
+      return (hdl) ? (*hdl)(plot, fname) : false;
+    }
+  private: 
+    Function hdl;
+  };  
+  
+  struct Entry
+  {
+    Entry();    
+    ~Entry();
+
+    Entry(Entry const& e);
+    void operator=(Entry const& e);
+    
+    Entry(QString const& s, Functor const& f);
+    Entry(QString const& s, Function f);
+    
+    QString fmt;
+    Functor* iofunc;
+  };
+
+  struct FormatCompare
+  {
+    explicit FormatCompare(Entry const& e);
+    bool operator() (Entry const& e);
+
+    Entry e_;
+  };
+ 
+  struct FormatCompare2
+  {
+    explicit FormatCompare2(QString s);
+    bool operator() (Entry const& e);
+
+    QString s_;
+  };
+    
+  typedef std::vector<Entry> Container;
+  typedef Container::iterator IT;
+
+  static bool add_unique(Container& l, Entry const& e);
+  static IT find(Container& l, QString const& fmt);
+  static Container& rlist();
+  static Container& wlist();
+  static void setupHandler();
+};
+
+//! Provides Qt's Pixmap output facilities
+class QWT3D_EXPORT PixmapWriter : public IO::Functor
+{
+friend class IO;
+public:  
+  PixmapWriter() : quality_(-1) {}
+  void setQuality(int val);
+private:
+  IO::Functor* clone() const {return new PixmapWriter(*this);}
+  bool operator()(Plot3D* plot, QString const& fname);
+  QString fmt_;
+  int quality_;
+};
+
+} //ns
+
+#endif
-- 
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