/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkPVFileEntry.h
  Language:  C++
  Date:      $Date$
  Version:   $Revision$

Copyright (c) 2000-2001 Kitware Inc. 469 Clifton Corporate Parkway,
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 * Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.

 * Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

 * Neither the name of Kitware nor the names of any contributors may be used
   to endorse or promote products derived from this software without specific 
   prior written permission.

 * Modified source versions must be plainly marked as such, and must not be
   misrepresented as being the original software.

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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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=========================================================================*/
// .NAME vtkPVFileEntry -
// .SECTION Description

#ifndef __vtkPVFileEntry_h
#define __vtkPVFileEntry_h

#include "vtkPVObjectWidget.h"

class vtkKWLabel;
class vtkKWPushButton;
class vtkKWEntry;
class vtkPVSource;
class vtkKWScale;
class vtkKWFrame;

//BTX
template<class KeyType,class DataType> class vtkArrayMap;
//ETX

class VTK_EXPORT vtkPVFileEntry : public vtkPVObjectWidget
{
public:
  static vtkPVFileEntry* New();
  vtkTypeRevisionMacro(vtkPVFileEntry, vtkPVObjectWidget);
  void PrintSelf(ostream& os, vtkIndent indent);

  // Description:
  // The label can be set before or after create is called.
  void SetLabel(const char* label);
  const char* GetLabel();

  virtual void Create(vtkKWApplication *pvApp);
  
  // Description:
  // This method allows scripts to modify the widgets value.
  virtual void SetValue(const char* fileName);
  const char* GetValue();

  // Description:
  // Called when the browse button is pressed.
  void BrowseCallback();

  // Description:
  // This class redefines SetBalloonHelpString since it
  // has to forward the call to a widget it contains.
  virtual void SetBalloonHelpString(const char *str);

  // Description:
  // The extension used in the file dialog
  vtkSetStringMacro(Extension);
  vtkGetStringMacro(Extension);

//BTX
  // Description:
  // Creates and returns a copy of this widget. It will create
  // a new instance of the same type as the current object
  // using NewInstance() and then copy some necessary state 
  // parameters.
  vtkPVFileEntry* ClonePrototype(vtkPVSource* pvSource,
                                 vtkArrayMap<vtkPVWidget*, vtkPVWidget*>* map);
//ETX

  // Description:
  // Called when accept button is pushed.  
  // Sets objects variable to the widgets value.
  // Side effect is to turn modified flag off.
  virtual void AcceptInternal(const char* sourceTclName);
  
  // Description:
  // Called when the reset button is pushed.
  // Sets widget's value to the object-variable's value.
  // Side effect is to turn the modified flag off.
  virtual void ResetInternal(const char* sourceTclName);
  
  // Description:
  // This serves a dual purpose.  For tracing and for saving state.
  virtual void Trace(ofstream *file);

  // Description:
  // This callback is called when entry changes.
  void EntryChangedCallback();

  // Description:
  // This callback is called when timestep changes.
  void TimestepChangedCallback();

  // Description:
  // adds a script to the menu of the animation interface.
  virtual void AddAnimationScriptsToMenu(vtkKWMenu *menu, 
                                         vtkPVAnimationInterfaceEntry *ai);

  // Description:
  // This method gets called when the user selects this widget to animate.
  // It sets up the script and animation parameters.
  void AnimationMenuCallback(vtkPVAnimationInterfaceEntry *ai);


  // Description:
  // Set the current time step.
  void SetTimeStep(int ts);

  // Description:
  void SaveInBatchScriptForPart(ofstream* file, const char* sourceTclName);

  // Description:
  // Get the range of files.
  vtkGetVector2Macro(Range, int);

protected:
  vtkPVFileEntry();
  ~vtkPVFileEntry();
  

  vtkKWLabel *LabelWidget;
  vtkKWPushButton *BrowseButton;
  vtkKWEntry *Entry;

  char* Extension;
  int InSetValue;

  // Timestep scale
  vtkKWFrame *TimestepFrame;
  vtkKWScale *Timestep;
  int TimeStep;

  vtkSetStringMacro(Format);
  vtkSetStringMacro(Prefix);
  vtkSetStringMacro(Path);
  vtkSetStringMacro(Ext);
  vtkSetVector2Macro(Range, int);

  char* Prefix;
  char* Format;
  char* Path;
  char* Ext;
  int FileNameLength;
  int Range[2];

  vtkPVFileEntry(const vtkPVFileEntry&); // Not implemented
  void operator=(const vtkPVFileEntry&); // Not implemented

  //BTX
  virtual void CopyProperties(vtkPVWidget* clone, vtkPVSource* pvSource,
    vtkArrayMap<vtkPVWidget*, vtkPVWidget*>* map);
  //ETX

  int ReadXMLAttributes(vtkPVXMLElement* element,
    vtkPVXMLPackageParser* parser);
};

#endif
