/*
* This file is part of rasdaman community.
*
* Rasdaman community is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with rasdaman community.  If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
/

/**
 *  PURPOSE:
 *
 *  rView thumbnail viewer class. Unlike the regular MDD viewers (e.g.
 *  rviewImage) this is not derived from rviewDisplay because it can
 *  display any number of MDD objects in contrast to regular viewers
 *  which manage exactly one object.
 *
 *	COMMENTS:
 *		None
 */

/**
*	@file rviewThumb.hh
*
*	@ingroup Applications
*/

#ifndef _RVIEW_THUMB_H_
#define _RVIEW_THUMB_H_




#include "rasodmg/ref.hh"
#include "rasodmg/marray.hh"
#include "rasodmg/gmarray.hh"

#include "labelManager.hh"
#include "rviewUtils.hh"
#include "rviewDisplay.hh"
#include "rviewDModes.hh"




class wxPixmap;
class rviewThumb;


// List holding all the pixmap items for one mddObject.
// This chain is 1 item long for 2D data, but can be any length
// for higher dimensions
typedef struct rviewThumbPixList {
  wxPixmap *pixmap;
  int dimproj, projval;
  rviewThumbPixList *next;
} rviewThumbPixList;

// List holding mdd/pixmap items
typedef struct rviewThumbList {
  r_Ref<r_GMarray> mdd;
  rviewBaseType baseType;
  int numPix;
  rviewThumbPixList *pixmaps;
  rviewThumbList *next;
} rviewThumbList;




/*
 *  The canvas displaying the thumbnails
 */
class thumbCanvas: public wxCanvas
{
  public:

  thumbCanvas(rviewThumb *par, int x, int y, int width, int height);
  ~thumbCanvas(void);

  void OnPaint(void);
  void updateDisplay(void);


  protected:

  wxBrush brush;
  rviewThumb *parent;
};



/*
 *  A window containing small versions of images
 */
class rviewThumb: public rviewFrame
{
  public:

  rviewThumb(void);
  ~rviewThumb(void);

  int addMDD(r_Ref<r_GMarray> &newMdd);
  int deleteMDD(r_Ref<r_GMarray> &obsMdd);
  void setLayout(int width, int npl);
  void newThumbWidth(int newWidth);

  void label(void);
  int process(wxObject &obj, wxEvent &evt);
  virtual const char *getFrameName(void) const;
  virtual rviewFrameType getFrameType(void) const;

  void OnSize(int w, int h);
  void OnMenuCommand(int id);

  int userEvent(const user_event &ue);

  // Used by canvas to get data
  wxPixmap *getPixmapNumber(int no, char *caption);
  void getThumbInfo(int &num, int &npl);
  void getGridInfo(int &gx, int &gy);

  // constants
  // Initial dimensions of window
  static const int thumb_width;
  static const int thumb_height;
  // Default width of thumbnail images
  static const int thumb_imgwidth;
  // Default number of thumbnails per line
  static const int thumb_perline;
  // Space between thumbnails
  static const int thumb_space;
  // Borders used in thumbnail window
  static const int thumb_border;
  // Scrolling values
  static const int thumb_scrstep;
  static const int thumb_pgstep;
  // Dimensions of checkboxs
  static const int thumb_chkwidth;
  static const int thumb_chkheight;
  // Minimum / maximum width of thumbnails
  static const int thumb_minwidth;
  static const int thumb_maxwidth;
  // Minimum / maximum number of thumbnails per line
  static const int thumb_mincols;
  static const int thumb_maxcols;
  // Height of control panel at the top
  static const int thumb_cheight;
  // Height of text items
  static const int thumb_twidth;
  static const int thumb_theight;
  // Width of projDim / step widgets
  static const int thumb_prjwidth;


  protected:

  void deletePixmapChain(rviewThumbList *tlst);
  int pixmapsFromMDD(rviewThumbList *tlst);
  wxPixmap *buildThumbnail(r_Ref<r_GMarray> &mddObj, rviewBaseType baseType, int dimproject, int projval);
  void updateCanvasSize(void);
  void rebuildThumbnails(bool fromScratch);
  void initForObject(r_Ref<r_GMarray> &mddObj);
  int parseProjection(r_Ref<r_GMarray> &mddObj);
  void configureCspace(bool mode);

  char projString[STRINGSIZE];
  r_Point pt1, pt2, mapIndex;
  int thumbs, thumbsperline, numPixmaps;
  int maxHeight;
  int gridX, gridY;
  int imgWidth;
  int dimMDD;		// should be constant for all objects!
  int dim1, dim2;	// dimensions to iterate over
  int dimproj;		// projection dim for 3+D objects
  int projstep;		// stepping value in dimproj
  unsigned int freeDims;
  rviewThumbList *listHead;
  thumbCanvas *canvas;
  wxMenuBar *mbar;
  wxPanel *panel;
  rviewText *thumbWidth;
  rviewText *thumbCols;
  rviewText *project;
  rviewText *thumbProj, *thumbStep;
  wxFont *font;
  colourspaceMapper *csmap;
  bool doValToCspace;
  bool doFullRangeCspace;
  bool canDoCspace;
};

#endif