/********************************************************************
This file is part of the abs 0.907 distribution.  abs is a spreadsheet
with graphical user interface.

Copyright (C) 1998-2001  André Bertin (Andre.Bertin@ping.be) 

This program 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 2 of the License, or
(at your option) any later version if in the same spirit as version 2.

This program 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 this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

Concact: abs@pi.be
         http://home.pi.be/bertin/abs.shtml

*********************************************************************/


























#include <stdio.h>

#include "clipboard.h"
#include "workbook.h"
#include "worksheet.h"
#include "graph.h"
#include "draw.h"
#include "button.h"
#include "cell.h"
#include "range.h"

#include "symboltable.h"
#include "memory.h"

#include "sheetdrawer.h"

#include "info_dialog.h"



Clipboard *clipboard;

#define cpbd clipboard

int 
copy_clipboard (Selection * sel)
{				
  obj o;

  clear_clipboard (clipboard);

  selection_resetget (sel);
  o = selection_getobjects (sel);

  while (o.type != SEL_END)
    {
      if (o.type == name2type ("RANGE"))
	{
	  Range *ran = (Range *) o.rec.s;
	  int r, c;
	  int i;
	  for (i = 0; i < ran->nplage; i++)
	    {
	      int r1 = ran->plage[i].r1;
	      int r2 = ran->plage[i].r2;
	      int c1 = ran->plage[i].c1;
	      int c2 = ran->plage[i].c2;
	      if (r1 < cpbd->r1)
		cpbd->r1 = r1;
	      if (c1 < cpbd->c1)
		cpbd->c1 = c1;
	      if (r2 > cpbd->r2)
		cpbd->r2 = r2;
	      if (c2 > cpbd->c2)
		cpbd->c2 = c2;

	      if (ActiveWorksheet != NULL)
		for (r = r1; r <= r2; r++)
		  for (c = c1; c <= c2; c++)
		    {
		      Cell *cell = worksheet_getcell (ActiveWorksheet, r, c, -1);
		      if (cell != NULL)
			{
			  Cell *copy = newcell (r, c);
			  copy->worksheet = NULL;
			  cell_cpy (copy, cell);
			  cpbd->ncells++;
			  cpbd->cells = (Cell **) absrealloc (cpbd->cells, sizeof (Cell *) * cpbd->ncells, "copy_clipboard:clipboard->cells");
			  cpbd->cells[cpbd->ncells - 1] = copy;
			}
		    }
	    }
	}

      
      if (o.type == name2type ("CHART"))
	{
	  Graph *graph = (Graph *) o.rec.s;
	  Graph *copy = newgraph1 (graph);

	  cpbd->ngraphs++;
	  cpbd->graphs = (Graph **) absrealloc (cpbd->graphs, sizeof (Graph *) * cpbd->ngraphs, "copy_clipboard:clipboard->graphs");
	  cpbd->graphs[cpbd->ngraphs - 1] = copy;
	}
      
      if (o.type == name2type ("SHAPES"))
	{
	  Drawing *draw = (Drawing *) o.rec.s;
	  Drawing *copy = newdrawing1 (draw);
	  
	  cpbd->ndrawings++;
	  cpbd->drawings = (Drawing **) absrealloc (cpbd->drawings, sizeof (Drawing *) * cpbd->ndrawings, "copy_clipboard:clipboard->drawings");
	  cpbd->drawings[cpbd->ndrawings - 1] = copy;
	}
      o = selection_getobjects (sel);
    }

  

  return 0;
}

int 
paste_clipboard (Selection * sel)
{				
  obj o;
  int r2;
  int r1;
  int c2;
  int c1;
  int r, c, dr, dc;
  int i;
  int first = 1;
  int over = 0;
  Cell *copy;
  Cell *dest;
  Cell *cell;

  if (ActiveWorksheet == NULL)
    return -1;

  if (sel == NULL)
    {
      r1 = 1;
      r2 = ActiveWorksheet->nblin + 1;
      c1 = 1;
      c2 = ActiveWorksheet->nbcol + 1;
    }
  else
    {
      r2 = 0;
      r1 = ActiveWorksheet->nblin + 1;
      c2 = 0;
      c1 = ActiveWorksheet->nbcol + 1;
      o = selection_getobjects (sel);

      while (o.type != SEL_END)
	{
	  if (o.type == name2type ("RANGE"))
	    {
	      Range *ran = (Range *) o.rec.s;
	      for (i = 0; i < ran->nplage; i++)
		{
		  if (r1 > ran->plage[i].r1)
		    r1 = ran->plage[i].r1;
		  if (r2 < ran->plage[i].r2)
		    r2 = ran->plage[i].r2;
		  if (c1 > ran->plage[i].c1)
		    c1 = ran->plage[i].c1;
		  if (c2 < ran->plage[i].c2)
		    c2 = ran->plage[i].c2;
		}
	    }
	  o = selection_getobjects (sel);
	}
    }



  

  

  if (clipboard->ncells > 0)
    {
      
      for (r = r1; r <= r2; r++)
	for (c = c1; c <= c2; c++)
	  {
	    cell = worksheet_getcell (ActiveWorksheet, r, c, -1);
	    if (cell != NULL)
	      {
		
		if (first && cell_getformula (cell) != NULL)
		  {
		    if (Ask ("Overwrite destination cells?", NULL) != RET_OK)
		      return 0;
		    first = 0;
		    over = 1;
		  }
		clear_cell (cell);
		xdrawcell2 (cell, DRAW_FORCED, 0);
	      }
	  }

      
      for (i = 0; i < clipboard->ncells; i++)
	{
	  copy = clipboard->cells[i];
	  dr = r1 - clipboard->r1;
	  dc = c1 - clipboard->c1;
	  dest = worksheet_getcell (ActiveWorksheet, copy->r + dr, copy->c + dc, 1);
	  
	  
	  

	  if (dest != NULL)
	    {
	      copymod2 (dest, copy, copy->r, copy->c, dr, dc);


	      if (copy->style != NULL)
		{
		  if (dest->style == NULL)
		    dest->style = newstyle (STY_CELL);
		  style_cpy (dest->style, copy->style);
		}
	      else
		{
		  if (dest->style != NULL)
		    {
		      freestyle (dest->style);
		      dest->style = NULL;
		    }
		}

	      xdrawcell2 (dest, DRAW_FORCED, 0);
	    }
	}
    }				


  for (i = 0; i < clipboard->ngraphs; i++)
    {

      worksheet_newgraph1 (ActiveWorksheet, clipboard->graphs[i]);
    }


  for (i = 0; i < clipboard->ndrawings; i++)
    {

      worksheet_newdrawing1 (ActiveWorksheet, clipboard->drawings[i]);
    }

  return 0;
}

int 
paste_special_clipboard (Selection * sel, int all, int formula, int value, int format, int none, int add, int sub, int div, int mul, int trans)
{				
  obj o;
  int r2;
  int r1;
  int c2;
  int c1;
  int r, c, dr, dc;
  int i;
  int first = 1;
  int over = 0;
  Cell *copy;
  Cell *dest;
  Cell *cell;

  if (ActiveWorksheet == NULL)
    return -1;

  if (sel == NULL)
    {
      r1 = 1;
      r2 = ActiveWorksheet->nblin + 1;
      c1 = 1;
      c2 = ActiveWorksheet->nbcol + 1;
    }
  else
    {
      r2 = 0;
      r1 = ActiveWorksheet->nblin + 1;
      c2 = 0;
      c1 = ActiveWorksheet->nbcol + 1;
      o = selection_getobjects (sel);

      while (o.type != SEL_END)
	{
	  if (o.type == name2type ("RANGE"))
	    {
	      Range *ran = (Range *) o.rec.s;
	      for (i = 0; i < ran->nplage; i++)
		{
		  if (r1 > ran->plage[i].r1)
		    r1 = ran->plage[i].r1;
		  if (r2 < ran->plage[i].r2)
		    r2 = ran->plage[i].r2;
		  if (c1 > ran->plage[i].c1)
		    c1 = ran->plage[i].c1;
		  if (c2 < ran->plage[i].c2)
		    c2 = ran->plage[i].c2;
		}
	    }
	  o = selection_getobjects (sel);
	}
    }



  

  

  if (clipboard->ncells > 0)
    {
      if (all || formula)
	{
	  
	  for (r = r1; r <= r2; r++)
	    for (c = c1; c <= c2; c++)
	      {
		if (!trans)
		  cell = worksheet_getcell (ActiveWorksheet, r, c, -1);
		else
		  cell = worksheet_getcell (ActiveWorksheet, r + c - c1, c + r - r1, -1);
		if (cell != NULL)
		  {
		    
		    if (first && cell_getformula (cell) != NULL)
		      {
			if (Ask ("Overwrite destination cells?", NULL) != RET_OK)
			  return 0;
			first = 0;
			over = 1;
		      }
		    clear_cell (cell);
		    xdrawcell2 (cell, DRAW_FORCED, 0);
		  }
	      }
	}

      
      for (i = 0; i < clipboard->ncells; i++)
	{
	  copy = clipboard->cells[i];
	  if (!trans)
	    {
	      dr = r1 - clipboard->r1;
	      dc = c1 - clipboard->c1;
	      dest = worksheet_getcell (ActiveWorksheet, copy->r + dr, copy->c + dc, 1);
	    }
	  else
	    {
	      dr = r1 - clipboard->r1;
	      dc = c1 - clipboard->c1;
	      dest = worksheet_getcell (ActiveWorksheet, r1 + copy->c - clipboard->c1, c1 + copy->r - clipboard->r1, 1);
	    }

	  
	  
	  

	  if (dest != NULL)
	    {
	      if (formula || all)
		copymod2 (dest, copy, copy->r, copy->c, dr, dc);

	      if (value)
		{
		  if (none)
		    cell_setvalue (dest, cell_getvalue (copy));
		  if (add)
		    cell_setvalue (dest, cell_getvalue (dest) + cell_getvalue (copy));
		  if (sub)
		    cell_setvalue (dest, cell_getvalue (dest) - cell_getvalue (copy));
		  if (div)
		    {
		      if (cell_getvalue (copy) != 0)
			cell_setvalue (dest, cell_getvalue (dest) / cell_getvalue (copy));
		      
		      
		    }
		  if (mul)
		    cell_setvalue (dest, cell_getvalue (dest) * cell_getvalue (copy));
		}

	      if (format || all)
		{
		  if (copy->style != NULL)
		    {
		      if (dest->style == NULL)
			dest->style = newstyle (STY_CELL);
		      style_cpy (dest->style, copy->style);
		    }
		  else
		    {
		      if (dest->style != NULL)
			{
			  freestyle (dest->style);
			  dest->style = NULL;
			}
		    }
		}

	      xdrawcell2 (dest, DRAW_FORCED, 0);
	    }
	}
    }				

  return 0;
}





int 
cut_clipboard (Selection * sel)
{				

  obj o;
  int r2;
  int r1;
  int c2;
  int c1;
  int r, c;
  int i;
  Cell *cell;

  if (sel == NULL)
    {
      return -1;
    }

  

  if (copy_clipboard (sel) != 0)
    return -2;

  o = selection_getobjects (sel);
  while (o.type != SEL_END)
    {
      if (o.type == name2type ("RANGE"))
	{
	  Range *ran = (Range *) o.rec.s;
	  for (i = 0; i < ran->nplage; i++)
	    {
	      r1 = ran->plage[i].r1;
	      r2 = ran->plage[i].r2;
	      c1 = ran->plage[i].c1;
	      c2 = ran->plage[i].c2;
	      
	      for (r = r1; r <= r2; r++)
		for (c = c1; c <= c2; c++)
		  {
		    cell = worksheet_getcell (ActiveWorksheet, r, c, -1);
		    if (cell != NULL)
		      {
			clear_cell (cell);
			
			xdrawcell2 (cell, DRAW_FORCED, 0);
		      }
		  }
	    }
	}
      if (o.type == name2type ("CHART"))
	{
	  Graph *gr = (Graph *) o.rec.s;

	  freegraph (gr);
	}
      if (o.type == name2type ("SHAPES"))
	{
	  Drawing *dr = (Drawing *) o.rec.s;
	  
	  freedrawing (dr);
	}
      o = selection_getobjects (sel);
    }

  return 0;
}

Clipboard *
newclipboard ()
{
  Clipboard *clipboard = (Clipboard *) absmalloc (sizeof (Clipboard), "newclipboard:clipboard");
  cpbd->ncells = 0;
  cpbd->cells = NULL;
  cpbd->ngraphs = 0;
  cpbd->graphs = NULL;
  cpbd->ndrawings = 0;
  cpbd->drawings = 0;
  return clipboard;
}

int 
freeclipboard (Clipboard * clipboard)
{

  if (clipboard == NULL)
    return -1;
  clear_clipboard (clipboard);
  absfree (clipboard, "freeclipboard:clipboard");

  return 0;
}

int 
clear_clipboard (Clipboard * clipboard)
{
  int i;
  if (clipboard == NULL)
    return -1;
  
  if (clipboard->cells != NULL)
    {
      for (i = 0; i < cpbd->ncells; i++)
	freecell (cpbd->cells[i]);
      absfree (cpbd->cells, "copy_cpbd:clipboard->cells");
      cpbd->cells = NULL;
    }
  cpbd->ncells = 0;
  cpbd->r1 = ActiveWorksheet->nblin + 1;
  cpbd->r2 = 0;
  cpbd->c1 = ActiveWorksheet->nbcol + 1;

  
  if (clipboard->graphs != NULL)
    {
      for (i = 0; i < cpbd->ngraphs; i++)
	freegraph (cpbd->graphs[i]);
      absfree (cpbd->graphs, "copy_cpbd:clipboard->graphs");
      cpbd->graphs = NULL;
    }
  cpbd->ngraphs = 0;

  
  if (clipboard->drawings != NULL)
    {
      for (i = 0; i < cpbd->ndrawings; i++)
	freedrawing (cpbd->drawings[i]);
      absfree (cpbd->drawings, "copy_cpbd:clipboard->drawings");
      cpbd->drawings = NULL;
    }
  cpbd->ndrawings = 0;


  cpbd->c2 = 0;
  return 0;
}