<?php

/*
 * Copyleft 2002 Johann Hanne
 *
 * This is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place,
 * Suite 330, Boston, MA  02111-1307 USA
 */

/*
 * This is the Spreadsheet::WriteExcel Perl package ported to PHP
 * Spreadsheet::WriteExcel was written by John McNamara, jmcnamara@cpan.org
 */

require_once "class.writeexcel_biffwriter.inc.php";
require_once 
"class.writeexcel_format.inc.php";
require_once 
"class.writeexcel_formula.inc.php";
require_once 
"class.writeexcel_olewriter.inc.php";

class 
writeexcel_workbook extends writeexcel_biffwriter {

    var 
$_filename;
    var 
$_tmpfilename;
    var 
$_parser;
    var 
$_tempdir;
    var 
$_1904;
    var 
$_activesheet;
    var 
$_firstsheet;
    var 
$_selected;
    var 
$_xf_index;
    var 
$_fileclosed;
    var 
$_biffsize;
    var 
$_sheetname;
    var 
$_tmp_format;
    var 
$_url_format;
    var 
$_codepage;
    var 
$_worksheets;
    var 
$_sheetnames;
    var 
$_formats;
    var 
$_palette;

###############################################################################
#
# new()
#
# Constructor. Creates a new Workbook object from a BIFFwriter object.
#
function writeexcel_workbook($filename) {

    
$this->writeexcel_biffwriter();

    
$tmp_format  = new writeexcel_format();
    
$byte_order  $this->_byte_order;
    
$parser      = new writeexcel_formula($byte_order);

    
$this->_filename          $filename;
    
$this->_parser            $parser;
//?    $this->_tempdir           = undef;
    
$this->_1904              0;
    
$this->_activesheet       0;
    
$this->_firstsheet        0;
    
$this->_selected          0;
    
$this->_xf_index          16# 15 style XF's and 1 cell XF.
    
$this->_fileclosed        0;
    
$this->_biffsize          0;
    
$this->_sheetname         "Sheet";
    
$this->_tmp_format        $tmp_format;
    
$this->_url_format        false;
    
$this->_codepage          0x04E4;
    
$this->_worksheets        = array();
    
$this->_sheetnames        = array();
    
$this->_formats           = array();
    
$this->_palette           = array();

    
# Add the default format for hyperlinks
    
$this->_url_format =& $this->addformat(array('color' => 'blue''underline' => 1));

    
# Check for a filename
    
if ($this->_filename == '') {
//todo: print error
        
return;
    }

    
# Try to open the named file and see if it throws any errors.
    # If the filename is a reference it is assumed that it is a valid
    # filehandle and ignore
    #
//todo

    # Set colour palette.
    
$this->set_palette_xl97();
}

###############################################################################
#
# close()
#
# Calls finalization methods and explicitly close the OLEwriter file
# handle.
#
function close() {
    
# Prevent close() from being called twice.
    
if ($this->_fileclosed) {
        return;
    }

    
$this->_store_workbook();
    
$this->_fileclosed 1;
}

//PHPport: method DESTROY deleted

###############################################################################
#
# sheets()
#
# An accessor for the _worksheets[] array
#
# Returns: a list of the worksheet objects in a workbook
#
function &sheets() {
    return 
$this->_worksheets;
}

//PHPport: method worksheets deleted:
# This method is now deprecated. Use the sheets() method instead.

###############################################################################
#
# addworksheet($name)
#
# Add a new worksheet to the Excel workbook.
# TODO: Add accessor for $self->{_sheetname} for international Excel versions.
#
# Returns: reference to a worksheet object
#
function &addworksheet($name="") {

    
# Check that sheetname is <= 31 chars (Excel limit).
    
if (strlen($name) > 31) {
        
trigger_error("Sheetname $name must be <= 31 chars"E_USER_ERROR);
    }

    
$index     sizeof($this->_worksheets);
    
$sheetname $this->_sheetname;

    if (
$name == "") {
        
$name $sheetname . ($index+1);
    }

    
# Check that the worksheet name doesn't already exist: a fatal Excel error.
    
foreach ($this->_worksheets as $tmp) {
        if (
$name == $tmp->get_name()) {
            
trigger_error("Worksheet '$name' already exists"E_USER_ERROR);
        }
    }

    
$worksheet =& new writeexcel_worksheet($name$index$this->_activesheet,
                                          
$this->_firstsheet,
                                          
$this->_url_format$this->_parser,
                                          
$this->_tempdir);

    
$this->_worksheets[$index] = &$worksheet;    # Store ref for iterator
    
$this->_sheetnames[$index] = $name;         # Store EXTERNSHEET names
    
$this->_parser->set_ext_sheet($name$index); # Store names in Formula.pm
    
return $worksheet;
}

###############################################################################
#
# addformat(%properties)
#
# Add a new format to the Excel workbook. This adds an XF record and
# a FONT record. Also, pass any properties to the Format::new().
#
function &addformat($para=false) {
    if(
$para===false) {
        
$format =& new writeexcel_format($this->_xf_index);
    } else {
        
$format =& new writeexcel_format($this->_xf_index$para);
    }

    
$this->_xf_index += 1;
    
# Store format reference
    
$this->_formats[]=&$format;

    return 
$format;
}

###############################################################################
#
# set_1904()
#
# Set the date system: 0 = 1900 (the default), 1 = 1904
#
function set_1904($_1904) {
    
$this->_1904 $_1904;
}

###############################################################################
#
# get_1904()
#
# Return the date system: 0 = 1900, 1 = 1904
#
function get_1904() {
    return 
$this->_1904;
}

###############################################################################
#
# set_custom_color()
#
# Change the RGB components of the elements in the colour palette.
#
function set_custom_color($index$red$green$blue) {
// todo
/*
    # Match a HTML #xxyyzz style parameter
    if (defined $_[1] and $_[1] =~ /^#(\w\w)(\w\w)(\w\w)/ ) {
        @_ = ($_[0], hex $1, hex $2, hex $3);
    }
*/

    
$aref    = &$this->_palette;

    
# Check that the colour index is the right range
    
if ($index or $index 64) {
//todo        carp "Color index $index outside range: 8 <= index <= 64";
        
return;
    }

    
# Check that the colour components are in the right range
    
if ( ($red   || $red   255) ||
         (
$green || $green 255) ||
         (
$blue  || $blue  255) )
    {
//todo        carp "Color component outside range: 0 <= color <= 255";
        
return;
    }

    
$index -=8# Adjust colour index (wingless dragonfly)

    # Set the RGB value
    
$aref[$index] = array($red$green$blue0);

    return 
$index +8;
}

###############################################################################
#
# set_palette_xl97()
#
# Sets the colour palette to the Excel 97+ default.
#
function set_palette_xl97() {
    
$this->_palette = array(
                            array(
0x000x000x000x00),   # 8
                            
array(0xff0xff0xff0x00),   # 9
                            
array(0xff0x000x000x00),   # 10
                            
array(0x000xff0x000x00),   # 11
                            
array(0x000x000xff0x00),   # 12
                            
array(0xff0xff0x000x00),   # 13
                            
array(0xff0x000xff0x00),   # 14
                            
array(0x000xff0xff0x00),   # 15
                            
array(0x800x000x000x00),   # 16
                            
array(0x000x800x000x00),   # 17
                            
array(0x000x000x800x00),   # 18
                            
array(0x800x800x000x00),   # 19
                            
array(0x800x000x800x00),   # 20
                            
array(0x000x800x800x00),   # 21
                            
array(0xc00xc00xc00x00),   # 22
                            
array(0x800x800x800x00),   # 23
                            
array(0x990x990xff0x00),   # 24
                            
array(0x990x330x660x00),   # 25
                            
array(0xff0xff0xcc0x00),   # 26
                            
array(0xcc0xff0xff0x00),   # 27
                            
array(0x660x000x660x00),   # 28
                            
array(0xff0x800x800x00),   # 29
                            
array(0x000x660xcc0x00),   # 30
                            
array(0xcc0xcc0xff0x00),   # 31
                            
array(0x000x000x800x00),   # 32
                            
array(0xff0x000xff0x00),   # 33
                            
array(0xff0xff0x000x00),   # 34
                            
array(0x000xff0xff0x00),   # 35
                            
array(0x800x000x800x00),   # 36
                            
array(0x800x000x000x00),   # 37
                            
array(0x000x800x800x00),   # 38
                            
array(0x000x000xff0x00),   # 39
                            
array(0x000xcc0xff0x00),   # 40
                            
array(0xcc0xff0xff0x00),   # 41
                            
array(0xcc0xff0xcc0x00),   # 42
                            
array(0xff0xff0x990x00),   # 43
                            
array(0x990xcc0xff0x00),   # 44
                            
array(0xff0x990xcc0x00),   # 45
                            
array(0xcc0x990xff0x00),   # 46
                            
array(0xff0xcc0x990x00),   # 47
                            
array(0x330x660xff0x00),   # 48
                            
array(0x330xcc0xcc0x00),   # 49
                            
array(0x990xcc0x000x00),   # 50
                            
array(0xff0xcc0x000x00),   # 51
                            
array(0xff0x990x000x00),   # 52
                            
array(0xff0x660x000x00),   # 53
                            
array(0x660x660x990x00),   # 54
                            
array(0x960x960x960x00),   # 55
                            
array(0x000x330x660x00),   # 56
                            
array(0x330x990x660x00),   # 57
                            
array(0x000x330x000x00),   # 58
                            
array(0x330x330x000x00),   # 59
                            
array(0x990x330x000x00),   # 60
                            
array(0x990x330x660x00),   # 61
                            
array(0x330x330x990x00),   # 62
                            
array(0x330x330x330x00),   # 63
                        
);

    return 
0;
}

###############################################################################
#
# set_palette_xl5()
#
# Sets the colour palette to the Excel 5 default.
#
function set_palette_xl5() {
    
$this->_palette = array(
                            array(
0x000x000x000x00),   # 8
                            
array(0xff0xff0xff0x00),   # 9
                            
array(0xff0x000x000x00),   # 10
                            
array(0x000xff0x000x00),   # 11
                            
array(0x000x000xff0x00),   # 12
                            
array(0xff0xff0x000x00),   # 13
                            
array(0xff0x000xff0x00),   # 14
                            
array(0x000xff0xff0x00),   # 15
                            
array(0x800x000x000x00),   # 16
                            
array(0x000x800x000x00),   # 17
                            
array(0x000x000x800x00),   # 18
                            
array(0x800x800x000x00),   # 19
                            
array(0x800x000x800x00),   # 20
                            
array(0x000x800x800x00),   # 21
                            
array(0xc00xc00xc00x00),   # 22
                            
array(0x800x800x800x00),   # 23
                            
array(0x800x800xff0x00),   # 24
                            
array(0x800x200x600x00),   # 25
                            
array(0xff0xff0xc00x00),   # 26
                            
array(0xa00xe00xe00x00),   # 27
                            
array(0x600x000x800x00),   # 28
                            
array(0xff0x800x800x00),   # 29
                            
array(0x000x800xc00x00),   # 30
                            
array(0xc00xc00xff0x00),   # 31
                            
array(0x000x000x800x00),   # 32
                            
array(0xff0x000xff0x00),   # 33
                            
array(0xff0xff0x000x00),   # 34
                            
array(0x000xff0xff0x00),   # 35
                            
array(0x800x000x800x00),   # 36
                            
array(0x800x000x000x00),   # 37
                            
array(0x000x800x800x00),   # 38
                            
array(0x000x000xff0x00),   # 39
                            
array(0x000xcf0xff0x00),   # 40
                            
array(0x690xff0xff0x00),   # 41
                            
array(0xe00xff0xe00x00),   # 42
                            
array(0xff0xff0x800x00),   # 43
                            
array(0xa60xca0xf00x00),   # 44
                            
array(0xdd0x9c0xb30x00),   # 45
                            
array(0xb30x8f0xee0x00),   # 46
                            
array(0xe30xe30xe30x00),   # 47
                            
array(0x2a0x6f0xf90x00),   # 48
                            
array(0x3f0xb80xcd0x00),   # 49
                            
array(0x480x840x360x00),   # 50
                            
array(0x950x8c0x410x00),   # 51
                            
array(0x8e0x5e0x420x00),   # 52
                            
array(0xa00x620x7a0x00),   # 53
                            
array(0x620x4f0xac0x00),   # 54
                            
array(0x960x960x960x00),   # 55
                            
array(0x1d0x2f0xbe0x00),   # 56
                            
array(0x280x660x760x00),   # 57
                            
array(0x000x450x000x00),   # 58
                            
array(0x450x3e0x010x00),   # 59
                            
array(0x6a0x280x130x00),   # 60
                            
array(0x850x390x6a0x00),   # 61
                            
array(0x4a0x320x850x00),   # 62
                            
array(0x420x420x420x00),   # 63
                        
);

    return 
0;
}

###############################################################################
#
# set_tempdir()
#
# Change the default temp directory used by _initialize() in Worksheet.pm.
#
function set_tempdir($tempdir) {
//todo
/*
    croak "$_[0] is not a valid directory"                 unless -d $_[0];
    croak "set_tempdir must be called before addworksheet" if $self->sheets();
*/

    
$this->_tempdir $tempdir;
}

###############################################################################
#
# set_codepage()
#
# See also the _store_codepage method. This is used to store the code page, i.e.
# the character set used in the workbook.
#
function set_codepage($cp) {

    if(
$cp==1)
      
$codepage   0x04E4;
    else if(
$cp==2)
      
$codepage   0x8000;
    if(
$codepage)
      
$this->_codepage $codepage;
}


###############################################################################
#
# _store_workbook()
#
# Assemble worksheets into a workbook and send the BIFF data to an OLE
# storage.
#
function _store_workbook() {

    
# Ensure that at least one worksheet has been selected.
    
if ($this->_activesheet == 0) {
        
$this->_worksheets[0]->_selected 1;
    }

    
# Calculate the number of selected worksheet tabs and call the finalization
    # methods for each worksheet
    
for ($c=0;$c<sizeof($this->_worksheets);$c++) {
        
$sheet=&$this->_worksheets[$c];
        if (
$sheet->_selected) {
            
$this->_selected++;
        }
        
$sheet->_close($this->_sheetnames);
    }

    
# Add Workbook globals
    
$this->_store_bof(0x0005);

    
$this->_store_externs();    # For print area and repeat rows

    
$this->_store_names();      # For print area and repeat rows

    
$this->_store_codepage();
    
    
$this->_store_window1();

    
$this->_store_1904();

    
$this->_store_all_fonts();

    
$this->_store_all_num_formats();

    
$this->_store_all_xfs();

    
$this->_store_all_styles();

    
$this->_store_palette();

    
$this->_calc_sheet_offsets();

    
# Add BOUNDSHEET records
    
for ($c=0;$c<sizeof($this->_worksheets);$c++) {
       
$sheet=&$this->_worksheets[$c];
        
$this->_store_boundsheet($sheet->_name$sheet->_offset);
    }

    
# End Workbook globals
    
$this->_store_eof();

    
# Store the workbook in an OLE container
    
$this->_store_OLE_file();
}

###############################################################################
#
# _store_OLE_file()
#
# Store the workbook in an OLE container if the total size of the workbook data
# is less than ~ 7MB.
#
function _store_OLE_file() {
## ABR
    
if ($this->_tmpfilename != '') {
        
$OLE  = new writeexcel_olewriter('/tmp/'.$this->_tmpfilename);
        
$OLE->_OLEtmpfilename '/tmp/'.$this->_tmpfilename;
    } else {
        
$OLE  = new writeexcel_olewriter($this->_filename);
        
$OLE->_OLEtmpfilename '';
    };
## END ABR
                                
    # Write Worksheet data if data <~ 7MB
    
if ($OLE->set_size($this->_biffsize)) {
        
$OLE->write_header();
        
$OLE->write($this->_data);

        for (
$c=0;$c<sizeof($this->_worksheets);$c++) {
            
$sheet=&$this->_worksheets[$c];
            while (
$tmp $sheet->get_data()) {
                
$OLE->write($tmp);
            }
            
$sheet->cleanup();
        }
    }

    
$OLE->close();
}

###############################################################################
#
# _calc_sheet_offsets()
#
# Calculate offsets for Worksheet BOF records.
#
function _calc_sheet_offsets() {

    
$BOF     11;
    
$EOF     4;
    
$offset  $this->_datasize;

    foreach (
$this->_worksheets as $sheet) {
        
$offset += $BOF strlen($sheet->_name);
    }

    
$offset += $EOF;

    for (
$c=0;$c<sizeof($this->_worksheets);$c++) {
        
$sheet=&$this->_worksheets[$c];
        
$sheet->_offset $offset;
        
$offset += $sheet->_datasize;
    }

    
$this->_biffsize $offset;
}

###############################################################################
#
# _store_all_fonts()
#
# Store the Excel FONT records.
#
function _store_all_fonts() {
    
# _tmp_format is added by new(). We use this to write the default XF's
    
$format $this->_tmp_format;
    
$font   $format->get_font();

    
# Note: Fonts are 0-indexed. According to the SDK there is no index 4,
    # so the following fonts are 0, 1, 2, 3, 5
    #
    
for ($c=0;$c<5;$c++) {
        
$this->_append($font);
    }

    
# Iterate through the XF objects and write a FONT record if it isn't the
    # same as the default FONT and if it hasn't already been used.
    #
    
$index 6;                  # The first user defined FONT

    
$key $format->get_font_key(); # The default font from _tmp_format
    
$fonts[$key] = 0;               # Index of the default font

    
for ($c=0;$c<sizeof($this->_formats);$c++) {
        
$format=&$this->_formats[$c];

        
$key $format->get_font_key();

        if (isset(
$fonts[$key])) {
            
# FONT has already been used
            
$format->_font_index $fonts[$key];
        } else {
            
# Add a new FONT record
            
$fonts[$key]           = $index;
            
$format->_font_index $index;
            
$index++;
            
$font $format->get_font();
            
$this->_append($font);
        }
    }
}

###############################################################################
#
# _store_all_num_formats()
#
# Store user defined numerical formats i.e. FORMAT records
#
function _store_all_num_formats() {

    
# Leaning num_format syndrome
    
$num_formats_list=array();
    
$index 164;

    
# Iterate through the XF objects and write a FORMAT record if it isn't a
    # built-in format type and if the FORMAT string hasn't already been used.
    #

    
for ($c=0;$c<sizeof($this->_formats);$c++) {
        
$format=&$this->_formats[$c];

        
$num_format $format->_num_format;

        
# Check if $num_format is an index to a built-in format.
        # Also check for a string of zeros, which is a valid format string
        # but would evaluate to zero.
        #
        
if (!preg_match('/^0+\d/'$num_format)) {
            if (
preg_match('/^\d+$/'$num_format)) {
                
# built-in
                
continue;
            }
        }

        if (isset(
$num_formats[$num_format])) {
            
# FORMAT has already been used
            
$format->_num_format $num_formats[$num_format];
        } else {
            
# Add a new FORMAT
            
$num_formats[$num_format] = $index;
            
$format->_num_format    $index;
            
array_push($num_formats_list$num_format);
            
$index++;
        }
    }

    
# Write the new FORMAT records starting from 0xA4
    
$index 164;
    foreach (
$num_formats_list as $num_format) {
        
$this->_store_num_format($num_format$index);
        
$index++;
    }
}

###############################################################################
#
# _store_all_xfs()
#
# Write all XF records.
#
function _store_all_xfs() {
    
# _tmp_format is added by new(). We use this to write the default XF's
    # The default font index is 0
    #
    
$format $this->_tmp_format;
    
$xf;

    for (
$c=0;$c<15;$c++) {
        
$xf $format->get_xf('style'); # Style XF
        
$this->_append($xf);
    }

    
$xf $format->get_xf('cell');      # Cell XF
    
$this->_append($xf);

    
# User defined XFs
    
foreach ($this->_formats as $format) {
        
$xf $format->get_xf('cell');
        
$this->_append($xf);
    }
}

###############################################################################
#
# _store_all_styles()
#
# Write all STYLE records.
#
function _store_all_styles() {
    
$this->_store_style();
}

###############################################################################
#
# _store_externs()
#
# Write the EXTERNCOUNT and EXTERNSHEET records. These are used as indexes for
# the NAME records.
#
function _store_externs() {

    
# Create EXTERNCOUNT with number of worksheets
    
$this->_store_externcount(sizeof($this->_worksheets));

    
# Create EXTERNSHEET for each worksheet
    
foreach ($this->_sheetnames as $sheetname) {
        
$this->_store_externsheet($sheetname);
    }
}

###############################################################################
#
# _store_names()
#
# Write the NAME record to define the print area and the repeat rows and cols.
#
function _store_names() {

    
# Create the print area NAME records
    
foreach ($this->_worksheets as $worksheet) {
        
# Write a Name record if the print area has been defined
        
if ($worksheet->_print_rowmin!==false) {
            
$this->_store_name_short(
                
$worksheet->_index,
                
0x06# NAME type
                
$worksheet->_print_rowmin,
                
$worksheet->_print_rowmax,
                
$worksheet->_print_colmin,
                
$worksheet->_print_colmax
            
);
        }
    }

    
# Create the print title NAME records
    
foreach ($this->_worksheets as $worksheet) {

        
$rowmin $worksheet->_title_rowmin;
        
$rowmax $worksheet->_title_rowmax;
        
$colmin $worksheet->_title_colmin;
        
$colmax $worksheet->_title_colmax;

        
# Determine if row + col, row, col or nothing has been defined
        # and write the appropriate record
        #
        
if ($rowmin!==false && $colmin!==false) {
            
# Row and column titles have been defined.
            # Row title has been defined.
            
$this->_store_name_long(
                
$worksheet->_index,
                
0x07# NAME type
                
$rowmin,
                
$rowmax,
                
$colmin,
                
$colmax
           
);
        } elseif (
$rowmin!==false) {
            
# Row title has been defined.
            
$this->_store_name_short(
                
$worksheet->_index,
                
0x07# NAME type
                
$rowmin,
                
$rowmax,
                
0x00,
                
0xff
            
);
        } elseif (
$colmin!==false) {
            
# Column title has been defined.
            
$this->_store_name_short(
                
$worksheet->_index,
                
0x07# NAME type
                
0x0000,
                
0x3fff,
                
$colmin,
                
$colmax
            
);
        } else {
            
# Print title hasn't been defined.
        
}
    }
}

###############################################################################
###############################################################################
#
# BIFF RECORDS
#

###############################################################################
#
# _store_window1()
#
# Write Excel BIFF WINDOW1 record.
#
function _store_window1() {

    
$record    0x003D;                 # Record identifier
    
$length    0x0012;                 # Number of bytes to follow

    
$xWn       0x0000;                 # Horizontal position of window
    
$yWn       0x0000;                 # Vertical position of window
    
$dxWn      0x25BC;                 # Width of window
    
$dyWn      0x1572;                 # Height of window

    
$grbit     0x0038;                 # Option flags
    
$ctabsel   $this->_selected;     # Number of workbook tabs selected
    
$wTabRatio 0x0258;                 # Tab to scrollbar ratio

    
$itabFirst $this->_firstsheet;   # 1st displayed worksheet
    
$itabCur   $this->_activesheet;  # Active worksheet

    
$header    pack("vv",        $record$length);
    
$data      pack("vvvvvvvvv"$xWn$yWn$dxWn$dyWn,
                                   
$grbit,
                                   
$itabCur$itabFirst,
                                   
$ctabsel$wTabRatio);

    
$this->_append($header $data);
}

###############################################################################
#
# _store_boundsheet()
#
# Writes Excel BIFF BOUNDSHEET record.
#
function _store_boundsheet($sheetname$offset) {
    
$record    0x0085;               # Record identifier
    
$length    0x07 strlen($sheetname); # Number of bytes to follow

    //$sheetname = $_[0];                # Worksheet name
    //$offset    = $_[1];                # Location of worksheet BOF
    
$grbit     0x0000;               # Sheet identifier
    
$cch       strlen($sheetname);   # Length of sheet name

    
$header    pack("vv",  $record$length);
    
$data      pack("VvC"$offset$grbit$cch);

    
$this->_append($header $data $sheetname);
}

###############################################################################
#
# _store_style()
#
# Write Excel BIFF STYLE records.
#
function _store_style() {
    
$record    0x0293# Record identifier
    
$length    0x0004# Bytes to follow

    
$ixfe      0x8000# Index to style XF
    
$BuiltIn   0x00;   # Built-in style
    
$iLevel    0xff;   # Outline style level

    
$header    pack("vv",  $record$length);
    
$data      pack("vCC"$ixfe$BuiltIn$iLevel);

    
$this->_append($header $data);
}

###############################################################################
#
# _store_num_format()
#
# Writes Excel FORMAT record for non "built-in" numerical formats.
#
function _store_num_format($num_format$index) {
    
$record    0x041E;                 # Record identifier
    
$length    0x03 strlen($num_format);   # Number of bytes to follow

    
$format    $num_format;                  # Custom format string
    
$ifmt      $index;                  # Format index code
    
$cch       strlen($format);        # Length of format string

    
$header    pack("vv"$record$length);
    
$data      pack("vC"$ifmt$cch);

    
$this->_append($header $data $format);
}

###############################################################################
#
# _store_1904()
#
# Write Excel 1904 record to indicate the date system in use.
#
function _store_1904() {
    
$record    0x0022;         # Record identifier
    
$length    0x0002;         # Bytes to follow

    
$f1904     $this->_1904# Flag for 1904 date system

    
$header    pack("vv",  $record$length);
    
$data      pack("v"$f1904);

    
$this->_append($header $data);
}

###############################################################################
#
# _store_externcount($count)
#
# Write BIFF record EXTERNCOUNT to indicate the number of external sheet
# references in the workbook.
#
# Excel only stores references to external sheets that are used in NAME.
# The workbook NAME record is required to define the print area and the repeat
# rows and columns.
#
# A similar method is used in Worksheet.pm for a slightly different purpose.
#
function _store_externcount($par0) {
    
$record   0x0016;          # Record identifier
    
$length   0x0002;          # Number of bytes to follow

    
$cxals    $par0;           # Number of external references

    
$header   pack("vv"$record$length);
    
$data     pack("v",  $cxals);

    
$this->_append($header $data);
}

###############################################################################
#
# _store_externsheet($sheetname)
#
#
# Writes the Excel BIFF EXTERNSHEET record. These references are used by
# formulas. NAME record is required to define the print area and the repeat
# rows and columns.
#
# A similar method is used in Worksheet.pm for a slightly different purpose.
#
function _store_externsheet($par0) {
    
$record      0x0017;               # Record identifier
    
$length      0x02 strlen($par0); # Number of bytes to follow

    
$sheetname   $par0;                # Worksheet name
    
$cch         strlen($sheetname);   # Length of sheet name
    
$rgch        0x03;                 # Filename encoding

    
$header      pack("vv",  $record$length);
    
$data        pack("CC"$cch$rgch);

    
$this->_append($header $data $sheetname);
}

###############################################################################
#
# _store_name_short()
#
#
# Store the NAME record in the short format that is used for storing the print
# area, repeat rows only and repeat columns only.
#
function _store_name_short($par0$par1$par2$par3$par4$par5) {
    
$record          0x0018;       # Record identifier
    
$length          0x0024;       # Number of bytes to follow

    
$index           $par0;        # Sheet index
    
$type            $par1;

    
$grbit           0x0020;       # Option flags
    
$chKey           0x00;         # Keyboard shortcut
    
$cch             0x01;         # Length of text name
    
$cce             0x0015;       # Length of text definition
    
$ixals           $index +1;    # Sheet index
    
$itab            $ixals;       # Equal to ixals
    
$cchCustMenu     0x00;         # Length of cust menu text
    
$cchDescription  0x00;         # Length of description text
    
$cchHelptopic    0x00;         # Length of help topic text
    
$cchStatustext   0x00;         # Length of status bar text
    
$rgch            $type;        # Built-in name type

    
$unknown03       0x3b;
    
$unknown04       0xffff-$index;
    
$unknown05       0x0000;
    
$unknown06       0x0000;
    
$unknown07       0x1087;
    
$unknown08       0x8005;

    
$rowmin          $par2;        # Start row
    
$rowmax          $par3;        # End row
    
$colmin          $par4;        # Start column
    
$colmax          $par5;        # end column

    
$header          pack("vv",  $record$length);
    
$data            pack("v"$grbit);
    
$data              .= pack("C"$chKey);
    
$data              .= pack("C"$cch);
    
$data              .= pack("v"$cce);
    
$data              .= pack("v"$ixals);
    
$data              .= pack("v"$itab);
    
$data              .= pack("C"$cchCustMenu);
    
$data              .= pack("C"$cchDescription);
    
$data              .= pack("C"$cchHelptopic);
    
$data              .= pack("C"$cchStatustext);
    
$data              .= pack("C"$rgch);
    
$data              .= pack("C"$unknown03);
    
$data              .= pack("v"$unknown04);
    
$data              .= pack("v"$unknown05);
    
$data              .= pack("v"$unknown06);
    
$data              .= pack("v"$unknown07);
    
$data              .= pack("v"$unknown08);
    
$data              .= pack("v"$index);
    
$data              .= pack("v"$index);
    
$data              .= pack("v"$rowmin);
    
$data              .= pack("v"$rowmax);
    
$data              .= pack("C"$colmin);
    
$data              .= pack("C"$colmax);

    
$this->_append($header $data);
}

###############################################################################
#
# _store_name_long()
#
#
# Store the NAME record in the long format that is used for storing the repeat
# rows and columns when both are specified. This share a lot of code with
# _store_name_short() but we use a separate method to keep the code clean.
# Code abstraction for reuse can be carried too far, and I should know. ;-)
#
function _store_name_long($par0$par1$par2$par3$par4$par5) {
    
$record          0x0018;       # Record identifier
    
$length          0x003d;       # Number of bytes to follow

    
$index           $par0;        # Sheet index
    
$type            $par1;

    
$grbit           0x0020;       # Option flags
    
$chKey           0x00;         # Keyboard shortcut
    
$cch             0x01;         # Length of text name
    
$cce             0x002e;       # Length of text definition
    
$ixals           $index +1;    # Sheet index
    
$itab            $ixals;       # Equal to ixals
    
$cchCustMenu     0x00;         # Length of cust menu text
    
$cchDescription  0x00;         # Length of description text
    
$cchHelptopic    0x00;         # Length of help topic text
    
$cchStatustext   0x00;         # Length of status bar text
    
$rgch            $type;        # Built-in name type

    
$unknown01       0x29;
    
$unknown02       0x002b;
    
$unknown03       0x3b;
    
$unknown04       0xffff-$index;
    
$unknown05       0x0000;
    
$unknown06       0x0000;
    
$unknown07       0x1087;
    
$unknown08       0x8008;

    
$rowmin          $par2;        # Start row
    
$rowmax          $par3;        # End row
    
$colmin          $par4;        # Start column
    
$colmax          $par5;        # end column

    
$header          pack("vv",  $record$length);
    
$data            pack("v"$grbit);
    
$data              .= pack("C"$chKey);
    
$data              .= pack("C"$cch);
    
$data              .= pack("v"$cce);
    
$data              .= pack("v"$ixals);
    
$data              .= pack("v"$itab);
    
$data              .= pack("C"$cchCustMenu);
    
$data              .= pack("C"$cchDescription);
    
$data              .= pack("C"$cchHelptopic);
    
$data              .= pack("C"$cchStatustext);
    
$data              .= pack("C"$rgch);
    
$data              .= pack("C"$unknown01);
    
$data              .= pack("v"$unknown02);
    
# Column definition
    
$data              .= pack("C"$unknown03);
    
$data              .= pack("v"$unknown04);
    
$data              .= pack("v"$unknown05);
    
$data              .= pack("v"$unknown06);
    
$data              .= pack("v"$unknown07);
    
$data              .= pack("v"$unknown08);
    
$data              .= pack("v"$index);
    
$data              .= pack("v"$index);
    
$data              .= pack("v"0x0000);
    
$data              .= pack("v"0x3fff);
    
$data              .= pack("C"$colmin);
    
$data              .= pack("C"$colmax);
    
# Row definition
    
$data              .= pack("C"$unknown03);
    
$data              .= pack("v"$unknown04);
    
$data              .= pack("v"$unknown05);
    
$data              .= pack("v"$unknown06);
    
$data              .= pack("v"$unknown07);
    
$data              .= pack("v"$unknown08);
    
$data              .= pack("v"$index);
    
$data              .= pack("v"$index);
    
$data              .= pack("v"$rowmin);
    
$data              .= pack("v"$rowmax);
    
$data              .= pack("C"0x00);
    
$data              .= pack("C"0xff);
    
# End of data
    
$data              .= pack("C"0x10);

    
$this->_append($header $data);
}

###############################################################################
#
# _store_palette()
#
# Stores the PALETTE biff record.
#
function _store_palette() {
    
$aref            = &$this->_palette;

    
$record          0x0092;                  # Record identifier
    
$length          sizeof($aref);   # Number of bytes to follow
    
$ccv             =         sizeof($aref);   # Number of RGB values to follow
    //$data;                                      # The RGB data

    # Pack the RGB data
    
foreach($aref as $dat) {
        
$data .= call_user_func_array('pack'array_merge(array("CCCC"), $dat));
    }

    
$header pack("vvv",  $record$length$ccv);

    
$this->_append($header $data);
}

###############################################################################
#
# _store_codepage()
#
# Stores the CODEPAGE biff record.
#
function _store_codepage() {

    
$record          0x0042;               # Record identifier
    
$length          0x0002;               # Number of bytes to follow
    
$cv              $this->_codepage;     # The code page

    
$header          pack("vv"$record$length);
    
$data            pack("v",  $cv);

    
$this->_append($header.$data);
}

}

?>