/include/php_writeexcel/class.writeexcel_worksheet.inc.php
PHP | 2954 lines | 1615 code | 510 blank | 829 comment | 223 complexity | 73aa872ec571c908ea15f910fb28d549 MD5 | raw file
Possible License(s): LGPL-2.1, GPL-2.0
- <?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";
- class writeexcel_worksheet extends writeexcel_biffwriter {
- var $_name;
- var $_index;
- var $_activesheet;
- var $_firstsheet;
- var $_url_format;
- var $_parser;
- var $_tempdir;
- var $_ext_sheets;
- var $_using_tmpfile;
- var $_filehandle;
- var $_fileclosed;
- var $_offset;
- var $_xls_rowmax;
- var $_xls_colmax;
- var $_xls_strmax;
- var $_dim_rowmin;
- var $_dim_rowmax;
- var $_dim_colmin;
- var $_dim_colmax;
- var $_colinfo;
- var $_selection;
- var $_panes;
- var $_active_pane;
- var $_frozen;
- var $_selected;
- var $_paper_size;
- var $_orientation;
- var $_header;
- var $_footer;
- var $_hcenter;
- var $_vcenter;
- var $_margin_head;
- var $_margin_foot;
- var $_margin_left;
- var $_margin_right;
- var $_margin_top;
- var $_margin_bottom;
- var $_title_rowmin;
- var $_title_rowmax;
- var $_title_colmin;
- var $_title_colmax;
- var $_print_rowmin;
- var $_print_rowmax;
- var $_print_colmin;
- var $_print_colmax;
- var $_print_gridlines;
- var $_screen_gridlines;
- var $_print_headers;
- var $_fit_page;
- var $_fit_width;
- var $_fit_height;
- var $_hbreaks;
- var $_vbreaks;
- var $_protect;
- var $_password;
- var $_col_sizes;
- var $_row_sizes;
- var $_col_formats;
- var $_row_formats;
- var $_zoom;
- var $_print_scale;
- //added to get the tmp file name
- var $_tmp_file_name;
- /*
- * Constructor. Creates a new Worksheet object from a BIFFwriter object
- */
- function writeexcel_worksheet($name, $index, &$activesheet, &$firstsheet,
- &$url_format, &$parser, $tempdir) {
- $this->writeexcel_biffwriter();
- $rowmax = 65536; // 16384 in Excel 5
- $colmax = 256;
- $strmax = 20000;
- $this->_name = $name;
- $this->_index = $index;
- $this->_activesheet = &$activesheet;
- $this->_firstsheet = &$firstsheet;
- $this->_url_format = &$url_format;
- $this->_parser = &$parser;
- $this->_tempdir = $tempdir;
- $this->_ext_sheets = array();
- $this->_using_tmpfile = 1;
- $this->_filehandle = false;
- $this->_fileclosed = 0;
- $this->_offset = 0;
- $this->_xls_rowmax = $rowmax;
- $this->_xls_colmax = $colmax;
- $this->_xls_strmax = $strmax;
- $this->_dim_rowmin = $rowmax +1;
- $this->_dim_rowmax = 0;
- $this->_dim_colmin = $colmax +1;
- $this->_dim_colmax = 0;
- $this->_colinfo = array();
- $this->_selection = array(0, 0);
- $this->_panes = array();
- $this->_active_pane = 3;
- $this->_frozen = 0;
- $this->_selected = 0;
- $this->_paper_size = 0x0;
- $this->_orientation = 0x1;
- $this->_header = '';
- $this->_footer = '';
- $this->_hcenter = 0;
- $this->_vcenter = 0;
- $this->_margin_head = 0.50;
- $this->_margin_foot = 0.50;
- $this->_margin_left = 0.75;
- $this->_margin_right = 0.75;
- $this->_margin_top = 1.00;
- $this->_margin_bottom = 1.00;
- $this->_title_rowmin = false;
- $this->_title_rowmax = false;
- $this->_title_colmin = false;
- $this->_title_colmax = false;
- $this->_print_rowmin = false;
- $this->_print_rowmax = false;
- $this->_print_colmin = false;
- $this->_print_colmax = false;
- $this->_print_gridlines = 1;
- $this->_screen_gridlines = 1;
- $this->_print_headers = 0;
- $this->_fit_page = 0;
- $this->_fit_width = 0;
- $this->_fit_height = 0;
- $this->_hbreaks = array();
- $this->_vbreaks = array();
- $this->_protect = 0;
- $this->_password = false;
- $this->_col_sizes = array();
- $this->_row_sizes = array();
- $this->_col_formats = array();
- $this->_row_formats = array();
- $this->_zoom = 100;
- $this->_print_scale = 100;
- $this->_initialize();
- }
- ###############################################################################
- #
- # _initialize()
- #
- # Open a tmp file to store the majority of the Worksheet data. If this fails,
- # for example due to write permissions, store the data in memory. This can be
- # slow for large files.
- #
- function _initialize() {
- # Open tmp file for storing Worksheet data.
- $this->_tmp_file_name = tempnam($this->_tempdir, "php_writeexcel");
- $fh=fopen($this->_tmp_file_name, "w+b");
- if ($fh) {
- # Store filehandle
- $this->_filehandle = $fh;
- } else {
- # If tempfile() failed store data in memory
- $this->_using_tmpfile = 0;
- if ($this->_index == 0) {
- $dir = $this->_tempdir;
- //todo warn "Unable to create temp files in $dir. Refer to set_tempdir()".
- // " in the Spreadsheet::WriteExcel documentation.\n" ;
- }
- }
- }
- /*
- * Add data to the beginning of the workbook (note the reverse order)
- * and to the end of the workbook.
- */
- function _close($sheetnames) {
- ///////////////////////////////
- // Prepend in reverse order!!
- //
- $this->_store_dimensions(); // Prepend the sheet dimensions
- $this->_store_password(); // Prepend the sheet password
- $this->_store_protect(); // Prepend the sheet protection
- $this->_store_setup(); // Prepend the page setup
- $this->_store_margin_bottom(); // Prepend the bottom margin
- $this->_store_margin_top(); // Prepend the top margin
- $this->_store_margin_right(); // Prepend the right margin
- $this->_store_margin_left(); // Prepend the left margin
- $this->_store_vcenter(); // Prepend the page vertical
- // centering
- $this->_store_hcenter(); // Prepend the page horizontal
- // centering
- $this->_store_footer(); // Prepend the page footer
- $this->_store_header(); // Prepend the page header
- $this->_store_vbreak(); // Prepend the vertical page breaks
- $this->_store_hbreak(); // Prepend the horizontal
- // page breaks
- $this->_store_wsbool(); // Prepend WSBOOL
- $this->_store_gridset(); // Prepend GRIDSET
- $this->_store_print_gridlines(); // Prepend PRINTGRIDLINES
- $this->_store_print_headers(); // Prepend PRINTHEADERS
- // Prepend EXTERNSHEET references
- $num_sheets = sizeof($sheetnames);
- for ($i = $num_sheets; $i > 0; $i--) {
- $sheetname = $sheetnames[$i-1];
- $this->_store_externsheet($sheetname);
- }
- $this->_store_externcount($num_sheets); // Prepend the EXTERNCOUNT
- // of external references.
- // Prepend the COLINFO records if they exist
- if (sizeof($this->_colinfo)>0){
- while (sizeof($this->_colinfo)>0) {
- $arrayref = array_pop ($this->_colinfo);
- $this->_store_colinfo($arrayref);
- }
- $this->_store_defcol();
- }
- $this->_store_bof(0x0010); // Prepend the BOF record
- //
- // End of prepend. Read upwards from here.
- ////////////////////////////////////////////
- // Append
- $this->_store_window2();
- $this->_store_zoom();
- if (sizeof($this->_panes)>0) {
- $this->_store_panes($this->_panes);
- }
- $this->_store_selection($this->_selection);
- $this->_store_eof();
- }
- /*
- * Retrieve the worksheet name.
- */
- function get_name() {
- return $this->_name;
- }
- ###############################################################################
- #
- # get_data().
- #
- # Retrieves data from memory in one chunk, or from disk in $buffer
- # sized chunks.
- #
- function get_data() {
- $buffer = 4096;
- # Return data stored in memory
- if ($this->_data!==false) {
- $tmp = $this->_data;
- $this->_data=false;
- $fh = $this->_filehandle;
- if ($this->_using_tmpfile) {
- fseek($fh, 0, SEEK_SET);
- }
- if ($this->_debug) {
- print "*** worksheet::get_data() called (1):";
- for ($c=0;$c<strlen($tmp);$c++) {
- if ($c%16==0) {
- print "\n";
- }
- printf("%02X ", ord($tmp[$c]));
- }
- print "\n";
- }
- return $tmp;
- }
- # Return data stored on disk
- if ($this->_using_tmpfile) {
- if ($tmp=fread($this->_filehandle, $buffer)) {
- if ($this->_debug) {
- print "*** worksheet::get_data() called (2):";
- for ($c=0;$c<strlen($tmp);$c++) {
- if ($c%16==0) {
- print "\n";
- }
- printf("%02X ", ord($tmp[$c]));
- }
- print "\n";
- }
- return $tmp;
- }
- }
- # No data to return
- return false;
- }
- /*
- * Set this worksheet as a selected worksheet, i.e. the worksheet has
- * its tab highlighted.
- */
- function select() {
- $this->_selected = 1;
- }
- /*
- * Set this worksheet as the active worksheet, i.e. the worksheet
- * that is displayed when the workbook is opened. Also set it as
- * selected.
- */
- function activate() {
- $this->_selected = 1;
- $this->_activesheet = $this->_index;
- }
- /*
- * Set this worksheet as the first visible sheet. This is necessary
- * when there are a large number of worksheets and the activated
- * worksheet is not visible on the screen.
- */
- function set_first_sheet() {
- $this->_firstsheet = $this->_index;
- }
- /*
- * Set the worksheet protection flag to prevent accidental modification
- * and to hide formulas if the locked and hidden format properties have
- * been set.
- */
- function protect($password) {
- $this->_protect = 1;
- $this->_password = $this->_encode_password($password);
- }
- ###############################################################################
- #
- # set_column($firstcol, $lastcol, $width, $format, $hidden)
- #
- # Set the width of a single column or a range of column.
- # See also: _store_colinfo
- #
- function set_column() {
- $_=func_get_args();
- $cell = $_[0];
- # Check for a cell reference in A1 notation and substitute row and column
- if (preg_match('/^\D/', $cell)) {
- $_ = $this->_substitute_cellref($_);
- }
- array_push($this->_colinfo, $_);
- # Store the col sizes for use when calculating image vertices taking
- # hidden columns into account. Also store the column formats.
- #
- if (sizeof($_)<3) {
- # Ensure at least $firstcol, $lastcol and $width
- return;
- }
- $width = $_[4] ? 0 : $_[2]; # Set width to zero if column is hidden
- $format = $_[3];
- list($firstcol, $lastcol) = $_;
- for ($col=$firstcol;$col<=$lastcol;$col++) {
- $this->_col_sizes[$col] = $width;
- if ($format) {
- $this->_col_formats[$col] = $format;
- }
- }
- }
- ###############################################################################
- #
- # set_selection()
- #
- # Set which cell or cells are selected in a worksheet: see also the
- # function _store_selection
- #
- function set_selection() {
- $_=func_get_args();
- # Check for a cell reference in A1 notation and substitute row and column
- if (preg_match('/^\D/', $_[0])) {
- $_ = $this->_substitute_cellref($_);
- }
- $this->_selection = $_;
- }
- ###############################################################################
- #
- # freeze_panes()
- #
- # Set panes and mark them as frozen. See also _store_panes().
- #
- function freeze_panes() {
- $_=func_get_args();
- # Check for a cell reference in A1 notation and substitute row and column
- if (preg_match('/^\D/', $_[0])) {
- $_ = $this->_substitute_cellref($_);
- }
- $this->_frozen = 1;
- $this->_panes = $_;
- }
- ###############################################################################
- #
- # thaw_panes()
- #
- # Set panes and mark them as unfrozen. See also _store_panes().
- #
- function thaw_panes() {
- $_=func_get_args();
- $this->_frozen = 0;
- $this->_panes = $_;
- }
- /*
- * Set the page orientation as portrait.
- */
- function set_portrait() {
- $this->_orientation = 1;
- }
- /*
- * Set the page orientation as landscape.
- */
- function set_landscape() {
- $this->_orientation = 0;
- }
- /*
- * Set the paper type. Ex. 1 = US Letter, 9 = A4
- */
- function set_paper($type) {
- $this->_paper_size = $type;
- }
- /*
- * Set the page header caption and optional margin.
- */
- function set_header($string, $margin) {
- if (strlen($string) >= 255) {
- trigger_error("Header string must be less than 255 characters",
- E_USER_WARNING);
- return;
- }
- $this->_header = $string;
- $this->_margin_head = $margin;
- }
- /*
- * Set the page footer caption and optional margin.
- */
- function set_footer($string, $margin) {
- if (strlen($string) >= 255) {
- trigger_error("Footer string must be less than 255 characters",
- E_USER_WARNING);
- return;
- }
- $this->_footer = $string;
- $this->_margin_foot = $margin;
- }
- /*
- * Center the page horizontally.
- */
- function center_horizontally($hcenter=1) {
- $this->_hcenter = $hcenter;
- }
- /*
- * Center the page horizontally.
- */
- function center_vertically($vcenter=1) {
- $this->_vcenter = $vcenter;
- }
- /*
- * Set all the page margins to the same value in inches.
- */
- function set_margins($margin) {
- $this->set_margin_left($margin);
- $this->set_margin_right($margin);
- $this->set_margin_top($margin);
- $this->set_margin_bottom($margin);
- }
- /*
- * Set the left and right margins to the same value in inches.
- */
- function set_margins_LR($margin) {
- $this->set_margin_left($margin);
- $this->set_margin_right($margin);
- }
- /*
- * Set the top and bottom margins to the same value in inches.
- */
- function set_margins_TB($margin) {
- $this->set_margin_top($margin);
- $this->set_margin_bottom($margin);
- }
- /*
- * Set the left margin in inches.
- */
- function set_margin_left($margin=0.75) {
- $this->_margin_left = $margin;
- }
- /*
- * Set the right margin in inches.
- */
- function set_margin_right($margin=0.75) {
- $this->_margin_right = $margin;
- }
- /*
- * Set the top margin in inches.
- */
- function set_margin_top($margin=1.00) {
- $this->_margin_top = $margin;
- }
- /*
- * Set the bottom margin in inches.
- */
- function set_margin_bottom($margin=1.00) {
- $this->_margin_bottom = $margin;
- }
- ###############################################################################
- #
- # repeat_rows($first_row, $last_row)
- #
- # Set the rows to repeat at the top of each printed page. See also the
- # _store_name_xxxx() methods in Workbook.pm.
- #
- function repeat_rows() {
- $_=func_get_args();
- $this->_title_rowmin = $_[0];
- $this->_title_rowmax = isset($_[1]) ? $_[1] : $_[0]; # Second row is optional
- }
- ###############################################################################
- #
- # repeat_columns($first_col, $last_col)
- #
- # Set the columns to repeat at the left hand side of each printed page.
- # See also the _store_names() methods in Workbook.pm.
- #
- function repeat_columns() {
- $_=func_get_args();
- # Check for a cell reference in A1 notation and substitute row and column
- if (preg_match('/^\D/', $_[0])) {
- $_ = $this->_substitute_cellref($_);
- }
- $this->_title_colmin = $_[0];
- $this->_title_colmax = isset($_[1]) ? $_[1] : $_[0]; # Second col is optional
- }
- ###############################################################################
- #
- # print_area($first_row, $first_col, $last_row, $last_col)
- #
- # Set the area of each worksheet that will be printed. See also the
- # _store_names() methods in Workbook.pm.
- #
- function print_area() {
- $_=func_get_args();
- # Check for a cell reference in A1 notation and substitute row and column
- if (preg_match('/^\D/', $_[0])) {
- $_ = $this->_substitute_cellref($_);
- }
- if (sizeof($_) != 4) {
- # Require 4 parameters
- return;
- }
- $this->_print_rowmin = $_[0];
- $this->_print_colmin = $_[1];
- $this->_print_rowmax = $_[2];
- $this->_print_colmax = $_[3];
- }
- /*
- * Set the option to hide gridlines on the screen and the printed page.
- * There are two ways of doing this in the Excel BIFF format: The first
- * is by setting the DspGrid field of the WINDOW2 record, this turns off
- * the screen and subsequently the print gridline. The second method is
- * to via the PRINTGRIDLINES and GRIDSET records, this turns off the
- * printed gridlines only. The first method is probably sufficient for
- * most cases. The second method is supported for backwards compatibility.
- */
- function hide_gridlines($option=1) {
- if ($option == 0) {
- $this->_print_gridlines = 1; # 1 = display, 0 = hide
- $this->_screen_gridlines = 1;
- } elseif ($option == 1) {
- $this->_print_gridlines = 0;
- $this->_screen_gridlines = 1;
- } else {
- $this->_print_gridlines = 0;
- $this->_screen_gridlines = 0;
- }
- }
- /*
- * Set the option to print the row and column headers on the printed page.
- * See also the _store_print_headers() method below.
- */
- function print_row_col_headers($headers=1) {
- $this->_print_headers = $headers;
- }
- /*
- * Store the vertical and horizontal number of pages that will define
- * the maximum area printed. See also _store_setup() and _store_wsbool()
- * below.
- */
- function fit_to_pages($width, $height) {
- $this->_fit_page = 1;
- $this->_fit_width = $width;
- $this->_fit_height = $height;
- }
- /*
- * Store the horizontal page breaks on a worksheet.
- */
- function set_h_pagebreaks($breaks) {
- $this->_hbreaks=array_merge($this->_hbreaks, $breaks);
- }
- /*
- * Store the vertical page breaks on a worksheet.
- */
- function set_v_pagebreaks($breaks) {
- $this->_vbreaks=array_merge($this->_vbreaks, $breaks);
- }
- /*
- * Set the worksheet zoom factor.
- */
- function set_zoom($scale=100) {
- // Confine the scale to Excel's range
- if ($scale < 10 || $scale > 400) {
- trigger_error("Zoom factor $scale outside range: ".
- "10 <= zoom <= 400", E_USER_WARNING);
- $scale = 100;
- }
- $this->_zoom = $scale;
- }
- /*
- * Set the scale factor for the printed page.
- */
- function set_print_scale($scale=100) {
- // Confine the scale to Excel's range
- if ($scale < 10 || $scale > 400) {
- trigger_error("Print scale $scale outside range: ".
- "10 <= zoom <= 400", E_USER_WARNING);
- $scale = 100;
- }
- // Turn off "fit to page" option
- $this->_fit_page = 0;
- $this->_print_scale = $scale;
- }
- ###############################################################################
- #
- # write($row, $col, $token, $format)
- #
- # Parse $token call appropriate write method. $row and $column are zero
- # indexed. $format is optional.
- #
- # Returns: return value of called subroutine
- #
- function write() {
- $_=func_get_args();
- # Check for a cell reference in A1 notation and substitute row and column
- if (preg_match('/^\D/', $_[0])) {
- $_ = $this->_substitute_cellref($_);
- }
- $token = $_[2];
- # Match an array ref.
- if (is_array($token)) {
- return call_user_method_array('write_row', $this, $_);
- }
- # Match number
- if (preg_match('/^([+-]?)(?=\d|\.\d)\d*(\.\d*)?([Ee]([+-]?\d+))?$/', $token)) {
- return call_user_method_array('write_number', $this, $_);
- }
- # Match http, https or ftp URL
- elseif (preg_match('|^[fh]tt?ps?://|', $token)) {
- return call_user_method_array('write_url', $this, $_);
- }
- # Match mailto:
- elseif (preg_match('/^mailto:/', $token)) {
- return call_user_method_array('write_url', $this, $_);
- }
- # Match internal or external sheet link
- elseif (preg_match('[^(?:in|ex)ternal:]', $token)) {
- return call_user_method_array('write_url', $this, $_);
- }
- # Match formula
- elseif (preg_match('/^=/', $token)) {
- return call_user_method_array('write_formula', $this, $_);
- }
- # Match blank
- elseif ($token == '') {
- array_splice($_, 2, 1); # remove the empty string from the parameter list
- return call_user_method_array('write_blank', $this, $_);
- }
- # Default: match string
- else {
- return call_user_method_array('write_string', $this, $_);
- }
- }
- ###############################################################################
- #
- # write_row($row, $col, $array_ref, $format)
- #
- # Write a row of data starting from ($row, $col). Call write_col() if any of
- # the elements of the array ref are in turn array refs. This allows the writing
- # of 1D or 2D arrays of data in one go.
- #
- # Returns: the first encountered error value or zero for no errors
- #
- function write_row() {
- $_=func_get_args();
- # Check for a cell reference in A1 notation and substitute row and column
- if (preg_match('/^\D/', $_[0])) {
- $_ = $this->_substitute_cellref($_);
- }
- # Catch non array refs passed by user.
- if (!is_array($_[2])) {
- trigger_error("Not an array ref in call to write_row()!", E_USER_ERROR);
- }
- list($row, $col, $tokens)=array_splice($_, 0, 3);
- $options = $_[0];
- $error = 0;
- foreach ($tokens as $token) {
- # Check for nested arrays
- if (is_array($token)) {
- $ret = $this->write_col($row, $col, $token, $options);
- } else {
- $ret = $this->write ($row, $col, $token, $options);
- }
- # Return only the first error encountered, if any.
- $error = $error || $ret;
- $col++;
- }
- return $error;
- }
- ###############################################################################
- #
- # _XF()
- #
- # Returns an index to the XF record in the workbook.
- # TODO
- #
- # Note: this is a function, not a method.
- #
- function _XF($row=false, $col=false, $format=false) {
- if ($format) {
- return $format->get_xf_index();
- } elseif (isset($this->_row_formats[$row])) {
- return $this->_row_formats[$row]->get_xf_index();
- } elseif (isset($this->_col_formats[$col])) {
- return $this->_col_formats[$col]->get_xf_index();
- } else {
- return 0x0F;
- }
- }
- ###############################################################################
- #
- # write_col($row, $col, $array_ref, $format)
- #
- # Write a column of data starting from ($row, $col). Call write_row() if any of
- # the elements of the array ref are in turn array refs. This allows the writing
- # of 1D or 2D arrays of data in one go.
- #
- # Returns: the first encountered error value or zero for no errors
- #
- function write_col() {
- $_=func_get_args();
- # Check for a cell reference in A1 notation and substitute row and column
- if (preg_match('/^\D/', $_[0])) {
- $_ = $this->_substitute_cellref($_);
- }
- # Catch non array refs passed by user.
- if (!is_array($_[2])) {
- trigger_error("Not an array ref in call to write_row()!", E_USER_ERROR);
- }
- $row = array_shift($_);
- $col = array_shift($_);
- $tokens = array_shift($_);
- $options = $_;
- $error = 0;
- foreach ($tokens as $token) {
- # write() will deal with any nested arrays
- $ret = $this->write($row, $col, $token, $options);
- # Return only the first error encountered, if any.
- $error = $error || $ret;
- $row++;
- }
- return $error;
- }
- ###############################################################################
- ###############################################################################
- #
- # Internal methods
- #
- ###############################################################################
- #
- # _append(), overloaded.
- #
- # Store Worksheet data in memory using the base class _append() or to a
- # temporary file, the default.
- #
- function _append($data) {
- if (func_num_args()>1) {
- trigger_error("writeexcel_worksheet::_append() ".
- "called with more than one argument", E_USER_ERROR);
- }
- if ($this->_using_tmpfile) {
- if ($this->_debug) {
- print "worksheet::_append() called:";
- for ($c=0;$c<strlen($data);$c++) {
- if ($c%16==0) {
- print "\n";
- }
- printf("%02X ", ord($data[$c]));
- }
- print "\n";
- }
- # Add CONTINUE records if necessary
- if (strlen($data) > $this->_limit) {
- $data = $this->_add_continue($data);
- }
- fputs($this->_filehandle, $data);
- $this->_datasize += strlen($data);
- } else {
- parent::_append($data);
- }
- }
- ###############################################################################
- #
- # _substitute_cellref()
- #
- # Substitute an Excel cell reference in A1 notation for zero based row and
- # column values in an argument list.
- #
- # Ex: ("A4", "Hello") is converted to (3, 0, "Hello").
- #
- // Exactly one array must be passed!
- function _substitute_cellref($_) {
- $cell = strtoupper(array_shift($_));
- # Convert a column range: 'A:A' or 'B:G'
- if (preg_match('/([A-I]?[A-Z]):([A-I]?[A-Z])/', $cell, $reg)) {
- list($dummy, $col1) = $this->_cell_to_rowcol($reg[1] .'1'); # Add a dummy row
- list($dummy, $col2) = $this->_cell_to_rowcol($reg[2] .'1'); # Add a dummy row
- return array_merge(array($col1, $col2), $_);
- }
- # Convert a cell range: 'A1:B7'
- if (preg_match('/\$?([A-I]?[A-Z]\$?\d+):\$?([A-I]?[A-Z]\$?\d+)/', $cell, $reg)) {
- list($row1, $col1) = $this->_cell_to_rowcol($reg[1]);
- list($row2, $col2) = $this->_cell_to_rowcol($reg[2]);
- return array_merge(array($row1, $col1, $row2, $col2), $_);
- }
- # Convert a cell reference: 'A1' or 'AD2000'
- if (preg_match('/\$?([A-I]?[A-Z]\$?\d+)/', $cell, $reg)) {
- list($row1, $col1) = $this->_cell_to_rowcol($reg[1]);
- return array_merge(array($row1, $col1), $_);
- }
- trigger_error("Unknown cell reference $cell", E_USER_ERROR);
- }
- ###############################################################################
- #
- # _cell_to_rowcol($cell_ref)
- #
- # Convert an Excel cell reference in A1 notation to a zero based row and column
- # reference; converts C1 to (0, 2).
- #
- # Returns: row, column
- #
- # TODO use functions in Utility.pm
- #
- function _cell_to_rowcol($cell) {
- preg_match('/\$?([A-I]?[A-Z])\$?(\d+)/', $cell, $reg);
- $col = $reg[1];
- $row = $reg[2];
- # Convert base26 column string to number
- # All your Base are belong to us.
- $chars = preg_split('//', $col, -1, PREG_SPLIT_NO_EMPTY);
- $expn = 0;
- $col = 0;
- while (sizeof($chars)) {
- $char = array_pop($chars); # LS char first
- $col += (ord($char) -ord('A') +1) * pow(26, $expn);
- $expn++;
- }
- # Convert 1-index to zero-index
- $row--;
- $col--;
- return array($row, $col);
- }
- /*
- * This is an internal method that is used to filter elements of the
- * array of pagebreaks used in the _store_hbreak() and _store_vbreak()
- * methods. It:
- * 1. Removes duplicate entries from the list.
- * 2. Sorts the list.
- * 3. Removes 0 from the list if present.
- */
- function _sort_pagebreaks($breaks) {
- // Hash slice to remove duplicates
- foreach ($breaks as $break) {
- $hash["$break"]=1;
- }
- // Numerical sort
- $breaks=array_keys($hash);
- sort($breaks, SORT_NUMERIC);
- // Remove zero
- if ($breaks[0] == 0) {
- array_shift($breaks);
- }
- // 1000 vertical pagebreaks appears to be an internal Excel 5 limit.
- // It is slightly higher in Excel 97/200, approx. 1026
- if (sizeof($breaks) > 1000) {
- array_splice($breaks, 1000);
- }
- return $breaks;
- }
- /*
- * Based on the algorithm provided by Daniel Rentz of OpenOffice.
- */
- function _encode_password($plaintext) {
- $chars=preg_split('//', $plaintext, -1, PREG_SPLIT_NO_EMPTY);
- $count=sizeof($chars);
- for ($c=0;$c<sizeof($chars);$c++) {
- $char=&$chars[$c];
- $char = ord($char) << ++$i;
- $low_15 = $char & 0x7fff;
- $high_15 = $char & 0x7fff << 15;
- $high_15 = $high_15 >> 15;
- $char = $low_15 | $high_15;
- }
- $password = 0x0000;
- foreach ($chars as $char) {
- $password ^= $char;
- }
- $password ^= $count;
- $password ^= 0xCE4B;
- return $password;
- }
- ###############################################################################
- ###############################################################################
- #
- # BIFF RECORDS
- #
- ###############################################################################
- #
- # write_number($row, $col, $num, $format)
- #
- # Write a double to the specified row and column (zero indexed).
- # An integer can be written as a double. Excel will display an
- # integer. $format is optional.
- #
- # Returns 0 : normal termination
- # -1 : insufficient number of arguments
- # -2 : row or column out of range
- #
- function write_number() {
- $_=func_get_args();
- # Check for a cell reference in A1 notation and substitute row and column
- if (preg_match('/^\D/', $_[0])) {
- $_ = $this->_substitute_cellref($_);
- }
- # Check the number of args
- if (sizeof($_) < 3) {
- return -1;
- }
- $record = 0x0203; # Record identifier
- $length = 0x000E; # Number of bytes to follow
- $row = $_[0]; # Zero indexed row
- $col = $_[1]; # Zero indexed column
- $num = $_[2];
- //!!!
- $xf = $this->_XF($row, $col, $_[3]); # The cell format
- # Check that row and col are valid and store max and min values
- if ($row >= $this->_xls_rowmax) { return -2; }
- if ($col >= $this->_xls_colmax) { return -2; }
- if ($row < $this->_dim_rowmin) { $this->_dim_rowmin = $row; }
- if ($row > $this->_dim_rowmax) { $this->_dim_rowmax = $row; }
- if ($col < $this->_dim_colmin) { $this->_dim_colmin = $col; }
- if ($col > $this->_dim_colmax) { $this->_dim_colmax = $col; }
- $header = pack("vv", $record, $length);
- $data = pack("vvv", $row, $col, $xf);
- $xl_double = pack("d", $num);
- if ($this->_byte_order) {
- //TODO
- $xl_double = strrev($xl_double);
- }
- $this->_append($header . $data . $xl_double);
- return 0;
- }
- ###############################################################################
- #
- # write_string ($row, $col, $string, $format)
- #
- # Write a string to the specified row and column (zero indexed).
- # NOTE: there is an Excel 5 defined limit of 255 characters.
- # $format is optional.
- # Returns 0 : normal termination
- # -1 : insufficient number of arguments
- # -2 : row or column out of range
- # -3 : long string truncated to 255 chars
- #
- function write_string() {
- $_=func_get_args();
- # Check for a cell reference in A1 notation and substitute row and column
- if (preg_match('/^\D/', $_[0])) {
- $_ = $this->_substitute_cellref($_);
- }
- # Check the number of args
- if (sizeof($_) < 3) {
- return -1;
- }
- $record = 0x0204; # Record identifier
- $length = 0x0008 + strlen($_[2]); # Bytes to follow
- $row = $_[0]; # Zero indexed row
- $col = $_[1]; # Zero indexed column
- $strlen = strlen($_[2]);
- $str = $_[2];
- $xf = $this->_XF($row, $col, $_[3]); # The cell format
- $str_error = 0;
- # Check that row and col are valid and store max and min values
- if ($row >= $this->_xls_rowmax) { return -2; }
- if ($col >= $this->_xls_colmax) { return -2; }
- if ($row < $this->_dim_rowmin) { $this->_dim_rowmin = $row; }
- if ($row > $this->_dim_rowmax) { $this->_dim_rowmax = $row; }
- if ($col < $this->_dim_colmin) { $this->_dim_colmin = $col; }
- if ($col > $this->_dim_colmax) { $this->_dim_colmax = $col; }
- if ($strlen > $this->_xls_strmax) { # LABEL must be < 255 chars
- $str = substr($str, 0, $this->_xls_strmax);
- $length = 0x0008 + $this->_xls_strmax;
- $strlen = $this->_xls_strmax;
- $str_error = -3;
- }
- $header = pack("vv", $record, $length);
- $data = pack("vvvv", $row, $col, $xf, $strlen);
- $this->_append($header . $data . $str);
- return $str_error;
- }
- ###############################################################################
- #
- # write_blank($row, $col, $format)
- #
- # Write a blank cell to the specified row and column (zero indexed).
- # A blank cell is used to specify formatting without adding a string
- # or a number.
- #
- # A blank cell without a format serves no purpose. Therefore, we don't write
- # a BLANK record unless a format is specified. This is mainly an optimisation
- # for the write_row() and write_col() methods.
- #
- # Returns 0 : normal termination (including no format)
- # -1 : insufficient number of arguments
- # -2 : row or column out of range
- #
- function write_blank() {
- $_=func_get_args();
- # Check for a cell reference in A1 notation and substitute row and column
- if (preg_match('/^\D/', $_[0])) {
- $_ = $this->_substitute_cellref($_);
- }
- # Check the number of args
- if (sizeof($_) < 2) {
- return -1;
- }
- # Don't write a blank cell unless it has a format
- if (!isset($_[2])) {
- return 0;
- }
- $record = 0x0201; # Record identifier
- $length = 0x0006; # Number of bytes to follow
- $row = $_[0]; # Zero indexed row
- $col = $_[1]; # Zero indexed column
- $xf = $this->_XF($row, $col, $_[2]); # The cell format
- # Check that row and col are valid and store max and min values
- if ($row >= $this->_xls_rowmax) { return -2; }
- if ($col >= $this->_xls_colmax) { return -2; }
- if ($row < $this->_dim_rowmin) { $this->_dim_rowmin = $row; }
- if ($row > $this->_dim_rowmax) { $this->_dim_rowmax = $row; }
- if ($col < $this->_dim_colmin) { $this->_dim_colmin = $col; }
- if ($col > $this->_dim_colmax) { $this->_dim_colmax = $col; }
- $header = pack("vv", $record, $length);
- $data = pack("vvv", $row, $col, $xf);
- $this->_append($header . $data);
- return 0;
- }
- ###############################################################################
- #
- # write_formula($row, $col, $formula, $format)
- #
- # Write a formula to the specified row and column (zero indexed).
- # The textual representation of the formula is passed to the parser in
- # Formula.pm which returns a packed binary string.
- #
- # $format is optional.
- #
- # Returns 0 : normal termination
- # -1 : insufficient number of arguments
- # -2 : row or column out of range
- #
- function write_formula() {
- $_=func_get_args();
- # Check for a cell reference in A1 notation and substitute row and column
- if (preg_match('/^\D/', $_[0])) {
- $_ = $this->_substitute_cellref($_);
- }
- # Check the number of args
- if (sizeof($_) < 3) {
- return -1;
- }
- $record = 0x0006; # Record identifier
- $length=0; # Bytes to follow
- $row = $_[0]; # Zero indexed row
- $col = $_[1]; # Zero indexed column
- $formula = $_[2]; # The formula text string
- # Excel normally stores the last calculated value of the formula in $num.
- # Clearly we are not in a position to calculate this a priori. Instead
- # we set $num to zero and set the option flags in $grbit to ensure
- # automatic calculation of the formula when the file is opened.
- #
- $xf = $this->_XF($row, $col, $_[3]); # The cell format
- $num = 0x00; # Current value of formula
- $grbit = 0x03; # Option flags
- $chn = 0x0000; # Must be zero
- # Check that row and col are valid and store max and min values
- if ($row >= $this->_xls_rowmax) { return -2; }
- if ($col >= $this->_xls_colmax) { return -2; }
- if ($row < $this->_dim_rowmin) { $this->_dim_rowmin = $row; }
- if ($row > $this->_dim_rowmax) { $this->_dim_rowmax = $row; }
- if ($col < $this->_dim_colmin) { $this->_dim_colmin = $col; }
- if ($col > $this->_dim_colmax) { $this->_dim_colmax = $col; }
- # Strip the = sign at the beginning of the formula string
- $formula = preg_replace('/^=/', "", $formula);
- # Parse the formula using the parser in Formula.pm
- $parser =& $this->_parser;
- $formula = $parser->parse_formula($formula);
- $formlen = strlen($formula); # Length of the binary string
- $length = 0x16 + $formlen; # Length of the record data
- $header = pack("vv", $record, $length);
- $data = pack("vvvdvVv", $row, $col, $xf, $num,
- $grbit, $chn, $formlen);
- $this->_append($header . $data . $formula);
- return 0;
- }
- ###############################################################################
- #
- # write_url($row, $col, $url, $string, $format)
- #
- # Write a hyperlink. This is comprised of two elements: the visible label and
- # the invisible link. The visible label is the same as the link unless an
- # alternative string is specified. The label is written using the
- # write_string() method. Therefore the 255 characters string limit applies.
- # $string and $format are optional and their order is interchangeable.
- #
- # The hyperlink can be to a http, ftp, mail, internal sheet, or external
- # directory url.
- #
- # Returns 0 : normal termination
- # -1 : insufficient number of arguments
- # -2 : row or column out of range
- # -3 : long string truncated to 255 chars
- #
- function write_url() {
- $_=func_get_args();
- # Check for a cell reference in A1 notation and substitute row and column
- if (preg_match('/^\D/', $_[0])) {
- $_ = $this->_substitute_cellref($_);
- }
- # Check the number of args
- if (sizeof($_) < 3) {
- return -1;
- }
- # Add start row and col to arg list
- return call_user_method_array('write_url_range', $this,
- array_merge(array($_[0], $_[1]), $_));
- }
- ###############################################################################
- #
- # write_url_range($row1, $col1, $row2, $col2, $url, $string, $format)
- #
- # This is the more general form of write_url(). It allows a hyperlink to be
- # written to a range of cells. This function also decides the type of hyperlink
- # to be written. These are either, Web (http, ftp, mailto), Internal
- # (Sheet1!A1) or external ('c:\temp\foo.xls#Sheet1!A1').
- #
- # See also write_url() above for a general description and return values.
- #
- function write_url_range() {
- $_=func_get_args();
- # Check for a cell reference in A1 notation and substitute row and column
- if (preg_match('/^\D/', $_[0])) {
- $_ = $this->_substitute_cellref($_);
- }
- # Check the number of args
- if (sizeof($_) < 5) {
- return -1;
- }
- # Reverse the order of $string and $format if necessary.
- //TODO ($_[5], $_[6]) = ($_[6], $_[5]) if (ref $_[5]);
- $url = $_[4];
- # Check for internal/external sheet links or default to web link
- if (preg_match('[^internal:]', $url)) {
- return call_user_method_array('_write_url_internal', $this, $_);
- }
- if (preg_match('[^external:]', $url)) {
- return call_user_method_array('_write_url_external', $this, $_);
- }
- return call_user_method_array('_write_url_web', $this, $_);
- }
- ###############################################################################
- #
- # _write_url_web($row1, $col1, $row2, $col2, $url, $string, $format)
- #
- # Used to write http, ftp and mailto hyperlinks.
- # The link type ($options) is 0x03 is the same as absolute dir ref without
- # sheet. However it is differentiated by the $unknown2 data stream.
- #
- # See also write_url() above for a general description and return values.
- #
- function _write_url_web() {
- $_=func_get_args();
- $record = 0x01B8; # Record identifier
- $length = 0x00000; # Bytes to follow
- $row1 = $_[0]; # Start row
- $col1 = $_[1]; # Start column
- $row2 = $_[2]; # End row
- $col2 = $_[3]; # End column
- $url = $_[4]; # URL string
- if (isset($_[5])) {
- $str = $_[5]; # Alternative label
- }
- $xf = $_[6] ? $_[6] : $this->_url_format; # The cell format
- # Write the visible label using the write_string() method.
- if(!isset($str)) {
- $str = $url;
- }
- $str_error = $this->write_string($row1, $col1, $str, $xf);
- if ($str_error == -2) {
- return $str_error;
- }
- # Pack the undocumented parts of the hyperlink stream
- $unknown1 = pack("H*", "D0C9EA79F9BACE118C8200AA004BA90B02000000");
- $unknown2 = pack("H*", "E0C9EA79F9BACE118C8200AA004BA90B");
- # Pack the option flags
- $options = pack("V", 0x03);
- # Convert URL to a null terminated wchar string
- $url = join("\0", preg_split("''", $url, -1, PREG_SPLIT_NO_EMPTY));
- $url = $url . "\0\0\0";
- # Pack the length of the URL
- $url_len = pack("V", strlen($url));
- # Calculate the data length
- $length = 0x34 + strlen($url);
- # Pack the header data
- $header = pack("vv", $record, $length);
- $data = pack("vvvv", $row1, $row2, $col1, $col2);
- # Write the packed data
- $this->_append($header.
- $data.
- $unknown1.
- $options.
- $unknown2.
- $url_len.
- $url);
- return $str_error;
- }
- ###############################################################################
- #
- # _write_url_internal($row1, $col1, $row2, $col2, $url, $string, $format)
- #
- # Used to write internal reference hyperlinks such as "Sheet1!A1".
- #
- # See also write_url() above for a general description and return values.
- #
- function _write_url_internal() {
- $_=func_get_args();
- $record = 0x01B8; # Record identifier
- $length = 0x00000; # Bytes to follow
- $row1 = $_[0]; # Start row
- $col1 = $_[1]; # Start column
- $row2 = $_[2]; # End row
- $col2 = $_[3]; # End column
- $url = $_[4]; # URL string
- if (isset($_[5])) {
- $str = $_[5]; # Alternative label
- }
- $xf = $_[6] ? $_[6] : $this->_url_format; # The cell format
- # Strip URL type
- $url = preg_replace('s[^internal:]', '', $url);
- # Write the visible label
- if (!isset($str)) {
- $str = $url;
- }
- $str_error = $this->write_string($row1, $col1, $str, $xf);
- if ($str_error == -2) {
- return $str_error;
- }
- # Pack the undocumented parts of the hyperlink stream
- $unknown1 = pack("H*", "D0C9EA79F9BACE118C8200AA004BA90B02000000");
- # Pack the option flags
- $options = pack("V", 0x08);
- # Convert the URL type and to a null terminated wchar string
- $url = join("\0", preg_split("''", $url, -1, PREG_SPLIT_NO_EMPTY));
- $url = $url . "\0\0\0";
- # Pack the length of the URL as chars (not wchars)
- $url_len = pack("V", int(strlen($url)/2));
- # Calculate the data length
- $length = 0x24 + strlen($url);
- # Pack the header data
- $header = pack("vv", $record, $length);
- $data = pack("vvvv", $row1, $row2, $col1, $col2);
- # Write the packed data
- $this->_append($header.
- $data.
- $unknown1.
- $options.
- $url_len.
- $url);
- return $str_error;
- }
- ###############################################################################
- #
- # _write_url_external($row1, $col1, $row2, $col2, $url, $string, $format)
- #
- # Write links to external directory names such as 'c:\foo.xls',
- # c:\foo.xls#Sheet1!A1', '../../foo.xls'. and '../../foo.xls#Sheet1!A1'.
- #
- # Note: Excel writes some relative links with the $dir_long string. We ignore
- # these cases for the sake of simpler code.
- #
- # See also write_url() above for a general description and return values.
- #
- function _write_url_external() {
- $_=func_get_args();
- # Network drives are different. We will handle them separately
- # MS/Novell network drives and shares start with \\
- if (preg_match('[^external:\\\\]', $_[4])) {
- return call_user_method_array('_write_url_external_net', $this, $_);
- }
- $record = 0x01B8; # Record identifier
- $length = 0x00000; # Bytes to follow
- $row1 = $_[0]; # Start row
- $col1 = $_[1]; # Start column
- $row2 = $_[2]; # End row
- $col2 = $_[3]; # End column
- $url = $_[4]; # URL string
- if (isset($_[5])) {
- $str = $_[5]; # Alternative label
- }
- $xf = $_[6] ? $_[6] : $this->_url_format; # The cell format
- # Strip URL type and change Unix dir separator to Dos style (if needed)
- #
- $url = preg_replace('[^external:]', '', $url);
- $url = preg_replace('[/]', "\\", $url);
- # Write the visible label
- if (!isset($str)) {
- $str = preg_replace('[\#]', ' - ', $url);
- }
- $str_error = $this->write_string($row1, $col1, $str, $xf);
- if ($str_error == -2) {
- return $str_error;
- }
- # Determine if the link is relative or absolute:
- # relative if link contains no dir separator, "somefile.xls"
- # relative if link starts with up-dir, "..\..\somefile.xls"
- # otherwise, absolute
- #
- $absolute = 0x02; # Bit mask
- if (!preg_match('[\\]', $url)) {
- $absolute = 0x00;
- }
- if (preg_match('[^\.\.\\]', $url)) {
- $absolute = 0x00;
- }
- # Determine if the link contains a sheet reference and change some of the
- # parameters accordingly.
- # Split the dir name and sheet name (if it exists)
- #
- list($dir_long, $sheet) = preg_split('/\#/', $url);
- $link_type = 0x01 | $absolute;
- //!!!
- if (isset($sheet)) {
- $link_type |= 0x08;
- $sheet_len = pack("V", length($sheet) + 0x01);
- $sheet = join("\0", split('', $sheet));
- $sheet .= "\0\0\0";
- } else {
- $sheet_len = '';
- $sheet = '';
- }
- # Pack the link type
- $link_type = pack("V", $link_type);
- # Calculate the up-level dir count e.g.. (..\..\..\ == 3)
- /* TODO
- $up_count = 0;
- $up_count++ while $dir_long =~ s[^\.\.\\][];
- $up_count = pack("v", $up_count);
- */
- # Store the short dos dir name (null terminated)
- $dir_short = $dir_long . "\0";
- # Store the long dir name as a wchar string (non-null terminated)
- $dir_long = join("\0", preg_split('', $dir_long, -1, PREG_SPLIT_NO_EMPTY));
- $dir_long = $dir_long . "\0";
- # Pack the lengths of the dir strings
- $dir_short_len = pack("V", strlen($dir_short) );
- $dir_long_len = pack("V", strlen($dir_long) );
- $stream_len = pack("V", strlen($dir_long) + 0x06);
- # Pack the undocumented parts of the hyperlink stream
- $unknown1 =pack("H*",'D0C9EA79F9BACE118C8200AA004BA90B02000000' );
- $unknown2 =pack("H*",'0303000000000000C000000000000046' );
- $unknown3 =pack("H*",'FFFFADDE000000000000000000000000000000000000000');
- $unknown4 =pack("v", 0x03 );
- # Pack the main data stream
- $data = pack("vvvv", $row1, $row2, $col1, $col2) .
- $unknown1 .
- $link_type .
- $unknown2 .
- $up_count .
- $dir_short_len.
- $dir_short .
- $unknown3 .
- $stream_len .
- $dir_long_len .
- $unknown4 .
- $dir_long .
- $sheet_len .
- $sheet ;
- # Pack the header data
- $length = strlen($data);
- $header = pack("vv", $record, $length);
- # Write the packed data
- $this->_append($header . $data);
- return $str_error;
- }
- ###############################################################################
- #
- # write_url_xxx($row1, $col1, $row2, $col2, $url, $string, $format)
- #
- # Write links to external MS/Novell network drives and shares such as
- # '//NETWORK/share/foo.xls' and '//NETWORK/share/foo.xls#Sheet1!A1'.
- #
- # See also write_url() above for a general description and return values.
- #
- function _write_url_external_net() {
- $_=func_get_args();
- $record = 0x01B8; # Record identifier
- $length = 0x00000; # Bytes to follow
- $row1 = $_[0]; # Start row
- $col1 = $_[1]; # Start column
- $row2 = $_[2]; # End row
- $col2 = $_[3]; # End column
- $url = $_[4]; # URL string
- if(isset($_[5])) {
- $str = $_[5]; # Alternative label
- }
- $xf = $_[6] ? $_[6] : $this->_url_format; # The cell format
- # Strip URL type and change Unix dir separator to Dos style (if needed)
- #
- $url = preg_replace('[^external:]', "", $url);
- $url = preg_replace('[/]', "\\");
- # Write the visible label
- if (!isset($str)) {
- $str = preg_replace('[\#]', " - ", $url);
- }
- $str_error = $this->write_string($row1, $col1, $str, $xf);
- if ($str_error == -2) {
- return $str_error;
- }
- # Determine if the link contains a sheet reference and change some of the
- # parameters accordingly.
- # Split the dir name and sheet name (if it exists)
- #
- list($dir_long , $sheet) = preg_split('\#', $url);
- $link_type = 0x0103; # Always absolute
- //!!!
- if (isset($sheet)) {
- $link_type |= 0x08;
- $sheet_len = pack("V", strlen($sheet) + 0x01);
- $sheet = join("\0", preg_split("''", $sheet, -1, PREG_SPLIT_NO_EMPTY));
- $sheet .= "\0\0\0";
- } else {
- $sheet_len = '';
- $sheet = '';
- }
- # Pack the link type
- $link_type = pack("V", $link_type);
- # Make the string null terminated
- $dir_long = $dir_long . "\0";
- # Pack the lengths of the dir string
- $dir_long_len = pack("V", strlen($dir_long));
- # Store the long dir name as a wchar string (non-null terminated)
- $dir_long = join("\0", preg_split("''", $dir_long, -1, PREG_SPLIT_NO_EMPTY));
- $dir_long = $dir_long . "\0";
- # Pack the undocumented part of the hyperlink stream
- $unknown1 = pack("H*",'D0C9EA79F9BACE118C8200AA004BA90B02000000');
- # Pack the main data stream
- $data = pack("vvvv", $row1, $row2, $col1, $col2) .
- $unknown1 .
- $link_type .
- $dir_long_len .
- $dir_long .
- $sheet_len .
- $sheet ;
- # Pack the header data
- $length = strlen($data);
- $header = pack("vv", $record, $length);
- # Write the packed data
- $this->_append($header . $data);
- return $str_error;
- }
- ###############################################################################
- #
- # set_row($row, $height, $XF)
- #
- # This method is used to set the height and XF format for a row.
- # Writes the BIFF record ROW.
- #
- function set_row() {
- $_=func_get_args();
- $record = 0x0208; # Record identifier
- $length = 0x0010; # Number of bytes to follow
- $rw = $_[0]; # Row Number
- $colMic = 0x0000; # First defined column
- $colMac = 0x0000; # Last defined column
- //$miyRw; # Row height
- $irwMac = 0x0000; # Used by Excel to optimise loading
- $reserved = 0x0000; # Reserved
- $grbit = 0x01C0; # Option flags. (monkey) see $1 do
- //$ixfe; # XF index
- if (isset($_[2])) {
- $format = $_[2]; # Format object
- }
- # Check for a format object
- if (isset($_[2])) {
- $ixfe = $format->get_xf_index();
- } else {
- $ixfe = 0x0F;
- }
- # Use set_row($row, undef, $XF) to set XF without setting height
- if (isset($_[1])) {
- $miyRw = $_[1] *20;
- } else {
- $miyRw = 0xff;
- }
- $header = pack("vv", $record, $length);
- $data = pack("vvvvvvvv", $rw, $colMic, $colMac, $miyRw,
- $irwMac,$reserved, $grbit, $ixfe);
- $this->_append($header . $data);
- # Store the row sizes for use when calculating image vertices.
- # Also store the column formats.
- #
- # Ensure at least $row and $height
- if (sizeof($_) < 2) {
- return;
- }
- $this->_row_sizes[$_[0]] = $_[1];
- if (isset($_[2])) {
- $this->_row_formats[$_[0]] = $_[2];
- }
- }
- /*
- * Writes Excel DIMENSIONS to define the area in which there is data.
- */
- function _store_dimensions() {
- $record = 0x0000; // Record identifier
- $length = 0x000A; // Number of bytes to follow
- $row_min = $this->_dim_rowmin; // First row
- $row_max = $this->_dim_rowmax; // Last row plus 1
- $col_min = $this->_dim_colmin; // First column
- $col_max = $this->_dim_colmax; // Last column plus 1
- $reserved = 0x0000; // Reserved by Excel
- $header = pack("vv", $record, $length);
- $data = pack("vvvvv", $row_min, $row_max,
- $col_min, $col_max, $reserved);
- $this->_prepend($header . $data);
- }
- /*
- * Write BIFF record Window2.
- */
- function _store_window2() {
- $record = 0x023E; // Record identifier
- $length = 0x000A; // Number of bytes to follow
- $grbit = 0x00B6; // Option flags
- $rwTop = 0x0000; // Top row visible in window
- $colLeft = 0x0000; // Leftmost column visible in window
- $rgbHdr = 0x00000000; // Row/column heading and gridline
- // color
- // The options flags that comprise $grbit
- $fDspFmla = 0; // 0 - bit
- $fDspGrid = $this->_screen_gridlines; // 1
- $fDspRwCol = 1; // 2
- $fFrozen = $this->_frozen; // 3
- $fDspZeros = 1; // 4
- $fDefaultHdr = 1; // 5
- $fArabic = 0; // 6
- $fDspGuts = 1; // 7
- $fFrozenNoSplit = 0; // 0 - bit
- $fSelected = $this->_selected; // 1
- $fPaged = 1; // 2
- $grbit = $fDspFmla;
- $grbit |= $fDspGrid << 1;
- $grbit |= $fDspRwCol << 2;
- $grbit |= $fFrozen << 3;
- $grbit |= $fDspZeros << 4;
- $grbit |= $fDefaultHdr << 5;
- $grbit |= $fArabic << 6;
- $grbit |= $fDspGuts << 7;
- $grbit |= $fFrozenNoSplit << 8;
- $grbit |= $fSelected << 9;
- $grbit |= $fPaged << 10;
- $header = pack("vv", $record, $length);
- $data = pack("vvvV", $grbit, $rwTop, $colLeft, $rgbHdr);
- $this->_append($header . $data);
- }
- /*
- * Write BIFF record DEFCOLWIDTH if COLINFO records are in use.
- */
- function _store_defcol() {
- $record = 0x0055; // Record identifier
- $length = 0x0002; // Number of bytes to follow
- $colwidth = 0x0008; // Default column width
- $header = pack("vv", $record, $length);
- $data = pack("v", $colwidth);
- $this->_prepend($header . $data);
- }
- ###############################################################################
- #
- # _store_colinfo($firstcol, $lastcol, $width, $format, $hidden)
- #
- # Write BIFF record COLINFO to define column widths
- #
- # Note: The SDK says the record length is 0x0B but Excel writes a 0x0C
- # length record.
- #
- function _store_colinfo($_) {
- $record = 0x007D; # Record identifier
- $length = 0x000B; # Number of bytes to follow
- $colFirst = $_[0] ? $_[0] : 0; # First formatted column
- $colLast = $_[1] ? $_[1] : 0; # Last formatted column
- $coldx = $_[2] ? $_[2] : 8.43; # Col width, 8.43 is Excel default
- $coldx += 0.72; # Fudge. Excel subtracts 0.72 !?
- $coldx *= 256; # Convert to units of 1/256 of a char
- //$ixfe; # XF index
- $grbit = $_[4] || 0; # Option flags
- $reserved = 0x00; # Reserved
- $format = $_[3]; # Format object
- # Check for a format object
- if (isset($_[3])) {
- $ixfe = $format->get_xf_index();
- } else {
- $ixfe = 0x0F;
- }
- $header = pack("vv", $record, $length);
- $data = pack("vvvvvC", $colFirst, $colLast, $coldx,
- $ixfe, $grbit, $reserved);
- $this->_prepend($header . $data);
- }
- ###############################################################################
- #
- # _store_selection($first_row, $first_col, $last_row, $last_col)
- #
- # Write BIFF record SELECTION.
- #
- function _store_selection($_) {
- $record = 0x001D; # Record identifier
- $length = 0x000F; # Number of bytes to follow
- $pnn = $this->_active_pane; # Pane position
- $rwAct = $_[0]; # Active row
- $colAct = $_[1]; # Active column
- $irefAct = 0; # Active cell ref
- $cref = 1; # Number of refs
- $rwFirst = $_[0]; # First row in reference
- $colFirst = $_[1]; # First col in reference
- $rwLast = $_[2] ? $_[2] : $rwFirst; # Last row in reference
- $colLast = $_[3] ? $_[3] : $colFirst; # Last col in reference
- # Swap last row/col for first row/col as necessary
- if ($rwFirst > $rwLast) {
- list($rwFirst, $rwLast) = array($rwLast, $rwFirst);
- }
- if ($colFirst > $colLast) {
- list($colFirst, $colLast) = array($colLast, $colFirst);
- }
- $header = pack("vv", $record, $length);
- $data = pack("CvvvvvvCC", $pnn, $rwAct, $colAct,
- $irefAct, $cref,
- $rwFirst, $rwLast,
- $colFirst, $colLast);
- $this->_append($header . $data);
- }
- /*
- * Write BIFF record EXTERNCOUNT to indicate the number of external
- * sheet references in a worksheet.
- *
- * Excel only stores references to external sheets that are used in
- * formulas. For simplicity we store references to all the sheets in
- * the workbook regardless of whether they are used or not. This reduces
- * the overall complexity and eliminates the need for a two way dialogue
- * between the formula parser the worksheet objects.
- */
- function _store_externcount($cxals) {
- // $cxals Number of external references
- $record = 0x0016; // Record identifier
- $length = 0x0002; // Number of bytes to follow
- $header = pack("vv", $record, $length);
- $data = pack("v", $cxals);
- $this->_prepend($header . $data);
- }
- /*
- * Writes the Excel BIFF EXTERNSHEET record. These references are used
- * by formulas. A formula references a sheet name via an index. Since we
- * store a reference to all of the external worksheets the EXTERNSHEET
- * index is the same as the worksheet index.
- */
- function _store_externsheet($sheetname) {
- $record = 0x0017; # Record identifier
- // $length Number of bytes to follow
- // $cch Length of sheet name
- // $rgch Filename encoding
- // References to the current sheet are encoded differently to
- // references to external sheets.
- if ($this->_name == $sheetname) {
- $sheetname = '';
- $length = 0x02; // The following 2 bytes
- $cch = 1; // The following byte
- $rgch = 0x02; // Self reference
- } else {
- $length = 0x02 + strlen($sheetname);
- $cch = strlen($sheetname);
- $rgch = 0x03; // Reference to a sheet in the current
- // workbook
- }
- $header = pack("vv", $record, $length);
- $data = pack("CC", $cch, $rgch);
- $this->_prepend($header . $data . $sheetname);
- }
- ###############################################################################
- #
- # _store_panes()
- #
- #
- # Writes the Excel BIFF PANE record.
- # The panes can either be frozen or thawed (unfrozen).
- # Frozen panes are specified in terms of a integer number of rows and columns.
- # Thawed panes are specified in terms of Excel's units for rows and columns.
- #
- function _store_panes() {
- $_=func_get_args();
- $record = 0x0041; # Record identifier
- $length = 0x000A; # Number of bytes to follow
- $y = $_[0] || 0; # Vertical split position
- $x = $_[1] || 0; # Horizontal split position
- if (isset($_[2])) {
- $rwTop = $_[2]; # Top row visible
- }
- if (isset($_[3])) {
- $colLeft = $_[3]; # Leftmost column visible
- }
- if (isset($_[4])) {
- $pnnAct = $_[4]; # Active pane
- }
- # Code specific to frozen or thawed panes.
- if ($this->_frozen) {
- # Set default values for $rwTop and $colLeft
- if (!isset($rwTop)) {
- $rwTop = $y;
- }
- if (!isset($colLeft)) {
- $colLeft = $x;
- }
- } else {
- # Set default values for $rwTop and $colLeft
- if (!isset($rwTop)) {
- $rwTop = 0;
- }
- if (!isset($colLeft)) {
- $colLeft = 0;
- }
- # Convert Excel's row and column units to the internal units.
- # The default row height is 12.75
- # The default column width is 8.43
- # The following slope and intersection values were interpolated.
- #
- $y = 20*$y + 255;
- $x = 113.879*$x + 390;
- }
- # Determine which pane should be active. There is also the undocumented
- # option to override this should it be necessary: may be removed later.
- #
- if (!isset($pnnAct)) {
- # Bottom right
- if ($x != 0 && $y != 0) {
- $pnnAct = 0;
- }
- # Top right
- if ($x != 0 && $y == 0) {
- $pnnAct = 1;
- }
- # Bottom left
- if ($x == 0 && $y != 0) {
- $pnnAct = 2;
- }
- # Top left
- if ($x == 0 && $y == 0) {
- $pnnAct = 3;
- }
- }
- $this->_active_pane = $pnnAct; # Used in _store_selection
- $header = pack("vv", $record, $length);
- $data = pack("vvvvv", $x, $y, $rwTop, $colLeft, $pnnAct);
- $this->_append($header . $data);
- }
- /*
- * Store the page setup SETUP BIFF record.
- */
- function _store_setup() {
- $record = 0x00A1; // Record identifier
- $length = 0x0022; // Number of bytes to follow
- $iPaperSize = $this->_paper_size; // Paper size
- $iScale = $this->_print_scale; // Print scaling factor
- $iPageStart = 0x01; // Starting page number
- $iFitWidth = $this->_fit_width; // Fit to number of pages wide
- $iFitHeight = $this->_fit_height; // Fit to number of pages high
- $grbit = 0x00; // Option flags
- $iRes = 0x0258; // Print resolution
- $iVRes = 0x0258; // Vertical print resolution
- $numHdr = $this->_margin_head; // Header Margin
- $numFtr = $this->_margin_foot; // Footer Margin
- $iCopies = 0x01; // Number of copies
- $fLeftToRight = 0x0; // Print over then down
- $fLandscape = $this->_orientation; // Page orientation
- $fNoPls = 0x0; // Setup not read from printer
- $fNoColor = 0x0; // Print black and white
- $fDraft = 0x0; // Print draft quality
- $fNotes = 0x0; // Print notes
- $fNoOrient = 0x0; // Orientation not set
- $fUsePage = 0x0; // Use custom starting page
- $grbit = $fLeftToRight;
- $grbit |= $fLandscape << 1;
- $grbit |= $fNoPls << 2;
- $grbit |= $fNoColor << 3;
- $grbit |= $fDraft << 4;
- $grbit |= $fNotes << 5;
- $grbit |= $fNoOrient << 6;
- $grbit |= $fUsePage << 7;
- $numHdr = pack("d", $numHdr);
- $numFtr = pack("d", $numFtr);
- if ($this->_byte_order) {
- $numHdr = strrev($numHdr);
- $numFtr = strrev($numFtr);
- }
- $header = pack("vv", $record, $length);
- $data1 = pack("vvvvvvvv", $iPaperSize,
- $iScale,
- $iPageStart,
- $iFitWidth,
- $iFitHeight,
- $grbit,
- $iRes,
- $iVRes);
- $data2 = $numHdr . $numFtr;
- $data3 = pack("v", $iCopies);
- $this->_prepend($header . $data1 . $data2 . $data3);
- }
- /*
- * Store the header caption BIFF record.
- */
- function _store_header() {
- $record = 0x0014; // Record identifier
- $str = $this->_header; // header string
- $cch = strlen($str); // Length of header string
- $length = 1 + $cch; // Bytes to follow
- $header = pack("vv", $record, $length);
- $data = pack("C", $cch);
- $this->_append($header . $data . $str);
- }
- /*
- * Store the footer caption BIFF record.
- */
- function _store_footer() {
- $record = 0x0015; // Record identifier
- $str = $this->_footer; // Footer string
- $cch = strlen($str); // Length of footer string
- $length = 1 + $cch; // Bytes to follow
- $header = pack("vv", $record, $length);
- $data = pack("C", $cch);
- $this->_append($header . $data . $str);
- }
- /*
- * Store the horizontal centering HCENTER BIFF record.
- */
- function _store_hcenter() {
- $record = 0x0083; // Record identifier
- $length = 0x0002; // Bytes to follow
- $fHCenter = $this->_hcenter; // Horizontal centering
- $header = pack("vv", $record, $length);
- $data = pack("v", $fHCenter);
- $this->_append($header . $data);
- }
- /*
- * Store the vertical centering VCENTER BIFF record.
- */
- function _store_vcenter() {
- $record = 0x0084; // Record identifier
- $length = 0x0002; // Bytes to follow
- $fVCenter = $this->_vcenter; // Horizontal centering
- $header = pack("vv", $record, $length);
- $data = pack("v", $fVCenter);
- $this->_append($header . $data);
- }
- /*
- * Store the LEFTMARGIN BIFF record.
- */
- function _store_margin_left() {
- $record = 0x0026; // Record identifier
- $length = 0x0008; // Bytes to follow
- $margin = $this->_margin_left; // Margin in inches
- $header = pack("vv", $record, $length);
- $data = pack("d", $margin);
- if ($this->_byte_order) {
- $data = strrev($data);
- }
- $this->_append($header . $data);
- }
- /*
- * Store the RIGHTMARGIN BIFF record.
- */
- function _store_margin_right() {
- $record = 0x0027; // Record identifier
- $length = 0x0008; // Bytes to follow
- $margin = $this->_margin_right; // Margin in inches
- $header = pack("vv", $record, $length);
- $data = pack("d", $margin);
- if ($this->_byte_order) {
- $data = strrev($data);
- }
- $this->_append($header . $data);
- }
- /*
- * Store the TOPMARGIN BIFF record.
- */
- function _store_margin_top() {
- $record = 0x0028; // Record identifier
- $length = 0x0008; // Bytes to follow
- $margin = $this->_margin_top; // Margin in inches
- $header = pack("vv", $record, $length);
- $data = pack("d", $margin);
- if ($this->_byte_order) {
- $data = strrev($data);
- }
- $this->_append($header . $data);
- }
- /*
- * Store the BOTTOMMARGIN BIFF record.
- */
- function _store_margin_bottom() {
- $record = 0x0029; // Record identifier
- $length = 0x0008; // Bytes to follow
- $margin = $this->_margin_bottom; // Margin in inches
- $header = pack("vv", $record, $length);
- $data = pack("d", $margin);
- if ($this->_byte_order) {
- $data = strrev($data);
- }
- $this->_append($header . $data);
- }
- ###############################################################################
- #
- # merge_cells($first_row, $first_col, $last_row, $last_col)
- #
- # This is an Excel97/2000 method. It is required to perform more complicated
- # merging than the normal align merge in Format.pm
- #
- function merge_cells() {
- $_=func_get_args();
- // Check for a cell reference in A1 notation and substitute row and column
- if (preg_match('/^\D/', $_[0])) {
- $_ = $this->_substitute_cellref($_);
- }
- $record = 0x00E5; # Record identifier
- $length = 0x000A; # Bytes to follow
- $cref = 1; # Number of refs
- $rwFirst = $_[0]; # First row in reference
- $colFirst = $_[1]; # First col in reference
- $rwLast = $_[2] || $rwFirst; # Last row in reference
- $colLast = $_[3] || $colFirst; # Last col in reference
- // Swap last row/col for first row/col as necessary
- if ($rwFirst > $rwLast) {
- list($rwFirst, $rwLast) = array($rwLast, $rwFirst);
- }
- if ($colFirst > $colLast) {
- list($colFirst, $colLast) = array($colLast, $colFirst);
- }
- $header = pack("vv", $record, $length);
- $data = pack("vvvvv", $cref,
- $rwFirst, $rwLast,
- $colFirst, $colLast);
- $this->_append($header . $data);
- }
- /*
- * Write the PRINTHEADERS BIFF record.
- */
- function _store_print_headers() {
- $record = 0x002a; // Record identifier
- $length = 0x0002; // Bytes to follow
- $fPrintRwCol = $this->_print_headers; // Boolean flag
- $header = pack("vv", $record, $length);
- $data = pack("v", $fPrintRwCol);
- $this->_prepend($header . $data);
- }
- /*
- * Write the PRINTGRIDLINES BIFF record. Must be used in conjunction
- * with the GRIDSET record.
- */
- function _store_print_gridlines() {
- $record = 0x002b; // Record identifier
- $length = 0x0002; // Bytes to follow
- $fPrintGrid = $this->_print_gridlines; // Boolean flag
- $header = pack("vv", $record, $length);
- $data = pack("v", $fPrintGrid);
- $this->_prepend($header . $data);
- }
- /*
- * Write the GRIDSET BIFF record. Must be used in conjunction with the
- * PRINTGRIDLINES record.
- */
- function _store_gridset() {
- $record = 0x0082; // Record identifier
- $length = 0x0002; // Bytes to follow
- $fGridSet = !$this->_print_gridlines; // Boolean flag
- $header = pack("vv", $record, $length);
- $data = pack("v", $fGridSet);
- $this->_prepend($header . $data);
- }
- /*
- * Write the WSBOOL BIFF record, mainly for fit-to-page. Used in
- * conjunction with the SETUP record.
- */
- function _store_wsbool() {
- $record = 0x0081; # Record identifier
- $length = 0x0002; # Bytes to follow
- // $grbit Option flags
- // The only option that is of interest is the flag for fit to page.
- // So we set all the options in one go.
- if ($this->_fit_page) {
- $grbit = 0x05c1;
- } else {
- $grbit = 0x04c1;
- }
- $header = pack("vv", $record, $length);
- $data = pack("v", $grbit);
- $this->_prepend($header . $data);
- }
- /*
- * Write the HORIZONTALPAGEBREAKS BIFF record.
- */
- function _store_hbreak() {
- // Return if the user hasn't specified pagebreaks
- if(sizeof($this->_hbreaks)==0) {
- return;
- }
- # Sort and filter array of page breaks
- $breaks = $this->_sort_pagebreaks($this->_hbreaks);
- $record = 0x001b; // Record identifier
- $cbrk = sizeof($breaks); // Number of page breaks
- $length = ($cbrk + 1) * 2; // Bytes to follow
- $header = pack("vv", $record, $length);
- $data = pack("v", $cbrk);
- // Append each page break
- foreach ($breaks as $break) {
- $data .= pack("v", $break);
- }
- $this->_prepend($header . $data);
- }
- /*
- * Write the VERTICALPAGEBREAKS BIFF record.
- */
- function _store_vbreak() {
- // Return if the user hasn't specified pagebreaks
- if(sizeof($this->_vbreaks)==0) {
- return;
- }
- // Sort and filter array of page breaks
- $breaks = $this->_sort_pagebreaks($this->_vbreaks);
- $record = 0x001a; // Record identifier
- $cbrk = sizeof($breaks); // Number of page breaks
- $length = ($cbrk + 1) * 2; // Bytes to follow
- $header = pack("vv", $record, $length);
- $data = pack("v", $cbrk);
- // Append each page break
- foreach ($breaks as $break) {
- $data .= pack("v", $break);
- }
- $this->_prepend($header . $data);
- }
- /*
- * Set the Biff PROTECT record to indicate that the worksheet is
- * protected.
- */
- function _store_protect() {
- // Exit unless sheet protection has been specified
- if (!$this->_protect) {
- return;
- }
- $record = 0x0012; // Record identifier
- $length = 0x0002; // Bytes to follow
- $fLock = $this->_protect; // Worksheet is protected
- $header = pack("vv", $record, $length);
- $data = pack("v", $fLock);
- $this->_prepend($header . $data);
- }
- /*
- * Write the worksheet PASSWORD record.
- */
- function _store_password() {
- // Exit unless sheet protection and password have been specified
- if (!$this->_protect || !$this->_password) {
- return;
- }
- $record = 0x0013; // Record identifier
- $length = 0x0002; // Bytes to follow
- $wPassword = $this->_password; // Encoded password
- $header = pack("vv", $record, $length);
- $data = pack("v", $wPassword);
- $this->_prepend($header . $data);
- }
- ###############################################################################
- #
- # insert_bitmap($row, $col, $filename, $x, $y, $scale_x, $scale_y)
- #
- # Insert a 24bit bitmap image in a worksheet. The main record required is
- # IMDATA but it must be proceeded by a OBJ record to define its position.
- #
- function insert_bitmap() {
- $_=func_get_args();
- # Check for a cell reference in A1 notation and substitute row and column
- if (preg_match('/^\D/', $_[0])) {
- $_ = $this->_substitute_cellref($_);
- }
- $row = $_[0];
- $col = $_[1];
- $bitmap = $_[2];
- $x = $_[3] ? $_[3] : 0;
- $y = $_[4] ? $_[4] : 0;
- $scale_x = $_[5] ? $_[5] : 1;
- $scale_y = $_[6] ? $_[6] : 1;
- list($width, $height, $size, $data) = $this->_process_bitmap($bitmap);
- # Scale the frame of the image.
- $width *= $scale_x;
- $height *= $scale_y;
- # Calculate the vertices of the image and write the OBJ record
- $this->_position_image($col, $row, $x, $y, $width, $height);
- # Write the IMDATA record to store the bitmap data
- $record = 0x007f;
- $length = 8 + $size;
- $cf = 0x09;
- $env = 0x01;
- $lcb = $size;
- $header = pack("vvvvV", $record, $length, $cf, $env, $lcb);
- $this->_append($header . $data);
- }
- /*
- * Calculate the vertices that define the position of the image as
- * required by the OBJ record.
- *
- * +------------+------------+
- * | A | B |
- * +-----+------------+------------+
- * | |(x1,y1) | |
- * | 1 |(A1)._______|______ |
- * | | | | |
- * | | | | |
- * +-----+----| BITMAP |-----+
- * | | | | |
- * | 2 | |______________. |
- * | | | (B2)|
- * | | | (x2,y2)|
- * +---- +------------+------------+
- *
- * Example of a bitmap that covers some of the area from cell A1 to
- * cell B2.
- *
- * Based on the width and height of the bitmap we need to calculate 8
- *vars:
- * $col_start, $row_start, $col_end, $row_end, $x1, $y1, $x2, $y2.
- * The width and height of the cells are also variable and have to be
- * taken into account.
- * The values of $col_start and $row_start are passed in from the calling
- * function. The values of $col_end and $row_end are calculated by
- * subtracting the width and height of the bitmap from the width and
- * height of the underlying cells.
- * The vertices are expressed as a percentage of the underlying cell
- * width as follows (rhs values are in pixels):
- *
- * x1 = X / W *1024
- * y1 = Y / H *256
- * x2 = (X-1) / W *1024
- * y2 = (Y-1) / H *256
- *
- * Where: X is distance from the left side of the underlying cell
- * Y is distance from the top of the underlying cell
- * W is the width of the cell
- * H is the height of the cell
- *
- * Note: the SDK incorrectly states that the height should be expressed
- * as a percentage of 1024.
- */
- function _position_image($col_start, $row_start, $x1, $y1,
- $width, $height) {
- // $col_start Col containing upper left corner of object
- // $x1 Distance to left side of object
- // $row_start Row containing top left corner of object
- // $y1 Distance to top of object
- // $col_end Col containing lower right corner of object
- // $x2 Distance to right side of object
- // $row_end Row containing bottom right corner of object
- // $y2 Distance to bottom of object
- // $width Width of image frame
- // $height Height of image frame
- // Initialise end cell to the same as the start cell
- $col_end = $col_start;
- $row_end = $row_start;
- // Zero the specified offset if greater than the cell dimensions
- if ($x1 >= $this->_size_col($col_start)) {
- $x1 = 0;
- }
- if ($y1 >= $this->_size_row($row_start)) {
- $y1 = 0;
- }
- $width = $width + $x1 -1;
- $height = $height + $y1 -1;
- // Subtract the underlying cell widths to find the end cell of the
- // image
- while ($width >= $this->_size_col($col_end)) {
- $width -= $this->_size_col($col_end);
- $col_end++;
- }
- // Subtract the underlying cell heights to find the end cell of the
- // image
- while ($height >= $this->_size_row($row_end)) {
- $height -= $this->_size_row($row_end);
- $row_end++;
- }
- // Bitmap isn't allowed to start or finish in a hidden cell, i.e. a
- // cell with zero height or width.
- if ($this->_size_col($col_start) == 0) { return; }
- if ($this->_size_col($col_end) == 0) { return; }
- if ($this->_size_row($row_start) == 0) { return; }
- if ($this->_size_row($row_end) == 0) { return; }
- // Convert the pixel values to the percentage value expected by Excel
- $x1 = $x1 / $this->_size_col($col_start) * 1024;
- $y1 = $y1 / $this->_size_row($row_start) * 256;
- $x2 = $width / $this->_size_col($col_end) * 1024;
- $y2 = $height / $this->_size_row($row_end) * 256;
- $this->_store_obj_picture($col_start, $x1, $row_start, $y1,
- $col_end, $x2, $row_end, $y2);
- }
- /*
- * Convert the width of a cell from user's units to pixels. By
- * interpolation the relationship is: y = 7x +5. If the width
- * hasn't been set by the user we use the default value. If the
- * col is hidden we use a value of zero.
- */
- function _size_col($col) {
- // Look up the cell value to see if it has been changed
- if (isset($this->_col_sizes[$col])) {
- if ($this->_col_sizes[$col] == 0) {
- return 0;
- } else {
- return floor(7 * $this->_col_sizes[$col] + 5);
- }
- } else {
- return 64;
- }
- }
- /*
- * Convert the height of a cell from user's units to pixels. By
- * interpolation # the relationship is: y = 4/3x. If the height
- * hasn't been set by the user we use the default value. If the
- * row is hidden we use a value of zero. (Not possible to hide row
- * yet).
- */
- function _size_row($row) {
- // Look up the cell value to see if it has been changed
- if (isset($this->_row_sizes[$row])) {
- if ($this->_row_sizes[$row] == 0) {
- return 0;
- } else {
- return floor(4/3 * $this->_row_sizes[$row]);
- }
- } else {
- return 17;
- }
- }
- /*
- * Store the OBJ record that precedes an IMDATA record. This could
- * be generalized to support other Excel objects.
- */
- function _store_obj_picture($col_start, $x1, $row_start, $y1,
- $col_end, $x2, $row_end, $y2) {
- $record = 0x005d; // Record identifier
- $length = 0x003c; // Bytes to follow
- $cObj = 0x0001; // Count of objects in file (set to 1)
- $OT = 0x0008; // Object type. 8 = Picture
- $id = 0x0001; // Object ID
- $grbit = 0x0614; // Option flags
- $colL = $col_start; // Col containing upper left corner of
- // object
- $dxL = $x1; // Distance from left side of cell
- $rwT = $row_start; // Row containing top left corner of
- // object
- $dyT = $y1; // Distance from top of cell
- $colR = $col_end; // Col containing lower right corner of
- // object
- $dxR = $x2; // Distance from right of cell
- $rwB = $row_end; // Row containing bottom right corner of
- // object
- $dyB = $y2; // Distance from bottom of cell
- $cbMacro = 0x0000; // Length of FMLA structure
- $Reserved1 = 0x0000; // Reserved
- $Reserved2 = 0x0000; // Reserved
- $icvBack = 0x09; // Background colour
- $icvFore = 0x09; // Foreground colour
- $fls = 0x00; // Fill pattern
- $fAuto = 0x00; // Automatic fill
- $icv = 0x08; // Line colour
- $lns = 0xff; // Line style
- $lnw = 0x01; // Line weight
- $fAutoB = 0x00; // Automatic border
- $frs = 0x0000; // Frame style
- $cf = 0x0009; // Image format, 9 = bitmap
- $Reserved3 = 0x0000; // Reserved
- $cbPictFmla = 0x0000; // Length of FMLA structure
- $Reserved4 = 0x0000; // Reserved
- $grbit2 = 0x0001; // Option flags
- $Reserved5 = 0x0000; // Reserved
- $header = pack("vv", $record, $length);
- $data = pack("V", $cObj);
- $data .= pack("v", $OT);
- $data .= pack("v", $id);
- $data .= pack("v", $grbit);
- $data .= pack("v", $colL);
- $data .= pack("v", $dxL);
- $data .= pack("v", $rwT);
- $data .= pack("v", $dyT);
- $data .= pack("v", $colR);
- $data .= pack("v", $dxR);
- $data .= pack("v", $rwB);
- $data .= pack("v", $dyB);
- $data .= pack("v", $cbMacro);
- $data .= pack("V", $Reserved1);
- $data .= pack("v", $Reserved2);
- $data .= pack("C", $icvBack);
- $data .= pack("C", $icvFore);
- $data .= pack("C", $fls);
- $data .= pack("C", $fAuto);
- $data .= pack("C", $icv);
- $data .= pack("C", $lns);
- $data .= pack("C", $lnw);
- $data .= pack("C", $fAutoB);
- $data .= pack("v", $frs);
- $data .= pack("V", $cf);
- $data .= pack("v", $Reserved3);
- $data .= pack("v", $cbPictFmla);
- $data .= pack("v", $Reserved4);
- $data .= pack("v", $grbit2);
- $data .= pack("V", $Reserved5);
- $this->_append($header . $data);
- }
- /*
- * Convert a 24 bit bitmap into the modified internal format used by
- * Windows. This is described in BITMAPCOREHEADER and BITMAPCOREINFO
- * structures in the MSDN library.
- */
- function _process_bitmap($bitmap) {
- // Open file and binmode the data in case the platform needs it.
- $bmp=fopen($bitmap, "rb");
- if (!$bmp) {
- trigger_error("Could not open file '$bitmap'.", E_USER_ERROR);
- }
- $data=fread($bmp, filesize($bitmap));
- // Check that the file is big enough to be a bitmap.
- if (strlen($data) <= 0x36) {
- trigger_error("$bitmap doesn't contain enough data.",
- E_USER_ERROR);
- }
- // The first 2 bytes are used to identify the bitmap.
- if (substr($data, 0, 2) != "BM") {
- trigger_error("$bitmap doesn't appear to to be a ".
- "valid bitmap image.", E_USER_ERROR);
- }
- // Remove bitmap data: ID.
- $data = substr($data, 2);
- // Read and remove the bitmap size. This is more reliable than reading
- // the data size at offset 0x22.
- $array = unpack("Vsize", $data);
- $data = substr($data, 4);
- $size = $array["size"];
- $size -= 0x36; # Subtract size of bitmap header.
- $size += 0x0C; # Add size of BIFF header.
- // Remove bitmap data: reserved, offset, header length.
- $data = substr($data, 12);
- // Read and remove the bitmap width and height. Verify the sizes.
- $array = unpack("Vwidth/Vheight", $data);
- $data = substr($data, 8);
- $width = $array["width"];
- $height = $array["height"];
- if ($width > 0xFFFF) {
- trigger_error("$bitmap: largest image width supported is 64k.",
- E_USER_ERROR);
- }
- if ($height > 0xFFFF) {
- trigger_error("$bitmap: largest image height supported is 64k.",
- E_USER_ERROR);
- }
- // Read and remove the bitmap planes and bpp data. Verify them.
- $array = unpack("vplanes/vbitcount", $data);
- $data = substr($data, 4);
- $planes = $array["planes"];
- $bitcount = $array["bitcount"];
- if ($bitcount != 24) {
- trigger_error("$bitmap isn't a 24bit true color bitmap.",
- E_USER_ERROR);
- }
- if ($planes != 1) {
- trigger_error("$bitmap: only 1 plane supported in bitmap image.",
- E_USER_ERROR);
- }
- // Read and remove the bitmap compression. Verify compression.
- $array = unpack("Vcompression", $data);
- $data = substr($data, 4);
- $compression = $array["compression"];
- if ($compression != 0) {
- trigger_error("$bitmap: compression not supported in bitmap image.",
- E_USER_ERROR);
- }
- // Remove bitmap data: data size, hres, vres, colours, imp. colours.
- $data = substr($data, 20);
- // Add the BITMAPCOREHEADER data
- $header = pack("Vvvvv", 0x000c, $width, $height, 0x01, 0x18);
- $data = $header . $data;
- return array($width, $height, $size, $data);
- }
- /*
- * Store the window zoom factor. This should be a reduced fraction but for
- * simplicity we will store all fractions with a numerator of 100.
- */
- function _store_zoom() {
- // If scale is 100% we don't need to write a record
- if ($this->_zoom == 100) {
- return;
- }
- $record = 0x00A0; // Record identifier
- $length = 0x0004; // Bytes to follow
- $header = pack("vv", $record, $length);
- $data = pack("vv", $this->_zoom, 100);
- $this->_append($header . $data);
- }
- }
- ?>