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#!/usr/bin/perl -w
###############################################################################
#
# Example of how use Spreadsheet::WriteExcel to generate Excel outlines and
# grouping.
#
#
# Excel allows you to group rows or columns so that they can be hidden or
# displayed with a single mouse click. This feature is referred to as outlines.
#
# Outlines can reduce complex data down to a few salient sub-totals or
# summaries.
#
# This feature is best viewed in Excel but the following is an ASCII
# representation of what a worksheet with three outlines might look like.
# Rows 3-4 and rows 7-8 are grouped at level 2. Rows 2-9 are grouped at
# level 1. The lines at the left hand side are called outline level bars.
#
#
# ------------------------------------------
# 1 2 3 | | A | B | C | D | ...
# ------------------------------------------
# _ | 1 | A | | | | ...
# | _ | 2 | B | | | | ...
# | | | 3 | (C) | | | | ...
# | | | 4 | (D) | | | | ...
# | - | 5 | E | | | | ...
# | _ | 6 | F | | | | ...
# | | | 7 | (G) | | | | ...
# | | | 8 | (H) | | | | ...
# | - | 9 | I | | | | ...
# - | . | ... | ... | ... | ... | ...
#
#
# Clicking the minus sign on each of the level 2 outlines will collapse and
# hide the data as shown in the next figure. The minus sign changes to a plus
# sign to indicate that the data in the outline is hidden.
#
# ------------------------------------------
# 1 2 3 | | A | B | C | D | ...
# ------------------------------------------
# _ | 1 | A | | | | ...
# | | 2 | B | | | | ...
# | + | 5 | E | | | | ...
# | | 6 | F | | | | ...
# | + | 9 | I | | | | ...
# - | . | ... | ... | ... | ... | ...
#
#
# Clicking on the minus sign on the level 1 outline will collapse the remaining
# rows as follows:
#
# ------------------------------------------
# 1 2 3 | | A | B | C | D | ...
# ------------------------------------------
# | 1 | A | | | | ...
# + | . | ... | ... | ... | ... | ...
#
# See the main Spreadsheet::WriteExcel documentation for more information.
#
# reverse(''), April 2003, John McNamara, jmcnamara@cpan.org
#
use strict;
use Spreadsheet::WriteExcel;
# Create a new workbook and add some worksheets
my $workbook = Spreadsheet::WriteExcel->new('outline.xls');
my $worksheet1 = $workbook->add_worksheet('Outlined Rows');
my $worksheet2 = $workbook->add_worksheet('Collapsed Rows');
my $worksheet3 = $workbook->add_worksheet('Outline Columns');
my $worksheet4 = $workbook->add_worksheet('Outline levels');
# Add a general format
my $bold = $workbook->add_format(bold => 1);
###############################################################################
#
# Example 1: Create a worksheet with outlined rows. It also includes SUBTOTAL()
# functions so that it looks like the type of automatic outlines that are
# generated when you use the Excel Data->SubTotals menu item.
#
# For outlines the important parameters are $hidden and $level. Rows with the
# same $level are grouped together. The group will be collapsed if $hidden is
# non-zero. $height and $XF are assigned default values if they are undef.
#
# The syntax is: set_row($row, $height, $XF, $hidden, $level, $collapsed)
#
$worksheet1->set_row(1, undef, undef, 0, 2);
$worksheet1->set_row(2, undef, undef, 0, 2);
$worksheet1->set_row(3, undef, undef, 0, 2);
$worksheet1->set_row(4, undef, undef, 0, 2);
$worksheet1->set_row(5, undef, undef, 0, 1);
$worksheet1->set_row(6, undef, undef, 0, 2);
$worksheet1->set_row(7, undef, undef, 0, 2);
$worksheet1->set_row(8, undef, undef, 0, 2);
$worksheet1->set_row(9, undef, undef, 0, 2);
$worksheet1->set_row(10, undef, undef, 0, 1);
# Add a column format for clarity
$worksheet1->set_column('A:A', 20);
# Add the data, labels and formulas
$worksheet1->write('A1', 'Region', $bold);
$worksheet1->write('A2', 'North');
$worksheet1->write('A3', 'North');
$worksheet1->write('A4', 'North');
$worksheet1->write('A5', 'North');
$worksheet1->write('A6', 'North Total', $bold);
$worksheet1->write('B1', 'Sales', $bold);
$worksheet1->write('B2', 1000);
$worksheet1->write('B3', 1200);
$worksheet1->write('B4', 900);
$worksheet1->write('B5', 1200);
$worksheet1->write('B6', '=SUBTOTAL(9,B2:B5)', $bold);
$worksheet1->write('A7', 'South');
$worksheet1->write('A8', 'South');
$worksheet1->write('A9', 'South');
$worksheet1->write('A10', 'South');
$worksheet1->write('A11', 'South Total', $bold);
$worksheet1->write('B7', 400);
$worksheet1->write('B8', 600);
$worksheet1->write('B9', 500);
$worksheet1->write('B10', 600);
$worksheet1->write('B11', '=SUBTOTAL(9,B7:B10)', $bold);
$worksheet1->write('A12', 'Grand Total', $bold);
$worksheet1->write('B12', '=SUBTOTAL(9,B2:B10)', $bold);
###############################################################################
#
# Example 2: Create a worksheet with outlined rows. This is the same as the
# previous example except that the rows are collapsed.
# Note: We need to indicate the row that contains the collapsed symbol '+'
# with the optional parameter, $collapsed.
# The group will be collapsed if $hidden is non-zero.
# The syntax is: set_row($row, $height, $XF, $hidden, $level, $collapsed)
#
$worksheet2->set_row(1, undef, undef, 1, 2);
$worksheet2->set_row(2, undef, undef, 1, 2);
$worksheet2->set_row(3, undef, undef, 1, 2);
$worksheet2->set_row(4, undef, undef, 1, 2);
$worksheet2->set_row(5, undef, undef, 1, 1);
$worksheet2->set_row(6, undef, undef, 1, 2);
$worksheet2->set_row(7, undef, undef, 1, 2);
$worksheet2->set_row(8, undef, undef, 1, 2);
$worksheet2->set_row(9, undef, undef, 1, 2);
$worksheet2->set_row(10, undef, undef, 1, 1);
$worksheet2->set_row(11, undef, undef, 0, 0, 1);
# Add a column format for clarity
$worksheet2->set_column('A:A', 20);
# Add the data, labels and formulas
$worksheet2->write('A1', 'Region', $bold);
$worksheet2->write('A2', 'North');
$worksheet2->write('A3', 'North');
$worksheet2->write('A4', 'North');
$worksheet2->write('A5', 'North');
$worksheet2->write('A6', 'North Total', $bold);
$worksheet2->write('B1', 'Sales', $bold);
$worksheet2->write('B2', 1000);
$worksheet2->write('B3', 1200);
$worksheet2->write('B4', 900);
$worksheet2->write('B5', 1200);
$worksheet2->write('B6', '=SUBTOTAL(9,B2:B5)', $bold);
$worksheet2->write('A7', 'South');
$worksheet2->write('A8', 'South');
$worksheet2->write('A9', 'South');
$worksheet2->write('A10', 'South');
$worksheet2->write('A11', 'South Total', $bold);
$worksheet2->write('B7', 400);
$worksheet2->write('B8', 600);
$worksheet2->write('B9', 500);
$worksheet2->write('B10', 600);
$worksheet2->write('B11', '=SUBTOTAL(9,B7:B10)', $bold);
$worksheet2->write('A12', 'Grand Total', $bold);
$worksheet2->write('B12', '=SUBTOTAL(9,B2:B10)', $bold);
###############################################################################
#
# Example 3: Create a worksheet with outlined columns.
#
my $data = [
['Month', 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',' Total'],
['North', 50, 20, 15, 25, 65, 80, ,'=SUM(B2:G2)'],
['South', 10, 20, 30, 50, 50, 50, ,'=SUM(B3:G3)'],
['East', 45, 75, 50, 15, 75, 100, ,'=SUM(B4:G4)'],
['West', 15, 15, 55, 35, 20, 50, ,'=SUM(B5:G6)'],
];
# Add bold format to the first row
$worksheet3->set_row(0, undef, $bold);
# Syntax: set_column($col1, $col2, $width, $XF, $hidden, $level, $collapsed)
$worksheet3->set_column('A:A', 10, $bold );
$worksheet3->set_column('B:G', 5, undef, 0, 1);
$worksheet3->set_column('H:H', 10);
# Write the data and a formula
$worksheet3->write_col('A1', $data);
$worksheet3->write('H6', '=SUM(H2:H5)', $bold);
###############################################################################
#
# Example 4: Show all possible outline levels.
#
my $levels = ["Level 1", "Level 2", "Level 3", "Level 4",
"Level 5", "Level 6", "Level 7", "Level 6",
"Level 5", "Level 4", "Level 3", "Level 2", "Level 1"];
$worksheet4->write_col('A1', $levels);
$worksheet4->set_row(0, undef, undef, undef, 1);
$worksheet4->set_row(1, undef, undef, undef, 2);
$worksheet4->set_row(2, undef, undef, undef, 3);
$worksheet4->set_row(3, undef, undef, undef, 4);
$worksheet4->set_row(4, undef, undef, undef, 5);
$worksheet4->set_row(5, undef, undef, undef, 6);
$worksheet4->set_row(6, undef, undef, undef, 7);
$worksheet4->set_row(7, undef, undef, undef, 6);
$worksheet4->set_row(8, undef, undef, undef, 5);
$worksheet4->set_row(9, undef, undef, undef, 4);
$worksheet4->set_row(10, undef, undef, undef, 3);
$worksheet4->set_row(11, undef, undef, undef, 2);
$worksheet4->set_row(12, undef, undef, undef, 1);
__END__
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