Restructure examples folder (#47)

Split examples into separate markdown files, each containing a description, sample code, and a screenshot of the resulting xlsx document.

The script `generate.rb` is provided to actually generate the example documents by executing the sample code contained in the markdown files.

1 files changed, 33 insertions, 0 deletions

diff --git a/examples/conditional_formatting_data_bar_example.md b/examples/conditional_formatting_data_bar_example.md
new file mode 100644
index 00000000..1772530a
--- /dev/null
+++ b/examples/conditional_formatting_data_bar_example.md
@@ -0,0 +1,33 @@
+## Description
+
+Conditional format example: Data bar.
+
+## Code
+
+```ruby
+require 'axlsx'
+
+p = Axlsx::Package.new
+wb = p.workbook
+
+s = wb.styles
+high = s.add_style bg_color: 'FF428751', type: :dxf
+
+wb.add_worksheet(name: 'Conditional') do |sheet|
+  # Use 10 random number
+  sheet.add_row Array.new(10) { (rand * 10).floor }
+
+  data_bar = Axlsx::DataBar.new
+  sheet.add_conditional_formatting('A1:J1',
+    type: :dataBar,
+    dxfId: high,
+    priority: 1,
+    data_bar: data_bar)
+end
+
+p.serialize 'conditional_formatting_data_bar_example.xlsx'
+```
+
+## Output
+
+![Output](images/conditional_formatting_data_bar_example.png "Output")