resolves #2119 allow border width of block image to be specified as an array (PR #2122)

3 files changed, 32 insertions, 1 deletions

diff --git a/CHANGELOG.adoc b/CHANGELOG.adoc
index b41a0660..6c49dae7 100644
--- a/CHANGELOG.adoc
+++ b/CHANGELOG.adoc
@@ -14,6 +14,7 @@ Enhancements::
 
 Bug Fixes::
 
+* allow border width of block image to be specified as an array (1, 2, or 4 values) (#2119)
 * rename `delete_page` extension method to `delete_current_page` to avoid conflict with incompatible method on `Prawn::Document`
 
 == 2.0.0.alpha.3 (2022-05-01) - @mojavelinux
diff --git a/lib/asciidoctor/pdf/converter.rb b/lib/asciidoctor/pdf/converter.rb
index 6f291b75..82ef6162 100644
--- a/lib/asciidoctor/pdf/converter.rb
+++ b/lib/asciidoctor/pdf/converter.rb
@@ -1653,7 +1653,7 @@ module Asciidoctor
       end
 
       def draw_image_border top, w, h, alignment
-        if @theme.image_border_width > 0 && @theme.image_border_color
+        if (Array @theme.image_border_width).any? {|it| it&.> 0 } && @theme.image_border_color
           if (@theme.image_border_fit || 'content') == 'auto'
             bb_width = bounds.width
           elsif alignment == :center
diff --git a/spec/image_spec.rb b/spec/image_spec.rb
index 55d72aba..a6a89650 100644
--- a/spec/image_spec.rb
+++ b/spec/image_spec.rb
@@ -2140,6 +2140,36 @@ describe 'Asciidoctor::PDF::Converter - Image' do
       (expect pdf.lines.select {|it| it[:color] == 'DEDEDE' }).to be_empty
     end
 
+    it 'should allow border on block image to be specified per edge' do
+      pdf_theme = {
+        image_border_width: [1, 2, 3, 4],
+        image_border_color: 'DEDEDE',
+      }
+      pdf = to_pdf <<~'EOS', pdf_theme: pdf_theme, analyze: :line
+      image::square.png[]
+      EOS
+      lines = pdf.lines
+      (expect lines).to have_size 4
+      (expect lines.map {|it| it[:width] }.sort).to eql [1, 2, 3, 4]
+      (expect lines.map {|it| it[:color] }.uniq).to eql %w(DEDEDE)
+    end
+
+    it 'should allow border on block image to be specified on ends and sides' do
+      pdf_theme = {
+        image_border_width: [4, 1],
+        image_border_color: 'DEDEDE',
+      }
+      pdf = to_pdf <<~'EOS', pdf_theme: pdf_theme, analyze: :line
+      image::square.png[]
+      EOS
+      lines = pdf.lines
+      (expect lines).to have_size 4
+      (expect lines.map {|it| it[:width] }.sort).to eql [1, 1, 4, 4]
+      (expect lines.select {|it| it[:width] == 4 && it[:from][:y] == it[:to][:y] }).to have_size 2
+      (expect lines.select {|it| it[:width] == 1 && it[:from][:x] == it[:to][:x] }).to have_size 2
+      (expect lines.map {|it| it[:color] }.uniq).to eql %w(DEDEDE)
+    end
+
     it 'should draw border around inline image if border width and border color are set in the theme', visual: true do
       pdf_theme = {
         role_enclose_border_width: 0.5,