Make background color in diagrams configurable

atextor · Aug 6, 2021 · 04e313e · 04e313e
1 parent f2263d2
commit 04e313e
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diff --git a/cli/src/main/java/de/atextor/owlcli/OWLCLIDiagramCommand.java b/cli/src/main/java/de/atextor/owlcli/OWLCLIDiagramCommand.java
@@ -73,6 +73,9 @@ public class OWLCLIDiagramCommand extends AbstractCommand implements Runnable {
     @CommandLine.Option( names = { "--dotbinary" }, description = "Path to dot binary (Default: ${DEFAULT-VALUE})" )
     private String dotBinary = config.dotBinary;
 
+    @CommandLine.Option( names = { "--bgcolor" }, description = "Background color (Default: ${DEFAULT-VALUE})" )
+    private String bgColor = config.bgColor;
+
     @CommandLine.Parameters( paramLabel = "INPUT", description = "File name or - for stdin", arity = "1",
         index = "0" )
     private String input;
@@ -96,6 +99,7 @@ public void run() {
             .format( format )
             .layoutDirection( layoutDirection )
             .dotBinary( dotBinary )
+            .bgColor( bgColor )
             .build();
 
         final MappingConfiguration mappingConfig = DefaultMappingConfiguration.builder().build();

diff --git a/diagram/src/main/java/de/atextor/owlcli/diagram/diagram/Configuration.java b/diagram/src/main/java/de/atextor/owlcli/diagram/diagram/Configuration.java
@@ -47,6 +47,9 @@ public class Configuration {
     @Builder.Default
     public String nodeStyle = "rounded";
 
+    @Builder.Default
+    public String bgColor = "white";
+
     @Builder.Default
     public Format format = Format.SVG;
 

diff --git a/diagram/src/main/java/de/atextor/owlcli/diagram/diagram/GraphvizDocument.java b/diagram/src/main/java/de/atextor/owlcli/diagram/diagram/GraphvizDocument.java
@@ -43,6 +43,8 @@ public class GraphvizDocument implements Function<Configuration, String> {
         digraph G {
           rankdir = ${rankdir}
 
+          bgcolor = "${bgcolor}"
+
           fontname = "${fontname}"
           fontsize = ${fontsize}
 
@@ -54,6 +56,7 @@ public class GraphvizDocument implements Function<Configuration, String> {
             style = "${nodeStyle}"
             height = 0.3
             width = 0.2
+            bgcolor = "${bgcolor}"
           ]
 
           ${statements}
@@ -104,6 +107,7 @@ public String apply( final Configuration configuration ) {
             "nodeShape", configuration.nodeShape,
             "nodeMargin", configuration.nodeMargin,
             "nodeStyle", configuration.nodeStyle,
+            "bgColor", configuration.bgColor,
             "statements", Stream.concat( nodeStatements.stream(), edgeStatements.stream() )
                 .map( Statement::toFragment )
                 .collect( Collectors.joining( "   \n" ) ) ) );

diff --git a/docs/modules/ROOT/pages/usage.adoc b/docs/modules/ROOT/pages/usage.adoc
@@ -124,6 +124,11 @@ extension changed, e.g. myontology.ttl -> myontology.svg. If `input` is `-` and
 |See the https://www.graphviz.org/doc/info/attrs.html#k:style[Graphviz
  documentation] for more information
 
+|`--bgcolor`
+|Background color for the generated diagram
+|white
+|See the https://www.graphviz.org/docs/attrs/bgcolor/[Graphviz documentation] for more information
+
 |===
 
 [#diagram-example-usage]