[#1184] Added public methods to Help.Layout

RELEASE-NOTES.md

@@ -19,6 +19,7 @@ Picocli follows [semantic versioning](http://semver.org/).
 ## <a name="4.6.0-new"></a> New and Noteworthy
 
 ## <a name="4.6.0-fixes"></a> Fixed issues
+* [#1184] API: Added public methods `Help.Layout::colorScheme`, `Help.Layout::textTable`, `Help.Layout::optionRenderer`, and `Help.Layout::parameterRenderer`.
 * [#1225] Bugfix: Error message for unmatched positional argument reports incorrect index when value equals a previously matched argument. Thanks to [Vitaly Shukela](https://github.com/vi) for raising this.
 * [#1215] DOC: User manual improvements, including more tabs with Kotlin source code. Thanks to [Andreas Deininger](https://github.com/deining) for the pull request.
 * [#1219] DOC: User manual improvements: added more tabs with Kotlin code. Thanks to [Andreas Deininger](https://github.com/deining) for the pull request.

src/main/java/picocli/CommandLine.java

@@ -15619,6 +15619,18 @@ public void addPositionalParameter(PositionalParamSpec param, IParamLabelRendere
             }
             /** Returns the section of the usage help message accumulated in the TextTable owned by this layout. */
             @Override public String toString() { return table.toString(); }
+            /** Returns the ColorScheme used to create Text objects in this layout.
+             * @since 4.6 */
+            public ColorScheme colorScheme() { return colorScheme; }
+            /** Returns the TextTable used in this layout.
+             * @since 4.6 */
+            public TextTable textTable() { return table; }
+            /** Returns the IOptionRenderer used to render options to Text before adding this text to the TextTable in this layout.
+             * @since 4.6 */
+            public IOptionRenderer optionRenderer() { return optionRenderer; }
+            /** Returns the IParameterRenderer used to render positional params to Text before adding this text to the TextTable in this layout.
+             * @since 4.6 */
+            public IParameterRenderer parameterRenderer() { return parameterRenderer; }
         }
         /** Sorts short strings before longer strings. */
         static class ShortestFirst implements Comparator<String> {

src/test/java/picocli/HelpTest.java

@@ -2478,6 +2478,25 @@ public void testUsageNestedSubcommand() throws IOException {
                 "  sub22sub1%n"), sub22);
     }
 
+    @Test
+    public void testLayoutGetters() {
+        ColorScheme colorScheme = new ColorScheme.Builder().build();
+        TextTable table = TextTable.forDefaultColumns(colorScheme, 20, 80);
+        Help.IOptionRenderer optionRenderer = Help.createMinimalOptionRenderer();
+        Help.IParameterRenderer paramRenderer = Help.createMinimalParameterRenderer();
+        Help.Layout layout = new Help.Layout(colorScheme, table, optionRenderer, paramRenderer);
+
+        assertSame(colorScheme, layout.colorScheme());
+        assertSame(table, layout.textTable());
+        assertSame(optionRenderer, layout.optionRenderer());
+        assertSame(paramRenderer, layout.parameterRenderer());
+
+        assertSame(layout.colorScheme, layout.colorScheme());
+        assertSame(layout.table, layout.textTable());
+        assertSame(layout.optionRenderer, layout.optionRenderer());
+        assertSame(layout.parameterRenderer, layout.parameterRenderer());
+    }
+
     @SuppressWarnings("deprecation")
     @Test
     public void testLayoutConstructorCreatesDefaultColumns() {