How to use

createEditorHighlighter

method

in

com.intellij.openapi.editor.highlighter.EditorHighlighterFactory

  @Override
  public EditorHighlighter getEditorHighlighter(@Nullable Project project, @NotNull FileType fileType, @Nullable VirtualFile virtualFile, @NotNull EditorColorsScheme colors) {
    return EditorHighlighterFactory.getInstance().createEditorHighlighter(CsvSyntaxHighlighterFactory.getSyntaxHighlighter(CsvLanguage.INSTANCE, project, virtualFile), colors);
  }
}

/**
 * 重置
 *
 * @param name    模板名称
 * @param content 文本内容
 */
public void reset(String name, String content) {
  if (content != null && this.editor != null) {
    // 重置语法高亮
    ((EditorEx) editor).setHighlighter(EditorHighlighterFactory.getInstance().createEditorHighlighter(project, new LightVirtualFile(name + ".ft")));
    // 重置文本内容
    WriteCommandAction.runWriteCommandAction(project, () -> this.editor.getDocument().setText(content));
  }
}

((EditorEx) editor).setHighlighter(EditorHighlighterFactory.getInstance().createEditorHighlighter(project, new LightVirtualFile(name + ".ft")));

((EditorEx) editor).setHighlighter(EditorHighlighterFactory.getInstance().createEditorHighlighter(project, new LightVirtualFile(fileName)));