在 PHP 中管理演示文稿评论

在 PowerPoint 中,评论显示为幻灯片上的注释或批注。单击评论后,会显示其内容或信息。

为什么要向演示文稿添加评论?

在审阅演示文稿时,您可能需要使用评论来提供反馈或与同事交流。

为了让您在 PowerPoint 演示文稿中使用评论,Aspose.Slides for PHP via Java 提供

  • The Presentation class, which contains the collections of authors (from the CommentAuthorCollection class). The authors add comments to slides.
  • The CommentCollection class, which contains the collection of comments for individual authors.
  • The Comment class, which contains information on authors and their comments: who added the comment, the time the comment was added, the comment’s position, etc.
  • The CommentAuthor class, which contains information on individual authors: the author’s name, his initials, comments associated with the author’s name, etc.

添加幻灯片评论

下面的 PHP 代码演示如何向 PowerPoint 演示文稿的幻灯片添加评论:

  # 实例化 Presentation 类
  $pres = new Presentation();
  $Array = new java_class("java.lang.reflect.Array");
  try {
    # 添加空幻灯片
    $pres->getSlides()->addEmptySlide($pres->getLayoutSlides()->get_Item(0));
    # 添加作者
    $author = $pres->getCommentAuthors()->addAuthor("Jawad", "MF");
    # 设置评论的位置
    $point = new Point2DFloat(0.2, 0.2);
    # 为作者在幻灯片 1 上添加幻灯片评论
    $author->getComments()->addComment("Hello Jawad, this is slide comment", $pres->getSlides()->get_Item(0), $point, new Java("java.util.Date"));
    # 为作者在幻灯片 2 上添加幻灯片评论
    $author->getComments()->addComment("Hello Jawad, this is second slide comment", $pres->getSlides()->get_Item(1), $point, new Java("java.util.Date"));
    # 访问 ISlide 1
    $slide = $pres->getSlides()->get_Item(0);
    # 当参数为 null 时,将把所有作者的评论带到选定的幻灯片
    $Comments = $slide->getSlideComments($author);
    # 访问幻灯片 1 上索引 0 的评论
    $str = $Comments[0]->getText();
    $pres->save("Comments_out.pptx", SaveFormat::Pptx);
    if (java_values($Array->getLength($Comments)) > 0) {
      # 选择作者在索引 0 的评论集合
      $commentCollection = $Comments[0]->getAuthor()->getComments();
      $Comment = $commentCollection->get_Item(0)->getText();
    }
  } finally {
    if (!java_is_null($pres)) {
      $pres->dispose();
    }
  }

访问幻灯片评论

下面的 PHP 代码演示如何访问 PowerPoint 演示文稿中幻灯片的现有评论:

  # 实例化 Presentation 类
  $pres = new Presentation("Comments1.pptx");
  try {
    foreach($pres->getCommentAuthors() as $commentAuthor) {
      $author = $commentAuthor;
      foreach($author->getComments() as $comment1) {
        $comment = $comment1;
        echo("ISlide :" . $comment->getSlide()->getSlideNumber() . " has comment: " . $comment->getText() . " with Author: " . $comment->getAuthor()->getName() . " posted on time :" . $comment->getCreatedTime() . "\n");
      }
    }
  } finally {
    if (!java_is_null($pres)) {
      $pres->dispose();
    }
  }

回复评论

父评论是评论层级或回复链中的顶层(原始)评论。使用 getParentCommentsetParentComment 方法(来自 Comment 类),您可以设置或获取父评论。

下面的 PHP 代码演示如何添加评论并获取其回复:

  $pres = new Presentation();
  $Array = new java_class("java.lang.reflect.Array");
  try {
    # 添加评论
    $author1 = $pres->getCommentAuthors()->addAuthor("Author_1", "A.A.");
    $comment1 = $author1->getComments()->addComment("comment1", $pres->getSlides()->get_Item(0), new Point2DFloat(10, 10), new Java("java.util.Date"));
    # 为 comment1 添加回复
    $author2 = $pres->getCommentAuthors()->addAuthor("Autror_2", "B.B.");
    $reply1 = $author2->getComments()->addComment("reply 1 for comment 1", $pres->getSlides()->get_Item(0), new Point2DFloat(10, 10), new Java("java.util.Date"));
    $reply1->setParentComment($comment1);
    # 为 comment1 添加另一个回复
    $reply2 = $author2->getComments()->addComment("reply 2 for comment 1", $pres->getSlides()->get_Item(0), new Point2DFloat(10, 10), new Java("java.util.Date"));
    $reply2->setParentComment($comment1);
    # 为已有回复添加回复
    $subReply = $author1->getComments()->addComment("subreply 3 for reply 2", $pres->getSlides()->get_Item(0), new Point2DFloat(10, 10), new Java("java.util.Date"));
    $subReply->setParentComment($reply2);
    $comment2 = $author2->getComments()->addComment("comment 2", $pres->getSlides()->get_Item(0), new Point2DFloat(10, 10), new Java("java.util.Date"));
    $comment3 = $author2->getComments()->addComment("comment 3", $pres->getSlides()->get_Item(0), new Point2DFloat(10, 10), new Java("java.util.Date"));
    $reply3 = $author1->getComments()->addComment("reply 4 for comment 3", $pres->getSlides()->get_Item(0), new Point2DFloat(10, 10), new Java("java.util.Date"));
    $reply3->setParentComment($comment3);
    # 在控制台显示评论层次结构
    $slide = $pres->getSlides()->get_Item(0);
    $comments = $slide->getSlideComments(null);
    for($i = 0; $i < java_values($Array->getLength($comments)) ; $i++) {
      $comment = $comments[$i];
      while (!java_is_null($comment->getParentComment())) {
        System->out->print("\t");
        $comment = $comment->getParentComment();
      } 
      echo($comments[$i]->getAuthor()->getName() . " : " . $comments[$i]->getText());
      echo();
    }
    $pres->save("parent_comment.pptx", SaveFormat::Pptx);
    # 删除 comment1 及其所有回复
    $comment1->remove();
    $pres->save("remove_comment.pptx", SaveFormat::Pptx);
  } finally {
    if (!java_is_null($pres)) {
      $pres->dispose();
    }
  }

添加现代评论

2021 年,Microsoft 在 PowerPoint 中引入了现代评论。现代评论功能显著提升了 PowerPoint 的协作能力。通过现代评论,PowerPoint 用户可以更轻松地解决评论、将评论锚定到对象和文本,以及进行交互。

Aspose Slides 通过 ModernComment 类支持现代评论。已在 CommentCollection 类中添加了 addModernCommentinsertModernComment 方法。

下面的 PHP 代码演示如何向 PowerPoint 演示文稿的幻灯片添加现代评论:

  $pres = new Presentation();
  try {
    $newAuthor = $pres->getCommentAuthors()->addAuthor("Some Author", "SA");
    $modernComment = $newAuthor->getComments()->addModernComment("This is a modern comment", $pres->getSlides()->get_Item(0), null, new Point2DFloat(100, 100), new Java("java.util.Date"));
    $pres->save("pres.pptx", SaveFormat::Pptx);
  } finally {
    if (!java_is_null($pres)) {
      $pres->dispose();
    }
  }

删除评论

删除所有评论和作者

下面的 PHP 代码演示如何删除演示文稿中的所有评论和作者:

  $presentation = new Presentation("example.pptx");
  try {
    # 删除演示文稿中的所有评论
    foreach($presentation->getCommentAuthors() as $author) {
      $author->getComments()->clear();
    }
    # 删除所有作者
    $presentation->getCommentAuthors()->clear();
    $presentation->save("example_out.pptx", SaveFormat::Pptx);
  } finally {
    if (!java_is_null($presentation)) {
      $presentation->dispose();
    }
  }

删除特定评论

下面的 PHP 代码演示如何删除幻灯片上的特定评论:

  $presentation = new Presentation();
  try {
    $slide = $presentation->getSlides()->get_Item(0);
    # 添加评论...
    $author = $presentation->getCommentAuthors()->addAuthor("Author", "A");
    $author->getComments()->addComment("comment 1", $slide, new Point2DFloat(0.2, 0.2), new Java("java.util.Date"));
    $author->getComments()->addComment("comment 2", $slide, new Point2DFloat(0.3, 0.2), new Java("java.util.Date"));
    # 删除所有包含 "comment 1" 文本的评论
    foreach($presentation->getCommentAuthors() as $commentAuthor) {
      $toRemove = new Java("java.util.ArrayList");
      foreach($slide->getSlideComments($commentAuthor) as $comment) {
        if ($comment->getText()->equals("comment 1")) {
          $toRemove->add($comment);
        }
      }
      foreach($toRemove as $comment) {
        $commentAuthor->getComments()->remove($comment);
      }
    }
    $presentation->save("pres.pptx", SaveFormat::Pptx);
  } finally {
    if (!java_is_null($presentation)) {
      $presentation->dispose();
    }
  }

常见问题

Aspose.Slides 是否支持现代评论的“已解决”状态?

是的。Modern comments 提供了 setStatus 方法;您可以设置 comment’s state(例如标记为已解决),此状态会保存在文件中并被 PowerPoint 识别。

是否支持线程式讨论(回复链),以及是否有限制嵌套层级?

是的。每条评论都可以引用其 parent comment,实现任意深度的回复链。API 未声明具体的嵌套深度限制。

评论标记在幻灯片上的位置使用哪种坐标系定义?

该位置以浮点坐标点存储在幻灯片的坐标系中。这使您能够将评论标记精确放置在所需位置。