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吕震中本:你们要改变树木的行距吗?

tree gwt css java

Epaga Alex Reynolds · 技术社区 · 15 年前

<div class="gwt-Tree">
    <div style="padding-top: 3px; padding-right: 3px;
                padding-bottom: 3px; margin-left: 0px;
                padding-left: 23px;">
         <div style="display:inline;" class="gwt-TreeItem">
              <table>
                   ...
              </table>
         </div>
    </div>
    <div ...>
    </div>
    ...
</div>

我的问题是:我应该如何更改单个树行的填充?我想我可以做一些类似于设置CSS规则的事情 .gwt-Tree > div

 .gwt-Tree > div:first-child { 
      width: 0px !important; 
      height: 0px !important; 
      margin: 0px !important; 
      padding: 0px !important; 
 } 

 .gwt-Tree > div {
      padding: 0px 5px !important;
 }

 .gwt-Tree > div[hidefocus=true] {
      width: 0px !important;
      height: 0px !important;

      margin: 0px !important;
      padding: 0px !important;
 }

3 回复 | 直到 15 年前

easwee 15 年前

你可以这样做:

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Test</title>
    <style type="text/css">
    .gwt-Tree {background:green;}
    .gwt-Tree div {padding-top: 3px; padding-right: 3px;padding-bottom: 3px; margin-left: 0px;padding-left: 23px;background:gray;}
    .gwt-Tree div .gwt-TreeItem {padding:0;margin:0;background:red;color:#fff;}
    </style> 
</head>
<body>
<div class="gwt-Tree">
    <div>
         <div class="gwt-TreeItem">
            random
         </div>
    </div>
    <div>
         <div class="gwt-TreeItem">
            random
         </div>
    </div>
</div> 
</body>
</html>

chux 13 年前

我也遇到了同样的问题,并试图用CSS来解决它,但没有运气。最后,我成功地更改了java代码中的顶部和底部填充:

/**
    * handle top and bottom padding issue of leafs the grandparent DOM element (div) has disturbing top and bottom
    * padding of 3px, which is changed here to 0px
    * 
    * @param uiObject
    *           uiObject which is a leaf in the tree
    */
   private static void correctStyle(final UIObject uiObject) {
      if (uiObject instanceof TreeItem) {
         if (uiObject != null && uiObject.getElement() != null) {
            Element element = uiObject.getElement();
            element.getStyle().setPaddingBottom(0, Unit.PX);
            element.getStyle().setPaddingTop(0, Unit.PX);
         }
      } else {
         if (uiObject != null && uiObject.getElement() != null && uiObject.getElement().getParentElement() != null
               && uiObject.getElement().getParentElement().getParentElement() != null
               && uiObject.getElement().getParentElement().getParentElement().getStyle() != null) {
            Element element = uiObject.getElement().getParentElement().getParentElement();
            element.getStyle().setPaddingBottom(0, Unit.PX);
            element.getStyle().setPaddingTop(0, Unit.PX);
         }
      }
   }

Anchor fileDownloadLink = new Anchor();
fileDownloadLink.setStyleName(ViewConstants.STYLE_LINK_FILE_DOWNLOAD);
fileDownloadLink.setText(subSubStructure.getName());
fileDownloadLink.setHref(ViewConstants.HREF_DOWNLOAD_FILE_EXTRACTED_DATA + subSubStructure.getPath());
treeItem.addItem(fileDownloadLink);
StyleCorrector.correctStyle(fileDownloadLink);

Carnell 15 年前

我看了一下GWT Tree Documentation

CSS样式规则

.gwt树
树本身

.gwt树.gwt树
树项目

选定的树项目

你可能想把填充物加到 .gwt树.gwt树 已选择.gwt树.gwt树项目