Qml:使用 Text 的 elide 属性和 textFormat:RichText [英] Qml: use Text's elide property with textFormat: RichText

问题描述

我有一个带有转义 HTML 字符的 RSS 提要，我想在 Text 组件中显示该提要，在其中我使用 elide: Text.ElideRight 和 wrapMode: text.WordWrap<修剪多余的内容/代码>.

I have an RSS feed with escaped HTML characters that I want to display in a Text component where I trim the excess content with elide: Text.ElideRight and wrapMode: text.WordWrap.

虽然这对纯文本非常有效，但当我使用 textFormat: Text.RichText 时，修剪不起作用.

While this works very well for plain text, when I use textFormat: Text.RichText the trimming does not work.

我怎样才能使修剪工作，或者，如果这是不可能的，在将 HTML 绑定到文本组件之前轻松编码它?

How can I make the trimming to work or, if this is impossible, encode the HTML easily prior to binding it to the text component?

推荐答案

确实 Text 不支持 Text.RichText 的 elide.

Indeed Text doesn't support elide for Text.RichText.

Qt bug tracker上有一个bug open，第一次回复后有一个可能的解决方案，我在这里复制并粘贴以方便阅读:

There is a bug open on the Qt bug tracker, and after the first reply there is a possible solution, that I copy and paste here for an easy read:

TextEdit {
    property string htmlText: "<b>"+workingText.text+"</b>"
    text: htmlText
    width: parent.width
    onHtmlTextChanged: {elide();}
    onWidthChanged: elide();//Yes, this will be slow for dynamic resizing and should probably be turned off during animations
    function elide(){//Also, width has to be set, just like elide, or it screws up
        text = realText;
        var end = richText.positionAt(width - 28,0);//28 is width of ellipsis
        if(end != realText.length - 7)//Note that the tags need to be taken care of specially.
        text = realText.substr(0,end + 3) + '…' + '</b>';//3 is + <b>
    }
    font.pixelSize: 22
}

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