javascript – 在形状中包装文本

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有没有办法为rhomboit文本块创建标记,其中每个新行都偏离前一个.

我找不到任何解决方案.可能为此我需要一些javascript.

解决方法:

据我所知,目前还没有跨浏览器的css方法来做到这一点.所以我戴上了我的创意帽并为你写了一些东西.

function rhomboit(obj, offset) {
    var invert = false;
    if(offset < 0){
        offset = Math.abs(offset);
        invert = true;
    }
    var line_height = getLineHeight(obj);
    var els = document.querySelectorAll('.rhombus_side');
    for (var i = 0; i < els.length; i++) {
        els[i].parentNode.removeChild(els[i]);
    }
    var new_height = heightWithOffset(obj, offset);
    var total_lines;
    var line_offset;
    while (true) {
        total_lines = Math.ceil(new_height / line_height);
        line_offset = offset / (total_lines);
        var next_height = heightWithOffset(obj, offset + line_offset);
        if (next_height === new_height) break;
        new_height = next_height;
    }
    for (var i = 0; i < total_lines; i++) {
        var left_offset = line_offset * (i + 1);
        var right_offset = offset - left_offset + line_offset;
        if(invert){
            var hold = left_offset;
            left_offset = right_offset;
            right_offset = hold;
        }
        var div = document.createElement('div');
        div.className = 'rhombus_side';
        div.style.width = left_offset + 'px';
        div.style.height = line_height + 'px';
        div.style.float = 'left';
        div.style.clear = 'left';
        //div.style.backgroundColor = 'red';
        obj.insertBefore(div, obj.firstChild);
        div = document.createElement('div');
        div.className = 'rhombus_side';
        div.style.width = right_offset + 'px';
        div.style.height = line_height + 'px';
        div.style.float = 'right';
        div.style.clear = 'right';
        //div.style.backgroundColor = 'blue';
        obj.insertBefore(div, obj.firstChild);
    }
}

function heightWithOffset(obj, offset) {
    var old_padding_left = obj.style.paddingLeft;
    obj.style.paddingLeft = (offset + 1) + 'px';
    var new_height = obj.clientHeight;
    obj.style.paddingLeft = old_padding_left;
    return new_height;
}

function getLineHeight(element) {
    //Thank you : https://stackoverflow.com/a/4515470/482197
    var temp = document.createElement(element.nodeName);
    temp.setAttribute("style", "border:0;margin:0px;padding:0px;font-family:" + element.style.fontFamily + ";font-size:" + element.style.fontSize);
    temp.innerHTML = "test";
    temp = element.parentNode.appendChild(temp);
    var ret = temp.clientHeight;
    temp.parentNode.removeChild(temp);
    return ret;
}
//Below this is just my showing it with positive and negative offsets
var last_offset = 150;
function toggleRhombus(){
    last_offset *= -1;
    rhomboit(document.getElementById('rhombus'), last_offset);
    setTimeout(function(){toggleRhombus()},5000);
}
toggleRhombus();

<div id='rhombus' style='border:1px solid black;text-align:justify'>This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text This is text</div>

小提琴：http://jsfiddle.net/trex005/benjkr05/

>我无法宣称它的效率令人难以置信,但它完成了工作.
>必须在px中指定偏移量.
>您可能希望在文档调整大小时再次调用它.

如果要查看其工作原理,请取消注释两个样式行

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