Vertical text inside table headers using a JavaScript-based SVG library

javascript, jqgrid, jquery, svg

Solution

Here's a working jsfiddle that does it. It should work in IE 6, I only used jquery and raphael js. I made static sizes for the raphael drawing area and the text, but you can certainly do a little math to figure out dynamic sizes:

http://jsfiddle.net/UYj58/9/

Code looks like this if you include jquery and raphael:

$(document).ready(function(){
    var font = {font: '12px Helvetica, Arial'};
    var fill = {fill: "hsb(120deg, .5, 1)"}
    $('tr th div').each(function (index, div){
        R = Raphael($(div).attr('id'), 20, 100);
        R.text(4, 50, $(div).find('span').text())
            .attr(font)
            .attr(fill)
            .rotate(-90, true);
        $(div).find('span').hide();
    });
});

And the HTML looks like this:

<table>
    <thead>
        <tr>
            <th><div id="columnOne"><span>heading one</span></div></th>
            <th><div id="columnTwo"><span>heading two</span></div></th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td>1</td>
            <td>2</td>
        </tr>
        <tr>
            <td>4</td>
            <td>5</td>
        </tr>
    </tbody>
</table>

Oh, and I used this as my example: http://raphaeljs.com/text-rotation.html

Problem

I use jqGrid with many columns containing boolean information, which are displayed as checkboxes inside the table (see http://www.ok-soft-gmbh.com/VerticalHeaders/TestFixedO.htm as an example). To display information more compactly I use vertical column headers. It works very well and works in jqGrid in all browsers (see my discussion with Tony Tomov in jqGrid forum http://www.trirand.com/blog/?page_id=393/feature-request/headers-with-vertical-orientation/), but in IE vertical text is blurred and doesn't look nice enough (open the link above in IE and you will see exactly what I mean). I was asked from users why the text displayed so strangely. So I'm thinking of using a JavaScript-based SVG library like SVG Web ( http://code.google.com/p/svgweb/ ) or Raphaël ( http://raphaeljs.com/ ). SVG is very powerful and it is difficult to find a good example. I need only to display vertical text (-90 grad, from the bottom up) and use if possible without working in mode of absolute positioning. So one more time my question: I need to have a possibility to display vertical text (-90 grad rotation) inside `<td>` elements of a table header. I want to use a JavaScript-based SVG library like SVG Web or Raphaël. The solution must support IE6. Does anybody have a good reference example which could help me do this? If somebody posts a whole solution of the problem I would be happy. To be exact here is my current solution: I define ``` .rotate { -webkit-transform: rotate(-90deg); /* Safari 3.1+, Chrome */ -moz-transform: rotate(-90deg); /* Firefox 3.5+ */ -o-transform: rotate(-90deg); /* Opera starting with 10.50 */ /* Internet Explorer: */ filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=3); /* IE6, IE7 */ -ms-filter: "progid:DXImageTransform.Microsoft.BasicImage(rotation=3)" /* IE8 */; } ``` define `RotateCheckboxColumnHeaders` function ``` var RotateCheckboxColumnHeaders = function (grid, headerHeight) { // we use grid as context (if one have more as one table on tnhe page) var trHead = $("thead:first tr", grid.hdiv); var cm = grid.getGridParam("colModel"); $("thead:first tr th").height(headerHeight); headerHeight = $("thead:first tr th").height(); for (var iCol = 0; iCol < cm.length; iCol++) { var cmi = cm[iCol]; if (cmi.formatter === 'checkbox') { // we must set width of column header div BEFOR adding class "rotate" to // prevent text cutting based on the current column width var headDiv = $("th:eq(" + iCol + ") div", trHead); headDiv.width(headerHeight).addClass("rotate"); if (!$.browser.msie) { if ($.browser.mozilla) { headDiv.css("left", (cmi.width - headerHeight) / 2 + 3).css("bottom", 7); } else { headDiv.css("left", (cmi.width - headerHeight) / 2); } } else { var ieVer = jQuery.browser.version.substr(0, 3); // Internet Explorer if (ieVer !== "6.0" && ieVer !== "7.0") { headDiv.css("left", cmi.width / 2 - 4).css("bottom", headerHeight / 2); $("span", headDiv).css("left", 0); } else { headDiv.css("left", 3); } } } } }; ``` And include a call like `RotateCheckboxColumnHeaders(grid, 110);` after creating jqGrid.

Original source

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