Very interesting this test from the Firebug Console:
Test 1:
new qx.ui.basic.Label('david')._computePreferredInnerWidth()==38
Test 2:
var et = new qx.ui.basic.Label('david');
et.setLocation(200,200);
et.setZIndex(1000);
et.addToDocument()
et.setBackgroundColor('#ff0')
et._computePreferredInnerWidth()==26
Conclusion: the value reported depends on if the label has been added or
not.
Is this normal?
Relevant source code of Label.js:
_computeObjectNeededDimensions : function()
{
// get node
var element = this.self(arguments)._getMeasureNode();
var style = element.style;
// sync styles
var source = this._styleProperties;
style.fontFamily = source.fontFamily || "";
style.fontSize = source.fontSize || "";
style.fontWeight = source.fontWeight || "";
style.fontStyle = source.fontStyle || "";
// apply html
if (this._isHtml)
{
element.innerHTML = this._content;
}
else
{
element.innerHTML = "";
qx.dom.Element.setTextContent(element, this._content);
}
// store values
this._cachedPreferredInnerWidth = element.scrollWidth;
this._cachedPreferredInnerHeight = element.scrollHeight;
},
_computePreferredInnerWidth : function()
{
this._computeObjectNeededDimensions();
return this._cachedPreferredInnerWidth;
},
dperez wrote:
>
> Hi,
>
> In qooxdoo 0.6.6 I used to use this code for measuring the width of text:
>
> (new qx.ui.basic.Label('My text')).getPreferredBoxWidth()
>
> In qooxdoo 0.7, I receive very high values. For instance for a label
> whose measured real width is 170 pixels, a value of 240 is returned.
>
> What may be the cause of this inaccuracy?
> Is this the best method of measuring width of text?
>
> Thanx for any answer.
>
> Regards,
> David
>
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