My idea is that we'd keep the classes around, so if I create a div that uses 15pt monospace, there would be a class for that. I'd only create it the first time around, after that, I'd look up the class name and just jam it in:

var fontclass = findClassForFont(style, variant, weight, size, lineHeight, family);
  div.className = 'lzswftext ' + fontclass;

And when switching from single to multiline I would be able to just reuse the "type style" class, doing something like:

newdiv.className = olddiv.className.replace('lzswftext', 'lzswftextmultiline'); // leave the type style class alone.


On 2009-10-14, at 09:59, Henry Minsky wrote:

What would be the advantage? making it cleaner to apply and remove these properties as a group? I don't think it would help with speed because it would cost you as much time and space to cons up the new class as to frob
the properties directly on the div...

On Wed, Oct 14, 2009 at 9:55 AM, P T Withington <p...@laszlosystems.com>wrote:

Ok, here's another idea, maybe too whacky:

Instead of smacking styles into divs, what if we dynamically created a CSS class style rule for each case? We already have some of this mechanism in the measurement cache. At least for the various text attributes we could do something like, accumulate all the text style properties, build a CSS rule, assign it to a (generated) class name, and add that class name to the div's class (you can have multiple classes apply to a div, they are separated by
spaces).

We'd still use individual styles for position/overflow/width/height/ clip,
but for the styles that affect text, bundle them into a class.


On 2009-10-14, at 09:37, Henry Minsky wrote:

In Firefox, asking for cssText gives you this

lzx> foo.sprite.__LzInputDiv.style.cssText
'overflow: scroll; font-family: monospace; width: 415px; height: 115px;'
lzx>

But in IE7 you get no font info
lzx> foo.sprite.__LzInputDiv.style.cssText
'OVERFLOW: scroll; WIDTH: 417px; CLIP: rect(auto auto auto auto); HEIGHT:
117px'
lzx>


On Wed, Oct 14, 2009 at 9:29 AM, Henry Minsky <henry.min...@gmail.com
wrote:

That apparently does not work in IE7 for some reason...

On Wed, Oct 14, 2009 at 9:25 AM, P T Withington <p...@laszlosystems.com
wrote:

I don't follow.  setMultiline copies _all_ of the div styles over:

    lz.embed.__setAttr(newdiv, 'style', olddiv.style.cssText);

(in addition to the scroll position).  So, something else is going
wrong...


On 2009-10-14, at 08:22, Max Carlson wrote:

Yes, I think it needs to copy the necessary fontstyles over. Right now

LzInputTextSprite#setMultiline() only preserves the text contents, scrollLeft and scrollTop. The necessary styles should be preserved in:
LzInputTextSprite.prototype.__fontStyle = 'normal';
LzInputTextSprite.prototype.__fontWeight = 'normal';
LzInputTextSprite.prototype.__fontSize = '11px';
LzInputTextSprite.prototype.__fontFamily = 'Verdana,Vera,sans- serif';

I'd avoid copying the entire CSS style - that's pretty risky.

Henry Minsky wrote:

I'm trying to figure out why the font is changing back to the default
font when an input field
is set to multiline in IE7/DHTML.
The code in LzInputTextSprite.setMultiline does create a new div, with
_createInputDiv, does that need to
copy the font styles over?
<canvas>
<inputtext id="foo" width="400" x="14" name="foo" font="monospace"
fontsize="11" fontstyle="plain"
        multiline="false"
        text="${canvas.runtime}"
        bgcolor="#ccffcc"
        onclick="   setAttribute('multiline', true);
this.setAttribute('height', 100); "/>
</canvas>
--
Henry Minsky
Software Architect
hmin...@laszlosystems.com <mailto:hmin...@laszlosystems.com>


--
Regards,
Max Carlson
OpenLaszlo.org





--
Henry Minsky
Software Architect
hmin...@laszlosystems.com





--
Henry Minsky
Software Architect
hmin...@laszlosystems.com





--
Henry Minsky
Software Architect
hmin...@laszlosystems.com

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