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Difference in reported size width

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	Difference in reported size width by Jim Hunter-2 :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message I am wondering how to accurately get the width of an object prior to it getting rendered? I have an object that I am 'building' that is a composite of a few controls (TextArea, Button, Label) and a few containers. Part of the object is a qx.ui.basic.Label that I need to know how wide it is to calculate some things. When I use this line, prior to rendering I get 69 as the width: this.theCaption.getSizeHint()['width'] But if I issue that same call after it gets rendered, the width is reported as 62. So all of my calculations are off by 7. I am not changing the font of the label after creating it so that can't be the issue. Is there a better way to get the width of the label? Thanks, Jim ------------------------------------------------------------------------------ Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge _______________________________________________ qooxdoo-devel mailing list qooxdoo-devel@... https://lists.sourceforge.net/lists/listinfo/qooxdoo-devel
	Re: Difference in reported size width by Fabian Jakobs :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message Hi Jim, the size hint computes the preferred size of the widgets. This is computed for each widget in the first pass of the layout process. The second pass starts from the root widget and renders the widget based on their size hints and the available size. That's why the size hint can differ from the computed size. On way to get the computed size is listening to the "resize" event. This event is fired after the final size has been computed by the layout system. I hope this helps, Fabian Jim Hunter schrieb: > I am wondering how to accurately get the width of an object prior to > it getting rendered? > > I have an object that I am 'building' that is a composite of a few > controls (TextArea, Button, Label) and a few containers. Part of the > object is a qx.ui.basic.Label that I need to know how wide it is to > calculate some things. When I use this line, prior to rendering I get > 69 as the width: > > this.theCaption.getSizeHint()['width'] > > But if I issue that same call after it gets rendered, the width is > reported as 62. So all of my calculations are off by 7. I am not > changing the font of the label after creating it so that can't be the > issue. Is there a better way to get the width of the label? > > Thanks, > Jim -- Fabian Jakobs JavaScript Framework Developer 1&1 Internet AG - Web Technologies Ernst-Frey-Straße 9 · DE-76135 Karlsruhe Telefon: +49 721 91374-6784 fabian.jakobs@... Amtsgericht Montabaur / HRB 6484 Vorstände: Henning Ahlert, Ralph Dommermuth, Matthias Ehrlich, Thomas Gottschlich, Robert Hoffmann, Markus Huhn, Hans-Henning Kettler, Dr. Oliver Mauss, Jan Oetjen Aufsichtsratsvorsitzender: Michael Scheeren ------------------------------------------------------------------------------ Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge _______________________________________________ qooxdoo-devel mailing list qooxdoo-devel@... https://lists.sourceforge.net/lists/listinfo/qooxdoo-devel
	Re: Difference in reported size width by Jim Hunter :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message Thanks, I had found a work around by doing my positioning in the 'appear' event and it seems to work without any noticeable movement of the controls. But I think I will take your advice and move that to the resize event instead. Thanks, Jim On Fri, Jul 10, 2009 at 7:56 AM, Fabian Jakobs <fabian.jakobs@...> wrote: Hi Jim, the size hint computes the preferred size of the widgets. This is computed for each widget in the first pass of the layout process. The second pass starts from the root widget and renders the widget based on their size hints and the available size. That's why the size hint can differ from the computed size. On way to get the computed size is listening to the "resize" event. This event is fired after the final size has been computed by the layout system. I hope this helps, Fabian Jim Hunter schrieb: > I am wondering how to accurately get the width of an object prior to > it getting rendered? > > I have an object that I am 'building' that is a composite of a few > controls (TextArea, Button, Label) and a few containers. Part of the > object is a qx.ui.basic.Label that I need to know how wide it is to > calculate some things. When I use this line, prior to rendering I get > 69 as the width: > > this.theCaption.getSizeHint()['width'] > > But if I issue that same call after it gets rendered, the width is > reported as 62. So all of my calculations are off by 7. I am not > changing the font of the label after creating it so that can't be the > issue. Is there a better way to get the width of the label? > > Thanks, > Jim -- Fabian Jakobs JavaScript Framework Developer 1&1 Internet AG - Web Technologies Ernst-Frey-Straße 9 · DE-76135 Karlsruhe Telefon: +49 721 91374-6784 fabian.jakobs@... Amtsgericht Montabaur / HRB 6484 Vorstände: Henning Ahlert, Ralph Dommermuth, Matthias Ehrlich, Thomas Gottschlich, Robert Hoffmann, Markus Huhn, Hans-Henning Kettler, Dr. Oliver Mauss, Jan Oetjen Aufsichtsratsvorsitzender: Michael Scheeren ------------------------------------------------------------------------------ Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge _______________________________________________ qooxdoo-devel mailing list qooxdoo-devel@... https://lists.sourceforge.net/lists/listinfo/qooxdoo-devel ------------------------------------------------------------------------------ Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge _______________________________________________ qooxdoo-devel mailing list qooxdoo-devel@... https://lists.sourceforge.net/lists/listinfo/qooxdoo-devel