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List:       kde-core-devel
Subject:    Re: Review Request: KPixmapSequence: painting spinners made easy
From:       "Sebastian Trueg" <trueg () kde ! org>
Date:       2009-08-17 14:54:49
Message-ID: 20090817145449.6607.32067 () localhost
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> On 2009-08-17 12:35:49, Andreas Pakulat wrote:
> > Just two questions:
> > 
> > - how does this relate to KAnimatedButton, which basically does the same for a \
> > toolbutton's icon, except that one needs to have a png-sequence to get the right \
> >                 animation
> > - could I use this to overlay a spinner on top of an existing icon in a button, \
> > without knowing where exactly the icon will be drawn 
> > ?

KAnimatedButton could be implemented using the sequence painter.
I don't understand your second question: what do you mean by "without knowing where \
the icon will be drawn"? You can overlay the spinner on top of anything, also a \
button. And you can align it however you like. Typical (and default) usage would be \
centered.


- Sebastian


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This is an automatically generated e-mail. To reply, visit:
http://reviewboard.kde.org/r/1345/#review2052
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On 2009-08-17 10:21:03, Sebastian Trueg wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://reviewboard.kde.org/r/1345/
> -----------------------------------------------------------
> 
> (Updated 2009-08-17 10:21:03)
> 
> 
> Review request for kdelibs.
> 
> 
> Summary
> -------
> 
> Showing a spinner to indicate a work in progrss is a typical task. Gwenview does \
> have a nice spinner when loading images. Aurelien and I extracted the code from \
> Gwenview and molded it into three nice classes that allow to create spinners very \
> easily in any situation. At the moment the classes are used in Gwenview and in \
> Nepomuk. 
> KPixmapSequence: a simple container class that loads a sequence of pixmaps and \
>                 provides the frames through a simple interface.
> KPixmapSequenceOverlayPainter: Installs an event filter to paint a KPixmapSequence \
>                 onto any widget using Qt::Alignment or a relative placement.
> KPixmapSequenceWidget: A simple widget using the overlay painter to draw a spinner \
> while the widget is visible. 
> We propose an addition to kdeui.
> 
> 
> Diffs
> -----
> 
> trunk/KDE/kdelibs/kdeui/CMakeLists.txt 1006831 
> trunk/KDE/kdelibs/kdeui/util/kpixmapsequence.h PRE-CREATION 
> trunk/KDE/kdelibs/kdeui/util/kpixmapsequence.cpp PRE-CREATION 
> trunk/KDE/kdelibs/kdeui/util/kpixmapsequenceoverlaypainter.h PRE-CREATION 
> trunk/KDE/kdelibs/kdeui/util/kpixmapsequenceoverlaypainter.cpp PRE-CREATION 
> trunk/KDE/kdelibs/kdeui/util/kpixmapsequencewidget.h PRE-CREATION 
> trunk/KDE/kdelibs/kdeui/util/kpixmapsequencewidget.cpp PRE-CREATION 
> 
> Diff: http://reviewboard.kde.org/r/1345/diff
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Sebastian
> 
> 


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