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List:       koffice-devel
Subject:    Re: KPresenter usability review.
From:       Peter Simonsson <peter.simonsson () gmail ! com>
Date:       2005-09-29 15:41:46
Message-ID: 9966b3040509290841o1c380c8dm () mail ! gmail ! com
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2005/9/29, Thorsten Zachmann <t.zachmann@zagge.de>:
> On Tuesday 27 September 2005 21:03, Alan Horkan wrote:
> > On Tue, 27 Sep 2005, Thomas Zander wrote:
> > > On Mon, Sep 26, 2005 at 08:52:01PM +0200, Thorsten Zachmann wrote:
> > > > On Sunday 25 September 2005 21:26, Thomas Zander wrote:
>
> > > > > should snap to center of pages and center of objects when dragging
> > > > > the help lines.
> > > >
> > > > How should they snap to center of pages and center of object when
> > > > dragging? Can you explain this a little bit more detailed please, as I
> > > > have no idea what you mean by this.
> > >
> > > Same way all 'snapping' happens.  When the user drags the ruler the
> > > position of the ruler is mostly defined by the position of the mouse,
> > > except for a section of, say, 6 pixels left, or right, of the center of
> > > the page. When the mouse enters there the result will be that the ruler
> > > sits at the center itself.
> > > I also suggest you startup kivio which IIRC does this (I'm X less, so
> > > I'll try in a little)
> > >
> > > > > Additionally it would help to rename them to 'guides' and draw them
> > > > > in a different color instead of the outline they are now.
> > > >
> > > > Which color dou you propose?
> > >
> > > Red is probably best.  But a little experimentation would help.
> >
> > Kivio uses blue (the guide lines are red while being positioned but blue
> > once you release).
> >
> > This old report against Kontour wanted to be able to configure the colour
> > and style (dashes, dots) of the Guides or Help lines.
> > http://bugs.kde.org/show_bug.cgi?id=34939
> > I'm not entirely sure but I think it was because if you are using a dense
> > grid of guides the default style is too distracting.
> >
> > Karbon didn't have guides but Tim may have changed that already
> > http://bugs.kde.org/show_bug.cgi?id=108781
> >
>
> I had a look at the help lines/guide lines in kpresenter and kivio and I
> really like the implementation of the guides in kivio. I think it would be
> great if we could generalise the guide lines and move them to kolibs so that
> ever application can use them, and not everyone has to implement them in the
> application itself. If you think this is a good idea I'll start to adapt the
> sliders from kivio to be usable also for kpresenter.
>
> Here the reasons I like the guide lines in kivio. They are not so deep in the
> code as the kpresenter once are in the canvas code. They are simplier as all
> the handling of the repainting is done in the guideline. It saves a copy of
> the buffer (only the part it uses) before it paints itself over it. So the
> content of the buffer can be restored when moving them around without
> repainting all the object below. Also they don't have the problems the help
> lines in kpresenter have when you start moving you get shadows of the help
> lines which only disappear when the hole slide is repainted.
>
> Who did write the old code? There is no copyright in it. Does anyone know any
> problems with the kivio guideline implementation?
>
> Would it be ok if the guide lines are allways on top of the objects.
> kpresenter currently also supports at the moment to have them below the
> objects. What do you think?
>
> Have a nice day,
>

You have to ask the original author, Dave Marotti
<lndshark@verticaladdiction.net>, about the license but if I had to
guess it's gpl as most of the app.

--
LLaP
Peter Simonsson
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