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List:       koffice-devel
Subject:    Re: When is a shape loaded?
From:       Yue Liu <opuspace () gmail ! com>
Date:       2010-08-09 6:57:23
Message-ID: AANLkTimhcqRuOS_K858cMDsV6zR0+vTZbrkc9zbiB7YV () mail ! gmail ! com
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Well I just guess it maybe slow. I haven't started creating useful odg
stencil files. I think we need some artists for help.

On Mon, Aug 9, 2010 at 2:37 PM, Thomas Zander <zander@kde.org> wrote:
> Hey Yue Liu,
>
> So good to hear from you again, and good to hear you are still working on the
> stencils!
> Makes me happy :)
>
> On Monday 9. August 2010 07.44.09 Yue Liu wrote:
>> I'm hacking on stencil support. Currently I use one KoStore per shape
>> to load stencils from odf files. Will all the shape be loaded at the
>> same time when Kivio starts or when you drag them to the canvas from
>> the shape selecter? I hope it's the latter, for loading too much
>> stencils at the same time seems to be slow, but the icons are defined
>> in ShapeFactory classes, the shape selecter will display them so I
>> guess the former situation happens in KOffice.
>
> First the shape plugins are loaded and they contain the KoShapeFactoryBase
> inheriting classes. This is completed before any window shows and should be
> pretty fast.
> The icon is not created in this step.
>
> The shape selector uses this information and shows that. So if you have a lot
> of stencils then you will have them shown in the shape selector. All that
> happens before any window is opened.
> The icons are loaded from disk in this step using;
>    m_icon = KIcon(iconName).pixmap(22);
> in the constructor of IconShape.
>
> If this turns out to be too slow then thats something we can easily fix by
> making the loading only happen when its first drawn. Or simply with a 2 second
> delay or something.
> I thought the icon cache should protect us from such slowness, but I have not
> benchmarked it.
>
> You said you think its too slow, can you share your findings? Maybe some numbers
> like how many stencils are there, how many icons are loaded. How long does it
> take to startup.
> --
> Thomas Zander
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>
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