Note that ivi-shell is designed for embedded systems, and won't be implemented by traditional desktop systems. It depends on the type of application you're writing. If you want to write a traditional desktop application, ivi-shell isn't for you.
On Thu, Sep 25, 2014 at 1:32 AM, Ucan, Emre (ADITG/SW1) < [email protected]> wrote: > Hi, > > > > you can do it with weston-ivi-shell. IVI-Shell introduces layer concept to > weston. > > > > A layer is a group of surfaces which can be moved or resized together. > > > > But IVI-Shell is just an interface and you have to implement your own APIs > to use it. > > > > Wayland-IVI-Extension is a set of readily implemented APIs which are using > weston-ivi-shell. > > > > Some example APIs: > > > > *ilm_layerSetPosition * > > *“*Sets the horizontal and vertical position of the layer. Relative > position of layer’s surfaces would be maintained.” > > > > *ilm_layerSetDestinationRectangle * > > *“*Set the destination area on the display for a layer. The layer will be > scaled and positioned to this rectangle > > for rendering.” > > > > *ilm_layerSetVisibility* > > “Sets the visibility for all surfaces of a layer” > > > > *ilm_layerSetVisibility* > > “Sets the opacity for all surfaces of a layer” > > > > You can get more information from the website: > http://projects.genivi.org/wayland-ivi-extension/home > > > > If you are interested I can help you to install & use it. > > > > Best regards > > *Emre Ucan* > Software Group I (ADITG/SW1) > > Tel. +49 5121 49 6937 > > *From:* wayland-devel [mailto:[email protected]] > *On Behalf Of *Hongze Zhao > *Sent:* Donnerstag, 25. September 2014 03:49 > *To:* Jasper St. Pierre > *Cc:* wayland mailing list > *Subject:* Re: How to maintain relative position of two surfaces? > > > > I am not familiar with subsurfaces as I am new to weston. I will look at > it and see how it works. > > > > Thanks, > > Hongze > > > > On Wed, Sep 24, 2014 at 8:45 PM, Jasper St. Pierre <[email protected]> > wrote: > > This sounds like you want to use subsurfaces, then. > > Any reason you can't just draw the child surface on top of the father > surface, though? > > > > On Wed, Sep 24, 2014 at 6:16 PM, Hongze Zhao <[email protected]> wrote: > > Hi Jasper, > > > > Thanks for reply. > > > > Here is my use case. > > > > Suppose we have a client called "father", who has a larger surface called > "father surface" and a client called "child", whose smaller surface is > "child surface". The child surface should be displayed in a given relative > position above father surface and maintain their relative position. When I > move father surface, the child surface will be moved together. But the > child surface cannot be moved. Thus the child surface will looks like a > part of father surface. I just need it works in the simplest scenario. I > assume the two surfaces is in the same workspace, both surfaces cannot be > resized, maximized or fullscreened. The two clients and compositor should > work together to achieve this goal. > > > > I know this is a weird use case. I am just wondering if there is some > natural or easy way to implement this functionality. Or I have to do a lot > of modifications. > > > > Thanks, > > Hongze > > > > > > On Wed, Sep 24, 2014 at 7:54 PM, Jasper St. Pierre <[email protected]> > wrote: > > The only way to position surfaces relatively one to another is by using a > subsurface. But I imagine this isn't exactly what you want. > > Can you explain a bit more about your use case? What happens if I put one > surface on a different workspace from the others? Should the two be stacked > independently (e.g. your window A, my terminal, your window B)? What > happens when I resize the surfaces? Or maximize or fullscreen them? > > > > On Wed, Sep 24, 2014 at 5:49 PM, Hongze Zhao <[email protected]> wrote: > > Hi All, > > > > I am doing some experiments on weston compositor. I am wondering if > someone could give me some hints about how to maintain relative position of > two surfaces. > > > > Suppose I have two wayland clients. After I grab and move the surface of > one client, I would like to maintain the relative positions of the the > surfaces from two clients. Thus I have to automatically update the position > of the other surface. > > > > I feel that surface position is stored in an instance of weston_view, > which is mainly maintained by desktop-shell. So I am not sure if there is > some easy way to achieve my goal by modifying desktop-shell. > > > > Thanks, > > Hongze > > > > _______________________________________________ > wayland-devel mailing list > [email protected] > http://lists.freedesktop.org/mailman/listinfo/wayland-devel > > > > > -- > Jasper > > > > > > -- > > Hongze Zhao > > Department of Computer Science > > Duke University > > Email: [email protected] > > > > -- > Jasper > > > > > > -- > > Hongze Zhao > > Department of Computer Science > > Duke University > > Email: [email protected] > > _______________________________________________ > wayland-devel mailing list > [email protected] > http://lists.freedesktop.org/mailman/listinfo/wayland-devel > > -- Jasper
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