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This patch changes the window-layout format to support the rectangular
clipping of windows at screen boundaries. The new <boundary> node defines
the clipping boundary for the windows listed within the node. Boundaries
are expected to be disjoint. In the example below, the "vbox" window is
placed partially outside the screen area of "screen_2".
<window_layout>
<boundary name="screen_1" xpos="0" ypos="0" width="640" height="480">
<window id="1" title="launchpad" xpos="10" ypos="140" width="400" height=">
</boundary>
<boundary name="screen_2" xpos="640" ypos="0" width="800" height="600">
<window id="2" title="vbox" xpos="520" ypos="52" width="800" height="600">
<window id="3" title="terminal" xpos="650" ypos="72" width="500" height="400">
</boundary>
</window_layout>
The layouter uses boundaries to restrict the visiblilty of windows to
their respective target areas.
Until now, Sculpt relied on the fact that the window-layout ROM had the
same structure as the resize-request ROM. With the addition of the
<boundary> nodes, this is no longer the case. Therefore, the Sculpt
manager generates a dedicated resize-request ROM now.
Issue #5390
This source-code repository contains genuine low-level OS components and interfaces of Genode. It solely depends on the framework's base API.