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>Screen Layout</TITLE
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><DIV
CLASS="CHAPTER"
><H1
><A
NAME="CONFIG-TOOL-SCREEN-LAYOUT">Chapter 18. Screen Layout</H1
><P
>The following windows are available within the
<SPAN
CLASS="PRODUCTNAME"
>eCos</SPAN
> <SPAN
CLASS="APPLICATION"
> Configuration
Tool</SPAN
>:
</P
><P
></P
><UL
><LI
><P
> Configuration Window</P
></LI
><LI
><P
> Properties Window</P
></LI
><LI
><P
> Short Description</P
></LI
><LI
><P
> Conflicts</P
></LI
><LI
><P
> Output</P
></LI
></UL
><P
>The layout of the windows may be adjusted to suit your
preferences: see <A
HREF="config-tool-settings.html"
>the Section called <I
>Settings</I
> in Chapter 17</A
>.</P
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="CONFIG-TOOL-CONFIGURATION-WINDOW">Configuration Window</H1
><P
>This is the principal window used to configure <SPAN
CLASS="PRODUCTNAME"
>eCos</SPAN
>. It
takes the form of a tree-based representation of the
configuration items within the currently loaded <SPAN
CLASS="PRODUCTNAME"
>eCos</SPAN
>
packages.</P
><P
>In the case of items whose values may be changed,
controls are available to set the item values. These either
take the form of check boxes or radio buttons within the
tree itself or cells to the right of the thin vertical
splitter bar. Controls in the tree may be used in the usual
way; cells, however, must first be activated.</P
><P
>To activate a cell, simply click on it: it will assume a sunken
appearance and data can then be edited in the cell. To terminate
in-cell editing, click elsewhere in the configuration window or
press <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>ENTER</I
></SPAN
>. To discard the partial results
of in-cell editing and revert to the previous value, press <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>ESCAPE</I
></SPAN
>.</P
><P
><P
><IMG
SRC="pix/configwin.png"></P
></P
><P
>Cells come in three varieties, according to the type of
data they accept:</P
><DIV
CLASS="TABLE"
><A
NAME="AEN1273"><P
><B
>Table 18-1. Cell types</B
></P
><TABLE
BORDER="1"
CLASS="CALSTABLE"
><THEAD
><TR
><TH
ALIGN="LEFT"
VALIGN="TOP"
>Cell Type</TH
><TH
ALIGN="LEFT"
VALIGN="TOP"
><P
>Data Accepted</P
></TH
></TR
></THEAD
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Integer</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Decimal or hexadecimal values</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Floating Point</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Floating point values</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>String</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Any</TD
></TR
></TBODY
></TABLE
></DIV
><P
>In the case of string cells, you can double-click the cell
to display a dialog box containing a larger region in which to edit
the string value. This is useful in the case of long strings, or
those spanning multiple lines.</P
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN1292">Disabled items</H2
><P
>Some items will appear disabled. In this case the item
label and any associated controls and cells will be
grayed. It is not be possible to change the values of
disabled items.</P
><DIV
CLASS="SECT3"
><H3
CLASS="SECT3"
><A
NAME="AEN1295">Right-Clicking</H3
><P
>You can right-click on an item in the configuration
window item to display a pop-up menu which (depending on
the type of the item selected) allows you to:</P
><P
></P
><UL
><LI
><P
> <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Properties</I
></SPAN
> –
information relating to the currently selected item
is displayed. The information is equivalent to that
displayed in the Properties
Window.</P
></LI
><LI
><P
> <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Restore Defaults</I
></SPAN
> -
the default value of the currently selected item is
restored.</P
></LI
><LI
><P
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Visit Documentation</I
></SPAN
>
- causes the HTML page most closely relating to the
currently selected item to be displayed. This has
the same effect as double-clicking the URL property
in the Properties Window.</P
></LI
><LI
><P
> <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>View Header File</I
></SPAN
>
– this causes the file containing the items to
be displayed. This is equivalent to double-clicking
on the File property in the Properties Window. The
viewer used for this purpose may be changed using
the <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>View->Settings</I
></SPAN
> menu item
(see <A
HREF="config-tool-settings.html"
>the Section called <I
>Settings</I
> in Chapter 17</A
>).
Note that this operation is only possible when the
current configuration is saved, in order to avoid
the possibility of changing the source
repository.</P
></LI
><LI
><P
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Unload Package</I
></SPAN
> -
this is equivalent to using the
<SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Build->Packages</I
></SPAN
> menu item to
select and unload the package in
question.</P
></LI
></UL
></DIV
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN1317">Conflicts Window</H2
><P
>This window exists to display any configuration item
conflicts. Conflicts are the result of failures to meet
the requirements between configuration items expressed in
the CDL. See <A
HREF="cdl-conflicts.html"
>the Section called <I
>Conflicts</I
> in Chapter 24</A
> .<P
><IMG
SRC="pix/conflictwin.png"></P
></P
><P
>The window comprises three columns:</P
><P
></P
><UL
><LI
><P
> <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Item</I
></SPAN
></P
><P
>This is the macro name of the first item involved
in the conflict.</P
></LI
><LI
><P
>
<SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Conflict</I
></SPAN
></P
><P
>This is a description of the conflict type. The currently
supported types are “unresolved”, “illegal
value”, “evaluation exception”, “goal
unsatisfied” and “bad data”.</P
></LI
><LI
><P
>
<SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Property</I
></SPAN
></P
><P
>This contains a description of the configuration
item’s property that caused the conflict.</P
><P
>Within the conflicts window you can right-click on
any item to display a context menu which allows you to
choose from one of the following options:</P
></LI
></UL
><P
>To locate the item involved in the
conflict, double-click in the first or third column, or
right-click over the item and choose <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Locate</I
></SPAN
>
from the popup menu.</P
><P
>You can use the <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Tools->Resolve Conflicts</I
></SPAN
> menu
item, or right-click over the item and select <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Resolve</I
></SPAN
> from the popup menu,
to resolve conflicts — <A
HREF="config-tool-using-templates.html#RESOLVING-CONFLICTS"
>the Section called <I
>Resolving conflicts</I
> in Chapter 19</A
>.</P
><DIV
CLASS="SECT3"
><H3
CLASS="SECT3"
><A
NAME="AEN1343">Output Window</H3
><P
>This window displays any output generated by
execution of external tools and any error messages that
are not suitable for display in other forms (for
example, as message boxes).</P
><P
>Within the output window you can right-click to display a
context menu which allows you to:</P
><P
></P
><UL
><LI
><P
>Save the contents of the window to a
file</P
></LI
><LI
><P
>Clear the contents of the
window</P
></LI
></UL
></DIV
><DIV
CLASS="SECT3"
><H3
CLASS="SECT3"
><A
NAME="AEN1352">Properties Window</H3
><P
>This window displays the CDL properties of the item
currently selected in the configuration window. The same
information may be displayed by right-clicking the item
and selecting “properties”.</P
><P
> <P
><IMG
SRC="pix/propwin.png"></P
></P
><P
>Two properties may be double-clicked as
follows:</P
><P
></P
><UL
><LI
><P
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>URL</I
></SPAN
> –
double-clicking on a URL property causes the
referenced HTML page to be displayed. This has the
same effect as right-clicking on the item and
choosing “Visit
Documentation”.</P
></LI
><LI
><P
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>File</I
></SPAN
> –
double-clicking on a File property in a saved
configuration causes the File to be displayed. The
viewer used for this purpose may be changed using
the <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>View->Settings</I
></SPAN
> menu
item. Note that this operation is only possible when
the current configuration is saved, in order to
avoid the possibility of changing the source
repository.</P
></LI
></UL
></DIV
><DIV
CLASS="SECT3"
><H3
CLASS="SECT3"
><A
NAME="AEN1366">Short Description Window</H3
><P
>This window displays a short description of the item
currently selected in the configuration window. More
extensive documentation may be available by
right-clicking on the item and choosing “Visit
Documentation”.</P
></DIV
></DIV
></DIV
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