170 lines
6.6 KiB
HTML
170 lines
6.6 KiB
HTML
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<HTML>
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<HEAD>
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<STYLE type="text/css">
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H1 {color: black }
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H2 {color: maroon }
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H3 {color: #007090 }
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A.head:link {color: #0060a0 }
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A.head:visited {color: #3040c0 }
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A.head:active {color: white }
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A.head:hover {color: yellow }
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A.red:link {color: red }
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A.red:visited {color: maroon }
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A.red:active {color: yellow }
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</STYLE>
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</HEAD>
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<TITLE>Magic-7.3 Command Reference</TITLE>
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<BODY BACKGROUND=graphics/blpaper.gif>
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<H1> <IMG SRC=graphics/magic_title2.gif ALT="Magic VLSI Layout Tool Version 7.3">
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<IMG SRC=graphics/magic_OGL_sm.gif ALIGN="top" ALT="*"> </H1>
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<H2>cellmanager</H2>
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<HR>
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Invoke the cell manager GUI window
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<HR>
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<H3>Shortcuts:</H3>
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<BLOCKQUOTE>
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Menu option <I>Options->Cell Manager</I> implements the command
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<B>cellmanager create</B> in the GUI layout window. This menu
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item has a checkbox and is used both to open and to close the
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Cell Manager window.
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</BLOCKQUOTE>
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<H3>Usage:</H3>
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<BLOCKQUOTE>
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<B>cellmanager</B> [<I>option</I>] <BR><BR>
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<BLOCKQUOTE>
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where <I>option</I> is optional and may be one of the following:
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<DL>
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<DT> <B>update</B>
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<DD> The default option if no option is given. Update the
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cell manager to reflect the current state of the layout.
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<DT> <B>create</B>
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<DD> Create the cell manager window. This option is normally
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called only from the "<I>Cell Manager</I>" button in the
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<B>magic</B> GUI layout window.
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</DL>
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</BLOCKQUOTE>
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</BLOCKQUOTE>
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<H3>Summary:</H3>
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<BLOCKQUOTE>
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The <B>cellmanager</B> command is normally invoked automatically
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from inside the GUI wrapper procedures and tag callbacks, and
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normally should not be called directly from the command line.
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</BLOCKQUOTE>
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<BLOCKQUOTE>
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<CENTER>
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<IMG SRC=graphics/cellmgr.gif> <BR>
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<I>Figure 1. The Cell Manager Window</I>
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</CENTER>
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</BLOCKQUOTE>
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<BLOCKQUOTE>
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The Cell Manager window (see above) is a separate top-level window
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with Tk pathname "<B>.cellmgr</B>". It consists of a tree widget
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(defined in the Tcl package "BLT") display in the center, a message
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window and button on the bottom, and a row of menu buttons at the
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top. <P>
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The Cell Manager displays cells for everything stored in the layout
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database. As such, it is only necessary to have a single cell
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manager for all layout windows. However, commands such as "Load",
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"Edit", etc., apply to a specific window. When a new layout window
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is created, rather than generate a new Cell Manager window, the
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new window is added to the list of "target windows". The currently
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selected target window is displayed at the bottom of the Cell
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Manager. This is also a button that can be used to select a new
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target window. If only one layout window is present, the target is
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declared "default" and may be left alone. <P>
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The hierarchical tree view shows all of the <I>instances</I> (cell
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uses) in a layout. When first invoked, the top-level cell only
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is shown, with a "folder" icon showing that this cell contains
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uses. By clicking on the "+" symbol next to the folder icon,
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the tree view is expanded to show the cell instances used by the
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top-level layout cell. This expansion may continue until a cell
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instance is found that does not contain any descendents. Note that
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the name displayed is the name of the cell <I>definition</I>, with
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the instance number given in parentheses after the name. If
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the instance name is non-default (e.g., because it came from a
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3rd party vendor database or was altered with the <B>identify</B>
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command), the full name of the instance is shown in the
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parentheses. If the instance is arrayed, the array indices are
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shown in brackets ("<B>[]</B>") after the instance number or name.
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<P>
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The use of tag callbacks on commands allows the cell manager to
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be updated in response to certain commands entered on the command
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line. The cell manager will be updated in response to a
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"<B>load</B>" or "<B>getcell</B>" command. <P>
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The menu buttons perform certain functions based on the selection
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made in the tree window. These functions are as follows:
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<BLOCKQUOTE>
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<DL>
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<DT> <B>Load</B>
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<DD> load the selected cell into the window. The <B>load</B>
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command is invoked and passed the cell definition name
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of the selected cell instance. Note that this menu
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function operates on the cell <I>definition</I> of the
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selected cell <I>instance</I>.
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<DT> <B>Edit</B>
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<DD> edit the selected cell instance. The cell instance
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selected becomes the current edit cell.
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<DT> <B>Expand</B>
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<DD> expand (or unexpand, if already expanded) the selected
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cell instance.
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<DT> <B>Zoom</B>
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<DD> change the current view of the layout so that it is
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centered on the selected cell instance, and scaled so
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that the cell instance fills the screen.
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</DL>
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</BLOCKQUOTE>
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</BLOCKQUOTE>
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<H3>Implementation Notes:</H3>
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<BLOCKQUOTE>
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<B>cellmanager</B> is implemented as a Tcl procedure in the GUI wrapper
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script. Because layouts with complicated hierarchy can cause
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<B>magic</B> to run very slowly due to processing in the cell
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manager window, this window does not exist on startup and is
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deleted entirely when turned off in the "<I>Options</I>" menu of
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the GUI wrapper layout window. <P>
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<B>cellmanager</B> uses the tree display widget from the tcl package
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"BLT". Therefore, in order to see the Cell Manager window, it is
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necessary to have BLT installed on the system. If BLT is not
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installed, no option for "Cell Manager" will appear in the "Options"
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menu of the GUI wrapper window. <P>
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<B>cellmanager</B> depends on the GUI wrapper window, as it is defined
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in the wrapper script. Therefore, to use the cell manager, it is
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necessary to invoke magic with the option "<B>-w</B>".
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</BLOCKQUOTE>
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<H3>Bugs:</H3>
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<BLOCKQUOTE>
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The "<B>Expand</B>" function should expand everything above the selected
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cell. Otherwise, if something higher up in the hierarchy is unexpanded,
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the selected cell will not be expanded.
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</BLOCKQUOTE>
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<H3>See Also:</H3>
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<BLOCKQUOTE>
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<A HREF=load.html><B>load</B></A> <BR>
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<A HREF=edit.html><B>edit</B></A> <BR>
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<A HREF=expand.html><B>expand</B></A> <BR>
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<A HREF=zoom.html><B>zoom</B></A> <BR>
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</BLOCKQUOTE>
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<P><IMG SRC=graphics/line1.gif><P>
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<TABLE BORDER=0>
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<TR>
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<TD> <A HREF=commands.html>Return to command index</A>
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</TR>
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</TABLE>
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<P><I>Last updated:</I> October 6, 2004 at 12:47am <P>
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</BODY>
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</HTML>
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