2017-04-25 14:41:48 +02:00
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H1 {color: black }
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</HEAD>
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2024-01-09 22:37:00 +01:00
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<TITLE>Magic-8.3 Command Reference</TITLE>
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2017-04-25 14:41:48 +02:00
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<BODY BACKGROUND=graphics/blpaper.gif>
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2024-01-09 22:37:00 +01:00
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<H1> <IMG SRC=graphics/magic_title8_3.png ALT="Magic VLSI Layout Tool Version 8.3">
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2017-04-25 14:41:48 +02:00
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<IMG SRC=graphics/magic_OGL_sm.gif ALIGN="top" ALT="*"> </H1>
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<H2>cursor</H2>
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<HR>
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Return <B>magic</B> internal coordinates of the cursor (X11 pointer)
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<HR>
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<H3>Usage:</H3>
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<BLOCKQUOTE>
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2022-01-21 16:44:13 +01:00
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<B>cursor</B> <I>glyphnum</I> <BR><BR>
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<B>cursor</B> [<B>internal</B>|<B>lambda</B>|<B>user</B>] <BR><BR>
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<B>cursor</B> [<B>microns</B>|<B>window</B>|<B>screen</B>]
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2017-04-25 14:41:48 +02:00
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</BLOCKQUOTE>
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<H3>Summary:</H3>
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<BLOCKQUOTE>
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2022-01-21 16:44:13 +01:00
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The <B>cursor</B> command has two distinct uses. When followed
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by an integer value, the cursor glyph is changed to the indicated
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glyph, as defined internally to Magic. <BR>
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When used without an option, or when followed by a measurement
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metric "internal", "lambda", or "user", the <B>cursor</B> command
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returns the current position of the cursor (the X11 pointer, not
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the <B>magic</B> cursor box) in layout coordinates. The coordinates
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are given in the indicated metric, or in internal units by default. <P>
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Magic version 8.1 defines the additional option "<B>microns</B>",
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which is like the metrics mentioned above bug returns the current
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position of the cursor in micron units, where the scalefactor for
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determining micron units is defined by the current CIF/GDS output
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style. <P>
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Magic version 8.1 also defines two options for returning pixel
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coordinates: Option "<B>window</B>" returns the pointer coordinate
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in pixels from the bottom left-hand corner of the layout window.
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Option "<B>screen</B>" returns the pointer coordinate in pixels
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relative to the root screen. In X11, this is defined as the top
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left-hand corner of the screen. This second form is useful for
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interacting with the window manager, for example, to open up a new
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window or drop-down menu next to the pointer position.
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2017-04-25 14:41:48 +02:00
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</BLOCKQUOTE>
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<H3>Implementation Notes:</H3>
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<BLOCKQUOTE>
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<B>cursor</B> is implemented as a built-in window command in <B>magic</B>.
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In the Tcl version of magic, it returns a Tcl result (list of two
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elements, <B>x</B> and <B>y</B> coordinates). <P>
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Like all window commands, it reports relative to the existing window
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if only one window is present, or the active window if called with
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the "<TT>:</TT>" macro. Otherwise, it must be called using the
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<I>tk_path_name</I> command to specify relative to which layout
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2022-01-21 16:44:13 +01:00
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window the cursor coordinates will be given. <P>
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The value returned by <B>cursor</B> may be modified according to the
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state set by the <B>snap</B> command. <B>cursor user</B> reports
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units relative to the grid set by the <B>grid</B> command, which may
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differ in aspect between the X and Y axes. <P>
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Note, as stated above, which versions of magic support which options. <P>
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2017-04-25 14:41:48 +02:00
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</BLOCKQUOTE>
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<H3>See Also:</H3>
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<BLOCKQUOTE>
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2022-01-21 16:44:13 +01:00
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<A HREF=snap.html><B>snap</B></A> <BR>
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<A HREF=grid.html><B>grid</B></A> <BR>
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2017-04-25 14:41:48 +02:00
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<A HREF=tk_path_name.html><I>tk_path_name</I></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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2022-01-21 16:44:13 +01:00
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<P><I>Last updated:</I> March 7, 2020 at 1:06pm <P>
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2017-04-25 14:41:48 +02:00
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