bdfedit.help

来自「Very very small GUI. Usefull for small s」· HELP 代码 · 共 200 行

Usage:

  bdfedit [font]

Running bdfedit brings up the font editing window.  If a font was specified
on the command line, this font is loaded.  The font must be a BDF font,
and can be specified as a filename.  It may also be the name of a font, and
a fontserver, in one of the following forms:
  font@server:port
  font@server           (defaults to port 7100)
  font@                 (defaults to localhost:7100
and "font" should be the name of the font.
(In order to use this method, you must have "fstobdf" installed on your
system and in your PATH, and you must have a fontserver running somewhere.)

Fonts loaded this way will assume the filename is the same as the fontname
(without the server or port), with ".bdf" appended.

This method of specifying fonts may also be used when opening fonts with
the "Load" option in the "File" menu.

When you are specifying a filename wifh the Load or Save dialogs, you can
use tab completion similar to most Unix shells:  Hit the tab key at any
point and it will try to complete the current part of the path you are
typing, or present a list of possible completions to you.

Character Selection
-------------------
To select a character, click with mouse button 1 on the character in the
grid at the top.  The decimal character number and the character name will
be displayed above the editing area at the bottom of the window.  A red box
highlights the current character in the font grid.

Control- with the arrow keys will also alter the currently selected character.


Character Editing
-----------------
In the editing area, the mouse has the following actions:
  button 1:  draw
  button 2:  invert
  button 3:  erase

The arrow keys will move the entire editing area up or down, left or right.
As bits scroll off of one side, they appear again on the opposite side.
The editing area can also be flipped and rotated by using the menu items
under "Edit".

To apply the changes to the current character, click the "Apply" button.
Prior to applying, you can use the "Reset" button to restore the editing
area to the current value of the character.  You can also use the "Orig"
button to set the editing area to the value of the character when
the font was originally loaded.  You can also save your current version
to the Hold buffer by clicking the "Hold" button.

To rename the character, click on the character name above the editing
area, and you'll get a window that will let you edit the name.


Hold Buffer
-----------
The line of characters (initially pink boxes) between the font and the
editing area is a hold space for temporarily storing characters you are
working on.  This area is updated automatically whenever you switch
characters without saving the character you are working on.  It also
saves the previous version every time you apply changes.

When the buffer fills up, the oldest character in the hold buffer is
overwritten.  Don't depend on this area as a place to keep a spare
character for a while; instead, rely on it as a kind of undo, and also
as spare space when you need to re-order characters.


Drag and Drop
-------------
Characters can be dragged from anywhere except the editing area.  They
can be dropped anywhere including the editing area.  Characters dropped
onto the editing area replace the current data, but do not alter the
currently selected character.  Characters dropped onto the hold space
will occupy the least recently used hold space (rather than the space
under your mouse).

If you are dragging from one spot in the font grid to another spot in
the font grid, there will be a delay before the drop is allowed.  This
is done to prevent accidentally dragging and dropping while you are
simply trying to select a new character in the font.  Wait a couple of
seconds, and a green box will appear as you move the mouse to show you
that you can now drop on this character.

Note that this does NOT do a swap operation between the two characters,
rather it does a copy.  If you need to do a swap, remember that the
copy you just did will also force the overwritten character to be saved
to the hold buffer.  You can then drag that character from the hold
buffer to the first character where you started the drag.


Deleting Characters
-------------------
If you want to make a character undefined, use Control-mouse button 3 on the
character in the font.  This same method can also be used to clean up slots
in the hold buffer.


Resizing the Font
-----------------
Select "Resize" from the "File" menu.  A new window will appear with a
grid, a green box, and a blue line.  You can grab any edge of the green
box and move it.  When you do this, you'll see that the original font
size is left underneath as black lines.  Keep in mind that the edge you
move determines where data will be added or deleted.  For instance, if
you move the left edge one pixel to the right, you will lose the left
column of data off of all of your characters after the resize.

The blue lines control the location of the font origin.  The y-axis is
normally the baseline of the font, letters sit on it and descenders
fall below it.  The x-axis is usuall the left edge, but if the font
characters should overlap, this is one way to achieve that (another
way is to set the individual character display widths, see below
in "Proportional (Variable) Width Characters").

When done, click "Resize" and wait a few seconds while your font is
resized.  Be careful, there is no undo for this.  (The hold buffer will
also be resized!)

If you can't drag the lines far enough in the resize window to make the
font as big as you want, just make it as big as you can.  If you resize
again, the resize window will be bigger.


Proportional (Variable) Width Characters
----------------------------------------
To use proportional width characters, simply use the mouse to move the green
bar in the editing area to the desired width for that character.  This bar
represents the _display_ width of the character, i.e. the next character's
origin will be drawn where the green bar is.  The character data can extend
to the right of the green bar (this would be typical for italic fonts).
For fixed width fonts, leave this bar all the way to the right.

A proportional font can be quickly converted to fixed width by using the
"Convert to Fixed" menu item in the "File" menu.  Beware:  there is no
way to undo this operation.


Font Properties and Comment
---------------------------
The Font Properties and Comment can be edited by selected these options
from the "File" menu.  The Comment is a field that contains various
comments, usually including copyright and licensing information.

The Font Properties includes the name of the font used by X11 (this is
NOT the same as the filename where you store the font), and also
some items often used to describe X11 fonts.


Customization
-------------
bdfedit will read from a configuration file in your home directory called
.bdfeditrc, if it exists.  Currently this is simply a Tcl/Tk script which
is sourced.  In theory you can do all sorts of fun things, but most
likely you'll just want to set up a default comment field that says that
you are the font author.  A sample .bdfeditrc was included with this
distribution.


BUGS
----
Selecting an undefined character causes it to be defined as a blank
character upon the next save.



Using X11 Fonts
===============

So what do you do with a BDF file?

> mkdir $HOME/fonts
> cd $HOME/fonts
> chmod 755 .
> mv somebdffont.bdf .
> mkfontdir
> chmod 644 *
> xset fp+ $HOME/fonts
> xset fp rehash

Now you can use this font.  You will be using it by the name found within
the file, NOT by the filename.  Each time you add a font to the font
directory you will need to do the mkfontdir command (in the fonts directory)
and the "xset fp rehash" command.

Make sure you don't put in two font files that have the same fontname
in them (the default font name is UNTITLED, so this can easily happen).
If you do, mkfontdir will fail.  Use the "File" menu "Properties"
dialog to change the font name.

You will probably also want to put the two xset commands into your X11
startup files (possibly .xinitrc or .xsession) so that these fonts will
be available to you every time you log in.