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Describe the Color database files
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Barry Warsaw
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@ -2,7 +2,7 @@ Pynche - The PYthonically Natural Color and Hue Editor
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Contact: Barry A. Warsaw
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Email: bwarsaw@python.org
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Version: 0.1
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Version: 1.0
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Introduction
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@ -16,19 +16,21 @@ Introduction
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changed the name because these days, too many other systems have
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the acronym `ICE'.
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Pynche has been tested with Python 1.5.1 using Tk 8.0. It
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Pynche has been tested with Python 1.5.x using Tk 8.0.x. It
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probably works with Python 1.5. I've tested it on both Solaris
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2.6 and Windows NT. There are some funky things that happen on
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Windows but I think they are primarily Tk problems. You'll want
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to be sure to have Tk 8.0.3 for Windows. Also, Pynche is very
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colormap intensive, so it doesn't work very well on 8-bit graphics
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cards. I'll probably fix that in the future.
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to be sure to have at least Tk 8.0.3 for Windows. Also, Pynche is
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very colormap intensive, so it doesn't work very well on 8-bit
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graphics cards. I'll probably fix that in the future.
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Pynche must find a text database of colors, in the X11 format.
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Pynche is distributed with an rgb.txt file from the X11R6.4
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distribution for this reason, but you can use a different file
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with the -d option. The file xlicense.txt contains the license
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only for rgb.txt and both files are in the X/ subdirectory.
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Pynche must find a text database of colors names in order to
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provide `nearest' color matching. Pynche is distributed with an
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rgb.txt file from the X11R6.4 distribution for this reason, along
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with other "Web related" database (see below). You can use a
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different file with the -d option. The file xlicense.txt contains
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the license only for rgb.txt and both files are in the X/
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subdirectory.
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Pynche is pronounced `Pinch-ee'.
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@ -41,8 +43,7 @@ Running Standalone
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--database file
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-d file
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Alternate location of the color database file. Without this
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option, the first of /usr/openwin/lib/rgb.txt or X/rgb.txt
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will be used.
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option, the first valid file found will be used (see below).
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--initfile file
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-i file
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@ -68,10 +69,12 @@ Running Standalone
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Running as a Modal Dialog
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Pynche can be run as a modal dialog, inside another application.
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It supports the API implemented by the Tkinter standard
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tkColorChooser module, with a few changes. By importing
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pyColorChooser from the Pynche package, you can run
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Pynche can be run as a modal dialog, inside another application,
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say as a general color chooser. In fact, Grail 0.6 already uses
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Pynche and a future version of IDLE may as well. Pynche supports
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the API implemented by the Tkinter standard tkColorChooser module,
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with a few changes as described below. By importing pyColorChooser
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from the Pynche package, you can run
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pyColorChooser.askcolor()
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@ -79,8 +82,9 @@ Running as a Modal Dialog
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color.
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There are some UI differences when running as a modal
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vs. standalone. When running as a modal, there is no "File" menu,
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but instead there are "Okay" and "Cancel" buttons.
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vs. standalone. When running as a modal, there is no "Quit" menu
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item under the "File" menu. Instead there are "Okay" and "Cancel"
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buttons.
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When "Okay" is hit, askcolor() returns the tuple
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@ -148,6 +152,9 @@ The Colorstrip Window
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be slower). Click on "Hexadecimal" to display the arrow numbers
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in hex.
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There are also two shortcut buttons in this window, which
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auto-select Black (0/0/0) and White (255/255/255).
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The Proof Window
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In the lower left corner of the main window you see two larger
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@ -164,7 +171,7 @@ The Proof Window
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RGB value. In that case, the first one found in the text database
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is designated the "primary" name, and this is shown under the
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Nearest chip. The other names are "aliases" and they are visible
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in other Pynche windows.
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in the Color List Window (see below).
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The Type-in Window
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@ -210,15 +217,15 @@ The Text Window
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The Color List Window
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The "Color List" window shows every color in the text database
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(this window may take a while to come up). In the upper part of
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the window you see a scrolling list of all the color names in the
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database, in alphabetical order. Click on any color to select it.
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In the bottom part of the window is displayed any aliases for the
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selected color (those color names that have the same RGB value,
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but were found later in the text database). For example, find the
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color "Black" and you'll see that its aliases are "gray0" and
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"grey0".
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The "Color List" window shows every named color in the color name
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database (this window may take a while to come up). In the upper
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part of the window you see a scrolling list of all the color names
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in the database, in alphabetical order. Click on any color to
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select it. In the bottom part of the window is displayed any
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aliases for the selected color (those color names that have the
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same RGB value, but were found later in the text database). For
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example, find the color "Black" and you'll see that its aliases
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are "gray0" and "grey0".
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If the color has no aliases you'll see "<no aliases>" here. If you
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just want to see if a color has an alias, and do not want to select a
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@ -258,7 +265,7 @@ The Details Window
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around to the other side. Thus if red were at 238 and +25
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were clicked, red would have the value 7.
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Preseve Distance
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Preserve Distance
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When the increment or decrement would send any of the tied
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variations out of bounds, all tied variations are wrapped as
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one, so as to preserve the distance between them. Thus if
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@ -299,7 +306,7 @@ Persistency
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When Pynche exits, it saves these values in the init file, and
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re-reads them when it starts up. There is no locking on this
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file, so if you run multiple instances of Pynche at a time, you
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will override the init file.
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may clobber the init file.
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The actual options stored include
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@ -311,12 +318,32 @@ Persistency
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insertion point, and all current text widget element color
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settings.
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- the name of the color database file (but not its contents)
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You can inhibit Pynche from reading the init file by supplying the
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--ignore option on the command line. However, you cannot suppress
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the storing of the settings in the init file on Pynche exit. If
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you really want to do this, use /dev/null as the init file, using
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--initfile.
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Color Name Database Files
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Pynche uses a color name database file to calculate the nearest
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color to the selected color, and to display in the Color List
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view. Several files are distributed with Pynche, described
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below. By default, the X11 color name database file is selected.
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Other files:
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html40colors.txt -- the HTML 4.0 guaranteed color names
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websafe.txt -- the 216 "Web-safe" colors that Netscape and MSIE
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guarantee will not be dithered. These are specified in #rrggbb
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format for both values and names
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webcolors.txt -- The 140 color names that Tim Peters and his
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sister say NS and MSIE both understand (with some controversy over
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AliceBlue).
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To Do
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Here's a brief list of things I want to do:
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