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[[File:CDE.png]]
{{low quality|This page contains pseudo-code which will not work out of the box.}}
{{warning|This article makes use of precarious stateful system manipulations (imperatively writing to <code>/etc</code>).}}
 
[[File:CDE.png|frameless|right]]


Aka '''cdesktopenv''' or '''Common Desktop Environment''' is a vintage desktop environment.
Aka '''cdesktopenv''' or '''Common Desktop Environment''' is a vintage desktop environment.


== Enabling ==
{{file|/etc/nixos/configuration.nix|nix|<nowiki>
  services.xserver.desktopManager.cde.enable = true;
</nowiki>}}


== Changing fonts ==
== Changing fonts ==
   sudo mkdir -p /etc/dt/config/xfonts
   sudo mkdir -p /etc/dt/config/xfonts
   sudo cp -r ${pkgs.cdesktopenv}/opt/dt/appconfig/types/C /etc/dt/config/xfonts
   sudo cp -r ${pkgs.cdesktopenv}/opt/dt/config/xfonts/$LANG /etc/dt/config/xfonts
   sudo cp -r ${pkgs.cdesktopenv}/opt/dt/appconfig/types/en_US.UTF-8 /etc/dt/config/xfonts
   sudo sed -i '/dt-interface/d' /etc/dt/config/xfonts/$LANG/fonts.alias


Now edit /etc/dt/config/xfonts/*/fonts.alias and remove all '''-dt-interface''' references. Add these instead. In this example Helvetica and Courier are used instead of fixed fonts.
Now add the following to /etc/dt/config/xfonts/$LANG/fonts.alias file. In this example Helvetica and Courier are used instead of fixed fonts.


   "-dt-interface system-medium-r-normal-xxs sans-10-100-72-72-p-61-iso8859-1"  "-adobe-helvetica-medium-r-normal--10-*-75-75-p-56-iso8859-1"
   "-dt-interface system-medium-r-normal-xxs sans-10-100-72-72-p-61-iso8859-1"  "-adobe-helvetica-medium-r-normal--10-*-75-75-p-56-iso8859-1"
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xosview2 &
xosview2 &
</nowiki>}}
</nowiki>}}
   chmod +x ~/.dt/sessions/sessionetc
   chmod +x ~/.dt/sessions/sessionetc


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== Creating an own program icon ==
== Creating an own program icon ==
Use Desktop_Apps/Create Action tool. Save actions under ~/.dt/appmanager


Icons should be in XPM or XBM format. Use the following configuration to convert from png icons
Icons should be in XPM or XBM format. Use the following configuration to convert from png icons
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   cde-icons /run/current-system/sw/share/icons/hicolor/512x512/apps/qutebrowser.png
   cde-icons /run/current-system/sw/share/icons/hicolor/512x512/apps/qutebrowser.png
Then select it in Desktop_Apps/Create Action tool. Save actions under ~/.dt/appmanager


== Setting icons on minimized programs ==
== Setting icons on minimized programs ==
 
Please note that not all programs support this
{{file|~/.Xdefaults|bash|<nowiki>
{{file|~/.Xdefaults|bash|<nowiki>
Dtwm*qutebrowser*iconImage:  qutebrowser
Dtwm*qutebrowser*iconImage:  qutebrowser
</nowiki>}}
</nowiki>}}
== Setting wallpaper ==
Put .jpg or .png under ~/.dt/backdrops then select it in Style Manager / Backdrop
== Gtk and Qt theme ==
Add to your configuration
{{file|/etc/nixos/configuration.nix|nix|<nowiki>
  services.xserver.desktopManager.cde.extraPackages = with pkgs;
    options.services.xserver.desktopManager.cde.extraPackages.default ++ [
      cde-gtk-theme
    ];
  environment.etc."xdg/gtk-2.0/gtkrc".text = ''
    gtk-theme-name="cdetheme"
  '';
  environment.etc."xdg/gtk-3.0/settings.ini".text = ''
    [Settings]
    gtk-theme-name=cdetheme
  '';
  qt5 = {
    enable = true;
    platformTheme = "gtk2";
    style = "gtk2";
  };
</nowiki>}}
Now copy the theme to home directory. Instead of Arizona.dp pick the palette you currently use in CDE for the match
  mkdir -p ~/.themes
  cp -Lr --no-preserve=mode /run/current-system/sw/share/themes/cdetheme ~/.themes/
  chmod +x ~/.themes/cdetheme/scripts/switchtheme
  cd ~/.themes/cdetheme/scripts/
  ./switchtheme ../palettes/Arizona.dp 8 3 22 false true false
== Changing volume and brightness with media keys ==
Add the following to ~/.dt/dtwmrc
  Keys DtKeyBindings
  {
    <Key>XF86AudioLowerVolume  root|icon|window|ifkey  f.exec "amixer set Master -q 5%-"
    <Key>XF86AudioRaiseVolume  root|icon|window|ifkey  f.exec "amixer set Master -q 5%+"
    <Key>XF86AudioMute          root|icon|window|ifkey  f.exec "amixer set Master -q toggle"
    <Key>XF86MonBrightnessUp    root|icon|window|ifkey  f.exec "xbacklight -inc 1"
    <Key>XF86MonBrightnessDown  root|icon|window|ifkey  f.exec "xbacklight -dec 1"
  }
== Battery widget ==
{{file|/etc/nixos/configuration.nix|nix|<nowiki>
let
  cde-battery = pkgs.writeScriptBin "cde-battery" ''
    #!${pkgs.cdesktopenv}/opt/dt/bin/dtksh
    ${pkgs.lib.readFile (pkgs.fetchurl {
      url = "https://raw.githubusercontent.com/edorig/dtksh/5f49e402b391c81ebea9609bdec9c7716e70a8c0/battery";
      sha256 = "0zjn9zl1as9xbk2845bbdy2xfj29b4hvvalcz8kf2llkndbfswvl";
    })}
  '';
in {
  services.xserver.desktopManager.cde.extraPackages = with pkgs;
    options.services.xserver.desktopManager.cde.extraPackages.default ++ [
      cde-battery
    ];
}
</nowiki>}}
Please read [[#Adding programs to autolaunch|Adding programs to autolaunch section]]
{{file|~/.dt/sessions/sessionetc|bash|<nowiki>
#!/bin/sh
cde-battery &
</nowiki>}}
Please read [[#Editing panel|Editing panel section]]
{{file|~/.dt/types/dtwm.fp||<nowiki>
CONTROL Battery
{
POSITION_HINTS  14
TYPE client
CONTAINER_NAME Top
CONTAINER_TYPE BOX
CLIENT_NAME cde-battery
CLIENT_GEOMETRY 97x58 
HELP_STRING "Battery indicator"
}
</nowiki>}}
== Example configuration ==


== Own wallpapers ==
{{file|/etc/nixos/configuration.nix|nix|<nowiki>
{ pkgs, options, ... }


Put .jpg or .png under ~/.dt/backdrops then select it in Style Manager / Backdrop
let
  cde-icons = pkgs.writeShellScriptBin "cde-icons" ''
    file=`basename ''${1%.*}`


== Useful sources ==
    ${pkgs.imagemagick}/bin/convert $1 -resize 48x48 ~/.dt/icons/$file.l.pm
    ${pkgs.imagemagick}/bin/convert $1 -resize 32x32 ~/.dt/icons/$file.m.pm
    ${pkgs.imagemagick}/bin/convert $1 -resize 24x24 ~/.dt/icons/$file.s.pm
    ${pkgs.imagemagick}/bin/convert $1 -resize 16x16 ~/.dt/icons/$file.t.pm
  '';
  cde-battery = pkgs.writeScriptBin "cde-battery" ''
    #!${pkgs.cdesktopenv}/opt/dt/bin/dtksh
    ${pkgs.lib.readFile (pkgs.fetchurl {
      url = "https://raw.githubusercontent.com/edorig/dtksh/5f49e402b391c81ebea9609bdec9c7716e70a8c0/battery";
      sha256 = "0zjn9zl1as9xbk2845bbdy2xfj29b4hvvalcz8kf2llkndbfswvl";
    })}
  '';
in {
  # CDE has a limited number of locales
  i18n.defaultLocale = "en_US.UTF-8";
  # CDE has no keyboard layout configuration
  services.xserver.layout = "us,ru";
  services.xserver.xkbOptions = "grp:alt_shift_toggle,grp_led:caps";
  services.xserver.desktopManager.cde.enable = true;
  services.xserver.desktopManager.cde.extraPackages = with pkgs;
    options.services.xserver.desktopManager.cde.extraPackages.default ++ [
      fsv cde-icons cde-gtk-theme cde-battery
    ];
  environment.etc."xdg/gtk-2.0/gtkrc".text = ''
    gtk-theme-name="cdetheme"
  '';
  environment.etc."xdg/gtk-3.0/settings.ini".text = ''
    [Settings]
    gtk-theme-name=cdetheme
  '';
  qt5 = {
    enable = true;
    platformTheme = "gtk2";
    style = "gtk2";
  };
}


</nowiki>}}
== Useful links ==
* https://sourceforge.net/p/cdesktopenv/wiki/CustomisingCDE/
* https://sourceforge.net/p/cdesktopenv/wiki/CustomisingCDE/


[[Category:Configuration]]
[[Category:Cookbook]]
[[Category:Guide]]
[[Category:Desktop environment]]
[[Category:Tutorial]]
[[Category:Desktop]]
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