Custom keyboard layout variant

Since I normally use a swedish keyboard layout, writing braces, parenthesis and brackets kind of sucks. I decided to remap them to

leftbrace to AltGr+q
rightbrace to AltGr+r
leftbracket to AltGr+w
rightbracket to AltGr+e
leftparen to AltGr+a
rightparent to AltGr+s


The first method I tried was to run a script in .kde4/Autostart that runs "xmodmap" on a custom ".Xmodmap" where I captured the keypress event with "xev". This was quite easy and worked as expected in just a few minutes. However, once I logged out and the logged in again I noticed a severe delay before I could use the keyboard. After some thinking and googling I came to understand that the remapping of the keys was sort of tinkering with the keymap behing the X servers back which created a great deal of sync operations and used a lot of resources.
The next strategy was to create the layout to be available before the X server starts. Here is how:

edit /usr/share/X11/xkb/symbols/se

add the following:


partial alphanumeric_keys
xkb_symbols "se_aron" {
name[Group1]="Swedish (aron)";
include "se(basic)"
key <AE07> { [ 7, slash ] };
key <AE08> { [ 8 ] };
key <AE09> { [ 9 ] };
key <AE10> { [ 0, equal ] };
key <AD01> { [ q, Q, braceleft ] };
key <AD02> { [ w, W, bracketleft ] };
key <AD03> { [ e, E, bracketright ] };
key <AD04> { [ r, R, braceright ] };
key <AC01> { [ a, A, parenleft ] };
key <AC02> { [ s, S, parenright ] };
include "kpdl(comma)"
include "level3(ralt_switch)"
};


Found the codes here
Now the definition exists, but it also needs to be added to a list that the systemsettings in kde can select from:

/usr/share/X11/xkb/rules/base.lst

or with evdev

/usr/share/X11/xkb/rules/evdev.lst

Add the entry

se_aron se: Swedish (aron)

And also, not quite sure this is needed but for good measure if nothing else:
Open

/usr/share/X11/xkb/rules/base.xml

or with evdev

/usr/share/X11/xkb/rules/evdev.xml

And, under the configitem with name 'se', add a variant like so:



se_aron
Swedish (aron)



Now, the next time you log on to a kde session (the X server needs to be restarted first) you will be able to select the custom variant.
Update: when using fluxbox the xmodmap works just fine. .Xmodmap follows below. I also moved slash to AltGr+d:

keycode 8 =
keycode 9 = Escape NoSymbol Escape
keycode 10 = 1 exclam exclamdown onesuperior
keycode 11 = 2 quotedbl 7 ampersand at twosuperior
keycode 12 = 3 numbersign 5 percent sterling threesuperior
keycode 13 = 4 currency 3 numbersign dollar onequarter
keycode 14 = 5 percent 1 exclam EuroSign cent
keycode 15 = 6 ampersand 9 parenleft yen fiveeighths dead_grave
keycode 16 = 7
keycode 17 = 8
keycode 18 = 9
keycode 19 = 0 equal
keycode 20 = plus question 8 asterisk backslash questiondown
keycode 21 = dead_acute dead_grave bracketright braceright plusminus notsign dead_tilde
keycode 22 = BackSpace BackSpace BackSpace BackSpace
keycode 23 = Tab ISO_Left_Tab Tab ISO_Left_Tab
keycode 24 = q Q slash question braceleft Greek_OMEGA
keycode 25 = w W comma less bracketleft Lstroke
keycode 26 = e E period greater bracketright cent dead_abovedot periodcentered
keycode 27 = r R p P braceright registered
keycode 28 = t T y Y thorn THORN
keycode 29 = y Y f F leftarrow yen
keycode 30 = u U g G downarrow uparrow
keycode 31 = i I c C rightarrow idotless
keycode 32 = o O r R oe OE
keycode 33 = p P l L thorn THORN
keycode 34 = aring Aring apostrophe quotedbl dead_diaeresis dead_abovering dead_acute dead_diaeresis
keycode 35 = asciitilde asciicircum dead_circumflex dead_circumflex
keycode 36 = Return NoSymbol Return
keycode 37 = Control_L NoSymbol Control_L
keycode 38 = a A a A parenleft
keycode 39 = s S s S parenright
keycode 40 = d D d D slash
keycode 41 = f F u U dstroke ordfeminine
keycode 42 = g G i I eng ENG
keycode 43 = h H d D hstroke Hstroke
keycode 44 = j J h H dead_hook dead_horn
keycode 45 = k K t T kra ampersand
keycode 46 = l L n N lstroke Lstroke
keycode 47 = odiaeresis Odiaeresis s S oslash Oslash
keycode 48 = adiaeresis Adiaeresis minus underscore ae AE
keycode 49 = section onehalf grave
keycode 50 = Shift_L NoSymbol Shift_L
keycode 51 = apostrophe asterisk backslash bar acute multiply
keycode 52 = z Z semicolon colon guillemotleft less dead_ogonek dead_doubleacute
keycode 53 = x X q Q guillemotright greater
keycode 54 = c C j J copyright copyright
keycode 55 = v V k K leftdoublequotemark leftsinglequotemark
keycode 56 = b B x X rightdoublequotemark rightsinglequotemark
keycode 57 = n N b B n N
keycode 58 = m M m M mu masculine
keycode 59 = comma semicolon w W dead_cedilla dead_ogonek
keycode 60 = period colon v V periodcentered dead_abovedot
keycode 61 = minus underscore z Z dead_belowdot dead_abovedot
keycode 62 = Shift_R NoSymbol Shift_R
keycode 63 = KP_Multiply KP_Multiply KP_Multiply KP_Multiply KP_Multiply KP_Multiply XF86ClearGrab KP_Multiply KP_Multiply XF86ClearGrab
keycode 64 = Alt_L Meta_L Alt_L Meta_L
keycode 65 = space space space space space nobreakspace space nobreakspace
keycode 66 = Caps_Lock NoSymbol Caps_Lock
keycode 67 = F1 F1 F1 F1 F1 F1 XF86Switch_VT_1 F1 F1 XF86Switch_VT_1
keycode 68 = F2 F2 F2 F2 F2 F2 XF86Switch_VT_2 F2 F2 XF86Switch_VT_2
keycode 69 = F3 F3 F3 F3 F3 F3 XF86Switch_VT_3 F3 F3 XF86Switch_VT_3
keycode 70 = F4 F4 F4 F4 F4 F4 XF86Switch_VT_4 F4 F4 XF86Switch_VT_4
keycode 71 = F5 F5 F5 F5 F5 F5 XF86Switch_VT_5 F5 F5 XF86Switch_VT_5
keycode 72 = F6 F6 F6 F6 F6 F6 XF86Switch_VT_6 F6 F6 XF86Switch_VT_6
keycode 73 = F7 F7 F7 F7 F7 F7 XF86Switch_VT_7 F7 F7 XF86Switch_VT_7
keycode 74 = F8 F8 F8 F8 F8 F8 XF86Switch_VT_8 F8 F8 XF86Switch_VT_8
keycode 75 = F9 F9 F9 F9 F9 F9 XF86Switch_VT_9 F9 F9 XF86Switch_VT_9
keycode 76 = F10 F10 F10 F10 F10 F10 XF86Switch_VT_10 F10 F10 XF86Switch_VT_10
keycode 77 = Num_Lock NoSymbol Num_Lock
keycode 78 = Scroll_Lock NoSymbol Scroll_Lock
keycode 79 = KP_Home KP_7 KP_Home KP_7
keycode 80 = KP_Up KP_8 KP_Up KP_8
keycode 81 = KP_Prior KP_9 KP_Prior KP_9
keycode 82 = KP_Subtract KP_Subtract KP_Subtract KP_Subtract KP_Subtract KP_Subtract XF86Prev_VMode KP_Subtract KP_Subtract XF86Prev_VMode
keycode 83 = KP_Left KP_4 KP_Left KP_4
keycode 84 = KP_Begin KP_5 KP_Begin KP_5
keycode 85 = KP_Right KP_6 KP_Right KP_6
keycode 86 = KP_Add KP_Add KP_Add KP_Add KP_Add KP_Add XF86Next_VMode KP_Add KP_Add XF86Next_VMode
keycode 87 = KP_End KP_1 KP_End KP_1
keycode 88 = KP_Down KP_2 KP_Down KP_2
keycode 89 = KP_Next KP_3 KP_Next KP_3
keycode 90 = KP_Insert KP_0 KP_Insert KP_0
keycode 91 = KP_Delete KP_Separator KP_Delete KP_Separator
keycode 92 = ISO_Level3_Shift NoSymbol ISO_Level3_Shift

The rest is default.