added multiple zoom variants

also, added key codes from launchpad sources.
thus, a few constants change their names.
These are the current keys:
PGFWD = next page
PGBCK = previous page

SHIFT+PGFWD = zoom in
SHIFT+PGBCK = zoom out

A = fit to page
S = fit to page width
D = fit to page height

SHIFT+A = fit to page content
SHIFT+S = fit to page content width
SHIFT+D = fit to page content height

SHIFT+FW_UP = Gamma + 0.2
SHIFT+FW_DOWN = Gamma - 0.2

keys.lua

@@ -1,18 +1,86 @@
 --[[
-This file contains settings related to key codes
+    This file contains settings related to key codes
+
+    Copyright (C) 2011 Hans-Werner Hilse <hilse@web.de>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+
+    This file is based on include/keydefs.h from "launchpad"
+    application, which is
+    Copyright (C) 2010 Andy M. aka h1uke	h1ukeguy @ gmail.com
+    and was licensed under the GPLv2
 ]]--
 
-KEY_PAGEUP = 109 -- nonstandard
-KEY_PAGEDOWN = 124 -- nonstandard
-KEY_BACK = 91 -- nonstandard
+KEY_1 = 2
+KEY_2 = 3
+KEY_3 = 4
+KEY_4 = 5
+KEY_5 = 6
+KEY_6 = 7
+KEY_7 = 8
+KEY_8 = 9
+KEY_9 = 10
+KEY_0 = 11
+KEY_Q = 16
+KEY_W = 17
+KEY_E = 18
+KEY_R = 19
+KEY_T = 20
+KEY_Y = 21
+KEY_U = 22
+KEY_I = 23
+KEY_O = 24
+KEY_P = 25
+KEY_A = 30
+KEY_S = 31
+KEY_D = 32
+KEY_F = 33
+KEY_G = 34
+KEY_H = 35
+KEY_J = 36
+KEY_K = 37
+KEY_L = 38
+KEY_DEL = 14
+KEY_Z = 44
+KEY_X = 45
+KEY_C = 46
+KEY_V = 47
+KEY_B = 48
+KEY_N = 49
+KEY_M = 50
+KEY_DOT = 52
+KEY_SLASH = 53
+KEY_ENTER = 28
+KEY_SHIFT = 42
+KEY_ALT = 56
+KEY_SPACE = 57
+KEY_AA = 90
+KEY_SYM = 94
+KEY_VPLUS = 115
+KEY_VMINUS = 114
+KEY_HOME = 98
+KEY_PGBCK = 109
+KEY_PGFWD = 124
 KEY_MENU = 139
-
--- DPad:
-KEY_UP = 122 -- nonstandard
-KEY_DOWN = 123 -- nonstandard
-KEY_LEFT = 105
-KEY_RIGHT = 106
-KEY_BTN = 92 -- nonstandard
+KEY_BACK = 91
+KEY_FW_LEFT = 105
+KEY_FW_RIGHT = 106
+KEY_FW_UP = 122
+KEY_FW_DOWN = 123
+KEY_FW_PRESS = 92
 
 -- constants from <linux/input.h>
 EV_KEY = 1
@@ -21,16 +89,34 @@ EV_KEY = 1
 EVENT_VALUE_KEY_PRESS = 1
 EVENT_VALUE_KEY_REPEAT = 2
 EVENT_VALUE_KEY_RELEASE = 0
-
+ 
+function set_k3_keycodes()
+	KEY_AA = 190
+	KEY_SYM = 126
+	KEY_HOME = 102
+	KEY_BACK = 158
+	KEY_PGFWD = 191
+	KEY_LPGBCK = 193
+	KEY_LPGFWD = 104
+	KEY_VPLUS = 115
+	KEY_VMINUS = 114
+	KEY_FW_UP = 103
+	KEY_FW_DOWN = 108
+	KEY_FW_PRESS = 194
+end
 
 function set_emu_keycodes()
-	KEY_PAGEDOWN = 112
-	KEY_PAGEUP = 117
+	KEY_PGFWD = 117
+	KEY_PGBCK = 112
 	KEY_BACK = 22 -- backspace
 	KEY_MENU = 67 -- F1
-	KEY_UP = 111
-	KEY_DOWN = 116
-	KEY_LEFT = 113
-	KEY_RIGHT = 114
-	KEY_BTN = 36 -- enter for now
+	KEY_FW_UP = 111
+	KEY_FW_DOWN = 116
+	KEY_FW_LEFT = 113
+	KEY_FW_RIGHT = 114
+	KEY_FW_PRESS = 36 -- enter for now
+	KEY_A = 38
+	KEY_S = 39
+	KEY_D = 40
+	KEY_SHIFT = 50
 end