diff --git a/screen.lua b/screen.lua new file mode 100644 index 000000000..db5ccf4fe --- /dev/null +++ b/screen.lua @@ -0,0 +1,74 @@ +--[[ + Copyright (C) 2011 Hans-Werner Hilse + + 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 . +]]-- + +--[[ +Codes for rotation modes: + +1 for no rotation, +2 for landscape with bottom on the right side of screen, etc. + + 3 + +--------------+ + | +----------+ | + | | | | + | | Freedom! | | + | | | | + | | | | + 4 | | | | 2 + | | | | + | | | | + | +----------+ | + | | + | | + +--------------+ + 1 +--]] + + +Screen = { + rotation_modes = {"Up","Right","Down","Left"}, + cur_rotation_mode = 1, +} + +-- @ orien: 1 for clockwise rotate, -1 for anti-clockwise +function Screen:screenRotate(orien) + if orien == "clockwise" then + orien = 1 + elseif orien == "anticlockwise" then + orien = -1 + else + return + end + + fb:close() + self.cur_rotation_mode = (self.cur_rotation_mode-1 + 1*orien)%4 + 1 + local mode = self.rotation_modes[self.cur_rotation_mode] + os.execute("lipc-send-event -r 3 com.lab126.hal orientation"..mode) + fb = einkfb.open("/dev/fb0") +end + +function Screen:updateRotationMode() + if KEY_FW_DOWN == 116 then -- in EMU mode always set to 1 + self.cur_rotation_mode = 1 + else + orie_fd = assert(io.open("/sys/module/eink_fb_hal_broads/parameters/bs_orientation", "r")) + updown_fd = assert(io.open("/sys/module/eink_fb_hal_broads/parameters/bs_upside_down", "r")) + self.cur_rotation_mode = orie_fd:read() + (updown_fd:read() * 2) + 1 + end +end + +