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258 lines
6.7 KiB
Lua
258 lines
6.7 KiB
Lua
require "rendertext"
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require "keys"
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require "graphics"
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InputBox = {
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-- Class vars:
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h = 100,
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input_slot_w = nil,
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input_start_x = 145,
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input_start_y = nil,
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input_cur_x = nil, -- points to the start of next input pos
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input_bg = 0,
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input_string = "",
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shiftmode = false,
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altmode = false,
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cursor = nil,
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-- font for displaying input content
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-- we have to use mono here for better distance controlling
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face = freetype.newBuiltinFace("mono", 25),
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fhash = "m25",
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fheight = 25,
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fwidth = 15,
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}
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function InputBox:refreshText()
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-- clear previous painted text
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fb.bb:paintRect(140, self.input_start_y-19,
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self.input_slot_w, self.fheight, self.input_bg)
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-- paint new text
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renderUtf8Text(fb.bb, self.input_start_x, self.input_start_y,
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self.face, self.fhash,
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self.input_string, 0)
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end
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function InputBox:addChar(char)
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self.cursor:clear()
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-- draw new text
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local cur_index = (self.cursor.x_pos + 3 - self.input_start_x)
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/ self.fwidth
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self.input_string = self.input_string:sub(1,cur_index)..char..
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self.input_string:sub(cur_index+1)
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self:refreshText()
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self.input_cur_x = self.input_cur_x + self.fwidth
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-- draw new cursor
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self.cursor:moveHorizontal(self.fwidth)
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self.cursor:draw()
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fb:refresh(1, self.input_start_x-5, self.input_start_y-25,
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self.input_slot_w, self.h-25)
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end
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function InputBox:delChar()
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if self.input_start_x == self.input_cur_x then
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return
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end
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local cur_index = (self.cursor.x_pos + 3 - self.input_start_x)
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/ self.fwidth
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if cur_index == 0 then return end
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self.cursor:clear()
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-- draw new text
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self.input_string = self.input_string:sub(0,cur_index-1)..
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self.input_string:sub(cur_index+1, -1)
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self:refreshText()
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self.input_cur_x = self.input_cur_x - self.fwidth
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-- draw new cursor
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self.cursor:moveHorizontal(-self.fwidth)
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self.cursor:draw()
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fb:refresh(1, self.input_start_x-5, self.input_start_y-25,
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self.input_slot_w, self.h-25)
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end
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function InputBox:clearText()
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self.cursor:clear()
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self.input_string = ""
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self:refreshText()
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self.cursor.x_pos = self.input_start_x - 3
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self.cursor:draw()
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fb:refresh(1, self.input_start_x-5, self.input_start_y-25,
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self.input_slot_w, self.h-25)
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end
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function InputBox:drawBox(ypos, w, h, title)
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-- draw input border
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fb.bb:paintRect(20, ypos, w, h, 5)
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-- draw input slot
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fb.bb:paintRect(140, ypos + 10, w - 130, h - 20, self.input_bg)
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-- draw input title
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renderUtf8Text(fb.bb, 35, self.input_start_y, self.face, self.fhash,
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title, true)
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end
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----------------------------------------------------------------------
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-- InputBox:input()
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--
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-- @title: input prompt for the box
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-- @d_text: default to nil (used to set default text in input slot)
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----------------------------------------------------------------------
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function InputBox:input(ypos, height, title, d_text)
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-- do some initilization
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self.h = height
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self.input_start_y = ypos + 35
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self.input_cur_x = self.input_start_x
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self.input_slot_w = fb.bb:getWidth() - 170
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self.cursor = Cursor:new {
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x_pos = self.input_start_x - 3,
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y_pos = ypos + 13,
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h = 30,
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}
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-- draw box and content
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w = fb.bb:getWidth() - 40
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h = height - 45
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self:drawBox(ypos, w, h, title)
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if d_text then
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self.input_string = d_text
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self.input_cur_x = self.input_cur_x + (self.fwidth * d_text:len())
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self.cursor.x_pos = self.cursor.x_pos + (self.fwidth * d_text:len())
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self:refreshText()
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end
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self.cursor:draw()
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fb:refresh(1, 20, ypos, w, h)
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while true do
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local ev = input.waitForEvent()
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ev.code = adjustKeyEvents(ev)
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if ev.type == EV_KEY and ev.value == EVENT_VALUE_KEY_PRESS then
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--local secs, usecs = util.gettime()
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if ev.code == KEY_FW_UP then
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elseif ev.code == KEY_FW_DOWN then
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elseif ev.code == KEY_A then
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self:addChar("a")
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elseif ev.code == KEY_B then
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self:addChar("b")
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elseif ev.code == KEY_C then
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self:addChar("c")
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elseif ev.code == KEY_D then
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self:addChar("d")
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elseif ev.code == KEY_E then
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self:addChar("e")
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elseif ev.code == KEY_F then
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self:addChar("f")
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elseif ev.code == KEY_G then
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self:addChar("g")
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elseif ev.code == KEY_H then
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self:addChar("h")
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elseif ev.code == KEY_I then
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self:addChar("i")
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elseif ev.code == KEY_J then
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self:addChar("j")
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elseif ev.code == KEY_K then
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self:addChar("k")
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elseif ev.code == KEY_L then
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self:addChar("l")
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elseif ev.code == KEY_M then
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self:addChar("m")
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elseif ev.code == KEY_N then
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self:addChar("n")
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elseif ev.code == KEY_O then
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self:addChar("o")
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elseif ev.code == KEY_P then
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self:addChar("p")
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elseif ev.code == KEY_Q then
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self:addChar("q")
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elseif ev.code == KEY_R then
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self:addChar("r")
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elseif ev.code == KEY_S then
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self:addChar("s")
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elseif ev.code == KEY_T then
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self:addChar("t")
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elseif ev.code == KEY_U then
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self:addChar("u")
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elseif ev.code == KEY_V then
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self:addChar("v")
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elseif ev.code == KEY_W then
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self:addChar("w")
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elseif ev.code == KEY_X then
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self:addChar("x")
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elseif ev.code == KEY_Y then
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self:addChar("y")
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elseif ev.code == KEY_Z then
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self:addChar("z")
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elseif ev.code == KEY_1 then
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self:addChar("1")
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elseif ev.code == KEY_2 then
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self:addChar("2")
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elseif ev.code == KEY_3 then
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self:addChar("3")
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elseif ev.code == KEY_4 then
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self:addChar("4")
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elseif ev.code == KEY_5 then
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self:addChar("5")
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elseif ev.code == KEY_6 then
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self:addChar("6")
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elseif ev.code == KEY_7 then
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self:addChar("7")
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elseif ev.code == KEY_8 then
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self:addChar("8")
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elseif ev.code == KEY_9 then
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self:addChar("9")
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elseif ev.code == KEY_0 then
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self:addChar("0")
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elseif ev.code == KEY_SPACE then
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self:addChar(" ")
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elseif ev.code == KEY_PGFWD then
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elseif ev.code == KEY_PGBCK then
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elseif ev.code == KEY_FW_LEFT then
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if (self.cursor.x_pos + 3) > self.input_start_x then
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self.cursor:moveHorizontalAndDraw(-self.fwidth)
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fb:refresh(1, self.input_start_x-5, ypos,
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self.input_slot_w, h)
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end
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elseif ev.code == KEY_FW_RIGHT then
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if (self.cursor.x_pos + 3) < self.input_cur_x then
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self.cursor:moveHorizontalAndDraw(self.fwidth)
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fb:refresh(1,self.input_start_x-5, ypos,
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self.input_slot_w, h)
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end
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elseif ev.code == KEY_ENTER or ev.code == KEY_FW_PRESS then
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if self.input_string == "" then
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self.input_string = nil
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end
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break
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elseif ev.code == KEY_DEL then
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if Keys.shiftmode then
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self:clearText()
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else
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self:delChar()
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end
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elseif ev.code == KEY_BACK or ev.code == KEY_HOME then
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self.input_string = nil
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break
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end
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--local nsecs, nusecs = util.gettime()
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--local dur = (nsecs - secs) * 1000000 + nusecs - usecs
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--print("E: T="..ev.type.." V="..ev.value.." C="..ev.code.." DUR="..dur)
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end -- if
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end -- while
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local return_str = self.input_string
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self.input_string = ""
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return return_str
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end
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