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mirror of https://github.com/koreader/koreader synced 2024-10-31 21:20:20 +00:00
koreader/inputbox.lua
traycold 02dd9b023f Merge remote branch 'hwhw/master'
* hwhw/master: (183 commits)
  show infomessage on document open
  use InfoMessage for empty TOC, jump history and highlights
  copy resources dir on customupdate
  add resource: info icon
  display document open error message
  added infomessage dialog implementation
  bugfix, removed old test constant
  Added widget abstraction framework
  added interface to get blitbuffers from JPEG/PNG files
  fix typo
  added reading of pan_margin settings
  fix full screen refresh command, close #99
  add: sleep and usleep in util module
  fix: add back KEY_FW{LEFT,RIGHT} commands to NumInputBox
  reverted removal of last-doc shortcut, introduced framework restart
  kill our own child process. not quite finished.
  added line spacing setting for crereader
  remove page:getPageText debug dump to improve performance on device
  remove page:getPageText debug dump to improve performance on device
  display crash.log on error
  ...

Conflicts:
	ft.c
	helppage.lua
	inputbox.lua
	rendertext.lua
	rendertext_example.lua
	unireader.lua
2012-04-16 00:08:19 +02:00

390 lines
9.3 KiB
Lua

require "font"
require "rendertext"
require "keys"
require "graphics"
----------------------------------------------------
-- General inputbox
----------------------------------------------------
InputBox = {
-- Class vars:
h = 100,
input_slot_w = nil,
input_start_x = 145,
input_start_y = nil,
input_cur_x = nil, -- points to the start of next input pos
input_bg = 0,
input_string = "",
shiftmode = false,
altmode = false,
cursor = nil,
-- font for displaying input content
-- we have to use mono here for better distance controlling
face = Font:getFace("infont", 25),
fheight = 25,
fwidth = 15,
commands = nil,
initialized = false,
}
function InputBox:new(o)
o = o or {}
setmetatable(o, self)
self.__index = self
return o
end
function InputBox:init()
if not self.initialized then
self:addAllCommands()
self.initialized = true
end
end
function InputBox:refreshText()
-- clear previous painted text
fb.bb:paintRect(140, self.input_start_y-19,
self.input_slot_w, self.fheight, self.input_bg)
-- paint new text
renderUtf8Text(fb.bb, self.input_start_x, self.input_start_y,
self.face,
self.input_string, 0)
end
function InputBox:addChar(char)
self.cursor:clear()
-- draw new text
local cur_index = (self.cursor.x_pos + 3 - self.input_start_x)
/ self.fwidth
self.input_string = self.input_string:sub(1, cur_index)..char..
self.input_string:sub(cur_index+1)
self:refreshText()
self.input_cur_x = self.input_cur_x + self.fwidth
-- draw new cursor
self.cursor:moveHorizontal(self.fwidth)
self.cursor:draw()
fb:refresh(1, self.input_start_x-5, self.input_start_y-25,
self.input_slot_w, self.h-25)
end
function InputBox:delChar()
if self.input_start_x == self.input_cur_x then
return
end
local cur_index = (self.cursor.x_pos + 3 - self.input_start_x)
/ self.fwidth
if cur_index == 0 then return end
self.cursor:clear()
-- draw new text
self.input_string = self.input_string:sub(1, cur_index-1)..
self.input_string:sub(cur_index+1, -1)
self:refreshText()
self.input_cur_x = self.input_cur_x - self.fwidth
--fill last character with blank rectangle
fb.bb:paintRect(self.input_cur_x, self.input_start_y-19,
self.fwidth, self.fheight, self.input_bg)
fb:refresh(1, self.input_cur_x, self.input_start_y-19, self.fwidth, self.fheight)
self.input_string = self.input_string:sub(0,-2)
-- draw new cursor
self.cursor:moveHorizontal(-self.fwidth)
self.cursor:draw()
fb:refresh(1, self.input_start_x-5, self.input_start_y-25,
self.input_slot_w, self.h-25)
end
function InputBox:clearText()
self.cursor:clear()
self.input_string = ""
self:refreshText()
self.cursor.x_pos = self.input_start_x - 3
self.cursor:draw()
fb:refresh(1, self.input_start_x-5, self.input_start_y-25,
self.input_slot_w, self.h-25)
end
function InputBox:drawHelpMsg(ypos, w, h)
return
end
function InputBox:drawBox(ypos, w, h, title)
-- draw input border
fb.bb:paintRect(20, ypos, w, h, 5)
-- draw input slot
fb.bb:paintRect(140, ypos + 10, w - 130, h - 20, self.input_bg)
-- draw input title
renderUtf8Text(fb.bb, 35, self.input_start_y, self.face,
title, true)
end
----------------------------------------------------------------------
-- InputBox:input()
--
-- @title: input prompt for the box
-- @d_text: default to nil (used to set default text in input slot)
----------------------------------------------------------------------
function InputBox:input(ypos, height, title, d_text)
self:init()
-- do some initilization
self.ypos = ypos
self.h = height
self.input_start_y = ypos + 35
self.input_cur_x = self.input_start_x
self.input_slot_w = fb.bb:getWidth() - 170
self.cursor = Cursor:new {
x_pos = self.input_start_x - 3,
y_pos = ypos + 13,
h = 30,
}
-- draw box and content
w = fb.bb:getWidth() - 40
h = height - 45
self:drawHelpMsg(ypos, w, h)
self:drawBox(ypos, w, h, title)
if d_text then
self.input_string = d_text
self.input_cur_x = self.input_cur_x + (self.fwidth * d_text:len())
self.cursor.x_pos = self.cursor.x_pos + (self.fwidth * d_text:len())
self:refreshText()
end
self.cursor:draw()
fb:refresh(1, 20, ypos, w, h)
while true do
local ev = input.saveWaitForEvent()
ev.code = adjustKeyEvents(ev)
if ev.type == EV_KEY and ev.value == EVENT_VALUE_KEY_PRESS then
keydef = Keydef:new(ev.code, getKeyModifier())
print("key pressed: "..tostring(keydef))
command = self.commands:getByKeydef(keydef)
if command ~= nil then
print("command to execute: "..tostring(command))
ret_code = command.func(self, keydef)
else
print("command not found: "..tostring(command))
end
if ret_code == "break" then
ret_code = nil
break
end
end -- if
end -- while
local return_str = self.input_string
self.input_string = ""
return return_str
end
function InputBox:addAllCommands()
if self.commands then
-- we only initialize once
return
end
self.commands = Commands:new{}
INPUT_KEYS = {
{KEY_Q, "q"}, {KEY_W, "w"}, {KEY_E, "e"}, {KEY_R, "r"}, {KEY_T, "t"},
{KEY_Y, "y"}, {KEY_U, "u"}, {KEY_I, "i"}, {KEY_O, "o"}, {KEY_P, "p"},
{KEY_A, "a"}, {KEY_S, "s"}, {KEY_D, "d"}, {KEY_F, "f"}, {KEY_G, "g"},
{KEY_H, "h"}, {KEY_J, "j"}, {KEY_K, "k"}, {KEY_L, "l"},
{KEY_Z, "z"}, {KEY_X, "x"}, {KEY_C, "c"}, {KEY_V, "v"}, {KEY_B, "b"},
{KEY_N, "n"}, {KEY_M, "m"},
{KEY_1, "1"}, {KEY_2, "2"}, {KEY_3, "3"}, {KEY_4, "4"}, {KEY_5, "5"},
{KEY_6, "6"}, {KEY_7, "7"}, {KEY_8, "8"}, {KEY_9, "9"}, {KEY_0, "0"},
{KEY_SPACE, " "},
-- DXG keys
{KEY_DOT, "."}, {KEY_SLASH, "/"},
}
for k,v in ipairs(INPUT_KEYS) do
self.commands:add(v[1], nil, "",
"input "..v[2],
function(self)
self:addChar(v[2])
end
)
end
self.commands:add(KEY_FW_LEFT, nil, "",
"move cursor left",
function(self)
if (self.cursor.x_pos + 3) > self.input_start_x then
self.cursor:moveHorizontalAndDraw(-self.fwidth)
fb:refresh(1, self.input_start_x-5, self.ypos,
self.input_slot_w, self.h)
end
end
)
self.commands:add(KEY_FW_RIGHT, nil, "",
"move cursor right",
function(self)
if (self.cursor.x_pos + 3) < self.input_cur_x then
self.cursor:moveHorizontalAndDraw(self.fwidth)
fb:refresh(1, self.input_start_x-5, self.ypos,
self.input_slot_w, self.h)
end
end
)
self.commands:add({KEY_ENTER, KEY_FW_PRESS}, nil, "",
"submit input content",
function(self)
if self.input_string == "" then
self.input_string = nil
end
return "break"
end
)
self.commands:add(KEY_DEL, nil, "",
"delete one character",
function(self)
self:delChar()
end
)
self.commands:add(KEY_DEL, MOD_SHIFT, "",
"empty inputbox",
function(self)
self:clearText()
end
)
self.commands:add({KEY_BACK, KEY_HOME}, nil, "",
"cancel inputbox",
function(self)
self.input_string = nil
return "break"
end
)
end
----------------------------------------------------
-- Inputbox for numbers only
-- Designed by eLiNK
----------------------------------------------------
NumInputBox = InputBox:new{
initialized = false,
commands = Commands:new{},
}
function NumInputBox:addAllCommands()
self.commands = Commands:new{}
INPUT_NUM_KEYS = {
{KEY_Q, "1"}, {KEY_W, "2"}, {KEY_E, "3"}, {KEY_R, "4"}, {KEY_T, "5"},
{KEY_Y, "6"}, {KEY_U, "7"}, {KEY_I, "8"}, {KEY_O, "9"}, {KEY_P, "0"},
{KEY_1, "1"}, {KEY_2, "2"}, {KEY_3, "3"}, {KEY_4, "4"}, {KEY_5, "5"},
{KEY_6, "6"}, {KEY_7, "7"}, {KEY_8, "8"}, {KEY_9, "9"}, {KEY_0, "0"},
}
for k,v in ipairs(INPUT_NUM_KEYS) do
self.commands:add(v[1], nil, "",
"input "..v[2],
function(self)
self:addChar(v[2])
end
)
end -- for
self.commands:add(KEY_FW_LEFT, nil, "",
"move cursor left",
function(self)
if (self.cursor.x_pos + 3) > self.input_start_x then
self.cursor:moveHorizontalAndDraw(-self.fwidth)
fb:refresh(1, self.input_start_x-5, self.ypos,
self.input_slot_w, self.h)
end
end
)
self.commands:add(KEY_FW_RIGHT, nil, "",
"move cursor right",
function(self)
if (self.cursor.x_pos + 3) < self.input_cur_x then
self.cursor:moveHorizontalAndDraw(self.fwidth)
fb:refresh(1, self.input_start_x-5, self.ypos,
self.input_slot_w, self.h)
end
end
)
self.commands:add({KEY_ENTER, KEY_FW_PRESS}, nil, "",
"submit input content",
function(self)
if self.input_string == "" then
self.input_string = nil
end
return "break"
end
)
self.commands:add(KEY_DEL, nil, "",
"delete one character",
function(self)
self:delChar()
end
)
self.commands:add(KEY_DEL, MOD_SHIFT, "",
"empty inputbox",
function(self)
self:clearText()
end
)
self.commands:add({KEY_BACK, KEY_HOME}, nil, "",
"cancel inputbox",
function(self)
self.input_string = nil
return "break"
end
)
end
function NumInputBox:drawHelpMsg(ypos, w, h)
local w = 415
local y = ypos - 60
local x = (G_width - w) / 2
local h = 50
local bw = 2
local face = Font:getFace("scfont", 22)
fb.bb:paintRect(x, y, w, h, 15)
fb.bb:paintRect(x+bw, y+bw, w-2*bw, h-2*bw, 0)
local font_y = y + 22
local font_x = x + 22
INPUT_NUM_KEYS = {
{"Q", "1"}, {"W", "2"}, {"E", "3"}, {"R", "4"}, {"T", "5"},
{"Y", "6"}, {"U", "7"}, {"I", "8"}, {"O", "9"}, {"P", "0"},
}
for k,v in ipairs(INPUT_NUM_KEYS) do
renderUtf8Text(fb.bb, font_x, font_y, face,
v[1], true)
renderUtf8Text(fb.bb, font_x, font_y + 22, face,
v[2], true)
font_x = font_x + 40
end
fb:refresh(1, x, y, w, h)
end