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add: first demo of cursor support

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This commit is contained in:
Qingping Hou
2012-03-15 17:03:09 +08:00
parent 9dd3994dd8
commit a231b944c1
3 changed files with 161 additions and 33 deletions
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69
inputbox.lua
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@@ -4,6 +4,7 @@ require "graphics"
InputBox = {
-- Class vars:
h = 100,
input_start_x = 145,
input_start_y = nil,
input_cur_x = nil, -- points to the start of next input pos
@@ -15,6 +16,8 @@ InputBox = {
shiftmode = false,
altmode = false,
cursor = nil,
-- font for displaying input content
face = freetype.newBuiltinFace("mono", 25),
fhash = "m25",
@@ -22,13 +25,6 @@ InputBox = {
fwidth = 16,
}
function InputBox:setDefaultInput(text)
self.input_string = ""
self:addString(text)
--self.input_cur_x = self.input_start_x + (string.len(text) * self.fwidth)
--self.input_string = text
end
function InputBox:addString(str)
for i = 1, #str do
self:addChar(str:sub(i,i))
@@ -36,9 +32,13 @@ function InputBox:addString(str)
end
function InputBox:addChar(char)
renderUtf8Text(fb.bb, self.input_cur_x, self.input_start_y, self.face, self.fhash,
char, true)
fb:refresh(1, self.input_cur_x, self.input_start_y-19, self.fwidth, self.fheight)
self.cursor:moveHorizontal(self.fwidth)
renderUtf8Text(fb.bb, self.input_cur_x, self.input_start_y,
self.face, self.fhash,
char, true)
fb:refresh(1, self.input_cur_x - self.cursor.w - self.fwidth,
self.input_start_y-25,
self.fwidth*2 + self.cursor.w*2, self.h-25)
self.input_cur_x = self.input_cur_x + self.fwidth
self.input_string = self.input_string .. char
end
@@ -50,8 +50,10 @@ function InputBox:delChar()
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.fwidth, self.fheight, self.input_bg)
self.cursor:moveHorizontal(-self.fwidth)
fb:refresh(1, self.input_cur_x, self.input_start_y-25,
self.fwidth + self.cursor.w, self.h-25)
self.input_string = self.input_string:sub(0,-2)
end
@@ -66,35 +68,36 @@ function InputBox:drawBox(ypos, w, h, title)
end
--[[
|| d_text default to nil (used to set default text in input slot)
--]]
----------------------------------------------------------------------
-- 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)
local pagedirty = true
-- do some initilization
self.h = height
self.input_start_y = ypos + 35
self.input_cur_x = self.input_start_x
self.cursor = Cursor:new {
x_pos = 140,
y_pos = ypos + 13,
h = 30,
}
if d_text then -- if specified default text, draw it
w = fb.bb:getWidth() - 40
h = height - 45
self:drawBox(ypos, w, h, title)
self:setDefaultInput(d_text)
fb:refresh(1, 20, ypos, w, h)
pagedirty = false
else -- otherwise, leave the draw task to the main loop
self.input_string = ""
if d_text then
self.input_string = d_text
end
while true do
if pagedirty then
w = fb.bb:getWidth() - 40
h = height - 45
self:drawBox(ypos, w, h, title)
fb:refresh(1, 20, ypos, w, h)
pagedirty = false
end
-- draw box and content
w = fb.bb:getWidth() - 40
h = height - 45
self:drawBox(ypos, w, h, title)
self.cursor:draw()
self:addString(self.input_string)
fb:refresh(1, 20, ypos, w, h)
while true do
local ev = input.waitForEvent()
ev.code = adjustKeyEvents(ev)
if ev.type == EV_KEY and ev.value == EVENT_VALUE_KEY_PRESS then