I have debugged the code and found the w of MeterString had the right value I want, but somehow a part of it missed.
```ini
Code: Select all
[Rainmeter]
Update = #Update#
; Variables option is to define variables
[Variables]
; all time variable's unit is millisecond
Update = 100
RefreshTime = 300*1000
Scale = 1
[Script]
Measure = Script
ScriptFile = text.lua
; define a kind of style for the text
[TextStyle]
; family name of the font to be used in the skin
FontFace = 宋体
FontColor = 255, 255, 255, 255
; you could categorize sections by group, it will make it convenient to put bang into
; multiple sections. It means you only to invoke a bang with parameter, whose type is group,
; to achive it.
Group = StringGroup
StringEffect = Shadow
; determine the background color of the text, and (0, 0, 0, 1) has a benefit when you execute
; mouse actions while the background color is virtually transparent
SolidColor = 0, 0, 0, 1
AntiAlias = 1
; the main part of a motto
[MeterString]
DynamicVariables = 1
Meter = String
; you can regard measure section as a function and it will return a string value
; [] denotes a bang which is a kind of function represented by section
; & denotes the section is a customized section but a built-in section
Text = " [&Script:GetText()]"
; a meter has different types, and a type of meter has different styles
; however, the MeterStyle is customizable, and it is represented by a section
MeterStyle = TextStyle
FontSize = 17*#Scale#
; to decide the position of the meter
X = 0L
W = [&Script:Calc()]
clipString = 2
LeftMouseUpAction = !CommandMeasure Script "MyUpdate()"
; the secondary of a motto
[MeterSecondaryString]
DynamicVariables = 1
Meter = String
Text = [&Script:GetSecondaryText()]
FontSize = (14*#Scale#)
MeterStyle = TextStyle
X = (-25*#Scale#)R
; Y = (-15*#Scale#)R
Y = [MeterString:H]
H = 30*#Scale#
clipString = 2
LeftMouseUpAction = !CommandMeasure Script "MyUpdate()"
```Code: Select all
function GetText()
return JSON[ID].Text
end
function GetSecondaryText()
return JSON[ID].SecondaryText
end
MyUpdate = function()
ID = math.random(1, #JSON)
end
function Initialize()
-- *** retrieve the content of a file ***
-- io is a class in lua and read funtion in it creats a instance as return value
local relativePath = "motto.json"
-- io.open could not directly resolve to relative path and you have use
-- SKIN:MakePathAbsolute to convert the relative to the absolute.
-- through colon we can infer that SKIN is an object and the object has to be a parameter
-- in the function and the SKIN is an unique object representing current skin
local absolutePath = SKIN:MakePathAbsolute(relativePath)
local file = io.open(absolutePath, "r")
if file then
-- if you need to have a object parameter, then use colon
-- if you need not to have a object parameter, then use dot
-- string "*a" is a kind of control parameters and means to
-- read whole content of the file
-- beaware that a local variable has its scope limited to the
-- block where it is declared. a block is the body of a control structure
Content = file:read("*a")
-- like c++, a opened file needs closing after using
file:close()
-- the second parameter's type is number and means the error's level
-- if it is 2, the error output will include the number column where
-- the error occurs.
else error("The file doesn't exits.", 2)
end
-- *** parse the content of json ***
-- dofile is to include external library or lua snippet into the current script
-- GetVariable is a function of skin aiming to retrieve variables in the skin
-- @ represents the directory of current skin resource folder
-- the return value is an object indicating a lua file
cjson = dofile(SKIN:GetVariable("@")..'Script\\json.lua')
-- decode is a function in the json.lua file
JSON = cjson.decode(Content)
-- *** Initialize which motto is chosen ***
-- math is a object and you do not need to use data in math object so
ID = math.random(1, #JSON)
end
function Min(a, b)
return a < b and a or b
end
function Calc()
local length = #JSON[ID].Text
-- like document in javascript
local scale = SKIN:GetVariable("Scale")
local result = Min(700, 15*scale*length)
print(result)
return result
end
```
