Module: TKXXS_CLASSES

Defined in:
lib/tkxxs/tkxxs_classes.rb

Overview

Creates dialogs for TKXXS

Defined Under Namespace

Classes: AskMultiLineD, AskSingleLineD, ChooseDirD, FileAndDirChooser, MultiChoiceD, OpenFileD, OpenFilesD, SaveFileD, SingleChoiceD, TextW

Class Method Summary collapse

Class Method Details

.args_1(*args) ⇒ Object

Purpose:

Interpret last argument always as +Hash#, independent from the
number of arguments:

  • Searches for the first argument which is a Hash, from right to left, starting with the last argument. (TODO: Why not simply detect if the last argument is a Hash?)

  • If Hash exists:

** Move the hash to the last element of args. ** Set the element, where the Hash comes from to nil, if it was

not the last element.

** All other elements remain unchanged.

  • If no Hash exist:

** Sets the last element of args to {} ** All other elements remain unchanged.

Returns: The rearranged args.

Example:

def m1( c=nil,b=nil,a=nil,h=nil )
  c, b, a, hash = args_1(c,b,a,h)
  p [c, b, a, hash]

  hash = {:a=>'aa',
  :b=>'bb',
  :c=>'cc'
  }.merge(hash)

  c = hash[:c] unless c  
  b = hash[:b] unless b  
  a = hash[:a] unless a 
  nil
end # m1

m1(:c,:b,:a, {:h=>'hh'}) # => [:c, :b, :a, {:h=>"hh"}] 
m1(:c, {:h=>'hh'})       # => [:c, nil, nil, {:h=>"hh"}] 
m1(:c)                   # => [:c, nil, nil, {}] 
m1()                     # => [nil, nil, nil, {}]



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# File 'lib/tkxxs/tkxxs_classes.rb', line 65

def TKXXS_CLASSES.args_1( *args )
  args = args.reverse
  args.each_with_index {|arg, i|
    if arg.class == Hash
      args[i] = nil
      args[0] = arg
      break
    end
  }
  args[0] =
  unless args[0]
    {}
  else
    ## Marshal.load(Marshal.dump( args[0] ) ) # Doesn't work because of Proc

    args[0].dup2! # args[0] must always be a Hash

  end
  args = args.reverse
  args
end

.args_2(help, hash, question, *keys) ⇒ Object

Set the value of new variables from the values of the hash.

New variables are always: question and help.

‘hash’ gets modified.

On the left side of the equal sign: always ‘help, hash, question’, thereafter the additional variables.

Arguments of args_2: ‘help,hash,question’ and then the (optional) hash-keys, which shall be assigned to the additional variables. :help and :question can be put at arbitrary position, or omitted. hash must have: :question.

If the variable help and/or question are already set (not equal nil), then they leave unchanged.

EXAMPLE:

help = 'h'
hash = {
  :help=>'heeelp', 
  :question=>'MyQuestion', 
  :title=>'MyTitle', 
  :SomethingElse=>'bla'
}
help, hash, question, title = 
        TKXXS_CLASSES.args_2( help, hash, question, :title)
# => ["h", {:SomethingElse=>"bla"}, "MyQuestion", "MyTitle"]

  • ‘h’ in help not overwritten, because help was defined before;

  • Every key in hash deleted, which corresponds to the args of args_2;

  • question now set, because it was not defined before;

  • title set to hash[:title]



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# File 'lib/tkxxs/tkxxs_classes.rb', line 119

def TKXXS_CLASSES.args_2( help,hash,question,*keys )
  hash.delete(:configSection) if hash[:configSection]
  q = hash.delete(:question)
  question = q unless question
  h = hash.delete(:help)
  help = h unless help

  values = [help,hash,question]
  keys.each {|key|
    val = hash.delete(key)
    values << val
  }
  values[1] = hash
  values
end