Class: Terminal

Inherits:
Object show all
Defined in:
lib/ruiby_gtk/ruiby_terminal.rb

Instance Method Summary collapse

Constructor Details

#initialize(tv, win) ⇒ Terminal

Returns a new instance of Terminal


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# File 'lib/ruiby_gtk/ruiby_terminal.rb', line 7

def initialize(tv,win)
  @tv=tv
  #@tv.override_font(  Pango::FontDescription.new("courier bold 10")) 
  @tb=tv.buffer
  @win=win
  def tv.terminal(term=nil) @term ? @term : (@term=term) end
  tv.terminal(self)
  @@history||= ["nop"]
  @history=@@history
  @position=@history.size-1
  append_and_prompt ""
end

Instance Method Details

#append(text) ⇒ Object


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# File 'lib/ruiby_gtk/ruiby_terminal.rb', line 29

def append(text)
  text=text.to_s
  buf_start, end_iter = @tb.bounds
  @tb.insert(end_iter,text)
  insert=@tb.create_mark("insert", @tb.bounds.last, true)
  @win.after(100) {
    vscroll=@tv.parent.vadjustment
    vscroll.value = vscroll.upper+8
  }
end

#append_and_prompt(text) ⇒ Object


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# File 'lib/ruiby_gtk/ruiby_terminal.rb', line 19

def append_and_prompt(text)
  text=text.to_s
  buf_start, end_iter = @tb.bounds
  @tb.insert(end_iter,"\n#{text}\n> ")
  insert=@tb.create_mark("insert", @tb.bounds.last, true)
  @win.after(100) {
    vscroll=@tv.parent.vadjustment
    vscroll.value = vscroll.upper+8
  }
end

#execute(line = nil) ⇒ Object


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# File 'lib/ruiby_gtk/ruiby_terminal.rb', line 59

def execute(line=nil)
  line||=get_line
  line=line.strip
  return if line.size==0
  
  @history << line if line!= @history.last
  @position= @history.size
  cmd,*args=line.split(/\s+/)
  case cmd 
    when /^vim?$/
      system("vim",*args)
      append_and_prompt ""
    when "clear","clr","cls"
      @tb.text=""
      append_and_prompt ""        
    when "tree"
      @win.wtree(@win)
      append_and_prompt ""
    when "help"
      append_and_prompt <<-EEND
        help                       : show this message
        vim filename               : edit file
        clear (alias clr or cls)   : clear console
        tree                       : print widget tree of main window in log
        h [number]                 : show history commands / recal command
        show object                : show methods of object in log window
        echo params...             : evaluate params in main window and print values
        techo params...            : (debug terminal) evaluate in terminal object and print
        os commands (ls,find,perl...)
        exit                       : destroy this terminal
        ; see ruiby_terminal.rb for append some commands :)
      EEND
    when "h","history"
      if args.size==0
        s=@history.size
        append_and_prompt @history.each_with_index.map {|l,i| 
           "   %3d >%s" % [s-i,l]
          }.last(40).join("\n")
      else
        cmd=@history[-args.first.to_i-1]
        append_and_prompt "<<#{cmd}>>"
        execute cmd
      end
    when "show"
      @win.show_methods( @win.instance_eval(args.first) )
      append_and_prompt ""
    when "echo"
      append_and_prompt( @win.instance_eval(args.join(" ")))
    when "techo"
      append_and_prompt( self.instance_eval(args.join(" ")))
    when "exit"
      @tv.parent.parent.parent.parent.close
    when /^(ls|ll|mv|grep|find|gfind|awk|ruby|sh|python|perl|julia)$/
      if @win.ask("execute <<#{line}>>  ?")
        append ""
        Open3.popen3(*([cmd]+args)) do |i,o,e|
          while q=IO.select([o]) 
            append s=q.first.first.read
            break if !s || s.size==0
            Ruiby.update
          end
        end
        append_and_prompt(">>> end execute.")
      end
    else
      begin
        res=@win.instance_eval(line)
        append_and_prompt(res.to_s)
      end
  end
end

#get_history(n = -1)) ⇒ Object


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# File 'lib/ruiby_gtk/ruiby_terminal.rb', line 47

def get_history(n=-1)
  @position= [0,@history.size-1,@position+n].sort[1]
  @history[@position]
end

#get_lineObject


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# File 'lib/ruiby_gtk/ruiby_terminal.rb', line 55

def get_line()
  (@tb.text||"").split(/\r?\n/).last.gsub(/^\s*>\s*/,"")
end

#replace_current(text) ⇒ Object


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# File 'lib/ruiby_gtk/ruiby_terminal.rb', line 39

def replace_current(text)
  l = @tb.line_count
  start = @tb.get_iter_at(line: l-1)  
  eend = @tb.end_iter()
  @tb.delete(start,eend)    
  append(text)
end

#set_history(n = -1)) ⇒ Object


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# File 'lib/ruiby_gtk/ruiby_terminal.rb', line 51

def set_history(n=-1)
  text=get_history(n)
  replace_current(text)
end