testsubw.rb

# this is a test program, testing out
# subwindows and pads in ncurses + ruby. Testing out
# prefresh, copywin overwrite etc. All worked finally.
#$LOAD_PATH << "/Users/rahul/work/projects/rbcurse/"
require 'rubygems'
require 'ncurses'
require 'logger'
require 'rbcurse'
require 'rbcurse/rtabbedpane'

class TestSubwin
  def initialize
    acolor = $reversecolor
    #$config_hash ||= {}
  end
  def run
    @layout1 = { :height => 20, :width => 75, :top => 3, :left => 3 }
    @window = VER::Window.root_window #(@layout1)
    h = 8; w = 35; t = 5; l = 13
    @layout = { :height => 2, :width => w, :top => t, :left => l }
    @layout2 = { :height => h-2, :width => w, :top => t+2, :left => l }
    @wins = []
    @pads = []
    3.times(){ @wins << @window.derwin(@layout2) 
      @pads << Ncurses.newpad(@layout2[:height], @layout2[:width])
        _pad = @pads.last
        i = @pads.length
        @panels = _pad.new_panel

      @pads.last.box(0,0)

      _pad.attron(Ncurses.COLOR_PAIR(i))
      @pads.last.mvprintw(1, 1, "%s", "HELLO THERE");
      @pads.last.mvprintw(2, 1, "%s", "HeLLO THERE");
      @pads.last.mvprintw(3, 1, "%s", "HEllo THERE");
      _pad.attroff(Ncurses.COLOR_PAIR(i))
      }
    @subwin= @window.derwin(@layout)
    @subwin.box(0,0)
    #@window.get_window().touchwin()
    @subwin.wrefresh
        @window.printstring(1,10,"Ncurses Subwindow test",0)
        @window.printstring(2,10,"q to quit",2)
        @subwin.printstring(0,1,"subwin 1",1, 'reverse')
        #
    @form = Form.new @subwin
      @help = "q to quit. "
            RubyCurses::Label.new @form, {'text' => @help, "row" => 1, "col" => 2, "color" => "yellow"}
      @form.repaint
      @window.wrefresh
      Ncurses::Panel.update_panels
      ctr = 0
      while((ch = @subwin.getchar()) != ?q.getbyte(0) )
       # @tp.repaint
        ix = ctr % 3
        ctr += 1
        awin = @wins[ix]
        apad = @pads[ix]
        #awin.werase
        ret = "xx"
        #ret = apad.overwrite(awin.get_window())
        #ret = apad.overwrite(@window.get_window()) # ok but no control over location
        #ret = Ncurses.overwrite(apad, @window.get_window()) # ok but no control over location
        #ret = @window.get_window().overwrite(apad)
        $log.debug(" overwrite ret = #{ret}")

        @wins.each { |w|
          p = w.panel
          @subwin.printstring(1,(ix+6)*ix,"subwin #{ix}",ix, 'reverse')
        }
        #ret = apad.prefresh(0,0, @layout2[:top], @layout2[:left], @layout2[:top]+@layout2[:height],@layout2[:left]+@layout2[:width])
        #ret = apad.copywin(@window.get_window,0,0, @layout2[:top], @layout2[:left], @layout2[:top]+@layout2[:height],@layout2[:left]+@layout2[:width],1)
        #ret = apad.copywin(@window.get_window,0,0, 7, 13, 7+5, 13+35, 1) # works
        # next works but use one less for h and w
        ret = apad.copywin(awin.get_window,0,0, 0, 0, 5, 34, 1) # works XXX but flaky, why not 35
        #ret = apad.prefresh(0,0,7, 13, @layout2[:height]+7, @layout2[:width])
        $log.debug(" prefresh ret = #{ret}")
        #awin.wrefresh
        # next 2 lines required by copywin by not by prefresh
        @window.wrefresh
        Ncurses::Panel.update_panels
        #@subwin.printstring(2,1,"Entered #{ch.chr}", 1)
=begin
        1.upto(5) {|ii|
        awin.printstring(ii,1,"#{ii} SW #{ix} Entered #{ch.chr} hello there sammy", ix)
        awin.getchar()
        }
=end
        #@window.get_window().touchwin() # supposedly required <<< was clearing prefresh XXX
        #@subwin.wrefresh
        #awin.wrefresh
        #@window.wrefresh
      end

      @subwin.destroy
      @wins.each {|w| w.destroy}
      @window.destroy

  end
end
if $0 == __FILE__
  # Initialize curses
  begin
    # XXX update with new color and kb
    VER::start_ncurses  # this is initializing colors via ColorMap.setup
    $log = Logger.new("view.log")
    $log.level = Logger::DEBUG
    n = TestSubwin.new
    n.run
  rescue => ex
  ensure
    VER::stop_ncurses
    p ex if ex
    p(ex.backtrace.join("\n")) if ex
    $log.debug( ex) if ex
    $log.debug(ex.backtrace.join("\n")) if ex
  end
end