Class: Canis::Progress

Inherits:
Widget show all
Defined in:
lib/canis/core/widgets/rprogress.rb

Overview

TODO user may want to print a label on progress: like not started or complete.

Instance Attribute Summary

Attributes inherited from Widget

#_object_created, #col_offset, #config, #curpos, #focussed, #form, #handler, #id, #key_label, #parent_component, #row_offset, #state

Instance Method Summary collapse

Methods inherited from Widget

#action_manager, #bgcolor, #color, #color_pair, #command, #destroy, #focus, #focusable, #focusable?, #getvalue_for_paint, #handle_key, #hide, #init_vars, #modified?, #move, #on_enter, #on_leave, #override_graphic, #process_key, #property_set, #remove, #repaint_all, #repaint_required, #rowcol, #set_form, #set_form_col, #set_form_row, #set_modified, #setformrowcol, #setrowcol, #show, #unbind_key

Methods included from Io

#__create_footer_window, #clear_this, #get_file, #print_this, #rb_getchar, #rb_gets, #rb_getstr, #warn

Methods included from Utils

#ORIG_process_key, #ORIGbind_key, #ORIGkeycode_tos, #_process_key, #bind_composite_mapping, #bind_key, #bind_keys, #check_composite_mapping, #create_logger, #define_key, #define_prefix_command, #execute_mapping, #get_attrib, #get_color, #key, #key_tos, #print_key_bindings, #repeatm, #run_command, #shell_out, #shell_output, #suspend, #view, #xxxbind_composite_mapping

Methods included from ConfigSetup

#config_setup, #variable_set

Methods included from EventHandler

#bind, #event?, #event_list, #fire_handler, #fire_property_change, #register_events

Constructor Details

#initialize(form, config = {}, &block) ⇒ Progress

Returns a new instance of Progress.



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# File 'lib/canis/core/widgets/rprogress.rb', line 19

def initialize form, config={}, &block

  @row = config.fetch("row",-1) 
  @col = config.fetch("col",-1) 
  @bgcolor = config.fetch("bgcolor", $def_bg_color)
  @color = config.fetch("color", $def_fg_color)
  @name = config.fetch("name", "pbar")
  @editable = false
  @focusable = false
  super
  @surround_chars ||= "[]" # for :old style
  @repaint_required = true
end

Instance Method Details

#getvalue ⇒ Object 



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# File 'lib/canis/core/widgets/rprogress.rb', line 32

def getvalue
  @fraction || 0.0
end

#repaint ⇒ Object 



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# File 'lib/canis/core/widgets/rprogress.rb', line 38

def repaint
  return unless @repaint_required
  $log.debug " XXXX PBAR inside repaint #{@color} , #{@fraction} "
  r,c = rowcol
  #value = getvalue_for_paint
  acolor = get_color @bgcolor
  bcolor = get_color @color
  @graphic = @form.window if @graphic.nil? ## HACK messagebox givig this in repaint, 423 not working ??
  len = 0
  w2 = @width - 6 #2 account for brackets and printing of percentage
  if @fraction
    @fraction = 1.0 if @fraction > 1.0
    @fraction = 0 if @fraction < 0
    if @fraction > 0
      len = @fraction * @width
    end
  end
  if @style == :old
    ftext=""
    char = @char || "="
    if @fraction && @fraction >= 0
      len = @fraction * (w2) 
      ftext << sprintf("%3d%s",(@fraction * 100).to_i, "%")
    end
    incomplete = w2 - len
    complete = len
    # I am printing 2 times since sometimes the ending bracket gets printed one position less
    str = @surround_chars[0] + " "*w2 + @surround_chars[1] + ftext
    @graphic.printstring r, c, str , acolor,@attr
    str = char*complete 
    str[-1] = ">" if char == "=" && complete > 2
    @graphic.printstring r, c+1, str , acolor,@attr
  else

    char = @char || " "
    # first print the background horizonal bar
    @graphic.printstring r, c, " " * @width , acolor,@attr

    # if the user has passed a percentage we need to print that in @color
    if @fraction
      #bcolor = get_color @color
      #@fraction = 1.0 if @fraction > 1.0
      #@fraction = 0 if @fraction < 0
      #if @fraction > 0
      #len = @fraction * @width
      #char = @char || " "

      # if text is to printed over the bar
      if @text
        textcolor = get_color $datacolor, 'black'
        txt = @text
        txt = @text[0..@width] if @text.length > @width
        textattr = 'bold'
        # write the text in a color that contrasts with the background
        # typically black
        @graphic.printstring r, c, txt , textcolor, textattr if @text

        # now write the text again, in a color that contrasts with the progress
        # bar color that is expanding. However, the text must be padded to len and truncated 
        # to len as well. it must be exactly len in size.
        txt = sprintf("%-*s", len, txt)
        if len > 0
          if len < txt.length
            txt = txt[0..len]
          end
          textcolor = get_color $datacolor, 'white', @color
          @graphic.printstring r, c, txt , textcolor, textattr if @text
        end
      else
        # no text was given just print a horizontal bar
        @graphic.printstring r, c, char * len , bcolor, 'reverse'
      end
    end # frac > 0
  end # fraction
end