Class: RubyCurses::Listbox

Inherits:
Widget
  • Object
show all
Includes:
ListScrollable, ListKeys, ListSelectable
Defined in:
lib/rbcurse/rlistbox.rb

Overview

this is the new LISTBOX, based on new scrollable.

Constant Summary

Constants included from Io

Io::ERROR_COLOR_PAIR, Io::FOOTER_COLOR_PAIR, Io::LINEONE, Io::MAIN_WINDOW_COLOR_PAIR

Instance Attribute Summary collapse

Attributes included from ListSelectable

#column_selection_allowed, #row_selection_allowed

Attributes included from ListScrollable

#find_offset, #find_offset1, #search_found_ix, #show_caret

Attributes inherited from Widget

#col_offset, #cols_panned, #config, #curpos, #ext_col_offset, #ext_row_offset, #form, #id, #parent_component, #row_offset, #rows_panned, #should_create_buffer, #state

Instance Method Summary collapse

Methods included from ListKeys

#install_list_keys

Methods included from ListSelectable

#add_row_selection_interval, #clear_selection, #create_default_list_selection_model, #do_next_selection, #do_prev_selection, #is_row_selected, #list_selection_model, #remove_row_selection_interval, #selected_item, #selected_row, #selected_row_count, #selected_rows, #toggle_row_selection

Methods included from ListScrollable

#OLDscrollable_handle_key, #OLDset_focus_on, #_find_next, #_find_prev, #ask_search, #bounds_check, #find_more, #find_next, #find_prev, #focussed_index, #forward_char, #forward_word, #goto_bottom, #goto_last_position, #goto_top, #install_keys, #next_match, #next_row, #previous_row, #scroll_backward, #scroll_forward, #scroll_left, #scroll_right, #selected_item, #set_focus_on, #set_form_row, #set_selection_for_char, #show_caret_func

Methods inherited from Widget

#OLDbind_key, #buffer_to_screen, #buffer_to_window, #create_buffer, #destroy, #destroy_buffer, #focus, #get_buffer, #get_color, #get_preferred_size, #getvalue_for_paint, #height, #height=, #hide, #is_double_buffered?, #modified?, #move, #on_leave, #override_graphic, #printstring, #process_key, #remove, #repaint_all, #repaint_required, #rowcol, #safe_create_buffer, #set_buffer_modified, #set_form, #set_form_row, #set_modified, #setformrowcol, #setrowcol, #show, #text_variable, #unbind_key, #width, #width=

Methods included from Io

#askchoice, #askyesno, #askyesnocancel, #clear_error, #clear_this, #get_string, #newaskyesno, #old_print_header, #old_print_top_right, #print_action, #print_error, #print_footer_help, #print_header, #print_headers, #print_help, #print_help_page, #print_in_middle, #print_key_labels, #print_key_labels_row, #print_screen_labels, #print_status, #print_this, #print_top_right, #rbgetstr

Methods included from Utils

#_process_key, #bind_key, #clean_string!, #get_color, #keycode_tos, #repeatm, #wrap_text

Methods included from ConfigSetup

#cget, #config_setup, #configure, #variable_set

Methods included from EventHandler

#bind, #fire_handler, #fire_property_change

Methods included from DSL

#OLD_method_missing

Constructor Details

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

Returns a new instance of Listbox.



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# File 'lib/rbcurse/rlistbox.rb', line 416

def initialize form, config={}, &block
  @focusable = true
  @editable = false
  @row = 0
  @col = 0
  # data of listbox
  @list = []
  # any special attribs such as status to be printed in col1, or color (selection)
  @list_attribs = {}
  super
  @current_index ||= 0
  @row_offset = @col_offset = 1
  @content_rows = @list.length
  @selection_mode ||= 'multiple'
  @win = @graphic    # 2010-01-04 12:36 BUFFERED  replace form.window with graphic
  # moving down to repaint so that scrollpane can set should_buffered
  # added 2010-02-17 23:05  RFED16 so we don't need a form.
  @win_left = 0
  @win_top = 0

#x      safe_create_buffer # 2010-01-04 12:36 BUFFERED moved here 2010-01-05 18:07 
#x      print_borders unless @win.nil?   # in messagebox we don;t have window as yet!
  # next 2 lines carry a redundancy
  select_default_values   
  # when the combo box has a certain row in focus, the popup should have the same row in focus

  install_keys
  init_vars
  install_list_keys

  if !@list.selected_index.nil? 
    set_focus_on @list.selected_index # the new version
  end
end

Instance Attribute Details

#current_index ⇒ Object

Returns the value of attribute current_index.



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# File 'lib/rbcurse/rlistbox.rb', line 396

def current_index
  @current_index
end

#one_key_selection ⇒ Object

will pressing a single key select or not



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# File 'lib/rbcurse/rlistbox.rb', line 414

def one_key_selection
  @one_key_selection
end

#toprow ⇒ Object (readonly)

dsl_accessor :list # the array of data to be sent by user



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# File 'lib/rbcurse/rlistbox.rb', line 389

def toprow
  @toprow
end

Instance Method Details

#ask_search_backward ⇒ Object

gets string to search and calls data models find prev



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# File 'lib/rbcurse/rlistbox.rb', line 678

def ask_search_backward
  regex =  get_string("Enter regex to search (backward)")
  @last_regex = regex
  ix = @list.find_prev regex, @current_index
  if ix.nil?
    alert("No matching data for: #{regex}")
  else
    set_focus_on(ix)
  end
end

#ask_search_forward ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 668

def ask_search_forward
    regex =  get_string("Enter regex to search")
    ix = @list.find_match regex
    if ix.nil?
      alert("No matching data for: #{regex}")
    else
      set_focus_on(ix)
    end
end

#ask_selection_for_char ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 661

def ask_selection_for_char
  ch = @graphic.getch
  if ch < 0 || ch > 255
    return :UNHANDLED
  end
  ret = set_selection_for_char ch.chr
end

#cancel_block ⇒ Object

added on 2009-02-19 22:37



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# File 'lib/rbcurse/rlistbox.rb', line 928

def cancel_block
  @first_index = @last_index = nil
  @inside_block = false
end

#cell_editor(*val) ⇒ Object

getter and setter for cell_editor



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# File 'lib/rbcurse/rlistbox.rb', line 782

def cell_editor(*val)
  if val.empty?
    @cell_editor ||= create_default_cell_editor
  else
    @cell_editor = val[0] 
  end
end

#cell_renderer(*val) ⇒ Object

getter and setter for cell_renderer



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# File 'lib/rbcurse/rlistbox.rb', line 794

def cell_renderer(*val)
  if val.empty?
    @cell_renderer ||= create_default_cell_renderer
  else
    @cell_renderer = val[0] 
  end
end

#create_default_cell_editor ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 789

def create_default_cell_editor
  return RubyCurses::CellEditor.new RubyCurses::Field.new nil, {"focusable"=>false, "visible"=>false, "display_length"=> @width-2-@left_margin}
end

#create_default_cell_renderer ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 801

def create_default_cell_renderer
  return RubyCurses::ListCellRenderer.new "", {"color"=>@color, "bgcolor"=>@bgcolor, "parent" => self, "display_length"=> @width-2-@left_margin}
end

#edit_row_at(arow) ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 725

def edit_row_at arow
  if @cell_editing_allowed
    #$log.debug " cell editor on enter #{arow} val of list[row]: #{@list[arow]}"
    editor = cell_editor
    prepare_editor editor, arow
  end
end

#editing_canceled(arow = @current_index) ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 774

def editing_canceled arow=@current_index
  return unless @cell_editing_allowed
  prepare_editor @cell_editor, arow
  @repaint_required = true
end

#editing_completed(arow) ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 762

def editing_completed arow
  if @cell_editing_allowed
    if !@cell_editor.nil?
  #    $log.debug " cell editor (leave) setting value row: #{arow} val: #{@cell_editor.getvalue}"
      $log.debug " cell editor #{@cell_editor.component.form.window} (leave) setting value row: #{arow} val: #{@cell_editor.getvalue}"
      @list[arow] = @cell_editor.getvalue #.dup 2009-01-10 21:42 boolean can't duplicate
    else
      $log.debug "CELL EDITOR WAS NIL, #{arow} "
    end
  end
  @repaint_required = true
end

#end_block ⇒ Object

sets marker for end of block added on 2009-02-19 22:37



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# File 'lib/rbcurse/rlistbox.rb', line 940

def end_block #selection
  @last_index = current_index
  lower = [@first_index, @last_index].min
  higher = [@first_index, @last_index].max
  #lower.upto(higher) do |i| @list.toggle_row_selection i; end
  add_row_selection_interval(lower, higher)
  @repaint_required = true
end

#get_content ⇒ Object

START FOR scrollable ###



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# File 'lib/rbcurse/rlistbox.rb', line 545

def get_content
  #@list 2008-12-01 23:13 
  @list_variable && @list_variable.value || @list 
end

#get_window ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 549

def get_window
  @graphic # 2010-01-04 12:37 BUFFERED
end

#getvalue ⇒ Object

END FOR scrollable ### override widgets text



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# File 'lib/rbcurse/rlistbox.rb', line 554

def getvalue
  selected_rows
end

#handle_key(ch) ⇒ Object

Listbox



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# File 'lib/rbcurse/rlistbox.rb', line 558

def handle_key(ch)
  @current_index ||= 0
  @toprow ||= 0
  h = scrollatrow()
  rc = row_count
  $log.debug " listbxo got ch #{ch}"
  #$log.debug " when kps #{@KEY_PREV_SELECTION}  "
  case ch
  when KEY_UP  # show previous value
    previous_row
  when KEY_DOWN  # show previous value
    next_row
  when @KEY_ROW_SELECTOR # 32
    return if is_popup and @selection_mode == 'single' # not allowing select this way since there will be a difference 
    toggle_row_selection @current_index #, @current_index
    @repaint_required = true
  when @KEY_SCROLL_FORWARD # ?\C-n
    scroll_forward
  when @KEY_SCROLL_BACKWARD #  ?\C-p
    scroll_backward
  when @KEY_GOTO_TOP # 48, ?\C-[
    # please note that C-[ gives 27, same as esc so will respond after ages
    goto_top
  when @KEY_GOTO_BOTTOM # ?\C-]
    goto_bottom
  when @KEY_NEXT_SELECTION # ?'
    $log.debug "insdie next selection"
    @oldrow = @current_index
    do_next_selection #if @select_mode == 'multiple'
    bounds_check
  when @KEY_PREV_SELECTION # ?"
    @oldrow = @current_index
    $log.debug "insdie prev selection"
    do_prev_selection #if @select_mode == 'multiple'
    bounds_check
  when @KEY_CLEAR_SELECTION
    clear_selection #if @select_mode == 'multiple'
    @repaint_required = true
  when 27, ?\C-c.getbyte(0)
    editing_canceled @current_index if @cell_editing_allowed
    cancel_block # block
    $multiplier = 0
  when @KEY_ASK_FIND_FORWARD
  # ask_search_forward
  when @KEY_ASK_FIND_BACKWARD
  # ask_search_backward
  when @KEY_FIND_NEXT
  # find_next
  when @KEY_FIND_PREV
  # find_prev
  when @KEY_ASK_FIND
    ask_search
  when @KEY_FIND_MORE
    find_more
  when @KEY_BLOCK_SELECTOR
    mark_block #selection
  #when ?\C-u.getbyte(0)
    # multiplier. Series is 4 16 64
    # TESTING @multiplier = (@multiplier == 0 ? 4 : @multiplier *= 4)
  #  return 0
  when ?\C-c.getbyte(0)
    @multiplier = 0
    return 0
  else
    # this has to be fixed, if compo does not handle key it has to continue into next part FIXME
    ret = :UNHANDLED # changed on 2009-01-27 13:14 not going into unhandled, tab not released
    if @cell_editing_allowed
      @repaint_required = true
      # hack - on_enter_row should fire when this widget gets focus. first row that is DONE
      begin
        ret = @cell_editor.component.handle_key(ch)
      rescue
        on_enter_row @current_index
        ret = @cell_editor.component.handle_key(ch)
      end
    end
    if ret == :UNHANDLED
      if @one_key_selection
        case ch
        when ?A.getbyte(0)..?Z.getbyte(0), ?a.getbyte(0)..?z.getbyte(0), ?0.getbyte(0)..?9.getbyte(0)
          # simple motion, key press defines motion
          ret = set_selection_for_char ch.chr
        else
          ret = process_key ch, self
          @multiplier = 0
          return :UNHANDLED if ret == :UNHANDLED
        end
      else
        # no motion on single key, we can freak out like in vim, pref f <char> for set_selection
        case ch
        when ?0.getbyte(0)..?9.getbyte(0)
          $multiplier *= 10 ; $multiplier += (ch-48)
          #$log.debug " setting mult to #{$multiplier} in list "
          return 0
        end
        ret = process_key ch, self
        $multiplier = 0
        return :UNHANDLED if ret == :UNHANDLED
      end
    end
  end
  $multiplier = 0
end

#init_vars ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 450

def init_vars
  @to_print_borders ||= 1
  @repaint_required = true
  @toprow = @pcol = 0
  if @show_selector
    @row_selected_symbol ||= '>'
    @row_unselected_symbol ||= ' '
    @left_margin ||= @row_selected_symbol.length
  end
  @left_margin ||= 0
  @one_key_selection ||= true
  bind_key(?f){ ask_selection_for_char() }
  bind_key(?\M-v){ @one_key_selection = false }
  bind_key(?j){ next_row() }
  bind_key(?k){ previous_row() }
  bind_key(?G){ goto_bottom() }
  bind_key([?g,?g]){ goto_top() }
  bind_key(?/){ ask_search() }
  bind_key(?n){ find_more() }

end

#install_bindings ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 471

def install_bindings

end

#list(alist = nil) ⇒ Object

2010-01-04 15:30 BUFFERED HEIGHT



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# File 'lib/rbcurse/rlistbox.rb', line 494

def list alist=nil
  return @list if alist.nil?
  @list = RubyCurses::ListDataModel.new(alist)
  # added on 2009-01-13 23:19 since updates are not automatic now
  @list.bind(:LIST_DATA_EVENT) { |e| list_data_changed() }
  create_default_list_selection_model
end

#list_data_changed ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 884

def list_data_changed
  if row_count == 0 # added on 2009-02-02 17:13 so cursor not hanging on last row which could be empty
    init_vars
    @current_index = 0
    set_form_row
  end
  @repaint_required = true
end

#list_data_model(ldm = nil) ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 508

def list_data_model ldm=nil
  return @list if ldm.nil?
  raise "Expecting list_data_model" unless ldm.is_a? RubyCurses::ListDataModel
  @list = ldm
  # added on 2009-01-13 23:19 since updates are not automatic now
  @list.bind(:LIST_DATA_EVENT) { |e| list_data_changed() }
  create_default_list_selection_model
end

#list_variable(alist = nil) ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 501

def list_variable alist=nil
  return @list if alist.nil?
  @list = RubyCurses::ListDataModel.new(alist.value)
  # added on 2009-01-13 23:19 since updates are not automatic now
  @list.bind(:LIST_DATA_EVENT) { |e| list_data_changed() }
  create_default_list_selection_model
end

#mark_block ⇒ Object

end experimental selection of multiple rows via block specify a block start and then a block end usage: bind mark_selection to a key. It works as a toggle. C-c will cancel any selection that has begun. added on 2009-02-19 22:37



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# File 'lib/rbcurse/rlistbox.rb', line 918

def mark_block #selection
  if @inside_block
    @inside_block = false
    end_block #selection
  else
    @inside_block = true
    start_block #selection
  end
end

#OLDfind_next ⇒ Object

table find_next



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# File 'lib/rbcurse/rlistbox.rb', line 701

def OLDfind_next
    ix = @list.find_next
    regex = @last_regex 
    if ix.nil?
      alert("No more matching data for: #{regex}")
    else
      set_focus_on(ix) unless ix.nil?
    end
end

#OLDfind_prev ⇒ Object

listbox find_prev



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# File 'lib/rbcurse/rlistbox.rb', line 689

def OLDfind_prev
    ix = @list.find_prev
    regex = @last_regex 
    if ix.nil?
      alert("No previous matching data for: #{regex}")
    else
      @oldrow = @current_index
      @current_index = ix
      bounds_check
    end
end

#on_enter ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 710

def on_enter
  on_enter_row @current_index
  set_form_row # added 2009-01-11 23:41 
  #$log.debug " ONE ENTER LIST #{@current_index}, #{@form.row}"
  @repaint_required = true
  fire_handler :ENTER, self
end

#on_enter_row(arow) ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 717

def on_enter_row arow
  #$log.debug " Listbox #{self} ENTER_ROW with curr #{@current_index}. row: #{arow} H: #{@handler.keys}"
  #fire_handler :ENTER_ROW, arow
  fire_handler :ENTER_ROW, self
  @list.on_enter_row self
  edit_row_at arow
  @repaint_required = true
end

#on_leave_row(arow) ⇒ Object

set original value so we can cancel set row and col, set value and other things, color and bgcolor



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# File 'lib/rbcurse/rlistbox.rb', line 755

def on_leave_row arow
  #$log.debug " Listbox #{self} leave with (cr: #{@current_index}) #{arow}: list[row]:#{@list[arow]}"
  #$log.debug " Listbox #{self} leave with (cr: #{@current_index}) #{arow}: "
  #fire_handler :LEAVE_ROW, arow
  fire_handler :LEAVE_ROW, self
  editing_completed arow
end

#prepare_editor(editor, row) ⇒ Object

private



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# File 'lib/rbcurse/rlistbox.rb', line 734

def prepare_editor editor, row
  r,c = rowcol
  value =  @list[row] # .chomp
  value = value.dup rescue value # so we can cancel
  row = r + (row - @toprow) #  @form.row
  col = c+@left_margin # @form.col
  # unfortunately 2009-01-11 19:47 combo boxes editable allows changing value
  editor.prepare_editor self, row, col, value
  editor.component.curpos = 0 # reset it after search, if user scrols down
  #editor.component.graphic = @graphic #  2010-01-05 00:36 TRYING OUT BUFFERED
  ## override is required if the listbox uses a buffer
  if @should_create_buffer
    $log.debug " overriding editors comp with GRAPHIC #{@graphic} "
    editor.component.override_graphic(@graphic) #  2010-01-05 00:36 TRYING OUT BUFFERED
  end
  set_form_col 0 #@left_margin

  # set original value so we can cancel
  # set row and col,
  # set value and other things, color and bgcolor
end

#print_borders ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 525

def print_borders
  width = @width
  height = @height-1 # 2010-01-04 15:30 BUFFERED HEIGHT
  window = @graphic  # 2010-01-04 12:37 BUFFERED
  startcol = @col 
  startrow = @row 
  @color_pair = get_color($datacolor)
  #$log.debug "rlistb:  window.print_border #{startrow}, #{startcol} , #{height} , #{width} , @color_pair, @attr "
  window.print_border startrow, startcol, height, width, @color_pair, @attr
  print_title
end

#print_title ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 536

def print_title
  #printstring(@graphic, @row, @col+(@[email protected])/2, @title, @color_pair, @title_attrib) unless @title.nil?
  # 2010-01-04 15:53 BUFFERED
  # I notice that the old version would print a title that was longer than width,
  #+ but the new version won't print anything if it exceeds width.
  # TODO check title.length and truncate if exceeds width
  @graphic.printstring( @row, @col+(@width-@title.length)/2, @title, @color_pair, @title_attrib) unless @title.nil?
end

#repaint ⇒ Object

this method chops the data to length before giving it to the renderer, this can cause problems if the renderer does some processing. also, it pans the data horizontally giving the renderer a section of it.



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# File 'lib/rbcurse/rlistbox.rb', line 809

def repaint
  safe_create_buffer # 2010-01-04 12:36 BUFFERED moved here 2010-01-05 18:07 
  return unless @repaint_required
  # not sure where to put this, once for all or repeat 2010-02-17 23:07 RFED16
  my_win = @form ? @form.window : @target_window
  @graphic = my_win unless @graphic
  #$log.warn "neither form not target window given!!! TV paint 368" unless my_win
  raise " #{@name} neither form, nor target window given TV paint " unless my_win
  raise " #{@name} NO GRAPHIC set as yet                 TV paint " unless @graphic
  @win_left = my_win.left
  @win_top = my_win.top

  $log.debug " rlistbox repaint graphic #{@graphic} "
  print_borders if @to_print_borders == 1 # do this once only, unless everything changes
  rc = row_count
  maxlen = @maxlen ||= @width-2
  tm = list()
  tr = @toprow
  acolor = get_color $datacolor
  h = scrollatrow()
  r,c = rowcol
  0.upto(h) do |hh|
    crow = tr+hh
    if crow < rc
        focussed = @current_index == crow ? true : false 
        selected = is_row_selected crow
        content = tm[crow]   # 2009-01-17 18:37 chomp giving error in some cases says frozen
        if content.is_a? String
          content = content.dup
          content.chomp!
          content.gsub!(/\t/, '  ') # don't display tab
          content.gsub!(/[^[:print:]]/, '')  # don't display non print characters
          if !content.nil? 
            if content.length > maxlen # only show maxlen
              content = content[@pcol..@pcol+maxlen-1] 
            else
              content = content[@pcol..-1]
            end
          end
        elsif content.is_a? TrueClass or content.is_a? FalseClass
        else
          content = content.to_s
        end
        ## set the selector symbol if requested
        selection_symbol = ''
        if @show_selector
          if selected
            selection_symbol = @row_selected_symbol
          else
            selection_symbol =  @row_unselected_symbol
          end
          @graphic.printstring r+hh, c, selection_symbol, acolor,@attr
        end
        #renderer = get_default_cell_renderer_for_class content.class.to_s
        renderer = cell_renderer()
        #renderer.show_selector @show_selector
        #renderer.row_selected_symbol @row_selected_symbol
        #renderer.left_margin @left_margin
        #renderer.repaint @graphic, r+hh, c+(colix*11), content, focussed, selected
        ## added crow on 2009-02-06 23:03 
        # since data is being truncated and renderer may need index
        renderer.repaint @graphic, r+hh, c+@left_margin, crow, content, focussed, selected
    else
      # clear rows
      @graphic.printstring r+hh, c, " " * (@width-2), acolor,@attr
    end
  end
  if @cell_editing_allowed
    @cell_editor.component.repaint unless @cell_editor.nil? or @cell_editor.component.form.nil?
  end
  @table_changed = false
  @repaint_required = false
  @buffer_modified = true # required by form to call buffer_to_screen BUFFERED
  buffer_to_window # RFED16 2010-02-17 23:16 
end

#row_count ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 486

def row_count
  @list.length
end

#scrollatrow ⇒ Object

added 2009-01-07 13:05 so new scrollable can use



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# File 'lib/rbcurse/rlistbox.rb', line 490

def scrollatrow
  #@height - 2
  @height - 3 # 2010-01-04 15:30 BUFFERED HEIGHT
end

#select_default_values ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 517

def select_default_values
  return if @default_values.nil?
  @default_values.each do |val|
    row = @list.index val
    #do_select(row) unless row.nil?
    add_row_selection_interval row, row unless row.nil?
  end
end

#selection_mode(*val) ⇒ Object

getter and setter for selection_mode Must be called after creating model, so no duplicate. Since one may set in model directly.



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# File 'lib/rbcurse/rlistbox.rb', line 478

def selection_mode(*val)
  raise "ListSelectionModel not yet created!" if @list_selection_model.nil?
  if val.empty?
    @list_selection_model.selection_mode
  else
    @list_selection_model.selection_mode = val[0] 
  end
end

#set_buffering(params) ⇒ Object

2010-02-18 11:40 TRYING OUT - canceling editing if resized otherwise drawing errors can occur the earlier painted edited comp in yellow keeps showing until a key is pressed



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# File 'lib/rbcurse/rlistbox.rb', line 952

def set_buffering params
  super
  ## Ensuring that changes to top get reflect in editing comp
  #+ otherwise it raises an exception. Still the earlier cell_edit is being
  #+ printed where it was , until a key is moved
  # FIXME - do same for col
  if @cell_editor
    r,c = rowcol
    if @cell_editor.component.row < @row_offset + @buffer_params[:screen_top]
      @cell_editor.component.row = @row_offset +  @buffer_params[:screen_top]
    end
    # TODO next block to be tested by placing a listbox in right split of vertical
    if @cell_editor.component.col < @col_offset + @buffer_params[:screen_left]
      @cell_editor.component.col = @col_offset +  @buffer_params[:screen_left]
    end
    #editing_canceled @current_index if @cell_editing_allowed and @cell_editor
  end
  #set_form_row
  @repaint_required = true
end

#set_form_col(col1 = 0) ⇒ Object 



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# File 'lib/rbcurse/rlistbox.rb', line 892

def set_form_col col1=0
  # TODO BUFFERED use setrowcol @form.row, col
  # TODO BUFFERED use cols_panned
  @cols_panned ||= 0 # RFED16 2010-02-17 23:40 
  # editable listboxes will involve changing cursor and the form issue
  ## added win_col on 2010-01-04 23:28 for embedded forms BUFFERED TRYING OUT
  #[email protected]
  win_col = 0 # 2010-02-17 23:19 RFED16
  #col = win_col + @orig_col + @col_offset + @curpos + @form.cols_panned
  col2 = win_col + @col + @col_offset + col1 + @cols_panned + @left_margin
  $log.debug " set_form_col in rlistbox #{@col}+ left_margin #{@left_margin} ( #{col2} ) "
  #super col+@left_margin
  #@form.setrowcol @form.row, col2   # added 2009-12-29 18:50 BUFFERED
  setrowcol nil, col2 # 2010-02-17 23:19 RFED16
end

#start_block ⇒ Object

sets marker for start of block added on 2009-02-19 22:37



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# File 'lib/rbcurse/rlistbox.rb', line 934

def start_block #selection
  @first_index = @current_index
  @last_index = nil
end