Class: RubyCurses::CommandWindow::ListObject
- Defined in:
- lib/rbcurse/core/util/rcommandwindow.rb
Overview
displays a list Why did we create another list ? 2011-12-5
Instance Attribute Summary collapse
-
#current_index ⇒ Object
readonly
Returns the value of attribute current_index.
-
#cw ⇒ Object
readonly
Returns the value of attribute cw.
-
#focussed_attrib ⇒ Object
Returns the value of attribute focussed_attrib.
-
#focussed_symbol ⇒ Object
Returns the value of attribute focussed_symbol.
-
#list ⇒ Object
readonly
Returns the value of attribute list.
Instance Method Summary collapse
-
#bounds_check ⇒ Object
please set oldrow before calling this.
- #content(txt, config = {}) ⇒ Object
-
#display_content ⇒ Object
:nodoc:.
-
#display_interactive ⇒ Object
maybe we should just use a textview or label rather than try to do it all voer again !.
- #goto_bottom ⇒ Object (also: #goto_end)
- #goto_top ⇒ Object (also: #goto_start)
-
#handle_keys ⇒ Object
bounds_check.
-
#initialize(cw, _list, config = {}) ⇒ ListObject
constructor
A new instance of ListObject.
- #is_row_selected(row) ⇒ Object
- #next_row(num = (($multiplier.nil? or $multiplier == 0) ? 1 : $multiplier)) ⇒ Object (also: #down)
-
#OLDbounds_check ⇒ Object
:nodoc:.
-
#press(ch) ⇒ Object
listobject.
- #previous_row(num = (($multiplier.nil? or $multiplier == 0) ? 1 : $multiplier)) ⇒ Object (also: #up)
- #row_count ⇒ Object
- #rowcol ⇒ Object
- #scroll_backward ⇒ Object
- #scroll_forward ⇒ Object
- #scrollatrow ⇒ Object
- #set_form_row ⇒ Object
Constructor Details
#initialize(cw, _list, config = {}) ⇒ ListObject
Returns a new instance of ListObject.
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 321 def initialize cw, _list, config={} @cw = cw layout = @cw.layout @window = @cw.window @height = layout[:height] @width = layout[:width] content(_list) @height_adjust = config.fetch(:box, true) == :border ? 3 : 2 @selected_index = nil @current_index = 0 @row_offset = 1 @toprow = 0 $multiplier = 0 # till we can do something @focussed_symbol = '' @row_selected_symbol = '' #@show_selector = true if @show_selector @row_selected_symbol ||= '*' @row_unselected_symbol ||= ' ' @left_margin ||= @row_selected_symbol.length end #@show_selector = true #@row_selected_symbol = '*' #@row_unselected_symbol = ' ' end |
Instance Attribute Details
#current_index ⇒ Object (readonly)
Returns the value of attribute current_index.
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 318 def current_index @current_index end |
#cw ⇒ Object (readonly)
Returns the value of attribute cw.
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 316 def cw @cw end |
#focussed_attrib ⇒ Object
Returns the value of attribute focussed_attrib.
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 319 def focussed_attrib @focussed_attrib end |
#focussed_symbol ⇒ Object
Returns the value of attribute focussed_symbol.
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 320 def focussed_symbol @focussed_symbol end |
#list ⇒ Object (readonly)
Returns the value of attribute list.
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 317 def list @list end |
Instance Method Details
#bounds_check ⇒ Object
please set oldrow before calling this. Store current_index as oldrow before changing. NOTE
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 541 def bounds_check h = scrollatrow() rc = row_count @current_index = 0 if @current_index < 0 # not lt 0 @current_index = rc-1 if @current_index >= rc && rc>0 # not gt rowcount @toprow = rc-h-1 if rc > h && @toprow > rc - h - 1 # toprow shows full page if possible # curr has gone below table, move toprow forward if @current_index - @toprow > h @toprow = @current_index - h elsif @current_index < @toprow # curr has gone above table, move toprow up @toprow = @current_index end set_form_row end |
#content(txt, config = {}) ⇒ Object
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 347 def content txt, config={} @current_index = 0 # sometimes it gets left at a higher value than there are rows to show case txt when String txt = wrap_text(txt, @width-2).split("\n") when Array # okay end @list = txt end |
#display_content ⇒ Object
:nodoc:
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 381 def display_content #:nodoc: @graphic = @window @start ||= 0 @toprow ||= 0 @left_margin ||= @row_selected_symbol.length + @focussed_symbol.length #print_borders unless @suppress_borders # do this once only, unless everything changes #maxlen = @maxlen ||= @width-2 tm = @list rc = tm.size @col_offset = 1 #@longest_line = @width if rc > 0 # just added in case no data passed #tr = @start #@toprow tr = @toprow acolor = get_color $datacolor #h = @height - 3 #2 h = @height - @height_adjust r,c = @row_offset, @col_offset 0.upto(h) do |hh| crow = tr+hh if crow < rc focussed = @current_index == crow # row focussed ? selected = is_row_selected crow content = tm[crow] # 2009-01-17 18:37 chomp giving error in some cases says frozen # by now it has to be a String ## 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 if focussed if @focussed_symbol @graphic.printstring r+hh, c, @focussed_symbol, acolor,@attr end @graphic.printstring r+hh, c+@left_margin, content, acolor, @focussed_attrib || 'reverse' else @graphic.printstring r+hh, c+@left_margin, content, acolor,@attr end #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 end # rc == 0 set_form_row end |
#display_interactive ⇒ Object
maybe we should just use a textview or label rather than try to do it all voer again !
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 359 def display_interactive display_content while !@stop @window.wrefresh # FFI 2011-09-12 # FIXME only clear and redisplay if change has happened (repaint_require) handle_keys { |ch| @cw.clear; display_content } end return @list[@current_index] end |
#goto_bottom ⇒ Object Also known as: goto_end
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 501 def goto_bottom @oldrow = @current_index rc = row_count @current_index = rc -1 bounds_check end |
#goto_top ⇒ Object Also known as: goto_start
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 508 def goto_top @oldrow = @current_index @current_index = 0 bounds_check end |
#handle_keys ⇒ Object
bounds_check
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 585 def handle_keys #:nodoc: begin while((ch = @window.getchar()) != 999 ) case ch when -1 next else press ch break if @stop yield ch if block_given? end end ensure @cw.destroy end return @current_index end |
#is_row_selected(row) ⇒ Object
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 368 def is_row_selected row @selected_index == row end |
#next_row(num = (($multiplier.nil? or $multiplier == 0) ? 1 : $multiplier)) ⇒ Object Also known as: down
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 492 def next_row num=(($multiplier.nil? or $multiplier == 0) ? 1 : $multiplier) rc = row_count return false if @current_index == rc-1 @oldrow = @current_index @current_index += 1*num if @current_index < rc bounds_check $multiplier = 0 end |
#OLDbounds_check ⇒ Object
:nodoc:
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 577 def OLDbounds_check #:nodoc: @start = 0 if @start < 0 row_offset = 1 last = (@list.length)-(@height-row_offset-1) if @start > last @start = last end end |
#press(ch) ⇒ Object
listobject
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 437 def press ch # list TODO copy from rbasiclist ch = ch.getbyte(0) if ch.class==String ## 1.9 $log.debug " XXX press #{ch} " if $log.debug? case ch when -1 return when KEY_F1, 27, ?\C-q.getbyte(0) @stop = true return when KEY_ENTER, 10, 13 #$log.debug "popup ENTER : #{@selected_index} " #$log.debug "popup ENTER : #{field.name}" if !field.nil? @stop = true return when 32, ?\C-d.getbyte(0) scroll_forward #@start += @height-1 #bounds_check when KEY_UP, ?k.getbyte(0) previous_row #@start -= 1 #@current_index -= 1 #@current_index = 0 if @current_index < 0 #@start = 0 if @start < 0 when KEY_DOWN, ?j.getbyte(0) next_row #@start += 1 #@current_index += 1 #bounds_check when ?\C-b.getbyte(0) scroll_backward #@start -= @height-1 #@start = 0 if @start < 0 when 0, ?g.getbyte(0) goto_top when ?G.getbyte(0) goto_bottom end #@form.repaint Ncurses::Panel.update_panels(); Ncurses.doupdate(); @window.wrefresh end |
#previous_row(num = (($multiplier.nil? or $multiplier == 0) ? 1 : $multiplier)) ⇒ Object Also known as: up
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 481 def previous_row num=(($multiplier.nil? or $multiplier == 0) ? 1 : $multiplier) #return :UNHANDLED if @current_index == 0 # EVIL return false if @current_index == 0 @oldrow = @current_index num.times { @current_index -= 1 if @current_index > 0 } bounds_check $multiplier = 0 end |
#row_count ⇒ Object
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 375 def row_count @list.size end |
#rowcol ⇒ Object
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 378 def rowcol return @row_offset, @col_offset end |
#scroll_backward ⇒ Object
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 514 def scroll_backward @oldrow = @current_index h = scrollatrow() m = $multiplier == 0? 1 : $multiplier @current_index -= h * m bounds_check $multiplier = 0 end |
#scroll_forward ⇒ Object
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 522 def scroll_forward @oldrow = @current_index h = scrollatrow() rc = row_count m = $multiplier == 0? 1 : $multiplier # more rows than box if h * m < rc @toprow += h+1 #if @current_index+h < rc @current_index = @toprow else # fewer rows than box @current_index = rc -1 end #@current_index += h+1 #if @current_index+h < rc bounds_check end |
#scrollatrow ⇒ Object
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 372 def scrollatrow @height - 3 end |
#set_form_row ⇒ Object
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# File 'lib/rbcurse/core/util/rcommandwindow.rb', line 559 def set_form_row r,c = rowcol # when the toprow is set externally then cursor can be mispositioned since # bounds_check has not been called if @current_index < @toprow # cursor is outside table @current_index = @toprow # ??? only if toprow 2010-10-19 12:56 end row = r + (@current_index-@toprow) # row should not be < r or greater than r+height TODO FIXME #setrowcol row, nil @window.wmove row, c @window.wrefresh # FFI added to keep cursor display in synch with selection end |