Class: RubyCurses::Label
Overview
the preferred way of printing text on screen, esp if you want to modify it at run time. Use display_length to ensure no spillage.
Constant Summary
Constants included from Io
Io::ERROR_COLOR_PAIR, Io::FOOTER_COLOR_PAIR, Io::LINEONE, Io::MAIN_WINDOW_COLOR_PAIR
Instance Attribute Summary
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
-
#bind_hotkey ⇒ Object
for a button, fire it when label invoked without changing focus for other widgets, attempt to change focus to that field.
- #getvalue ⇒ Object
-
#initialize(form, config = {}, &block) ⇒ Label
constructor
A new instance of Label.
- #label_for(field) ⇒ Object
-
#repaint ⇒ Object
XXX need to move wrapping etc up and done once.
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, #handle_key, #height, #height=, #hide, #init_vars, #is_double_buffered?, #modified?, #move, #on_enter, #on_leave, #override_graphic, #printstring, #process_key, #remove, #repaint_all, #repaint_required, #rowcol, #safe_create_buffer, #set_buffer_modified, #set_buffering, #set_form, #set_form_col, #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
Constructor Details
#initialize(form, config = {}, &block) ⇒ Label
Returns a new instance of Label.
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# File 'lib/rbcurse/rwidget.rb', line 2128 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) @text = config.fetch("text", "NOTFOUND") @editable = false @focusable = false super @justify ||= :left @name ||= @text @repaint_required = true end |
Instance Method Details
#bind_hotkey ⇒ Object
for a button, fire it when label invoked without changing focus for other widgets, attempt to change focus to that field
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# File 'lib/rbcurse/rwidget.rb', line 2154 def bind_hotkey if !@mnemonic.nil? ch = @mnemonic.downcase()[0].ord ## FIXME 1.9 DONE # meta key mch = ?\M-a.getbyte(0) + (ch - ?a.getbyte(0)) ## FIXME 1.9 if @label_for.is_a? RubyCurses::Button and @label_for.respond_to? :fire @form.bind_key(mch, @label_for) { |_form, _butt| _butt.fire } else $log.debug " bind_hotkey label for: #{@label_for}" @form.bind_key(mch, @label_for) { |_form, _field| _field.focus } end end end |
#getvalue ⇒ Object
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# File 'lib/rbcurse/rwidget.rb', line 2142 def getvalue @text_variable && @text_variable.value || @text end |
#label_for(field) ⇒ Object
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# File 'lib/rbcurse/rwidget.rb', line 2145 def label_for field @label_for = field #$log.debug " label for: #{@label_for}" bind_hotkey unless @form.nil? # GRRR! end |
#repaint ⇒ Object
XXX need to move wrapping etc up and done once.
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# File 'lib/rbcurse/rwidget.rb', line 2170 def repaint return unless @repaint_required r,c = rowcol value = getvalue_for_paint lablist = [] if @height && @height > 1 lablist = wrap_text(value, @display_length).split("\n") else # ensure we do not exceed if !@display_length.nil? if value.length > @display_length value = value[0..@display_length-1] end end lablist << value end len = @display_length || value.length acolor = get_color $datacolor #$log.debug "label :#{@text}, #{value}, #{r}, #{c} col= #{@color}, #{@bgcolor} acolor #{acolor} j:#{@justify} dlL: #{@display_length} " firstrow = r _height = @height || 1 str = @justify.to_sym == :right ? "%*s" : "%-*s" # added 2008-12-22 19:05 # loop added for labels that are wrapped. # TODO clear separately since value can change in status like labels $log.debug " RWID 1595 #{self.class} value: #{value} form: #{form} " @graphic = @form.window if @graphic.nil? ## HACK messagebox givig this in repaint, 423 not working ?? 0.upto(_height-1) { |i| @graphic.printstring r+i, c, " " * len , acolor,@attr } lablist.each_with_index do |_value, ix| break if ix >= _height if @justify.to_sym == :center padding = (@display_length - _value.length)/2 _value = " "*padding + _value + " "*padding # so its cleared if we change it midway end @graphic.printstring r, c, str % [len, _value], acolor,@attr r += 1 end if !@mnemonic.nil? ulindex = value.index(@mnemonic) || value.index(@mnemonic.swapcase) @graphic.mvchgat(y=firstrow, x=c+ulindex, max=1, Ncurses::A_BOLD|Ncurses::A_UNDERLINE, acolor, nil) end #@form.window.mvchgat(y=r, x=c, max=len, Ncurses::A_NORMAL, color, nil) @repaint_required = false end |