Module: QDA::GUI::FindableText

Included in:
CompositeText, DocTextViewer
Defined in:
lib/weft/wxgui/controls/textcontrols.rb

Defined Under Namespace

Classes: UsefulFindReplaceData

Instance Method Summary collapse

Instance Method Details

#get_subject ⇒ Object 



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# File 'lib/weft/wxgui/controls/textcontrols.rb', line 199

def get_subject()
  if @f_data.up?
    subject = get_range( 0, insertion_point )
  else
    subject = get_range( insertion_point, last_position )
  end
  if @f_data.no_matchcase?
    subject.downcase!
  end
  return subject
end

#initialize(*args) ⇒ Object 



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# File 'lib/weft/wxgui/controls/textcontrols.rb', line 175

def initialize(*args)
  super(*args)
  @f_dialog = nil
  @f_data   = UsefulFindReplaceData.new(1)
  @hooked = nil
end

#on_find(evt) ⇒ Object 



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# File 'lib/weft/wxgui/controls/textcontrols.rb', line 219

def on_find(evt)
  # query? bug in WxRuby 0.6.0 FindReplaceData#get_flags - 
  # doesn't get automatically updated as documented
  @f_data.flags = evt.flags

  # get the string we're searching for, bail out if nothing there
  sought  = @f_data.find_string()
  return if sought.empty?
  
  sought.downcase! if @f_data.no_matchcase?

  # get part of our contents in the right case ready to 
  return unless subject = get_subject()
  adjustment = 0
  # hack to avoid recapturing when searching down
  if searching_down? and string_selection == sought
    adjustment = sought.length
    subject = subject[adjustment .. -1]
  end
  
  point = searching_down? ? subject.index( sought ) :
                            subject.rindex( sought ) 
  if point
    if searching_up?
      self.insertion_point = true_point( point )
    else
      self.insertion_point = true_insertion_point + point + adjustment
    end
    
    sel_start = true_index_to_pos( insertion_point )
    sel_end   = true_index_to_pos( insertion_point + sought.length )
    self.set_selection( sel_end, sel_start )
  end
end

#on_find_close(evt) ⇒ Object 



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# File 'lib/weft/wxgui/controls/textcontrols.rb', line 254

def on_find_close(evt)
  if @f_dialog
    @f_dialog.destroy()
    @f_dialog = nil
  end
  self.set_focus()
  evt.skip()
end

#searching_down? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/weft/wxgui/controls/textcontrols.rb', line 211

def searching_down?
  @f_data.down?
end

#searching_up? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/weft/wxgui/controls/textcontrols.rb', line 215

def searching_up?
  @f_data.up?
end

#start_find(parent_win) ⇒ Object 



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# File 'lib/weft/wxgui/controls/textcontrols.rb', line 182

def start_find(parent_win)
  if not @f_dialog
    @f_dialog = Wx::FindReplaceDialog.new( parent_win, @f_data,
                                           "Find text", Wx::FR_NOWHOLEWORD )
  end
  if not @hooked
    # TextCtrl doesn't receive evt_find, so route through parent
    parent_win.evt_find(-1) { | e | on_find(e) }
    parent_win.evt_find_next(-1) { | e | on_find(e) }
    parent_win.evt_find_close(-1) { | e | on_find_close(e) }
    # ensure dialog is destroyed when parent is closed
    parent_win.evt_close() { | e | on_find_close(e) }
    @hooked = parent_win
  end
  @f_dialog.show()
end