Class: Watobo::Gui::TextView2

Inherits:
FXText
  • Object
show all
Defined in:
lib/watobo/gui/text_viewer.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(owner, opts) ⇒ TextView2

Returns a new instance of TextView2.



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# File 'lib/watobo/gui/text_viewer.rb', line 80

def initialize(owner, opts)

  @pattern_matches = []
  @raw_text = ""
  @match_index = 0
  @event_dispatcher_listeners = Hash.new
  @parse_code = true
  @code_pattern = "%%"
  @code_style = 1

  super(owner, opts)

  # Construct some hilite styles
  hs_green = FXHiliteStyle.new
  hs_green.normalForeColor = FXRGBA(255,255,255,255) #FXColor::Red
  hs_green.normalBackColor = FXRGBA(0,255,0,1)   # FXColor::White
  hs_green.style = FXText::STYLE_BOLD

  hs_red = FXHiliteStyle.new
  hs_red.normalForeColor = FXRGBA(255,255,255,255) #FXColor::Red
  hs_red.normalBackColor = FXRGBA(255,0,0,1)   # FXColor::White
  hs_red.style = FXText::STYLE_BOLD

  # Enable the style buffer for this text widget
  self.styled = true
  # Set the styles
  self.hiliteStyles = [ hs_green, hs_red]

  self.editable = false

  self.textStyle |= TEXT_WORDWRAP
  
  self.connect(SEL_CHANGED){
    if @parse_code
      highlight_code()
    end
  }

end

Instance Attribute Details

#max_len ⇒ Object

Returns the value of attribute max_len.



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# File 'lib/watobo/gui/text_viewer.rb', line 6

def max_len
  @max_len
end

Instance Method Details

#applyFilter(pattern, prefs = {}) ⇒ Object

applies a specific filter (string or regex).

It returns an array containing [pos, len] pairs of each match



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# File 'lib/watobo/gui/text_viewer.rb', line 129

def applyFilter(pattern, prefs={})
  cprefs = { :highlight => true,
    :style_index => 2}
  cprefs.update(prefs) if prefs.is_a? Hash

  dummy = self.to_s
  #remove previous highlighting
  self.killSelection()
  self.setText(dummy)
  @match_index = 0
  @pattern_matches = matchPattern(pattern)
  if cprefs[:highlight] == true
    # puts "* found pattern #{pattern} #{@pattern_matches.length} times"
    @pattern_matches.each do |start, len|
      begin
        self.changeStyle(start, len, cprefs[:style_index])
      rescue => bang
        puts "outch"
        puts bang
      end
    end
  end

  # now re-highlight input and set cursor to last pos

  return @pattern_matches
end

#clearEvents(event) ⇒ Object 



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# File 'lib/watobo/gui/text_viewer.rb', line 13

def clearEvents(event)
  @event_dispatcher_listener[event].clear
end

#highlight_code(pattern = nil) ⇒ Object 



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# File 'lib/watobo/gui/text_viewer.rb', line 43

def highlight_code(pattern=nil)
  # remove all styles
  self.changeStyle(0, self.length-1, 0)
  mark = pattern.nil? ? @code_pattern : pattern
  sindex = nil
  pos = 0
  match = []
  text = self.to_s
  mark = "%%"

  loop do
    sindex = text.index(mark, pos)
    nli = text.index("\n", pos)
    break if sindex.nil?
    puts pos
    
    unless nli.nil?
      match = [] if nli < sindex
    end
    
    match << sindex
    
    if match.length == 2          
      start = match[0]
      len = match[1] - match[0] + mark.length
      
      self.changeStyle(start, len, @code_style)
      match = []
      pos = sindex + mark.length - 1
    else
      pos = sindex + mark.length            
    end
    
    break if pos >= self.length-1 + mark.length
  end
end

#matchIndex ⇒ Object 



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# File 'lib/watobo/gui/text_viewer.rb', line 17

def matchIndex()
  @match_index
end

#numMatches ⇒ Object 



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# File 'lib/watobo/gui/text_viewer.rb', line 21

def numMatches()
  @pattern_matches.length
end

#reset_text ⇒ Object

reset() this function removes all previous selections and highlightings



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# File 'lib/watobo/gui/text_viewer.rb', line 159

def reset_text()
  self.setText(self.to_s)
end

#setFont(font_type = nil, size = nil) ⇒ Object 



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# File 'lib/watobo/gui/text_viewer.rb', line 35

def setFont(font_type=nil, size=nil)
  new_size = size.nil? ? GUI_REGULAR_FONT_SIZE : size
  new_font_type = font_type.nil? ? "helvetica" : font_type
  new_font = FXFont.new(getApp(), new_font_type, new_size)
  new_font.create
  self.font = new_font
end

#setPrintable(text, prefs = {}) ⇒ Object 



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# File 'lib/watobo/gui/text_viewer.rb', line 120

def setPrintable(text, prefs={})
  @raw_text = text
  self.setText(normalizeText(@raw_text))
end

#showMatch(match_index = 0, prefs = {}) ⇒ Object

showMatch(index=0) this function makes a specific match visible in the text field. The default index value is 0. The function returns the index of the current match index.



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# File 'lib/watobo/gui/text_viewer.rb', line 167

def showMatch(match_index=0, prefs={})
  cprefs = { :select_match => false }
    
  cprefs.update prefs
  
  return @match_index if @pattern_matches.empty?
  return @match_index if match_index > ( @pattern_matches.length - 1 )
  return @match_index if match_index < 0
  
  if @pattern_matches[match_index] then
    @match_index = match_index
    pos = @pattern_matches[match_index][0]
    len =@pattern_matches[match_index][1]

    self.setCenterLine(pos)

    #   @textbox.makePositionVisible(pos + len)
    self.makePositionVisible(self.lineEnd(pos))
    self.makePositionVisible(pos)

    self.setCursorPos(pos)

    self.killSelection()
    self.setSelection(pos, len) if cprefs[:select_match] == true
  end
  return @match_index
end

#showNextMatch ⇒ Object 



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# File 'lib/watobo/gui/text_viewer.rb', line 25

def showNextMatch()
 # puts "* showNextMatch -> #{@match_index+1}"
  showMatch(@match_index + 1)
end

#showPrevMatch ⇒ Object 



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# File 'lib/watobo/gui/text_viewer.rb', line 30

def showPrevMatch()
 # puts "* showPrevMatch -> #{@match_index-1}"
  showMatch(@match_index - 1)
end

#subscribe(event, &callback) ⇒ Object 



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# File 'lib/watobo/gui/text_viewer.rb', line 9

def subscribe(event, &callback)
  (@event_dispatcher_listeners[event] ||= []) << callback
end