Class: Watobo::Gui::HexViewer

Inherits:
FXHorizontalFrame
  • Object
show all
Defined in:
lib/watobo/gui/hex_viewer.rb

Instance Method Summary collapse

Constructor Details

#initialize(owner) ⇒ HexViewer

Returns a new instance of HexViewer.



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

def initialize(owner)
  super(owner, :opts => LAYOUT_FILL_X|LAYOUT_FILL_Y, :padding => 0)
  sunken = FXVerticalFrame.new(self, :opts => LAYOUT_FILL_X|LAYOUT_FILL_Y|FRAME_SUNKEN|FRAME_THICK, :padding => 0)
  @hexTable = FXTable.new(sunken, :opts => FRAME_SUNKEN|TABLE_COL_SIZABLE|TABLE_ROW_SIZABLE|LAYOUT_FILL_X|LAYOUT_FILL_Y|TABLE_READONLY|LAYOUT_SIDE_TOP, :padding => 2)
  f = FXFont.new(getApp(), "courier", 8,  FONTSLANT_REGULAR, FONTENCODING_DEFAULT)
  @hexTable.font = f
  @hexTable.columnHeaderFont = f
  @hexTable.rowHeaderFont = f
  
  
end

Instance Method Details

#normalizeText(text) ⇒ Object 



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# File 'lib/watobo/gui/hex_viewer.rb', line 5

def normalizeText(text)
  dummy = []
  begin
    text.headers.each do |h|
      dummy.push h.strip.unpack("C*").pack("C*") + "\r\n"
    end
    dummy.push "\r\n"
    dummy.push text.body.unpack("C*").pack("C*")
    dummy = dummy.join
  rescue => bang
    dummy = text
  end
  return dummy
end

#setText(tobject) ⇒ Object 



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# File 'lib/watobo/gui/hex_viewer.rb', line 20

def setText(tobject)
  raw_text = tobject
  
  if tobject.respond_to? :has_body?
    raw_text = ""
    #raw_text << tobject.body.to_s unless tobject.body.nil? 
    raw_text << tobject.to_s
  end
  
  
  initTable()
  
  if raw_text and not raw_text.empty? then
    raw_text = normalizeText(raw_text)
    pos = 1
    col = 0
    
    row = @hexTable.getNumRows
    
    @hexTable.appendRows(1)
    @hexTable.rowHeader.setItemJustify(row, FXTableItem::LEFT)    
    @hexTable.setRowText(row, "%0.4X" % row.to_s)
    
    while pos <= raw_text.length
      chunk = raw_text[pos-1].unpack("H2")[0]
      @hexTable.setItemText(row, col, chunk)
      @hexTable.getItem(row, col).justify = FXTableItem::LEFT
      
      if pos % 16 == 0 then
        chunk = raw_text[row*16..pos-1]
        
       
       # Filter bad utf-8 chars
        printable = chunk.unpack("C*").pack("C*").gsub(/[^[:print:]]/,'.')
        @hexTable.setItemText(row, 16, printable) if !chunk.nil?
        @hexTable.getItem(row, 16).justify = FXTableItem::LEFT
        
        row = @hexTable.getNumRows
        @hexTable.appendRows(1)
        
        # puts "=#{pos}/#{row}"
        @hexTable.rowHeader.setItemJustify(row, FXTableItem::LEFT)        
        @hexTable.setRowText(row, "%0.4X" % (row*16).to_s)
        
        col = -1
      end
      pos += 1
      col += 1 
    end
    chunk = raw_text[row*16..pos-1]
    @hexTable.setItemText(row, 16, chunk.gsub(/[^[:print:]]/,'.')) if !chunk.nil?
        @hexTable.getItem(row, 16).justify = FXTableItem::LEFT
    
  end
  
  0.upto(16) do |i|
    @hexTable.fitColumnsToContents(i)
  end
end