class Element FIELD_SEP = ':' PROPOINT_SEP = ';' XY_SEP = ',' EPSILON = 0.0000001 INVALID = -1 NO_PROPORTION = -1 MAX_PROPOINTS = 3 # One proportional point per chart type attr_accessor :value, :valueColor, :valuePattern, :label, :labelColor def initialize( value = INVALID, valueColor = TQt::gray, valuePattern = TQt::SolidPattern, label = nil, labelColor = TQt::black ) init( value, valueColor, valuePattern, label, labelColor ) @propoints = [] for i in 0...MAX_PROPOINTS * 2 @propoints[i] = NO_PROPORTION end end def isValid() return @value > EPSILON end def init( value, valueColor, valuePattern, label, labelColor ) @value = value @valueColor = valueColor if TQt::SolidPattern >= valuePattern || TQt::DiagCrossPattern <= valuePattern valuePattern = TQt::SolidPattern end @valuePattern = valuePattern @label = label @labelColor = labelColor end def set( value = INVALID, valueColor = TQt::gray, valuePattern = TQt::SolidPattern, label = nil, labelColor = TQt::black ) init( value, valueColor, valuePattern, label, labelColor ) end def setValuePattern( valuePattern ) if valuePattern < TQt::SolidPattern.to_i || valuePattern > TQt::DiagCrossPattern.to_i valuePattern = TQt::SolidPattern end @valuePattern = valuePattern end def proX( index ) return @propoints[2 * index] end def proY( index ) return @propoints[(2 * index) + 1] end def setProX( index, value ) @propoints[2 * index] = value end def setProY( index, value ) @propoints[(2 * index) + 1] = value end end class TQt::TextStream alias op_write << def <<( item ) if !item.kind_of? Element return op_write(item) end element = item self << element.value() << Element::FIELD_SEP << element.valueColor().name() << Element::FIELD_SEP << element.valuePattern().to_i << Element::FIELD_SEP << element.labelColor().name() << Element::FIELD_SEP for i in 0...Element::MAX_PROPOINTS self << element.proX( i ) << Element::XY_SEP << element.proY( i ) self << ( i == Element::MAX_PROPOINTS - 1 ? Element::FIELD_SEP : Element::PROPOINT_SEP ) end self << element.label() << "\n" return self end alias op_read >> def >>( item ) if !item.kind_of? Element return op_read(item) end element = item data = readLine() element.value = Element::INVALID errors = 0 fields = data.split( Element::FIELD_SEP ) if fields.length() >= 4 value = fields[0].to_f if value.nil? errors += 1 end valueColor = TQt::Color.new( fields[1] ) if !valueColor.isValid() errors += 1 end valuePattern = fields[2].to_i if valuePattern.nil? errors += 1 end labelColor = TQt::Color.new( fields[3] ) if !labelColor.isValid() errors += 1 end propoints = fields[4].split( Element::PROPOINT_SEP ) label = data.split(Element::FIELD_SEP)[5] if errors == 0 element.set( value, valueColor, valuePattern, label, labelColor ) i = 0 propoints.each do |point| errors = 0 xy = point.split( Element::XY_SEP ) x = xy[0].to_f if x.nil? || x <= 0.0 || x >= 1.0 errors += 1 end y = xy[1].to_f if y.nil? || y <= 0.0 || y >= 1.0 errors += 1 end if errors > 0 x = y = Element::NO_PROPORTION end element.setProX( i, x ) element.setProY( i, y ) i += 1 end end end return self end end