Class: TaskJuggler::GanttHeader

Inherits:
Object
  • Object
show all
Defined in:
lib/taskjuggler/reports/GanttHeader.rb

Overview

This class stores output format independent information to describe a GanttChart header. A Gantt chart header consists of 2 lines. The top line holds the large scale (e. g. the year or month and year) and the lower line holds the small scale (e. g. week or day).

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(columnDef, chart) ⇒ GanttHeader

Create a GanttHeader object and generate the scales for the header.



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# File 'lib/taskjuggler/reports/GanttHeader.rb', line 29

def initialize(columnDef, chart)
  @columnDef = columnDef
  @chart = chart

  @largeScale = []
  @smallScale = []

  # Positions where chart should be marked with vertical lines that match
  # the large scale.
  @gridLines = []

  # X coordinate of the "now" line. nil if "now" is off-chart.
  @nowLineX = nil

  # X coordinate of the custom "markdate" line with date specified by user.
  # nil if "markdate" is off-chart.
  @markdateLineX = nil

  # The x coordinates and width of the cells created by the small scale. The
  # values are stored as [ x, w ].
  @cellStartDates = []
  # The height of the header in pixels.
  @height = 39

  generate
end

Instance Attribute Details

#cellStartDates ⇒ Object (readonly)

Returns the value of attribute cellStartDates.



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# File 'lib/taskjuggler/reports/GanttHeader.rb', line 25

def cellStartDates
  @cellStartDates
end

#gridLines ⇒ Object (readonly)

Returns the value of attribute gridLines.



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# File 'lib/taskjuggler/reports/GanttHeader.rb', line 25

def gridLines
  @gridLines
end

#height ⇒ Object

Returns the value of attribute height.



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# File 'lib/taskjuggler/reports/GanttHeader.rb', line 26

def height
  @height
end

#markdateLineX ⇒ Object (readonly)

Returns the value of attribute markdateLineX.



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# File 'lib/taskjuggler/reports/GanttHeader.rb', line 25

def markdateLineX
  @markdateLineX
end

#nowLineX ⇒ Object (readonly)

Returns the value of attribute nowLineX.



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# File 'lib/taskjuggler/reports/GanttHeader.rb', line 25

def nowLineX
  @nowLineX
end

Instance Method Details

#to_html ⇒ Object

Convert the header into an HTML format.



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# File 'lib/taskjuggler/reports/GanttHeader.rb', line 57

def to_html
  div = XMLElement.new('div', 'class' => 'tabback',
                       'style' => "margin:0px; padding:0px; " +
                       "position:relative; " +
                       "width:#{@chart.width.to_i}px; " +
                       "height:#{@height.to_i}px; " +
                       "font-size:#{(@height / 4).to_i}px; ")
  @largeScale.each { |s| div << s.to_html }
  @smallScale.each { |s| div << s.to_html }
  div
end