class TaskJuggler::GanttTaskBar

The GanttTaskBar represents a normal task that is part of a GanttChart.

Public Class Methods

new(query, lineHeight, xStart, xEnd, y) click to toggle source

Create a GanttContainer object based on the following information: line is a reference to the GanttLine. xStart is the left edge of the task in chart coordinates. xEnd is the right edge.

# File lib/taskjuggler/reports/GanttTaskBar.rb, line 29
def initialize(query, lineHeight, xStart, xEnd, y)
  @query = query
  @lineHeight = lineHeight
  @start = xStart
  @end = xEnd
  @y = y
end

Public Instance Methods

addBlockedZones(router) click to toggle source

# File lib/taskjuggler/reports/GanttTaskBar.rb, line 59
def addBlockedZones(router)
  # Horizontal block for whole bar.
  router.addZone(@start, @y + (@lineHeight / 2) - @@size - 1,
                 @end - @start + 1, 2 * @@size + 3, true, false)
  # Block for arrowhead.
  router.addZone(@start - 9, @y + (@lineHeight / 2) - 7, 10, 15, true, true)
  # Vertical block for end cap
  router.addZone(@start - 2, @y, 5, @lineHeight,
                 false, true)
  router.addZone(@end - 2, @y, 5, @lineHeight, false, true)
end

endDepLineEnd() click to toggle source

Return the point [ x, y ] where task end dependency lines should end at.

# File lib/taskjuggler/reports/GanttTaskBar.rb, line 55
def endDepLineEnd
  [ @end - 1, @y + @lineHeight / 2 ]
end

endDepLineStart() click to toggle source

Return the point [ x, y ] where task end dependency lines should start from.

# File lib/taskjuggler/reports/GanttTaskBar.rb, line 50
def endDepLineStart
  [ @end + 1, @y + @lineHeight / 2 ]
end

startDepLineEnd() click to toggle source

Return the point [ x, y ] where task start dependency lines should end at.

# File lib/taskjuggler/reports/GanttTaskBar.rb, line 44
def startDepLineEnd
  [ @start - 1, @y + @lineHeight / 2 ]
end

startDepLineStart() click to toggle source

Return the point [ x, y ] where task start dependency lines should start from.

# File lib/taskjuggler/reports/GanttTaskBar.rb, line 39
def startDepLineStart
  [ @start + 1, @y + @lineHeight / 2 ]
end

to_html() click to toggle source

Convert the abstact representation of the GanttTaskBar into HTML elements.

# File lib/taskjuggler/reports/GanttTaskBar.rb, line 73
def to_html
  xStart = @start.to_i
  yCenter = (@lineHeight / 2).to_i
  width = @end.to_i - @start.to_i + 1

  html = []

  # Invisible trigger frame for tooltips.
  html << rectToHTML(xStart, 0, width, @lineHeight, 'tj_gantt_frame')

  # First we draw the task frame.
  html << rectToHTML(xStart, yCenter - @@size, width, 2 * @@size,
                     'taskbarframe')

  # The we draw the filling.
  html << rectToHTML(xStart + 1, yCenter - @@size + 1, width - 2,
                     2 * @@size - 2, 'taskbar')
  # And then the progress bar. If query is null we assume 50% completion.
  if @query
    @query.attributeId = 'complete'
    @query.process
    res = @query.result
    completion = res ? res / 100.0 : 0.0
  else
    completion = 0.5
  end
  html << rectToHTML(xStart + 1, yCenter - @@size / 2,
                     (width - 2) * completion, @@size, 'progressbar')
end