Module TaskJuggler::HTMLGraphics
In: lib/taskjuggler/reports/HTMLGraphics.rb

This module provides some functions to render simple graphical objects like filled rectangles and lines as HTML elements.

Methods

arrowHeadToHTML   diamondToHTML   jagToHTML   lineToHTML   rectToHTML  

Public Instance methods

arrowHeadToHTML(x, y)

[Source]

# File lib/taskjuggler/reports/HTMLGraphics.rb, line 72
    def arrowHeadToHTML(x, y)
      XMLElement.new('div', 'class' => 'tj_arrow_head',
                            'style' => "left:#{x.to_i - 5}px; " +
                                       "top:#{y.to_i - 5}px;")
    end
diamondToHTML(x, y)

[Source]

# File lib/taskjuggler/reports/HTMLGraphics.rb, line 61
    def diamondToHTML(x, y)
      html = []
      html << XMLElement.new('div', 'class' => 'tj_diamond_top',
                             'style' => "left:#{x.to_i - 6}px; " +
                                        "top:#{y.to_i - 7}px;")
      html << XMLElement.new('div', 'class' => 'tj_diamond_bottom',
                             'style' => "left:#{x.to_i - 6}px; " +
                                        "top:#{y.to_i}px;")
      html
    end
jagToHTML(x, y)

[Source]

# File lib/taskjuggler/reports/HTMLGraphics.rb, line 55
    def jagToHTML(x, y)
      XMLElement.new('div', 'class' => 'tj_gantt_jag',
                            'style' => "left:#{x.to_i - 5}px; " +
                                       "top:#{y.to_i}px;")
    end
lineToHTML(xs, ys, xe, ye, category)

Render a line as HTML element. We use ‘div‘s with a single pixel width or height for this purpose. As a consequence of this, we can only generate horizontal or vertical lines. Diagonal lines are not supported. xs and ys are the start coordinates, xe and ye are the end coordinates. category determines the color.

[Source]

# File lib/taskjuggler/reports/HTMLGraphics.rb, line 25
    def lineToHTML(xs, ys, xe, ye, category)
      xs = xs.to_i
      ys = ys.to_i
      xe = xe.to_i
      ye = ye.to_i
      if ys == ye
        # Horizontal line
        xs, xe = xe, xs if xe < xs
        style = "left:#{xs}px; top:#{ys}px; " +
                "width:#{xe - xs + 1}px; height:1px;"
      elsif xs == xe
        # Vertical line
        ys, ye = ye, ys if ye < ys
        style = "left:#{xs}px; top:#{ys}px; " +
                "width:1px; height:#{ye - ys + 1}px;"
      else
        raise "Can't draw diagonal line #{xs}/#{ys} to #{xe}/#{ye}!"
      end
      XMLElement.new('div', 'class' => category, 'style' => style)
    end
rectToHTML(x, y, w, h, category)

Draw a filled rectable at position x and y with the dimension w and h into another HTML element. The color is determined by the class category.

[Source]

# File lib/taskjuggler/reports/HTMLGraphics.rb, line 49
    def rectToHTML(x, y, w, h, category)
      style = "left:#{x.to_i}px; top:#{y.to_i}px; " +
              "width:#{w.to_i}px; height:#{h.to_i}px;"
      XMLElement.new('div', 'class' => category, 'style' => style)
    end

[Validate]