Class: Sol::Bootstrap

Inherits:
Object
  • Object
show all
Defined in:
lib/webview/bootstrap.rb

Overview

Instance Attribute Summary (collapse)

Instance Method Summary (collapse)

Constructor Details

- (Bootstrap) initialize 



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# File 'lib/webview/bootstrap.rb', line 44

def initialize
  @specified = false  # scene has not yet been defined
  @root_grid = MDArray.string([1])  # base grid with one row
end

Instance Attribute Details

- (Object) root_grid (readonly)

Returns the value of attribute root_grid



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# File 'lib/webview/bootstrap.rb', line 37

def root_grid
  @root_grid
end

- (Object) specified (readonly)

Returns the value of attribute specified



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# File 'lib/webview/bootstrap.rb', line 38

def specified
  @specified
end

Instance Method Details

- (Object) []=(val) 



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# File 'lib/webview/bootstrap.rb', line 61

def []=(val)
  # when a grid is assigned to the root_grid, then the scene has been specified
  @specified = true
  @root_grid[0] = val
end

- (Object) add_grid(grid) 



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# File 'lib/webview/bootstrap.rb', line 223

def add_grid(grid)
  @specified = true
  @root_grid[0] = grid
end

- (Object) bootstrap 



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# File 'lib/webview/bootstrap.rb', line 125

def bootstrap
  
  container = "// Add new Bootstrap Container"
  # container = "container = d3.select(\"body\").append(\"div\")"
  container = "container = d3.select(\"last\").insert(\"div\")"
  container << ".attr(\"class\", \"container\")"
  container << ".attr(\"style\", \"font: 12px sans-serif;\");\n\n"

  # Add a title row
  container << "// Add a row for the dashboard title\n"
  container << "var title = container.append(\"div\").attr(\"class\", \"row\");\n"
  container << "title.attr(\"class\", \"col-sm-12\")"
  container << ".attr(\"id\", \"title\")"
  container << ".attr(\"align\", \"center\");\n"
  container << @title if @title

  container << "var main = container.append(\"div\").attr(\"class\", \"row\");\n"
  container << "main.attr(\"class\", \"col-sm-12\")"

  grid = @root_grid[0]
  if (grid.is_a? StringMDArray)
    raise "Grid should have rank of at most 2" if grid.get_rank > 2
    container << "\n " << traverse(grid, 12, "main")
  elsif
    p grid
    raise "Something wrong happened! Sorry."
  end

  container

end

- (Object) create_grid(charts_num, names, cols = 2)

Creates a grid of the appropriate size for storing the specified number of charts and name them. The grid will have cols columns and as many rows as necessary to store all charts. The columns width will be as large as possible.



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# File 'lib/webview/bootstrap.rb', line 87

def create_grid(charts_num, names, cols = 2)

  raise "Then number of columns has to be an integer and not #{cols}" if 
    !cols.is_a? Integer

  # Not used yet... 
  # columns_width = (@max_width / cols).floor
  rows = 0

  if (charts_num <= cols)
    rows = 1
    grid = new_grid([charts_num, rows])
  else
    rows = (charts_num.to_f / cols).ceil
    grid = new_grid([rows, cols])
  end
  
  grid.each_with_counter do |cel, count|
    i = rows * count[0] + count[1]
    grid[*count] = (i < names.size)? names[i] : "__bootstrap_empty__"
  end
  
  add_grid(grid)

end

- (Object) new_grid(shape)

String MDArray is actually an Object MDArray, so, any object can be added to it



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# File 'lib/webview/bootstrap.rb', line 71

def new_grid(shape)

  if (shape.size != 2)
    raise "Grid specification invalid - rank must be 2 and not: #{shape.size}"
  end

  MDArray.string(shape)

end

- (Boolean) specified?

Returns:

  • (Boolean) 


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# File 'lib/webview/bootstrap.rb', line 53

def specified?
  return @specified
end

- (Object) title=(title) 



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# File 'lib/webview/bootstrap.rb', line 117

def title=(title)
  @title = "title.append(\"h4\").text(\"#{title}\");"
end

- (Object) traverse(grid, size, parent = "container", g = 1) 



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# File 'lib/webview/bootstrap.rb', line 161

def traverse(grid, size, parent = "container", g = 1)

  rank = grid.get_rank
  shape = grid.get_shape
  span = size/shape[1]

  if (span < 1 || rank != 2)
    raise "Grid specification invalid with rank: #{rank} and span #{span}"
  end
  
  row = -1
  col = -1
  # cel = "g#{g}_#{row}"
  # container = "var #{cel} = #{parent}.append(\"div\").attr(\"class\", \"row\");\n"
  # parent = cel
  container = String.new
  push = String.new
  row_spec = String.new
  cel = String.new

  grid.each_with_counter do |val, counter|
    # new row
    if (counter[0] > row)
      col = -1    # reset the column counter
      row = counter[0]
      row_spec = "g#{g}_#{row}"
      container << "var #{row_spec} = #{parent}.append(\"div\").attr(\"class\", \"row\");\n"
      # cel = row_spec
      # parent = cel
    end
    # new column?
    # if (shape[1] > 1 && counter[1] > col)
    if (counter[1] > col)
      col = counter[1]
      cel = "#{row_spec}_#{col}"
      container << "var #{cel} = #{row_spec}.append(\"div\").attr(\"class\", \"col-sm-#{span}\");\n"
    end

    if (val.is_a? String)
      # leaf cel
      container << "#{cel}.attr(\"id\", \"#{val}Chart\");\n "
    elsif (val.is_a? StringMDArray)
      # new grid
      # p "calling traverse with #{g + 1}"
      push << traverse(val, span, cel, g + 1)
    end
  end

  container + push

end