refactoring. modularised the page elements into models and now rendering text boxes as a heirarchy.

lib/open_project/pdf_export/taskboard_card/card_element.rb

@@ -0,0 +1,43 @@
+module OpenProject::PdfExport::TaskboardCard
+  class CardElement
+    def initialize(pdf, orientation, rows_config, work_package)
+      @pdf = pdf
+      @orientation = orientation
+      @rows_config = rows_config
+      @work_package = work_package
+      @row_elements = []
+
+      # Initialize row elements
+      row_y_offset = 0
+      rows_config["rows"].each do |key, value|
+        # TODO: Intelligently configure the orientation of row elements
+        row_orientation = {
+          y_offset: @orientation[:height] - row_y_offset,
+          x_offset: 0,
+          width: 400, # TODO: Calculate
+          height: 40 # TODO: Calculate
+        }
+        row_y_offset += 40 # TODO: Calculate from text size, lines, priority, whatever
+
+        @row_elements << RowElement.new(@pdf, row_orientation, value["columns"], @work_package)
+      end
+    end
+
+    def draw
+      top_left = [@orientation[:x_offset], @orientation[:y_offset]]
+      bounds = @orientation.slice(:width, :height)
+
+      @pdf.bounding_box(top_left, bounds) do
+        @pdf.stroke_color 'FF0000'
+
+        # Draw rows
+        @row_elements.each do |row|
+          row.draw
+        end
+
+        @pdf.stroke_bounds
+      end
+
+    end
+  end
+end

lib/open_project/pdf_export/taskboard_card/column_element.rb

@@ -0,0 +1,31 @@
+module OpenProject::PdfExport::TaskboardCard
+  class ColumnElement
+    def initialize(pdf, property_name, config, orientation, work_package)
+      @pdf = pdf
+      @property_name = property_name
+      @config = config
+      @orientation = orientation
+      @work_package = work_package
+    end
+
+    def draw
+      # Get value from model
+      has_label = @config['has_label']
+
+      value = @work_package.send(@property_name) if @work_package.respond_to?(@property_name)
+      value = value.to_s
+
+      text = ""
+      text = text + "#{@property_name}:- " if has_label
+      text = text + value
+
+      # Draw on pdf
+      offset = [@orientation[:x_offset], @orientation[:y_offset]]
+      box = @pdf.text_box(text,
+        {:height => 20,
+         :at => offset,
+         :size => 20,
+         :padding_bottom => 5})
+    end
+  end
+end

lib/open_project/pdf_export/taskboard_card/document_generator.rb

@@ -2,10 +2,13 @@ require 'prawn'
 
 module OpenProject::PdfExport::TaskboardCard
   class DocumentGenerator
+
     attr_reader :config
     attr_reader :work_packages
     attr_reader :pdf
     attr_reader :current_position
+    attr_reader :paper_width
+    attr_reader :paper_height
 
     def initialize(config, work_packages)
       defaults = { page_size: "A4" }
@@ -15,6 +18,9 @@ module OpenProject::PdfExport::TaskboardCard
 
       page_layout = :landscape
       page_size = config.page_size or defaults[:page_size]
+      geom = Prawn::Document::PageGeometry::SIZES[page_size]
+      @paper_width = geom[0]
+      @paper_height = geom[1]
 
       @pdf = Prawn::Document.new(
         :page_layout => page_layout,
@@ -29,79 +35,41 @@ module OpenProject::PdfExport::TaskboardCard
       # TODO RS: Define pdf page defaults, sizes, borders etc...
       # pdf.start_new_page
       render_cards
-
       pdf.render
     end
 
     def render_cards
-      # TESTING: RENDER FIRST WORK PACKAGE
-      render_rows(work_packages.first)
 
-      # TODO: Removed for testing convenience
-      # Iterate over all work packages
-      # work_packages.each_with_index do |wp, i|
-      #   render_rows wp
-      # end
-    end
-
-    def render_rows(work_package)
-      @current_position = {
-        y_offset: pdf.bounds.height,
-        x_offset: 0
+      # TODO: This needs to be done for x cards per page and the appropriate offsets and bounds
+      # calculated for each. Just now doing the default 1 per page and only the first work package.
+      orientation = {
+        y_offset: pdf.bounds.height - 20,
+        x_offset: 20,
+        width: 400, # TODO: Calculate these based on page layout
+        height: 400
       }
 
-      config.rows_hash["rows"].each do |key, value|
-        render_row(work_package, value)
-        adjust_current_position(value)
-      end
+      card_element = CardElement.new(pdf, orientation, config.rows_hash, work_packages.first)
+      card_element.draw
     end
 
-    def render_row(work_package, row_hash)
-      row_hash["columns"].each do |key, value|
-        render_column(work_package, key, value)
-      end
-    end
-
-    def render_column(work_package, property_name, column_hash)
-      column = ColumnElement.new(pdf, work_package, property_name, column_hash)
-      column.draw(current_position)
-    end
-
-    def adjust_current_position(row_config)
-        # The current position needs to be manipulated based on the minimun lines, font size and
-        # priority of the column. This will need to take into consideration all of the rows at once
-        # to decide on which ones get prioritised, and so will need something a lot more clever
-        # than just adjusting it inline like this.
-        current_position[:y_offset] -= (pdf.bounds.height * 0.05)
-    end
+    # def to_pts(v)
+    #   return if v.nil?
+    #   if v =~ /[a-z]{2}$/i
+    #     units = v[-2, 2].downcase
+    #     v = v[0..-3]
+    #   else
+    #     units = 'pt'
+    #   end
+
+    #   v = "#{v}0" if v =~ /\.$/
+
+    #   return Float(v).mm if units == 'mm'
+    #   return Float(v).cm if units == 'cm'
+    #   return Float(v).in if units == 'in'
+    #   return Float(v).pt if units == 'pt'
+    #   raise "Unexpected units '#{units}'"
+    # end
   end
 
-  class ColumnElement
-    def initialize(pdf, work_package, property_name, config)
-      @pdf = pdf
-      @work_package = work_package
-      @property_name = property_name
-      @config = config
-    end
-
-    def draw(position)
-      # Get value from model
-      has_label = @config['has_label']
-
-      value = @work_package.send(@property_name) if @work_package.respond_to?(@property_name)
-      value = value.to_s
-
-      text = ""
-      text = text + "#{@property_name}:- " if has_label
-      text = text + value
-
-      # Draw on pdf
-      offset = [0, position[:y_offset]]
-      box = @pdf.text_box(text,
-        {:height => 20,
-         :at => offset,
-         :size => 20,
-         :padding_bottom => 5})
-    end
-  end
 end

lib/open_project/pdf_export/taskboard_card/row_element.rb

@@ -0,0 +1,25 @@
+module OpenProject::PdfExport::TaskboardCard
+  class RowElement
+    def initialize(pdf, orientation, columns_config, work_package)
+      @pdf = pdf
+      @orientation = orientation
+      @columns_config = columns_config
+      @work_package = work_package
+      @column_elements = []
+
+      # Initialise column elements
+      columns_config.each do |key, value|
+        # TODO: Intelligently configure the orientation of column elements
+        column_orientation = @orientation
+        @column_elements << ColumnElement.new(@pdf, key, value, column_orientation, @work_package)
+      end
+    end
+
+    def draw
+      # Draw columns
+      @column_elements.each do |c|
+        c.draw
+      end
+    end
+  end
+end