set up specs. added orientation to config.

app/models/taskboard_card_configuration.rb

@@ -1,7 +1,15 @@
 
 class TaskboardCardConfiguration < ActiveRecord::Base
   #Note: rows is YAML text which we'll parse into a hash
-  attr_accessible :identifier, :name, :rows, :per_page, :page_size
+  attr_accessible :identifier, :name, :rows, :per_page, :page_size, :orientation
+
+  def landscape?
+    !portrait?
+  end
+
+  def portrait?
+    orientation == "portrait"
+  end
 
   def rows_hash
     YAML::load(rows)

db/migrate/20140117091758_add_orientation_to_taskboard_card_configuration.rb

@@ -0,0 +1,5 @@
+class AddOrientationToTaskboardCardConfiguration < ActiveRecord::Migration
+  def change
+    add_column :taskboard_card_configurations, :orientation, :string
+  end
+end

lib/open_project/pdf_export/taskboard_card/card_element.rb

@@ -121,7 +121,11 @@ module OpenProject::PdfExport::TaskboardCard
       @rows_config["rows"].each_with_index do |(key, value), i|
         # min lines * font height (first col) # TODO: get the biggest one
         k, v = value["columns"].first
-        min_heights[i] = (@pdf.font.height_at(v["font_size"]) * v["minimum_lines"]).floor
+        min_lines = v["minimum_lines"]
+        min_lines ||= 1
+        font_size = v["font_size"]
+        font_size ||= 10
+        min_heights[i] = (@pdf.font.height_at(font_size) * min_lines).floor
       end
       min_heights
     end

spec/spec_helper.rb

@@ -0,0 +1,6 @@
+# -- load spec_helper from OpenProject core
+require "spec_helper"
+
+# load gem dependencies
+require "prawn"
+require "pdf/inspector"

spec/taskboard_card/document_generator_spec.rb

@@ -0,0 +1,27 @@
+require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
+
+describe OpenProject::PdfExport::TaskboardCard::DocumentGenerator do
+  # let(:pdf) { Prawn::Document.new(:margin => 0) }
+  let(:config) { TaskboardCardConfiguration.new({
+    name: "Default",
+    identifier: "default",
+    per_page: 1,
+    page_size: "A4",
+    orientation: "landscape",
+    rows: "rows:\n    row1:\n      has_border: false\n      columns:\n        id:\n          has_label: false\n          font_size: 15\n    row1:\n      has_border: false\n      columns:\n        subject:\n          has_label: false\n          font_size: 15"
+  })}
+  let(:work_package) { WorkPackage.new({
+    id: 1234,
+    subject: "Test work package",
+    description: "This is a test work package"
+  })}
+
+  it 'shows work package subject' do
+    work_packages = [work_package]
+    generator = OpenProject::PdfExport::TaskboardCard::DocumentGenerator.new(config, work_packages)
+
+    text = PDF::Inspector::Text.analyze(generator.render)
+    text.strings.join.should == 'Test work package'
+  end
+
+end