# coding: utf-8

module ThinReports
  module Generator
    
    # @private
    module Pdf::DrawShape
      # @param [ThinReports::Core::Shape::Tblock::Internal] shape
      def draw_shape_tblock(shape)
        x, y, w, h = shape.box.values_at('x', 'y', 'width', 'height')
        
        content = shape.real_value.to_s
        unless shape.multiple?
          content = content.gsub(/\n/, ' ')
        end
        text_box(content, x, y, w, h, common_text_attrs(shape.attributes))
      end
      
      # @param [ThinReports::Core::Shape::Basic::Internal] shape
      def draw_shape_image(shape)
        x, y, w, h = shape.svg_attrs.values_at('x', 'y', 'width', 'height')
        base64image(extract_base64_string(shape.svg_attrs['xlink:href']),
                    x, y, w, h)
      end
      
      # @param [ThinReports::Core::Shape::Text::Internal] shape
      def draw_shape_text(shape)
        x, y, w, h = shape.box.values_at('x', 'y', 'width', 'height')
        text(shape.text.join("\n"), x, y, w, h, 
             shape_text_attrs(shape))
      end
      
      # @param [ThinReports::Core::Shape::Basic::Internal] shape
      def draw_shape_ellipse(shape)
        args = shape.svg_attrs.values_at('cx', 'cy', 'rx', 'ry')
        args << common_graphic_attrs(shape.attributes)
        ellipse(*args)
      end
      
      # @param [ThinReports::Core::Shape::Basic::Internal] shape
      def draw_shape_line(shape)
        args = shape.svg_attrs.values_at('x1', 'y1', 'x2', 'y2')
        args << common_graphic_attrs(shape.attributes)
        line(*args)
      end
      
      # @param [ThinReports::Core::Shape::Basic::Internal] shape
      def draw_shape_rect(shape)
        args = shape.svg_attrs.values_at('x', 'y', 'width', 'height')
        args << common_graphic_attrs(shape.attributes) do |attrs|
          attrs[:radius] = shape.svg_attrs['rx']
        end
        rect(*args)
      end
    
    private
      
      # @param [ThinReports::Core::Shape::Text::Internal]
      # @return [Hash]
      def shape_text_attrs(shape)
        format = shape.format
        
        common_text_attrs(shape.attributes) do |attrs|
          # Set the :line_height option.
          attrs[:line_height] = format.line_height unless format.line_height.blank?
          # Set the :valign option.
          attrs[:valign]      = text_valign(format.valign)
        end
      end
      
    end
    
  end
end