save_sprue.rb in squib-0.14.2

- old
+ new
@@ -1,205 +1,204 @@
-module Squib
-  module Graphics
-    # Helper class to generate templated sheet.
-    class SaveSprue
-      def initialize(deck, tmpl, sheet_args)
-        @deck = deck
-        @tmpl = tmpl
-        @page_number = 1
-        @sheet_args = sheet_args # might be Args::Sheet or Args::SaveBatch
-        @overlay_lines = @tmpl.crop_lines.select do |line|
-          line['overlay_on_cards']
-        end
-      end
-
-      def render_sheet(range)
-        cc = init_cc
-        cc.set_source_color(:white) # white backdrop TODO make option
-        cc.paint
-        slots = @tmpl.cards
-        per_sheet = slots.size
-        check_oversized_card
-
-        draw_overlay_below_cards cc if range.size
-
-        track_progress(range) do |bar|
-          range.each do |i|
-            cc = next_page_if_needed(cc, i, per_sheet)
-
-            card = @deck.cards[i]
-            slot = slots[i % per_sheet]
-
-            draw_card cc, card, 
-                      slot['x'], slot['y'], 
-                      slot['rotate'], 
-                      @sheet_args.trim, @sheet_args.trim_radius
-
-            bar.increment
-          end
-
-          draw_overlay_above_cards cc
-          cc = draw_page cc
-          cc.target.finish
-        end
-      end
-
-      protected
-
-      # Initialize the Cairo Context
-      def init_cc
-        raise NotImplementedError
-      end
-
-      def draw_page(cc)
-        raise NotImplementedError
-      end
-
-      def full_filename
-        raise NotImplementedError
-      end
-
-      private
-
-      def next_page_if_needed(cc, i, per_sheet)
-        return cc unless (i != 0) && (i % per_sheet).zero?
-
-        draw_overlay_above_cards cc
-        cc = draw_page cc
-        draw_overlay_below_cards cc
-        @page_number += 1
-        cc
-      end
-
-      def track_progress(range)
-        msg = "Saving templated sheet to #{full_filename}"
-        @deck.progress_bar.start(msg, range.size) { |bar| yield(bar) }
-      end
-
-      def draw_overlay_below_cards(cc)
-        if @tmpl.crop_line_overlay == :on_margin
-          add_margin_overlay_clip_mask cc
-          cc.clip
-          draw_crop_line cc, @tmpl.crop_lines
-          cc.reset_clip
-        elsif @tmpl.crop_line_overlay == :beneath_cards
-          draw_crop_line cc, @tmpl.crop_lines
-        end
-      end
-
-      def draw_overlay_above_cards(cc)
-        if @tmpl.crop_line_overlay == :overlay_on_cards
-          draw_crop_line cc, @tmpl.crop_lines
-        else
-          draw_crop_line cc, @overlay_lines
-        end
-      end
-
-      def add_margin_overlay_clip_mask(cc)
-        margin = @tmpl.margin
-        cc.new_path
-        cc.rectangle(
-          margin[:left], margin[:top],
-          margin[:right] - margin[:left],
-          margin[:bottom] - margin[:top]
-        )
-        cc.new_sub_path
-        cc.move_to @tmpl.sheet_width, 0
-        cc.line_to 0, 0
-        cc.line_to 0, @tmpl.sheet_height
-        cc.line_to @tmpl.sheet_width, @tmpl.sheet_height
-        cc.close_path
-      end
-
-      def draw_crop_line(cc, crop_lines)
-        crop_lines.each do |line|
-          cc.move_to line['line'].x1, line['line'].y1
-          cc.line_to line['line'].x2, line['line'].y2
-          cc.set_source_color line['color']
-          cc.set_line_width line['width']
-          cc.set_dash(line['style'].pattern) if line['style'].pattern
-          cc.stroke
-        end
-      end
-
-      def check_oversized_card
-        Squib.logger.warn {
-          "Card size is larger than sprue's expected card size "\
-          "of #{@tmpl.card_width}x#{@tmpl.card_height}. Cards may overlap."
-        } if (@deck.width - 2.0 * @sheet_args.trim)  > @tmpl.card_width ||
-             (@deck.height - 2.0 * @sheet_args.trim) > @tmpl.card_height
-      end
-
-      def draw_card(cc, card, x, y, angle, trim, trim_radius)
-        # Compute the true size of the card after trimming
-        w = @deck.width - 2.0 * trim
-        h = @deck.height - 2.0 * trim
-
-        # Normalize the angles first
-        # TODO do this in the args class
-        angle = angle % (2 * Math::PI)
-        angle = 2 * Math::PI - angle if angle < 0
-
-        # Perform the actual rotation and drawing
-        mat = cc.matrix # Save the transformation matrix to revert later
-        cc.translate x, y
-        cc.translate @deck.width / 2.0, @deck.height / 2.0
-        cc.rotate angle
-        cc.translate -@deck.width / 2.0, -@deck.height / 2.0
-        cc.rounded_rectangle(trim, trim, w, h, trim_radius, trim_radius) # clip
-        cc.clip
-        cc.set_source card.cairo_surface, 0, 0
-        cc.matrix = mat
-        cc.paint
-        cc.reset_clip
-      end
-    end
-
-    # Templated sheet renderer in PDF format.
-    class SaveSpruePDF < SaveSprue
-      def init_cc
-        ratio = 72.0 / @deck.dpi
-
-        surface = Cairo::PDFSurface.new(
-          full_filename,
-          @tmpl.sheet_width * ratio,
-          @tmpl.sheet_height * ratio
-        )
-
-        cc = Cairo::Context.new(surface)
-        cc.scale(72.0 / @deck.dpi, 72.0 / @deck.dpi) # make it like pixels
-        cc
-      end
-
-      def draw_page(cc)
-        cc.show_page
-        cc.set_source_color(:white) # white backdrop TODO make option
-        cc.paint
-        cc
-      end
-
-      def full_filename
-        @sheet_args.full_filename
-      end
-    end
-
-    # Templated sheet renderer in PNG format.
-    class SaveSpruePNG < SaveSprue
-      def init_cc
-        surface = Cairo::ImageSurface.new @tmpl.sheet_width, @tmpl.sheet_height
-        Cairo::Context.new(surface)
-      end
-
-      def draw_page(cc)
-        cc.target.write_to_png(full_filename)
-        init_cc
-        cc.set_source_color(:white) # white backdrop TODO make option
-        cc.paint
-        cc
-      end
-
-      def full_filename
-        @sheet_args.full_filename @page_number
-      end
-    end
-  end
-end
+module Squib
+  module Graphics
+    # Helper class to generate templated sheet.
+    class SaveSprue
+      def initialize(deck, tmpl, sheet_args)
+        @deck = deck
+        @tmpl = tmpl
+        @page_number = 1
+        @sheet_args = sheet_args # might be Args::Sheet or Args::SaveBatch
+        @overlay_lines = @tmpl.crop_lines.select do |line|
+          line['overlay_on_cards']
+        end
+      end
+
+      def render_sheet(range)
+        cc = init_cc
+        cc.set_source_color(:white) # white backdrop TODO make option
+        cc.paint
+        slots = @tmpl.cards
+        per_sheet = slots.size
+        check_oversized_card
+
+        draw_overlay_below_cards cc if range.size
+
+        track_progress(range) do |bar|
+          range.each do |i|
+            cc = next_page_if_needed(cc, i, per_sheet)
+
+            card = @deck.cards[i]
+            slot = slots[i % per_sheet]
+
+            draw_card cc, card,
+                      slot['x'], slot['y'],
+                      slot['rotate'],
+                      @sheet_args.trim, @sheet_args.trim_radius
+
+            bar.increment
+          end
+
+          draw_overlay_above_cards cc
+          cc.target.finish
+        end
+      end
+
+      protected
+
+      # Initialize the Cairo Context
+      def init_cc
+        raise NotImplementedError
+      end
+
+      def draw_page(cc)
+        raise NotImplementedError
+      end
+
+      def full_filename
+        raise NotImplementedError
+      end
+
+      private
+
+      def next_page_if_needed(cc, i, per_sheet)
+        return cc unless (i != 0) && (i % per_sheet) == 0
+
+        draw_overlay_above_cards cc
+        cc = draw_page cc
+        draw_overlay_below_cards cc
+        @page_number += 1
+        cc
+      end
+
+      def track_progress(range)
+        msg = "Saving templated sheet to #{full_filename}"
+        @deck.progress_bar.start(msg, range.size) { |bar| yield(bar) }
+      end
+
+      def draw_overlay_below_cards(cc)
+        if @tmpl.crop_line_overlay == :on_margin
+          add_margin_overlay_clip_mask cc
+          cc.clip
+          draw_crop_line cc, @tmpl.crop_lines
+          cc.reset_clip
+        elsif @tmpl.crop_line_overlay == :beneath_cards
+          draw_crop_line cc, @tmpl.crop_lines
+        end
+      end
+
+      def draw_overlay_above_cards(cc)
+        if @tmpl.crop_line_overlay == :overlay_on_cards
+          draw_crop_line cc, @tmpl.crop_lines
+        else
+          draw_crop_line cc, @overlay_lines
+        end
+      end
+
+      def add_margin_overlay_clip_mask(cc)
+        margin = @tmpl.margin
+        cc.new_path
+        cc.rectangle(
+          margin[:left], margin[:top],
+          margin[:right] - margin[:left],
+          margin[:bottom] - margin[:top]
+        )
+        cc.new_sub_path
+        cc.move_to @tmpl.sheet_width, 0
+        cc.line_to 0, 0
+        cc.line_to 0, @tmpl.sheet_height
+        cc.line_to @tmpl.sheet_width, @tmpl.sheet_height
+        cc.close_path
+      end
+
+      def draw_crop_line(cc, crop_lines)
+        crop_lines.each do |line|
+          cc.move_to line['line'].x1, line['line'].y1
+          cc.line_to line['line'].x2, line['line'].y2
+          cc.set_source_color line['color']
+          cc.set_line_width line['width']
+          cc.set_dash(line['style'].pattern) if line['style'].pattern
+          cc.stroke
+        end
+      end
+
+      def check_oversized_card
+        Squib.logger.warn {
+          "Card size is larger than sprue's expected card size "\
+          "of #{@tmpl.card_width}x#{@tmpl.card_height}. Cards may overlap."
+        } if (@deck.width - 2.0 * @sheet_args.trim)  > @tmpl.card_width ||
+             (@deck.height - 2.0 * @sheet_args.trim) > @tmpl.card_height
+      end
+
+      def draw_card(cc, card, x, y, angle, trim, trim_radius)
+        # Compute the true size of the card after trimming
+        w = @deck.width - 2.0 * trim
+        h = @deck.height - 2.0 * trim
+
+        # Normalize the angles first
+        # TODO do this in the args class
+        angle = angle % (2 * Math::PI)
+        angle = 2 * Math::PI - angle if angle < 0
+
+        # Perform the actual rotation and drawing
+        mat = cc.matrix # Save the transformation matrix to revert later
+        cc.translate x, y
+        cc.translate @deck.width / 2.0, @deck.height / 2.0
+        cc.rotate angle
+        cc.translate -@deck.width / 2.0, -@deck.height / 2.0
+        cc.rounded_rectangle(trim, trim, w, h, trim_radius, trim_radius) # clip
+        cc.clip
+        cc.set_source card.cairo_surface, 0, 0
+        cc.matrix = mat
+        cc.paint
+        cc.reset_clip
+      end
+    end
+
+    # Templated sheet renderer in PDF format.
+    class SaveSpruePDF < SaveSprue
+      def init_cc
+        ratio = 72.0 / @deck.dpi
+
+        surface = Cairo::PDFSurface.new(
+          full_filename,
+          @tmpl.sheet_width * ratio,
+          @tmpl.sheet_height * ratio
+        )
+
+        cc = Cairo::Context.new(surface)
+        cc.scale(72.0 / @deck.dpi, 72.0 / @deck.dpi) # make it like pixels
+        cc
+      end
+
+      def draw_page(cc)
+        cc.show_page
+        cc.set_source_color(:white) # white backdrop TODO make option
+        cc.paint
+        cc
+      end
+
+      def full_filename
+        @sheet_args.full_filename
+      end
+    end
+
+    # Templated sheet renderer in PNG format.
+    class SaveSpruePNG < SaveSprue
+      def init_cc
+        surface = Cairo::ImageSurface.new @tmpl.sheet_width, @tmpl.sheet_height
+        Cairo::Context.new(surface)
+      end
+
+      def draw_page(cc)
+        cc.target.write_to_png(full_filename)
+        init_cc
+        cc.set_source_color(:white) # white backdrop TODO make option
+        cc.paint
+        cc
+      end
+
+      def full_filename
+        @sheet_args.full_filename @page_number
+      end
+    end
+  end
+end