From 67a1b3a99ffdb8c2092748f384d33529fd1aac5c Mon Sep 17 00:00:00 2001
From: Matthias Koefferlein <matthias@koefferlein.de>
Date: Sun, 14 Mar 2021 02:40:12 +0100
Subject: [PATCH] WIP: fill + DRC, experimental.

---
 src/drc/drc/built-in-macros/_drc_engine.rb |  22 ++++-
 src/drc/drc/built-in-macros/_drc_layer.rb  |  57 +++++++++++
 src/drc/drc/built-in-macros/_drc_tags.rb   | 110 +++++++++++++++++++++
 3 files changed, 188 insertions(+), 1 deletion(-)

diff --git a/src/drc/drc/built-in-macros/_drc_engine.rb b/src/drc/drc/built-in-macros/_drc_engine.rb
index 8cb066c0b..d84f3f9e3 100644
--- a/src/drc/drc/built-in-macros/_drc_engine.rb
+++ b/src/drc/drc/built-in-macros/_drc_engine.rb
@@ -93,7 +93,7 @@ module DRC
     def transparent
       DRCShielded::new(false)
     end
-    
+
     def projection_limits(*args)
       self._context("projection_limits") do
         if args.size == 0
@@ -210,6 +210,26 @@ module DRC
         DRCAreaAndPerimeter::new(r, 1.0, f)
       end
     end
+
+    def fill_cell(name)
+      DRCFillCell::new(name)
+    end
+
+    def hstep(x, y = nil)
+      DRCFillStep(true, x, y)
+    end
+    
+    def vstep(x, y = nil)
+      DRCFillStep(false, x, y)
+    end
+
+    def auto_origin
+      DRCFillOrigin::new
+    end
+
+    def origin(x, y)
+      DRCFillOrigin::new(x, y)
+    end
     
     # %DRC%
     # @brief Defines SPICE output format (with options) 
diff --git a/src/drc/drc/built-in-macros/_drc_layer.rb b/src/drc/drc/built-in-macros/_drc_layer.rb
index b5fa7a3df..9f50b664e 100644
--- a/src/drc/drc/built-in-macros/_drc_layer.rb
+++ b/src/drc/drc/built-in-macros/_drc_layer.rb
@@ -3892,6 +3892,63 @@ CODE
       @engine._context("output") do
         @engine._vcmd(@engine, :_output, self.data, *args)
       end
+    end
+
+    # Experimental
+    
+    def fill(*args)
+
+      m = "fill"
+
+      source = @engine.source
+      row_step = nil
+      column_step = nil
+      pattern = nil
+      origin = RBA::DPoint::new
+
+      args.each_with_index do |a,ai|
+        if a.is_a?(DRCSource)
+          if source
+            raise("Duplicate source specification for '#{m}' at argument ##{ai+1}")
+          end
+          source = a
+        elsif a.is_a?(DRCFillCell)
+          if pattern
+            raise("Duplicate fill pattern specification for '#{m}' at argument ##{ai+1}")
+          end
+          pattern = a
+        elsif a.is_a?(DRCFillStep)
+          if a.for_row
+            if row_step
+              raise("Duplicate hstep specification for '#{m}' at argument ##{ai+1}")
+            end
+            row_step = a
+          else
+            if column_step
+              raise("Duplicate vstep specification for '#{m}' at argument ##{ai+1}")
+            end
+            column_step = a
+          end
+        elsif a.is_a?(DRCFillOrigin)
+          origin = a.origin
+        else
+          raise("Argument ##{ai+1} not understood for '#{m}'")
+        end
+      end
+
+      if !pattern
+        raise("No fill pattern given for '#{m}'")
+      end
+
+      if !row_step
+        row_step = RBA::DVector::new(pattern.bbox.width, 0)
+      end
+      if !column_step
+        column_step = RBA::DVector::new(0, pattern.bbox.height)
+      end
+
+
+
     end
     
     # %DRC%
diff --git a/src/drc/drc/built-in-macros/_drc_tags.rb b/src/drc/drc/built-in-macros/_drc_tags.rb
index fb9c051fc..b49d1ce7d 100644
--- a/src/drc/drc/built-in-macros/_drc_tags.rb
+++ b/src/drc/drc/built-in-macros/_drc_tags.rb
@@ -180,6 +180,116 @@ module DRC
       @value
     end
   end
+
+  # A wrapper for the fill cell definition
+  class DRCFillCell
+
+    def initialize(name)
+      @cell_name = name
+      @shapes = []
+      @origin = RBA::DVector::new
+    end
+
+    def shape(*args)
+
+      layer = nil
+      datatype = nil
+      name = nil
+      shapes = []
+
+      args.each_with_index do |a,ai|
+        if a.is_a?(1.class)
+          if !layer
+            layer = a
+            datatype = 0
+          elsif !datatype
+            datatype = a
+          else
+            raise("Argument ##{ai+1} not understood for FillCell#shape")
+          end
+        elsif a.is_a?(String)
+          if !name
+            name = a
+          else
+            raise("Argument ##{ai+1} not understood for FillCell#shape")
+          end
+        elsif a.is_a?(RBA::DBox) || a.is_a?(RBA::DPath) || a.is_a?(RBA::DPolygon) || a.is_a?(RBA::DText)
+          shapes << a
+        else
+          raise("Argument ##{ai+1} not understood for FillCell#shape (needs to one of: number, string or box, path, polygon or text)")
+        end
+      end
+
+      if !shapes.empty?
+
+        li = RBA::LayerInfo::new
+        layer && li.layer = layer
+        datatype && li.datatype = datatype
+        name && li.name = name
+
+        @shapes << [ li, shapes ]
+
+      end
+     
+    end
+
+    def origin(x, y)
+      if !x.is_a?(1.class) && !x.is_a?(1.0.class)
+        raise("x argument not numeric FillCell#origin")
+      end
+      if !y.is_a?(1.class) && !y.is_a?(1.0.class)
+        raise("y argument not numeric FillCell#origin")
+      end
+      @origin = RBA::DVector::new(x, y)
+    end
+
+  end
  
+  # A wrapper for the fill step definition
+  class DRCFillStep
+    def initialize(for_row, x, y = nil)
+      @for_row = for_row
+      if !x.is_a?(1.class) && !x.is_a?(1.0.class)
+        raise("x argument not numeric in fill step")
+      end
+      if y && !y.is_a?(1.class) && !y.is_a?(1.0.class)
+        raise("y argument not numeric in fill step")
+      end
+      if y
+        @step = RBA::DVector::new(x, y)
+      elsif for_row
+        @step = RBA::DVector::new(x, 0)
+      else
+        @step = RBA::DVector::new(0, x)
+      end 
+    end
+    def for_row
+      @for_row
+    end
+    def step
+      @step
+    end
+  end
+
+  # A wrapper for the fill origin definition
+  class DRCFillOrigin
+    def initialize(x = nil, y = nil)
+      if !x && !y
+        @origin = nil
+      else
+        if !x.is_a?(1.class) && !x.is_a?(1.0.class)
+          raise("x argument not numeric in fill origin")
+        end
+        if !y.is_a?(1.class) && !y.is_a?(1.0.class)
+          raise("y argument not numeric in fill origin")
+        end
+        @origin = RBA::DVector::new(x, y)
+      end
+    end
+    def origin
+      @origin
+    end
+  end
+
 end