svg-flatten: Add 'complete pattern tiles only' switch

This is not part of the SVG spec, but it is useful for generating proto
boards using SVG patterns.

2 files changed, 20 insertions, 8 deletions

diff --git a/svg-flatten/include/geom2d.hpp b/svg-flatten/include/geom2d.hpp
index 6a52d0b..4fafd80 100644
--- a/svg-flatten/include/geom2d.hpp
+++ b/svg-flatten/include/geom2d.hpp
@@ -143,17 +143,28 @@ namespace gerbolyze {
             /* Transform given clipper paths */
             void transform_paths(ClipperLib::Paths &paths) {
                 for (auto &p : paths) {
-                    std::transform(p.begin(), p.end(), p.begin(),
-                            [this](ClipperLib::IntPoint p) -> ClipperLib::IntPoint {
-                                d2p out(this->doc2phys(d2p{p.X / clipper_scale, p.Y / clipper_scale}));
-                                return {
-                                    (ClipperLib::cInt)round(out[0] * clipper_scale),
-                                    (ClipperLib::cInt)round(out[1] * clipper_scale)
-                                };
-                            });
+                    transform_clipper_path(p);
                 }
             }
 
+            void transform_clipper_path(ClipperLib::Path &path) {
+                std::transform(path.begin(), path.end(), path.begin(),
+                        [this](ClipperLib::IntPoint p) -> ClipperLib::IntPoint {
+                            d2p out(this->doc2phys(d2p{p.X / clipper_scale, p.Y / clipper_scale}));
+                            return {
+                                (ClipperLib::cInt)round(out[0] * clipper_scale),
+                                (ClipperLib::cInt)round(out[1] * clipper_scale)
+                            };
+                        });
+            }
+
+            void transform_polygon(Polygon &poly) {
+                std::transform(poly.begin(), poly.end(), poly.begin(),
+                        [this](d2p p) -> d2p {
+                            return this->doc2phys(d2p{p[0], p[1]});
+                        });
+            }
+
             string dbg_str() {
                 ostringstream os;
                 os << "xform2d< " << setw(5);
diff --git a/svg-flatten/include/gerbolyze.hpp b/svg-flatten/include/gerbolyze.hpp
index cd837ba..9de5572 100644
--- a/svg-flatten/include/gerbolyze.hpp
+++ b/svg-flatten/include/gerbolyze.hpp
@@ -197,6 +197,7 @@ namespace gerbolyze {
         VectorizerSelectorizer &m_vec_sel;
         bool outline_mode = false;
         bool flip_color_interpretation = false;
+        bool pattern_complete_tiles_only = false;
     };
 
     class RenderContext {