| 1279 | //------------------------------------------------------------------------ |
| 1280 | template<class VC> |
| 1281 | unsigned path_base<VC>::arrange_polygon_orientation(unsigned start, |
| 1282 | path_flags_e orientation) |
| 1283 | { |
| 1284 | if(orientation == path_flags_none) return start; |
| 1285 | |
| 1286 | // Skip all non-vertices at the beginning |
| 1287 | while(start < m_vertices.total_vertices() && |
| 1288 | !is_vertex(m_vertices.command(start))) ++start; |
| 1289 | |
| 1290 | // Skip all insignificant move_to |
| 1291 | while(start+1 < m_vertices.total_vertices() && |
| 1292 | is_move_to(m_vertices.command(start)) && |
| 1293 | is_move_to(m_vertices.command(start+1))) ++start; |
| 1294 | |
| 1295 | // Find the last vertex |
| 1296 | unsigned end = start + 1; |
| 1297 | while(end < m_vertices.total_vertices() && |
| 1298 | !is_next_poly(m_vertices.command(end))) ++end; |
| 1299 | |
| 1300 | if(end - start > 2) |
| 1301 | { |
| 1302 | if(perceive_polygon_orientation(start, end) != unsigned(orientation)) |
| 1303 | { |
| 1304 | // Invert polygon, set orientation flag, and skip all end_poly |
| 1305 | invert_polygon(start, end); |
| 1306 | unsigned cmd; |
| 1307 | while(end < m_vertices.total_vertices() && |
| 1308 | is_end_poly(cmd = m_vertices.command(end))) |
| 1309 | { |
| 1310 | m_vertices.modify_command(end++, set_orientation(cmd, orientation)); |
| 1311 | } |
| 1312 | } |
| 1313 | } |
| 1314 | return end; |
| 1315 | } |
| 1316 | |
| 1317 | //------------------------------------------------------------------------ |
| 1318 | template<class VC> |
nothing calls this directly
no test coverage detected