mirror of https://github.com/KLayout/klayout.git
149 lines
4.7 KiB
C++
149 lines
4.7 KiB
C++
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/*
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KLayout Layout Viewer
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Copyright (C) 2006-2020 Matthias Koefferlein
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef HDR_dbGDS2ReaderBase
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#define HDR_dbGDS2ReaderBase
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#include "dbPluginCommon.h"
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#include "dbLayout.h"
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#include "dbReader.h"
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#include "dbStreamLayers.h"
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#include "tlException.h"
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#include "tlInternational.h"
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#include "tlProgress.h"
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#include "tlString.h"
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#include "tlStream.h"
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namespace db
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{
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struct GDS2XY
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{
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unsigned char x[4];
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unsigned char y[4];
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};
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/**
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* @brief The GDS2 format basic stream reader
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*/
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class DB_PLUGIN_PUBLIC GDS2ReaderBase
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: public ReaderBase
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{
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public:
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/**
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* @brief Constructor
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*/
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GDS2ReaderBase ();
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/**
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* @brief Destructor
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*/
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~GDS2ReaderBase ();
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/**
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* @brief Accessor method to the library name
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*/
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const std::string &libname () const { return m_libname; }
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protected:
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/**
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* @brief The basic read method
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*
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* This method will read the stream data and translate this to
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* insert calls into the layout object. This will not do much
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* on the layout object beside inserting the objects.
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* It can be given a couple of options specified with the
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* LoadLayoutOptions object.
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* The returned map will contain all layers, the passed
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* ones and the newly created ones.
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*
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* @param layout The layout object to write to
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* @param layer_map The layer mapping on input
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* @param create_other_layer A flag indicating whether to read all other layers
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* @param enable_text_objects A flag indicating whether to read text objects
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* @param enable_properties A flag indicating whether to read user properties
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* @param allow_multi_xy_records If true, tries to check for multiple XY records for BOUNDARY elements
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* @param box_mode How to treat BOX records (0: ignore, 1: as rectangles, 2: as boundaries, 3: error)
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* @return The LayerMap object that tells where which layer was loaded
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*/
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const LayerMap &basic_read (db::Layout &layout, const LayerMap &layer_map, bool create_other_layers, bool enable_text_objects, bool enable_properties, bool allow_multi_xy_records, unsigned int box_mode);
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/**
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* @brief Accessor method to the current cellname
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*/
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const tl::string &cellname () const { return m_cellname; }
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private:
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friend class GDS2ReaderLayerMapping;
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LayerMap m_layer_map;
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tl::string m_cellname;
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std::string m_libname;
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double m_dbu, m_dbuu;
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bool m_create_layers;
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bool m_read_texts;
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bool m_read_properties;
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bool m_allow_multi_xy_records;
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unsigned int m_box_mode;
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std::map <tl::string, std::vector<std::string> > m_context_info;
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std::vector <db::Point> m_all_points;
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std::map <tl::string, tl::string> m_mapped_cellnames;
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void read_context_info_cell ();
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void read_boundary (db::Layout &layout, db::Cell &cell, bool from_box_record);
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void read_path (db::Layout &layout, db::Cell &cell);
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void read_text (db::Layout &layout, db::Cell &cell);
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void read_box (db::Layout &layout, db::Cell &cell);
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void read_ref (db::Layout &layout, db::Cell &cell, bool array, tl::vector<db::CellInstArray> &instances, tl::vector<db::CellInstArrayWithProperties> &insts_wp);
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db::cell_index_type make_cell (db::Layout &layout, const char *cn, bool for_instance);
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void do_read (db::Layout &layout);
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std::pair <bool, unsigned int> open_dl (db::Layout &layout, const LDPair &dl, bool create);
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std::pair <bool, db::properties_id_type> finish_element (db::PropertiesRepository &rep);
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void finish_element ();
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virtual void error (const std::string &txt) = 0;
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virtual void warn (const std::string &txt) = 0;
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virtual std::string path () const = 0;
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virtual const char *get_string () = 0;
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virtual void get_string (tl::string &s) const = 0;
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virtual int get_int () = 0;
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virtual short get_short () = 0;
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virtual unsigned short get_ushort () = 0;
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virtual double get_double () = 0;
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virtual short get_record () = 0;
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virtual void unget_record (short rec_id) = 0;
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virtual void get_time (unsigned int *mod_time, unsigned int *access_time) = 0;
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virtual GDS2XY *get_xy_data (unsigned int &xy_length) = 0;
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virtual void progress_checkpoint () = 0;
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};
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}
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#endif
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