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xschem/src/xschem.h

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/* File: xschem.h
*
* This file is part of XSCHEM,
* a schematic capture and Spice/Vhdl/Verilog netlisting tool for circuit
* simulation.
* Copyright (C) 1998-2020 Stefan Frederik Schippers
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef CADGLOBALS
#define CADGLOBALS
#define XSCHEM_VERSION "2.9.7"
#define XSCHEM_FILE_VERSION "1.2"
#if HAS_PIPE == 1
/* fdopen() */
#define _POSIX_C_SOURCE 200112L
#endif
#if HAS_POPEN==1
/* popen() , pclose(), */
#define _POSIX_C_SOURCE 200112L
#endif
#define TCL_WIDE_INT_TYPE long
#if (defined(__APPLE__) && defined(__MACH__))
#define __unix__
#endif
/* approximate PI definition */
#define XSCH_PI 3.14159265358979323846264338327950288419716939937
#ifdef __unix__
#include "../config.h"
#else
#include "../XSchemWin/config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include <ctype.h>
#include <limits.h> /* PATH_MAX */
#ifndef PATH_MAX
#define PATH_MAX 4096
#endif
#ifdef __unix__
#include <unistd.h>
#include <regex.h>
#else
#include <windows.h>
#include "tkWin.h"
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <time.h>
/* #include <sys/time.h> for gettimeofday(). use time() instead */
#include <signal.h>
#ifdef __unix__
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysymdef.h>
#include <X11/keysym.h>
#include <X11/Xatom.h>
#include <X11/xpm.h>
#define xunlink unlink
#else
#include <tkWinInt.h>
#define xunlink _unlink
#define MOUSE_WHEEL_UP 38
extern int XSetClipRectangles(register Display* dpy, GC gc, int clip_x_origin, int clip_y_origin, XRectangle* rectangles, int n, int ordering);
extern int XSetTile(Display* display, GC gctiled, Pixmap save_pixmap);
extern void change_to_unix_fn(char* fn);
extern char win_temp_dir[PATH_MAX];
#endif
#include <tcl.h>
#include <tk.h>
/* #include "memwatch.h" */
#define CADHEIGHT 700 /* initial window size */
#define CADWIDTH 1000
#define BACKLAYER 0
#define WIRELAYER 1
#define GRIDLAYER 2
#define SELLAYER 2
#define PROPERTYLAYER 1
#define TEXTLAYER 3
#define TEXTWIRELAYER 1 /* color for wire name labels / pins */
#define PINLAYER 5
#define GENERICLAYER 3
#define CADSNAP 10.0
#define CADGRID 20.0
#define CADGRIDTHRESHOLD 10.0
#define CADGRIDMULTIPLY 2.0
#define CADINITIALZOOM 1
#define CADINITIALX 10
#define CADINITIALY -870
#define CADZOOMSTEP 1.2
#define CADMOVESTEP 200
#define CADMAXZOOM 1000000.0
#define CADMINZOOM 0.000001
#define CADHALFDOTSIZE 4
#define CADNULLNODE -1 /* no valid node number */
#define CADWIREMINDIST 8.0
#define CADMAXWIRES 4096
#define CADMAXTEXT 2048
#define CADMAXOBJECTS 512 /* (initial) max # of lines, rects (for each layer!!) */
#define MAXGROUP 300 /* (initial) max # of objects that can be drawn while moving */
#define ELEMINST 4096 /* (initial) max # of placed elements, was 600 20102004 */
#define ELEMDEF 256 /* (initial) max # of defined elements */
#define EMBEDDED 1 /* used for embedded symbols marking in Instdef.flags */
#define CADMAXGRIDPOINTS 512
#define CADMAXHIER 80
#define CADCHUNKALLOC 512 /* was 256 20102004 */
#define CADDRAWBUFFERSIZE 128
/* 20180104 when x-width of drawing area s below this threshold use spatial */
/* hash table for drawing wires and instances (for faster lookup) instead of */
/* looping through the whole wire[] and inst_ptr[] arrays */
/* when drawing area is very big using spatial hash table may take longer than */
/* a simple for() loop through the big arrays + clip check. */
#define ITERATOR_THRESHOLD 42000.0
#define SCHEMATIC 1
#define SYMBOL 2
#define CAD_SPICE_NETLIST 1
#define CAD_VHDL_NETLIST 2
#define CAD_VERILOG_NETLIST 3
#define CAD_TEDAX_NETLIST 4
#define CAD_SYMBOL_ATTRS 5
#define STARTWIRE 1 /* possible states, encoded in global 'rubber' */
#define STARTPAN 2
#define STARTRECT 4
#define STARTLINE 8
#define SELECTION 16 /* signals that some objects are selected. */
#define STARTSELECT 32 /* used for drawing a selection rectangle */
#define STARTMOVE 64 /* used for move/copy operations */
#define STARTCOPY 128 /* used for move/copy operations */
#define STARTZOOM 256 /* used for move/copy operations */
#define STARTMERGE 512 /* used fpr merge schematic/symbol */
#define MENUSTARTWIRE 1024 /* start wire invoked from menu */
#define MENUSTARTLINE 2048 /* start line invoked from menu */
#define MENUSTARTRECT 4096 /* start rect invoked from menu */
#define MENUSTARTZOOM 8192 /* start zoom box invoked from menu */
#define STARTPAN2 16384 /* new pan method with mouse button3 20121123 */
#define MENUSTARTTEXT 32768 /* 20161201 click to place text if action starts from menu */
#define MENUSTARTSNAPWIRE 65536 /* start wire invoked from menu, snap to pin variant 20171022 */
#define STARTPOLYGON 131072 /* 20171115 */
#define MENUSTARTPOLYGON 262144 /* 20171117 */
#define STARTARC 524288
#define MENUSTARTARC 1048576
#define MENUSTARTCIRCLE 2097152
#define PLACE_SYMBOL 4194304 /* used in move_objects after place_symbol to avoid storing intermediate undo state */
#define START_SYMPIN 8388608
#define SELECTED 1 /* used in the .sel field for selected objs. */
#define SELECTED1 2 /* first point selected... */
#define SELECTED2 4 /* second point selected... */
#define SELECTED3 8
#define SELECTED4 16
#define WIRE 1 /* types of defined objects */
#define xRECT 2
#define LINE 4
#define ELEMENT 8
#define xTEXT 16
#define POLYGON 32 /* 20171115 */
#define ARC 64
/* for netlist.c */
#define BOXSIZE 3000
#define NBOXES 40
#define MAX_UNDO 80
/* viewers xschem can generate plot commands for */
#define NGSPICE 1
#define GAW 2
/* some useful primes */
/* 109, 163, 251, 367, 557, 823, 1237, 1861, 2777, 4177, 6247, 9371, 14057 */
/* 21089, 31627, 47431, 71143, 106721, 160073, 240101, 360163, 540217, 810343 */
/* 1215497, 1823231, 2734867, 4102283, 6153409, 9230113, 13845163 */
#define HASHSIZE 31627
/* parameters passed to action functions, see actions.c */
#define END 1 /* endop */
#define BEGIN 2 /* begin placing something */
#define PLACE 4 /* place something */
#define ADD 8 /* add something */
#define RUBBER 16 /* used for drawing rubber objects while placing them */
#define NOW 32 /* used for immediate (unbuffered) graphic operations */
#define ROTATE 64
#define FLIP 128
#define SET 256 /* currently used in bbox() function (sets clip rect) */
#define ABORT 512 /* used in move/copy_objects for aborting without unselecting */
#define THICK 1024 /* used to draw thick lines (buses) */
#define ROTATELOCAL 2048 /* rotate each selected object around its own anchor point 20171208 */
#define CLEAR 4096 /* used in new_wire to clear previous rubber when switching manhattan_lines */
/* #define DRAW 8192 */ /* was used in bbox() to draw things by using XCopyArea after setting clip rectangle */
#define HILIGHT 8192 /* used when calling draw_*symbol_outline() for hilighting instead of normal draw */
#define FONTWIDTH 20
#define FONTOFFSET 40
#define FONTHEIGHT 40
#define FONTDESCENT 15
#define FONTWHITESPACE 10
/* hash operations */
#define XINSERT 0
#define XLOOKUP 1
#define XDELETE 2
#define S(a) (sizeof(a)/sizeof(char))
#define BUS_WIDTH 4
#define POINTINSIDE(xa,ya,x1,y1,x2,y2) \
(xa>=x1 && xa<=x2 && ya>=y1 && ya<=y2 )
#define RECTINSIDE(xa,ya,xb,yb,x1,y1,x2,y2) \
(xa>=x1 && xa<=x2 && xb>=x1 && xb<=x2 && ya>=y1 && ya<=y2 && yb>=y1 && yb<=y2 )
#define ROTATION(x0, y0, x, y, rx, ry) \
{ \
double xxtmp = (flip ? 2 * x0 -x : x); \
if(rot==0) {rx = xxtmp; ry = y;} \
else if(rot==1) {rx = x0 - y + y0; ry = y0 + xxtmp - x0;} \
else if(rot==2) {rx = 2 * x0 - xxtmp; ry = 2 * y0 - y;} \
else {rx = x0 + y - y0; ry = y0 - xxtmp + x0;} \
}
#define ORDER(x1,y1,x2,y2) {\
double xxtmp; \
if(x2 < x1) {xxtmp=x1;x1=x2;x2=xxtmp;xxtmp=y1;y1=y2;y2=xxtmp;} \
else if(x2 == x1 && y2 < y1) {xxtmp=y1;y1=y2;y2=xxtmp;} \
}
#define RECTORDER(x1,y1,x2,y2) { \
double xxtmp; \
if(x2 < x1) {xxtmp = x1; x1 = x2; x2 = xxtmp;} \
if(y2 < y1) {xxtmp = y1; y1 = y2; y2 = xxtmp;} \
}
#define OUTSIDE(xa,ya,xb,yb,x1,y1,x2,y2) \
(xa>x2 || xb<x1 || ya>y2 || yb<y1 )
#define LINE_OUTSIDE(xa,ya,xb,yb,x1,y1,x2,y2) \
(xa>=x2 || xb<=x1 || ( (ya<yb)? (ya>=y2 || yb<=y1) : (yb>=y2 || ya<=y1) ) )
#define CLIP(x,a,b) (x<a?a:x>b?b:x)
#define MINOR(a,b) ( (a) <= (b) ? (a) : (b) )
#define ROUND(a) ((a) > 0.0 ? ceil((a) - 0.5) : floor((a) + 0.5))
#define X_TO_SCREEN(x) ( floor((x+xorigin)* mooz) )
#define Y_TO_SCREEN(y) ( floor((y+yorigin)* mooz) )
#define X_TO_XSCHEM(x) ((x)*zoom -xorigin)
#define Y_TO_XSCHEM(y) ((y)*zoom -yorigin)
typedef struct
{
unsigned short type;
int n;
unsigned short col;
} Selected;
typedef struct
{
double x1;
double x2;
double y1;
double y2;
short end1;
short end2;
short sel;
char *node;
char *prop_ptr;
int bus; /* 20171201 cache here wire "bus" property, to avoid too many get_tok_value() calls */
} Wire;
typedef struct
{
double x1;
double x2;
double y1;
double y2;
unsigned short sel;
char *prop_ptr;
int dash;
} Line;
typedef struct
{
double x1;
double x2;
double y1;
double y2;
unsigned short sel;
char *prop_ptr;
int dash;
} Box;
typedef struct /* 20171115 */
{
/* last point coincident to first, added by program if needed. */
/* XDrawLines needs first and last point to close the polygon */
int points;
double *x;
double *y;
unsigned short *selected_point;
unsigned short sel;
char *prop_ptr;
int fill; /* 20180914 */
int dash;
} xPolygon;
typedef struct /* 20181012 */
{
double x;
double y;
double r;
double a; /* start angle */
double b; /* arc angle */
unsigned short sel;
char *prop_ptr;
int fill;
int dash;
} xArc;
typedef struct
{
char *txt_ptr;
double x0,y0;
int rot;
int flip;
int sel;
double xscale;
double yscale;
char *prop_ptr;
int layer; /* 20171201 for cairo */
int hcenter, vcenter;
char *font; /* 20171201 for cairo */
} Text;
typedef struct
{
char *name;
double minx;
double maxx;
double miny;
double maxy;
Line **lineptr; /* array of [cadlayers] pointers to Line */
Box **boxptr;
xPolygon **polygonptr; /* 20171115 */
xArc **arcptr; /* 20181012 */
Text *txtptr;
int *lines; /* array of [cadlayers] integers */
int *rects;
int *polygons; /* 20171115 */
int *arcs; /* 20181012 */
int texts;
char *prop_ptr;
char *type; /* 20150409 */
char *templ; /* 20150409 */
unsigned int flags; /* currently only used for embedded symbols (EMBEDDED) */
} Instdef;
typedef struct
{
char *name;/* symbol name (ex: devices/lab_pin) */
int ptr; /* was a pointer formerly... */
double x0; /* symbol origin / anchor point */
double y0;
double x1; /* symbol bounding box */
double y1;
double x2;
double y2;
double xx1; /* bounding box without texts */
double yy1;
double xx2;
double yy2;
int rot;
int flip;
int sel;
int flags; /* bit 0: skip field, bit 1: flag for different textlayer for pin/labels
* bit 2 : hilight flag.
*/
char *prop_ptr;
char **node;
char *instname; /* 20150409 instance name (example: I23) */
} Instance;
struct Lcc { /* used for symbols containing schematics as instances (LCC, Local Custom Cell) */
double x0;
double y0;
int rot;
int flip;
FILE *fd;
char *prop_ptr;
char *symname;
};
typedef struct
{
double x;
double y;
double zoom;
} Zoom;
struct drivers {
int in;
int out;
int inout;
int port;
};
/* instance name (refdes) hash table, for unique name checking */
struct hashentry {
struct hashentry *next;
unsigned int hash;
char *token;
char *value;
};
struct int_hashentry { /* 20180104 */
struct int_hashentry *next;
unsigned int token;
};
struct node_hashentry {
struct node_hashentry *next;
unsigned int hash;
char *token;
char *sig_type;
char *verilog_type;
char *value;
char *class;
char *orig_tok;
struct drivers d;
};
struct hilight_hashentry {
struct hilight_hashentry *next;
unsigned int hash;
char *token;
char *path; /* hierarchy path */
int value; /* hilight color */
};
/* for netlist.c */
struct instpinentry {
struct instpinentry *next;
double x0,y0;
int n;
int pin;
};
struct wireentry {
struct wireentry *next;
int n;
};
struct instentry {
struct instentry *next;
int n;
};
extern int help; /* 20140406 */
extern char *cad_icon[];
extern int semaphore;
extern int a3page;
extern int manhattan_lines;
extern int cadlayers;
extern int *active_layer;
extern int *enable_layer;
extern int n_active_layers;
extern int hilight_color;
extern int do_print;
extern int prepared_netlist_structs;
extern int prepared_hilight_structs;
extern int prepared_hash_instances;
extern int prepared_hash_wires;
extern int has_x;
extern int no_draw;
extern int sym_txt;
extern int event_reporting;
extern int rainbow_colors;
extern FILE *errfp;
extern int no_readline;
extern char *filename;
extern char home_dir[PATH_MAX]; /* home dir obtained via getpwuid */
extern char user_conf_dir[PATH_MAX]; /* usually ~/.xschem */
extern char pwd_dir[PATH_MAX]; /* obtained via getcwd() */
extern int load_initfile;
extern char rcfile[PATH_MAX];
extern char *tcl_command;
extern char tcl_script[PATH_MAX];
extern char plotfile[PATH_MAX];
extern int persistent_command;
extern int disable_unique_names;
extern int tcp_port;
extern int debug_var;
extern char **color_array;
extern Colormap colormap;
extern int current_type;
extern char current_name[PATH_MAX];
extern unsigned int color_index[];
extern int lw; /* line width */
extern int bus_width; /* line width */
extern double lw_double; /* line width */
extern int change_lw; /* allow change line width */
extern int thin_text;
extern int incr_hilight;
extern int auto_hilight;
extern int fill; /* fill rectangles */
extern int draw_grid;
extern double cadgrid;
extern double cadhalfdotsize;
extern int draw_pixmap; /* pixmap used as 2nd buffer */
extern int draw_window; /* 20181009 */
extern int need_rebuild_selected_array;
extern unsigned int rectcolor;
extern XEvent xev;
extern KeySym key;
extern unsigned short enable_stretch;
extern unsigned int button;
extern unsigned int state; /* status of shift,ctrl etc.. */
extern Wire *wire;
extern Box **rect;
extern xPolygon **polygon; /* 20171115 */
extern xArc **arc; /* 20181012 */
extern Line **line;
extern XPoint *gridpoint;
extern XRectangle *rectangle;
extern Selected *selectedgroup; /* array of selected objs to draw while moving */
extern int lastwire;
extern int lastselected;
extern int *lastrect;
extern int *lastpolygon; /* 20171115 */
extern int *lastarc; /* 20181012 */
extern int *lastline;
extern int lastinst ;
extern int lastinstdef ;
extern int lasttext;
extern Instance *inst_ptr; /* Pointer to element INSTANCE */
extern Instdef *instdef; /* Pointer to element definition */
extern Text *textelement;
extern char schematic[CADMAXHIER][PATH_MAX];
extern int currentsch;
extern char *schtedaxprop;
extern char *schprop;
extern char *schvhdlprop;
extern char *schsymbolprop;
extern char *xschem_version_string;
extern char file_version[100];
extern char *schverilogprop;
extern int max_texts;
extern int max_wires;
extern int max_instances;
extern int max_symbols;
extern int max_selected;
extern int *max_rects;
extern int *max_polygons; /* 20171115 */
extern int *max_arcs; /* 20181012 */
extern int *max_lines;
extern int previous_instance[];
extern int split_files;
extern char *netlist_dir;
extern char user_top_netl_name[PATH_MAX];
extern char bus_replacement_char[];
extern void set_modify(int mod);
extern unsigned long ui_state ; /* this signals that we are doing a net place, */
/* panning etc... */
extern char *undo_dirname; /* 20150327 */
extern int cur_undo_ptr;
extern int tail_undo_ptr;
extern int head_undo_ptr;
extern int max_undo;
extern int draw_dots;
extern int draw_single_layer; /* 20151117 */
extern int check_version;
extern int yyparse_error;
extern void enable_layers(void);
extern Window window;
extern Window pre_window;
extern Window parent_of_topwindow;
extern char *xschem_executable;
extern Pixmap cad_icon_pixmap, *pixmap,save_pixmap;
extern int depth;
extern int *fill_type; /* 20171117 for every layer: 0: no fill, 1, solid fill, 2: stipple fill */
extern unsigned char **pixdata;
extern unsigned char pixdata_init[22][32];
extern int areax1,areay1,areax2,areay2,areaw,areah;
extern GC *gc, *gcstipple, gctiled;
extern Display *display;
extern Tcl_Interp *interp;
extern XRectangle xrect[];
extern int xschem_h, xschem_w; /* 20171130 window size */
extern double xorigin,yorigin;
extern double zoom;
extern double mooz;
extern double mousex,mousey; /* mouse coord. */
extern double mousex_snap,mousey_snap; /* mouse coord. snapped to grid */
extern double cadsnap;
extern int horizontal_move; /* 20171023 */
extern int vertical_move; /* 20171023 */
extern void set_snap(double); /* 20161212 */
extern void set_grid(double); /* 20161212 */
extern double *character[256];
extern int netlist_show;
extern int flat_netlist;
extern int netlist_type;
extern int do_netlist;
extern int do_simulation;
extern int do_waves;
extern int netlist_count;
extern int top_subckt;
extern int spiceprefix;
extern int quit;
extern int show_erc;
extern int hilight_nets;
extern void create_plot_cmd(int viewer);
extern char *sch_path[];
extern int sch_inst_number[CADMAXHIER];
extern int modified;
extern int color_ps;
extern int only_probes; /* 20110112 */
extern Zoom zoom_array[];
extern int pending_fullzoom;
extern int fullscreen;
extern int unzoom_nodrift;
extern XColor xcolor_array[];/* 20171109 */
extern Visual *visual;
extern int dark_colorscheme; /* 20171113 */
extern double color_dim;
extern int no_undo; /* 20171204 */
extern int enable_drill;
extern struct wireentry *wiretable[NBOXES][NBOXES];
extern struct instpinentry *instpintable[NBOXES][NBOXES];
extern double mx_double_save, my_double_save; /* 20070322 */
extern struct instentry *insttable[NBOXES][NBOXES];
extern size_t get_tok_value_size;
extern size_t get_tok_size;
extern int batch_mode; /* no TCL console */
extern int hide_symbols; /* draw only a bounding box for component instances and @symname, @name texts */
/* functions */
extern void dbg(int level, char *fmt, ...);
extern void here(void);
extern void print_version(void);
extern int set_netlist_dir(int force, char *dir);
extern void netlist_options(int i);
extern int check_lib(char * s);
extern void select_all(void);
extern void change_linewidth(double w);
extern void set_fill(int n);
extern void schematic_in_new_window(void);
extern void symbol_in_new_window(void);
extern void new_window(const char *cell, int symbol);
extern void ask_new_file(void);
extern void saveas(const char *f);
extern const char *get_file_path(char *f);
extern int save(int confirm);
extern struct hilight_hashentry *bus_hilight_lookup(const char *token, int value, int remove) ;
extern int name_strcmp(char *s, char *d) ;
extern int search(const char *tok, const char *val, int sub, int sel, int what);
extern int process_options(int argc, char **argv);
extern void calc_drawing_bbox(Box *boundbox, int selected);
extern void ps_draw(void);
extern void svg_draw(void);
extern void print_image();
extern const char *skip_dir(const char *str);
extern const char *get_cell(const char *str, int no_of_dir);
extern const char *get_cell_w_ext(const char *str, int no_of_dir);
extern const char *rel_sym_path(const char *s);
extern const char *abs_sym_path(const char *s, const char *ext);
extern const char *add_ext(const char *f, const char *ext);
extern void make_symbol(void);
extern const char *get_sym_template(char *s, char *extra);
extern void zoom_full(int draw, int sel);
extern void updatebbox(int count,Box *boundbox,Box *tmp);
extern void draw_selection(GC g, int interruptable);
extern void delete(void);
extern void delete_only_rect_line_arc_poly(void);
extern void polygon_bbox(double *x, double *y, int points, double *bx1, double *by1, double *bx2, double *by2);
extern void arc_bbox(double x, double y, double r, double a, double b, double *bx1, double *by1, double *bx2, double *by2);
extern void bbox(int what,double x1,double y1, double x2, double y2);
extern int set_text_custom_font(Text *txt);
extern int text_bbox(const char * str,double xscale, double yscale,
int rot, int flip, int hcenter, int vcenter, double x1,double y1, double *rx1, double *ry1,
double *rx2, double *ry2);
extern void hash_inst(int what, int n);
extern void hash_inst_pin(int what, int i, int j);
extern void del_inst_table(void);
extern void hash_wires(void);
extern void hash_wire(int what, int n);
extern void hash_instances(void); /* 20171203 insert instance bbox in spatial hash table */
extern struct int_hashentry *int_hash_lookup(struct int_hashentry **table, int token, int remove); /* 20180104 */
extern void free_int_hash(struct int_hashentry **table); /* 20180104 */
#ifdef HAS_CAIRO
extern int text_bbox_nocairo(const char * str,double xscale, double yscale,
int rot, int flip, int hcenter, int vcenter, double x1,double y1, double *rx1, double *ry1,
double *rx2, double *ry2);
#endif
extern unsigned short select_object(double mx,double my, unsigned short sel_mode,
int override_lock); /* return type 20160503 */
extern void unselect_all(void);
extern void select_inside(double x1,double y1, double x2, double y2, int sel);
extern void xwin_exit(void);
extern int Tcl_AppInit(Tcl_Interp *interp);
extern int source_tcl_file(char *s);
extern int callback(int event, int mx, int my, KeySym key,
int button, int aux, int state);
extern void resetwin(void);
extern void find_closest_net(double mx,double my);
extern void find_closest_box(double mx,double my);
extern void find_closest_arc(double mx,double my);
extern void find_closest_element(double mx,double my);
extern void find_closest_line(double mx,double my);
extern void find_closest_polygon(double mx,double my);/* 20171115 */
extern void find_closest_text(double mx,double my);
extern Selected find_closest_obj(double mx,double my);
extern void find_closest_net_or_symbol_pin(double mx,double my, double *x, double *y);
extern void drawline(int c, int what, double x1,double y1,double x2,double y2, int dash);
extern void draw_string(int layer,int what, const char *str, int rot, int flip, int hcenter, int vcenter,
double x1, double y1, double xscale, double yscale);
extern void draw_symbol(int what,int c, int n,int layer,
int tmp_flip, int tmp_rot, double xoffset, double yoffset);
extern void drawrect(int c, int what, double rectx1,double recty1,
double rectx2,double recty2, int dash);
extern void filledrect(int c, int what, double rectx1,double recty1,
double rectx2,double recty2);
extern void drawtempline(GC gc, int what, double x1,double y1,double x2,double y2);
extern void drawgrid(void);
extern void drawtemprect(GC gc, int what, double rectx1,double recty1,
double rectx2,double recty2);
extern void drawtemparc(GC gc, int what, double x, double y, double r, double a, double b);
extern void drawarc(int c, int what, double x, double y, double r, double a, double b, int arc_fill, int dash);
extern void filledarc(int c, int what, double x, double y, double r, double a, double b);
extern void drawtemppolygon(GC gc, int what, double *x, double *y, int points);
extern void drawpolygon(int c, int what, double *x, double *y, int points, int poly_fill, int dash);
extern void draw_temp_symbol(int what, GC gc, int n,int layer,
int tmp_flip, int tmp_rot, double xoffset, double yoffset);
extern void draw_temp_string(GC gc,int what, const char *str, int rot, int flip, int hcenter, int vcenter,
double x1, double y1, double xscale, double yscale);
extern void draw(void);
extern int clip( double*,double*,double*,double*);
extern int textclip(int x1,int y1,int x2,int y2,
double xa,double ya,double xb,double yb);
extern double dist_from_rect(double mx,
double my, double x1, double y1, double x2, double y2);
extern double dist(double x1,double y1,double x2,double y2,double xa,double ya);
extern double rectdist(double x1,double y1,double x2,double y2,double xa,double ya);
extern int touch(double,double,double,double,double,double);
extern int rectclip(int,int,int,int,
double*,double*,double*,double*);
extern void trim_wires(void);
extern void update_conn_cues(int draw_cues, int dr_win);
extern void break_wires_at_pins(void);
extern void check_touch(int i, int j,
unsigned short *parallel,unsigned short *breaks,
unsigned short *broken,unsigned short *touches,
unsigned short *included, unsigned short *includes,
double *xt, double *yt);
extern void storeobject(int pos, double x1,double y1,double x2,double y2,
unsigned short type,unsigned int rectcolor,
unsigned short sel, const char *prop_ptr);
extern void store_polygon(int pos, double *x, double *y, int points, /* 20171115 */
unsigned int rectcolor, unsigned short sel, char *prop_ptr);
extern void store_arc(int pos, double x, double y, double r, double a, double b,
unsigned int rectcolor, unsigned short sel, char *prop_ptr);
extern void freenet_nocheck(int i);
extern void spice_netlist(FILE *fd, int spice_stop);
extern void tedax_netlist(FILE *fd, int spice_stop);
extern void global_spice_netlist(int global);
extern void global_tedax_netlist(int global);
extern void vhdl_netlist(FILE *fd, int vhdl_stop);
extern void global_vhdl_netlist(int global);
extern void verilog_netlist(FILE *fd, int verilog_stop);
extern void global_verilog_netlist(int global);
extern void vhdl_block_netlist(FILE *fd, int i);
extern void verilog_block_netlist(FILE *fd, int i);
extern void spice_block_netlist(FILE *fd, int i);
extern void tedax_block_netlist(FILE *fd, int i);
extern void remove_symbols(void);
extern void remove_symbol(int i);
extern void clear_drawing(void);
extern int load_sym_def(const char name[], FILE *embed_fd);
extern void descend_symbol(void);
extern int place_symbol(int pos, const char *symbol_name, double x, double y, int rot, int flip,
const char *inst_props, int draw_sym, int first_call);
extern void attach_labels_to_inst(void);
extern int sym_vs_sch_pins(void);
extern int match_symbol(const char name[]);
extern int save_schematic(const char *); /* 20171020 added return value */
extern void push_undo(void);
extern void pop_undo(int redo);
extern void delete_undo(void);
extern void clear_undo(void);
extern void load_schematic(int load_symbol, const char *abs_name, int reset_undo);
extern void link_symbols_to_instances(void);
extern void load_ascii_string(char **ptr, FILE *fd);
extern void read_xschem_file(FILE *fd); /* 20180912 */
extern char *read_line(FILE *fp, int dbg_level);
extern void read_record(int firstchar, FILE *fp);
extern void create_sch_from_sym(void);
extern void descend_schematic(void);
extern void go_back(int confirm);
extern void view_unzoom(double z);
extern void view_zoom(double z);
extern void draw_stuff(void);
extern void new_wire(int what, double mx_snap, double my_snap);
extern void new_line(int what);
extern void new_arc(int what, double sweep);
extern void arc_3_points(double x1, double y1, double x2, double y2, double x3, double y3,
double *x, double *y, double *r, double *a, double *b);
extern void move_objects(int what,int merge, double dx, double dy);
extern void copy_objects(int what);
extern void pan(int what);
extern void pan2(int what, int mx, int my);
extern void zoom_box(int what);
extern void select_rect(int what, int select);
extern void new_rect(int what);
extern void new_polygon(int what); /* 20171115 */
extern void compile_font(void);
extern void rebuild_selected_array(void);
extern void edit_property(int x);
extern int xschem(ClientData clientdata, Tcl_Interp *interp,
int argc, const char * argv[]);
extern void tcleval(const char str[]);
extern const char *tclresult(void);
extern const char *tclgetvar(const char *s);
extern void tclsetvar(const char *s, const char *value);
extern void statusmsg(char str[],int n);
extern void place_text(int draw_text, double mx, double my);
extern void init_inst_iterator(double x1, double y1, double x2, double y2);
extern struct instentry *inst_iterator_next();
extern void init_wire_iterator(double x1, double y1, double x2, double y2);
extern struct wireentry *wire_iterator_next();
extern void check_unique_names(int rename);
extern void clear_instance_hash();
extern void free_hash(struct hashentry **table);
extern struct hashentry *hash_lookup(struct hashentry **table, const char *token, const char *value, int what);
extern const char *find_nth(const char *str, char sep, int n);
extern int isonlydigit(const char *s);
extern const char *translate(int inst, char* s);
extern const char* translate2(struct Lcc *lcc, int level, char* s);
extern void print_tedax_element(FILE *fd, int inst);
extern void print_spice_element(FILE *fd, int inst);
extern void print_spice_subckt(FILE *fd, int symbol);
extern void print_vhdl_element(FILE *fd, int inst);
extern void print_verilog_element(FILE *fd, int inst);
extern void print_verilog_primitive(FILE *fd, int inst);
extern void print_vhdl_primitive(FILE *fd, int inst);
extern const char *get_tok_value(const char *s,const char *tok,int with_quotes);
extern const char *list_tokens(const char *s, int with_quotes);
extern int my_snprintf(char *str, int size, const char *fmt, ...);
extern size_t my_strdup(int id, char **dest, const char *src);
extern void my_strndup(int id, char **dest, const char *src, int n);
extern size_t my_strdup2(int id, char **dest, const char *src);
extern char *my_strtok_r(char *str, const char *delim, char **saveptr);
extern int my_strncpy(char *d, const char *s, int n);
extern char* strtolower(char* s);
extern char* strtoupper(char* s);
extern void *my_malloc(int id, size_t size);
extern void my_realloc(int id, void *ptr,size_t size);
extern void *my_calloc(int id, size_t nmemb, size_t size);
extern void my_free(int id, void *ptr);
extern size_t my_strcat(int id, char **, const char *);
extern const char *subst_token(const char *s, const char *tok, const char *new_val);
extern void new_prop_string(int i, const char *old_prop,int fast, int disable_unique_names);
extern void hash_name(char *token, int remove);
extern void hash_all_names(int n);
extern void symbol_bbox(int i, double *x1,double *y1, double *x2, double *y2);
extern char *escape_chars(char *dest, const char *source, int size);
extern void set_inst_prop(int i);
extern void unselect_wire(int i);
extern void select_connected_nets(void);
extern void check_wire_storage(void);
extern void check_text_storage(void);
extern void check_inst_storage(void);
extern void check_symbol_storage(void);
extern void check_selected_storage(void);
extern void check_box_storage(int c);
extern void check_arc_storage(int c);
extern void check_line_storage(int c);
extern void check_polygon_storage(int c); /* 20171115 */
extern const char *expandlabel(const char *s, int *m);
extern void clear_expandlabel_data(void);
extern void merge_inst(int k, FILE *fd);
extern void merge_file(int selection_load, const char ext[]);
extern void select_wire(int i, unsigned short select_mode, int fast);
extern void select_element(int i, unsigned short select_mode, int fast, int override_lock);
extern void select_text(int i, unsigned short select_mode, int fast);
extern void select_box(int c, int i, unsigned short select_mode, int fast);
extern void select_arc(int c, int i, unsigned short select_mode, int fast);
extern void select_line(int c, int i, unsigned short select_mode, int fast);
extern void select_polygon(int c, int i, unsigned short select_mode, int fast );
extern const char *pin_node(int i, int j, int *mult, int hash_prefix_unnamed_net);
extern int record_global_node(int what, FILE *fp, char *node);
extern int count_labels(char *s);
extern int get_unnamed_node(int what, int mult, int node);
extern void free_node_hash(void);
extern struct node_hashentry
*node_hash_lookup(const char *token, const char *dir,int remove, int port, char *sig_type,
char *verilog_type, char *value, char *class, const char *orig_tok);
extern void traverse_node_hash();
extern struct node_hashentry
*bus_hash_lookup(const char *token, const char *dir,int remove, int port, char *sig_type,
char *verilog_type, char *value, char *class);
/* extern void insert_missing_pin(); */
extern void round_schematic_to_grid(double cadsnap);
extern void save_selection(int what);
extern void print_vhdl_signals(FILE *fd);
extern void print_verilog_signals(FILE *fd);
extern void print_generic(FILE *fd, char *ent_or_comp, int symbol);
extern void print_verilog_param(FILE *fd, int symbol);
extern void hilight_net(int to_waveform);
extern void unhilight_net();
extern void draw_hilight_net(int on_window);
extern void redraw_hilights(void);
extern void prepare_netlist_structs(int for_netlist);
extern void delete_netlist_structs(void);
extern void delete_inst_node(int i);
extern void delete_hilight_net(void);
extern void hilight_child_pins(void);
extern void hilight_parent_pins(void);
extern struct node_hashentry **get_node_table_ptr(void);
extern void change_elem_order(void);
extern int set_different_token(char **s,const char *new, const char *old, int object, int n);
extern void print_hilight_net(int show);
extern void change_layer();
extern void launcher(); /* 20161102 */
extern void windowid();
extern void preview_window(const char *what, const char *tk_win_path, const char *filename);
extern int window_state (Display *disp, Window win, char *arg);
extern void toggle_fullscreen();
extern void toggle_only_probes(); /* 20110112 */
extern void update_symbol(const char *result, int x);
extern void tclexit(ClientData s);
extern int build_colors(double dim); /* reparse the TCL 'colors' list and reassign colors 20171113 */
extern void drill_hilight(void);
extern void get_square(double x, double y, int *xx, int *yy);
extern void del_wire_table(void); /* 20180917 */
extern void del_object_table(void); /* 20180917 */
extern const char *random_string(const char *prefix);
extern const char *create_tmpdir(char *prefix);
extern FILE *open_tmpfile(char *prefix, char **filename);
extern void child_handler(int signum);
extern char cairo_font_name[1024]; /* should be monospaced */
extern int cairo_longest_line;
extern int cairo_lines;
extern double cairo_font_scale; /* default: 1.0, allows to adjust font size */
extern double nocairo_font_xscale;
extern double nocairo_font_yscale;
extern double cairo_font_line_spacing; /* allows to change line spacing: default: 1.0 */
extern double cairo_vert_correct;
extern double nocairo_vert_correct;
#ifdef HAS_CAIRO /* 20171105 */
#include <cairo.h>
#include <cairo-xlib.h>
#include "cairo-xlib-xrender.h"
# if HAS_XCB==1
# include <X11/Xlib-xcb.h> /* 20171125 */
# include <cairo-xcb.h>
extern xcb_connection_t *xcbconn; /* 20171125 */
extern xcb_screen_t *screen_xcb;
extern xcb_render_pictforminfo_t format_rgb, format_rgba;
extern xcb_visualtype_t *visual_xcb;
# endif /* HAS_XCB */
extern cairo_surface_t *sfc, *save_sfc;
extern cairo_t *ctx, *save_ctx;
extern XRenderPictFormat *format;
#endif /* HAS_CAIRO */
#endif
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