--- /dev/null
+/*
+ * gadgets.h,v 1.1.3.1 2000/05/03 21:47:15 hbb Exp
+ */
+
+/* GNUPLOT - gadgets.h */
+
+/*[
+ * Copyright 2000, 2004 Thomas Williams, Colin Kelley
+ *
+ * Permission to use, copy, and distribute this software and its
+ * documentation for any purpose with or without fee is hereby granted,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation.
+ *
+ * Permission to modify the software is granted, but not the right to
+ * distribute the complete modified source code. Modifications are to
+ * be distributed as patches to the released version. Permission to
+ * distribute binaries produced by compiling modified sources is granted,
+ * provided you
+ * 1. distribute the corresponding source modifications from the
+ * released version in the form of a patch file along with the binaries,
+ * 2. add special version identification to distinguish your version
+ * in addition to the base release version number,
+ * 3. provide your name and address as the primary contact for the
+ * support of your modified version, and
+ * 4. retain our contact information in regard to use of the base
+ * software.
+ * Permission to distribute the released version of the source code along
+ * with corresponding source modifications in the form of a patch file is
+ * granted with same provisions 2 through 4 for binary distributions.
+ *
+ * This software is provided "as is" without express or implied warranty
+ * to the extent permitted by applicable law.
+]*/
+
+#ifndef GNUPLOT_GADGETS_H
+# define GNUPLOT_GADGETS_H
+
+#include "syscfg.h"
+
+#include "term_api.h"
+
+/* Types and variables concerning graphical plot elements that are not
+ * *terminal-specific, are used by both* 2D and 3D plots, and are not
+ * *assignable to any particular * axis. I.e. they belong to neither
+ * *term_api, graphics, graph3d, nor * axis .h files.
+ */
+
+/* #if... / #include / #define collection: */
+
+/* Default point size is taken from the global "pointsize" variable */
+#define PTSZ_DEFAULT (-2)
+#define PTSZ_VARIABLE (-3)
+
+/* Type definitions */
+
+/* Coordinate system specifications: x1/y1, x2/y2, graph-box relative
+ * or screen relative coordinate systems */
+typedef enum position_type {
+ first_axes,
+ second_axes,
+ graph,
+ screen,
+ character
+} position_type;
+
+/* A full 3D position, with all 3 coordinates of different axes,
+ * possibly. Used for 'set label' and 'set arrow' positions: */
+typedef struct position {
+ enum position_type scalex,scaley,scalez;
+ double x,y,z;
+} t_position;
+
+/* Linked list of structures storing 'set label' information */
+typedef struct text_label {
+ struct text_label *next; /* pointer to next label in linked list */
+ int tag; /* identifies the label */
+ t_position place;
+ enum JUSTIFY pos;
+ int rotate;
+ int layer;
+ char *text;
+ char *font; /* Entry font added by DJL */
+ struct t_colorspec textcolor;
+ struct lp_style_type lp_properties;
+ struct position offset;
+ TBOOLEAN noenhanced;
+} text_label;
+
+/* This is the default state for the axis, timestamp, and plot title labels
+ * indicated by tag = -2 */
+#define EMPTY_LABELSTRUCT \
+ {NULL, -2, {character, character, character, 0.0, 0.0, 0.0}, CENTRE, 0, 0, \
+ NULL, NULL, {TC_LT, -2, 0.0}, DEFAULT_LP_STYLE_TYPE, \
+ {character, character, character, 0.0, 0.0, 0.0}, FALSE }
+
+/* Datastructure for implementing 'set arrow' */
+typedef struct arrow_def {
+ struct arrow_def *next; /* pointer to next arrow in linked list */
+ int tag; /* identifies the arrow */
+ t_position start;
+ t_position end;
+ TBOOLEAN relative; /* second coordinate is relative to first */
+ struct arrow_style_type arrow_properties;
+} arrow_def;
+
+#ifdef EAM_OBJECTS
+/* The only object type supported so far is OBJ_RECTANGLE */
+typedef struct rectangle {
+ int type; /* 0 = corners; 1 = center + size */
+ t_position bl; /* bottom left */
+ t_position tr; /* top right */
+ t_position center; /* center */
+ t_position extent; /* width and height */
+} t_rectangle;
+
+/* Datastructure for 'set object' */
+typedef struct object {
+ struct object *next;
+ int tag;
+ int layer; /* behind or back or front */
+ int object_type; /* OBJ_RECTANGLE */
+ fill_style_type fillstyle;
+ lp_style_type lp_properties;
+ union o {t_rectangle rectangle;} o;
+} t_object;
+#define OBJ_RECTANGLE (1)
+#endif
+
+/* Datastructure implementing 'set style line' */
+struct linestyle_def {
+ struct linestyle_def *next; /* pointer to next linestyle in linked list */
+ int tag; /* identifies the linestyle */
+ struct lp_style_type lp_properties;
+};
+
+/* Datastructure implementing 'set style arrow' */
+struct arrowstyle_def {
+ struct arrowstyle_def *next;/* pointer to next arrowstyle in linked list */
+ int tag; /* identifies the arrowstyle */
+ struct arrow_style_type arrow_properties;
+};
+
+/* The stacking direction of the key box: (vertical, horizontal) */
+typedef enum en_key_stack_direction {
+ GPKEY_VERTICAL,
+ GPKEY_HORIZONTAL
+} t_key_stack_direction;
+
+/* The region, with respect to the border, key is located: (inside, outside) */
+typedef enum en_key_region {
+ GPKEY_AUTO_INTERIOR_LRTBC, /* Auto placement, left/right/top/bottom/center */
+ GPKEY_AUTO_EXTERIOR_LRTBC, /* Auto placement, left/right/top/bottom/center */
+ GPKEY_AUTO_EXTERIOR_MARGIN, /* Auto placement, margin plus lrc or tbc */
+ GPKEY_USER_PLACEMENT /* User specified placement */
+} t_key_region;
+
+/* If exterior, there are 12 possible auto placements. Since
+ left/right/center with top/bottom/center can only define 9
+ locations, further subdivide the exterior region into four
+ subregions for which left/right/center (TMARGIN/BMARGIN)
+ and top/bottom/center (LMARGIN/RMARGIN) creates 12 locations. */
+typedef enum en_key_ext_region {
+ GPKEY_TMARGIN,
+ GPKEY_BMARGIN,
+ GPKEY_LMARGIN,
+ GPKEY_RMARGIN
+} t_key_ext_region;
+
+/* Key sample to the left or the right of the plot title? */
+typedef enum en_key_sample_positioning {
+ GPKEY_LEFT,
+ GPKEY_RIGHT
+} t_key_sample_positioning;
+
+typedef struct {
+ int opt_given; /* option given / not given (otherwise default) */
+ int closeto; /* from list FILLEDCURVES_CLOSED, ... */
+ double at; /* value for FILLEDCURVES_AT... */
+ double aty; /* the other value for FILLEDCURVES_ATXY */
+ int oneside; /* -1 if fill below bound only; +1 if fill above bound only */
+} filledcurves_opts;
+#define EMPTY_FILLEDCURVES_OPTS { 0, 0, 0.0, 0.0, 0 }
+
+#ifdef EAM_HISTOGRAMS
+typedef struct histogram_style {
+ int type; /* enum t_histogram_type */
+ int gap; /* set style hist gap <n> (space between clusters) */
+ int clustersize; /* number of datasets in this histogram */
+ double start; /* X-coord of first histogram entry */
+ double end; /* X-coord of last histogram entry */
+ int startcolor; /* LT_UNDEFINED or explicit color for first entry */
+ int startpattern; /* LT_UNDEFINED or explicit pattern for first entry */
+ double bar_lw; /* linewidth for error bars */
+ struct histogram_style *next;
+ struct text_label title;
+} histogram_style;
+typedef enum histogram_type {
+ HT_NONE,
+ HT_STACKED_IN_LAYERS,
+ HT_STACKED_IN_TOWERS,
+ HT_CLUSTERED,
+ HT_ERRORBARS
+} t_histogram_type;
+#define DEFAULT_HISTOGRAM_STYLE { HT_NONE, 2, 1, 0.0, 0.0, LT_UNDEFINED, LT_UNDEFINED, 0, NULL, EMPTY_LABELSTRUCT }
+
+#endif
+
+/***********************************************************/
+/* Variables defined by gadgets.c needed by other modules. */
+/***********************************************************/
+
+
+
+/* EAM Feb 2003 - Move all global variables related to key into a */
+/* single structure. Eventually this will allow multiple keys. */
+
+typedef enum keytitle_type {
+ NOAUTO_KEYTITLES, FILENAME_KEYTITLES, COLUMNHEAD_KEYTITLES
+} keytitle_type;
+
+typedef struct {
+ TBOOLEAN visible; /* Do we show this key at all? */
+ t_key_region region; /* if so: where? */
+ t_key_ext_region margin; /* if exterior: where outside? */
+ struct position user_pos; /* if user specified position, this is it */
+ VERT_JUSTIFY vpos; /* otherwise these guide auto-positioning */
+ JUSTIFY hpos;
+ t_key_sample_positioning just;
+ t_key_stack_direction stack_dir;
+ double swidth; /* 'width' of the linestyle sample line in the key */
+ double vert_factor; /* user specified vertical spacing multiplier */
+ double width_fix; /* user specified additional (+/-) width of key titles */
+ double height_fix;
+ keytitle_type auto_titles; /* auto title curves unless plotted 'with notitle' */
+ TBOOLEAN reverse; /* key back to front */
+ TBOOLEAN invert; /* key top to bottom */
+ TBOOLEAN enhanced; /* enable/disable enhanced text of key titles */
+ struct lp_style_type box; /* linetype of box around key: */
+ char title[MAX_LINE_LEN+1]; /* title line for the key as a whole */
+} legend_key;
+
+extern legend_key keyT;
+
+# define DEFAULT_KEYBOX_LP { 0, LT_NODRAW, 0, 1.0, 1.0, 0 }
+
+#define DEFAULT_KEY_POSITION { graph, graph, graph, 0.9, 0.9, 0. }
+
+#define DEFAULT_KEY_PROPS \
+ { TRUE, \
+ GPKEY_AUTO_INTERIOR_LRTBC, GPKEY_RMARGIN, \
+ DEFAULT_KEY_POSITION, \
+ JUST_TOP, RIGHT, \
+ GPKEY_RIGHT, GPKEY_VERTICAL, \
+ 4.0, 1.0, 0.0, 0.0, \
+ FILENAME_KEYTITLES, \
+ FALSE, FALSE, TRUE, \
+ DEFAULT_KEYBOX_LP, \
+ "" }
+
+/* bounding box position, in terminal coordinates */
+typedef struct {
+ int xleft;
+ int xright;
+ int ybot;
+ int ytop;
+} BoundingBox;
+
+
+/*
+ * EAM Jan 2006 - Move colorbox structure definition to here from color.h
+ * in order to be able to use struct position
+ */
+
+#define SMCOLOR_BOX_NO 'n'
+#define SMCOLOR_BOX_DEFAULT 'd'
+#define SMCOLOR_BOX_USER 'u'
+
+typedef struct {
+ char where;
+ /* where
+ SMCOLOR_BOX_NO .. do not draw the colour box
+ SMCOLOR_BOX_DEFAULT .. draw it at default position and size
+ SMCOLOR_BOX_USER .. draw it at the position given by user
+ */
+ char rotation; /* 'v' or 'h' vertical or horizontal box */
+ char border; /* if non-null, a border will be drawn around the box (default) */
+ int border_lt_tag;
+ int layer; /* front or back */
+ struct position origin;
+ struct position size;
+} color_box_struct;
+
+extern color_box_struct color_box;
+extern color_box_struct default_color_box;
+
+extern BoundingBox plot_bounds; /* Plot Boundary */
+extern BoundingBox canvas; /* Writable area on terminal */
+extern BoundingBox *clip_area; /* Current clipping box */
+
+extern float xsize; /* x scale factor for size */
+extern float ysize; /* y scale factor for size */
+extern float zsize; /* z scale factor for size */
+extern float xoffset; /* x origin setting */
+extern float yoffset; /* y origin setting */
+extern float aspect_ratio; /* 1.0 for square */
+extern int aspect_ratio_3D; /* 2 for equal scaling of x and y; 3 for z also */
+
+/* plot border autosizing overrides, in characters (-1: autosize) */
+extern t_position lmargin, bmargin, rmargin, tmargin;
+#define DEFAULT_MARGIN_POSITION {character, character, character, -1, -1, -1}
+
+extern FILE *table_outfile;
+extern TBOOLEAN table_mode;
+
+extern struct arrow_def *first_arrow;
+
+extern struct text_label *first_label;
+
+extern struct linestyle_def *first_linestyle;
+
+extern struct arrowstyle_def *first_arrowstyle;
+
+#ifdef EAM_OBJECTS
+extern struct object *first_object;
+#endif
+
+extern text_label title;
+
+extern text_label timelabel;
+#ifndef DEFAULT_TIMESTAMP_FORMAT
+/* asctime() format */
+# define DEFAULT_TIMESTAMP_FORMAT "%a %b %d %H:%M:%S %Y"
+#endif
+extern int timelabel_rotate;
+extern int timelabel_bottom;
+
+extern TBOOLEAN polar;
+
+#define ZERO 1e-8 /* default for 'zero' set option */
+extern double zero; /* zero threshold, not 0! */
+
+extern double pointsize;
+
+#define SOUTH 1 /* 0th bit */
+#define WEST 2 /* 1th bit */
+#define NORTH 4 /* 2th bit */
+#define EAST 8 /* 3th bit */
+#define border_east (draw_border & EAST)
+#define border_west (draw_border & WEST)
+#define border_south (draw_border & SOUTH)
+#define border_north (draw_border & NORTH)
+#define border_complete ((draw_border & 15) == 15)
+extern int draw_border;
+extern int border_layer;
+
+extern struct lp_style_type border_lp;
+extern const struct lp_style_type default_border_lp;
+
+extern TBOOLEAN clip_lines1;
+extern TBOOLEAN clip_lines2;
+extern TBOOLEAN clip_points;
+
+#define SAMPLES 100 /* default number of samples for a plot */
+extern int samples_1;
+extern int samples_2;
+
+extern double ang2rad; /* 1 or pi/180 */
+
+extern enum PLOT_STYLE data_style;
+extern enum PLOT_STYLE func_style;
+
+extern TBOOLEAN parametric;
+
+/* If last plot was a 3d one. */
+extern TBOOLEAN is_3d_plot;
+
+/* A macro to check whether 2D functionality is allowed in the last plot:
+ either the plot is a 2D plot, or it is a suitably oriented 3D plot (e.g. map).
+*/
+#define ALMOST2D \
+ ( !is_3d_plot || \
+ ( fabs(fmod(surface_rot_z,90.0))<0.1 \
+ && (surface_rot_x>179.9 || surface_rot_x<0.1) ) )
+
+#ifdef WITH_IMAGE
+extern TBOOLEAN is_cb_plot;
+#endif
+
+/* Plot layer definitions are collected here. */
+/* Someday they might actually be used. */
+#define LAYER_BEHIND -1
+#define LAYER_BACK 0
+#define LAYER_FRONT 1
+#define LAYER_PLOTLABELS 99
+
+/* Functions exported by gadgets.c */
+
+/* moved here from util3d: */
+void draw_clip_line __PROTO((int, int, int, int));
+void draw_clip_arrow __PROTO((int, int, int, int, int));
+int clip_line __PROTO((int *, int *, int *, int *));
+int clip_point __PROTO((unsigned int, unsigned int));
+void clip_put_text __PROTO((unsigned int, unsigned int, char *));
+
+/* moved here from graph3d: */
+void clip_move __PROTO((unsigned int x, unsigned int y));
+void clip_vector __PROTO((unsigned int x, unsigned int y));
+
+/* Common routines for setting line or text color from t_colorspec */
+void apply_pm3dcolor __PROTO((struct t_colorspec *tc, const struct termentry *t));
+void reset_textcolor __PROTO((const struct t_colorspec *tc, const struct termentry *t));
+
+extern fill_style_type default_fillstyle;
+
+#ifdef EAM_OBJECTS
+extern struct object default_rectangle;
+#define DEFAULT_RECTANGLE_STYLE { NULL, -1, 0, OBJ_RECTANGLE, \
+ {FS_SOLID, 100, 0, LT_BLACK}, \
+ {1, LT_BACKGROUND, 0, 1.0, 0.0}, \
+ {{0, {0,0.,0.,0.}, {0,0.,0.,0.}, {0,0.,0.,0.}, {0,0.,0.,0.}}} }
+#endif
+
+/* filledcurves style options set by 'set style [data|func] filledcurves opts' */
+extern filledcurves_opts filledcurves_opts_data;
+extern filledcurves_opts filledcurves_opts_func;
+
+/* Prefer line styles over plain line types */
+extern TBOOLEAN prefer_line_styles;
+
+#ifdef EAM_HISTOGRAMS
+extern histogram_style histogram_opts;
+#endif
+
+void default_arrow_style __PROTO((struct arrow_style_type *arrow));
+
+#ifdef EAM_DATASTRINGS
+void free_labels __PROTO((struct text_label *tl));
+#endif
+
+void get_offsets __PROTO((struct text_label *this_label,
+ struct termentry *t, int *htic, int *vtic));
+void write_label __PROTO((unsigned int x, unsigned int y, struct text_label *label));
+
+#endif /* GNUPLOT_GADGETS_H */
projects / gnuplot / blobdiff