gdchart.h

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/* GDCHART 0.94b  GDCHART.H  12 Nov 1998 */

#ifndef _GDCHART_H
#define _GDCHART_H

#ifndef _GDC_H
#include "gdc.h"
#endif

#define MAX_NOTE_LEN            19

typedef enum {
                         GDC_LINE,
                         GDC_AREA,
                         GDC_BAR,
                         GDC_HILOCLOSE,
                         GDC_COMBO_LINE_BAR,                    /* aka, VOL[ume] */
                         GDC_COMBO_HLC_BAR,
                         GDC_COMBO_LINE_AREA,
                         GDC_COMBO_HLC_AREA,
                         GDC_3DHILOCLOSE,
                         GDC_3DCOMBO_LINE_BAR,
                         GDC_3DCOMBO_LINE_AREA,
                         GDC_3DCOMBO_HLC_BAR,
                         GDC_3DCOMBO_HLC_AREA,
                         GDC_3DBAR,
                         GDC_3DAREA,
                         GDC_3DLINE
                         } GDC_CHART_T;

typedef enum {
                         GDC_STACK_DEPTH,                               /* "behind" (even non-3D) */
                         GDC_STACK_SUM,
                         GDC_STACK_BESIDE,
                         GDC_STACK_LAYER
                         } GDC_STACK_T;                                 /* applies only to num_lines > 1 */

typedef enum {
                         GDC_HLC_DIAMOND         = 1,
                         GDC_HLC_CLOSE_CONNECTED = 2,   /* can't be used w/ CONNECTING */
                         GDC_HLC_CONNECTING      = 4,   /* can't be used w/ CLOSE_CONNECTED */
                         GDC_HLC_I_CAP           = 8
                         } GDC_HLC_STYLE_T;                             /* can be OR'd */

                                                                                        /* only 1 annotation allowed */
typedef struct
                        {
                        float                   point;                  /* 0 <= point < num_points */
                        unsigned long   color;
                        char                    note[MAX_NOTE_LEN+1];   /* NLs ok here */
                        } GDC_ANNOTATION_T;

typedef enum {
                         GDC_SCATTER_TRIANGLE_DOWN,
                         GDC_SCATTER_TRIANGLE_UP
                         } GDC_SCATTER_IND_T;
typedef struct
                        {
                        float                           point;          /* 0 <= point < num_points */
                        float                           val;
                        unsigned short          width;          /* % (1-100) */
                        unsigned long           color;
                        GDC_SCATTER_IND_T       ind;
                        } GDC_SCATTER_T;

/****************************************************/
/********** USER CHART OPTIONS w/ defaults **********/
/****************************************************/
#define EXTERND extern
EXTERND char                            *GDC_ytitle;
EXTERND char                            *GDC_xtitle;
EXTERND char                            *GDC_ytitle2;           /* ostesibly: volume label */
EXTERND char                            *GDC_title;                     /* NLs ok here */
EXTERND enum GDC_font_size      GDC_title_size          DEFAULTO( GDC_MEDBOLD );
EXTERND enum GDC_font_size      GDC_ytitle_size         DEFAULTO( GDC_MEDBOLD );
EXTERND enum GDC_font_size      GDC_xtitle_size         DEFAULTO( GDC_MEDBOLD );
EXTERND enum GDC_font_size      GDC_yaxisfont_size      DEFAULTO( GDC_SMALL );
EXTERND enum GDC_font_size      GDC_xaxisfont_size      DEFAULTO( GDC_SMALL );
EXTERND char                            *GDC_ylabel_fmt         DEFAULTO( NULL );               /* printf fmt'ing, e.g.: "%.2f" */
EXTERND char                            *GDC_ylabel2_fmt        DEFAULTO( NULL );               /* default: "%.0f" future: fractions */
EXTERND short                           GDC_xlabel_spacing      DEFAULTO( 5 );                  /* pixels  MAXSHORT means force all */
EXTERND char                            GDC_ylabel_density      DEFAULTO( 80 );                 /* % */
EXTERND float                           GDC_requested_ymin      DEFAULTO( 0 );
EXTERND float                           GDC_requested_ymax      DEFAULTO( 0 );
EXTERND float                           GDC_requested_yinterval DEFAULTO( 0 );
EXTERND char                            GDC_0Shelf                      DEFAULTO( TRUE );               /* if applicable */
EXTERND char                            GDC_grid                        DEFAULTO( TRUE );
EXTERND char                            GDC_xaxis                       DEFAULTO( TRUE );
EXTERND char                            GDC_yaxis                       DEFAULTO( TRUE );
EXTERND char                            GDC_yaxis2                      DEFAULTO( TRUE );
EXTERND char                            GDC_yval_style          DEFAULTO( TRUE );
EXTERND GDC_STACK_T                     GDC_stack_type          DEFAULTO( GDC_STACK_DEPTH );
EXTERND float                           GDC_3d_depth            DEFAULTO( 5.0 );                /* % gif size */
EXTERND unsigned char           GDC_3d_angle            DEFAULTO( 45 );                 /* 1-89 */
EXTERND unsigned char           GDC_bar_width           DEFAULTO( 75 );                 /* % (1-100) */
EXTERND GDC_HLC_STYLE_T         GDC_HLC_style           DEFAULTO( GDC_HLC_CLOSE_CONNECTED );
EXTERND unsigned char           GDC_HLC_cap_width       DEFAULTO( 25 );                 /* % (1-100) */
EXTERND GDC_ANNOTATION_T        *GDC_annotation         DEFAULTO( (GDC_ANNOTATION_T*)NULL );
EXTERND enum GDC_font_size      GDC_annotation_font     DEFAULTO( GDC_SMALL );
EXTERND int                                     GDC_num_scatter_pts     DEFAULTO( 0 );
EXTERND GDC_SCATTER_T           *GDC_scatter            DEFAULTO( (GDC_SCATTER_T*)NULL );
EXTERND char                            GDC_thumbnail           DEFAULTO( FALSE );
EXTERND char                            *GDC_thumblabel;
// No estaba definidio MAXFLOAT
EXTERND float                           GDC_thumbval            DEFAULTO( -100000 );
EXTERND char                            GDC_border                      DEFAULTO( TRUE );
EXTERND unsigned long           GDC_BGColor                     DEFAULTO( 0x000000L );   /* black */
EXTERND unsigned long           GDC_GridColor           DEFAULTO( 0xA0A0A0L );   /* gray */
EXTERND unsigned long           GDC_LineColor           DEFAULTO( GDC_DFLTCOLOR );
EXTERND unsigned long           GDC_PlotColor           DEFAULTO( GDC_DFLTCOLOR );
EXTERND unsigned long           GDC_VolColor            DEFAULTO( 0xA0A0FFL );   /* lgtblue1 */
EXTERND unsigned long           GDC_TitleColor          DEFAULTO( GDC_DFLTCOLOR ); /* "opposite" of BG */
EXTERND unsigned long           GDC_XTitleColor         DEFAULTO( GDC_DFLTCOLOR );
EXTERND unsigned long           GDC_YTitleColor         DEFAULTO( GDC_DFLTCOLOR );
EXTERND unsigned long           GDC_YTitle2Color        DEFAULTO( GDC_DFLTCOLOR );
EXTERND unsigned long           GDC_XLabelColor         DEFAULTO( GDC_DFLTCOLOR );
EXTERND unsigned long           GDC_YLabelColor         DEFAULTO( GDC_DFLTCOLOR );
EXTERND unsigned long           GDC_YLabel2Color        DEFAULTO( GDC_DFLTCOLOR );
                                                        /* supercedes VolColor  ulong_color[num_points] */
EXTERND unsigned long           *GDC_ExtVolColor        DEFAULTO( (unsigned long*)NULL );
                                                        /* supercedes LineColor ulong_color[num_sets] */
EXTERND unsigned long           *GDC_SetColor           DEFAULTO( (unsigned long*)NULL );
                                                        /* supercedes SetColor  ulong_color[num_sets][num_points] */
EXTERND unsigned long           *GDC_ExtColor           DEFAULTO( (unsigned long*)NULL );
EXTERND char                            GDC_transparent_bg      DEFAULTO( FALSE );
EXTERND char                            *GDC_BGImage            DEFAULTO( (char*)NULL );
/* legends?  separate gif? */
/* auto-size fonts, based on GIF size? */

/* ----- following options are for expert users only ----- */
                                                                                                /* for alignment of multiple charts */
                                                                                                /* USE WITH CAUTION! */
EXTERND char                            GDC_hard_size           DEFAULTO( FALSE );
EXTERND int                                     GDC_hard_xorig          DEFAULTO( 0 );                          /* in/out */
EXTERND int                                     GDC_hard_graphwidth     DEFAULTO( 0 );                          /* in/out */
EXTERND int                                     GDC_hard_yorig          DEFAULTO( 0 );                          /* in/out */
EXTERND int                                     GDC_hard_grapheight     DEFAULTO( 0 );                          /* in/out */

/**** COMMON OPTIONS ********************************/
/* NOTE:  common options copy here for reference only! */
/*        they live in gdc.h                           */
#ifndef _GDC_COMMON_OPTIONS
#define _GDC_COMMON_OPTIONS
#define EXTERND extern
/*
EXTERND char                            GDC_generate_gif        DEFAULTO( TRUE );
EXTERND GDC_HOLD_IMAGE_T        GDC_hold_img            DEFAULTO( GDC_DESTROY_IMAGE );
EXTERND void                            *GDC_image                      DEFAULTO( (void*)NULL );
*/
#endif
/****************************************************/

#ifdef GDC_LIB
#define clrallocate( im, rawclr )               _clrallocate( im, rawclr, GDC_BGColor )
#define clrshdallocate( im, rawclr )    _clrshdallocate( im, rawclr, GDC_BGColor )
#endif

int out_graph( short            gifwidth,
                                   short                gifheight,  
                                   FILE                 *gif_fptr,              /* open file pointer (gif out) */
                                   GDC_CHART_T  type,
                                   int                  num_points,             /* points along x axis (even iterval) */
                                   char                 *xlbl[],
                                   int                  num_sets,
                                                                ... );
/* expected params (...) for each chart type:
GDC_LINE
GDC_BAR
GDC_3DBAR
GDC_3DAREA
GDC_AREA                        float   vals[], ...
                                                                                                multiple sets make sense for rest?
GDC_HILOCLOSE           float   high[],
                                        float   low[],
                                        float   close[]

GDC_COMBO_LINE_BAR
GDC_COMBO_LINE_AREA     float   val[],
                                        float   vol[]

GDC_COMBO_HLC_BAR
GDC_COMBO_HLC_AREA      float   high[],
                    float   low[],
                    float   close[],
                                        float   vol[]

*/

/* Notes:
        GDC_thumbnail = TRUE
        is equivelent to:       GDC_grid = FALSE
                                                GDC_xaxis = FALSE
                                                GDC_yaxis = FALSE
*/

#endif 

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