Moved most typedefs etc. from rrd_graph.c to this file

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@47 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/src/rrd_graph.h b/src/rrd_graph.h
new file mode 100644 (file)
index 0000000..ab5a8d1
--- /dev/null
+++ b/src/rrd_graph.h
@@ -0,0 +1,257 @@
+#include "rrd_tool.h"
+#include "rrd_rpncalc.h"
+
+#define MAX_VNAME_LEN 29
+#define DEF_NAM_FMT "%29[_A-Za-z0-9]"
+
+#define ALTYGRID       0x01    /* use alternative y grid algorithm */
+#define ALTAUTOSCALE   0x02    /* use alternative algorithm to find lower and upper bounds */
+#define ALTAUTOSCALE_MAX 0x04  /* use alternative algorithm to find upper bounds */
+#define NOLEGEND       0x08    /* use no legend */
+
+
+enum tmt_en {TMT_SECOND=0,TMT_MINUTE,TMT_HOUR,TMT_DAY,
+            TMT_WEEK,TMT_MONTH,TMT_YEAR};
+
+enum grc_en {GRC_CANVAS=0,GRC_BACK,GRC_SHADEA,GRC_SHADEB,
+            GRC_GRID,GRC_MGRID,GRC_FONT,GRC_FRAME,GRC_ARROW,__GRC_END__};
+
+
+enum gf_en {GF_PRINT=0,GF_GPRINT,GF_COMMENT,GF_HRULE,GF_VRULE,GF_LINE1,
+           GF_LINE2,GF_LINE3,GF_AREA,GF_STACK,GF_TICK,
+           GF_DEF, GF_CDEF, GF_VDEF};
+
+enum if_en {IF_GIF=0,IF_PNG=1};
+
+enum vdef_op_en {
+                VDEF_MAXIMUM   /* like the MAX in (G)PRINT */
+               ,VDEF_MINIMUM   /* like the MIN in (G)PRINT */
+               ,VDEF_AVERAGE   /* like the AVERAGE in (G)PRINT */
+               ,VDEF_PERCENT   /* Nth percentile */
+               ,VDEF_TOTAL     /* average multiplied by time */
+               ,VDEF_FIRST     /* first non-unknown value and time */
+               ,VDEF_LAST      /* last  non-unknown value and time */
+               };
+typedef struct vdef_t {
+    enum vdef_op_en    op;
+    double             param;  /* parameter for function, if applicable */
+    double             val;    /* resulting value */
+    time_t             when;   /* timestamp, if applicable */
+} vdef_t;
+
+typedef struct col_trip_t {
+    int red; /* red = -1 is no color */
+    int green;
+    int blue;
+    int i; /* color index assigned in gif image i=-1 is unasigned*/
+} col_trip_t;
+
+
+typedef struct xlab_t {
+    long         minsec;       /* minimum sec per pix */
+    enum tmt_en  gridtm;       /* grid interval in what ?*/
+    long         gridst;       /* how many whats per grid*/
+    enum tmt_en  mgridtm;      /* label interval in what ?*/
+    long         mgridst;      /* how many whats per label*/
+    enum tmt_en  labtm;        /* label interval in what ?*/
+    long         labst;        /* how many whats per label*/
+    long         precis;       /* label precision -> label placement*/
+    char         *stst;        /* strftime string*/
+} xlab_t;
+
+#if 0
+xlab_t xlab[] = {
+    {0,        TMT_SECOND,30, TMT_MINUTE,5,  TMT_MINUTE,5,         0,"%H:%M"},
+    {2,        TMT_MINUTE,1,  TMT_MINUTE,5,  TMT_MINUTE,5,         0,"%H:%M"},
+    {5,        TMT_MINUTE,2,  TMT_MINUTE,10, TMT_MINUTE,10,        0,"%H:%M"},
+    {10,       TMT_MINUTE,5,  TMT_MINUTE,20, TMT_MINUTE,20,        0,"%H:%M"},
+    {30,       TMT_MINUTE,10, TMT_HOUR,1,    TMT_HOUR,1,           0,"%H:%M"},
+    {60,       TMT_MINUTE,30, TMT_HOUR,2,    TMT_HOUR,2,           0,"%H:%M"},
+    {180,      TMT_HOUR,1,    TMT_HOUR,6,    TMT_HOUR,6,           0,"%H:%M"},
+    /*{300,      TMT_HOUR,3,    TMT_HOUR,12,   TMT_HOUR,12,    12*3600,"%a %p"},  this looks silly*/
+    {600,      TMT_HOUR,6,    TMT_DAY,1,     TMT_DAY,1,      24*3600,"%a"},
+    {1800,     TMT_HOUR,12,   TMT_DAY,1,     TMT_DAY,2,      24*3600,"%a"},
+    {3600,     TMT_DAY,1,     TMT_WEEK,1,     TMT_WEEK,1,    7*24*3600,"Week %W"},
+    {3*3600,   TMT_WEEK,1,      TMT_MONTH,1,     TMT_WEEK,2,    7*24*3600,"Week %W"},
+    {6*3600,   TMT_MONTH,1,   TMT_MONTH,1,   TMT_MONTH,1, 30*24*3600,"%b"},
+    {48*3600,  TMT_MONTH,1,   TMT_MONTH,3,   TMT_MONTH,3, 30*24*3600,"%b"},
+    {10*24*3600, TMT_YEAR,1,  TMT_YEAR,1,    TMT_YEAR,1, 365*24*3600,"%y"},
+    {-1,TMT_MONTH,0,TMT_MONTH,0,TMT_MONTH,0,0,""}
+};
+
+/* sensible logarithmic y label intervals ...
+   the first element of each row defines the possible starting points on the
+   y axis ... the other specify the */
+
+double yloglab[][12]= {{ 1e9, 1,  0,  0,  0,   0,  0,  0,  0,  0,  0,  0 },
+                      {  1e3, 1,  0,  0,  0,   0,  0,  0,  0,  0,  0,  0 },
+                      {  1e1, 1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 },
+                      /* {  1e1, 1,  5,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, */
+                      {  1e1, 1,  2.5,  5,  7.5,  0,  0,  0,  0,  0,  0,  0 },
+                      {  1e1, 1,  2,  4,  6,  8,  0,  0,  0,  0,  0,  0 },
+                      {  1e1, 1,  2,  3,  4,  5,  6,  7,  8,  9,  0,  0 },
+                      {  0,   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }};
+
+#endif
+
+/* sensible y label intervals ...*/
+
+typedef struct ylab_t {
+    double   grid;    /* grid spacing */
+    int      lfac[4]; /* associated label spacing*/
+} ylab_t;
+
+#if 0
+ylab_t ylab[]= {
+    {0.1, {1,2, 5,10}},
+    {0.2, {1,5,10,20}},
+    {0.5, {1,2, 4,10}},
+    {1.0,   {1,2, 5,10}},
+    {2.0,   {1,5,10,20}},
+    {5.0,   {1,2, 4,10}},
+    {10.0,  {1,2, 5,10}},
+    {20.0,  {1,5,10,20}},
+    {50.0,  {1,2, 4,10}},
+    {100.0, {1,2, 5,10}},
+    {200.0, {1,5,10,20}},
+    {500.0, {1,2, 4,10}},
+    {0.0,   {0,0,0,0}}};
+
+
+
+col_trip_t graph_col[] = { /* default colors */
+    {255,255,255,-1},   /* canvas */
+    {245,245,245,-1},   /* background */
+    {200,200,200,-1},   /* shade A    */
+    {150,150,150,-1},   /* shade B    */
+    {140,140,140,-1},      /* grid */
+    {130,30,30,-1},      /* major grid */
+    {0,0,0,-1},         /* font */     
+    {0,0,0,-1},         /* frame */
+    {255,0,0,-1}       /*arrow*/
+};
+
+#endif
+
+/* this structure describes the elements which can make up a graph.
+   because they are quite diverse, not all elements will use all the
+   possible parts of the structure. */
+#ifdef HAVE_SNPRINTF
+#define FMT_LEG_LEN 200
+#else
+#define FMT_LEG_LEN 2000
+#endif
+
+typedef  struct graph_desc_t {
+    enum gf_en     gf;         /* graphing function */
+    char           vname[MAX_VNAME_LEN+1];  /* name of the variable */
+    long           vidx;       /* gdes reference */
+    char           rrd[255];   /* name of the rrd_file containing data */
+    char           ds_nam[DS_NAM_SIZE]; /* data source name */
+    long           ds;         /* data source number */
+    enum cf_en     cf;         /* consolidation function */
+    col_trip_t     col;        /* graph color */
+    char           format[FMT_LEG_LEN+5]; /* format for PRINT AND GPRINT */
+    char           legend[FMT_LEG_LEN+5]; /* legend*/
+    gdPoint        legloc;     /* location of legend */   
+    double         yrule;      /* value for y rule line and for VDEF */
+    time_t         xrule;      /* time for x rule line and for VDEF */
+    vdef_t         vf;         /* instruction for VDEF function */
+    rpnp_t         *rpnp;     /* instructions for CDEF function */
+
+    /* description of data fetched for the graph element */
+    time_t         start,end; /* timestaps for first and last data element */
+    unsigned long  step;      /* time between samples */
+    unsigned long  ds_cnt; /* how many data sources are there in the fetch */
+    long           data_first; /* first pointer to this data */
+    char           **ds_namv; /* name of datasources  in the fetch. */
+    rrd_value_t    *data; /* the raw data drawn from the rrd */
+    rrd_value_t    *p_data; /* processed data, xsize elments */
+
+} graph_desc_t;
+
+typedef struct image_desc_t {
+
+    /* configuration of graph */
+
+    char           graphfile[MAXPATH]; /* filename for graphic */
+    long           xsize,ysize;    /* graph area size in pixels */
+    col_trip_t     graph_col[__GRC_END__]; /* real colors for the graph */   
+    char           ylegend[200];   /* legend along the yaxis */
+    char           title[200];     /* title for graph */
+    int            draw_x_grid;      /* no x-grid at all */
+    int            draw_y_grid;      /* no x-grid at all */
+    xlab_t         xlab_user;      /* user defined labeling for xaxis */
+    char           xlab_form[200]; /* format for the label on the xaxis */
+
+    double         ygridstep;      /* user defined step for y grid */
+    int            ylabfact;       /* every how many y grid shall a label be written ? */
+
+    time_t         start,end;      /* what time does the graph cover */
+    unsigned long           step;           /* any preference for the default step ? */
+    rrd_value_t    minval,maxval;  /* extreme values in the data */
+    int            rigid;          /* do not expand range even with 
+                                     values outside */
+    char*          imginfo;         /* construct an <IMG ... tag and return 
+                                     as first retval */
+    int            lazy;           /* only update the gif if there is reasonable
+                                     probablility that the existing one is out of date */
+    int            logarithmic;    /* scale the yaxis logarithmic */
+    enum if_en     imgformat;         /* image format */
+    
+    /* status information */
+           
+    long           xorigin,yorigin;/* where is (0,0) of the graph */
+    long           xgif,ygif;      /* total size of the gif */
+    int            interlaced;     /* will the graph be interlaced? */
+    double         magfact;        /* numerical magnitude*/
+    long         base;            /* 1000 or 1024 depending on what we graph */
+    char           symbol;         /* magnitude symbol for y-axis */
+    int            unitsexponent;    /* 10*exponent for units on y-asis */
+    int            extra_flags;    /* flags for boolean options */
+    /* data elements */
+
+    long  prt_c;                  /* number of print elements */
+    long  gdes_c;                  /* number of graphics elements */
+    graph_desc_t   *gdes;          /* points to an array of graph elements */
+
+} image_desc_t;
+
+/* Prototypes */
+int xtr(image_desc_t *,time_t);
+int ytr(image_desc_t *, double);
+enum gf_en gf_conv(char *);
+enum if_en if_conv(char *);
+enum tmt_en tmt_conv(char *);
+enum grc_en grc_conv(char *);
+int im_free(image_desc_t *);
+void auto_scale( image_desc_t *,  double *, char **, double *);
+void si_unit( image_desc_t *);
+void expand_range(image_desc_t *);
+void reduce_data( enum cf_en,  unsigned long,  time_t *, time_t *,  unsigned long *,  unsigned long *,  rrd_value_t **);
+int data_fetch( image_desc_t *);
+long find_var(image_desc_t *, char *);
+long find_var_wrapper(void *arg1, char *key);
+long lcd(long *);
+int data_calc( image_desc_t *);
+int data_proc( image_desc_t *);
+time_t find_first_time( time_t,  enum tmt_en,  long);
+time_t find_next_time( time_t,  enum tmt_en,  long);
+void gator( gdImagePtr, int, int);
+int print_calc(image_desc_t *, char ***);
+int leg_place(image_desc_t *);
+int horizontal_grid(gdImagePtr, image_desc_t *);
+int horizontal_log_grid(gdImagePtr, image_desc_t *);
+void vertical_grid( gdImagePtr, image_desc_t *);
+void axis_paint( image_desc_t *, gdImagePtr);
+void grid_paint( image_desc_t *, gdImagePtr);
+gdImagePtr MkLineBrush(image_desc_t *,long, enum gf_en);
+int lazy_check(image_desc_t *);
+int graph_paint(image_desc_t *, char ***);
+int gdes_alloc(image_desc_t *);
+int scan_for_col(char *, int, char *);
+int rrd_graph(int, char **, char ***, int *, int *);
+int bad_format(char *);
+int vdef_parse(struct graph_desc_t *,char *);
+int vdef_calc(image_desc_t *, int);
+int vdef_percent_compar(const void *,const void *);