#ifndef _RRD_GRAPH_H
#define _RRD_GRAPH_H
+#define y0 cairo_y0
+#define y1 cairo_y1
+#define index cairo_index
+
+#include <cairo.h>
+#include <cairo-pdf.h>
+#include <cairo-svg.h>
+#include <cairo-ps.h>
+#include <pango/pangocairo.h>
+
+#ifdef HAVE_LIBGEN_H
+/* for basename */
+# include <libgen.h>
+#endif
+
#include "rrd_tool.h"
#include "rrd_rpncalc.h"
-#include "rrd_gfx.h"
-#define MAX_VNAME_LEN 255
-#define DEF_NAM_FMT "%255[-_A-Za-z0-9]"
+#ifdef WIN32
+# include <windows.h>
+# define MAXPATH MAX_PATH
+#endif
-#define ALTYGRID 0x01 /* use alternative y grid algorithm */
-#define ALTAUTOSCALE 0x02 /* use alternative algorithm to find lower and upper bounds */
-#define ALTAUTOSCALE_MIN 0x04 /* use alternative algorithm to find lower bounds */
-#define ALTAUTOSCALE_MAX 0x08 /* use alternative algorithm to find upper bounds */
-#define NOLEGEND 0x10 /* use no legend */
-#define NOMINOR 0x20 /* Turn off minor gridlines */
+#define ALTYGRID 0x01 /* use alternative y grid algorithm */
+#define ALTAUTOSCALE 0x02 /* use alternative algorithm to find lower and upper bounds */
+#define ALTAUTOSCALE_MIN 0x04 /* use alternative algorithm to find lower bounds */
+#define ALTAUTOSCALE_MAX 0x08 /* use alternative algorithm to find upper bounds */
+#define NOLEGEND 0x10 /* use no legend */
+#define NOMINOR 0x20 /* Turn off minor gridlines */
#define ONLY_GRAPH 0x40 /* use only graph */
-#define FORCE_RULES_LEGEND 0x80 /* force printing of HRULE and VRULE legend */
+#define FORCE_RULES_LEGEND 0x80 /* force printing of HRULE and VRULE legend */
-#define FORCE_UNITS 0x100 /* mask for all FORCE_UNITS_* flags */
-#define FORCE_UNITS_SI 0x100 /* force use of SI units in Y axis (no effect in linear graph, SI instead of E in log graph) */
+#define FORCE_UNITS 0x100 /* mask for all FORCE_UNITS_* flags */
+#define FORCE_UNITS_SI 0x100 /* force use of SI units in Y axis (no effect in linear graph, SI instead of E in log graph) */
-enum tmt_en {TMT_SECOND=0,TMT_MINUTE,TMT_HOUR,TMT_DAY,
- TMT_WEEK,TMT_MONTH,TMT_YEAR};
+#define FULL_SIZE_MODE 0x200 /* -width and -height indicate the total size of the image */
+#define NO_RRDTOOL_TAG 0x400 /* disable the rrdtool tag */
-enum grc_en {GRC_CANVAS=0,GRC_BACK,GRC_SHADEA,GRC_SHADEB,
- GRC_GRID,GRC_MGRID,GRC_FONT,GRC_ARROW,GRC_AXIS,GRC_FRAME,__GRC_END__};
+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_ARROW, GRC_AXIS, GRC_FRAME, __GRC_END__
+};
#define MGRIDWIDTH 0.6
#define GRIDWIDTH 0.4
-enum gf_en {GF_PRINT=0,GF_GPRINT,GF_COMMENT,GF_HRULE,GF_VRULE,GF_LINE,
- GF_AREA,GF_STACK,GF_TICK,
- GF_DEF, GF_CDEF, GF_VDEF, GF_SHIFT,
-#ifdef WITH_PIECHART
- GF_PART,
-#endif
- GF_XPORT};
+enum gf_en { GF_PRINT = 0, GF_GPRINT, GF_COMMENT, GF_HRULE, GF_VRULE, GF_LINE,
+ GF_AREA, GF_STACK, GF_TICK, GF_TEXTALIGN,
+ GF_DEF, GF_CDEF, GF_VDEF, GF_SHIFT,
+ GF_XPORT
+};
+
+enum txa_en { TXA_LEFT = 0, TXA_RIGHT, TXA_CENTER, TXA_JUSTIFIED };
enum vdef_op_en {
- VDEF_MAXIMUM=0 /* 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 */
- ,VDEF_LSLSLOPE /* least squares line slope */
- ,VDEF_LSLINT /* least squares line y_intercept */
- ,VDEF_LSLCORREL /* least squares line correlation coefficient */
- };
-enum text_prop_en { TEXT_PROP_DEFAULT=0, /* default settings */
- TEXT_PROP_TITLE, /* properties for the title */
- TEXT_PROP_AXIS, /* for the numbers next to the axis */
- TEXT_PROP_UNIT, /* for the vertical unit description */
- TEXT_PROP_LEGEND, /* fot the legend below the graph */
- TEXT_PROP_LAST };
+ VDEF_MAXIMUM = 0 /* like the MAX in (G)PRINT */
+ , VDEF_MINIMUM /* like the MIN in (G)PRINT */
+ , VDEF_AVERAGE /* like the AVERAGE in (G)PRINT */
+ , VDEF_STDEV /* the standard deviation */
+ , 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 */
+ , VDEF_LSLSLOPE /* least squares line slope */
+ , VDEF_LSLINT /* least squares line y_intercept */
+ , VDEF_LSLCORREL /* least squares line correlation coefficient */
+ , VDEF_PERCENTNAN /* Nth percentile ignoring NAN*/
+};
+enum text_prop_en {
+ TEXT_PROP_DEFAULT = 0, /* default settings */
+ TEXT_PROP_TITLE, /* properties for the title */
+ TEXT_PROP_AXIS, /* for the numbers next to the axis */
+ TEXT_PROP_UNIT, /* for the vertical unit description */
+ TEXT_PROP_LEGEND, /* for the legend below the graph */
+ TEXT_PROP_WATERMARK, /* for the little text to the side of the graph */
+ TEXT_PROP_LAST
+};
+
+
+enum gfx_if_en { IF_PNG = 0, IF_SVG, IF_EPS, IF_PDF };
+enum gfx_en { GFX_LINE = 0, GFX_AREA, GFX_TEXT };
+enum gfx_h_align_en { GFX_H_NULL = 0, GFX_H_LEFT, GFX_H_RIGHT, GFX_H_CENTER };
+enum gfx_v_align_en { GFX_V_NULL = 0, GFX_V_TOP, GFX_V_BOTTOM, GFX_V_CENTER };
+
+/* cairo color components */
+typedef struct gfx_color_t {
+ double red;
+ double green;
+ double blue;
+ double alpha;
+} gfx_color_t;
+
typedef struct text_prop_t {
- double size;
- char font[1024];
+ double size;
+ char font[1024];
+ PangoFontDescription *font_desc;
} text_prop_t;
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 */
+ 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 xlab_t {
- long minsec; /* minimum sec per pix */
- long length; /* number of secs on the image */
- 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*/
+ long minsec; /* minimum sec per pix */
+ long length; /* number of secs on the image */
+ 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;
typedef struct ygrid_scale_t { /* y axis grid scaling info */
- double gridstep;
- int labfact;
- char labfmt[64];
+ double gridstep;
+ int labfact;
+ char labfmt[64];
} ygrid_scale_t;
/* sensible y label intervals ...*/
typedef struct ylab_t {
- double grid; /* grid spacing */
- int lfac[4]; /* associated label spacing*/
+ double grid; /* grid spacing */
+ int lfac[4]; /* associated label spacing */
} ylab_t;
-
/* 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. */
#define FMT_LEG_LEN 2000
#endif
-typedef struct graph_desc_t {
- enum gf_en gf; /* graphing function */
- int stack; /* boolean */
- int debug; /* boolean */
- char vname[MAX_VNAME_LEN+1]; /* name of the variable */
- long vidx; /* gdes reference */
- char rrd[1024]; /* 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 */
- enum cf_en cf_reduce; /* consolidation function for reduce_data() */
- gfx_color_t col; /* graph color */
- char format[FMT_LEG_LEN+5]; /* format for PRINT AND GPRINT */
- char legend[FMT_LEG_LEN+5]; /* legend*/
- int strftm; /* should the VDEF legend be formated with strftime */
- double leg_x,leg_y; /* 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 */
+typedef struct graph_desc_t {
+ enum gf_en gf; /* graphing function */
+ int stack; /* boolean */
+ int debug; /* boolean */
+ char vname[MAX_VNAME_LEN + 1]; /* name of the variable */
+ long vidx; /* gdes reference */
+ char rrd[1024]; /* 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 */
+ enum cf_en cf_reduce; /* consolidation function for reduce_data() */
+ struct gfx_color_t col; /* graph color */
+ char format[FMT_LEG_LEN + 5]; /* format for PRINT AND GPRINT */
+ char legend[FMT_LEG_LEN + 5]; /* legend */
+ int strftm; /* should the VDEF legend be formated with strftime */
+ double leg_x, leg_y; /* 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 */
/* SHIFT implementation */
- int shidx; /* gdes reference for offset (-1 --> constant) */
- time_t shval; /* offset if shidx is -1 */
- time_t shift; /* current shift applied */
+ int shidx; /* gdes reference for offset (-1 --> constant) */
+ time_t shval; /* offset if shidx is -1 */
+ time_t shift; /* current shift applied */
/* description of data fetched for the graph element */
- time_t start,end; /* timestaps for first and last data element */
- time_t start_orig,end_orig; /* timestaps for first and last data element */
- unsigned long step; /* time between samples */
- unsigned long step_orig; /* 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 */
- double linewidth; /* linewideth */
+ time_t start, end; /* timestaps for first and last data element */
+ time_t start_orig, end_orig; /* timestaps for first and last data element */
+ unsigned long step; /* time between samples */
+ unsigned long step_orig; /* 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 */
+ double linewidth; /* linewideth */
+
+ /* dashed line stuff */
+ int dash; /* boolean, draw dashed line? */
+ double *p_dashes; /* pointer do dash array which keeps the lengths of dashes */
+ int ndash; /* number of dash segments */
+ double offset; /* dash offset along the line */
+
+ enum txa_en txtalign; /* change default alignment strategy for text */
} graph_desc_t;
typedef struct image_desc_t {
/* configuration of graph */
- char graphfile[MAXPATH]; /* filename for graphic */
- FILE *graphhandle; /* FILE to use if filename is "-" */
- long xsize,ysize; /* graph area size in pixels */
-#ifdef WITH_PIECHART
- long piesize; /* size of the piechart */
-#endif
- gfx_color_t graph_col[__GRC_END__]; /* real colors for the graph */
- text_prop_t text_prop[TEXT_PROP_LAST]; /* text properties */
- char ylegend[210]; /* legend along the yaxis */
- char title[210]; /* title for graph */
- char watermark[110]; /* watermark for graph */
- int draw_x_grid; /* no x-grid at all */
- int draw_y_grid; /* no x-grid at all */
- double grid_dash_on, grid_dash_off;
- xlab_t xlab_user; /* user defined labeling for xaxis */
- char xlab_form[210]; /* 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 ? */
- double tabwidth; /* tabwdith */
- 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 */
- ygrid_scale_t ygrid_scale; /* calculated y axis grid info */
- int gridfit; /* adjust y-axis range etc so all
- grindlines falls in integer pixel values */
- char* imginfo; /* construct an <IMG ... tag and return
- as first retval */
- int lazy; /* only update the image if there is
- reasonable probablility that the
- existing one is out of date */
- int slopemode; /* connect the dots of the curve directly, not using a stair */
- int logarithmic; /* scale the yaxis logarithmic */
-
+ char graphfile[MAXPATH]; /* filename for graphic */
+ long xsize, ysize; /* graph area size in pixels */
+ struct gfx_color_t graph_col[__GRC_END__]; /* real colors for the graph */
+ text_prop_t text_prop[TEXT_PROP_LAST]; /* text properties */
+ char ylegend[210]; /* legend along the yaxis */
+ char title[210]; /* title for graph */
+ char watermark[110]; /* watermark for graph */
+ int draw_x_grid; /* no x-grid at all */
+ int draw_y_grid; /* no x-grid at all */
+ double grid_dash_on, grid_dash_off;
+ xlab_t xlab_user; /* user defined labeling for xaxis */
+ char xlab_form[210]; /* format for the label on the xaxis */
+ double second_axis_scale; /* relative to the first axis (0 to disable) */
+ double second_axis_shift; /* how much is it shifted vs the first axis */
+ char second_axis_legend[210]; /* label to put on the seond axis */
+ char second_axis_format[210]; /* format for the numbers on the scond axis */
+
+ double ygridstep; /* user defined step for y grid */
+ int ylabfact; /* every how many y grid shall a label be written ? */
+ double tabwidth; /* tabwdith */
+ 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 */
+ ygrid_scale_t ygrid_scale; /* calculated y axis grid info */
+ int gridfit; /* adjust y-axis range etc so all
+ grindlines falls in integer pixel values */
+ char *imginfo; /* construct an <IMG ... tag and return
+ as first retval */
+ enum gfx_if_en imgformat; /* image format */
+ char *daemon_addr; /* rrdcached connection string */
+ int lazy; /* only update the image if there is
+ reasonable probablility that the
+ existing one is out of date */
+ int slopemode; /* connect the dots of the curve directly, not using a stair */
+ int logarithmic; /* scale the yaxis logarithmic */
+ double force_scale_min; /* Force a scale--min */
+ double force_scale_max; /* Force a scale--max */
+
/* status information */
-
- long xorigin,yorigin;/* where is (0,0) of the graph */
-#ifdef WITH_PIECHART
- long pie_x,pie_y; /* where is the centerpoint */
-#endif
- long ximg,yimg; /* total size of the image */
- double magfact; /* numerical magnitude*/
- long base; /* 1000 or 1024 depending on what we graph */
- char symbol; /* magnitude symbol for y-axis */
- float viewfactor; /* how should the numbers on the y-axis be scaled for viewing ? */
- int unitsexponent; /* 10*exponent for units on y-asis */
- int unitslength; /* width of the yaxis labels */
- int forceleftspace; /* do not kill the space to the left of the y-axis if there is no grid */
-
- int extra_flags; /* flags for boolean options */
+ int with_markup;
+ long xorigin, yorigin; /* where is (0,0) of the graph */
+ long ximg, yimg; /* total size of the image */
+ size_t rendered_image_size;
+ double zoom;
+ double magfact; /* numerical magnitude */
+ long base; /* 1000 or 1024 depending on what we graph */
+ char symbol; /* magnitude symbol for y-axis */
+ float viewfactor; /* how should the numbers on the y-axis be scaled for viewing ? */
+ int unitsexponent; /* 10*exponent for units on y-asis */
+ int unitslength; /* width of the yaxis labels */
+ int forceleftspace; /* do not kill the space to the left of the y-axis if there is no grid */
+
+ 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 */
- gfx_canvas_t *canvas; /* graphics library */
+ unsigned char *rendered_image;
+ 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 */
+ cairo_surface_t *surface; /* graphics library */
+ cairo_t *cr; /* drawin context */
+ cairo_font_options_t *font_options; /* cairo font options */
+ cairo_antialias_t graph_antialias; /* antialiasing for the graph */
+ PangoLayout *layout; /* the pango layout we use for writing fonts */
+ rrd_info_t *grinfo; /* root pointer to extra graph info */
+ rrd_info_t *grinfo_current; /* pointing to current entry */
} image_desc_t;
/* Prototypes */
-int xtr(image_desc_t *,time_t);
-double ytr(image_desc_t *, double);
-enum gf_en gf_conv(char *);
-enum gfx_if_en if_conv(char *);
-enum tmt_en tmt_conv(char *);
-enum grc_en grc_conv(char *);
-enum text_prop_en text_prop_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 apply_gridfit(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);
-int print_calc(image_desc_t *, char ***);
-int leg_place(image_desc_t *);
-int calc_horizontal_grid(image_desc_t *);
-int draw_horizontal_grid(image_desc_t *);
-int horizontal_log_grid(image_desc_t *);
-void vertical_grid(image_desc_t *);
-void axis_paint(image_desc_t *);
-void grid_paint(image_desc_t *);
-int lazy_check(image_desc_t *);
-int graph_paint(image_desc_t *, char ***);
-#ifdef WITH_PIECHART
-void pie_part(image_desc_t *, gfx_color_t, double, double, double, double, double);
-#endif
-int gdes_alloc(image_desc_t *);
-int scan_for_col(const char *const , int, char *const);
-int rrd_graph(int, char **, char ***, int *, int *, FILE *, double *, double *);
-void rrd_graph_init(image_desc_t *);
-void rrd_graph_options(int, char **, image_desc_t *);
-void rrd_graph_script(int, char **, image_desc_t *, int);
-int rrd_graph_color(image_desc_t *, char *, char *, int);
-int bad_format(char *);
-int vdef_parse(struct graph_desc_t *,const char *const);
-int vdef_calc(image_desc_t *, int);
-int vdef_percent_compar(const void *,const void *);
-int graph_size_location(image_desc_t *, int
-#ifdef WITH_PIECHART
- ,int
-#endif
-);
+int xtr(
+ image_desc_t *,
+ time_t);
+double ytr(
+ image_desc_t *,
+ double);
+enum gf_en gf_conv(
+ char *);
+enum gfx_if_en if_conv(
+ char *);
+enum tmt_en tmt_conv(
+ char *);
+enum grc_en grc_conv(
+ char *);
+enum text_prop_en text_prop_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 apply_gridfit(
+ 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);
+int print_calc(
+ image_desc_t *);
+int leg_place(
+ image_desc_t *,
+ int *);
+int calc_horizontal_grid(
+ image_desc_t *);
+int draw_horizontal_grid(
+ image_desc_t *);
+int horizontal_log_grid(
+ image_desc_t *);
+void vertical_grid(
+ image_desc_t *);
+void axis_paint(
+ image_desc_t *);
+void grid_paint(
+ image_desc_t *);
+int lazy_check(
+ image_desc_t *);
+int graph_paint(
+ image_desc_t *);
+
+int gdes_alloc(
+ image_desc_t *);
+int scan_for_col(
+ const char *const,
+ int,
+ char *const);
+void rrd_graph_init(
+ image_desc_t *);
+
+void rrd_graph_options(
+ int,
+ char **,
+ image_desc_t *);
+void rrd_graph_script(
+ int,
+ char **,
+ image_desc_t *,
+ int);
+int rrd_graph_color(
+ image_desc_t *,
+ char *,
+ char *,
+ int);
+int bad_format(
+ char *);
+int vdef_parse(
+ struct graph_desc_t *,
+ const char *const);
+int vdef_calc(
+ image_desc_t *,
+ int);
+int vdef_percent_compar(
+ const void *,
+ const void *);
+int graph_size_location(
+ image_desc_t *,
+ int);
+
+
+/* create a new line */
+void gfx_line(
+ image_desc_t *im,
+ double X0,
+ double Y0,
+ double X1,
+ double Y1,
+ double width,
+ gfx_color_t color);
+
+void gfx_dashed_line(
+ image_desc_t *im,
+ double X0,
+ double Y0,
+ double X1,
+ double Y1,
+ double width,
+ gfx_color_t color,
+ double dash_on,
+ double dash_off);
+
+/* create a new area */
+void gfx_new_area(
+ image_desc_t *im,
+ double X0,
+ double Y0,
+ double X1,
+ double Y1,
+ double X2,
+ double Y2,
+ gfx_color_t color);
+
+/* add a point to a line or to an area */
+void gfx_add_point(
+ image_desc_t *im,
+ double x,
+ double y);
+
+/* close current path so it ends at the same point as it started */
+void gfx_close_path(
+ image_desc_t *im);
+
+
+/* create a text node */
+void gfx_text(
+ image_desc_t *im,
+ double x,
+ double y,
+ gfx_color_t color,
+ PangoFontDescription *font_desc,
+ double tabwidth,
+ double angle,
+ enum gfx_h_align_en h_align,
+ enum gfx_v_align_en v_align,
+ const char *text);
+
+/* measure width of a text string */
+double gfx_get_text_width(
+ image_desc_t *im,
+ double start,
+ PangoFontDescription *font_desc,
+ double tabwidth,
+ char *text);
+
+
+/* convert color */
+gfx_color_t gfx_hex_to_col(
+ long unsigned int);
+
+void gfx_line_fit(
+ image_desc_t *im,
+ double *x,
+ double *y);
+
+void gfx_area_fit(
+ image_desc_t *im,
+ double *x,
+ double *y);
#endif
+
+void grinfo_push(
+ image_desc_t *im,
+ char *key,
+ rrd_info_type_t type, rrd_infoval_t value);
projects / rrdtool.git / blobdiff