X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Frrd_graph.h;h=51f3d3fbae49860ff27c82e0e8e7976174ace330;hb=2f9c0721d1f7e9eceae3d04e197d0e4a46eeb3b1;hp=22523be540a5f4ffb31feec6630bc24c4624e91b;hpb=2a6a270edfda89b04722b42b57992907f871c671;p=rrdtool.git

diff --git a/src/rrd_graph.h b/src/rrd_graph.h
index 22523be..51f3d3f 100644
--- a/src/rrd_graph.h
+++ b/src/rrd_graph.h
@@ -1,9 +1,18 @@
 #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>
+
 #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]"
@@ -20,6 +29,8 @@
 #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 FULL_SIZE_MODE     0x200    /* -width and -height indicate the total size of the image */
+
 enum tmt_en { TMT_SECOND = 0, TMT_MINUTE, TMT_HOUR, TMT_DAY,
     TMT_WEEK, TMT_MONTH, TMT_YEAR
 };
@@ -32,18 +43,18 @@ enum grc_en { GRC_CANVAS = 0, GRC_BACK, GRC_SHADEA, GRC_SHADEB,
 #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_AREA, GF_STACK, GF_TICK, GF_TEXTALIGN,
     GF_DEF, GF_CDEF, GF_VDEF, GF_SHIFT,
-#ifdef WITH_PIECHART
-    GF_PART,
-#endif
     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_STDEV    /* the standard deviation */
         , VDEF_PERCENT  /* Nth percentile */
         , VDEF_TOTAL    /* average multiplied by time */
         , VDEF_FIRST    /* first non-unknown value and time */
@@ -60,6 +71,21 @@ enum text_prop_en { TEXT_PROP_DEFAULT = 0,  /* default settings */
     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];
@@ -99,7 +125,6 @@ typedef struct ylab_t {
     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. */
@@ -120,7 +145,7 @@ typedef struct graph_desc_t {
     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 */
+    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 */
@@ -146,6 +171,14 @@ typedef struct graph_desc_t {
     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 {
@@ -155,10 +188,7 @@ typedef struct image_desc_t {
     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 */
+    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 */
@@ -182,6 +212,7 @@ typedef struct image_desc_t {
                            grindlines falls in integer pixel values */
     char     *imginfo;  /* construct an <IMG ... tag and return 
                            as first retval */
+    enum gfx_if_en imgformat;   /* image format */
     int       lazy;     /* only update the image if there is
                            reasonable probablility that the
                            existing one is out of date */
@@ -191,10 +222,9 @@ typedef struct image_desc_t {
     /* 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 */
+    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 */
@@ -206,10 +236,14 @@ typedef struct image_desc_t {
     int       extra_flags;  /* flags for boolean options */
     /* data elements */
 
+    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 */
-    gfx_canvas_t *canvas;   /* graphics library */
+    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 */
 } image_desc_t;
 
 /* Prototypes */
@@ -276,7 +310,8 @@ int       print_calc(
     image_desc_t *,
     char ***);
 int       leg_place(
-    image_desc_t *);
+    image_desc_t *,
+    int *);
 int       calc_horizontal_grid(
     image_desc_t *);
 int       draw_horizontal_grid(
@@ -295,16 +330,6 @@ 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(
@@ -350,10 +375,88 @@ int       vdef_percent_compar(
 int       graph_size_location(
     image_desc_t *,
     int
-#ifdef WITH_PIECHART
-    ,
-    int
-#endif
     );
 
+
+/* 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,
+    char *font,
+    double size,
+    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,
+    char *font,
+    double size,
+    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