--font-render-mode is back, and there is also

--graph-render-mode now. It allows to enable
mono graphs that look strikingly like rrdtool 1.0.x
--tobi

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@1107 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/NEWS b/NEWS
index 32ee7d4..28b801c 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -14,7 +14,10 @@ Graphing
 --------
 * libart has been replaced by cairo/pango
 * pango markup is supported
-* full gridfitting
+* full gridfitting 
+* --graph-render-mode=mono for non antialiased graphing
+* --font-render-mode=mono for non antialiased fonts
+
 
 RRDTOOL NEWS
 ============

diff --git a/configure.ac b/configure.ac
index b27a3e7..e88f287 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -605,9 +605,9 @@ dnl EX_CHECK_ALL(z,          zlibVersion,               zlib.h,
 dnl EX_CHECK_ALL(png,        png_access_version_number, png.h,                  libpng,      1.2.10,  http://prdownloads.sourceforge.net/libpng/, "")
 dnl EX_CHECK_ALL(freetype,   FT_Init_FreeType,          ft2build.h,                    freetype2,   2.1.10,  http://prdownloads.sourceforge.net/freetype/, /usr/include/freetype2)
 dnl EX_CHECK_ALL(fontconfig, FcInit,                    fontconfig.h,              fontconfig,  2.3.1,  http://fontconfig.org/release/, /usr/include)
-EX_CHECK_ALL(cairo,      cairo_version,             cairo.h,                cairo-png,   1.4.6,  http://cairographics.org/releases/, "")
+EX_CHECK_ALL(cairo,      cairo_font_options_create,     cairo.h,                cairo-png,   1.4.6,  http://cairographics.org/releases/, "")
 dnl EX_CHECK_ALL(glib-2.0,   glib_check_version,        glib.h,                 glib-2.0,    2.12.12, ftp://ftp.gtk.org/pub/glib/2.12/, "")
-EX_CHECK_ALL(pango-1.0,  pango_version_check,       pango/pango.h,          pangocairo,  1.17,    http://ftp.gnome.org/pub/GNOME/sources/pango/1.17, "")
+EX_CHECK_ALL(pango-1.0,  pango_cairo_context_set_font_options,  pango/pango.h,  pangocairo,  1.17,    http://ftp.gnome.org/pub/GNOME/sources/pango/1.17, "")
 
 if test "$EX_CHECK_ALL_ERR" = "YES"; then
   AC_MSG_ERROR([Please fix the library issues listed above and try again.])

diff --git a/doc/rrdgraph.pod b/doc/rrdgraph.pod
index 812b247..8485675 100644 (file)
--- a/doc/rrdgraph.pod
+++ b/doc/rrdgraph.pod
@@ -146,13 +146,10 @@ and thus the throughput may be higher than the WAN line speed.
 
 [B<-N>|B<--no-gridfit>]
 
-In order to avoid anti-aliasing effects gridlines are placed on
-integer pixel values. This is by default done by extending
-the scale so that gridlines happens to be spaced using an
-integer number of pixels and also start on an integer pixel value.
-This might extend the scale too much for some logarithmic scales
-and for linear scales where B<--alt-autoscale> is needed.
-Using B<--no-gridfit> disables modification of the scale.
+In order to avoid anti-aliasing blurring effects rrdtool snaps
+points to device resolution pixels, this results in a crisper
+aperance. If this is not to your liking, you can use this switch
+to turn this behaviour off.
 
 =item Grid
 
@@ -320,13 +317,16 @@ gravity, and I<SIZE> is a decimal number (size in points) or optionally
 followed by the unit modifier "px" for absolute size. Any one of the options
 may be absent.
 
-[B<-R>|B<--font-render-mode> {I<normal>,I<light>,I<mono>}]
+[B<-R>|B<--font-render-mode> {B<normal>,B<light>,B<mono>}]
 
-(this gets ignored in 1.3 for now!)
+There are 3 font render modes:
+
+B<normal>: Full Hinting and Antialiasing (default)
+
+B<light>: Slight Hinting and Antialiasing
+
+B<mono>: Full Hinting and NO Antialiasing
 
-This lets you customize the strength of the font smoothing,
-or disable it entirely using I<mono>. By default, I<normal>
-font smoothing is used.
 
 [B<-B>|B<--font-smoothing-threshold> I<size>]
 
@@ -336,6 +336,14 @@ This specifies the largest font size which will be rendered
 bitmapped, that is, without any font smoothing. By default,
 no text is rendered bitmapped.
 
+[B<-G>|B<--graph-render-mode> {B<normal>,B<mono>}]
+
+There are 2 render modes:
+
+B<normal>: Graphs are fully Antialiased (default)
+
+B<mono>: No Antialiasing
+
 [B<-E>|B<--slope-mode>]
 
 RRDtool graphs are composed of stair case curves by default. This is in line with

diff --git a/src/Makefile.am b/src/Makefile.am
index 43f7ce4..6878068 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -49,7 +49,6 @@ RRD_C_FILES =         \
 
 noinst_HEADERS = \
        unused.h \
-       rrd_gfx.h \
        rrd_getopt.h parsetime.h \
        rrd_format.h rrd_tool.h rrd_xport.h rrd.h rrd_hw.h rrd_rpncalc.h \
        rrd_nan_inf.h fnv.h rrd_graph.h \

diff --git a/src/rrd_gfx.c b/src/rrd_gfx.c
index ec6a574..8a18ce4 100644 (file)
--- a/src/rrd_gfx.c
+++ b/src/rrd_gfx.c
@@ -18,12 +18,12 @@
 #endif                          /* _MSC_VER */
 
 #include "rrd_tool.h"
-#include "rrd_gfx.h"
+#include "rrd_graph.h"
 
 
 /* create a new line */
 void gfx_line(
-    cairo_t * cr,
+    image_desc_t *im,
     double X0,
     double Y0,
     double X1,
@@ -31,11 +31,11 @@ void gfx_line(
     double width,
     gfx_color_t color)
 {
-    gfx_dashed_line(cr, X0, Y0, X1, Y1, width, color, 0, 0);
+    gfx_dashed_line(im, X0, Y0, X1, Y1, width, color, 0, 0);
 }
 
 void gfx_dashed_line(
-    cairo_t * cr,
+    image_desc_t *im,
     double X0,
     double Y0,
     double X1,
@@ -45,6 +45,7 @@ void gfx_dashed_line(
     double dash_on,
     double dash_off)
 {
+    cairo_t  *cr = im->cr;
     double    dashes[] = { dash_on, dash_off };
     double    x = 0;
     double    y = 0;
@@ -52,10 +53,10 @@ void gfx_dashed_line(
     cairo_save(cr);
     cairo_new_path(cr);
     cairo_set_line_width(cr, width);
-    gfx_line_fit(cr, &x, &y);
-    gfx_line_fit(cr, &X0, &Y0);
+    gfx_line_fit(im, &x, &y);
+    gfx_line_fit(im, &X0, &Y0);
     cairo_move_to(cr, X0, Y0);
-    gfx_line_fit(cr, &X1, &Y1);
+    gfx_line_fit(im, &X1, &Y1);
     cairo_line_to(cr, X1, Y1);
     if (dash_on > 0 || dash_off > 0)
         cairo_set_dash(cr, dashes, 2, x);
@@ -67,7 +68,7 @@ void gfx_dashed_line(
 
 /* create a new area */
 void gfx_new_area(
-    cairo_t * cr,
+    image_desc_t *im,
     double X0,
     double Y0,
     double X1,
@@ -76,12 +77,14 @@ void gfx_new_area(
     double Y2,
     gfx_color_t color)
 {
+    cairo_t  *cr = im->cr;
+
     cairo_new_path(cr);
-    gfx_area_fit(cr, &X0, &Y0);
+    gfx_area_fit(im, &X0, &Y0);
     cairo_move_to(cr, X0, Y0);
-    gfx_area_fit(cr, &X1, &Y1);
+    gfx_area_fit(im, &X1, &Y1);
     cairo_line_to(cr, X1, Y1);
-    gfx_area_fit(cr, &X2, &Y2);
+    gfx_area_fit(im, &X2, &Y2);
     cairo_line_to(cr, X2, Y2);
     cairo_set_source_rgba(cr, color.red, color.green, color.blue,
                           color.alpha);
@@ -89,24 +92,28 @@ void gfx_new_area(
 
 /* add a point to a line or to an area */
 void gfx_add_point(
-    cairo_t * cr,
+    image_desc_t *im,
     double x,
     double y)
 {
-    gfx_area_fit(cr, &x, &y);
+    cairo_t  *cr = im->cr;
+
+    gfx_area_fit(im, &x, &y);
     cairo_line_to(cr, x, y);
 }
 
 void gfx_close_path(
-    cairo_t * cr)
+    image_desc_t *im)
 {
+    cairo_t  *cr = im->cr;
+
     cairo_close_path(cr);
     cairo_fill(cr);
 }
 
 /* create a text node */
 static PangoLayout *gfx_prep_text(
-    cairo_t * cr,
+    image_desc_t *im,
     double x,
     gfx_color_t color,
     char *font,
@@ -116,6 +123,7 @@ static PangoLayout *gfx_prep_text(
 {
     PangoLayout *layout;
     PangoFontDescription *font_desc;
+    cairo_t  *cr = im->cr;
 
     /* for performance reasons we might
        want todo that only once ... tabs will always
@@ -125,6 +133,7 @@ static PangoLayout *gfx_prep_text(
     long      tab_shift = fmod(x, tabwidth);
 
     PangoTabArray *tab_array;
+    PangoContext *pango_context;
 
     tab_array = pango_tab_array_new(tab_count, (gboolean) (1));
     for (i = 1; i <= tab_count; i++) {
@@ -135,6 +144,9 @@ static PangoLayout *gfx_prep_text(
     cairo_set_source_rgba(cr, color.red, color.green, color.blue,
                           color.alpha);
     layout = pango_cairo_create_layout(cr);
+    pango_context = pango_layout_get_context(layout);
+    pango_cairo_context_set_font_options(pango_context, im->font_options);
+    pango_cairo_update_context(cr, pango_context);
 
     pango_layout_set_tabs(layout, tab_array);
     font_desc = pango_font_description_from_string(font);
@@ -146,7 +158,7 @@ static PangoLayout *gfx_prep_text(
 
 /* Size Text Node */
 double gfx_get_text_width(
-    cairo_t * cr,
+    image_desc_t *im,
     double start,
     char *font,
     double size,
@@ -159,11 +171,11 @@ double gfx_get_text_width(
     char     *tab;
 
     /* turn \\t into tab */
-    while (tab = strstr(text, "\\t")) {
+    while ((tab = strstr(text, "\\t"))) {
         memmove(tab + 1, tab + 2, strlen(tab + 2));
         tab[0] = (char) 9;
     }
-    layout = gfx_prep_text(cr, start, color, font, size, tabwidth, text);
+    layout = gfx_prep_text(im, start, color, font, size, tabwidth, text);
     pango_layout_get_pixel_extents(layout, NULL, &log_rect);
     pango_tab_array_free(pango_layout_get_tabs(layout));
     g_object_unref(layout);
@@ -171,7 +183,7 @@ double gfx_get_text_width(
 }
 
 void gfx_text(
-    cairo_t * cr,
+    image_desc_t *im,
     double x,
     double y,
     gfx_color_t color,
@@ -186,6 +198,7 @@ void gfx_text(
     PangoLayout *layout;
     PangoRectangle log_rect;
     PangoRectangle ink_rect;
+    cairo_t  *cr = im->cr;
     double    sx = 0;
     double    sy = 0;
 
@@ -193,11 +206,10 @@ void gfx_text(
     cairo_translate(cr, x, y);
 /*    gfx_line(cr,-2,0,2,0,1,color);
     gfx_line(cr,0,-2,0,2,1,color); */
-    layout = gfx_prep_text(cr, x, color, font, size, tabwidth, text);
+    layout = gfx_prep_text(im, x, color, font, size, tabwidth, text);
     pango_layout_get_pixel_extents(layout, &ink_rect, &log_rect);
     cairo_rotate(cr, -angle * G_PI / 180.0);
     sx = log_rect.x;
-    sy = ink_rect.y;
     switch (h_align) {
     case GFX_H_RIGHT:
         sx -= log_rect.width;
@@ -210,7 +222,7 @@ void gfx_text(
     case GFX_H_NULL:
         break;
     }
-    sy += log_rect.y;
+    sy = log_rect.y;
     switch (v_align) {
     case GFX_V_TOP:
         break;
@@ -248,20 +260,23 @@ struct gfx_color_t gfx_hex_to_col(
 /* gridfit_lines */
 
 void gfx_line_fit(
-    cairo_t * cr,
+    image_desc_t *im,
     double *x,
     double *y)
 {
+    cairo_t  *cr = im->cr;
     double    line_width;
     double    line_height;
 
+    if (!im->gridfit)
+        return;
     cairo_user_to_device(cr, x, y);
     line_width = cairo_get_line_width(cr);
     line_height = line_width;
     cairo_user_to_device_distance(cr, &line_width, &line_height);
     line_width = line_width / 2.0 - (long) (line_width / 2.0);
     line_height = line_height / 2.0 - (long) (line_height / 2.0);
-    *x = (double) ((long) (*x + 0.5)) + line_width;
+    *x = (double) ((long) (*x + 0.5)) - line_width;
     *y = (double) ((long) (*y + 0.5)) + line_height;
     cairo_device_to_user(cr, x, y);
 }
@@ -269,10 +284,14 @@ void gfx_line_fit(
 /* gridfit_areas */
 
 void gfx_area_fit(
-    cairo_t * cr,
+    image_desc_t *im,
     double *x,
     double *y)
 {
+    cairo_t  *cr = im->cr;
+
+    if (!im->gridfit)
+        return;
     cairo_user_to_device(cr, x, y);
     *x = (double) ((long) (*x + 0.5));
     *y = (double) ((long) (*y + 0.5));

diff --git a/src/rrd_gfx.h b/src/rrd_gfx.h
deleted file mode 100644 (file)
index c3cd1e3..0000000
--- a/src/rrd_gfx.h
+++ /dev/null
@@ -1,111 +0,0 @@
-/****************************************************************************
- * RRDtool 1.2.23  Copyright by Tobi Oetiker, 1997-2007
- ****************************************************************************
- * rrd_gfx.h generic graphics adapter library
- ****************************************************************************/
-
-#ifndef RRD_GFX_H
-#define RRD_GFX_H
-
-#define y0 cairo_y0
-#define y1 cairo_y1
-#define index cairo_index
-
-#include <cairo-pdf.h>
-#include <cairo-svg.h>
-#include <cairo-ps.h>
-#include <pango/pangocairo.h>
-
-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;
-
-
-/* create a new line */
-void      gfx_line(
-    cairo_t * cr,
-    double X0,
-    double Y0,
-    double X1,
-    double Y1,
-    double width,
-    gfx_color_t color);
-
-void      gfx_dashed_line(
-    cairo_t * cr,
-    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(
-    cairo_t * cr,
-    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(
-    cairo_t * cr,
-    double x,
-    double y);
-
-/* close current path so it ends at the same point as it started */
-void      gfx_close_path(
-    cairo_t * cr);
-
-
-/* create a text node */
-void      gfx_text(
-    cairo_t * cr,
-    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(
-    cairo_t * cr,
-    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(
-    cairo_t *,
-    double *,
-    double *);
-void      gfx_area_fit(
-    cairo_t *,
-    double *,
-    double *);
-#endif

diff --git a/src/rrd_graph.c b/src/rrd_graph.c
index d23d071..6648d9c 100644 (file)
--- a/src/rrd_graph.c
+++ b/src/rrd_graph.c
@@ -326,6 +326,8 @@ int im_free(
     free(im->gdes);
     if (im->surface)
         cairo_surface_destroy(im->surface);
+    if (im->font_options)
+        cairo_font_options_destroy(im->font_options);
     return 0;
 }
 
@@ -1638,7 +1640,7 @@ int leg_place(
                     /* no interleg space if string ends in \g */
                     fill += legspace[i];
                 }
-                fill += gfx_get_text_width(im->cr, fill + border,
+                fill += gfx_get_text_width(im, fill + border,
                                            im->text_prop[TEXT_PROP_LEGEND].
                                            font,
                                            im->text_prop[TEXT_PROP_LEGEND].
@@ -1690,7 +1692,7 @@ int leg_place(
                     im->gdes[ii].leg_x = leg_x;
                     im->gdes[ii].leg_y = leg_y;
                     leg_x +=
-                        gfx_get_text_width(im->cr, leg_x,
+                        gfx_get_text_width(im, leg_x,
                                            im->text_prop[TEXT_PROP_LEGEND].
                                            font,
                                            im->text_prop[TEXT_PROP_LEGEND].
@@ -1900,33 +1902,33 @@ int draw_horizontal_grid(
                 }
                 nlabels++;
 
-                gfx_text(im->cr,
+                gfx_text(im,
                          X0 - im->text_prop[TEXT_PROP_AXIS].size, Y0,
                          im->graph_col[GRC_FONT],
                          im->text_prop[TEXT_PROP_AXIS].font,
                          im->text_prop[TEXT_PROP_AXIS].size,
                          im->tabwidth, 0.0, GFX_H_RIGHT, GFX_V_CENTER,
                          graph_label);
-                gfx_line(im->cr,
+                gfx_line(im,
                          X0 - 2, Y0,
                          X0, Y0, MGRIDWIDTH, im->graph_col[GRC_MGRID]);
-                gfx_line(im->cr,
+                gfx_line(im,
                          X1, Y0,
                          X1 + 2, Y0, MGRIDWIDTH, im->graph_col[GRC_MGRID]);
-                gfx_dashed_line(im->cr,
+                gfx_dashed_line(im,
                                 X0 - 2, Y0,
                                 X1 + 2, Y0,
                                 MGRIDWIDTH, im->graph_col[GRC_MGRID],
                                 im->grid_dash_on, im->grid_dash_off);
 
             } else if (!(im->extra_flags & NOMINOR)) {
-                gfx_line(im->cr,
+                gfx_line(im,
                          X0 - 2, Y0,
                          X0, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]);
-                gfx_line(im->cr,
+                gfx_line(im,
                          X1, Y0,
                          X1 + 2, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]);
-                gfx_dashed_line(im->cr,
+                gfx_dashed_line(im,
                                 X0 - 1, Y0,
                                 X1 + 1, Y0,
                                 GRIDWIDTH, im->graph_col[GRC_GRID],
@@ -2069,13 +2071,13 @@ int horizontal_log_grid(
 
         /* major grid line */
 
-        gfx_line(im->cr,
+        gfx_line(im,
                  X0 - 2, Y0, X0, Y0, MGRIDWIDTH, im->graph_col[GRC_MGRID]);
-        gfx_line(im->cr,
+        gfx_line(im,
                  X1, Y0, X1 + 2, Y0, MGRIDWIDTH, im->graph_col[GRC_MGRID]);
 
 
-        gfx_dashed_line(im->cr,
+        gfx_dashed_line(im,
                         X0 - 2, Y0,
                         X1 + 2, Y0,
                         MGRIDWIDTH, im->graph_col[GRC_MGRID],
@@ -2103,7 +2105,7 @@ int horizontal_log_grid(
             sprintf(graph_label, "%3.0f %c", pvalue, symbol);
         } else
             sprintf(graph_label, "%3.0e", value);
-        gfx_text(im->cr,
+        gfx_text(im,
                  X0 - im->text_prop[TEXT_PROP_AXIS].size, Y0,
                  im->graph_col[GRC_FONT],
                  im->text_prop[TEXT_PROP_AXIS].font,
@@ -2137,13 +2139,13 @@ int horizontal_log_grid(
                     break;
 
                 /* draw lines */
-                gfx_line(im->cr,
+                gfx_line(im,
                          X0 - 2, Y0,
                          X0, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]);
-                gfx_line(im->cr,
+                gfx_line(im,
                          X1, Y0,
                          X1 + 2, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]);
-                gfx_dashed_line(im->cr,
+                gfx_dashed_line(im,
                                 X0 - 1, Y0,
                                 X1 + 1, Y0,
                                 GRIDWIDTH, im->graph_col[GRC_GRID],
@@ -2160,13 +2162,13 @@ int horizontal_log_grid(
                     break;
 
                 /* draw lines */
-                gfx_line(im->cr,
+                gfx_line(im,
                          X0 - 2, Y0,
                          X0, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]);
-                gfx_line(im->cr,
+                gfx_line(im,
                          X1, Y0,
                          X1 + 2, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]);
-                gfx_dashed_line(im->cr,
+                gfx_dashed_line(im,
                                 X0 - 1, Y0,
                                 X1 + 1, Y0,
                                 GRIDWIDTH, im->graph_col[GRC_GRID],
@@ -2208,11 +2210,11 @@ int horizontal_log_grid(
                 break;
 
             /* draw lines */
-            gfx_line(im->cr,
+            gfx_line(im,
                      X0 - 2, Y0, X0, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]);
-            gfx_line(im->cr,
+            gfx_line(im,
                      X1, Y0, X1 + 2, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]);
-            gfx_dashed_line(im->cr,
+            gfx_dashed_line(im,
                             X0 - 1, Y0,
                             X1 + 1, Y0,
                             GRIDWIDTH, im->graph_col[GRC_GRID],
@@ -2231,11 +2233,11 @@ int horizontal_log_grid(
                 break;
 
             /* draw lines */
-            gfx_line(im->cr,
+            gfx_line(im,
                      X0 - 2, Y0, X0, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]);
-            gfx_line(im->cr,
+            gfx_line(im,
                      X1, Y0, X1 + 2, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]);
-            gfx_dashed_line(im->cr,
+            gfx_dashed_line(im,
                             X0 - 1, Y0,
                             X1 + 1, Y0,
                             GRIDWIDTH, im->graph_col[GRC_GRID],
@@ -2310,11 +2312,11 @@ void vertical_grid(
             if (ti == timajor)
                 continue;   /* skip as falls on major grid line */
             X0 = xtr(im, ti);
-            gfx_line(im->cr, X0, Y1 - 2, X0, Y1, GRIDWIDTH,
+            gfx_line(im, X0, Y1 - 2, X0, Y1, GRIDWIDTH,
                      im->graph_col[GRC_GRID]);
-            gfx_line(im->cr, X0, Y0, X0, Y0 + 2, GRIDWIDTH,
+            gfx_line(im, X0, Y0, X0, Y0 + 2, GRIDWIDTH,
                      im->graph_col[GRC_GRID]);
-            gfx_dashed_line(im->cr, X0, Y1 - 1, X0, Y0 + 1, GRIDWIDTH,
+            gfx_dashed_line(im, X0, Y0 + 1, X0, Y1 - 1, GRIDWIDTH,
                             im->graph_col[GRC_GRID],
                             im->grid_dash_on, im->grid_dash_off);
 
@@ -2332,11 +2334,11 @@ void vertical_grid(
         if (ti < im->start || ti > im->end)
             continue;
         X0 = xtr(im, ti);
-        gfx_line(im->cr, X0, Y1 - 2, X0, Y1, MGRIDWIDTH,
+        gfx_line(im, X0, Y1 - 2, X0, Y1, MGRIDWIDTH,
                  im->graph_col[GRC_MGRID]);
-        gfx_line(im->cr, X0, Y0, X0, Y0 + 3, MGRIDWIDTH,
+        gfx_line(im, X0, Y0, X0, Y0 + 3, MGRIDWIDTH,
                  im->graph_col[GRC_MGRID]);
-        gfx_dashed_line(im->cr, X0, Y1 - 2, X0, Y0 + 3, MGRIDWIDTH,
+        gfx_dashed_line(im, X0, Y0 + 3, X0, Y1 - 2, MGRIDWIDTH,
                         im->graph_col[GRC_MGRID],
                         im->grid_dash_on, im->grid_dash_off);
 
@@ -2359,9 +2361,9 @@ void vertical_grid(
 #else
 # error "your libc has no strftime I guess we'll abort the exercise here."
 #endif
-        gfx_text(im->cr,
+        gfx_text(im,
                  xtr(im, tilab),
-                 Y0 + 1,
+                 Y0 + 3,
                  im->graph_col[GRC_FONT],
                  im->text_prop[TEXT_PROP_AXIS].font,
                  im->text_prop[TEXT_PROP_AXIS].size, im->tabwidth, 0.0,
@@ -2384,23 +2386,23 @@ void axis_paint(
        im->xorigin+im->xsize,im->yorigin-im->ysize,
        GRIDWIDTH, im->graph_col[GRC_AXIS]); */
 
-    gfx_line(im->cr, im->xorigin - 4, im->yorigin,
+    gfx_line(im, im->xorigin - 4, im->yorigin,
              im->xorigin + im->xsize + 4, im->yorigin,
              MGRIDWIDTH, im->graph_col[GRC_AXIS]);
 
-    gfx_line(im->cr, im->xorigin, im->yorigin + 4,
+    gfx_line(im, im->xorigin, im->yorigin + 4,
              im->xorigin, im->yorigin - im->ysize - 4,
              MGRIDWIDTH, im->graph_col[GRC_AXIS]);
 
 
     /* arrow for X and Y axis direction */
-    gfx_new_area(im->cr, im->xorigin + im->xsize + 2, im->yorigin - 2, im->xorigin + im->xsize + 2, im->yorigin + 3, im->xorigin + im->xsize + 7, im->yorigin + 0.5,    /* LINEOFFSET */
+    gfx_new_area(im, im->xorigin + im->xsize + 2, im->yorigin - 2, im->xorigin + im->xsize + 2, im->yorigin + 3, im->xorigin + im->xsize + 7, im->yorigin + 0.5,    /* LINEOFFSET */
                  im->graph_col[GRC_ARROW]);
-    gfx_close_path(im->cr);
+    gfx_close_path(im);
 
-    gfx_new_area(im->cr, im->xorigin - 2, im->yorigin - im->ysize - 2, im->xorigin + 3, im->yorigin - im->ysize - 2, im->xorigin + 0.5, im->yorigin - im->ysize - 7,    /* LINEOFFSET */
+    gfx_new_area(im, im->xorigin - 2, im->yorigin - im->ysize - 2, im->xorigin + 3, im->yorigin - im->ysize - 2, im->xorigin + 0.5, im->yorigin - im->ysize - 7,    /* LINEOFFSET */
                  im->graph_col[GRC_ARROW]);
-    gfx_close_path(im->cr);
+    gfx_close_path(im);
 
 
 }
@@ -2414,20 +2416,20 @@ void grid_paint(
     struct gfx_color_t water_color;
 
     /* draw 3d border */
-    gfx_new_area(im->cr, 0, im->yimg,
+    gfx_new_area(im, 0, im->yimg,
                  2, im->yimg - 2, 2, 2, im->graph_col[GRC_SHADEA]);
-    gfx_add_point(im->cr, im->ximg - 2, 2);
-    gfx_add_point(im->cr, im->ximg, 0);
-    gfx_add_point(im->cr, 0, 0);
-    gfx_close_path(im->cr);
+    gfx_add_point(im, im->ximg - 2, 2);
+    gfx_add_point(im, im->ximg, 0);
+    gfx_add_point(im, 0, 0);
+    gfx_close_path(im);
 
-    gfx_new_area(im->cr, 2, im->yimg - 2,
+    gfx_new_area(im, 2, im->yimg - 2,
                  im->ximg - 2, im->yimg - 2,
                  im->ximg - 2, 2, im->graph_col[GRC_SHADEB]);
-    gfx_add_point(im->cr, im->ximg, 0);
-    gfx_add_point(im->cr, im->ximg, im->yimg);
-    gfx_add_point(im->cr, 0, im->yimg);
-    gfx_close_path(im->cr);
+    gfx_add_point(im, im->ximg, 0);
+    gfx_add_point(im, im->ximg, im->yimg);
+    gfx_add_point(im, 0, im->yimg);
+    gfx_close_path(im);
 
 
     if (im->draw_x_grid == 1)
@@ -2444,7 +2446,7 @@ void grid_paint(
         if (!res) {
             char     *nodata = "No Data found";
 
-            gfx_text(im->cr, im->ximg / 2,
+            gfx_text(im, im->ximg / 2,
                      (2 * im->yorigin - im->ysize) / 2,
                      im->graph_col[GRC_FONT],
                      im->text_prop[TEXT_PROP_AXIS].font,
@@ -2454,7 +2456,7 @@ void grid_paint(
     }
 
     /* yaxis unit description */
-    gfx_text(im->cr,
+    gfx_text(im,
              10, (im->yorigin - im->ysize / 2),
              im->graph_col[GRC_FONT],
              im->text_prop[TEXT_PROP_UNIT].font,
@@ -2462,8 +2464,8 @@ void grid_paint(
              RRDGRAPH_YLEGEND_ANGLE, GFX_H_CENTER, GFX_V_CENTER, im->ylegend);
 
     /* graph title */
-    gfx_text(im->cr,
-             im->ximg / 2, 4,
+    gfx_text(im,
+             im->ximg / 2, 6,
              im->graph_col[GRC_FONT],
              im->text_prop[TEXT_PROP_TITLE].font,
              im->text_prop[TEXT_PROP_TITLE].size, im->tabwidth, 0.0,
@@ -2471,8 +2473,8 @@ void grid_paint(
     /* rrdtool 'logo' */
     water_color = im->graph_col[GRC_FONT];
     water_color.alpha = 0.3;
-    gfx_text(im->cr,
-             im->ximg - 4, 7,
+    gfx_text(im,
+             im->ximg - 4, 5,
              water_color,
              im->text_prop[TEXT_PROP_AXIS].font,
              5.5, im->tabwidth, -90,
@@ -2480,7 +2482,7 @@ void grid_paint(
 
     /* graph watermark */
     if (im->watermark[0] != '\0') {
-        gfx_text(im->cr,
+        gfx_text(im,
                  im->ximg / 2, im->yimg - 6,
                  water_color,
                  im->text_prop[TEXT_PROP_AXIS].font,
@@ -2497,7 +2499,7 @@ void grid_paint(
             /* im->gdes[i].leg_y is the bottom of the legend */
             X0 = im->gdes[i].leg_x;
             Y0 = im->gdes[i].leg_y;
-            gfx_text(im->cr, X0, Y0,
+            gfx_text(im, X0, Y0,
                      im->graph_col[GRC_FONT],
                      im->text_prop[TEXT_PROP_LEGEND].font,
                      im->text_prop[TEXT_PROP_LEGEND].size,
@@ -2507,44 +2509,52 @@ void grid_paint(
                enough space for the box */
             if (im->gdes[i].gf != GF_PRINT &&
                 im->gdes[i].gf != GF_GPRINT && im->gdes[i].gf != GF_COMMENT) {
-                int       boxH, boxV;
+                double    boxH, boxV;
+                double    X1, Y1;
 
-                boxH = gfx_get_text_width(im->cr, 0,
+
+                boxH = gfx_get_text_width(im, 0,
                                           im->text_prop[TEXT_PROP_LEGEND].
                                           font,
                                           im->text_prop[TEXT_PROP_LEGEND].
                                           size, im->tabwidth, "o") * 1.2;
-                boxV = boxH * 1.1;
+                boxV = boxH;
 
                 /* shift the box up a bit */
-                Y0 -= boxV * 0.3;
+                Y0 -= boxV * 0.4;
 
                 /* make sure transparent colors show up the same way as in the graph */
 
-                gfx_new_area(im->cr,
+                gfx_new_area(im,
                              X0, Y0 - boxV,
                              X0, Y0, X0 + boxH, Y0, im->graph_col[GRC_BACK]);
-                gfx_add_point(im->cr, X0 + boxH, Y0 - boxV);
-                gfx_close_path(im->cr);
+                gfx_add_point(im, X0 + boxH, Y0 - boxV);
+                gfx_close_path(im);
 
-                gfx_new_area(im->cr,
+                gfx_new_area(im,
                              X0, Y0 - boxV,
                              X0, Y0, X0 + boxH, Y0, im->gdes[i].col);
-                gfx_add_point(im->cr, X0 + boxH, Y0 - boxV);
-                gfx_close_path(im->cr);
-
-                gfx_line(im->cr,
-                         X0, Y0 - boxV,
-                         X0, Y0, 1.0, im->graph_col[GRC_FRAME]);
-                gfx_line(im->cr,
-                         X0, Y0,
-                         X0 + boxH, Y0, 1.0, im->graph_col[GRC_FRAME]);
-                gfx_line(im->cr,
-                         X0 + boxH, Y0,
-                         X0 + boxH, Y0 - boxV, 1.0, im->graph_col[GRC_FRAME]);
-                gfx_line(im->cr,
-                         X0 + boxH, Y0 - boxV,
-                         X0, Y0 - boxV, 1.0, im->graph_col[GRC_FRAME]);
+                gfx_add_point(im, X0 + boxH, Y0 - boxV);
+                gfx_close_path(im);
+
+                cairo_save(im->cr);
+                cairo_new_path(im->cr);
+                cairo_set_line_width(im->cr, 1.0);
+                X1 = X0 + boxH;
+                Y1 = Y0 - boxV;
+                gfx_line_fit(im, &X0, &Y0);
+                gfx_line_fit(im, &X1, &Y1);
+                cairo_move_to(im->cr, X0, Y0);
+                cairo_line_to(im->cr, X1, Y0);
+                cairo_line_to(im->cr, X1, Y1);
+                cairo_line_to(im->cr, X0, Y1);
+                cairo_close_path(im->cr);
+                cairo_set_source_rgba(im->cr, im->graph_col[GRC_FRAME].red,
+                                      im->graph_col[GRC_FRAME].green,
+                                      im->graph_col[GRC_FRAME].blue,
+                                      im->graph_col[GRC_FRAME].alpha);
+                cairo_stroke(im->cr);
+                cairo_restore(im->cr);
             }
         }
     }
@@ -2644,7 +2654,7 @@ int graph_size_location(
             Yxlabel = im->text_prop[TEXT_PROP_AXIS].size * 2.5;
         }
         if (im->draw_y_grid || im->forceleftspace) {
-            Xylabel = gfx_get_text_width(im->cr, 0,
+            Xylabel = gfx_get_text_width(im, 0,
                                          im->text_prop[TEXT_PROP_AXIS].font,
                                          im->text_prop[TEXT_PROP_AXIS].size,
                                          im->tabwidth, "0") * im->unitslength;
@@ -2837,9 +2847,10 @@ int graph_paint(
     int       lazy = lazy_check(im);
 
     double    areazero = 0.0;
+    graph_desc_t *lastgdes = NULL;
+
     PangoFontMap *font_map = pango_cairo_font_map_get_default();
 
-    graph_desc_t *lastgdes = NULL;
 
     /* if we are lazy and there is nothing to PRINT ... quit now */
     if (lazy && im->prt_c == 0)
@@ -2888,8 +2899,12 @@ int graph_paint(
     if (!calc_horizontal_grid(im))
         return -1;
 
-    if (im->gridfit)
-        apply_gridfit(im);
+    /* reset precalc */
+    ytr(im, DNAN);
+
+/*   if (im->gridfit)
+     apply_gridfit(im); */
+
 
     /* the actual graph is created by going through the individual
        graph elements and then drawing them */
@@ -2921,24 +2936,25 @@ int graph_paint(
         break;
     };
     im->cr = cairo_create(im->surface);
-    pango_cairo_font_map_set_resolution(font_map, 100);
+    pango_cairo_font_map_set_resolution(PANGO_CAIRO_FONT_MAP(font_map), 100);
+    cairo_set_antialias(im->cr, im->graph_antialias);
     cairo_scale(im->cr, im->zoom, im->zoom);
 
-    gfx_new_area(im->cr,
+    gfx_new_area(im,
                  0, 0,
                  0, im->yimg, im->ximg, im->yimg, im->graph_col[GRC_BACK]);
 
-    gfx_add_point(im->cr, im->ximg, 0);
-    gfx_close_path(im->cr);
+    gfx_add_point(im, im->ximg, 0);
+    gfx_close_path(im);
 
-    gfx_new_area(im->cr,
+    gfx_new_area(im,
                  im->xorigin, im->yorigin,
                  im->xorigin + im->xsize, im->yorigin,
                  im->xorigin + im->xsize, im->yorigin - im->ysize,
                  im->graph_col[GRC_CANVAS]);
 
-    gfx_add_point(im->cr, im->xorigin, im->yorigin - im->ysize);
-    gfx_close_path(im->cr);
+    gfx_add_point(im, im->xorigin, im->yorigin - im->ysize);
+    gfx_close_path(im);
 
     if (im->minval > 0.0)
         areazero = im->minval;
@@ -2963,14 +2979,14 @@ int graph_paint(
                 if (!isnan(im->gdes[i].p_data[ii]) &&
                     im->gdes[i].p_data[ii] != 0.0) {
                     if (im->gdes[i].yrule > 0) {
-                        gfx_line(im->cr,
+                        gfx_line(im,
                                  im->xorigin + ii, im->yorigin,
                                  im->xorigin + ii,
                                  im->yorigin -
                                  im->gdes[i].yrule * im->ysize, 1.0,
                                  im->gdes[i].col);
                     } else if (im->gdes[i].yrule < 0) {
-                        gfx_line(im->cr,
+                        gfx_line(im,
                                  im->xorigin + ii,
                                  im->yorigin - im->ysize,
                                  im->xorigin + ii,
@@ -3030,22 +3046,22 @@ int graph_paint(
                                 double    x = ii - 1 + im->xorigin;
                                 double    y = last_y;
 
-                                gfx_line_fit(im->cr, &x, &y);
+                                gfx_line_fit(im, &x, &y);
                                 cairo_move_to(im->cr, x, y);
                                 x = ii + im->xorigin;
                                 y = last_y;
-                                gfx_line_fit(im->cr, &x, &y);
+                                gfx_line_fit(im, &x, &y);
                                 cairo_line_to(im->cr, x, y);
                             } else {
                                 double    x = ii - 1 + im->xorigin;
                                 double    y = ytr(im,
                                                   im->gdes[i].p_data[ii - 1]);
 
-                                gfx_line_fit(im->cr, &x, &y);
+                                gfx_line_fit(im, &x, &y);
                                 cairo_move_to(im->cr, x, y);
                                 x = ii + im->xorigin;
                                 y = last_y;
-                                gfx_line_fit(im->cr, &x, &y);
+                                gfx_line_fit(im, &x, &y);
                                 cairo_line_to(im->cr, x, y);
                             }
                             draw_on = 1;
@@ -3058,11 +3074,11 @@ int graph_paint(
                                 double    x = ii - 1 + im->xorigin;
                                 double    y = y1;
 
-                                gfx_line_fit(im->cr, &x, &y);
+                                gfx_line_fit(im, &x, &y);
                                 cairo_line_to(im->cr, x, y);
                             };
                             last_y = y1;
-                            gfx_line_fit(im->cr, &x1, &y1);
+                            gfx_line_fit(im, &x1, &y1);
                             cairo_line_to(im->cr, x1, y1);
                         };
 
@@ -3098,7 +3114,7 @@ int graph_paint(
                                                               4)) {
                                 cntI++;
                             }
-                            gfx_new_area(im->cr,
+                            gfx_new_area(im,
                                          backX[0], backY[0],
                                          foreX[0], foreY[0],
                                          foreX[cntI], foreY[cntI],
@@ -3116,10 +3132,9 @@ int graph_paint(
                                                                      1], 4)) {
                                     cntI++;
                                 }
-                                gfx_add_point(im->cr, foreX[cntI],
-                                              foreY[cntI]);
+                                gfx_add_point(im, foreX[cntI], foreY[cntI]);
                             }
-                            gfx_add_point(im->cr, backX[idxI], backY[idxI]);
+                            gfx_add_point(im, backX[idxI], backY[idxI]);
                             while (idxI > 1) {
                                 lastI = idxI;
                                 idxI--;
@@ -3133,12 +3148,11 @@ int graph_paint(
                                                                      1], 4)) {
                                     idxI--;
                                 }
-                                gfx_add_point(im->cr, backX[idxI],
-                                              backY[idxI]);
+                                gfx_add_point(im, backX[idxI], backY[idxI]);
                             }
                             idxI = -1;
                             drawem = 0;
-                            gfx_close_path(im->cr);
+                            gfx_close_path(im);
                         }
                         if (drawem != 0) {
                             drawem = 0;
@@ -3226,7 +3240,7 @@ int graph_paint(
         case GF_HRULE:
             if (im->gdes[i].yrule >= im->minval
                 && im->gdes[i].yrule <= im->maxval)
-                gfx_line(im->cr,
+                gfx_line(im,
                          im->xorigin, ytr(im, im->gdes[i].yrule),
                          im->xorigin + im->xsize, ytr(im,
                                                       im->gdes[i].yrule),
@@ -3235,7 +3249,7 @@ int graph_paint(
         case GF_VRULE:
             if (im->gdes[i].xrule >= im->start
                 && im->gdes[i].xrule <= im->end)
-                gfx_line(im->cr,
+                gfx_line(im,
                          xtr(im, im->gdes[i].xrule), im->yorigin,
                          xtr(im, im->gdes[i].xrule),
                          im->yorigin - im->ysize, 1.0, im->gdes[i].col);
@@ -3483,6 +3497,15 @@ void rrd_graph_init(
     im->grid_dash_off = 1;
     im->tabwidth = 40.0;
     im->zoom = 1;
+    im->font_options = cairo_font_options_create();
+    im->graph_antialias = CAIRO_ANTIALIAS_GRAY;
+
+    cairo_font_options_set_hint_style(im->font_options,
+                                      CAIRO_HINT_STYLE_FULL);
+    cairo_font_options_set_hint_metrics(im->font_options,
+                                        CAIRO_HINT_METRICS_ON);
+    cairo_font_options_set_antialias(im->font_options, CAIRO_ANTIALIAS_GRAY);
+
 
     for (i = 0; i < DIM(graph_col); i++)
         im->graph_col[i] = graph_col[i];
@@ -3587,6 +3610,7 @@ void rrd_graph_options(
             {"step", required_argument, 0, 'S'},
             {"tabwidth", required_argument, 0, 'T'},
             {"font-render-mode", required_argument, 0, 'R'},
+            {"graph-render-mode", required_argument, 0, 'G'},
             {"font-smoothing-threshold", required_argument, 0, 'B'},
             {"watermark", required_argument, 0, 'W'},
             {"alt-y-mrtg", no_argument, 0, 1000},   /* this has no effect it is just here to save old apps from crashing when they use it */
@@ -3870,9 +3894,36 @@ void rrd_graph_options(
             break;
 
         case 'R':
-            /* not supported curently */
+            if (strcmp(optarg, "normal") == 0) {
+                cairo_font_options_set_antialias(im->font_options,
+                                                 CAIRO_ANTIALIAS_GRAY);
+                cairo_font_options_set_hint_style(im->font_options,
+                                                  CAIRO_HINT_STYLE_FULL);
+            } else if (strcmp(optarg, "light") == 0) {
+                cairo_font_options_set_antialias(im->font_options,
+                                                 CAIRO_ANTIALIAS_GRAY);
+                cairo_font_options_set_hint_style(im->font_options,
+                                                  CAIRO_HINT_STYLE_SLIGHT);
+            } else if (strcmp(optarg, "mono") == 0) {
+                cairo_font_options_set_antialias(im->font_options,
+                                                 CAIRO_ANTIALIAS_NONE);
+                cairo_font_options_set_hint_style(im->font_options,
+                                                  CAIRO_HINT_STYLE_FULL);
+            } else {
+                rrd_set_error("unknown font-render-mode '%s'", optarg);
+                return;
+            }
+            break;
+        case 'G':
+            if (strcmp(optarg, "normal") == 0)
+                im->graph_antialias = CAIRO_ANTIALIAS_GRAY;
+            else if (strcmp(optarg, "mono") == 0)
+                im->graph_antialias = CAIRO_ANTIALIAS_NONE;
+            else {
+                rrd_set_error("unknown graph-render-mode '%s'", optarg);
+                return;
+            }
             break;
-
         case 'B':
             /* not supported curently */
             break;

diff --git a/src/rrd_graph.h b/src/rrd_graph.h
index dd03615..502fefe 100644 (file)
--- a/src/rrd_graph.h
+++ b/src/rrd_graph.h
@@ -1,9 +1,17 @@
 #ifndef _RRD_GRAPH_H
 #define _RRD_GRAPH_H
 
+#define y0 cairo_y0
+#define y1 cairo_y1
+#define index cairo_index
+
+#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]"
@@ -36,9 +44,6 @@ enum grc_en { GRC_CANVAS = 0, GRC_BACK, GRC_SHADEA, GRC_SHADEB,
 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
 };
 
@@ -62,6 +67,21 @@ 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];
@@ -156,9 +176,6 @@ 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
     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 */
@@ -193,9 +210,6 @@ 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 */
     double    zoom;
     double    magfact;  /* numerical magnitude */
@@ -214,6 +228,8 @@ typedef struct image_desc_t {
     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 */
 } image_desc_t;
 
 /* Prototypes */
@@ -300,16 +316,6 @@ 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(
@@ -355,10 +361,88 @@ 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

diff --git a/src/rrd_graph_helper.c b/src/rrd_graph_helper.c
index 0991b3b..708c223 100644 (file)
--- a/src/rrd_graph_helper.c
+++ b/src/rrd_graph_helper.c
@@ -497,7 +497,7 @@ int rrd_parse_PVHLAST(
     static int spacecnt = 0;
 
     if (spacecnt == 0) {
-        float     one_space = gfx_get_text_width(im->cr, 0,
+        float     one_space = gfx_get_text_width(im, 0,
                                                  im->
                                                  text_prop[TEXT_PROP_LEGEND].
                                                  font,
@@ -505,7 +505,7 @@ int rrd_parse_PVHLAST(
                                                  text_prop[TEXT_PROP_LEGEND].
                                                  size,
                                                  im->tabwidth, "    ") / 4.0;
-        float     target_space = gfx_get_text_width(im->cr, 0,
+        float     target_space = gfx_get_text_width(im, 0,
                                                     im->
                                                     text_prop
                                                     [TEXT_PROP_LEGEND].font,