Added --only-graph option -- Piotr Kodzis <Piotr.Kodzis@inteligo.pl>

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@240 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/doc/rrdgraph.src b/doc/rrdgraph.src
index 0f8489d..8bd8a1e 100644 (file)
--- a/doc/rrdgraph.src
+++ b/doc/rrdgraph.src
@@ -12,7 +12,7 @@ E<lt>B<L<data definition|rrdgraph_data/DEF>>E<gt>[ ...]
 
 =head1 DESCRIPTION
 
-The B<graph> function of B<RRDtool> is used to represent the
+The B<graph> function of B<RRDtool> is used to present the
 data from an B<RRD> to a human viewer.  Its main purpose is to
 create a nice graphical representation but it can also generate
 a numerical report.
@@ -103,10 +103,15 @@ Z<>
 
 B<[-w|--width E<lt>pixelsE<gt>]>
 B<[-h|--heigth E<lt>pixelsE<gt>]>
+B<[-j|--only-graph]>
 
 The width and height of the B<canvas> (the part of the graph with
 the actual lines and such). Defaults are 400 pixels by 100 pixels.
 
+If you sepcify the B<--only-graph> and set the hight < 32 pixels you will
+get a tiny graph image to use as an icon in a potential overview. All
+labeling will be stripped off the graph.
+
 Z<>
 
 =item Limits

diff --git a/src/rrd_graph.c b/src/rrd_graph.c
index afcbc01..36c8054 100644 (file)
--- a/src/rrd_graph.c
+++ b/src/rrd_graph.c
@@ -1357,7 +1357,7 @@ leg_place(image_desc_t *im)
     char  prt_fctn; /*special printfunctions */
     int  *legspace;
 
-  if( !(im->extra_flags & NOLEGEND) ) {
+  if( !(im->extra_flags & NOLEGEND) & !(im->extra_flags & ONLY_GRAPH) ) {
     if ((legspace = malloc(im->gdes_c*sizeof(int)))==NULL){
        rrd_set_error("malloc for legspace");
        return -1;
@@ -1932,7 +1932,7 @@ grid_paint(image_desc_t   *im)
                  im->title);
 
     /* graph labels */
-    if( !(im->extra_flags & NOLEGEND) ) {
+    if( !(im->extra_flags & NOLEGEND) & !(im->extra_flags & ONLY_GRAPH) ) {
       for(i=0;i<im->gdes_c;i++){
        if(im->gdes[i].legend[0] =='\0')
            continue;
@@ -2084,11 +2084,20 @@ graph_size_location(image_desc_t *im, int elements, int piechart )
 #if 0
        Xlegend  =0,    Ylegend  =0,
 #endif
-       Xspacing =10,   Yspacing =10;
+        Xspacing =10,  Yspacing =10;
 
-    if (im->ylegend[0] != '\0') {
-       Xvertical = im->text_prop[TEXT_PROP_LEGEND].size *2;
-       Yvertical = im->text_prop[TEXT_PROP_LEGEND].size * (strlen(im->ylegend)+1);
+    if (im->extra_flags & ONLY_GRAPH) {
+        if ( im->ysize > 32 ) {
+           rrd_set_error("height > 32 is not possible with --only-graph option");
+           return -1;
+        }
+       Xspacing =0;
+        Yspacing =0;
+    } else {
+        if (im->ylegend[0] != '\0') {
+           Xvertical = im->text_prop[TEXT_PROP_LEGEND].size *2;
+           Yvertical = im->text_prop[TEXT_PROP_LEGEND].size * (strlen(im->ylegend)+1);
+        }
     }
 
     if (im->title[0] != '\0') {
@@ -2134,10 +2143,21 @@ graph_size_location(image_desc_t *im, int elements, int piechart )
     ** forget about it at all; the legend will have to fit in the
     ** size already allocated.
     */
-    im->ximg = Xylabel + Xmain + Xpie + Xspacing;
+    im->ximg = Xmain;
+
+    if ( !(im->extra_flags & ONLY_GRAPH) ) {
+        im->ximg = Xylabel + Xmain + Xpie + Xspacing;
+    }
+
     if (Xmain) im->ximg += Xspacing;
     if (Xpie) im->ximg += Xspacing;
-    im->xorigin = Xspacing + Xylabel;
+
+    if (im->extra_flags & ONLY_GRAPH) {
+       im->xorigin = 0;
+    } else {
+       im->xorigin = Xspacing + Xylabel;
+    }
+
     if (Xtitle > im->ximg) im->ximg = Xtitle;
     if (Xvertical) {
        im->ximg += Xvertical;
@@ -2155,9 +2175,21 @@ graph_size_location(image_desc_t *im, int elements, int piechart )
     */
 
     /* reserve space for main and/or pie */
-    im->yimg = Ymain + Yxlabel;
+
+    if (im->extra_flags & ONLY_GRAPH) {
+        im->yimg = Ymain;
+    } else {
+        im->yimg = Ymain + Yxlabel;
+    }
+
     if (im->yimg < Ypie) im->yimg = Ypie;
-    im->yorigin = im->yimg - Yxlabel;
+
+    if (im->extra_flags & ONLY_GRAPH) {
+        im->yorigin = im->yimg;
+    } else {
+        im->yorigin = im->yimg - Yxlabel;
+    }
+
     /* reserve space for the title *or* some padding above the graph */
     if (Ytitle) {
        im->yimg += Ytitle;
@@ -2260,9 +2292,11 @@ graph_paint(image_desc_t *im, char ***calcpr)
 
   if (!calc_horizontal_grid(im))
     return -1;
+
   if (im->gridfit)
     apply_gridfit(im);
 
+
 /**************************************************************
  *** Calculating sizes and locations became a bit confusing ***
  *** so I moved this into a separate function.              ***
@@ -2294,8 +2328,8 @@ graph_paint(image_desc_t *im, char ***calcpr)
       areazero = im->minval;
     if (im->maxval < 0.0)
       areazero = im->maxval;
-  
-    axis_paint(im);
+    if( !(im->extra_flags & ONLY_GRAPH) )  
+      axis_paint(im);
   }
 
   if (piechart) {
@@ -2447,7 +2481,8 @@ graph_paint(image_desc_t *im, char ***calcpr)
     im->draw_y_grid=0;
   }
   /* grid_paint also does the text */
-  grid_paint(im);
+  if( !(im->extra_flags & ONLY_GRAPH) )  
+    grid_paint(im);
   
   /* the RULES are the last thing to paint ... */
   for(i=0;i<im->gdes_c;i++){    
@@ -2740,6 +2775,7 @@ rrd_graph_options(int argc, char *argv[],image_desc_t *im)
            {"lazy",       no_argument,       0,  'z'},
             {"zoom",       required_argument, 0,  'm'},
            {"no-legend",  no_argument,       0,  'g'},
+           {"only-graph", no_argument,       0,  'j'},
            {"alt-y-grid", no_argument,       0,  'Y'},
             {"no-minor",   no_argument,       0,  'I'},
            {"alt-autoscale", no_argument,    0,  'A'},
@@ -2753,7 +2789,7 @@ rrd_graph_options(int argc, char *argv[],image_desc_t *im)
 
 
        opt = getopt_long(argc, argv, 
-                         "s:e:x:y:v:w:h:iu:l:rb:oc:n:m:t:f:a:I:zgYAMX:S:N",
+                         "s:e:x:y:v:w:h:iu:l:rb:oc:n:m:t:f:a:I:zgjYAMX:S:N",
                          long_options, &option_index);
 
        if (opt == EOF)
@@ -2772,6 +2808,9 @@ rrd_graph_options(int argc, char *argv[],image_desc_t *im)
        case 'M':
            im->extra_flags |= ALTAUTOSCALE_MAX;
            break;
+       case 'j':
+           im->extra_flags |= ONLY_GRAPH;
+           break;
        case 'g':
            im->extra_flags |= NOLEGEND;
            break;

diff --git a/src/rrd_graph.h b/src/rrd_graph.h
index 09c2f1d..0339e0b 100644 (file)
--- a/src/rrd_graph.h
+++ b/src/rrd_graph.h
@@ -13,6 +13,7 @@
 #define ALTAUTOSCALE_MAX 0x04  /* use alternative algorithm to find upper bounds */
 #define NOLEGEND       0x08    /* use no legend */
 #define NOMINOR         0x20    /* Turn off minor gridlines */
+#define ONLY_GRAPH      0x24   /* use only graph */
 
 
 enum tmt_en {TMT_SECOND=0,TMT_MINUTE,TMT_HOUR,TMT_DAY,

diff --git a/src/rrd_tool.c b/src/rrd_tool.c
index d23094f..2cad365 100644 (file)
--- a/src/rrd_tool.c
+++ b/src/rrd_tool.c
@@ -95,6 +95,7 @@ void PrintUsage(char *cmd)
           "\t\t[-u|--upper-limit value] [-z|--lazy]\n"
           "\t\t[-l|--lower-limit value] [-r|--rigid]\n"
            "\t\t[-g|--no-legend]\n"
+           "\t\t[-j|--only-graph]\n"
           "\t\t[--font FONTTAG:size:font]\n"
            "\t\t[--zoom factor]\n"       
           "\t\t[--alt-autoscale]\n"