Changeset 34 for trunk/lib/Stats.cc

Timestamp:

Jan 12, 2006, 2:17:11 AM (16 years ago)

Author:

Jari Häkkinen

Message:

Started implementing gnuplot into Stats.

File:

• trunk/lib/Stats.cc (modified) (5 diffs)

trunk/lib/Stats.cc

@@ -3 +3 @@
 #include "Stats.h"
 #include "utility.h"
+
+#include <cstdio>
+#include <fstream>
 
 #include <map>
@@ -15 +18 @@
 namespace svnstat{
 
-  Stats::Stats()
-  {
-  }
-
+  Gnuplot Stats::gnuplot_pipe_;
 
   std::vector<u_int> Stats::accumulated(void) const
@@ -53 +53 @@
       vec.resize(rev+1);
       for (; i<rev; i++)
-  vec[i]=0;
+        vec[i]=0;
       vec[rev]=1;
     }
@@ -61 +61 @@
 
   }
+
+  std::string Stats::plot(void) const
+  {
+    char name[]="svnstatXXXXXX";
+    if (mkstemp(name) == -1) {
+      std::cerr << "Failed to get unique filename: " << name << std::endl;
+      exit(-1);
+    }
+    // Jari, temporary empty files are created that needs to be removed.
+    std::string cmd=std::string("set term png; set output '")+name+".png'";
+    gnuplot_pipe_.command(cmd);
+    cmd="plot sin(x) t 'ddd' w lines";
+    gnuplot_pipe_.command(cmd);
+    return std::string(name)+".png";
+  }
 
   void Stats::print(std::ostream& os) const
@@ -79 +94 @@
     os << "</table>\n";
 
-    os << "<p>[Plot to be here.]</p>\n";          
+    os << "<p><img src='" << plot() << "' alt='[svnstat plot]' border=0></p>\n";
   }