show memory usage if available

Common/OS.cpp

@@ -117,6 +117,14 @@ double Cpu()
   return s;
 }
 
+long GetMemoryUsage()
+{
+  long mem = 0;
+  double s = 0.;
+  GetResources(&s, &mem);
+  return mem;
+}
+
 int GetProcessId()
 {
 #if !defined(WIN32) || defined(__CYGWIN__)

Common/OS.h

@@ -13,6 +13,7 @@ double GetTimeInSeconds();
 void SleepInSeconds(double s);
 void CheckResources();
 double Cpu();
+long GetMemoryUsage();
 int GetProcessId();
 std::string GetHostName();
 int UnlinkFile(std::string fileName);

Fltk/statisticsWindow.cpp

@@ -15,6 +15,7 @@
 #include "PView.h"
 #include "Generator.h"
 #include "Context.h"
+#include "OS.h"
 
 void statistics_cb(Fl_Widget *w, void *data)
 {
@@ -167,6 +168,9 @@ statisticsWindow::statisticsWindow(int deltaFontSize)
   }
 
   {
+    memUsage = new Fl_Box(WB, height - BH - WB, width / 2, BH, "");
+    memUsage->align(FL_ALIGN_INSIDE);
+
     Fl_Return_Button *o = new Fl_Return_Button
       (width - BB - WB, height - BH - WB, BB, BH, "Update");
     o->callback(statistics_update_cb);
@@ -274,6 +278,13 @@ void statisticsWindow::compute(bool elementQuality)
   sprintf(label[num], "%g", s[33]); value[num]->value(label[num]); num++;
   sprintf(label[num], "%g", s[34]); value[num]->value(label[num]); num++;
   sprintf(label[num], "%g", s[35]); value[num]->value(label[num]); num++;
+
+  static char mem[256];
+  long m = GetMemoryUsage();
+  if(m){
+    sprintf(mem, "Memory usage: %gMb", GetMemoryUsage()/1024./1024.);
+    memUsage->label(mem);
+  }
 }
 
 void statisticsWindow::show()

Fltk/statisticsWindow.h

@@ -17,6 +17,7 @@ class statisticsWindow{
   Fl_Output *value[50];
   Fl_Button *butt[8];
   Fl_Group *group[3];
+  Fl_Box *memUsage;
   double quality[4][100];
  public:
   statisticsWindow(int deltaFontSize);