Changeset 6976 for trunk/MagicSoft/Mars/mbase

Timestamp:

04/22/05 18:28:07 (20 years ago)

Author:

tbretz

Message:

*** empty log message ***

Location:

trunk/MagicSoft/Mars/mbase

Files:

• MStatusArray.cc (modified) (4 diffs)
• MStatusArray.h (modified) (2 diffs)

trunk/MagicSoft/Mars/mbase/MStatusArray.cc

@@ -29 +29 @@
 //  Helper class for MStatusDisplay
 //
+// If you want to read a MStatusArray (normally with name MStatusDisplay)
+// it is recommended to do it like this:
+//     TFile f("myfile.root", "read");
+//     MStatusArray arr;
+//     arr.Read();
+//
+// If you want to use TFile::Get or TFile::GetObject you should switch off
+// addding Histograms automatically to the current directory first:
+//     TFile f("myfile.root", "read");
+//     TH1::AddDirectory(kFALSE);
+//     f.Get("MStatusDisplay");
+//
 //////////////////////////////////////////////////////////////////////////////
 #include "MStatusArray.h"
 
+#include <TH1.h>      // TH1::AddDirectoryStatus();
 #include <TClass.h>
 #include <TCanvas.h>
@@ -44 +57 @@
 using namespace std;
 
+// --------------------------------------------------------------------------
+//
+// If o==NULL a new status display is created, otherwise the one with name o
+// is searched in gROOT->GetListOfSpecials().
+// In this display the contents of the MStatusArray is displayed.
+//
 TObject *MStatusArray::DisplayIn(Option_t *o) const
 {
@@ -63 +82 @@
 }
 
+// --------------------------------------------------------------------------
+//
+// Display the contents of the given tab in the display given as argument.
+//
 void MStatusArray::DisplayIn(MStatusDisplay &d, const char *tab) const
 {
@@ -224 +247 @@
 // --------------------------------------------------------------------------
 //
+// Switch off adding histograms to current directory before reading.
+// Switch back
+//
+Int_t MStatusArray::Read(const char *name)
+{
+    const Bool_t store = TH1::AddDirectoryStatus();
+    TH1::AddDirectory(kFALSE);
+    const Int_t rc = TObjArray::Read(name?name:"MStatusDisplay");
+    TH1::AddDirectory(store);
+    return rc;
+}
+
+// --------------------------------------------------------------------------
+//
 // Print recursively all objects in this and sub-pads. If !option.IsNull()
 // only objects in the corresponding pad are printed.

trunk/MagicSoft/Mars/mbase/MStatusArray.h

@@ -30 +30 @@
 
     void Print(Option_t *o="") const;
+    void Print(Option_t *wildcard, Option_t *option) const
+    {
+        Print(wildcard);
+    }
 
     TObject *FindObject(const char *object, const char *base) const;
@@ -35 +39 @@
     TObject *FindObject(const TObject *o) const { return 0; }
 
+    Int_t Read(const char *name=NULL);
+
     ClassDef(MStatusArray, 0) // Helper class for status display
 };