prereq.h

   1 #ifndef SETUP_PREREQ_H
   2 #define SETUP_PREREQ_H
   3
   4 #include <map>
   5 #include "proppage.h"
   6 #include "PackageTrust.h"
   7 #include "package_meta.h"
   8
   9 using namespace std;
  10
  11 // keeps the map sorted by name
  12 struct packagemeta_ltcomp
  13 {
  14   bool operator() ( const packagemeta *m1, const packagemeta *m2 )
  15     { return casecompare(m1->name, m2->name) < 0; }
  16 };
  17
  18
  19 class PrereqPage:public PropertyPage
  20 {
  21 public:
  22   PrereqPage ();
  23   virtual ~PrereqPage () { };
  24   bool Create ();
  25   virtual void OnInit ();
  26   virtual void OnActivate ();
  27   virtual long OnNext ();
  28   virtual long OnBack ();
  29   virtual long OnUnattended () { return 0; };
  30 };
  31
  32 class PrereqChecker
  33 {
  34 public:
  35   // checks all dependecies, populates 'unmet'
  36   // returns true if unsatisfied dependencies exist
  37   bool isMet ();
  38
  39   // formats 'unmet' as a string for display
  40   void getUnmetString (std::string &s);
  41
  42   // selects/picks the needed packages that were missing
  43   void selectMissing ();
  44
  45   // notes the current trust (for use in selectMissing)
  46   void setTrust (trusts t) { theTrust = t; };
  47
  48 private:
  49
  50   // this is the actual hash_map that does all the work
  51   static map <packagemeta *, vector <packagemeta *>, packagemeta_ltcomp> unmet;
  52   static trusts theTrust;
  53 };
  54
  55 #endif /* SETUP_PREREQ_H */