Make multiple backends possible

4 files changed, 148 insertions, 110 deletions

diff --git a/libopie/tododb.cpp b/libopie/tododb.cpp
index eb17674..91331d0 100644
--- a/libopie/tododb.cpp
+++ b/libopie/tododb.cpp
@@ -1,18 +1,140 @@
 
 #include <qdir.h>
 #include <opie/tododb.h>
 #include <opie/xmltree.h>
+#include <opie/todoresource.h>
 #include <qpe/palmtoprecord.h>
 #include <qpe/global.h>
 
-ToDoDB::ToDoDB(const QString &fileName = QString::null ){
+namespace {
+
+class FileToDoResource : public ToDoResource {
+public:
+  FileToDoResource() {};
+  bool save(const QString &name, const QValueList<ToDoEvent> &m_todos ){
+    // prepare the XML
+    XMLElement *tasks = new XMLElement( );
+    tasks->setTagName("Tasks" );
+    for( QValueList<ToDoEvent>::ConstIterator it = m_todos.begin(); it != m_todos.end(); ++it ){
+        XMLElement::AttributeMap map;
+        XMLElement *task = new XMLElement();
+        map.insert( "Completed", QString::number((int)(*it).isCompleted() ) );
+        map.insert( "HasDate", QString::number((int)(*it).hasDate() ) );
+        map.insert( "Priority", QString::number( (*it).priority() ) );
+        if(!(*it).category().isEmpty() ){
+          QArray<int> arrat(1);
+          arrat = Qtopia::Record::idsFromString(  (*it).category() );
+          map.insert( "Categories", QString::number( arrat[0] ) );
+        }else
+          map.insert( "Categories", QString::null );
+        map.insert( "Description", (*it).description() );
+        if( (*it).hasDate() ){
+          map.insert("DateYear",  QString::number( (*it).date().year()  ) );
+          map.insert("DateMonth", QString::number( (*it).date().month() ) );
+          map.insert("DateDay", QString::number( (*it).date().day()  ) );
+        }
+        map.insert("Uid", QString::number( (*it).uid() ) );
+        task->setTagName("Task" );
+        task->setAttributes( map );
+        tasks->appendChild(task);
+    }
+    QFile file( name);
+    if( file.open(IO_WriteOnly ) ){
+      QTextStream stream(&file );
+      stream << "<!DOCTYPE Tasks>" << endl;
+      tasks->save(stream );
+      delete tasks;
+      file.close();
+      return true;
+    }
+    return false;
+  }
+  QValueList<ToDoEvent> load( const QString &name ){
+    qWarning("loading tododb" );
+    QValueList<ToDoEvent> m_todos;
+    XMLElement *root = XMLElement::load( name );
+    if(root != 0l ){ // start parsing
+      qWarning("ToDoDB::load tagName(): %s", root->tagName().latin1()  );
+        //if( root->tagName() == QString::fromLatin1("Tasks" ) ){// Start
+      XMLElement *element = root->firstChild();
+      element = element->firstChild();
+      while( element ){
+        qWarning("ToDoDB::load element tagName() : %s", element->tagName().latin1() );
+        QString dummy;
+        ToDoEvent event;
+        bool ok;
+        int dumInt;
+        // completed
+        dummy = element->attribute("Completed" );
+        dumInt = dummy.toInt(&ok );
+        if(ok ) event.setCompleted( dumInt == 0 ? false : true );
+        // hasDate
+        dummy = element->attribute("HasDate" );
+        dumInt = dummy.toInt(&ok );
+        if(ok ) event.setHasDate( dumInt == 0 ? false: true );
+        // set the date
+        bool hasDa = dumInt;
+        if ( hasDa ) { //parse the date
+          int year, day, month = 0;
+          year = day = month;
+          // year
+          dummy = element->attribute("DateYear" );
+          dumInt = dummy.toInt(&ok );
+          if( ok ) year = dumInt;
+          // month
+          dummy = element->attribute("DateMonth" );
+          dumInt = dummy.toInt(&ok );
+          if(ok ) month = dumInt;
+          dummy = element->attribute("DateDay" );
+          dumInt = dummy.toInt(&ok );
+          if(ok ) day = dumInt;
+          // set the date
+          QDate date( year, month, day );
+          event.setDate( date);
+        }
+        dummy = element->attribute("Priority" );
+        dumInt = dummy.toInt(&ok );
+        if(!ok ) dumInt = ToDoEvent::NORMAL;
+        event.setPriority( dumInt );
+        //description
+        dummy = element->attribute("Description" );
+        event.setDescription( dummy );
+        // category
+        dummy = element->attribute("Categories" );
+        dumInt = dummy.toInt(&ok );
+        if(ok ) {
+          QArray<int> arrat(1);
+          arrat[0] = dumInt;
+          event.setCategory( Qtopia::Record::idsToString( arrat ) );
+        }
+        //uid
+        dummy = element->attribute("Uid" );
+        dumInt = dummy.toInt(&ok );
+        if(ok ) event.setUid( dumInt );
+        m_todos.append( event );
+        element = element->nextChild(); // next element
+      }
+      //}
+    }else {
+      qWarning("could not load" );
+    }
+    delete root;
+    return m_todos;
+  }
+};
+
+}
+
+ToDoDB::ToDoDB(const QString &fileName = QString::null, ToDoResource *res ){
     m_fileName = fileName;
-    if( fileName.isEmpty() ){
+    if( fileName.isEmpty() && res == 0 ){
         m_fileName = Global::applicationFileName("todolist","todolist.xml");;
-        qWarning("%s", m_fileName.latin1() );
+        //qWarning("%s", m_fileName.latin1() );
+    }else if(res == 0 ){ // let's create a ToDoResource for xml
+      res = new FileToDoResource();
     }
-    
+    m_res = res;
     load();
 }
 ToDoDB::~ToDoDB()
 {
@@ -76,116 +198,13 @@ QString ToDoDB::fileName()const
     return m_fileName;
 }
 void ToDoDB::load()
 {
-    qWarning("loading tododb" );
-    m_todos.clear();
-    XMLElement *root = XMLElement::load( m_fileName );
-    if(root != 0l ){ // start parsing
-        qWarning("ToDoDB::load tagName(): %s", root->tagName().latin1()  );
-        //if( root->tagName() == QString::fromLatin1("Tasks" ) ){// Start
-            XMLElement *element = root->firstChild();
-            element = element->firstChild();
-            while( element ){
-                qWarning("ToDoDB::load element tagName() : %s", element->tagName().latin1() );
-                QString dummy;
-                ToDoEvent event;
-                bool ok;
-                int dumInt;
-                // completed
-                dummy = element->attribute("Completed" );
-                dumInt = dummy.toInt(&ok );
-                if(ok ) event.setCompleted( dumInt == 0 ? false : true );
-                // hasDate
-                dummy = element->attribute("HasDate" );
-                dumInt = dummy.toInt(&ok );
-                if(ok ) event.setHasDate( dumInt == 0 ? false: true );
-                // set the date
-                bool hasDa = dumInt;
-                if ( hasDa ) { //parse the date
-                    int year, day, month = 0;
-                    year = day = month;
-                    // year
-                    dummy = element->attribute("DateYear" );
-                    dumInt = dummy.toInt(&ok );
-                    if( ok ) year = dumInt;
-                    // month
-                    dummy = element->attribute("DateMonth" );
-                    dumInt = dummy.toInt(&ok );
-                    if(ok ) month = dumInt;
-                    dummy = element->attribute("DateDay" );
-                    dumInt = dummy.toInt(&ok );
-                    if(ok ) day = dumInt;
-                    // set the date
-                    QDate date( year, month, day );
-                    event.setDate( date);
-                }
-                dummy = element->attribute("Priority" );
-                dumInt = dummy.toInt(&ok );
-                if(!ok ) dumInt = ToDoEvent::NORMAL;
-                event.setPriority( dumInt );
-                //description
-                dummy = element->attribute("Description" );
-                event.setDescription( dummy );
-                // category
-                dummy = element->attribute("Categories" );
-                dumInt = dummy.toInt(&ok );
-                if(ok ) {
-                    QArray<int> arrat(1);
-                    arrat[0] = dumInt;
-                    event.setCategory( Qtopia::Record::idsToString( arrat ) );
-                }
-                //uid
-                dummy = element->attribute("Uid" );
-                dumInt = dummy.toInt(&ok );
-                if(ok ) event.m_uid = dumInt;
-                m_todos.append( event );
-                element = element->nextChild(); // next element
-            }
-            //}
-    }else {
-        qWarning("could not load" );
-    }
-    delete root;
+    
 }
 bool ToDoDB::save()
 {
-// prepare the XML
-    XMLElement *tasks = new XMLElement( );
-    tasks->setTagName("Tasks" );
-    for( QValueList<ToDoEvent>::Iterator it = m_todos.begin(); it != m_todos.end(); ++it ){
-        XMLElement::AttributeMap map;
-        XMLElement *task = new XMLElement();
-        map.insert( "Completed", QString::number((int)(*it).isCompleted() ) );
-        map.insert( "HasDate", QString::number((int)(*it).hasDate() ) );
-        map.insert( "Priority", QString::number( (*it).priority() ) );
-        if(!(*it).category().isEmpty() ){
-            QArray<int> arrat(1);
-            arrat = Qtopia::Record::idsFromString(  (*it).category() );
-            map.insert( "Categories", QString::number( arrat[0] ) );
-        }else
-            map.insert( "Categories", QString::null );
-        map.insert( "Description", (*it).description() );
-        if( (*it).hasDate() ){
-            map.insert("DateYear",  QString::number( (*it).date().year()  ) );
-            map.insert("DateMonth", QString::number( (*it).date().month() ) );
-            map.insert("DateDay", QString::number( (*it).date().day()  ) );
-        }
-        map.insert("Uid", QString::number( (*it).uid() ) );
-        task->setTagName("Task" );
-        task->setAttributes( map );
-        tasks->appendChild(task);
-    }
-    QFile file( m_fileName);
-    if( file.open(IO_WriteOnly ) ){
-        QTextStream stream(&file );
-        stream << "<!DOCTYPE Tasks>" << endl;
-        tasks->save(stream );
-        delete tasks;
-        file.close();
-        return true;
-    }
-    return false;
+  return m_res->save( m_fileName, m_todos );
 }
 
 
 
diff --git a/libopie/tododb.h b/libopie/tododb.h
index 6478363..945f343 100644
--- a/libopie/tododb.h
+++ b/libopie/tododb.h
@@ -5,13 +5,14 @@
 #include <qvaluelist.h>
 
 #include <opie/todoevent.h>
 
+class ToDoResource;
 class ToDoDB
 {
  public:
     // if no argument is supplied pick the default book 
-    ToDoDB(const QString &fileName = QString::null );
+    ToDoDB(const QString &fileName = QString::null, ToDoResource* resource= 0 );
     ~ToDoDB();
     QValueList<ToDoEvent> effectiveToDos(const QDate &from,
                                          const QDate &to,
                                          bool includeNoDates = true);
@@ -26,13 +27,16 @@ class ToDoDB
     void reload();
     void setFileName(const QString & );
     QString fileName()const;
     bool save();
+    ToDoResource *resource();
+    void setResource(ToDoResource* res);
 
  private:
     class ToDoDBPrivate;
     ToDoDBPrivate *d;
     QString m_fileName;
+    ToDoResource *m_res;
     QValueList<ToDoEvent> m_todos;
     void load();
 };
 
diff --git a/libopie/todoevent.h b/libopie/todoevent.h
index dd8c0c9..79522b2 100644
--- a/libopie/todoevent.h
+++ b/libopie/todoevent.h
@@ -28,8 +28,9 @@ class ToDoEvent {
     void setDate( QDate date );
     void setDescription(const QString& );
     bool isOverdue();
 
+    void setUid(int id) {m_uid = id; };
     bool operator<(const ToDoEvent &toDoEvent )const;
     bool operator<=(const ToDoEvent &toDoEvent )const;
     bool operator!=(const ToDoEvent &toDoEvent )const { return !(*this == toDoEvent); };
     bool operator>(const ToDoEvent &toDoEvent )const;
diff --git a/libopie/todoresource.h b/libopie/todoresource.h
new file mode 100644
index 0000000..34edb04
--- a/dev/null
+++ b/libopie/todoresource.h
@@ -0,0 +1,14 @@
+
+
+#ifndef opietodoresource_h
+#define opietodoresource_h
+
+class ToDoEvent;
+class ToDoResource {
+ public:
+  ToDoResource( ) {};
+  virtual QValueList<ToDoEvent> load(const QString &file ) = 0;
+  virtual bool save( const QString &file, const QValueList<ToDoEvent> & ) = 0;
+};
+
+#endif