Make multiple backends possible

7 files changed, 160 insertions, 103 deletions

diff --git a/include/opie/tododb.h b/include/opie/tododb.h
index 6478363..945f343 100644
--- a/include/opie/tododb.h
+++ b/include/opie/tododb.h
@@ -6,11 +6,12 @@
 
 #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,
@@ -27,11 +28,14 @@ class ToDoDB
     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/include/opie/todoevent.h b/include/opie/todoevent.h
index dd8c0c9..79522b2 100644
--- a/include/opie/todoevent.h
+++ b/include/opie/todoevent.h
@@ -29,6 +29,7 @@ class ToDoEvent {
     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); };
diff --git a/include/opie/todoresource.h b/include/opie/todoresource.h
new file mode 100644
index 0000000..34edb04
--- a/dev/null
+++ b/include/opie/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
diff --git a/libopie/tododb.cpp b/libopie/tododb.cpp
index eb17674..91331d0 100644
--- a/libopie/tododb.cpp
+++ b/libopie/tododb.cpp
@@ -2,84 +2,57 @@
 #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 ){
-    m_fileName = fileName;
-    if( fileName.isEmpty() ){
-        m_fileName = Global::applicationFileName("todolist","todolist.xml");;
-        qWarning("%s", m_fileName.latin1() );
-    }
+namespace {
     
-    load();
-}
-ToDoDB::~ToDoDB()
-{
-
-}
-QValueList<ToDoEvent> ToDoDB::effectiveToDos(const QDate &from, const QDate &to,
-                                             bool all )
-{
-    QValueList<ToDoEvent> events;
-    for( QValueList<ToDoEvent>::Iterator it = m_todos.begin(); it!= m_todos.end(); ++it ){
+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() ){
-            if( (*it).date() >= from && (*it).date() <= to )
-                events.append( (*it) );
-        }else if( all ){
-            events.append( (*it) );
-        }
-    }
-    return events;
-}
-QValueList<ToDoEvent> ToDoDB::effectiveToDos(const QDate &from,
-                                             bool all)
-{
-    return effectiveToDos( from, QDate::currentDate(), all );
-}
-QValueList<ToDoEvent> ToDoDB::overDue()
-{
-    QValueList<ToDoEvent> events;
-    for( QValueList<ToDoEvent>::Iterator it = m_todos.begin(); it!= m_todos.end(); ++it ){   
-        if( (*it).isOverdue() )
-            events.append((*it) );
-    }
-    return events;
-}
-QValueList<ToDoEvent> ToDoDB::rawToDos()
-{
-    return m_todos;
-}
-void ToDoDB::addEvent( const ToDoEvent &event )
-{
-    m_todos.append( event );
-}
-void ToDoDB::editEvent( const ToDoEvent &event )
-{
-    m_todos.remove( event );
-    m_todos.append( event );
-}
-void ToDoDB::removeEvent( const ToDoEvent &event )
-{
-    m_todos.remove( event );
+          map.insert("DateYear",  QString::number( (*it).date().year()  ) );
+          map.insert("DateMonth", QString::number( (*it).date().month() ) );
+          map.insert("DateDay", QString::number( (*it).date().day()  ) );
 }
-void ToDoDB::reload()
-{
-    load();
+        map.insert("Uid", QString::number( (*it).uid() ) );
+        task->setTagName("Task" );
+        task->setAttributes( map );
+        tasks->appendChild(task);
 }
-void ToDoDB::setFileName(const QString &file )
-{
-    m_fileName =file;
+    QFile file( name);
+    if( file.open(IO_WriteOnly ) ){
+      QTextStream stream(&file );
+      stream << "<!DOCTYPE Tasks>" << endl;
+      tasks->save(stream );
+      delete tasks;
+      file.close();
+      return true;
 }
-QString ToDoDB::fileName()const
-{
-    return m_fileName;
+    return false;
 }
-void ToDoDB::load()
-{
+  QValueList<ToDoEvent> load( const QString &name ){
     qWarning("loading tododb" );
-    m_todos.clear();
-    XMLElement *root = XMLElement::load( m_fileName );
+    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
@@ -137,7 +110,7 @@ void ToDoDB::load()
                 //uid
                 dummy = element->attribute("Uid" );
                 dumInt = dummy.toInt(&ok );
-                if(ok ) event.m_uid = dumInt;
+        if(ok ) event.setUid( dumInt );
                 m_todos.append( event );
                 element = element->nextChild(); // next element
             }
@@ -146,45 +119,91 @@ void ToDoDB::load()
         qWarning("could not load" );
     }
     delete root;
+    return m_todos;
 }
-bool ToDoDB::save()
+};
+
+}
+
+ToDoDB::ToDoDB(const QString &fileName = QString::null, ToDoResource *res ){
+    m_fileName = fileName;
+    if( fileName.isEmpty() && res == 0 ){
+        m_fileName = Global::applicationFileName("todolist","todolist.xml");;
+        //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()
 {
-// prepare the XML
-    XMLElement *tasks = new XMLElement( );
-    tasks->setTagName("Tasks" );
+
+}
+QValueList<ToDoEvent> ToDoDB::effectiveToDos(const QDate &from, const QDate &to,
+                                             bool all )
+{
+    QValueList<ToDoEvent> events;
     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()  ) );
+            if( (*it).date() >= from && (*it).date() <= to )
+                events.append( (*it) );
+        }else if( all ){
+            events.append( (*it) );
         }
-        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 events;
     }
-    return false;
+QValueList<ToDoEvent> ToDoDB::effectiveToDos(const QDate &from,
+                                             bool all)
+{
+    return effectiveToDos( from, QDate::currentDate(), all );
+}
+QValueList<ToDoEvent> ToDoDB::overDue()
+{
+    QValueList<ToDoEvent> events;
+    for( QValueList<ToDoEvent>::Iterator it = m_todos.begin(); it!= m_todos.end(); ++it ){   
+        if( (*it).isOverdue() )
+            events.append((*it) );
+    }
+    return events;
+}
+QValueList<ToDoEvent> ToDoDB::rawToDos()
+{
+    return m_todos;
+}
+void ToDoDB::addEvent( const ToDoEvent &event )
+{
+    m_todos.append( event );
+}
+void ToDoDB::editEvent( const ToDoEvent &event )
+{
+    m_todos.remove( event );
+    m_todos.append( event );
+}
+void ToDoDB::removeEvent( const ToDoEvent &event )
+{
+    m_todos.remove( event );
+}
+void ToDoDB::reload()
+{
+    load();
+}
+void ToDoDB::setFileName(const QString &file )
+{
+    m_fileName =file;
+}
+QString ToDoDB::fileName()const
+{
+    return m_fileName;
+}
+void ToDoDB::load()
+{
+    
+}
+bool ToDoDB::save()
+{
+  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
@@ -6,11 +6,12 @@
 
 #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,
@@ -27,11 +28,14 @@ class ToDoDB
     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
@@ -29,6 +29,7 @@ class ToDoEvent {
     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); };
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