Begin to Cleanup the Models, trying to reduce boilerplate.

The Model View system in Qt is *very* verbose, this is the
beginning of a series of patches that will concentrate
the boilerplate somewhere and reduce the amount of lines
and will also try to make the code cleaner and easyer to
understand,

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>

qt-ui/models.cpp

@@ -25,11 +25,16 @@ QFont defaultModelFont()
 	return font;
 }
 
-CylindersModel::CylindersModel(QObject* parent): QAbstractTableModel(parent), current(0), rows(0)
+CleanerTableModel::CleanerTableModel(): QAbstractTableModel()
 {
 }
 
-QVariant CylindersModel::headerData(int section, Qt::Orientation orientation, int role) const
+int CleanerTableModel::columnCount(const QModelIndex& parent) const
+{
+	return headers.count();
+}
+
+QVariant CleanerTableModel::headerData(int section, Qt::Orientation orientation, int role) const
 {
 	QVariant ret;
 
@@ -41,22 +46,19 @@ QVariant CylindersModel::headerData(int section, Qt::Orientation orientation, in
 		ret = defaultModelFont();
 		break;
 	case Qt::DisplayRole:
-		switch(section) {
+		return headers.at(section);
-		case TYPE:		ret = tr("Type"); break;
-		case SIZE:		ret = tr("Size"); break;
-		case WORKINGPRESS:	ret = tr("WorkPress"); break;
-		case START:		ret = tr("StartPress"); break;
-		case END:		ret = tr("EndPress  "); break;
-		case O2:		ret = tr("O2% "); break;
-		case HE:		ret = tr("He% "); break;
 	}
 }
-	return ret;
-}
 
-int CylindersModel::columnCount(const QModelIndex& parent) const
+void CleanerTableModel::setHeaderDataStrings(const QStringList& newHeaders)
 {
-	return COLUMNS;
+	headers = newHeaders;
+}
+
+CylindersModel::CylindersModel(QObject* parent): current(0), rows(0)
+{
+	//	enum{REMOVE, TYPE, SIZE, WORKINGPRESS, START, END, O2, HE,};
+	setHeaderDataStrings( QStringList() <<  "" << tr("Type") << tr("Size") << tr("WorkPress") << tr("StartPress") <<  tr("O2%") << tr("HE"));
 }
 
 static QVariant percent_string(fraction_t fraction)

qt-ui/models.h

@@ -17,6 +17,19 @@
 
 QFont defaultModelFont();
 
+// Encapsulates Boilerplate.
+class CleanerTableModel : public QAbstractTableModel{
+	Q_OBJECT
+public:
+	CleanerTableModel();
+    virtual int columnCount(const QModelIndex& parent = QModelIndex()) const;
+    virtual QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;
+protected:
+	void setHeaderDataStrings(const QStringList& headers);
+private:
+	QStringList headers;
+};
+
 /* Encapsulates the tank_info global variable
  * to show on Qt's Model View System.*/
 class TankInfoModel : public QAbstractTableModel {
@@ -67,14 +80,12 @@ private:
 
 /* Encapsulation of the Cylinder Model, that presents the
  * Current cylinders that are used on a dive. */
-class CylindersModel : public QAbstractTableModel {
+class CylindersModel : public CleanerTableModel {
 Q_OBJECT
 public:
-	enum Column {REMOVE, TYPE, SIZE, WORKINGPRESS, START, END, O2, HE, COLUMNS};
+	enum Column {REMOVE, TYPE, SIZE, WORKINGPRESS, START, END, O2, HE};
 
 	explicit CylindersModel(QObject* parent = 0);
-	/*reimp*/ QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;
-	/*reimp*/ int columnCount(const QModelIndex& parent = QModelIndex()) const;
 	/*reimp*/ QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const;
 	/*reimp*/ int rowCount(const QModelIndex& parent = QModelIndex()) const;
 	/*reimp*/ Qt::ItemFlags flags(const QModelIndex& index) const;

qt-ui/subsurfacewebservices.cpp

@@ -32,7 +32,6 @@ SubsurfaceWebServices::SubsurfaceWebServices(QWidget* parent, Qt::WindowFlags f)
 	ui.userID->setText(s.value("webservice_uid").toString());
 }
 
-
 static void clear_table(struct dive_table *table)
 {
 	int i;