Added a 'trash' icon on the Cylinders and Weigthsystem models

So, the Cylinders and Weigthsystems got a new Trash icon,
and the interface already intercepts the clicks ( on all
columns ) and send this to the 'remove' method on boch
models. On the model I'm just filtering the indexes that
are not 'DELETE' and creating a stub method to be filled
later.

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

qt-ui/maintab.cpp

@@ -75,6 +75,14 @@ MainTab::MainTab(QWidget *parent) : QTabWidget(parent),
 	addWeight->setToolTip(tr("Add Weight System"));
 	connect(addWeight, SIGNAL(clicked(bool)), this, SLOT(addWeight_clicked()));
 	addWeight->setEnabled(false);
+
+	connect(ui->cylinders, SIGNAL(clicked(QModelIndex)), ui->cylinders->model(), SLOT(remove(QModelIndex)));
+	connect(ui->weights, SIGNAL(clicked(QModelIndex)), ui->weights->model(), SLOT(remove(QModelIndex)));
+
+	ui->cylinders->setColumnWidth( CylindersModel::REMOVE, 24);
+	ui->cylinders->horizontalHeader()->setResizeMode (CylindersModel::REMOVE , QHeaderView::Fixed);
+	ui->weights->setColumnWidth( WeightModel::REMOVE, 24);
+	ui->cylinders->horizontalHeader()->setResizeMode (WeightModel::REMOVE , QHeaderView::Fixed);
 }
 
 // We need to manually position the 'plus' on cylinder and weight.

qt-ui/models.cpp

@@ -11,6 +11,7 @@
 #include <QColor>
 #include <QBrush>
 #include <QFont>
+#include <QIcon>
 
 extern struct tank_info tank_info[100];
 
@@ -54,7 +55,7 @@ QVariant CylindersModel::headerData(int section, Qt::Orientation orientation, in
 
 int CylindersModel::columnCount(const QModelIndex& parent) const
 {
-	return 7;
+	return COLUMNS;
 }
 
 QVariant CylindersModel::data(const QModelIndex& index, int role) const
@@ -102,6 +103,13 @@ QVariant CylindersModel::data(const QModelIndex& index, int role) const
 			break;
 		}
 	}
+
+	else if (role == Qt::DecorationRole){
+		if (index.column() == REMOVE){
+			ret = QIcon(":trash");
+		}
+	}
+
 	return ret;
 }
 
@@ -164,6 +172,29 @@ void CylindersModel::setDive(dive* d)
 	endInsertRows();
 }
 
+Qt::ItemFlags CylindersModel::flags(const QModelIndex& index) const
+{
+	if (index.column() == REMOVE)
+		return Qt::ItemIsEnabled;
+	return QAbstractItemModel::flags(index);
+}
+
+void CylindersModel::remove(const QModelIndex& index)
+{
+	if (index.column() != REMOVE){
+		return;
+	}
+	// Remove code should be here.
+}
+
+void WeightModel::remove(const QModelIndex& index)
+{
+	if (index.column() != REMOVE){
+		return;
+	}
+	// Remove code should be here.
+}
+
 void WeightModel::clear()
 {
 	if (rows > 0) {
@@ -174,7 +205,7 @@ void WeightModel::clear()
 
 int WeightModel::columnCount(const QModelIndex& parent) const
 {
-	return 2;
+	return COLUMNS;
 }
 
 QVariant WeightModel::data(const QModelIndex& index, int role) const
@@ -195,9 +226,22 @@ QVariant WeightModel::data(const QModelIndex& index, int role) const
 			break;
 		}
 	}
+
+	else if (role == Qt::DecorationRole){
+		if (index.column() == REMOVE){
+			ret = QIcon(":trash");
+		}
+	}
 	return ret;
 }
 
+Qt::ItemFlags WeightModel::flags(const QModelIndex& index) const
+{
+	if (index.column() == REMOVE)
+		return Qt::ItemIsEnabled;
+	return QAbstractItemModel::flags(index);
+}
+
 int WeightModel::rowCount(const QModelIndex& parent) const
 {
 	return rows;

qt-ui/models.h

@@ -38,18 +38,21 @@ private:
 class CylindersModel : public QAbstractTableModel {
 Q_OBJECT
 public:
-	enum Column {TYPE, SIZE, MAXPRESS, START, END, O2, HE};
+	enum Column {REMOVE, TYPE, SIZE, MAXPRESS, START, END, O2, HE,  COLUMNS};
 
 	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;
 
 	void add(cylinder_t *cyl);
 	void clear();
 	void update();
 	void setDive(struct dive *d);
+public slots:
+	void remove(const QModelIndex& index);
 
 private:
 	struct dive *current;
@@ -61,16 +64,19 @@ private:
 class WeightModel : public QAbstractTableModel {
 Q_OBJECT
 public:
-	enum Column {TYPE, WEIGHT};
+	enum Column {REMOVE, TYPE, WEIGHT, COLUMNS};
 	/*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;
 
 	void add(weightsystem_t *weight);
 	void clear();
 	void update();
 	void setDive(struct dive *d);
+public slots:
+	void remove(const QModelIndex& index);
 
 private:
 	struct dive *current;

subsurface.qrc

@@ -3,5 +3,6 @@
     <file alias="star">star.svg</file>
     <file alias="subsurface-icon">subsurface-icon.png</file>
 	<file alias="plus">plus.png</file>
+	<file alias="trash">trash.png</file>
  </qresource>
  </RCC>