Add a method to update the dive pictures on the model.

Call that method from the mainWindow when the dive changes.
The updateDivePictures walks around the events of the first dc (since all
pictures are distributed allong all dive computers) to get the events of
type '123' (I wonder if there's not a better way to save pictures on the
dive, like an linked list of char* named pictures.)

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

qt-ui/divepicturewidget.cpp

@@ -1,10 +1,41 @@
 #include "divepicturewidget.h"
+#include <dive.h>
 
 void DivePictureDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
 {
 	QStyledItemDelegate::paint(painter, option, index);
 }
 
+DivePictureModel::DivePictureModel(QObject *parent): QAbstractTableModel(parent)
+{
+
+}
+
+void DivePictureModel::updateDivePictures(int divenr)
+{
+	beginRemoveRows(QModelIndex(), 0, numberOfPictures-1);
+	numberOfPictures = 0;
+	endRemoveRows();
+
+	struct dive *d = get_dive(divenr);
+	if (!d)
+		return;
+	// All pictures are set in *all* divecomputers. ( waste of memory if > 100 pictures? )
+	// so just get from the first one.
+	struct event *ev = d->dc.events;
+	while(ev){
+		if(ev->type == 123){ // 123 means PICTURE.
+			numberOfPictures++;
+		}
+		ev = ev->next;
+	}
+
+	if (numberOfPictures == 0)
+		return;
+	beginInsertRows(QModelIndex(), 0, numberOfPictures-1);
+	endInsertRows();
+}
+
 int DivePictureModel::columnCount(const QModelIndex &parent) const
 {
 
@@ -17,7 +48,7 @@ QVariant DivePictureModel::data(const QModelIndex &index, int role) const
 
 int DivePictureModel::rowCount(const QModelIndex &parent) const
 {
-
+	return numberOfPictures;
 }
 
 DivePictureWidget::DivePictureWidget(QWidget *parent): QListView(parent)

qt-ui/divepicturewidget.h

@@ -7,9 +7,15 @@
 #include <QThread>
 
 class DivePictureModel : QAbstractTableModel {
+Q_OBJECT
+public:
+	DivePictureModel(QObject *parent);
 	virtual int columnCount(const QModelIndex &parent = QModelIndex()) const;
 	virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
 	virtual int rowCount(const QModelIndex &parent = QModelIndex()) const;
+	void updateDivePictures(int divenr);
+private:
+	int numberOfPictures;
 };
 
 class DivePictureDelegate : QStyledItemDelegate {

qt-ui/mainwindow.cpp

@@ -59,7 +59,8 @@ MainWindow::MainWindow() : QMainWindow(),
 	yearlyStatsModel(0),
 	state(VIEWALL),
 	updateManager(0),
-	fakeDiveId(0)
+	fakeDiveId(0),
+	divePictureModel(new DivePictureModel(this))
 {
 	Q_ASSERT_X(m_Instance == NULL, "MainWindow", "MainWindow recreated!");
 	m_Instance = this;
@@ -165,6 +166,7 @@ void MainWindow::current_dive_changed(int divenr)
 	 */
 	ui.newProfile->plotDives(QList<dive *>() << (current_dive));
 	ui.InfoWidget->updateDiveInfo(divenr);
+	divePictureModel->updateDivePictures(divenr);
 }
 
 void MainWindow::on_actionNew_triggered()

qt-ui/mainwindow.h

@@ -180,6 +180,7 @@ private:
 	bool plannerStateClean();
 	void createFakeDiveForAddAndPlan();
 	int fakeDiveId;
+	DivePictureModel *divePictureModel;
 };
 
 #endif // MAINWINDOW_H