Implement the functionality of remove_picture.

Added the remove_picture functionality, with code
shamelessy stolen from remove_event, and hoock it
up with the interface.

Fixes #650

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

dive.c

@@ -2489,9 +2489,22 @@ void dive_set_geodata_from_picture(struct dive *d, struct picture *pic)
 	}
 }
 
-void dive_remove_picture(struct dive *d, struct picture *p)
+static void picture_free( struct picture *p){
+	if (!p)
+		return;
+	free( p->filename );
+	free( p );
+}
+void dive_remove_picture(struct picture *p)
 {
-
+	struct picture **ep = &current_dive->picture_list;
+	while (ep && !same_string((*ep)->filename, p->filename))
+		ep = &(*ep)->next;
+	if (ep) {
+		struct picture *temp = (*ep)->next;
+		picture_free(*ep);
+		*ep = temp;
+	}
 }
 
 /* this always acts on the current divecomputer of the current dive */

dive.h

@@ -311,7 +311,7 @@ struct picture {
 extern struct picture *alloc_picture();
 extern void dive_create_picture(struct dive *d, char *filename, int shift_time);
 extern void dive_add_picture(struct dive *d, struct picture *newpic);
-extern void dive_remove_picture(struct dive *d, struct picture *pic);
+extern void dive_remove_picture(struct picture *pic);
 extern unsigned int dive_get_picture_count(struct dive *d);
 extern void picture_load_exif_data(struct picture *p, timestamp_t *timestamp);
 extern void dive_set_geodata_from_picture(struct dive *d, struct picture *pic);

qt-ui/divepicturewidget.cpp

@@ -89,11 +89,21 @@ QVariant DivePictureModel::data(const QModelIndex &index, int role) const
 		switch (role) {
 		case Qt::UserRole:
 			ret = QVariant::fromValue((void *)stringPixmapCache[key].picture);
+		break;
+		case Qt::DisplayRole:
+			ret = key;
 		}
 	}
 	return ret;
 }
 
+void DivePictureModel::removePicture(const QString &fileUrl)
+{
+	dive_remove_picture(stringPixmapCache[fileUrl].picture);
+	copy_dive(current_dive, &displayed_dive);
+	updateDivePictures();
+}
+
 int DivePictureModel::rowCount(const QModelIndex &parent) const
 {
 	return numberOfPictures;

qt-ui/divepicturewidget.h

@@ -19,6 +19,7 @@ public:
 	virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
 	virtual int rowCount(const QModelIndex &parent = QModelIndex()) const;
 	void updateDivePictures();
+	void removePicture(const QString& fileUrl);
 
 private:
 	DivePictureModel();

qt-ui/profile/divepixmapitem.cpp

@@ -119,9 +119,7 @@ void DivePictureItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
 
 void DivePictureItem::removePicture()
 {
-	/* this is a WIP, it doesn't really *removes* anything, merely hides it.
-	 * good workaround, I still need to figure out how to activelly remove
-	 * it from the model. */
 	button->hide();
 	hide();
+	DivePictureModel::instance()->removePicture(fileUrl);
 }

qt-ui/profile/profilewidget2.cpp

@@ -1352,7 +1352,9 @@ void ProfileWidget2::keyEscAction()
 
 void ProfileWidget2::plotPictures()
 {
-	qDeleteAll(pictures);
+	Q_FOREACH(DivePictureItem *item, pictures){
+		item->deleteLater();
+	}
 	pictures.clear();
 
 	if (printMode)
@@ -1368,7 +1370,7 @@ void ProfileWidget2::plotPictures()
 			continue;
 		DivePictureItem *item = new DivePictureItem();
 		item->setPixmap(m->index(i,0).data(Qt::DecorationRole).value<QPixmap>());
-		item->setFileUrl(m->index(i,0).data(Qt::DisplayPropertyRole).toString());
+		item->setFileUrl(m->index(i,1).data().toString());
 		// let's put the picture at the correct time, but at a fixed "depth" on the profile
 		// not sure this is ideal, but it seems to look right.
 		x = timeAxis->posAtValue(pic->offset.seconds);