Maintain the selection when aborting "dive add"

We remember what was selected before and restore it. Maybe there's a more
"Qt way" of doing this, but my implementation appears to work :-)

Also remove unconditional debug output that snuck into an earlier commit.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

qt-ui/divelistview.cpp

@@ -112,6 +112,30 @@ void DiveListView::fixMessyQtModelBehaviour()
 	}
 }
 
+// this only remembers dives that were selected, not trips
+void DiveListView::rememberSelection()
+{
+	selectedDives.clear();
+	QItemSelection selection = selectionModel()->selection();
+	Q_FOREACH(const QModelIndex& index , selection.indexes()) {
+		if (index.column() != 0) // We only care about the dives, so, let's stick to rows and discard columns.
+			continue;
+		struct dive *d = (struct dive *) index.data(DiveTripModel::DIVE_ROLE).value<void*>();
+		if (d)
+			selectedDives.push_front(get_divenr(d));
+	}
+}
+
+void DiveListView::restoreSelection()
+{
+	unselectDives();
+	Q_FOREACH(int i, selectedDives) {
+		struct dive *d = get_dive(i);
+		if (d)
+			selectDive(d);
+	}
+}
+
 void DiveListView::unselectDives()
 {
 	selectionModel()->clearSelection();

qt-ui/divelistview.h

@@ -26,6 +26,8 @@ public:
 	bool eventFilter(QObject* , QEvent* );
 	void unselectDives();
 	void selectDive(struct dive *, bool scrollto = false, bool toggle = false);
+	void rememberSelection();
+	void restoreSelection();
 	void contextMenuEvent(QContextMenuEvent *event);
 	QSet<dive_trip_t *> selectedTrips;
 
@@ -50,6 +52,7 @@ signals:
 private:
 	bool mouseClickSelection;
 	QList<int> expandedRows;
+	QList<int> selectedDives;
 	int sortColumn;
 	Qt::SortOrder currentOrder;
 	DiveTripModel::Layout currentLayout;

qt-ui/maintab.cpp

@@ -493,7 +493,6 @@ void MainTab::acceptChanges()
 		}
 
 	}
-	save_dive(stdout, current_dive);
 	if (editMode == ADD || editMode == MANUALLY_ADDED_DIVE) {
 		// clean up the dive data (get duration, depth information from samples)
 		fixup_dive(current_dive);
@@ -558,7 +557,6 @@ void MainTab::rejectChanges()
 		if (lastMode == ADD) {
 			// clean up
 			DivePlannerPointsModel::instance()->cancelPlan();
-			delete_single_dive(selected_dive);
 		} else if (lastMode == MANUALLY_ADDED_DIVE ) {
 			DivePlannerPointsModel::instance()->undoEdition(); // that's BOGUS... just copy the original dive back and be done with it...
 		}
@@ -609,6 +607,11 @@ void MainTab::rejectChanges()
 			}
 		}
 		updateGpsCoordinates(curr);
+		if (lastMode == ADD) {
+			delete_single_dive(selected_dive);
+			mainWindow()->dive_list()->reload(DiveTripModel::CURRENT);
+			mainWindow()->dive_list()->restoreSelection();
+		}
 		if (selected_dive >= 0) {
 			multiEditEquipmentPlaceholder = *get_dive(selected_dive);
 			cylindersModel->setDive(&multiEditEquipmentPlaceholder);
@@ -627,14 +630,15 @@ void MainTab::rejectChanges()
 	ui.equipmentButtonBox->hide();
 	notesBackup.clear();
 	resetPallete();
+	editMode = NONE;
 	if (lastMode == ADD || lastMode == MANUALLY_ADDED_DIVE) {
 		// more clean up
 		updateDiveInfo(selected_dive);
 		mainWindow()->showProfile();
-		mainWindow()->refreshDisplay();
+		// we already reloaded the divelist above, so don't recreate it or we'll lose the selection
+		mainWindow()->refreshDisplay(false);
 		DivePlannerPointsModel::instance()->setPlanMode(DivePlannerPointsModel::NOTHING);
 	}
-	editMode = NONE;
 }
 #undef EDIT_TEXT2
 

qt-ui/mainwindow.cpp

@@ -65,12 +65,13 @@ MainWindow::MainWindow() : helpView(0)
 }
 
 // this gets called after we download dives from a divecomputer
-void MainWindow::refreshDisplay()
+void MainWindow::refreshDisplay(bool recreateDiveList)
 {
 	ui.InfoWidget->reload();
 	ui.ProfileWidget->refresh();
 	ui.globe->reload();
-	ui.ListWidget->reload(DiveTripModel::CURRENT);
+	if (recreateDiveList)
+		ui.ListWidget->reload(DiveTripModel::CURRENT);
 	ui.ListWidget->setFocus();
 	WSInfoModel *wsim = WSInfoModel::instance();
 	wsim->updateInfo();
@@ -282,8 +283,7 @@ void MainWindow::on_actionAddDive_triggered()
 		QMessageBox::warning(this, tr("Warning"), "First finish the current edition before trying to do another." );
 		return;
 	}
-
-	// clear the selection
+	dive_list()->rememberSelection();
 	dive_list()->unselectDives();
 	disableDcShortcuts();
 	DivePlannerPointsModel::instance()->setPlanMode(DivePlannerPointsModel::ADD);

qt-ui/mainwindow.h

@@ -108,7 +108,7 @@ protected:
 
 public slots:
 	void readSettings();
-	void refreshDisplay();
+	void refreshDisplay(bool recreateDiveList = true);
 	void showProfile();
 	void editCurrentDive();