Undo: Implement undo of dive site name editing

Implement an undo command that edits the name of a dive site.
Connect it to the dive site table, so that names can be edited
directly in the table.

Send signals on undo / redo so that the dive site table and
the dive site edit widget can be updated.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

1 files changed, 27 insertions, 0 deletions

diff --git a/desktop-widgets/command_divesite.cpp b/desktop-widgets/command_divesite.cpp
index d4c5d87b8..eafa18a76 100644
--- a/desktop-widgets/command_divesite.cpp
+++ b/desktop-widgets/command_divesite.cpp
@@ -3,6 +3,8 @@
 #include "command_divesite.h"
 #include "core/divesite.h"
 #include "core/subsurface-qt/DiveListNotifier.h"
+#include "core/qthelper.h"
+#include "qt-models/divelocationmodel.h"
 
 namespace Command {
 
@@ -80,4 +82,29 @@ void DeleteDiveSites::undo()
 	sitesToRemove = std::move(addDiveSites(sitesToAdd));
 }
 
+EditDiveSiteName::EditDiveSiteName(dive_site *dsIn, const QString &name) : ds(dsIn),
+	value(name)
+{
+}
+
+bool EditDiveSiteName::workToBeDone()
+{
+	return value != QString(ds->name);
+}
+
+void EditDiveSiteName::redo()
+{
+	QString s = ds->name;
+	free(ds->name);
+	ds->name = copy_qstring(value);
+	value = s;
+	emit diveListNotifier.diveSiteChanged(ds, LocationInformationModel::NAME); // Inform frontend of changed dive site.
+}
+
+void EditDiveSiteName::undo()
+{
+	// Undo and redo do the same
+	redo();
+}
+
 } // namespace Command