1 files changed, 53 insertions, 0 deletions
diff --git a/src/display/control/canvas-temporary-item.cpp b/src/display/control/canvas-temporary-item.cpp
new file mode 100644
index 0000000..d95ad21
--- /dev/null
+++ b/src/display/control/canvas-temporary-item.cpp
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Provides a class that can contain active TemporaryItem's on a desktop
+ * When the object is deleted, it also deletes the canvasitem it contains!
+ * This object should be created/managed by a TemporaryItemList.
+ * After its lifetime, it fires the timeout signal, afterwards *it deletes itself*.
+ *
+ * (part of code inspired by message-stack.cpp)
+ *
+ * Authors:
+ *   Johan Engelen
+ *
+ * Copyright (C) Johan Engelen 2008 <j.b.c.engelen@utwente.nl>
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include <glibmm/main.h>
+
+#include "canvas-temporary-item.h"
+#include "canvas-item.h"
+
+namespace Inkscape {
+namespace Display {
+
+TemporaryItem::TemporaryItem(CanvasItem *item, int lifetime_msecs)
+    : canvasitem(std::move(item))
+{
+    // Zero lifetime means stay forever, so do not add timeout event.
+    if (lifetime_msecs > 0) {
+        timeout_conn = Glib::signal_timeout().connect([this] {
+            signal_timeout.emit(this);
+            delete this;
+            return false;
+        }, lifetime_msecs);
+    }
+}
+
+TemporaryItem::~TemporaryItem() = default;
+
+} // namespace Display
+} // namespace Inkscape
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :