1 files changed, 88 insertions, 0 deletions
diff --git a/src/display/control/canvas-temporary-item-list.cpp b/src/display/control/canvas-temporary-item-list.cpp
new file mode 100644
index 0000000..4be97f9
--- /dev/null
+++ b/src/display/control/canvas-temporary-item-list.cpp
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Provides a class that can contain active TemporaryItem's on a desktop
+ * 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 "canvas-temporary-item.h"
+#include "canvas-temporary-item-list.h"
+
+namespace Inkscape {
+namespace Display {
+
+TemporaryItemList::TemporaryItemList(SPDesktop *desktop)
+    : desktop(desktop)
+{
+
+}
+
+TemporaryItemList::~TemporaryItemList()
+{
+    // delete all items in list so the timeouts are removed
+    for (auto tempitem : itemlist) {
+        delete tempitem;
+    }
+    itemlist.clear();
+}
+
+/* Note that TemporaryItem or TemporaryItemList is responsible for deletion and such, so this return pointer can safely be ignored. */
+TemporaryItem *
+TemporaryItemList::add_item(CanvasItem *item, unsigned int lifetime)
+{
+    // beware of strange things happening due to very short timeouts
+    TemporaryItem * tempitem;
+    if (lifetime == 0)
+        tempitem = new TemporaryItem(item, 0, true);
+    else {
+        tempitem = new TemporaryItem(item, lifetime);
+        tempitem->signal_timeout.connect( sigc::mem_fun(*this, &TemporaryItemList::_item_timeout) );
+    }
+
+    itemlist.push_back(tempitem);
+    return tempitem;
+}
+
+void
+TemporaryItemList::delete_item( TemporaryItem * tempitem )
+{
+    // check if the item is in the list, if so, delete it. (in other words, don't wait for the item to delete itself)
+    bool in_list = false;
+    for (auto & it : itemlist) {
+        if ( it == tempitem ) {
+            in_list = true;
+            break;
+        }
+    }
+    if (in_list) {
+        itemlist.remove(tempitem);
+        delete tempitem;
+    }
+}
+
+void
+TemporaryItemList::_item_timeout(TemporaryItem * tempitem)
+{
+    itemlist.remove(tempitem);
+    // no need to delete the item, it does that itself after signal_timeout.emit() completes
+}
+
+} //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 :