1 files changed, 69 insertions, 0 deletions
diff --git a/src/ui/dialog/desktop-tracker.h b/src/ui/dialog/desktop-tracker.h
new file mode 100644
index 0000000..7b94390
--- /dev/null
+++ b/src/ui/dialog/desktop-tracker.h
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* Authors:
+ *   Jon A. Cruz
+ *
+ * Copyright (C) 2010 Jon A. Cruz
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+#ifndef SEEN_DIALOG_DESKTOP_TRACKER
+#define SEEN_DIALOG_DESKTOP_TRACKER
+
+#include <cstddef>
+#include <sigc++/connection.h>
+
+typedef struct _GtkWidget GtkWidget;
+class SPDesktop;
+struct InkscapeApplication;
+
+namespace Inkscape {
+
+namespace UI {
+namespace Dialog {
+
+class DesktopTracker
+{
+public:
+    DesktopTracker();
+    virtual ~DesktopTracker();
+
+    void connect(GtkWidget *widget);
+    void disconnect();
+
+    SPDesktop *getDesktop() const;
+
+    void setBase(SPDesktop *desktop);
+    SPDesktop *getBase() const;
+
+    sigc::connection connectDesktopChanged( const sigc::slot<void, SPDesktop*> & slot );
+
+private:
+    static void activateDesktopCB(SPDesktop *desktop, DesktopTracker *self );
+    static bool hierarchyChangeCB(GtkWidget *widget, GtkWidget* prev, DesktopTracker *self);
+
+    void handleHierarchyChange();
+    void setDesktop(SPDesktop *desktop);
+
+    SPDesktop *base;
+    SPDesktop *desktop;
+    GtkWidget *widget;
+    unsigned long hierID;
+    sigc::connection inkID;
+    bool trackActive;
+    sigc::signal<void, SPDesktop*> desktopChangedSig;
+};
+
+} // namespace Dialog
+} // namespace UI
+} // namespace Inkscape
+
+#endif // SEEN_DIALOG_DESKTOP_TRACKER
+/*
+  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:fileencoding=utf-8:textwidth=99 :