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+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Inkscape::UI::Widget::UnitTracker
+ * Simple mediator to synchronize changes to unit menus
+ *
+ * Authors:
+ * Jon A. Cruz <jon@joncruz.org>
+ * Matthew Petroff <matthew@mpetroff.net>
+ *
+ * Copyright (C) 2007 Jon A. Cruz
+ * Copyright (C) 2013 Matthew Petroff
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#ifndef INKSCAPE_UI_WIDGET_UNIT_TRACKER_H
+#define INKSCAPE_UI_WIDGET_UNIT_TRACKER_H
+
+#include <map>
+#include <vector>
+
+#include <gtkmm/liststore.h>
+
+#include "util/units.h"
+
+using Inkscape::Util::Unit;
+using Inkscape::Util::UnitType;
+
+typedef struct _GObject GObject;
+typedef struct _GtkAdjustment GtkAdjustment;
+typedef struct _GtkListStore GtkListStore;
+
+namespace Inkscape {
+namespace UI {
+namespace Widget {
+class ComboToolItem;
+
+class UnitTracker {
+public:
+ UnitTracker(UnitType unit_type);
+ virtual ~UnitTracker();
+
+ bool isUpdating() const;
+
+ void setActiveUnit(Inkscape::Util::Unit const *unit);
+ void setActiveUnitByAbbr(gchar const *abbr);
+ void setActiveUnitByLabel(Glib::ustring label);
+ Inkscape::Util::Unit const * getActiveUnit() const;
+
+ void addUnit(Inkscape::Util::Unit const *u);
+ void addAdjustment(GtkAdjustment *adj);
+ void prependUnit(Inkscape::Util::Unit const *u);
+ void setFullVal(GtkAdjustment *adj, gdouble val);
+ Glib::ustring getCurrentLabel();
+ void changeLabel(Glib::ustring new_label, gint pos, bool onlylabel = false);
+
+ ComboToolItem *create_tool_item(Glib::ustring const &label,
+ Glib::ustring const &tooltip);
+
+protected:
+ UnitType _type;
+
+private:
+ // Callbacks
+ void _unitChangedCB(int active);
+ static void _adjustmentFinalizedCB(gpointer data, GObject *where_the_object_was);
+
+ void _setActive(gint index);
+ void _fixupAdjustments(Inkscape::Util::Unit const *oldUnit, Inkscape::Util::Unit const *newUnit);
+
+ // Cleanup
+ void _adjustmentFinalized(GObject *where_the_object_was);
+
+ gint _active;
+ bool _isUpdating;
+ Inkscape::Util::Unit const *_activeUnit;
+ bool _activeUnitInitialized;
+
+ Glib::RefPtr<Gtk::ListStore> _store;
+ std::vector<ComboToolItem *> _combo_list;
+ std::vector<GtkAdjustment*> _adjList;
+ std::map <GtkAdjustment *, gdouble> _priorValues;
+};
+
+} // namespace Widget
+} // namespace UI
+} // namespace Inkscape
+
+#endif // INKSCAPE_UI_WIDGET_UNIT_TRACKER_H