1 files changed, 81 insertions, 0 deletions
diff --git a/src/live_effects/parameter/item.h b/src/live_effects/parameter/item.h
new file mode 100644
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+++ b/src/live_effects/parameter/item.h
@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifndef INKSCAPE_LIVEPATHEFFECT_PARAMETER_ITEM_H
+#define INKSCAPE_LIVEPATHEFFECT_PARAMETER_ITEM_H
+
+/*
+ * Inkscape::LivePathEffectParameters
+ *
+ * Copyright (C) Johan Engelen 2007 <j.b.c.engelen@utwente.nl>
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include <glib.h>
+
+
+#include "live_effects/parameter/parameter.h"
+#include "live_effects/parameter/item-reference.h"
+#include <cstddef>
+#include <sigc++/sigc++.h>
+
+namespace Inkscape {
+
+namespace LivePathEffect {
+
+class ItemParam : public Parameter {
+public:
+    ItemParam ( const Glib::ustring& label,
+                const Glib::ustring& tip,
+                const Glib::ustring& key,
+                Inkscape::UI::Widget::Registry* wr,
+                Effect* effect,
+                const gchar * default_value = "");
+    ~ItemParam() override;
+    Gtk::Widget * param_newWidget() override;
+
+    bool param_readSVGValue(const gchar * strvalue) override;
+    Glib::ustring param_getSVGValue() const override;
+    Glib::ustring param_getDefaultSVGValue() const override;
+    void param_set_default() override;
+    void param_update_default(const gchar * default_value) override;
+    void param_set_and_write_default();
+    void addCanvasIndicators(SPLPEItem const* lpeitem, std::vector<Geom::PathVector> &hp_vec) override;
+    sigc::signal <void> signal_item_pasted;
+    sigc::signal <void> signal_item_changed;
+    void linkitem(Glib::ustring itemid);
+    Geom::Affine last_transform;
+    bool changed; /* this gets set whenever the path is changed (this is set to true, and then the signal_item_changed signal is emitted).
+                   * the user must set it back to false if she wants to use it sensibly */
+protected:
+
+    gchar * href;     // contains link to other object, e.g. "#path2428", NULL if ItemParam contains pathdata itself
+    ItemReference ref;
+    sigc::connection ref_changed_connection;
+    sigc::connection linked_delete_connection;
+    sigc::connection linked_modified_connection;
+    sigc::connection linked_transformed_connection;
+    void ref_changed(SPObject *old_ref, SPObject *new_ref);
+    void remove_link();
+    void start_listening(SPObject * to);
+    void quit_listening();
+    void linked_delete(SPObject *deleted);
+    void linked_modified(SPObject *linked_obj, guint flags);
+    void linked_transformed(Geom::Affine const *rel_transf, SPItem *moved_item);
+    virtual void linked_modified_callback(SPObject *linked_obj, guint flags);
+    virtual void linked_transformed_callback(Geom::Affine const *rel_transf, SPItem */*moved_item*/);
+    void on_link_button_click();
+    void emit_changed();
+
+    gchar * defvalue;
+
+private:
+    ItemParam(const ItemParam&) = delete;
+    ItemParam& operator=(const ItemParam&) = delete;
+};
+
+
+} //namespace LivePathEffect
+
+} //namespace Inkscape
+
+#endif