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-rw-r--r--src/ui/tool/curve-drag-point.h77
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diff --git a/src/ui/tool/curve-drag-point.h b/src/ui/tool/curve-drag-point.h
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+++ b/src/ui/tool/curve-drag-point.h
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+// SPDX-License-Identifier: GPL-2.0-or-later
+/* Authors:
+ * Krzysztof KosiƄski <tweenk.pl@gmail.com>
+ * Jon A. Cruz <jon@joncruz.org>
+ *
+ * Copyright (C) 2009 Authors
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#ifndef SEEN_UI_TOOL_CURVE_DRAG_POINT_H
+#define SEEN_UI_TOOL_CURVE_DRAG_POINT_H
+
+#include "ui/tool/control-point.h"
+#include "ui/tool/node.h"
+
+class SPDesktop;
+namespace Inkscape {
+namespace UI {
+
+class PathManipulator;
+struct PathSharedData;
+
+// This point should be invisible to the user - use the invisible_cset from control-point.h
+// TODO make some methods from path-manipulator.cpp public so that this point doesn't have
+// to be declared as a friend
+/**
+ * An invisible point used to drag curves. This point is used by PathManipulator to allow editing
+ * of path segments by dragging them. It is defined in a separate file so that the node tool
+ * can check if the mouseovered control point is a curve drag point and update the cursor
+ * accordingly, without the need to drag in the full PathManipulator header.
+ */
+class CurveDragPoint : public ControlPoint {
+public:
+
+ CurveDragPoint(PathManipulator &pm);
+ void setSize(double sz) { _setSize(sz); }
+ void setTimeValue(double t) { _t = t; }
+ double getTimeValue() { return _t; }
+ void setIterator(NodeList::iterator i) { first = i; }
+ NodeList::iterator getIterator() { return first; }
+ bool _eventHandler(Inkscape::UI::Tools::ToolBase *event_context, GdkEvent *event) override;
+
+protected:
+
+ Glib::ustring _getTip(unsigned state) const override;
+ void dragged(Geom::Point &, GdkEventMotion *) override;
+ bool grabbed(GdkEventMotion *) override;
+ void ungrabbed(GdkEventButton *) override;
+ bool clicked(GdkEventButton *) override;
+ bool doubleclicked(GdkEventButton *) override;
+
+private:
+ double _t;
+ PathManipulator &_pm;
+ NodeList::iterator first;
+
+ static bool _drags_stroke;
+ static bool _segment_was_degenerate;
+ static Geom::Point _stroke_drag_origin;
+ void _insertNode(bool take_selection);
+};
+
+} // namespace UI
+} // namespace Inkscape
+
+#endif
+
+/*
+ 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 :