1 files changed, 101 insertions, 0 deletions
diff --git a/src/ui/tools/pencil-tool.h b/src/ui/tools/pencil-tool.h
new file mode 100644
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+++ b/src/ui/tools/pencil-tool.h
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+// SPDX-License-Identifier: GPL-2.0-or-later
+/** \file
+ * PencilTool: a context for pencil tool events
+ *//*
+ * Authors: see git history
+ *
+ * Copyright (C) 2018 Authors
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+#ifndef SEEN_PENCIL_CONTEXT_H
+#define SEEN_PENCIL_CONTEXT_H
+
+
+#include "ui/tools/freehand-base.h"
+
+#include <2geom/piecewise.h>
+#include <2geom/d2.h>
+#include <2geom/sbasis.h>
+#include <2geom/pathvector.h>
+// #include <future>
+
+#include <memory>
+
+class SPShape;
+
+#define DDC_MIN_PRESSURE      0.0
+#define DDC_MAX_PRESSURE      1.0
+#define DDC_DEFAULT_PRESSURE  1.0
+#define SP_PENCIL_CONTEXT(obj) (dynamic_cast<Inkscape::UI::Tools::PencilTool*>((Inkscape::UI::Tools::ToolBase*)obj))
+#define SP_IS_PENCIL_CONTEXT(obj) (dynamic_cast<const Inkscape::UI::Tools::PencilTool*>((const Inkscape::UI::Tools::ToolBase*)obj) != NULL)
+
+namespace Inkscape {
+namespace UI {
+namespace Tools {
+
+enum PencilState {
+    SP_PENCIL_CONTEXT_IDLE,
+    SP_PENCIL_CONTEXT_ADDLINE,
+    SP_PENCIL_CONTEXT_FREEHAND,
+    SP_PENCIL_CONTEXT_SKETCH
+};
+
+/**
+ * PencilTool: a context for pencil tool events
+ */
+class PencilTool : public FreehandBase {
+public:
+    PencilTool(SPDesktop *desktop);
+    ~PencilTool() override;
+
+    Geom::Point p[16];
+    std::vector<Geom::Point> ps;
+    std::vector<Geom::Point> points;
+    void addPowerStrokePencil();
+    void powerStrokeInterpolate(Geom::Path const path);
+    Geom::Piecewise<Geom::D2<Geom::SBasis> > sketch_interpolation; // the current proposal from the sketched paths
+    unsigned sketch_n; // number of sketches done
+
+protected:
+    bool root_handler(GdkEvent* event) override;
+private:
+    bool _handleButtonPress(GdkEventButton const &bevent);
+    bool _handleMotionNotify(GdkEventMotion const &mevent);
+    bool _handleButtonRelease(GdkEventButton const &revent);
+    bool _handleKeyPress(GdkEventKey const &event);
+    bool _handleKeyRelease(GdkEventKey const &event);
+    void _setStartpoint(Geom::Point const &p);
+    void _setEndpoint(Geom::Point const &p);
+    void _finishEndpoint();
+    void _addFreehandPoint(Geom::Point const &p, guint state, bool last);
+    void _fitAndSplit();
+    void _interpolate();
+    void _sketchInterpolate();
+    void _extinput(GdkEvent *event);
+    void _cancel();
+    void _endpointSnap(Geom::Point &p, guint const state);
+    std::vector<Geom::Point> _wps;
+    std::unique_ptr<SPCurve> _pressure_curve;
+    Geom::Point _req_tangent;
+    bool _is_drawing;
+    PencilState _state;
+    gint _npoints;
+    // std::future<bool> future;
+};
+
+}
+}
+}
+
+#endif /* !SEEN_PENCIL_CONTEXT_H */
+
+/*
+  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 :