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Diffstat (limited to 'src/ui/tools/eraser-tool.h')
| -rw-r--r-- | src/ui/tools/eraser-tool.h | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/src/ui/tools/eraser-tool.h b/src/ui/tools/eraser-tool.h new file mode 100644 index 0000000..2c9377a --- /dev/null +++ b/src/ui/tools/eraser-tool.h @@ -0,0 +1,132 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +#ifndef ERASER_TOOL_H_SEEN +#define ERASER_TOOL_H_SEEN + +/* + * Handwriting-like drawing mode + * + * Authors: + * Mitsuru Oka <oka326@parkcity.ne.jp> + * Lauris Kaplinski <lauris@kaplinski.com> + * + * The original dynadraw code: + * Paul Haeberli <paul@sgi.com> + * + * Copyright (C) 1998 The Free Software Foundation + * Copyright (C) 1999-2002 authors + * Copyright (C) 2001-2002 Ximian, Inc. + * Copyright (C) 2008 Jon A. Cruz + * + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ + +#include <2geom/point.h> + +#include "message-stack.h" +#include "style.h" +#include "ui/tools/dynamic-base.h" + +namespace Inkscape { +namespace UI { +namespace Tools { + +enum class EraserToolMode +{ + DELETE, + CUT, + CLIP +}; +extern EraserToolMode const DEFAULT_ERASER_MODE; + +class EraserTool : public DynamicBase { + +private: + // non-static data: + EraserToolMode mode = DEFAULT_ERASER_MODE; + bool nowidth = false; + std::vector<MessageId> _our_messages; + + // static data: + inline static guint32 const trace_color_rgba = 0xff0000ff; // RGBA red + inline static SPWindRule const trace_wind_rule = SP_WIND_RULE_EVENODD; + + inline static double const tolerance = 0.1; + + inline static double const epsilon = 0.5e-6; + inline static double const epsilon_start = 0.5e-2; + inline static double const vel_start = 1e-5; + + inline static double const drag_default = 1.0; + inline static double const drag_min = 0.0; + inline static double const drag_max = 1.0; + + inline static double const min_pressure = 0.0; + inline static double const max_pressure = 1.0; + inline static double const default_pressure = 1.0; + + inline static double const min_tilt = -1.0; + inline static double const max_tilt = 1.0; + inline static double const default_tilt = 0.0; + +public: + // public member functions + EraserTool(SPDesktop *desktop); + ~EraserTool() override; + bool root_handler(GdkEvent *event) final; + + using Error = std::uint64_t; + inline static Error const ALL_GOOD = 0x0; + inline static Error const NOT_IN_BOUNDS = 0x1 << 0; + inline static Error const NON_EXISTENT = 0x1 << 1; + inline static Error const NO_AREA_PATH = 0x1 << 2; + inline static Error const RASTER_IMAGE = 0x1 << 3; + inline static Error const ERROR_GROUP = 0x1 << 4; + +private: + // private member functions + void _reset(Geom::Point p); + void _extinput(GdkEvent *event); + bool _apply(Geom::Point p); + void _brush(); + void _cancel(); + void _clearCurrent(); + void _setToAccumulated(); + void _accumulate(); + void _fitAndSplit(bool releasing); + void _drawTemporaryBox(); + bool _handleKeypress(GdkEventKey const *key); + void _completeBezier(double tolerance_sq, bool releasing); + void _failedBezierFallback(); + void _fitDrawLastPoint(); + void _clipErase(SPItem *item, SPObject *parent, Geom::OptRect &eraser_box); + Error _cutErase(SPItem *item, Geom::OptRect const &eraser_bbox, std::vector<SPItem *> &survivers); + void _booleanErase(SPItem *erasee, std::vector<SPItem*> &survivers) const; + void _handleStrokeStyle(SPItem *item) const; + void _updateMode(); + void _removeTemporarySegments(); + void _setStatusBarMessage(char *message); + void _clearStatusBar(); + + static void _generateNormalDist2(double &r1, double &r2); + static void _addCap(SPCurve &curve, Geom::Point const &pre, Geom::Point const &from, Geom::Point const &to, + Geom::Point const &post, double rounding); + static bool _isStraightSegment(SPItem *path); + static Error _uncuttableItemType(SPItem *item); +}; + +} // namespace Tools +} // namespace UI +} // namespace Inkscape + +#endif // ERASER_TOOL_H_SEEN + +/* + 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 : |