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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* Multi path manipulator - a tool component that edits multiple paths at once
*/
/* Authors:
* Krzysztof Kosiński <tweenk.pl@gmail.com>
*
* Copyright (C) 2009 Authors
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#ifndef SEEN_UI_TOOL_MULTI_PATH_MANIPULATOR_H
#define SEEN_UI_TOOL_MULTI_PATH_MANIPULATOR_H
#include <cstddef>
#include <sigc++/connection.h>
#include <2geom/path-sink.h>
#include "node.h"
#include "commit-events.h"
#include "manipulator.h"
#include "modifier-tracker.h"
#include "node-types.h"
#include "shape-record.h"
struct SPCanvasGroup;
namespace Inkscape {
namespace UI {
class PathManipulator;
class MultiPathManipulator;
struct PathSharedData;
/**
* Manipulator that manages multiple path manipulators active at the same time.
*/
class MultiPathManipulator : public PointManipulator {
public:
MultiPathManipulator(PathSharedData &data, sigc::connection &chg);
~MultiPathManipulator() override;
bool event(Inkscape::UI::Tools::ToolBase *, GdkEvent *event) override;
bool empty() { return _mmap.empty(); }
unsigned size() { return _mmap.size(); }
void setItems(std::set<ShapeRecord> const &);
void clear() { _mmap.clear(); }
void cleanup();
void selectSubpaths();
void shiftSelection(int dir);
void invertSelectionInSubpaths();
void setNodeType(NodeType t);
void setSegmentType(SegmentType t);
void insertNodesAtExtrema(ExtremumType extremum);
void insertNodes();
void insertNode(Geom::Point pt);
void alertLPE();
void duplicateNodes();
void copySelectedPath(Geom::PathBuilder *builder);
void joinNodes();
void breakNodes();
void deleteNodes(bool keep_shape = true);
void joinSegments();
void deleteSegments();
void alignNodes(Geom::Dim2 d, AlignTargetNode target = AlignTargetNode::MID_NODE);
void distributeNodes(Geom::Dim2 d);
void reverseSubpaths();
void move(Geom::Point const &delta);
void showOutline(bool show);
void showHandles(bool show);
void showPathDirection(bool show);
void setLiveOutline(bool set);
void setLiveObjects(bool set);
void updateOutlineColors();
void updateHandles();
void updatePaths();
sigc::signal<void> signal_coords_changed; /// Emitted whenever the coordinates
/// shown in the status bar need updating
private:
typedef std::pair<ShapeRecord, std::shared_ptr<PathManipulator> > MapPair;
typedef std::map<ShapeRecord, std::shared_ptr<PathManipulator> > MapType;
template <typename R>
void invokeForAll(R (PathManipulator::*method)()) {
for (MapType::iterator i = _mmap.begin(); i != _mmap.end(); ) {
// Sometimes the PathManipulator got freed at loop end, thus
// invalidating the iterator so make sure that next_i will
// be a valid iterator and then assign i to it.
MapType::iterator next_i = i;
++next_i;
// i->second is a std::shared_ptr so try to hold on to it so
// it won't get freed prematurely by the WriteXML() method or
// whatever. See https://bugs.launchpad.net/inkscape/+bug/1617615
// Applicable to empty paths.
std::shared_ptr<PathManipulator> hold(i->second);
((hold.get())->*method)();
i = next_i;
}
}
template <typename R, typename A>
void invokeForAll(R (PathManipulator::*method)(A), A a) {
for (auto & i : _mmap) {
((i.second.get())->*method)(a);
}
}
template <typename R, typename A>
void invokeForAll(R (PathManipulator::*method)(A const &), A const &a) {
for (auto & i : _mmap) {
((i.second.get())->*method)(a);
}
}
template <typename R, typename A, typename B>
void invokeForAll(R (PathManipulator::*method)(A,B), A a, B b) {
for (auto & i : _mmap) {
((i.second.get())->*method)(a, b);
}
}
void _commit(CommitEvent cps);
void _done(gchar const *reason, bool alert_LPE = true);
void _doneWithCleanup(gchar const *reason, bool alert_LPE = false);
guint32 _getOutlineColor(ShapeRole role, SPObject *object);
MapType _mmap;
public:
PathSharedData const &_path_data;
private:
sigc::connection &_changed;
ModifierTracker _tracker;
bool _show_handles;
bool _show_outline;
bool _show_path_direction;
bool _live_outline;
bool _live_objects;
friend class PathManipulator;
};
} // 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 :
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