1 /** @file
2 * Node selection - stores a set of nodes and applies transformations
3 * to them
4 */
5 /* Authors:
6 * Krzysztof KosiĆski <tweenk.pl@gmail.com>
7 *
8 * Copyright (C) 2009 Authors
9 * Released under GNU GPL, read the file 'COPYING' for more information
10 */
12 #ifndef SEEN_UI_TOOL_NODE_SELECTION_H
13 #define SEEN_UI_TOOL_NODE_SELECTION_H
15 #include <memory>
16 #include <tr1/unordered_map>
17 #include <boost/shared_ptr.hpp>
18 #include <boost/weak_ptr.hpp>
19 #include <boost/optional.hpp>
20 #include <sigc++/sigc++.h>
21 #include <2geom/forward.h>
22 #include <2geom/point.h>
23 #include "display/display-forward.h"
24 #include "util/accumulators.h"
25 #include "util/hash.h"
26 #include "ui/tool/commit-events.h"
27 #include "ui/tool/manipulator.h"
29 namespace std { using namespace tr1; }
31 class SPDesktop;
33 namespace Inkscape {
34 namespace UI {
36 class TransformHandleSet;
37 class SelectableControlPoint;
39 class ControlPointSelection : public Manipulator {
40 public:
41 ControlPointSelection(SPDesktop *d, SPCanvasGroup *th_group);
42 ~ControlPointSelection();
43 typedef std::list<sigc::connection> connlist_type;
44 typedef std::unordered_map< SelectableControlPoint *,
45 boost::shared_ptr<connlist_type> > map_type;
47 // boilerplate typedefs
48 typedef map_type::iterator iterator;
49 typedef map_type::const_iterator const_iterator;
50 typedef map_type::size_type size_type;
52 typedef SelectableControlPoint *value_type;
53 typedef SelectableControlPoint *key_type;
55 // size
56 bool empty() { return _points.empty(); }
57 size_type size() { return _points.size(); }
59 // iterators
60 iterator begin() { return _points.begin(); }
61 const_iterator begin() const { return _points.begin(); }
62 iterator end() { return _points.end(); }
63 const_iterator end() const { return _points.end(); }
65 // insert
66 std::pair<iterator, bool> insert(const value_type& x);
67 template <class InputIterator>
68 void insert(InputIterator first, InputIterator last) {
69 for (; first != last; ++first) {
70 insert(*first);
71 }
72 }
74 // erase
75 void clear();
76 void erase(iterator pos);
77 size_type erase(const key_type& k);
78 void erase(iterator first, iterator last);
80 // find
81 iterator find(const key_type &k) { return _points.find(k); }
83 virtual bool event(GdkEvent *);
85 void transform(Geom::Matrix const &m);
86 void align(Geom::Dim2 d);
87 void distribute(Geom::Dim2 d);
89 Geom::OptRect pointwiseBounds();
90 Geom::OptRect bounds();
92 void showTransformHandles(bool v, bool one_node);
93 // the two methods below do not modify the state; they are for use in manipulators
94 // that need to temporarily hide the handles
95 void hideTransformHandles();
96 void restoreTransformHandles();
98 // TODO this is really only applicable to nodes... maybe derive a NodeSelection?
99 void setSculpting(bool v) { _sculpt_enabled = v; }
101 sigc::signal<void> signal_update;
102 sigc::signal<void, SelectableControlPoint *, bool> signal_point_changed;
103 sigc::signal<void, CommitEvent> signal_commit;
104 private:
105 void _selectionGrabbed(SelectableControlPoint *, GdkEventMotion *);
106 void _selectionDragged(Geom::Point const &, Geom::Point &, GdkEventMotion *);
107 void _selectionUngrabbed();
108 void _updateTransformHandles(bool preserve_center);
109 bool _keyboardMove(GdkEventKey const &, Geom::Point const &);
110 bool _keyboardRotate(GdkEventKey const &, int);
111 bool _keyboardScale(GdkEventKey const &, int);
112 bool _keyboardFlip(Geom::Dim2);
113 void _keyboardTransform(Geom::Matrix const &);
114 void _commitTransform(CommitEvent ce);
115 map_type _points;
116 boost::optional<double> _rot_radius;
117 TransformHandleSet *_handles;
118 SelectableControlPoint *_grabbed_point;
119 unsigned _dragging : 1;
120 unsigned _handles_visible : 1;
121 unsigned _one_node_handles : 1;
122 unsigned _sculpt_enabled : 1;
123 unsigned _sculpting : 1;
124 };
126 } // namespace UI
127 } // namespace Inkscape
129 #endif
131 /*
132 Local Variables:
133 mode:c++
134 c-file-style:"stroustrup"
135 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
136 indent-tabs-mode:nil
137 fill-column:99
138 End:
139 */
140 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :