1 #ifndef __SHAPE_EDITOR_H__
2 #define __SHAPE_EDITOR_H__
4 /*
5 * Inkscape::ShapeEditor
6 *
7 * This is a container class which contains either knotholder (for shapes) or nodepath (for
8 * paths). It is attached to a single item so only one of these is active at a time.
9 *
10 * Authors:
11 * bulia byak <buliabyak@users.sf.net>
12 *
13 */
15 #include <forward.h>
16 #include <libnr/nr-forward.h>
18 namespace Inkscape { namespace NodePath { class Path; } }
19 namespace Inkscape { namespace XML { class Node; } }
21 #include "libnr/nr-path-code.h"
22 #include "libnr/nr-point.h"
23 #include <boost/optional.hpp>
24 #include <vector>
26 class KnotHolder;
27 class SPDesktop;
28 class SPNodeContext;
29 class ShapeEditorsCollective;
31 enum SubType{
32 SH_NODEPATH,
33 SH_KNOTHOLDER
34 };
36 class ShapeEditor {
37 public:
39 ShapeEditor(SPDesktop *desktop);
40 ~ShapeEditor();
42 void set_item (SPItem *item, SubType type, bool keep_knotholder = false);
43 void set_item_lpe_path_parameter(SPItem *item, SPObject *lpeobject, const char * key);
44 void unset_item (SubType type, bool keep_knotholder = false);
46 bool has_nodepath (); //((deprecated))
47 void update_knotholder (); //((deprecated))
49 bool has_local_change (SubType type);
50 void decrement_local_change (SubType type);
52 GList *save_nodepath_selection ();
53 void restore_nodepath_selection (GList *saved);
55 void nodepath_destroyed ();
57 void update_statusbar ();
59 bool is_over_stroke (Geom::Point event_p, bool remember);
61 void add_node_near_point(); // uses the shapeeditor's remembered point, if any
63 void select_segment_near_point(bool toggle); // uses the shapeeditor's remembered point, if any
65 void cancel_hit ();
67 bool hits_curve ();
69 void curve_drag (gdouble eventx, gdouble eventy);
71 void finish_drag ();
73 void select_rect (Geom::Rect const &rect, bool add);
75 bool has_selection ();
76 void deselect ();
78 Inkscape::NodePath::Path *get_nodepath() {return nodepath;} //((deprecated))
79 ShapeEditorsCollective *get_container() {return container;}
81 void add_node();
83 void delete_nodes();
84 void delete_nodes_preserving_shape();
85 void delete_segment();
87 void set_node_type(int type);
89 void break_at_nodes();
90 void join_nodes();
91 void join_segments();
93 void duplicate_nodes();
95 void set_type_of_segments(NRPathcode code);
97 void move_nodes(gdouble dx, gdouble dy);
98 void move_nodes_screen(SPDesktop *desktop, gdouble dx, gdouble dy);
100 void rotate_nodes(gdouble angle, int which, bool screen);
102 void scale_nodes(gdouble const grow, int const which);
103 void scale_nodes_screen(gdouble const grow, int const which);
105 void select_all (bool invert);
106 void select_all_from_subpath (bool invert);
107 void select_next ();
108 void select_prev ();
110 void show_handles (bool show);
111 void show_helperpath (bool show);
113 void flip (Geom::Dim2 axis, boost::optional<Geom::Point> center = boost::optional<Geom::Point>());
115 void distribute (Geom::Dim2 axis);
116 void align (Geom::Dim2 axis);
118 bool nodepath_edits_repr_key(gchar const *name);
120 // this one is only public because it's called from non-C++ repr changed callback
121 void shapeeditor_event_attr_changed(gchar const *name);
123 private:
124 bool has_knotholder ();
125 void reset_item (SubType type, bool keep_knotholder = true);
126 const SPItem *get_item (SubType type);
128 SPDesktop *desktop;
130 Inkscape::NodePath::Path *nodepath;
132 // TODO: std::list<KnotHolder *> knotholders;
133 KnotHolder *knotholder;
135 ShapeEditorsCollective *container;
137 //Inkscape::XML::Node *lidtened_repr;
139 double grab_t;
140 int grab_node; // number of node grabbed by sp_node_context_is_over_stroke
141 bool hit;
142 Geom::Point curvepoint_event; // int coords from event
143 Geom::Point curvepoint_doc; // same, in doc coords
145 Inkscape::XML::Node *listener_attached_for;
146 };
149 /* As the next stage, this will be a collection of multiple ShapeEditors,
150 with the same interface as the single ShapeEditor, passing the actions to all its
151 contained ShapeEditors. Thus it should be easy to switch node context from
152 using a single ShapeEditor to using a ShapeEditorsCollective. */
154 class ShapeEditorsCollective {
155 public:
157 ShapeEditorsCollective(SPDesktop *desktop);
158 ~ShapeEditorsCollective();
160 void update_statusbar();
162 private:
163 std::vector<ShapeEditor> editors;
165 SPNodeContext *nc; // who holds us
166 };
168 #endif
171 /*
172 Local Variables:
173 mode:c++
174 c-file-style:"stroustrup"
175 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
176 indent-tabs-mode:nil
177 fill-column:99
178 End:
179 */
180 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :