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 <2geom/forward.h>
18 namespace Inkscape { namespace NodePath { class Path; } }
19 namespace Inkscape { namespace XML { class Node; } }
21 class KnotHolder;
22 class SPDesktop;
23 class SPNodeContext;
24 class ShapeEditorsCollective;
25 class LivePathEffectObject;
27 #include "libnr/nr-path-code.h"
28 #include <2geom/point.h>
29 #include <boost/optional.hpp>
30 #include <vector>
32 enum SubType{
33 SH_NODEPATH,
34 SH_KNOTHOLDER
35 };
37 class ShapeEditor {
38 public:
40 ShapeEditor(SPDesktop *desktop);
41 ~ShapeEditor();
43 void set_item (SPItem *item, SubType type, bool keep_knotholder = false);
44 void set_item_lpe_path_parameter(SPItem *item, LivePathEffectObject *lpeobject, const char * key);
45 void unset_item (SubType type, bool keep_knotholder = false);
47 bool has_nodepath (); //((deprecated))
48 void update_knotholder (); //((deprecated))
50 bool has_local_change (SubType type);
51 void decrement_local_change (SubType type);
53 GList *save_nodepath_selection ();
54 void restore_nodepath_selection (GList *saved);
56 void nodepath_destroyed ();
58 void update_statusbar ();
60 bool is_over_stroke (Geom::Point event_p, bool remember);
62 void add_node_near_point(); // uses the shapeeditor's remembered point, if any
64 void select_segment_near_point(bool toggle); // uses the shapeeditor's remembered point, if any
66 void cancel_hit ();
68 bool hits_curve ();
70 void curve_drag (gdouble eventx, gdouble eventy);
72 void finish_drag ();
74 void select_rect (Geom::Rect const &rect, bool add);
76 bool has_selection ();
77 void deselect ();
79 Inkscape::NodePath::Path *get_nodepath() {return nodepath;} //((deprecated))
80 ShapeEditorsCollective *get_container() {return container;}
82 void add_node();
84 void delete_nodes();
85 void delete_nodes_preserving_shape();
86 void delete_segment();
88 void set_node_type(int type);
90 void break_at_nodes();
91 void join_nodes();
92 void join_segments();
94 void duplicate_nodes();
96 void set_type_of_segments(NRPathcode code);
98 void move_nodes(gdouble dx, gdouble dy);
99 void move_nodes_screen(SPDesktop *desktop, gdouble dx, gdouble dy);
101 void rotate_nodes(gdouble angle, int which, bool screen);
103 void scale_nodes(gdouble const grow, int const which);
104 void scale_nodes_screen(gdouble const grow, int const which);
106 void select_all (bool invert);
107 void select_all_from_subpath (bool invert);
108 void select_next ();
109 void select_prev ();
111 void show_handles (bool show);
112 void show_helperpath (bool show);
114 void flip (Geom::Dim2 axis, boost::optional<Geom::Point> center = boost::optional<Geom::Point>());
116 void distribute (Geom::Dim2 axis);
117 void align (Geom::Dim2 axis);
119 bool nodepath_edits_repr_key(gchar const *name);
121 // this one is only public because it's called from non-C++ repr changed callback
122 void shapeeditor_event_attr_changed(gchar const *name);
124 private:
125 bool has_knotholder ();
126 void reset_item (SubType type, bool keep_knotholder = true);
127 const SPItem *get_item (SubType type);
129 SPDesktop *desktop;
131 Inkscape::NodePath::Path *nodepath;
133 // TODO: std::list<KnotHolder *> knotholders;
134 KnotHolder *knotholder;
136 ShapeEditorsCollective *container;
138 //Inkscape::XML::Node *lidtened_repr;
140 double grab_t;
141 int grab_node; // number of node grabbed by sp_node_context_is_over_stroke
142 bool hit;
143 Geom::Point curvepoint_event; // int coords from event
144 Geom::Point curvepoint_doc; // same, in doc coords
146 Inkscape::XML::Node *knotholder_listener_attached_for;
147 Inkscape::XML::Node *nodepath_listener_attached_for;
148 };
151 /* As the next stage, this will be a collection of multiple ShapeEditors,
152 with the same interface as the single ShapeEditor, passing the actions to all its
153 contained ShapeEditors. Thus it should be easy to switch node context from
154 using a single ShapeEditor to using a ShapeEditorsCollective. */
156 class ShapeEditorsCollective {
157 public:
159 ShapeEditorsCollective(SPDesktop *desktop);
160 ~ShapeEditorsCollective();
162 void update_statusbar();
164 private:
165 std::vector<ShapeEditor> editors;
167 SPNodeContext *nc; // who holds us
168 };
170 #endif
173 /*
174 Local Variables:
175 mode:c++
176 c-file-style:"stroustrup"
177 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
178 indent-tabs-mode:nil
179 fill-column:99
180 End:
181 */
182 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :