ad2d5126f3d6addb4b5ae882942822f70b338cb1
1 #ifndef INKSCAPE_LIVEPATHEFFECT_H
2 #define INKSCAPE_LIVEPATHEFFECT_H
4 /*
5 * Inkscape::LivePathEffect
6 *
7 * Copyright (C) Johan Engelen 2007-2008 <j.b.c.engelen@utwente.nl>
8 *
9 * Released under GNU GPL, read the file 'COPYING' for more information
10 */
13 #include "display/display-forward.h"
14 #include <map>
15 #include <glibmm/ustring.h>
16 #include <2geom/path.h>
17 #include "ui/widget/registry.h"
18 #include "util/enums.h"
19 #include "sp-lpe-item.h"
20 #include "knotholder.h"
22 #define LPE_CONVERSION_TOLERANCE 0.01 // FIXME: find good solution for this.
24 #define LPE_ENABLE_TEST_EFFECTS
26 struct SPDocument;
27 struct SPDesktop;
28 struct SPItem;
29 class NArtBpath;
30 struct LivePathEffectObject;
32 namespace Gtk {
33 class Widget;
34 class VBox;
35 class Tooltips;
36 }
38 namespace Geom {
39 class Matrix;
40 }
42 namespace Inkscape {
44 namespace XML {
45 class Node;
46 }
48 namespace NodePath {
49 class Path ;
50 }
52 namespace LivePathEffect {
54 enum EffectType {
55 BEND_PATH = 0,
56 PATTERN_ALONG_PATH,
57 SKETCH,
58 VONKOCH,
59 KNOT,
60 #ifdef LPE_ENABLE_TEST_EFFECTS
61 DOEFFECTSTACK_TEST,
62 #endif
63 GEARS,
64 CURVE_STITCH,
65 CIRCLE_WITH_RADIUS,
66 PERSPECTIVE_PATH,
67 SPIRO,
68 CONSTRUCT_GRID,
69 ENVELOPE,
70 PERP_BISECTOR,
71 TANGENT_TO_CURVE,
72 INVALID_LPE // This must be last
73 };
75 extern const Util::EnumData<EffectType> LPETypeData[INVALID_LPE];
76 extern const Util::EnumDataConverter<EffectType> LPETypeConverter;
78 class Parameter;
80 class Effect {
81 public:
82 static Effect* New(EffectType lpenr, LivePathEffectObject *lpeobj);
84 virtual ~Effect();
86 EffectType effectType ();
88 virtual void doOnApply (SPLPEItem *lpeitem);
90 virtual void doBeforeEffect (SPLPEItem *lpeitem);
92 virtual void doEffect (SPCurve * curve);
94 virtual Gtk::Widget * newWidget(Gtk::Tooltips * tooltips);
96 virtual void resetDefaults(SPItem * item);
98 virtual void setup_nodepath(Inkscape::NodePath::Path *np);
100 virtual void transform_multiply(Geom::Matrix const& postmul, bool set);
102 bool providesKnotholder() { return knotholder_func_vector.size() > 0; }
103 void addHandles(SPKnotHolder *knotholder);
105 Glib::ustring getName();
106 Inkscape::XML::Node * getRepr();
107 SPDocument * getSPDoc();
108 LivePathEffectObject * getLPEObj() {return lpeobj;};
109 Parameter * getParameter(const char * key);
111 void readallParameters(Inkscape::XML::Node * repr);
112 void setParameter(const gchar * key, const gchar * new_value);
114 void editNextParamOncanvas(SPItem * item, SPDesktop * desktop);
116 protected:
117 Effect(LivePathEffectObject *lpeobject);
119 // provide a set of doEffect functions so the developer has a choice
120 // of what kind of input/output parameters he desires.
121 // the order in which they appear is the order in which they are
122 // called by this base class. (i.e. doEffect(SPCurve * curve) defaults to calling
123 // doEffect(std::vector<Geom::Path> )
124 virtual NArtBpath *
125 doEffect_nartbpath (NArtBpath const * path_in) __attribute__ ((deprecated));
126 virtual std::vector<Geom::Path>
127 doEffect_path (std::vector<Geom::Path> const & path_in);
128 virtual Geom::Piecewise<Geom::D2<Geom::SBasis> >
129 doEffect_pwd2 (Geom::Piecewise<Geom::D2<Geom::SBasis> > const & pwd2_in);
131 void registerParameter(Parameter * param);
132 void registerKnotHolderHandle(SPKnotHolderSetFunc set_func, SPKnotHolderGetFunc get_func);
133 Parameter * getNextOncanvasEditableParam();
135 std::vector<Parameter *> param_vector;
136 std::vector<std::pair<SPKnotHolderSetFunc, SPKnotHolderGetFunc> > knotholder_func_vector;
137 int oncanvasedit_it;
138 Inkscape::UI::Widget::Registry wr;
140 LivePathEffectObject *lpeobj;
142 // this boolean defaults to false, it concatenates the input path to one pwd2,
143 // instead of normally 'splitting' the path into continuous pwd2 paths.
144 bool concatenate_before_pwd2;
146 private:
147 Effect(const Effect&);
148 Effect& operator=(const Effect&);
149 };
152 } //namespace LivePathEffect
153 } //namespace Inkscape
155 #endif