1 #ifndef __SP_CLIPPATH_H__
2 #define __SP_CLIPPATH_H__
4 /*
5 * SVG <clipPath> implementation
6 *
7 * Authors:
8 * Lauris Kaplinski <lauris@kaplinski.com>
9 *
10 * Copyright (C) 2001-2002 authors
11 * Copyright (C) 2001 Ximian, Inc.
12 *
13 * Released under GNU GPL, read the file 'COPYING' for more information
14 */
16 #define SP_TYPE_CLIPPATH (sp_clippath_get_type ())
17 #define SP_CLIPPATH(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), SP_TYPE_CLIPPATH, SPClipPath))
18 #define SP_CLIPPATH_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), SP_TYPE_CLIPPATH, SPClipPathClass))
19 #define SP_IS_CLIPPATH(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), SP_TYPE_CLIPPATH))
20 #define SP_IS_CLIPPATH_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), SP_TYPE_CLIPPATH))
22 class SPClipPathView;
24 #include "display/nr-arena-forward.h"
25 #include "libnr/nr-forward.h"
26 #include "sp-object-group.h"
27 #include "uri-references.h"
28 #include "xml/node.h"
30 struct SPClipPath : public SPObjectGroup {
31 class Reference;
33 unsigned int clipPathUnits_set : 1;
34 unsigned int clipPathUnits : 1;
36 SPClipPathView *display;
37 };
39 struct SPClipPathClass {
40 SPObjectGroupClass parent_class;
41 };
43 GType sp_clippath_get_type (void);
45 class SPClipPathReference : public Inkscape::URIReference {
46 public:
47 SPClipPathReference(SPObject *obj) : URIReference(obj) {}
48 SPClipPath *getObject() const {
49 return (SPClipPath *)URIReference::getObject();
50 }
51 protected:
52 /**
53 * If the owner element of this reference (the element with <... clippath="...">)
54 * is a child of the clippath it refers to, return false.
55 * \return false if obj is not a clippath or if obj is a parent of this
56 * reference's owner element. True otherwise.
57 */
58 virtual bool _acceptObject(SPObject *obj) const {
59 if (!SP_IS_CLIPPATH(obj)) {
60 return false;
61 }
62 SPObject * const owner = this->getOwner();
63 if (obj->isAncestorOf(owner)) {
64 Inkscape::XML::Node * const owner_repr = owner->repr;
65 Inkscape::XML::Node * const obj_repr = obj->repr;
66 gchar const * owner_name = NULL;
67 gchar const * owner_clippath = NULL;
68 gchar const * obj_name = NULL;
69 gchar const * obj_id = NULL;
70 if (owner_repr != NULL) {
71 owner_name = owner_repr->name();
72 owner_clippath = owner_repr->attribute("clippath");
73 }
74 if (obj_repr != NULL) {
75 obj_name = obj_repr->name();
76 obj_id = obj_repr->attribute("id");
77 }
78 g_warning("Ignoring recursive clippath reference "
79 "<%s clippath=\"%s\"> in <%s id=\"%s\">",
80 owner_name, owner_clippath,
81 obj_name, obj_id);
82 return false;
83 }
84 return true;
85 }
86 };
88 NRArenaItem *sp_clippath_show(SPClipPath *cp, NRArena *arena, unsigned int key);
89 void sp_clippath_hide(SPClipPath *cp, unsigned int key);
91 void sp_clippath_set_bbox(SPClipPath *cp, unsigned int key, NRRect *bbox);
92 void sp_clippath_get_bbox(SPClipPath *cp, NRRect *bbox, Geom::Matrix const &transform, unsigned const flags);
94 const gchar *sp_clippath_create (GSList *reprs, SPDocument *document, Geom::Matrix const* applyTransform);
96 #endif