1 files changed, 122 insertions, 0 deletions
diff --git a/src/object/sp-mask.h b/src/object/sp-mask.h
new file mode 100644
index 0000000..8297705
--- /dev/null
+++ b/src/object/sp-mask.h
@@ -0,0 +1,122 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifndef SEEN_SP_MASK_H
+#define SEEN_SP_MASK_H
+
+/*
+ * SVG <mask> implementation
+ *
+ * Authors:
+ *   Lauris Kaplinski <lauris@kaplinski.com>
+ *   Abhishek Sharma
+ *
+ * Copyright (C) 2003 authors
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include <2geom/rect.h>
+#include "sp-object-group.h"
+#include "uri-references.h"
+#include "xml/node.h"
+
+namespace Inkscape {
+
+class Drawing;
+class DrawingItem;
+
+
+} // namespace Inkscape
+
+struct SPMaskView {
+	SPMaskView *next;
+	unsigned int key;
+	Inkscape::DrawingItem *arenaitem;
+	Geom::OptRect bbox;
+};
+
+class SPMask : public SPObjectGroup {
+public:
+	SPMask();
+	~SPMask() override;
+
+	unsigned int maskUnits_set : 1;
+	unsigned int maskUnits : 1;
+
+	unsigned int maskContentUnits_set : 1;
+	unsigned int maskContentUnits : 1;
+
+	SPMaskView *display;
+
+	Inkscape::DrawingItem *sp_mask_show(Inkscape::Drawing &drawing, unsigned int key);
+	void sp_mask_hide(unsigned int key);
+
+    Geom::OptRect geometricBounds(Geom::Affine const &transform);
+
+    Geom::OptRect visualBounds(Geom::Affine const &transform) ;
+
+	void sp_mask_set_bbox(unsigned int key, Geom::OptRect const &bbox);
+
+protected:
+	void build(SPDocument* doc, Inkscape::XML::Node* repr) override;
+	void release() override;
+
+	void child_added(Inkscape::XML::Node* child, Inkscape::XML::Node* ref) override;
+
+	void set(SPAttr key, const char* value) override;
+
+	void update(SPCtx* ctx, unsigned int flags) override;
+	void modified(unsigned int flags) override;
+
+	Inkscape::XML::Node* write(Inkscape::XML::Document* doc, Inkscape::XML::Node* repr, unsigned int flags) override;
+};
+
+MAKE_SP_OBJECT_TYPECHECK_FUNCTIONS(SP_IS_MASK, SPMask)
+
+class SPMaskReference : public Inkscape::URIReference {
+public:
+	SPMaskReference(SPObject *obj) : URIReference(obj) {}
+	SPMask *getObject() const {
+		return static_cast<SPMask *>(URIReference::getObject());
+	}
+protected:
+    /**
+     * If the owner element of this reference (the element with <... mask="...">)
+     * is a child of the mask it refers to, return false.
+     * \return false if obj is not a mask or if obj is a parent of this
+     *         reference's owner element.  True otherwise.
+     */
+	bool _acceptObject(SPObject *obj) const override {
+		if (!SP_IS_MASK(obj)) {
+		    return false;
+	    }
+	    SPObject * const owner = this->getOwner();
+        if (!URIReference::_acceptObject(obj)) {
+	  //XML Tree being used directly here while it shouldn't be...
+	  Inkscape::XML::Node * const owner_repr = owner->getRepr();
+	  //XML Tree being used directly here while it shouldn't be...
+	  Inkscape::XML::Node * const obj_repr = obj->getRepr();
+            char const * owner_name = "";
+            char const * owner_mask = "";
+            char const * obj_name = "";
+            char const * obj_id = "";
+            if (owner_repr != nullptr) {
+                owner_name = owner_repr->name();
+                owner_mask = owner_repr->attribute("mask");
+            }
+            if (obj_repr != nullptr) {
+                obj_name = obj_repr->name();
+                obj_id = obj_repr->attribute("id");
+            }
+            printf("WARNING: Ignoring recursive mask reference "
+                      "<%s mask=\"%s\"> in <%s id=\"%s\">",
+                      owner_name, owner_mask,
+                      obj_name, obj_id);
+            return false;
+        }
+        return true;
+	}
+};
+
+const char *sp_mask_create (std::vector<Inkscape::XML::Node*> &reprs, SPDocument *document);
+
+#endif // SEEN_SP_MASK_H