1 files changed, 121 insertions, 0 deletions
diff --git a/src/object/sp-filter.h b/src/object/sp-filter.h
new file mode 100644
index 0000000..738ba07
--- /dev/null
+++ b/src/object/sp-filter.h
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/** \file
+ * SVG <filter> element
+ *//*
+ * Authors:
+ *   Hugo Rodrigues <haa.rodrigues@gmail.com>
+ *   Niko Kiirala <niko@kiirala.com>
+ *
+ * Copyright (C) 2006,2007 Authors
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+#ifndef SP_FILTER_H_SEEN
+#define SP_FILTER_H_SEEN
+
+#include <glibmm/ustring.h>
+#include <map>
+
+#include "number-opt-number.h"
+#include "sp-dimensions.h"
+#include "sp-object.h"
+#include "sp-item.h"
+#include "sp-filter-units.h"
+#include "svg/svg-length.h"
+
+#define SP_FILTER_FILTER_UNITS(f) (SP_FILTER(f)->filterUnits)
+#define SP_FILTER_PRIMITIVE_UNITS(f) (SP_FILTER(f)->primitiveUnits)
+
+namespace Inkscape {
+namespace Filters {
+class Filter;
+} }
+
+class SPFilterReference;
+class SPFilterPrimitive;
+
+struct ltstr {
+    bool operator()(const char* s1, const char* s2) const;
+};
+
+class SPFilter : public SPObject, public SPDimensions {
+public:
+    SPFilter();
+    ~SPFilter() override;
+
+    /* Initializes the given Inkscape::Filters::Filter object as a renderer for this
+     * SPFilter object. */
+    void build_renderer(Inkscape::Filters::Filter *nr_filter);
+
+    /// Returns the number of filter primitives in this SPFilter object.
+    int primitive_count() const;
+
+    /// Returns a slot number for given image name, or -1 for unknown name.
+    int get_image_name(char const *name) const;
+
+    /// Returns slot number for given image name, even if it's unknown.
+    int set_image_name(char const *name);
+
+    void update_filter_all_regions();
+    void update_filter_region(SPItem *item);
+    void set_filter_region(double x, double y, double width, double height);
+    Geom::Rect get_automatic_filter_region(SPItem *item);
+
+    // Checks each filter primitive to make sure the object won't cause issues
+    bool valid_for(SPObject const *obj) const;
+
+    /** Finds image name based on it's slot number. Returns 0 for unknown slot
+     * numbers. */
+    char const *name_for_image(int const image) const;
+
+    /// Returns a result image name that is not in use inside this filter.
+    Glib::ustring get_new_result_name() const;
+
+    SPFilterUnits filterUnits;
+    unsigned int filterUnits_set : 1;
+    SPFilterUnits primitiveUnits;
+    unsigned int primitiveUnits_set : 1;
+    NumberOptNumber filterRes;
+    SPFilterReference *href;
+    bool auto_region;
+
+    sigc::connection modified_connection;
+
+    guint getRefCount();
+    guint _refcount;
+
+    Inkscape::Filters::Filter *_renderer;
+
+    std::map<gchar *, int, ltstr>* _image_name;
+    int _image_number_next;
+
+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 remove_child(Inkscape::XML::Node* child) override;
+
+    void set(SPAttr key, const char* value) override;
+
+    void modified(unsigned int flags) override;
+    void update(SPCtx* ctx, unsigned int flags) override;
+
+    Inkscape::XML::Node* write(Inkscape::XML::Document* doc, Inkscape::XML::Node* repr, unsigned int flags) override;
+};
+
+MAKE_SP_OBJECT_DOWNCAST_FUNCTIONS(SP_FILTER, SPFilter)
+MAKE_SP_OBJECT_TYPECHECK_FUNCTIONS(SP_IS_FILTER, SPFilter)
+
+#endif /* !SP_FILTER_H_SEEN */
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :