1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /** @file 3 * @brief SVG Gaussian blur filter effect 4 *//* 5 * Authors: 6 * Hugo Rodrigues <haa.rodrigues@gmail.com> 7 * 8 * Copyright (C) 2006 Hugo Rodrigues 9 * 10 * Released under GNU GPL v2+, read the file 'COPYING' for more information. 11 */ 12 13 #ifndef SP_GAUSSIANBLUR_H_SEEN 14 #define SP_GAUSSIANBLUR_H_SEEN 15 16 #include "sp-filter-primitive.h" 17 #include "number-opt-number.h" 18 19 #define SP_GAUSSIANBLUR(obj) (dynamic_cast<SPGaussianBlur*>((SPObject*)obj)) 20 #define SP_IS_GAUSSIANBLUR(obj) (dynamic_cast<const SPGaussianBlur*>((SPObject*)obj) != NULL) 21 22 class SPGaussianBlur : public SPFilterPrimitive { 23 public: 24 SPGaussianBlur(); 25 ~SPGaussianBlur() override; 26 27 /** stdDeviation attribute */ 28 NumberOptNumber stdDeviation; 29 30 Geom::Rect calculate_region(Geom::Rect region) override; 31 32 protected: 33 void build(SPDocument* doc, Inkscape::XML::Node* repr) override; 34 void release() override; 35 36 void set(SPAttr key, const gchar* value) override; 37 38 void update(SPCtx* ctx, unsigned int flags) override; 39 40 Inkscape::XML::Node* write(Inkscape::XML::Document* doc, Inkscape::XML::Node* repr, guint flags) override; 41 42 void build_renderer(Inkscape::Filters::Filter* filter) override; 43 }; 44 45 void sp_gaussianBlur_setDeviation(SPGaussianBlur *blur, float num); 46 void sp_gaussianBlur_setDeviation(SPGaussianBlur *blur, float num, float optnum); 47 48 #endif /* !SP_GAUSSIANBLUR_H_SEEN */ 49 50 /* 51 Local Variables: 52 mode:c++ 53 c-file-style:"stroustrup" 54 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) 55 indent-tabs-mode:nil 56 fill-column:99 57 End: 58 */ 59 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 : 60