#define __SP_FETURBULENCE_CPP__ /** \file * SVG <feTurbulence> implementation. * */ /* * Authors: * Felipe CorrĂȘa da Silva Sanches <felipe.sanches@gmail.com> * hugo Rodrigues <haa.rodrigues@gmail.com> * * Copyright (C) 2007 Felipe Sanches * Copyright (C) 2006 Hugo Rodrigues * * Released under GNU GPL, read the file 'COPYING' for more information */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include "attributes.h" #include "svg/svg.h" #include "sp-feturbulence.h" #include "helper-fns.h" #include "xml/repr.h" #include <string.h> #include "display/nr-filter.h" #include "display/nr-filter-turbulence.h" /* FeTurbulence base class */ static void sp_feTurbulence_class_init(SPFeTurbulenceClass *klass); static void sp_feTurbulence_init(SPFeTurbulence *feTurbulence); static void sp_feTurbulence_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr); static void sp_feTurbulence_release(SPObject *object); static void sp_feTurbulence_set(SPObject *object, unsigned int key, gchar const *value); static void sp_feTurbulence_update(SPObject *object, SPCtx *ctx, guint flags); static Inkscape::XML::Node *sp_feTurbulence_write(SPObject *object, Inkscape::XML::Node *repr, guint flags); static void sp_feTurbulence_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter); static SPFilterPrimitiveClass *feTurbulence_parent_class; GType sp_feTurbulence_get_type() { static GType feTurbulence_type = 0; if (!feTurbulence_type) { GTypeInfo feTurbulence_info = { sizeof(SPFeTurbulenceClass), NULL, NULL, (GClassInitFunc) sp_feTurbulence_class_init, NULL, NULL, sizeof(SPFeTurbulence), 16, (GInstanceInitFunc) sp_feTurbulence_init, NULL, /* value_table */ }; feTurbulence_type = g_type_register_static(SP_TYPE_FILTER_PRIMITIVE, "SPFeTurbulence", &feTurbulence_info, (GTypeFlags)0); } return feTurbulence_type; } static void sp_feTurbulence_class_init(SPFeTurbulenceClass *klass) { SPObjectClass *sp_object_class = (SPObjectClass *)klass; SPFilterPrimitiveClass * sp_primitive_class = (SPFilterPrimitiveClass *)klass; feTurbulence_parent_class = (SPFilterPrimitiveClass*)g_type_class_peek_parent(klass); sp_object_class->build = sp_feTurbulence_build; sp_object_class->release = sp_feTurbulence_release; sp_object_class->write = sp_feTurbulence_write; sp_object_class->set = sp_feTurbulence_set; sp_object_class->update = sp_feTurbulence_update; sp_primitive_class->build_renderer = sp_feTurbulence_build_renderer; } static void sp_feTurbulence_init(SPFeTurbulence *feTurbulence) { feTurbulence->updated=false; } /** * Reads the Inkscape::XML::Node, and initializes SPFeTurbulence variables. For this to get called, * our name must be associated with a repr via "sp_object_type_register". Best done through * sp-object-repr.cpp's repr_name_entries array. */ static void 00096 sp_feTurbulence_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr) { if (((SPObjectClass *) feTurbulence_parent_class)->build) { ((SPObjectClass *) feTurbulence_parent_class)->build(object, document, repr); } /*LOAD ATTRIBUTES FROM REPR HERE*/ sp_object_read_attr(object, "baseFrequency"); sp_object_read_attr(object, "numOctaves"); sp_object_read_attr(object, "seed"); sp_object_read_attr(object, "stitchTiles"); sp_object_read_attr(object, "type"); } /** * Drops any allocated memory. */ static void 00114 sp_feTurbulence_release(SPObject *object) { if (((SPObjectClass *) feTurbulence_parent_class)->release) ((SPObjectClass *) feTurbulence_parent_class)->release(object); } static bool sp_feTurbulence_read_stitchTiles(gchar const *value){ if (!value) return false; // 'noStitch' is default switch(value[0]){ case 's': if (strncmp(value, "stitch", 6) == 0) return true; break; case 'n': if (strncmp(value, "noStitch", 8) == 0) return false; break; } return false; // 'noStitch' is default } static NR::FilterTurbulenceType sp_feTurbulence_read_type(gchar const *value){ if (!value) return NR::TURBULENCE_TURBULENCE; // 'turbulence' is default switch(value[0]){ case 'f': if (strncmp(value, "fractalNoise", 12) == 0) return NR::TURBULENCE_FRACTALNOISE; break; case 't': if (strncmp(value, "turbulence", 10) == 0) return NR::TURBULENCE_TURBULENCE; break; } return NR::TURBULENCE_TURBULENCE; // 'turbulence' is default } /** * Sets a specific value in the SPFeTurbulence. */ static void 00150 sp_feTurbulence_set(SPObject *object, unsigned int key, gchar const *value) { SPFeTurbulence *feTurbulence = SP_FETURBULENCE(object); (void)feTurbulence; int read_int; double read_num; bool read_bool; NR::FilterTurbulenceType read_type; switch(key) { /*DEAL WITH SETTING ATTRIBUTES HERE*/ case SP_ATTR_BASEFREQUENCY: feTurbulence->baseFrequency.set(value); //From SVG spec: If two <number>s are provided, the first number represents a base frequency in the X direction and the second value represents a base frequency in the Y direction. If one number is provided, then that value is used for both X and Y. if (feTurbulence->baseFrequency.optNumIsSet() == false) feTurbulence->baseFrequency.setOptNumber(feTurbulence->baseFrequency.getNumber()); feTurbulence->updated = false; object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); break; case SP_ATTR_NUMOCTAVES: read_int = (int) helperfns_read_number(value); if (read_int != feTurbulence->numOctaves){ feTurbulence->numOctaves = read_int; feTurbulence->updated = false; object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); } break; case SP_ATTR_SEED: read_num = helperfns_read_number(value); if (read_num != feTurbulence->seed){ feTurbulence->seed = read_num; feTurbulence->updated = false; object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); } break; case SP_ATTR_STITCHTILES: read_bool = sp_feTurbulence_read_stitchTiles(value); if (read_bool != feTurbulence->stitchTiles){ feTurbulence->stitchTiles = read_bool; feTurbulence->updated = false; object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); } break; case SP_ATTR_TYPE: read_type = sp_feTurbulence_read_type(value); if (read_type != feTurbulence->type){ feTurbulence->type = read_type; feTurbulence->updated = false; object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); } break; default: if (((SPObjectClass *) feTurbulence_parent_class)->set) ((SPObjectClass *) feTurbulence_parent_class)->set(object, key, value); break; } } /** * Receives update notifications. */ static void 00215 sp_feTurbulence_update(SPObject *object, SPCtx *ctx, guint flags) { if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG | SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) { /* do something to trigger redisplay, updates? */ } if (((SPObjectClass *) feTurbulence_parent_class)->update) { ((SPObjectClass *) feTurbulence_parent_class)->update(object, ctx, flags); } } /** * Writes its settings to an incoming repr object, if any. */ static Inkscape::XML::Node * 00233 sp_feTurbulence_write(SPObject *object, Inkscape::XML::Node *repr, guint flags) { // Inkscape-only object, not copied during an "plain SVG" dump: if (flags & SP_OBJECT_WRITE_EXT) { if (repr) { // is this sane? //repr->mergeFrom(SP_OBJECT_REPR(object), "id"); } else { repr = SP_OBJECT_REPR(object)->duplicate(NULL); // FIXME } } if (((SPObjectClass *) feTurbulence_parent_class)->write) { ((SPObjectClass *) feTurbulence_parent_class)->write(object, repr, flags); } return repr; } static void sp_feTurbulence_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter) { g_assert(primitive != NULL); g_assert(filter != NULL); SPFeTurbulence *sp_turbulence = SP_FETURBULENCE(primitive); int primitive_n = filter->add_primitive(NR::NR_FILTER_TURBULENCE); NR::FilterPrimitive *nr_primitive = filter->get_primitive(primitive_n); NR::FilterTurbulence *nr_turbulence = dynamic_cast<NR::FilterTurbulence*>(nr_primitive); g_assert(nr_turbulence != NULL); sp_filter_primitive_renderer_common(primitive, nr_primitive); nr_turbulence->set_baseFrequency(0, sp_turbulence->baseFrequency.getNumber()); nr_turbulence->set_baseFrequency(1, sp_turbulence->baseFrequency.getOptNumber()); nr_turbulence->set_numOctaves(sp_turbulence->numOctaves); nr_turbulence->set_seed(sp_turbulence->seed); nr_turbulence->set_stitchTiles(sp_turbulence->stitchTiles); nr_turbulence->set_type(sp_turbulence->type); nr_turbulence->set_updated(sp_turbulence->updated); } /* 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:encoding=utf-8:textwidth=99 :