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Diffstat (limited to 'src/sp-gaussian-blur.cpp')
| -rw-r--r-- | src/sp-gaussian-blur.cpp | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/src/sp-gaussian-blur.cpp b/src/sp-gaussian-blur.cpp new file mode 100644 index 000000000..0e26fbbf4 --- /dev/null +++ b/src/sp-gaussian-blur.cpp @@ -0,0 +1,201 @@ +#define __SP_GAUSSIANBLUR_CPP__ + +/** \file + * SVG <gaussianBlur> implementation. + * + */ +/* + * Authors: + * hugo Rodrigues <haa.rodrigues@gmail.com> + * + * 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-gaussian-blur.h" +#include "xml/repr.h" + +//#define SP_MACROS_SILENT +//#include "macros.h" + +#define DEBUG_GAUSSIANBLUR +#ifdef DEBUG_GAUSSIANBLUR +# define debug(f, a...) { g_print("%s(%d) %s:", \ + __FILE__,__LINE__,__FUNCTION__); \ + g_print(f, ## a); \ + g_print("\n"); \ + } +#else +# define debug(f, a...) /**/ +#endif + +/* GaussianBlur base class */ + +static void sp_gaussianBlur_class_init(SPGaussianBlurClass *klass); +static void sp_gaussianBlur_init(SPGaussianBlur *gaussianBlur); + +static void sp_gaussianBlur_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr); +static void sp_gaussianBlur_release(SPObject *object); +static void sp_gaussianBlur_set(SPObject *object, unsigned int key, gchar const *value); +static void sp_gaussianBlur_update(SPObject *object, SPCtx *ctx, guint flags); +static Inkscape::XML::Node *sp_gaussianBlur_write(SPObject *object, Inkscape::XML::Node *repr, guint flags); + +static SPObjectClass *gaussianBlur_parent_class; + +GType +sp_gaussianBlur_get_type() +{ + static GType gaussianBlur_type = 0; + + if (!gaussianBlur_type) { + GTypeInfo gaussianBlur_info = { + sizeof(SPGaussianBlurClass), + NULL, NULL, + (GClassInitFunc) sp_gaussianBlur_class_init, + NULL, NULL, + sizeof(SPGaussianBlur), + 16, + (GInstanceInitFunc) sp_gaussianBlur_init, + NULL, /* value_table */ + }; + gaussianBlur_type = g_type_register_static(SP_TYPE_OBJECT, "SPGaussianBlur", &gaussianBlur_info, (GTypeFlags)0); + } + return gaussianBlur_type; +} + +static void +sp_gaussianBlur_class_init(SPGaussianBlurClass *klass) +{ + SPObjectClass *sp_object_class = (SPObjectClass *)klass; + + gaussianBlur_parent_class = (SPObjectClass*)g_type_class_peek_parent(klass); + + sp_object_class->build = sp_gaussianBlur_build; + sp_object_class->release = sp_gaussianBlur_release; + sp_object_class->write = sp_gaussianBlur_write; + sp_object_class->set = sp_gaussianBlur_set; + sp_object_class->update = sp_gaussianBlur_update; +} + +static void +sp_gaussianBlur_init(SPGaussianBlur *gaussianBlur) +{ + debug("0x%p",gaussianBlur); + +// gaussianBlur->stdDeviation = 1; +} + +/** + * Reads the Inkscape::XML::Node, and initializes SPGaussianBlur 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 +sp_gaussianBlur_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr) +{ + debug("0x%p",object); + if (((SPObjectClass *) gaussianBlur_parent_class)->build) { + ((SPObjectClass *) gaussianBlur_parent_class)->build(object, document, repr); + } + + sp_object_read_attr(object, "stdDeviation"); + +} + +/** + * Drops any allocated memory. + */ +static void +sp_gaussianBlur_release(SPObject *object) +{ + debug("0x%p",object); + + if (((SPObjectClass *) gaussianBlur_parent_class)->release) + ((SPObjectClass *) gaussianBlur_parent_class)->release(object); +} + +/** + * Sets a specific value in the SPGaussianBlur. + */ +static void +sp_gaussianBlur_set(SPObject *object, unsigned int key, gchar const *value) +{ + debug("0x%p %s(%u): '%s'",object, + sp_attribute_name(key),key,value); + SPGaussianBlur *gaussianBlur = SP_GAUSSIANBLUR(object); + + switch(key) { + case SP_ATTR_STDDEVIATION: + gaussianBlur->stdDeviation.set(value); + break; + default: + if (((SPObjectClass *) gaussianBlur_parent_class)->set) + ((SPObjectClass *) gaussianBlur_parent_class)->set(object, key, value); + break; + } + +} + +/** + * Receives update notifications. + */ +static void +sp_gaussianBlur_update(SPObject *object, SPCtx *ctx, guint flags) +{ + debug("0x%p",object); + + if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG | + SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) { + + /* do something to trigger redisplay, updates? */ + + } + + if (((SPObjectClass *) gaussianBlur_parent_class)->update) { + ((SPObjectClass *) gaussianBlur_parent_class)->update(object, ctx, flags); + } +} + +/** + * Writes its settings to an incoming repr object, if any. + */ +static Inkscape::XML::Node * +sp_gaussianBlur_write(SPObject *object, Inkscape::XML::Node *repr, guint flags) +{ + debug("0x%p",object); + + // 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(); + } + } + + if (((SPObjectClass *) gaussianBlur_parent_class)->write) { + ((SPObjectClass *) gaussianBlur_parent_class)->write(object, repr, flags); + } + + return repr; +} + + +/* + 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 : |