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#define __SP_SKELETON_CPP__
/** \file
* SVG <skeleton> implementation, used as an example for a base starting class
* when implementing new sp-objects.
*
* In vi, three global search-and-replaces will let you rename everything
* in this and the .h file:
*
* :%s/SKELETON/YOURNAME/g
* :%s/Skeleton/Yourname/g
* :%s/skeleton/yourname/g
*/
/*
* Authors:
* Kees Cook <kees@outflux.net>
*
* Copyright (C) 2004 Kees Cook
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "attributes.h"
#include "sp-skeleton.h"
#include "xml/repr.h"
#define DEBUG_SKELETON
#ifdef DEBUG_SKELETON
# 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
/* Skeleton base class */
static void sp_skeleton_class_init(SPSkeletonClass *klass);
static void sp_skeleton_init(SPSkeleton *skeleton);
static void sp_skeleton_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
static void sp_skeleton_release(SPObject *object);
static void sp_skeleton_set(SPObject *object, unsigned int key, gchar const *value);
static void sp_skeleton_update(SPObject *object, SPCtx *ctx, guint flags);
static Inkscape::XML::Node *sp_skeleton_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
static SPObjectClass *skeleton_parent_class;
GType
sp_skeleton_get_type()
{
static GType skeleton_type = 0;
if (!skeleton_type) {
GTypeInfo skeleton_info = {
sizeof(SPSkeletonClass),
NULL, NULL,
(GClassInitFunc) sp_skeleton_class_init,
NULL, NULL,
sizeof(SPSkeleton),
16,
(GInstanceInitFunc) sp_skeleton_init,
NULL, /* value_table */
};
skeleton_type = g_type_register_static(SP_TYPE_OBJECT, "SPSkeleton", &skeleton_info, (GTypeFlags)0);
}
return skeleton_type;
}
static void
sp_skeleton_class_init(SPSkeletonClass *klass)
{
//GObjectClass *gobject_class = (GObjectClass *)klass;
SPObjectClass *sp_object_class = (SPObjectClass *)klass;
skeleton_parent_class = (SPObjectClass*)g_type_class_peek_parent(klass);
sp_object_class->build = sp_skeleton_build;
sp_object_class->release = sp_skeleton_release;
sp_object_class->write = sp_skeleton_write;
sp_object_class->set = sp_skeleton_set;
sp_object_class->update = sp_skeleton_update;
}
static void
sp_skeleton_init(SPSkeleton *skeleton)
{
debug("0x%p",skeleton);
}
/**
* Reads the Inkscape::XML::Node, and initializes SPSkeleton 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_skeleton_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
{
debug("0x%p",object);
if (((SPObjectClass *) skeleton_parent_class)->build) {
((SPObjectClass *) skeleton_parent_class)->build(object, document, repr);
}
/*
Pay attention to certain settings here
sp_object_read_attr(object, "xlink:href");
sp_object_read_attr(object, "attributeName");
sp_object_read_attr(object, "attributeType");
sp_object_read_attr(object, "begin");
sp_object_read_attr(object, "dur");
sp_object_read_attr(object, "end");
sp_object_read_attr(object, "min");
sp_object_read_attr(object, "max");
sp_object_read_attr(object, "restart");
sp_object_read_attr(object, "repeatCount");
sp_object_read_attr(object, "repeatDur");
sp_object_read_attr(object, "fill");
*/
}
/**
* Drops any allocated memory.
*/
static void
sp_skeleton_release(SPObject *object)
{
debug("0x%p",object);
/* deal with our children and our selves here */
if (((SPObjectClass *) skeleton_parent_class)->release)
((SPObjectClass *) skeleton_parent_class)->release(object);
}
/**
* Sets a specific value in the SPSkeleton.
*/
static void
sp_skeleton_set(SPObject *object, unsigned int key, gchar const *value)
{
debug("0x%p %s(%u): '%s'",object,
sp_attribute_name(key),key,value);
SPSkeleton *skeleton = SP_SKELETON(object);
/* See if any parents need this value. */
if (((SPObjectClass *) skeleton_parent_class)->set) {
((SPObjectClass *) skeleton_parent_class)->set(object, key, value);
}
}
/**
* Receives update notifications.
*/
static void
sp_skeleton_update(SPObject *object, SPCtx *ctx, guint flags)
{
debug("0x%p",object);
//SPSkeleton *skeleton = SP_SKELETON(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 *) skeleton_parent_class)->update) {
((SPObjectClass *) skeleton_parent_class)->update(object, ctx, flags);
}
}
/**
* Writes its settings to an incoming repr object, if any.
*/
static Inkscape::XML::Node *
sp_skeleton_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
{
debug("0x%p",object);
//SPSkeleton *skeleton = SP_SKELETON(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(repr->document());
}
}
if (((SPObjectClass *) skeleton_parent_class)->write) {
((SPObjectClass *) skeleton_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 :
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