diff options
Diffstat (limited to 'src/sp-defs.cpp')
| -rw-r--r-- | src/sp-defs.cpp | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/src/sp-defs.cpp b/src/sp-defs.cpp new file mode 100644 index 000000000..ad6cfc578 --- /dev/null +++ b/src/sp-defs.cpp @@ -0,0 +1,172 @@ +#define __SP_DEFS_C__ + +/* + * SVG <defs> implementation + * + * Authors: + * Lauris Kaplinski <lauris@kaplinski.com> + * + * Copyright (C) 2000-2002 authors + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +/* + * fixme: We should really check childrens validity - currently everything + * flips in + */ + +#include "sp-defs.h" +#include "xml/repr.h" + +static void sp_defs_class_init(SPDefsClass *dc); +static void sp_defs_init(SPDefs *defs); + +static void sp_defs_release(SPObject *object); +static void sp_defs_update(SPObject *object, SPCtx *ctx, guint flags); +static void sp_defs_modified(SPObject *object, guint flags); +static Inkscape::XML::Node *sp_defs_write(SPObject *object, Inkscape::XML::Node *repr, guint flags); + +static SPObjectClass *parent_class; + +GType sp_defs_get_type(void) +{ + static GType defs_type = 0; + + if (!defs_type) { + GTypeInfo defs_info = { + sizeof(SPDefsClass), + NULL, /* base_init */ + NULL, /* base_finalize */ + (GClassInitFunc) sp_defs_class_init, + NULL, /* class_finalize */ + NULL, /* class_data */ + sizeof(SPDefs), + 16, /* n_preallocs */ + (GInstanceInitFunc) sp_defs_init, + NULL, /* value_table */ + }; + defs_type = g_type_register_static(SP_TYPE_OBJECT, "SPDefs", &defs_info, (GTypeFlags) 0); + } + + return defs_type; +} + +static void sp_defs_class_init(SPDefsClass *dc) +{ + parent_class = (SPObjectClass *) g_type_class_ref(SP_TYPE_OBJECT); + SPObjectClass *sp_object_class = (SPObjectClass *) dc; + + sp_object_class->release = sp_defs_release; + sp_object_class->update = sp_defs_update; + sp_object_class->modified = sp_defs_modified; + sp_object_class->write = sp_defs_write; +} + +static void sp_defs_init(SPDefs *defs) +{ + +} + +static void sp_defs_release(SPObject *object) +{ + if (((SPObjectClass *) (parent_class))->release) { + ((SPObjectClass *) (parent_class))->release(object); + } +} + +static void sp_defs_update(SPObject *object, SPCtx *ctx, guint flags) +{ + if (flags & SP_OBJECT_MODIFIED_FLAG) { + flags |= SP_OBJECT_PARENT_MODIFIED_FLAG; + } + + flags &= SP_OBJECT_MODIFIED_CASCADE; + + GSList *l = NULL; + for ( SPObject *child = sp_object_first_child(object) ; child != NULL; child = SP_OBJECT_NEXT(child) ) { + g_object_ref(G_OBJECT(child)); + l = g_slist_prepend(l, child); + } + + l = g_slist_reverse(l); + + while (l) { + SPObject *child = SP_OBJECT(l->data); + l = g_slist_remove(l, child); + if (flags || (child->uflags & SP_OBJECT_MODIFIED_FLAG)) { + child->updateDisplay(ctx, flags); + } + g_object_unref(G_OBJECT(child)); + } +} + +static void sp_defs_modified(SPObject *object, guint flags) +{ + if (flags & SP_OBJECT_MODIFIED_FLAG) { + flags |= SP_OBJECT_PARENT_MODIFIED_FLAG; + } + + flags &= SP_OBJECT_MODIFIED_CASCADE; + + GSList *l = NULL; + for ( SPObject *child = sp_object_first_child(object) ; child != NULL; child = SP_OBJECT_NEXT(child) ) { + g_object_ref(G_OBJECT(child)); + l = g_slist_prepend(l, child); + } + + l = g_slist_reverse(l); + + while (l) { + SPObject *child = SP_OBJECT(l->data); + l = g_slist_remove(l, child); + if (flags || (child->mflags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_CHILD_MODIFIED_FLAG))) { + child->emitModified(flags); + } + g_object_unref(G_OBJECT (child)); + } +} + +static Inkscape::XML::Node *sp_defs_write(SPObject *object, Inkscape::XML::Node *repr, guint flags) +{ + if (flags & SP_OBJECT_WRITE_BUILD) { + + if (!repr) { + repr = sp_repr_new("svg:defs"); + } + + GSList *l = NULL; + for ( SPObject *child = sp_object_first_child(object) ; child != NULL; child = SP_OBJECT_NEXT(child) ) { + Inkscape::XML::Node *crepr = child->updateRepr(NULL, flags); + if (crepr) l = g_slist_prepend(l, crepr); + } + + while (l) { + repr->addChild((Inkscape::XML::Node *) l->data, NULL); + Inkscape::GC::release((Inkscape::XML::Node *) l->data); + l = g_slist_remove(l, l->data); + } + + } else { + for ( SPObject *child = sp_object_first_child(object) ; child != NULL; child = SP_OBJECT_NEXT(child) ) { + child->updateRepr(flags); + } + } + + if (((SPObjectClass *) (parent_class))->write) { + (* ((SPObjectClass *) (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 : |