src/sp-object-group.cpp

   1 #define __SP_OBJECTGROUP_C__
   2
   3 /*
   4  * Abstract base class for non-item groups
   5  *
   6  * Authors:
   7  *   Lauris Kaplinski <lauris@kaplinski.com>
   8  *
   9  * Copyright (C) 1999-2003 Authors
  10  * Copyright (C) 2001-2002 Ximian, Inc.
  11  *
  12  * Released under GNU GPL, read the file 'COPYING' for more information
  13  */
  14
  15 #include "sp-object-group.h"
  16 #include "xml/repr.h"
  17 #include "document.h"
  18
  19 /*static void sp_objectgroup_class_init (SPObjectGroupClass *klass);
  20 static void sp_objectgroup_init (SPObjectGroup *objectgroup);
  21
  22 static void sp_objectgroup_child_added (SPObject * object, Inkscape::XML::Node * child, Inkscape::XML::Node * ref);
  23 static void sp_objectgroup_remove_child (SPObject * object, Inkscape::XML::Node * child);
  24 static void sp_objectgroup_order_changed (SPObject * object, Inkscape::XML::Node * child, Inkscape::XML::Node * old_ref, Inkscape::XML::Node * new_ref);
  25 static Inkscape::XML::Node *sp_objectgroup_write (SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);*/
  26
  27 //static SPObjectClass *parent_class;
  28
  29 SPObjectClass * SPObjectGroupClass::static_parent_class = 0;
  30
  31 GType
  32 SPObjectGroup::sp_objectgroup_get_type (void)
  33 {
  34         static GType objectgroup_type = 0;
  35         if (!objectgroup_type) {
  36                 GTypeInfo objectgroup_info = {
  37                         sizeof (SPObjectGroupClass),
  38                         NULL,   /* base_init */
  39                         NULL,   /* base_finalize */
  40                         (GClassInitFunc) SPObjectGroupClass::sp_objectgroup_class_init,
  41                         NULL,   /* class_finalize */
  42                         NULL,   /* class_data */
  43                         sizeof (SPObjectGroup),
  44                         16,     /* n_preallocs */
  45                         (GInstanceInitFunc) sp_objectgroup_init,
  46                         NULL,   /* value_table */
  47                 };
  48                 objectgroup_type = g_type_register_static (SP_TYPE_OBJECT, "SPObjectGroup", &objectgroup_info, (GTypeFlags)0);
  49         }
  50         return objectgroup_type;
  51 }
  52
  53 void
  54 SPObjectGroupClass::sp_objectgroup_class_init (SPObjectGroupClass *klass)
  55 {
  56         GObjectClass * object_class;
  57         SPObjectClass * sp_object_class;
  58
  59         object_class = (GObjectClass *) klass;
  60         sp_object_class = (SPObjectClass *) klass;
  61
  62         static_parent_class = (SPObjectClass *)g_type_class_ref (SP_TYPE_OBJECT);
  63
  64         sp_object_class->child_added = SPObjectGroup::sp_objectgroup_child_added;
  65         sp_object_class->remove_child = SPObjectGroup::sp_objectgroup_remove_child;
  66         sp_object_class->order_changed = SPObjectGroup::sp_objectgroup_order_changed;
  67         sp_object_class->write = SPObjectGroup::sp_objectgroup_write;
  68 }
  69
  70 void
  71 SPObjectGroup::sp_objectgroup_init (SPObjectGroup */*objectgroup*/)
  72 {
  73 }
  74
  75 void
  76 SPObjectGroup::sp_objectgroup_child_added (SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
  77 {
  78         if (((SPObjectClass *) (SPObjectGroupClass::static_parent_class))->child_added)
  79                 (* ((SPObjectClass *) (SPObjectGroupClass::static_parent_class))->child_added) (object, child, ref);
  80
  81         object->requestModified(SP_OBJECT_MODIFIED_FLAG);
  82 }
  83
  84 void
  85 SPObjectGroup::sp_objectgroup_remove_child (SPObject *object, Inkscape::XML::Node *child)
  86 {
  87         if (((SPObjectClass *) (SPObjectGroupClass::static_parent_class))->remove_child)
  88                 (* ((SPObjectClass *) (SPObjectGroupClass::static_parent_class))->remove_child) (object, child);
  89
  90         object->requestModified(SP_OBJECT_MODIFIED_FLAG);
  91 }
  92
  93 void
  94 SPObjectGroup::sp_objectgroup_order_changed (SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *old_ref, Inkscape::XML::Node *new_ref)
  95 {
  96         if (((SPObjectClass *) (SPObjectGroupClass::static_parent_class))->order_changed)
  97                 (* ((SPObjectClass *) (SPObjectGroupClass::static_parent_class))->order_changed) (object, child, old_ref, new_ref);
  98
  99         object->requestModified(SP_OBJECT_MODIFIED_FLAG);
 100 }
 101
 102 Inkscape::XML::Node *
 103 SPObjectGroup::sp_objectgroup_write (SPObject *object, Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags)
 104 {
 105         SPObjectGroup *group;
 106         SPObject *child;
 107         Inkscape::XML::Node *crepr;
 108
 109         group = SP_OBJECTGROUP (object);
 110
 111         if (flags & SP_OBJECT_WRITE_BUILD) {
 112                 GSList *l;
 113                 if (!repr) {
 114                         repr = xml_doc->createElement("svg:g");
 115                 }
 116                 l = NULL;
 117                 for ( child = object->first_child() ; child != NULL ; child = SP_OBJECT_NEXT(child) ) {
 118                         crepr = child->updateRepr(xml_doc, NULL, flags);
 119                         if (crepr) l = g_slist_prepend (l, crepr);
 120                 }
 121                 while (l) {
 122                         repr->addChild((Inkscape::XML::Node *) l->data, NULL);
 123                         Inkscape::GC::release((Inkscape::XML::Node *) l->data);
 124                         l = g_slist_remove (l, l->data);
 125                 }
 126         } else {
 127                 for ( child = object->first_child() ; child != NULL ; child = SP_OBJECT_NEXT(child) ) {
 128                         child->updateRepr(flags);
 129                 }
 130         }
 131
 132         if (((SPObjectClass *) (SPObjectGroupClass::static_parent_class))->write)
 133                 ((SPObjectClass *) (SPObjectGroupClass::static_parent_class))->write (object, xml_doc, repr, flags);
 134
 135         return repr;
 136 }
 137