src/xml/simple-document.cpp

   1 /*
   2  * Inkscape::XML::SimpleDocument - generic XML document implementation
   3  *
   4  * Copyright 2004-2005 MenTaLguY <mental@rydia.net>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * See the file COPYING for details.
  12  *
  13  */
  14
  15 #include <glib.h> // g_assert()
  16
  17 #include "xml/simple-document.h"
  18 #include "xml/event-fns.h"
  19 #include "xml/element-node.h"
  20 #include "xml/text-node.h"
  21 #include "xml/comment-node.h"
  22 #include "xml/pi-node.h"
  23
  24 namespace Inkscape {
  25
  26 namespace XML {
  27
  28 void SimpleDocument::beginTransaction() {
  29     g_assert(!_in_transaction);
  30     _in_transaction = true;
  31 }
  32
  33 void SimpleDocument::rollback() {
  34     g_assert(_in_transaction);
  35     _in_transaction = false;
  36     Event *log = _log_builder.detach();
  37     sp_repr_undo_log(log);
  38     sp_repr_free_log(log);
  39 }
  40
  41 void SimpleDocument::commit() {
  42     g_assert(_in_transaction);
  43     _in_transaction = false;
  44     _log_builder.discard();
  45 }
  46
  47 Inkscape::XML::Event *SimpleDocument::commitUndoable() {
  48     g_assert(_in_transaction);
  49     _in_transaction = false;
  50     return _log_builder.detach();
  51 }
  52
  53 Node *SimpleDocument::createElement(char const *name) {
  54     return new ElementNode(g_quark_from_string(name), this);
  55 }
  56
  57 Node *SimpleDocument::createTextNode(char const *content) {
  58     return new TextNode(Util::share_string(content), this);
  59 }
  60
  61 Node *SimpleDocument::createComment(char const *content) {
  62     return new CommentNode(Util::share_string(content), this);
  63 }
  64
  65 Node *SimpleDocument::createPI(char const *target, char const *content) {
  66     return new PINode(g_quark_from_string(target), Util::share_string(content), this);
  67 }
  68
  69 void SimpleDocument::notifyChildAdded(Node &parent,
  70                                       Node &child,
  71                                       Node *prev)
  72 {
  73     if (_in_transaction) {
  74         _log_builder.addChild(parent, child, prev);
  75     }
  76 }
  77
  78 void SimpleDocument::notifyChildRemoved(Node &parent,
  79                                         Node &child,
  80                                         Node *prev)
  81 {
  82     if (_in_transaction) {
  83         _log_builder.removeChild(parent, child, prev);
  84     }
  85 }
  86
  87 void SimpleDocument::notifyChildOrderChanged(Node &parent,
  88                                              Node &child,
  89                                              Node *old_prev,
  90                                              Node *new_prev)
  91 {
  92     if (_in_transaction) {
  93         _log_builder.setChildOrder(parent, child, old_prev, new_prev);
  94     }
  95 }
  96
  97 void SimpleDocument::notifyContentChanged(Node &node,
  98                                           Util::ptr_shared<char> old_content,
  99                                           Util::ptr_shared<char> new_content)
 100 {
 101     if (_in_transaction) {
 102         _log_builder.setContent(node, old_content, new_content);
 103     }
 104 }
 105
 106 void SimpleDocument::notifyAttributeChanged(Node &node,
 107                                             GQuark name,
 108                                             Util::ptr_shared<char> old_value,
 109                                             Util::ptr_shared<char> new_value)
 110 {
 111     if (_in_transaction) {
 112         _log_builder.setAttribute(node, name, old_value, new_value);
 113     }
 114 }
 115
 116 }
 117
 118 }
 119
 120 /*
 121   Local Variables:
 122   mode:c++
 123   c-file-style:"stroustrup"
 124   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 125   indent-tabs-mode:nil
 126   fill-column:99
 127   End:
 128 */
 129 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :