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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* TODO: insert short description here
*//*
* Authors: see git history
*
* Copyright (C) 2018 Authors
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
/*
* attribute-sort-util.cpp
*
* Created on: Jun 10, 2016
* Author: Tavmjong Bah
*/
/**
* Utility functions for sorting attributes by name.
*/
#include <fstream>
#include <sstream>
#include <iostream>
#include <vector>
#include <utility> // std::pair
#include <algorithm> // std::sort
#include <glibmm/ustring.h>
#include "attribute-sort-util.h"
#include "xml/repr.h"
#include "xml/attribute-record.h"
#include "xml/sp-css-attr.h"
#include "attributes.h"
using Inkscape::XML::Node;
using Inkscape::XML::AttributeRecord;
static void sp_attribute_sort_recursive(Node& repr);
static void sp_attribute_sort_element(Node& repr);
static void sp_attribute_sort_style(Node& repr);
static void sp_attribute_sort_style(Node& repr, SPCSSAttr& css);
/**
* Sort attributes by name.
*/
void sp_attribute_sort_tree(Node& repr) {
sp_attribute_sort_recursive( repr );
}
/**
* Sort recursively over all elements.
*/
static void sp_attribute_sort_recursive(Node& repr) {
if( repr.type() == Inkscape::XML::NodeType::ELEMENT_NODE ) {
Glib::ustring element = repr.name();
// Only sort elements in svg namespace
if( element.substr(0,4) == "svg:" ) {
sp_attribute_sort_element( repr );
}
}
for(Node *child=repr.firstChild() ; child ; child = child->next()) {
sp_attribute_sort_recursive( *child );
}
}
/**
* Compare function
*/
static bool cmp(std::pair< Glib::ustring, Glib::ustring > const &a,
std::pair< Glib::ustring, Glib::ustring > const &b) {
auto val_a = sp_attribute_lookup(a.first.c_str());
auto val_b = sp_attribute_lookup(b.first.c_str());
if (val_a == SPAttr::INVALID) return false; // Unknown attributes at end.
if (val_b == SPAttr::INVALID) return true; // Unknown attributes at end.
return val_a < val_b;
}
/**
* Sort attributes on an element
*/
static void sp_attribute_sort_element(Node& repr) {
g_return_if_fail (repr.type() == Inkscape::XML::NodeType::ELEMENT_NODE);
sp_attribute_sort_style(repr);
// Sort attributes:
// It doesn't seem possible to sort a List directly so we dump the list into
// a std::list and sort that. Not very efficient. Sad.
std::vector<std::pair< Glib::ustring, Glib::ustring > > my_list;
for ( const auto & iter : repr.attributeList()) {
Glib::ustring attribute = g_quark_to_string(iter.key);
Glib::ustring value = (const char*)iter.value;
// C++11 my_list.emlace_back(attribute, value);
my_list.emplace_back(attribute,value);
}
std::sort(my_list.begin(), my_list.end(), cmp);
// Delete all attributes.
for (const auto& it : my_list) {
// Removing "inkscape:label" results in crash when Layers dialog is open.
if (it.first != "inkscape:label") {
repr.removeAttribute(it.first);
}
}
// Insert all attributes in proper order
for (const auto& it : my_list) {
if (it.first != "inkscape:label") {
repr.setAttribute( it.first, it.second);
}
}
}
/**
* Sort CSS style on an element.
*/
static void sp_attribute_sort_style(Node& repr) {
g_return_if_fail (repr.type() == Inkscape::XML::NodeType::ELEMENT_NODE);
// Find element's style
SPCSSAttr *css = sp_repr_css_attr( &repr, "style" );
sp_attribute_sort_style(repr, *css);
// Convert css node's properties data to string and set repr node's attribute "style" to that string.
// sp_repr_css_set( repr, css, "style"); // Don't use as it will cause loop.
Glib::ustring value;
sp_repr_css_write_string(css, value);
repr.setAttributeOrRemoveIfEmpty("style", value);
sp_repr_css_attr_unref( css );
}
/**
* Sort CSS style on an element.
*/
static void sp_attribute_sort_style(Node& repr, SPCSSAttr& css) {
// Loop over all properties in "style" node.
std::vector<std::pair< Glib::ustring, Glib::ustring > > my_list;
for ( const auto & iter : css.attributeList()) {
Glib::ustring property = g_quark_to_string(iter.key);
Glib::ustring value = (const char*)iter.value;
// C++11 my_list.emlace_back(property, value);
my_list.emplace_back(property,value);
}
std::sort(my_list.begin(), my_list.end(), cmp);
// Delete all attributes.
for (const auto& it : my_list) {
sp_repr_css_set_property( &css, it.first.c_str(), nullptr );
}
// Insert all attributes in proper order
for (const auto& it : my_list) {
sp_repr_css_set_property( &css, it.first.c_str(), it.second.c_str() );
}
}
/*
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 :
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