From 267299811df952d08324a39008f52c19641de9e0 Mon Sep 17 00:00:00 2001
From: Tavmjong Bah <tavmjong@free.fr>
Date: Tue, 30 Jan 2018 09:33:01 +0100
Subject: Move classes derived from SPObject to own directory. A lot of header
 clean-up.

---
 src/sp-style-elem.cpp | 533 --------------------------------------------------
 1 file changed, 533 deletions(-)
 delete mode 100644 src/sp-style-elem.cpp

(limited to 'src/sp-style-elem.cpp')

diff --git a/src/sp-style-elem.cpp b/src/sp-style-elem.cpp
deleted file mode 100644
index da02d4ef1..000000000
--- a/src/sp-style-elem.cpp
+++ /dev/null
@@ -1,533 +0,0 @@
-#include <libcroco/cr-parser.h>
-#include "xml/node-event-vector.h"
-#include "xml/repr.h"
-#include "document.h"
-#include "sp-style-elem.h"
-#include "sp-root.h"
-#include "attributes.h"
-#include "style.h"
-
-// For external style sheets
-#include "io/resource.h"
-#include <iostream>
-#include <fstream>
-
-// For font-rule
-#include "libnrtype/FontFactory.h"
-
-using Inkscape::XML::TEXT_NODE;
-
-SPStyleElem::SPStyleElem() : SPObject() {
-    media_set_all(this->media);
-    this->is_css = false;
-}
-
-SPStyleElem::~SPStyleElem() {
-}
-
-void SPStyleElem::set(unsigned int key, const gchar* value) {
-    switch (key) {
-        case SP_ATTR_TYPE: {
-            if (!value) {
-                /* TODO: `type' attribute is required.  Give error message as per
-                   http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing. */
-                is_css = false;
-            } else {
-                /* fixme: determine what whitespace is allowed.  Will probably need to ask on SVG
-                  list; though the relevant RFC may give info on its lexer. */
-                is_css = ( g_ascii_strncasecmp(value, "text/css", 8) == 0
-                           && ( value[8] == '\0' ||
-                                value[8] == ';'    ) );
-            }
-            break;
-        }
-
-#if 0 /* unfinished */
-        case SP_ATTR_MEDIA: {
-            parse_media(style_elem, value);
-            break;
-        }
-#endif
-
-        /* title is ignored. */
-        default: {
-            SPObject::set(key, value);
-            break;
-        }
-    }
-}
-
-
-static void
-child_add_rm_cb(Inkscape::XML::Node *, Inkscape::XML::Node *, Inkscape::XML::Node *,
-                void *const data)
-{
-    SPObject *obj = reinterpret_cast<SPObject *>(data);
-    g_assert(data != NULL);
-    obj->read_content();
-}
-
-static void
-content_changed_cb(Inkscape::XML::Node *, gchar const *, gchar const *,
-                   void *const data)
-{
-    SPObject *obj = reinterpret_cast<SPObject *>(data);
-    g_assert(data != NULL);
-    obj->read_content();
-    obj->document->getRoot()->emitModified( SP_OBJECT_MODIFIED_CASCADE );
-}
-
-static void
-child_order_changed_cb(Inkscape::XML::Node *, Inkscape::XML::Node *,
-                       Inkscape::XML::Node *, Inkscape::XML::Node *,
-                       void *const data)
-{
-    SPObject *obj = reinterpret_cast<SPObject *>(data);
-    g_assert(data != NULL);
-    obj->read_content();
-}
-
-Inkscape::XML::Node* SPStyleElem::write(Inkscape::XML::Document* xml_doc, Inkscape::XML::Node* repr, guint flags) {
-    if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
-        repr = xml_doc->createElement("svg:style");
-    }
-
-    if (flags & SP_OBJECT_WRITE_BUILD) {
-        g_warning("nyi: Forming <style> content for SP_OBJECT_WRITE_BUILD.");
-        /* fixme: Consider having the CRStyleSheet be a member of SPStyleElem, and then
-           pretty-print to a string s, then repr->addChild(xml_doc->createTextNode(s), NULL). */
-    }
-    if (is_css) {
-        repr->setAttribute("type", "text/css");
-    }
-    /* todo: media */
-
-    SPObject::write(xml_doc, repr, flags);
-
-    return repr;
-}
-
-
-/** Returns the concatenation of the content of the text children of the specified object. */
-static Glib::ustring
-concat_children(Inkscape::XML::Node const &repr)
-{
-    Glib::ustring ret;
-    // effic: Initialising ret to a reasonable starting size could speed things up.
-    for (Inkscape::XML::Node const *rch = repr.firstChild(); rch != NULL; rch = rch->next()) {
-        if ( rch->type() == TEXT_NODE ) {
-            ret += rch->content();
-        }
-    }
-    return ret;
-}
-
-
-
-/* Callbacks for SAC-style libcroco parser. */
-
-enum StmtType { NO_STMT, FONT_FACE_STMT, NORMAL_RULESET_STMT };
-
-struct ParseTmp
-{
-    CRStyleSheet *const stylesheet;
-    StmtType stmtType;
-    CRStatement *currStmt;
-    SPDocument *const document; // Need file location for '@import'
-    unsigned magic;
-    static unsigned const ParseTmp_magic = 0x23474397;  // from /dev/urandom
-
-    ParseTmp(CRStyleSheet *const stylesheet, SPDocument *const document) :
-        stylesheet(stylesheet),
-        stmtType(NO_STMT),
-        currStmt(NULL),
-        document(document),
-        magic(ParseTmp_magic)
-    { }
-
-    bool hasMagic() const {
-        return magic == ParseTmp_magic;
-    }
-
-    ~ParseTmp()
-    {
-        g_return_if_fail(hasMagic());
-        magic = 0;
-    }
-};
-
-CRParser*
-parser_init(CRStyleSheet *const stylesheet, SPDocument *const document);
-
-static void
-import_style_cb (CRDocHandler *a_handler,
-                 GList *a_media_list,
-                 CRString *a_uri,
-                 CRString *a_uri_default_ns,
-                 CRParsingLocation *a_location)
-{
-    /* a_uri_default_ns is set to NULL and is unused by libcroco */
-
-    // Get document
-    g_return_if_fail(a_handler && a_uri);
-    g_return_if_fail(a_handler->app_data != NULL);
-    ParseTmp &parse_tmp = *static_cast<ParseTmp *>(a_handler->app_data);
-    g_return_if_fail(parse_tmp.hasMagic());
-
-    SPDocument* document = parse_tmp.document;
-    if (!document) {
-        std::cerr << "import_style_cb: No document!" << std::endl;
-        return;
-    }
-    if (!document->style_sheet) {
-        std::cerr << "import_style_cb: No document style sheet!" << std::endl;
-        return;
-    }
-    if (!document->getURI()) {
-        std::cerr << "import_style_cb: Document URI is NULL" << std::endl;
-        return;
-    }
-
-    // Get file
-    Glib::ustring import_file =
-        Inkscape::IO::Resource::get_filename (document->getURI(), a_uri->stryng->str);
-
-    // Parse file
-    CRStyleSheet *stylesheet = cr_stylesheet_new (NULL);
-    CRParser *parser = parser_init(stylesheet, document);
-    CRStatus const parse_status =
-        cr_parser_parse_file (parser, reinterpret_cast<const guchar *>(import_file.c_str()), CR_UTF_8);
-    if (parse_status == CR_OK) {
-        cr_stylesheet_append_import (document->style_sheet, stylesheet);
-    } else {
-        std::cerr << "import_style_cb: Could not parse: " << import_file << std::endl;
-        cr_stylesheet_destroy (stylesheet);
-    }
-
-    // Need to delete ParseTmp created by parser_init()
-    CRDocHandler *sac_handler = NULL;
-    cr_parser_get_sac_handler (parser, &sac_handler);
-    ParseTmp *parse_new = reinterpret_cast<ParseTmp *>(sac_handler->app_data);
-    cr_parser_destroy(parser);
-    delete parse_new;
-};
-
-/* NOT USED, incomplete libcroco implementation */
-static void
-import_style_result_cb (CRDocHandler *a_this,
-                        GList *a_media_list,
-                        CRString *a_uri,
-                        CRString *a_uri_default_ns,
-                        CRStyleSheet *a_sheet)
-{
-    /* a_uri_default_ns and a_sheet are set to NULL and are unused by libcroco */
-    std::cerr << "import_style_result_cb: unimplemented" << std::endl;
-};
-
-static void
-start_selector_cb(CRDocHandler *a_handler,
-                  CRSelector *a_sel_list)
-{
-    g_return_if_fail(a_handler && a_sel_list);
-    g_return_if_fail(a_handler->app_data != NULL);
-    ParseTmp &parse_tmp = *static_cast<ParseTmp *>(a_handler->app_data);
-    g_return_if_fail(parse_tmp.hasMagic());
-    if ( (parse_tmp.currStmt != NULL)
-         || (parse_tmp.stmtType != NO_STMT) ) {
-        g_warning("Expecting currStmt==NULL and stmtType==0 (NO_STMT) at start of ruleset, but found currStmt=%p, stmtType=%u",
-                  static_cast<void *>(parse_tmp.currStmt), unsigned(parse_tmp.stmtType));
-        // fixme: Check whether we need to unref currStmt if non-NULL.
-    }
-    CRStatement *ruleset = cr_statement_new_ruleset(parse_tmp.stylesheet, a_sel_list, NULL, NULL);
-    g_return_if_fail(ruleset && ruleset->type == RULESET_STMT);
-    parse_tmp.stmtType = NORMAL_RULESET_STMT;
-    parse_tmp.currStmt = ruleset;
-}
-
-static void
-end_selector_cb(CRDocHandler *a_handler,
-                CRSelector *a_sel_list)
-{
-    g_return_if_fail(a_handler && a_sel_list);
-    g_return_if_fail(a_handler->app_data != NULL);
-    ParseTmp &parse_tmp = *static_cast<ParseTmp *>(a_handler->app_data);
-    g_return_if_fail(parse_tmp.hasMagic());
-    CRStatement *const ruleset = parse_tmp.currStmt;
-    if (parse_tmp.stmtType == NORMAL_RULESET_STMT
-        && ruleset
-        && ruleset->type == RULESET_STMT
-        && ruleset->kind.ruleset->sel_list == a_sel_list)
-    {
-        parse_tmp.stylesheet->statements = cr_statement_append(parse_tmp.stylesheet->statements,
-                                                               ruleset);
-    } else {
-        g_warning("Found stmtType=%u, stmt=%p, stmt.type=%u, ruleset.sel_list=%p, a_sel_list=%p.",
-                  unsigned(parse_tmp.stmtType),
-                  ruleset,
-                  unsigned(ruleset->type),
-                  ruleset->kind.ruleset->sel_list,
-                  a_sel_list);
-    }
-    parse_tmp.currStmt = NULL;
-    parse_tmp.stmtType = NO_STMT;
-}
-
-static void
-start_font_face_cb(CRDocHandler *a_handler,
-                   CRParsingLocation *)
-{
-    g_return_if_fail(a_handler->app_data != NULL);
-    ParseTmp &parse_tmp = *static_cast<ParseTmp *>(a_handler->app_data);
-    g_return_if_fail(parse_tmp.hasMagic());
-    if (parse_tmp.stmtType != NO_STMT || parse_tmp.currStmt != NULL) {
-        g_warning("Expecting currStmt==NULL and stmtType==0 (NO_STMT) at start of @font-face, but found currStmt=%p, stmtType=%u",
-                  static_cast<void *>(parse_tmp.currStmt), unsigned(parse_tmp.stmtType));
-        // fixme: Check whether we need to unref currStmt if non-NULL.
-    }
-    CRStatement *font_face_rule = cr_statement_new_at_font_face_rule (parse_tmp.stylesheet, NULL);
-    g_return_if_fail(font_face_rule && font_face_rule->type == AT_FONT_FACE_RULE_STMT);
-    parse_tmp.stmtType = FONT_FACE_STMT;
-    parse_tmp.currStmt = font_face_rule;
-}
-
-static void
-end_font_face_cb(CRDocHandler *a_handler)
-{
-    g_return_if_fail(a_handler->app_data != NULL);
-    ParseTmp &parse_tmp = *static_cast<ParseTmp *>(a_handler->app_data);
-    g_return_if_fail(parse_tmp.hasMagic());
-
-    CRStatement *const font_face_rule = parse_tmp.currStmt;
-    if (parse_tmp.stmtType == FONT_FACE_STMT
-        && font_face_rule
-        && font_face_rule->type == AT_FONT_FACE_RULE_STMT)
-    {
-        parse_tmp.stylesheet->statements = cr_statement_append(parse_tmp.stylesheet->statements,
-                                                               font_face_rule);
-    } else {
-        g_warning("Found stmtType=%u, stmt=%p, stmt.type=%u.",
-                  unsigned(parse_tmp.stmtType),
-                  font_face_rule,
-                  unsigned(font_face_rule->type));
-    }
-
-    std::cout << "end_font_face_cb: font face rule limited support." << std::endl;
-    cr_declaration_dump (font_face_rule->kind.font_face_rule->decl_list, stdout, 2, TRUE);
-    printf ("\n");
-
-    // Get document
-    SPDocument* document = parse_tmp.document;
-    if (!document) {
-        std::cerr << "end_font_face_cb: No document!" << std::endl;
-        return;
-    }
-    if (!document->getURI()) {
-        std::cerr << "end_font_face_cb: Document URI is NULL" << std::endl;
-        return;
-    }
-
-    // Add ttf or otf fonts.
-    CRDeclaration const *cur = NULL;
-    for (cur = font_face_rule->kind.font_face_rule->decl_list; cur; cur = cur->next) {
-        if (cur->property &&
-            cur->property->stryng &&
-            cur->property->stryng->str &&
-            strcmp(cur->property->stryng->str, "src") == 0 ) {
-
-            if (cur->value &&
-                cur->value->content.str &&
-                cur->value->content.str->stryng &&
-                cur->value->content.str->stryng->str) {
-
-                Glib::ustring value = cur->value->content.str->stryng->str;
-                std::size_t found = value.find_last_of("ttf");
-
-                if (value.rfind("ttf") == (value.length() - 3) ||
-                    value.rfind("otf") == (value.length() - 3)) {
-
-                    // Get file
-                    Glib::ustring ttf_file =
-                        Inkscape::IO::Resource::get_filename (document->getURI(), value);
-
-                    if (!ttf_file.empty()) {
-                        font_factory *factory = font_factory::Default();
-                        factory->AddFontFile( ttf_file.c_str() );
-                        std::cout << "end_font_face_cb: Added font: " << ttf_file << std::endl;
-
-                        // FIX ME: Need to refresh font list.
-                    } else {
-                        std::cout << "end_font_face_cb: Failed to add: " << value << std::endl;
-                    }
-                }
-            }
-        }
-    }
-
-    parse_tmp.currStmt = NULL;
-    parse_tmp.stmtType = NO_STMT;
-
-}
-
-static void
-property_cb(CRDocHandler *const a_handler,
-            CRString *const a_name,
-            CRTerm *const a_value, gboolean const a_important)
-{
-    // std::cout << "property_cb: Entrance: " << a_name->stryng->str << ": " << cr_term_to_string(a_value) << std::endl;
-    g_return_if_fail(a_handler && a_name);
-    g_return_if_fail(a_handler->app_data != NULL);
-    ParseTmp &parse_tmp = *static_cast<ParseTmp *>(a_handler->app_data);
-    g_return_if_fail(parse_tmp.hasMagic());
-
-    CRStatement *const ruleset = parse_tmp.currStmt;
-    g_return_if_fail(ruleset);
-
-    CRDeclaration *const decl = cr_declaration_new (ruleset, cr_string_dup(a_name), a_value);
-    g_return_if_fail(decl);
-    decl->important = a_important;
-
-    switch (parse_tmp.stmtType) {
-
-        case NORMAL_RULESET_STMT: {
-            g_return_if_fail (ruleset->type == RULESET_STMT);
-            CRStatus const append_status = cr_statement_ruleset_append_decl (ruleset, decl);
-            g_return_if_fail (append_status == CR_OK);
-            break;
-        }
-        case FONT_FACE_STMT: {
-            g_return_if_fail (ruleset->type == AT_FONT_FACE_RULE_STMT);
-            CRDeclaration *new_decls = cr_declaration_append (ruleset->kind.font_face_rule->decl_list, decl);
-            g_return_if_fail (new_decls);
-            ruleset->kind.font_face_rule->decl_list = new_decls;
-            break;
-        }
-        default:
-            g_warning ("property_cb: Unhandled stmtType: %u", parse_tmp.stmtType);
-            return;
-    }
-}
-
-CRParser*
-parser_init(CRStyleSheet *const stylesheet, SPDocument *const document) {
-
-    ParseTmp *parse_tmp = new ParseTmp(stylesheet, document);
-
-    CRDocHandler *sac_handler = cr_doc_handler_new();
-    sac_handler->app_data = parse_tmp;
-    sac_handler->import_style = import_style_cb;
-    sac_handler->start_selector = start_selector_cb;
-    sac_handler->end_selector = end_selector_cb;
-    sac_handler->start_font_face = start_font_face_cb;
-    sac_handler->end_font_face = end_font_face_cb;
-    sac_handler->property = property_cb;
-
-    CRParser *parser = cr_parser_new (NULL);
-    cr_parser_set_sac_handler(parser, sac_handler);
-
-    return parser;
-}
-
-void update_style_recursively( SPObject *object ) {
-    if (object) {
-        // std::cout << "update_style_recursively: "
-        //           << (object->getId()?object->getId():"null") << std::endl;
-        if (object->style) {
-            object->style->readFromObject( object );
-        }
-        for (auto& child : object->children) {
-            update_style_recursively( &child );
-        }
-    }
-}
-
-void SPStyleElem::read_content() {
-
-    // This won't work when we support multiple style sheets in a file.
-    // We'll need to identify which style sheet this element corresponds to
-    // and replace just that part of the total style sheet. (The first
-    // style element would correspond to document->style_sheet, while
-    // laters ones are chained on using style_sheet->next).
-
-    document->style_sheet = cr_stylesheet_new (NULL);
-    CRParser *parser = parser_init(document->style_sheet, document);
-
-    CRDocHandler *sac_handler = NULL;
-    cr_parser_get_sac_handler (parser, &sac_handler);
-    ParseTmp *parse_tmp = reinterpret_cast<ParseTmp *>(sac_handler->app_data);
-
-    //XML Tree being used directly here while it shouldn't be.
-    Glib::ustring const text = concat_children(*getRepr());
-    CRStatus const parse_status =
-        cr_parser_parse_buf (parser, reinterpret_cast<const guchar *>(text.c_str()), text.bytes(), CR_UTF_8);
-
-    // std::cout << "SPStyeElem::read_content: result:" << std::endl;
-    // const gchar* string = cr_stylesheet_to_string (document->style_sheet);
-    // std::cout << (string?string:"Null") << std::endl;
-
-    if (parse_status == CR_OK) {
-        // Also destroys old style sheet:
-        cr_cascade_set_sheet (document->style_cascade, document->style_sheet, ORIGIN_AUTHOR);
-    } else {
-        cr_stylesheet_destroy (document->style_sheet);
-        document->style_sheet = NULL;
-        if (parse_status != CR_PARSING_ERROR) {
-            g_printerr("parsing error code=%u\n", unsigned(parse_status));
-            /* Better than nothing.  TODO: Improve libcroco's error handling.  At a minimum, add a
-               strerror-like function so that we can give a string rather than an integer. */
-            /* TODO: Improve error diagnosis stuff in inkscape.  We'd like a panel showing the
-               errors/warnings/unsupported features of the current document. */
-        }
-    }
-
-    cr_parser_destroy(parser);
-    delete parse_tmp;
-
-    // If style sheet has changed, we need to cascade the entire object tree, top down
-    // Get root, read style, loop through children
-    update_style_recursively( (SPObject *)document->getRoot() );
-    // cr_stylesheet_dump (document->style_sheet, stdout);
-}
-
-/**
- * Does addListener(fns, data) on \a repr and all of its descendents.
- */
-static void
-rec_add_listener(Inkscape::XML::Node &repr,
-                 Inkscape::XML::NodeEventVector const *const fns, void *const data)
-{
-    repr.addListener(fns, data);
-    for (Inkscape::XML::Node *child = repr.firstChild(); child != NULL; child = child->next()) {
-        rec_add_listener(*child, fns, data);
-    }
-}
-
-void SPStyleElem::build(SPDocument *document, Inkscape::XML::Node *repr) {
-    read_content();
-
-    readAttr( "type" );
-    readAttr( "media" );
-
-    static Inkscape::XML::NodeEventVector const nodeEventVector = {
-        child_add_rm_cb,   // child_added
-        child_add_rm_cb,   // child_removed
-        NULL,   // attr_changed
-        content_changed_cb,   // content_changed
-        child_order_changed_cb,   // order_changed
-    };
-    rec_add_listener(*repr, &nodeEventVector, this);
-
-    SPObject::build(document, 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:fileencoding=utf-8:textwidth=99 :
-- 
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