File: SvgShapeFactory.cpp

package info (click to toggle)
calligra 1%3A2.4.4-3
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 290,028 kB
  • sloc: cpp: 1,105,019; xml: 24,940; ansic: 11,807; python: 8,457; perl: 2,792; sh: 1,507; yacc: 1,307; ruby: 1,248; sql: 903; lex: 455; makefile: 89
file content (134 lines) | stat: -rw-r--r-- 4,234 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
/* This file is part of the KDE project
 * Copyright (C) 2011 Jan Hambrecht <jaham@gmx.net>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#include "SvgShapeFactory.h"
#include "SvgParser.h"
#include "KoShapeGroup.h"
#include "KoShapeGroupCommand.h"
#include "KoShapeLoadingContext.h"
#include "KoShapeRegistry.h"
#include <KoOdfLoadingContext.h>
#include <KoXmlNS.h>
#include <KoStore.h>
#include <KoStoreDevice.h>
#include <KLocale>

#define SVGSHAPEFACTORYID "SvgShapeFactory"

SvgShapeFactory::SvgShapeFactory()
    : KoShapeFactoryBase(SVGSHAPEFACTORYID, i18n("Embedded svg shape"))
{
    setLoadingPriority(10);
    setXmlElementNames(QString(KoXmlNS::draw), QStringList("image"));
    // hide from add shapes docker as the shape is not able to be dragged onto 
    // the canvas as createDefaultShape returns 0.
    setHidden(true);
}

SvgShapeFactory::~SvgShapeFactory()
{

}

void SvgShapeFactory::addToRegistry()
{
    KoShapeRegistry *registry = KoShapeRegistry::instance();
    if (!registry->contains(QString(SVGSHAPEFACTORYID))) {
        registry->addFactory(new SvgShapeFactory);
    }
}

bool SvgShapeFactory::supports(const KoXmlElement &element, KoShapeLoadingContext &context) const
{
    if (element.localName() == "image" && element.namespaceURI() == KoXmlNS::draw) {
        QString href = element.attribute("href");
        if (href.isEmpty())
            return false;

        // check the mimetype
        if (href.startsWith("./")) {
            href.remove(0,2);
        }
        const QString mimetype = context.odfLoadingContext().mimeTypeForPath(href);
        return (mimetype == "image/svg+xml");
    }

    return false;
}

KoShape *SvgShapeFactory::createShapeFromOdf(const KoXmlElement &element, KoShapeLoadingContext &context)
{
    const KoXmlElement & imageElement(KoXml::namedItemNS(element, KoXmlNS::draw, "image"));
    if (imageElement.isNull()) {
        kError(30006) << "svg image element not found";
        return 0;
    }

    if (imageElement.tagName() == "image") {
        kDebug(30006) << "trying to create shapes form svg image";
        QString href = imageElement.attribute("href");
        if (href.isEmpty())
            return 0;

        // check the mimetype
        if (href.startsWith("./")) {
            href.remove(0,2);
        }
        QString mimetype = context.odfLoadingContext().mimeTypeForPath(href);
        kDebug(30006) << mimetype;
        if (mimetype != "image/svg+xml")
            return 0;

        if (!context.odfLoadingContext().store()->open(href))
            return 0;

        KoStoreDevice dev(context.odfLoadingContext().store());
        KoXmlDocument xmlDoc;

        int line, col;
        QString errormessage;

        const bool parsed = xmlDoc.setContent(&dev, &errormessage, &line, &col);

        context.odfLoadingContext().store()->close();

        if (! parsed) {
            kError(30006) << "Error while parsing file: "
            << "at line " << line << " column: " << col
            << " message: " << errormessage << endl;
            return 0;
        }

        SvgParser parser(context.documentResourceManager());

        QList<KoShape*> shapes = parser.parseSvg(xmlDoc.documentElement());
        if (shapes.isEmpty())
            return 0;
        if (shapes.count() == 1)
            return shapes.first();

        KoShapeGroup *svgGroup = new KoShapeGroup;
        KoShapeGroupCommand cmd(svgGroup, shapes);
        cmd.redo();

        return svgGroup;
    }

    return 0;
}