1/*
2 * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB.  If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 */
20
21#include "config.h"
22#include "SVGDocument.h"
23
24#include "EventNames.h"
25#include "ExceptionCode.h"
26#include "FrameView.h"
27#include "RenderView.h"
28#include "SVGElement.h"
29#include "SVGNames.h"
30#include "SVGSVGElement.h"
31#include "SVGViewSpec.h"
32#include "SVGZoomAndPan.h"
33#include "SVGZoomEvent.h"
34
35namespace WebCore {
36
37SVGDocument::SVGDocument(Frame* frame, const URL& url)
38    : Document(frame, url, SVGDocumentClass)
39{
40}
41
42SVGSVGElement* SVGDocument::rootElement() const
43{
44    Element* elem = documentElement();
45    if (elem && elem->hasTagName(SVGNames::svgTag))
46        return toSVGSVGElement(elem);
47
48    return 0;
49}
50
51bool SVGDocument::zoomAndPanEnabled() const
52{
53    if (rootElement()) {
54        if (rootElement()->useCurrentView()) {
55            if (rootElement()->currentView())
56                return rootElement()->currentView()->zoomAndPan() == SVGZoomAndPanMagnify;
57        } else
58            return rootElement()->zoomAndPan() == SVGZoomAndPanMagnify;
59    }
60
61    return false;
62}
63
64void SVGDocument::startPan(const FloatPoint& start)
65{
66    if (rootElement())
67        m_translate = FloatPoint(start.x() - rootElement()->currentTranslate().x(), start.y() - rootElement()->currentTranslate().y());
68}
69
70void SVGDocument::updatePan(const FloatPoint& pos) const
71{
72    if (rootElement()) {
73        rootElement()->setCurrentTranslate(FloatPoint(pos.x() - m_translate.x(), pos.y() - m_translate.y()));
74        if (renderView())
75            renderView()->repaint();
76    }
77}
78
79bool SVGDocument::childShouldCreateRenderer(const Node& child) const
80{
81    if (isSVGSVGElement(child))
82        return toSVGSVGElement(child).isValid();
83    return true;
84}
85
86PassRefPtr<Document> SVGDocument::cloneDocumentWithoutChildren() const
87{
88    return create(nullptr, url());
89}
90
91}
92