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#if ENABLE(SVG)
23#include "SVGDocument.h"
24
25#include "EventNames.h"
26#include "ExceptionCode.h"
27#include "FrameView.h"
28#include "RenderView.h"
29#include "SVGElement.h"
30#include "SVGNames.h"
31#include "SVGSVGElement.h"
32#include "SVGViewSpec.h"
33#include "SVGZoomAndPan.h"
34#include "SVGZoomEvent.h"
35
36namespace WebCore {
37
38SVGDocument::SVGDocument(Frame* frame, const KURL& url)
39    : Document(frame, url, false, false)
40{
41}
42
43SVGSVGElement* SVGDocument::rootElement() const
44{
45    Element* elem = documentElement();
46    if (elem && elem->hasTagName(SVGNames::svgTag))
47        return static_cast<SVGSVGElement*>(elem);
48
49    return 0;
50}
51
52void SVGDocument::dispatchZoomEvent(float prevScale, float newScale)
53{
54    ExceptionCode ec = 0;
55    RefPtr<SVGZoomEvent> event = static_pointer_cast<SVGZoomEvent>(createEvent("SVGZoomEvents", ec));
56    event->initEvent(eventNames().zoomEvent, true, false);
57    event->setPreviousScale(prevScale);
58    event->setNewScale(newScale);
59    rootElement()->dispatchEvent(event.release(), ec);
60}
61
62void SVGDocument::dispatchScrollEvent()
63{
64    ExceptionCode ec = 0;
65    RefPtr<Event> event = createEvent("SVGEvents", ec);
66    event->initEvent(eventNames().scrollEvent, true, false);
67    rootElement()->dispatchEvent(event.release(), ec);
68}
69
70bool SVGDocument::zoomAndPanEnabled() const
71{
72    if (rootElement()) {
73        if (rootElement()->useCurrentView()) {
74            if (rootElement()->currentView())
75                return rootElement()->currentView()->zoomAndPan() == SVGZoomAndPan::SVG_ZOOMANDPAN_MAGNIFY;
76        } else
77            return rootElement()->zoomAndPan() == SVGZoomAndPan::SVG_ZOOMANDPAN_MAGNIFY;
78    }
79
80    return false;
81}
82
83void SVGDocument::startPan(const FloatPoint& start)
84{
85    if (rootElement())
86        m_translate = FloatPoint(start.x() - rootElement()->currentTranslate().x(), rootElement()->currentTranslate().y() + start.y());
87}
88
89void SVGDocument::updatePan(const FloatPoint& pos) const
90{
91    if (rootElement()) {
92        rootElement()->setCurrentTranslate(FloatPoint(pos.x() - m_translate.x(), m_translate.y() - pos.y()));
93        if (renderer())
94            renderer()->repaint();
95    }
96}
97
98bool SVGDocument::childShouldCreateRenderer(Node* node) const
99{
100    if (node->hasTagName(SVGNames::svgTag))
101        return static_cast<SVGSVGElement*>(node)->isValid();
102    return true;
103}
104
105}
106
107// vim:ts=4:noet
108#endif // ENABLE(SVG)
109