summaryrefslogtreecommitdiffstats
path: root/ksvg/impl/SVGLocatableImpl.cpp
blob: 1bf17fb65e40a7e79532a4f882441a2464a18c41 (plain)
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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
/*
    Copyright (C) 2001-2003 KSVG Team
    This file is part of the KDE project

    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 <kdebug.h>

#include "SVGRectImpl.h"
#include "SVGShapeImpl.h"
#include "SVGContainerImpl.h"
#include "SVGMatrixImpl.h"
#include "SVGElementImpl.h"
#include "SVGLocatableImpl.h"
#include "SVGSVGElementImpl.h"
#include "SVGDocumentImpl.h"

using namespace KSVG;

#include "SVGLocatableImpl.lut.h"
#include "ksvg_scriptinterpreter.h"
#include "ksvg_bridge.h"

SVGLocatableImpl::SVGLocatableImpl()
{
	m_nearestViewportElement = 0;
	m_farthestViewportElement = 0;
	m_cachedScreenCTM = SVGSVGElementImpl::createSVGMatrix();
	m_cachedScreenCTMIsValid = false;
}

SVGLocatableImpl::~SVGLocatableImpl()
{
	if(m_nearestViewportElement)
		m_nearestViewportElement->deref();
	if(m_farthestViewportElement)
		m_farthestViewportElement->deref();
	if(m_cachedScreenCTM)
		m_cachedScreenCTM->deref();
}

SVGRectImpl *SVGLocatableImpl::getBBox()
{
	SVGRectImpl *ret = SVGSVGElementImpl::createSVGRect();
	return ret;
}

SVGMatrixImpl *SVGLocatableImpl::getCTM()
{
	SVGMatrixImpl *ret = SVGSVGElementImpl::createSVGMatrix();
	return ret;
}

SVGMatrixImpl *SVGLocatableImpl::getScreenCTM()
{
	SVGMatrixImpl *ret = SVGSVGElementImpl::createSVGMatrix();
	ret->copy(m_cachedScreenCTM);

	return ret;
}

SVGMatrixImpl *SVGLocatableImpl::getTransformToElement(SVGElementImpl *)
{
	SVGMatrixImpl *ret = SVGSVGElementImpl::createSVGMatrix();
	return ret;
}

void SVGLocatableImpl::updateCachedScreenCTM(const SVGMatrixImpl *parentScreenCTM)
{
	m_cachedScreenCTM->copy(parentScreenCTM);

	const SVGMatrixImpl *local = localMatrix();

	if(local)
		m_cachedScreenCTM->multiply(local);
	m_cachedScreenCTMIsValid = true;

	// Notify the element
	onScreenCTMUpdated();

	SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(this);

	if(shape)
	{
		// TODO: Update due to matrix animations
		//if(shape->item())
		//	shape->item()->update(updateReason);

		SVGElementImpl *element = dynamic_cast<SVGElementImpl *>(this);

		DOM::Node node = element->firstChild();
		for(; !node.isNull(); node = node.nextSibling())
		{
			SVGElementImpl *child = element->ownerDoc()->getElementFromHandle(node.handle());
			SVGLocatableImpl *locatable = dynamic_cast<SVGLocatableImpl *>(child);

			if(child && locatable)
				locatable->updateCachedScreenCTM(m_cachedScreenCTM);
		}
	}
}

void SVGLocatableImpl::checkCachedScreenCTM(const SVGMatrixImpl *parentScreenCTM)
{
	if(m_cachedScreenCTMIsValid)
	{
		SVGElementImpl *element = dynamic_cast<SVGElementImpl *>(this);
		SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(this);

		if(shape)
		{
			DOM::Node node = element->firstChild();
			for(; !node.isNull(); node = node.nextSibling())
			{
				SVGElementImpl *child = element->ownerDoc()->getElementFromHandle(node.handle());
				SVGLocatableImpl *locatable = dynamic_cast<SVGLocatableImpl *>(child);

				if(child && locatable)
					locatable->checkCachedScreenCTM(m_cachedScreenCTM);
			}
		}
	}
	else
		updateCachedScreenCTM(parentScreenCTM);
}

// Ecma stuff

/*
@namespace KSVG
@begin SVGLocatableImpl::s_hashTable 3
 nearestViewportElement		SVGLocatableImpl::NearestViewportElement	DontDelete
 farthestViewportElement	SVGLocatableImpl::FarthestViewportElement	DontDelete
@end
@namespace KSVG
@begin SVGLocatableImplProto::s_hashTable 5
 getBBox						SVGLocatableImpl::GetBBox						DontDelete|Function 0
 getCTM							SVGLocatableImpl::GetCTM						DontDelete|Function 0
 getScreenCTM					SVGLocatableImpl::GetScreenCTM					DontDelete|Function 0
 getTransformToElement			SVGLocatableImpl::GetTransformToElement			DontDelete|Function 1
@end
*/

KSVG_IMPLEMENT_PROTOTYPE("SVGLocatable", SVGLocatableImplProto, SVGLocatableImplProtoFunc)

Value SVGLocatableImpl::getValueProperty(ExecState *exec, int token) const
{
	switch(token)
	{
		case NearestViewportElement:
			return nearestViewportElement() ? nearestViewportElement()->cache(exec) : Undefined();
		case FarthestViewportElement:
			return farthestViewportElement() ? farthestViewportElement()->cache(exec) : Undefined();
		default:
			kdWarning() << "Unhandled token in " << k_funcinfo << " : " << token << endl;
			return Undefined();
	}
}

Value SVGLocatableImplProtoFunc::call(ExecState *exec, Object &thisObj, const List &args)
{
	KSVG_CHECK_THIS(SVGLocatableImpl)

	switch(id)
	{
		case SVGLocatableImpl::GetBBox:
		{
			SVGContainerImpl *container = dynamic_cast<SVGContainerImpl *>(obj);
			if(container)
				return container->getBBox()->cache(exec);
			else
			{
				SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(obj);
				if(shape)
					return shape->getBBox()->cache(exec);
				else
					return obj->getBBox()->cache(exec);
			}
		}
		case SVGLocatableImpl::GetCTM:
			return obj->getCTM()->cache(exec);
		case SVGLocatableImpl::GetScreenCTM:
			return obj->getScreenCTM()->cache(exec);
		case SVGLocatableImpl::GetTransformToElement:
			return obj->getTransformToElement(static_cast<KSVGBridge<SVGElementImpl> *>(args[0].imp())->impl())->cache(exec);
		default:
			kdWarning() << "Unhandled function id in " << k_funcinfo << " : " << id << endl;
			break;
	}

	return Undefined();
}