summaryrefslogtreecommitdiffstats
path: root/ksvg/impl/SVGUseElementImpl.cc
blob: b7f36be51cbe57215d539737c577cacb74295af3 (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
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
/*
    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 <tqstring.h>

#include "KSVGLoader.h"
#include "KSVGCanvas.h"

#include "SVGRectImpl.h"
#include "SVGEventImpl.h"
#include "SVGHelperImpl.h"
#include "SVGMatrixImpl.h"
#include "SVGDocumentImpl.h"
#include "SVGTransformImpl.h"
#include "SVGSVGElementImpl.h"
#include "SVGUseElementImpl.h"
#include "SVGSymbolElementImpl.h"
#include "SVGTransformListImpl.h"
#include "SVGAnimatedStringImpl.h"
#include "SVGAnimatedLengthImpl.h"
#include "SVGElementInstanceImpl.h"
#include "SVGAnimatedTransformListImpl.h"

using namespace KSVG;

#include "SVGUseElementImpl.lut.h"
#include "ksvg_bridge.h"
#include "ksvg_ecma.h"

SVGUseElementImpl::SVGUseElementImpl(DOM::ElementImpl *impl) : SVGShapeImpl(impl), SVGURIReferenceImpl(), SVGTestsImpl(), SVGLangSpaceImpl(), SVGExternalResourcesRequiredImpl(), SVGStylableImpl(this), SVGTransformableImpl()
{
	KSVG_EMPTY_FLAGS

	m_x = new SVGAnimatedLengthImpl();
	m_x->ref();

	m_y = new SVGAnimatedLengthImpl();
	m_y->ref();

	m_width = new SVGAnimatedLengthImpl();
	m_width->ref();

	m_height = new SVGAnimatedLengthImpl();
	m_height->ref();

	m_instanceRoot = 0;
}

SVGUseElementImpl::~SVGUseElementImpl()
{
	if(m_x)
		m_x->deref();
	if(m_y)
		m_y->deref();
	if(m_width)
		m_width->deref();
	if(m_height)
		m_height->deref();
	if(m_instanceRoot)
		m_instanceRoot->deref();
}

SVGAnimatedLengthImpl *SVGUseElementImpl::x() const
{
	return m_x;
}

SVGAnimatedLengthImpl *SVGUseElementImpl::y() const
{
	return m_y;
}

SVGAnimatedLengthImpl *SVGUseElementImpl::width() const
{
	return m_width;
}

SVGAnimatedLengthImpl *SVGUseElementImpl::height() const
{
	return m_height;
}

// Ecma stuff

/*
@namespace KSVG
@begin SVGUseElementImpl::s_hashTable 11
 x						SVGUseElementImpl::X					DontDelete|ReadOnly
 y						SVGUseElementImpl::Y					DontDelete|ReadOnly
 width					SVGUseElementImpl::Width				DontDelete|ReadOnly
 height					SVGUseElementImpl::Height				DontDelete|ReadOnly
 href					SVGUseElementImpl::Href					DontDelete|ReadOnly
 instanceRoot			SVGUseElementImpl::InstanceRoot			DontDelete|ReadOnly
 animatedInstanceRoot	SVGUseElementImpl::AnimatedInstanceRoot	DontDelete|ReadOnly
@end
*/

Value SVGUseElementImpl::getValueProperty(ExecState *exec, int token) const
{
	KSVG_CHECK_ATTRIBUTE

	switch(token)
	{
		case X:
			if(!attributeMode)
				return m_x->cache(exec);
			else
				return Number(m_x->baseVal()->value());
		case Y:
			if(!attributeMode)
				return m_y->cache(exec);
			else
				return Number(m_y->baseVal()->value());
		case Width:
			if(!attributeMode)
				return m_width->cache(exec);
			else
				return Number(m_width->baseVal()->value());
		case Height:
			if(!attributeMode)
				return m_height->cache(exec);
			else
				return Number(m_height->baseVal()->value());
		default:
			kdWarning() << "Unhandled token in " << k_funcinfo << " : " << token << endl;
			return Undefined();
	}
}

void SVGUseElementImpl::putValueProperty(ExecState *exec, int token, const Value &value, int attr)
{
	// This class has just ReadOnly properties, only with the Internal flag set
	// it's allowed to modify those.
	if(!(attr & KJS::Internal))
		return;

	switch(token)
	{
		case X:
			x()->baseVal()->setValue(value.toNumber(exec));
			break;
		case Y:
			y()->baseVal()->setValue(value.toNumber(exec));
			break;
		case Width:
			width()->baseVal()->setValue(value.toNumber(exec));
			break;
		case Height:
			height()->baseVal()->setValue(value.toNumber(exec));
			break;
		case Href:
		{
			TQString url = value.toString(exec).qstring();
			href()->setBaseVal(SVGURIReferenceImpl::getTarget(url));
			break;
		}
		default:
			kdWarning() << "Unhandled token in " << k_funcinfo << " : " << token << endl;
	}
}

SVGRectImpl *SVGUseElementImpl::getBBox()
{
	if(m_instanceRoot)
	{
		SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(m_instanceRoot->correspondingElement());
		if(KSVG_TOKEN_NOT_PARSED(Width) && KSVG_TOKEN_NOT_PARSED(Height) && shape)
			return shape->getBBox();
	}

	SVGRectImpl *ret = new SVGRectImpl();
	ret->ref();
	ret->setX(m_x->baseVal()->value());
	ret->setY(m_y->baseVal()->value());
	ret->setWidth(m_width->baseVal()->value());
	ret->setHeight(m_height->baseVal()->value());
	return ret;
}

SVGElementInstanceImpl *SVGUseElementImpl::instanceRoot() const
{
	return m_instanceRoot;
}

SVGElementInstanceImpl *SVGUseElementImpl::animatedInstanceRoot() const
{
	return m_animatedInstanceRoot;
}

void SVGUseElementImpl::createItem(KSVGCanvas *c)
{
	if(!m_instanceRoot)
	{
		// ownerSVGElement()->getElementById() is wrong here.
		// It could reference elements from other documents when using getURL (Niko)
		TQString filename, id;
		DOM::DOMString url = getAttribute("href");
		if(!SVGURIReferenceImpl::parseURIReference(url.string(), filename, id))
			return;
		
		SVGElementImpl *orig;
		if(!filename.isEmpty())
		{
			KURL fragmentUrl(ownerDoc()->baseUrl(), url.string());

			id = fragmentUrl.ref();
			fragmentUrl.setRef(TQString());

			orig = KSVGLoader::getSVGFragment(fragmentUrl, ownerDoc(), id);
		}
		else
		{
			orig = ownerDoc()->getElementByIdRecursive(ownerSVGElement(), href()->baseVal());

			if(orig == 0)
			{
				// The document will try to create this item again once the parsing has finished.
				ownerDoc()->addForwardReferencingUseElement(this);
			}
		}
		
		if(orig == 0)
			return;

		setReferencedElement(orig);

		// Create a parent, a <g>
		SVGElementImpl *parent = 0;
		DOM::Element impl = static_cast<DOM::Document *>(ownerDoc())->createElement("g");
		parent = SVGDocumentImpl::createElement("g", impl, ownerDoc());
		SVGElementImpl *clone = orig->cloneNode(true);

		// Apply the use-correction
		TQString trans;
		trans += " translate(";
		trans += TQString::number(x()->baseVal()->value());
		trans += " ";
		trans += TQString::number(y()->baseVal()->value());
		trans += ")";

		// Apply the transform attribute and render the element
		parent->setAttributeInternal("transform", trans);
		parent->setAttribute("transform", trans);

		// Apply width/height if symbol
		if(dynamic_cast<SVGSymbolElementImpl *>(clone))
		{
			DOM::Element impl = static_cast<DOM::Document *>(ownerDoc())->createElement("svg");
			SVGElementImpl *symbolSvg = SVGDocumentImpl::createElement("svg", impl, ownerDoc());

			SVGHelperImpl::copyAttributes(orig, symbolSvg);
			
			symbolSvg->setAttribute("width", getAttribute("width"));
			symbolSvg->setAttributeInternal("width", getAttribute("width"));
			symbolSvg->setAttribute("height", getAttribute("height"));
			symbolSvg->setAttributeInternal("height", getAttribute("height"));
			DOM::Node node = clone->firstChild();
			for(; !node.isNull(); node = clone->firstChild())
				symbolSvg->appendChild(node);
				
			clone = symbolSvg;
		}
		else if(dynamic_cast<SVGSVGElementImpl *>(clone))
		{
			if(!getAttribute("width").isEmpty())
			{
				clone->setAttribute("width", getAttribute("width"));
				clone->setAttributeInternal("width", getAttribute("width"));
			}

			if(!getAttribute("height").isEmpty())
			{
				clone->setAttribute("height", getAttribute("height"));
				clone->setAttributeInternal("height", getAttribute("height"));
			}
		}

		appendChild(*parent);
		parent->appendChild(*clone);

		setupSubtree(parent, ownerSVGElement(), viewportElement());

		m_instanceRoot->setCorrespondingElement(clone);

		dynamic_cast<SVGLocatableImpl *>(parent)->updateCachedScreenCTM(screenCTM());

		// Redirect local ecma event handlers to the correspondingElement
		TQPtrListIterator<SVGRegisteredEventListener> it(eventListeners());
		SVGRegisteredEventListener *eventListener;
		while((eventListener = it.current()) != 0)
		{
			++it;
			clone->setEventListener(eventListener->id, eventListener->listener);
		}
	}
	
	if(m_instanceRoot)
	{
		SVGElementImpl *element = m_instanceRoot->correspondingElement();
		element->createItem(c);
	}
}

void SVGUseElementImpl::removeItem(KSVGCanvas *c)
{
	if(m_instanceRoot)
	{
		SVGElementImpl *element = m_instanceRoot->correspondingElement();
		element->removeItem(c);
	}
}

void SVGUseElementImpl::setupSubtree(SVGElementImpl *element, SVGSVGElementImpl *ownerSVG, SVGElementImpl *viewport)
{
	element->setOwnerSVGElement(ownerSVG);
	element->setViewportElement(viewport);
	element->setAttributes();

	SVGSVGElementImpl *thisSVG = dynamic_cast<SVGSVGElementImpl *>(element);

	if(thisSVG != 0)
	{
		ownerSVG = thisSVG;
		viewport = element;
	}

	DOM::Node child = element->firstChild();
	for(; !child.isNull(); child = child.nextSibling())
	{
		SVGElementImpl *childElement = ownerDoc()->getElementFromHandle(child.handle());
		if(childElement != 0)
			setupSubtree(childElement, ownerSVG, viewport);
	}
}

void SVGUseElementImpl::setReferencedElement(SVGElementImpl *referenced)
{
	if(!referenced)
		return;
	
	if(!m_instanceRoot)
	{
		m_instanceRoot = new SVGElementInstanceImpl();
		m_instanceRoot->ref();
	}

	m_instanceRoot->setCorrespondingElement(referenced);
}

void SVGUseElementImpl::update(CanvasItemUpdate reason, int param1, int param2)
{
	if(m_instanceRoot)
	{
		SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(m_instanceRoot->correspondingElement());
		if(shape)
			shape->update(reason, param1, param2);
	}
}

void SVGUseElementImpl::invalidate(KSVGCanvas *c, bool recalc)
{
	if(m_instanceRoot)
	{
		SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(m_instanceRoot->correspondingElement());
		if(shape)
			shape->invalidate(c, recalc);
	}
}

void SVGUseElementImpl::setReferenced(bool referenced)
{
	if(m_instanceRoot)
	{
		SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(m_instanceRoot->correspondingElement());
		if(shape)
			shape->setReferenced(referenced);
	}
}

void SVGUseElementImpl::draw()
{
	if(m_instanceRoot)
	{
		SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(m_instanceRoot->correspondingElement());
		if(shape)
			shape->draw();
	}
}