Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 234 insertions, 0 deletions

diff --git a/ksvg/impl/SVGTimeScheduler.cc b/ksvg/impl/SVGTimeScheduler.cc
new file mode 100644
index 00000000..efff77ac
--- /dev/null
+++ b/ksvg/impl/SVGTimeScheduler.cc
@@ -0,0 +1,234 @@
+/*
+    Copyright (C) 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 "KSVGCanvas.h"
+#include "CanvasItem.h"
+#include "SVGShapeImpl.h"
+#include "SVGDocumentImpl.h"
+#include "SVGTimeScheduler.moc"
+
+using namespace KSVG;
+
+SVGTimer::SVGTimer(QObject *scheduler, unsigned int ms, bool singleShot)
+{
+	m_ms = ms;
+	m_singleShot = singleShot;
+	m_timer = new QTimer(scheduler);
+}
+
+SVGTimer::~SVGTimer()
+{
+	delete m_timer;
+}
+
+bool SVGTimer::operator==(const QTimer *timer)
+{
+	return (m_timer == timer);
+}
+
+const QTimer *SVGTimer::qtimer() const
+{
+	return m_timer;
+}
+
+void SVGTimer::start(QObject *receiver, const char *member)
+{
+	QObject::connect(m_timer, SIGNAL(timeout()), receiver, member);
+	m_timer->start(m_ms, m_singleShot);
+}
+
+void SVGTimer::stop()
+{
+	m_timer->stop();
+}
+
+bool SVGTimer::isActive() const
+{
+	return m_timer->isActive();
+}
+
+unsigned int SVGTimer::ms() const
+{
+	return m_ms;
+}
+
+bool SVGTimer::singleShot() const
+{
+	return m_singleShot;
+}
+
+void SVGTimer::notifyAll()
+{
+	if(m_notifyList.isEmpty())
+		return;
+
+	QValueList<SVGElementImpl *> elements;
+	for(unsigned int i = m_notifyList.count();i > 0; i--)
+	{
+		SVGElementImpl *element = m_notifyList[i - 1];
+		if(!element)
+			continue;
+
+		SVGAnimationElementImpl *animation = dynamic_cast<SVGAnimationElementImpl *>(element);
+		if(animation)
+		{
+			animation->handleTimerEvent();
+
+			SVGElementImpl *target = animation->targetElement();
+			if(!elements.contains(target))
+				elements.append(target);
+		}
+	}
+
+	// Optimized update logic (to avoid 4 updates, on the same element)
+	QValueList<SVGElementImpl *>::iterator it2;
+	for(it2 = elements.begin(); it2 != elements.end(); ++it2)
+	{
+		SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(*it2);
+		if(shape && shape->item())
+			shape->item()->update(UPDATE_TRANSFORM);
+	}
+}
+
+void SVGTimer::addNotify(SVGElementImpl *element)
+{
+	m_notifyList.append(element);
+}
+
+void SVGTimer::removeNotify(SVGElementImpl *element)
+{
+	m_notifyList.remove(element);
+	
+	if(m_notifyList.isEmpty())
+		stop();
+}
+
+const unsigned int SVGTimeScheduler::staticTimerInterval = 15; // milliseconds
+
+SVGTimeScheduler::SVGTimeScheduler(SVGDocumentImpl *doc) : QObject(), m_doc(doc)
+{
+	// Create static interval timers but don't start it yet!
+	m_intervalTimer = new SVGTimer(this, staticTimerInterval, false);	
+	m_creationTime.start();
+}
+
+SVGTimeScheduler::~SVGTimeScheduler()
+{
+	// Usually singleShot timers cleanup themselves, after usage
+	SVGTimerList::iterator it;
+	for(it = m_timerList.begin(); it != m_timerList.end(); ++it)
+	{
+		SVGTimer *svgTimer = *it;
+		delete svgTimer;
+	}
+	delete m_intervalTimer;
+}
+
+void SVGTimeScheduler::addTimer(SVGElementImpl *element, unsigned int ms)
+{
+	SVGTimer *svgTimer = new SVGTimer(this, ms, true);
+	svgTimer->addNotify(element);
+	m_timerList.append(svgTimer);
+}
+
+void SVGTimeScheduler::connectIntervalTimer(SVGElementImpl *element)
+{
+	m_intervalTimer->addNotify(element);
+}
+
+void SVGTimeScheduler::disconnectIntervalTimer(SVGElementImpl *element)
+{
+	m_intervalTimer->removeNotify(element);
+}
+
+void SVGTimeScheduler::startAnimations()
+{
+	SVGTimerList::iterator it;
+	for(it = m_timerList.begin(); it != m_timerList.end(); ++it)
+	{
+		SVGTimer *svgTimer = *it;
+		if(svgTimer && !svgTimer->isActive())
+			svgTimer->start(this, SLOT(slotTimerNotify()));
+	}
+}
+
+void SVGTimeScheduler::toggleAnimations()
+{
+	if(m_intervalTimer->isActive())
+		m_intervalTimer->stop();
+	else
+		m_intervalTimer->start(this, SLOT(slotTimerNotify()));
+}
+
+bool SVGTimeScheduler::animationsPaused() const
+{
+	return !m_intervalTimer->isActive();
+}
+
+void SVGTimeScheduler::slotTimerNotify()
+{
+	QTimer *senderTimer = const_cast<QTimer *>(static_cast<const QTimer *>(sender()));
+
+	SVGTimer *svgTimer = 0;
+	SVGTimerList::iterator it;
+	for(it = m_timerList.begin(); it != m_timerList.end(); ++it)
+	{
+		SVGTimer *cur = *it;
+		if(*cur == senderTimer)
+		{
+			svgTimer = cur;
+			break;
+		}
+	}
+
+	if(!svgTimer)
+	{
+		svgTimer = (*m_intervalTimer == senderTimer) ? m_intervalTimer : 0;
+	
+		if(!svgTimer)
+			return;
+	}
+
+	svgTimer->notifyAll();
+
+	// Animations need direct updates
+	if(m_doc->canvas())
+		m_doc->canvas()->update();
+	emit m_doc->finishedRendering();
+
+	if(svgTimer->singleShot())
+	{
+		m_timerList.remove(svgTimer);
+		delete svgTimer;
+	}
+
+	// The singleShot timers of ie. <animate> with begin="3s" are notified
+	// by the previous call, and now all connections to the interval timer
+	// are created and now we just need to fire that timer (Niko)
+	if(svgTimer != m_intervalTimer && !m_intervalTimer->isActive())
+		m_intervalTimer->start(this, SLOT(slotTimerNotify()));
+}
+
+float SVGTimeScheduler::elapsed() const
+{
+	return float(m_creationTime.elapsed()) / 1000.0;
+}
+
+// vim:ts=4:noet