author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 04 May 2010 12:39:35 +0300 | |
changeset 0 | 1450b09d0cfd |
child 3 | 0954f5dd2cd0 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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#include "qstmstateengine.h" |
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#include "qstmuievent.h" |
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#include "qstmfilelogger.h" |
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using namespace qstmUiEventEngine; |
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QStm_UiEventSender::QStm_UiEventSender() |
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{ |
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m_loggingenabled = false ; |
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for (int i = 0; i < qstmUiEventEngine::KMaxNumberOfPointers; i++) |
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{ |
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m_events[i] = NULL ; |
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} |
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} |
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QStm_UiEventSender::~QStm_UiEventSender() |
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{ |
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// remove the possible events from the buffers if release was missed |
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for (int i = 0; i < qstmUiEventEngine::KMaxNumberOfPointers; i++) |
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{ |
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if (m_events[i] != NULL) delete m_events[i] ; |
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} |
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m_observers.clear(); |
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} |
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|
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/*! |
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* Add new UI event to the list or send it directly to the observers |
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* depending on the m_directsending flag. |
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* \param aUiEvent the new UI event to be sent to the observers. |
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*/ |
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int QStm_UiEventSender::addEvent(QStm_UiEvent* uiEvent) |
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{ |
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int pointerIndex = uiEvent->index() ; |
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// Store the new UI event. Check what kind of event it is and compress the set of events |
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// stored so far if possible |
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compressStack(uiEvent) ; |
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uiEvent->setPrevious(m_events[pointerIndex]) ; |
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m_events[pointerIndex] = uiEvent ; // Store the new event |
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// TESTING: logging the speed calculations |
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if (m_loggingenabled) |
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{ |
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uiEvent->logSpeed() ; |
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} |
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emitEvent(*uiEvent) ; |
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if (m_loggingenabled) |
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{ |
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LOGARG("Sent event: %s: (ptr %d) (%d,%d)", qstmUiEventEngine::event_name(uiEvent->code()), pointerIndex, |
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uiEvent->currentXY().x(), uiEvent->currentXY().y()); |
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} |
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// If this was release event, then the chain can be removed |
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if (uiEvent->code() == qstmUiEventEngine::ERelease) |
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{ |
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delete uiEvent; // This will delete the whole chain |
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m_events[pointerIndex] = NULL ; |
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} |
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return 0; |
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} |
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/*! |
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* Call each observer with the event |
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*/ |
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void QStm_UiEventSender::emitEvent(const QStm_UiEvent& event) |
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{ |
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int count = m_observers.count(); |
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for (int i = 0; i < count; i++) |
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{ |
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m_observers[i]->handleUiEvent(event); |
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} |
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} |
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|
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/*! |
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* Add a new observer. Note that current implementation is very rude: |
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* max 5 observers in a simple array. |
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*/ |
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bool QStm_UiEventSender::addObserver(QStm_UiEventObserverIf* observer ) |
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{ |
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m_observers.append(observer) ; |
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return true ; |
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} |
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// Check if the parameter refers to one of our observers |
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bool QStm_UiEventSender::isObserver(void* aObserver ) |
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{ |
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QObject* pccToCheck = (QObject*) aObserver ; |
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int count = m_observers.count(); |
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for (int i = 0; i < count; i++) |
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106 |
{ |
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107 |
try |
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108 |
{ |
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QObject* pcc = dynamic_cast<QObject*>(m_observers[i]) ; |
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if (pcc == pccToCheck) |
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return true ; |
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} |
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113 |
catch(...) |
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114 |
{ |
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115 |
|
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116 |
} |
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} |
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return false ; // Could not find observer |
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119 |
} |
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120 |
|
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121 |
/* |
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* remove observer from list |
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*/ |
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bool QStm_UiEventSender::removeObserver(QStm_UiEventObserverIf* observer ) |
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125 |
{ |
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int i = m_observers.indexOf(observer) ; |
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if (i != -1) |
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128 |
{ |
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m_observers.removeAt(i) ; |
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return true ; |
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131 |
|
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132 |
} |
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return false ; // Could not find observer |
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134 |
} |
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135 |
|
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136 |
|
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void QStm_UiEventSender::compressStack(QStm_UiEvent* uiEvent) |
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138 |
{ |
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int pointerIndex = uiEvent->index() ; |
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QStm_UiEvent*& top = m_events[pointerIndex] ; |
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141 |
if(!top) |
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142 |
{ |
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return; |
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144 |
} |
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if (uiEvent->code() == qstmUiEventEngine::EHold) |
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146 |
{ |
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// assumption: in case of hold, we can discard all previous messages |
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delete top ; |
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top = NULL ; |
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150 |
} |
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151 |
else |
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152 |
{ |
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// Check if there would too many moves |
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QStm_UiEvent* next = dynamic_cast<QStm_UiEvent*>(top->previousEvent()) ; |
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if (next != 0 && next->code() == qstmUiEventEngine::EMove) |
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156 |
{ |
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// leave only the topmost to the stack |
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top->setPrevious(0) ; |
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delete next ; |
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} |
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} |
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} |
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163 |