qtmobileextensions/examples/keycaptureex/mybutton.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 04 Oct 2010 01:32:41 +0300
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permissions -rw-r--r--
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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, version 2.1 of the License.
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* 
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program.  If not, 
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* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".
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*
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* Description:
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*
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*/
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#ifndef MYKEY_H_
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#define MYKEY_H_
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#include <QPushButton>
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#include <QPlainTextEdit>
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#include <QEvent>
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#include <QKeyEvent>
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#include <QMap>
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class MyButton : public QPushButton 
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{
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    Q_OBJECT
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public:
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    MyButton(QPlainTextEdit *logger, QWidget *parent = 0) : QPushButton(QString("focus here"), parent)
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    {
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        justLogger = logger;
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        keyLabels.insert(Qt::Key_VolumeUp, "Volume Up");        
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        keyLabels.insert(Qt::Key_VolumeDown, "Volume Down");
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        keyLabels.insert(Qt::Key_Hangup, "Hangup");        
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        keyLabels.insert(Qt::Key_Play, "Play");        
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        keyLabels.insert(Qt::Key_MediaNext, "Media Next");        
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        keyLabels.insert(Qt::Key_MediaPrevious, "Media Previous");        
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        keyLabels.insert(Qt::Key_Forward, "Forward");        
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        keyLabels.insert(Qt::Key_Back, "Back");        
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    }
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    ~MyButton() 
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    {
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    }
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    /*bool event(QEvent *event)
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    {
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        if (justLogger) {
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            if (event->type() != QEvent::KeyPress) {
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//                QString keyName = mapNaturalName((dynamic_cast<QKeyEvent*>event)->key());
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//                justLogger->appendPlainText(QString("P> %1").arg(keyName));
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                justLogger->appendPlainText(QString("P> %1").arg(static_cast<QKeyEvent*>(event)->key()));
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            }
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            if (event->type() != QEvent::KeyRelease) {
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//                QString keyName = mapNaturalName((dynamic_cast<QKeyEvent*>event)->key());
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//                justLogger->appendPlainText(QString("r> %1").arg(keyName));
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                justLogger->appendPlainText(QString("R> %1").arg(static_cast<QKeyEvent*>(event)->key()));
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            }
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        }
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        return QPushButton::event(event);
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    }*/
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    void keyPressEvent(QKeyEvent *e)
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    {
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        QString keyName = mapNaturalName(static_cast<Qt::Key>(e->key()));
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        addTextLine(QString("P> %1").arg(keyName));
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    }
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    void keyReleaseEvent(QKeyEvent *e)
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    {
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        QString keyName = mapNaturalName(static_cast<Qt::Key>(e->key()));
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        addTextLine(QString("R> %1").arg(keyName));
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    }
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    void addTextLine(QString aText)
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    {
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        if ( !aText.endsWith("\n"))
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            aText = aText + "\n";
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        QString msg = justLogger->toPlainText();
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        msg = aText + msg;
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        justLogger->setPlainText(msg);
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    }
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private:
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    QString mapNaturalName(Qt::Key key) {
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        QString name = keyLabels[key];
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        if (name.isEmpty()) {
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            name = QString("0x%1").arg(static_cast<int>(key), 0, 16);
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        }
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        return name;
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    }
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private:
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    // not own
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    QPlainTextEdit *justLogger;
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    QMap<Qt::Key, QString> keyLabels;
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};
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#endif /* MYKEY_H_ */