Kennwortmanager KeePassX Weiterentwicklung der Version 1
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keepassx1/src/dialogs/CollectEntropyDlg.cpp

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/***************************************************************************
* Copyright (C) 2005-2006 by Tarek Saidi *
* tarek.saidi@arcor.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; version 2 of the License. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <QPainter>
#include <QCursor>
#include "crypto/yarrow.h"
#include "CollectEntropyDlg.h"
CollectEntropyDlg::CollectEntropyDlg(QWidget* parent):QDialog(parent){
setupUi(this);
resize(layout()->closestAcceptableSize(this,QSize(0,0)));
setMinimumSize(size());
setMaximumSize(size());
createBanner(&BannerPixmap,getPixmap("dice"),tr("Entropy Collection"),width());
KeyEntropyBuffer=new unsigned char[105];
MouseEntropyBuffer=new quint16[210];
KeyCounter=0;
MouseCounter=0;
QTimer* timer=new QTimer(this);
connect(timer,SIGNAL(timeout()),this,SLOT(trackMousePos()));
timer->setInterval(50);
timer->start();
ReseedDone=false;
}
CollectEntropyDlg::~CollectEntropyDlg(){
delete [] KeyEntropyBuffer;
delete [] MouseEntropyBuffer;
}
void CollectEntropyDlg::paintEvent(QPaintEvent *event){
QDialog::paintEvent(event);
QPainter painter(this);
painter.setClipRegion(event->region());
painter.drawPixmap(QPoint(0,0),BannerPixmap);
}
void CollectEntropyDlg::trackMousePos(){
QPoint p=QCursor::pos();
if(LastPos-p==QPoint(0,0))return;
LastPos=p;
if(MouseCounter==105 || ReseedDone)return;
MouseEntropyBuffer[2*MouseCounter]=p.x();
MouseEntropyBuffer[2*MouseCounter+1]=p.y();
MouseCounter++;
updateProgress();
}
void CollectEntropyDlg::keyReleaseEvent(QKeyEvent* event ){
QDialog::keyReleaseEvent(event);
if(KeyCounter==105 || ReseedDone)return;
KeyEntropyBuffer[KeyCounter]=event->key();
KeyCounter++;
updateProgress();
}
void CollectEntropyDlg::updateProgress(){
if(4*KeyCounter+4*MouseCounter>=420){
progressBar->setValue(420);
ReseedDone=true;
reseedStrongPool((quint8*)MouseEntropyBuffer,4*MouseCounter,KeyEntropyBuffer,KeyCounter);
Animation->stop();
stackedWidget->setCurrentIndex(1);
}
else
progressBar->setValue(4*KeyCounter+4*MouseCounter);
}
void CollectEntropyDlg::showEvent(QShowEvent* event){
if(!event->spontaneous()){
Animation->start();
}
}