Added entropy collection dialog

git-svn-id: https://svn.code.sf.net/p/keepassx/code/trunk@107 b624d157-de02-0410-bad0-e51aec6abb33

src/lib/WaitAnimationWidget.cpp

@@ -0,0 +1,75 @@
+/***************************************************************************
+ *   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; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   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 <math.h>
+#include <QPainter>
+#include <QRectF>
+#include "WaitAnimationWidget.h"
+
+
+WaitAnimationWidget::WaitAnimationWidget(QWidget* parent):QWidget(parent){
+	speed=60;
+	setRefreshRate(25);
+	CurAngle=0;
+	connect(&timer,SIGNAL(timeout()),this,SLOT(refreshAnimation()));
+	timer.start();
+
+}
+
+void WaitAnimationWidget::setRefreshRate(int fps){
+	DiffAngle=1.0f/((60.0f/(float)speed)*(float)fps);
+	timer.setInterval((1.0f/(float)fps)*1000.0f);
+}
+
+void WaitAnimationWidget::refreshAnimation(){
+	CurAngle+=DiffAngle;
+	if(CurAngle>1.0f)CurAngle-=1.0f;
+	for(int i=0;i<6;i++){
+		float diff=CurAngle-i*0.16666667f;
+		if(diff>0.5f)
+			diff=1.0f-diff;
+		CircSizes[i]=1.0+exp(-10.0f*diff*diff);		
+	}
+	repaint();	
+}
+
+void WaitAnimationWidget::paintEvent(QPaintEvent* event){
+	QPainter painter(this);
+	painter.setRenderHints(QPainter::Antialiasing,true);
+	for(int i=0;i<6;i++){
+		float d=CircSizes[i]*6;
+		QRectF rect(CircPositions[i].x()-d/2,CircPositions[i].y()-d/2,d,d);
+		painter.drawEllipse(rect);	
+		
+	}	
+}
+
+void WaitAnimationWidget::resizeEvent(QResizeEvent* event){
+	float r;
+	if(width()>height())
+		r=height()/2;
+	else
+		r=width()/2;
+	for(int i=0;i<6;i++){
+		CircPositions[i].setX((r-10)*cos(-2.0*3.14159265*(0.16666667*i))+r);
+		CircPositions[i].setY((r-10)*sin(-2.0*3.14159265*(0.16666667*i))+r);		
+	}
+	
+}