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/***************************************************************************
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* Copyright (C) 2005-2006 by Tarek Saidi *
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* tarek.saidi@arcor.de *
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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 General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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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 General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#include <math.h>
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#include <QPainter>
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#include <QRectF>
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#include "PwmConfig.h"
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#include "main.h"
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#include "WaitAnimationWidget.h"
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WaitAnimationWidget::WaitAnimationWidget(QWidget* parent):QWidget(parent){
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speed=60;
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setRefreshRate(25);
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CurAngle=0;
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for(int i=0;i<6;i++){
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float diff=CurAngle-i*0.16666667f;
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if(diff>0.5f)
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diff=1.0f-diff;
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if(diff<-0.5f)
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diff=1.0f+diff;
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CircSizes[i]=1.0+exp(-14.0f*diff*diff);
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}
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connect(&timer,SIGNAL(timeout()),this,SLOT(refreshAnimation()));
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}
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WaitAnimationWidget::~WaitAnimationWidget(){
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timer.stop();
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}
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void WaitAnimationWidget::start(){
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timer.start();
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}
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void WaitAnimationWidget::stop(){
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timer.stop();
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repaint();
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}
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void WaitAnimationWidget::setRefreshRate(int fps){
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DiffAngle=1.0f/((60.0f/(float)speed)*(float)fps);
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timer.setInterval((1.0f/(float)fps)*1000.0f);
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}
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void WaitAnimationWidget::refreshAnimation(){
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CurAngle+=DiffAngle;
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if(CurAngle>1.0f)CurAngle-=1.0f;
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for(int i=0;i<6;i++){
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float diff=CurAngle-i*0.16666667f;
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if(diff>0.5f)
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diff=1.0f-diff;
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if(diff<-0.5f)
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diff=1.0f+diff;
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CircSizes[i]=1.0+exp(-14.0f*diff*diff);
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}
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repaint();
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}
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void WaitAnimationWidget::paintEvent(QPaintEvent* event){
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if(timer.isActive()){
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QPainter painter(this);
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painter.setRenderHints(QPainter::Antialiasing,true);
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painter.setBrush(config.BannerTextColor);
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painter.setPen(config.BannerTextColor);
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for(int i=0;i<6;i++){
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float d=CircSizes[i]*5.0;
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QRectF rect(CircPositions[i].x()-d/2,CircPositions[i].y()-d/2,d,d);
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painter.drawEllipse(rect);
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}
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}
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}
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void WaitAnimationWidget::resizeEvent(QResizeEvent* event){
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float r;
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if(width()>height())
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r=height()/2;
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else
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r=width()/2;
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for(int i=0;i<6;i++){
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CircPositions[i].setX((r-10)*cos(-2.0*3.14159265*(0.16666667*i))+r);
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CircPositions[i].setY((r-10)*sin(-2.0*3.14159265*(0.16666667*i))+r);
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}
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}
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