Why don't I get an updated list of values via drawShapes

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lottery.cpp

when I hit select drawShapes does not update 54 values

@
#include "lottery.h"
#include <QSet>
#include <QtDebug>
#include <QPainter>

Lottery::Lottery(QWidget *parent)
: QWidget(parent)
{
ui.setupUi(this);
connect( ui.pushButton, SIGNAL(clicked()), this, SLOT(selectClicked()) );
}

Lottery::~Lottery()
{

}
void Lottery::selectClicked()
{
int value;
int M = 53;
int intArray[6];
QSet<int> set;
set.reserve(6);
srand(time(0));
ui.listWidget->addItem(QString("server StartTCPServer"));
do
{
value = (int)( M*(double)rand()/((double)RAND_MAX+(double)1))+1;

 set.insert(value);
} while(set.size()<6);


int j = 0;
QSet<int>::const_iterator i = set.begin();
while (i != set.end()) {
    intArray[j] = *i;
    histo[intArray[j]]++;
    ++i;++j;
}
QString qstring1;
qstring1.setNum(intArray[0]);
ui.lineEdit_1->setText(qstring1);

qstring1.setNum(intArray[1]);
ui.lineEdit_2->setText(qstring1);
 
qstring1.setNum(intArray[2]);
ui.lineEdit_3->setText(qstring1);
  
qstring1.setNum(intArray[3]);
ui.lineEdit_4->setText(qstring1);
   
qstring1.setNum(intArray[4]);
ui.lineEdit_5->setText(qstring1);
    
qstring1.setNum(intArray[5]);
ui.lineEdit_6->setText(qstring1);

QPainter paint( this );
drawShapes(&paint);

}
void Lottery::paintEvent( QPaintEvent* qpe) {
// fout<<"DrawView::paintEvent"<<endl;

QPainter paint( this );
drawShapes(&paint);
qpaintevent = qpe;

}
void Lottery::drawShapes( QPainter *p ) {
setGeometry(100,100,800,800);
p->setPen( Qt::black);
QFont qf;
qf.setStyle(QFont::StyleNormal);
qf.setWeight(QFont::Light);
p->setFont(qf);
QString qstr1;
QString qstr2;
int ix = 300;
int iy = 20;
for(int i = 1; i<54;i++)
{
qstr1.setNum(i);
qstr2.setNum(histo[i]);
p->drawText(ix, iy,"number of "+qstr1+"="+qstr2);
iy+=15;
}

}

@

lottery,h

@

#ifndef LOTTERY_H
#define LOTTERY_H

#include <QtGui/QWidget>
#include "ui_lottery.h"
#include <QMap>
#include <QPaintEvent>
class Lottery : public QWidget
{
Q_OBJECT

public:
Lottery(QWidget *parent = 0);
~Lottery();

private:
Ui::LotteryClass ui;
void paintEvent( QPaintEvent * );
QMap<int,int> histo;
QPaintEvent* qpaintevent;
void drawShapes( QPainter *p );
private slots:
void selectClicked();
};

#endif // LOTTERY_H
@

mlong

How many are you getting?

Your draw loop at line 83 above has:
@
for(int i = 1; i<54;i++)
@

which will only draw 53 items, skipping element 0.

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I get 53 values right out of the starting gate all zero of course

when I hit the select button, the "histogram" values are not updated

with the current lottery values

If I minimize/maximize, the values are updated

drawShapes needs a paintEvent I guess

if you win a lottery using my program, you owe me half...ha!

? Offline

there are 53 values in the lottery for each of 6 positions

not 54...sorry!

1-53

@
/********************************************************************************
** Form generated from reading UI file 'lottery.ui'
**
** Created by: Qt User Interface Compiler version 4.8.1
**
** WARNING! All changes made in this file will be lost when recompiling UI file!
********************************************************************************/

#ifndef UI_LOTTERY_H
#define UI_LOTTERY_H

#include <QtCore/QVariant>
#include <QtGui/QAction>
#include <QtGui/QApplication>
#include <QtGui/QButtonGroup>
#include <QtGui/QHeaderView>
#include <QtGui/QLineEdit>
#include <QtGui/QListWidget>
#include <QtGui/QPushButton>
#include <QtGui/QVBoxLayout>
#include <QtGui/QWidget>

QT_BEGIN_NAMESPACE

class Ui_LotteryClass
{
public:
QPushButton *pushButton;
QPushButton *pushButtonClose;
QWidget *layoutWidget;
QVBoxLayout *verticalLayout;
QLineEdit *lineEdit_1;
QLineEdit *lineEdit_2;
QLineEdit *lineEdit_3;
QLineEdit *lineEdit_4;
QLineEdit *lineEdit_5;
QLineEdit *lineEdit_6;
QListWidget *listWidget;

void setupUi(QWidget *LotteryClass)
{
    if (LotteryClass->objectName().isEmpty())
        LotteryClass->setObjectName(QString::fromUtf8("LotteryClass"));
    LotteryClass->resize(400, 528);
    QFont font;
    font.setBold(true);
    font.setWeight(75);
    LotteryClass->setFont(font);
    LotteryClass->setMouseTracking(false);
    pushButton = new QPushButton(LotteryClass);
    pushButton->setObjectName(QString::fromUtf8("pushButton"));
    pushButton->setGeometry(QRect(70, 230, 83, 30));
    pushButtonClose = new QPushButton(LotteryClass);
    pushButtonClose->setObjectName(QString::fromUtf8("pushButtonClose"));
    pushButtonClose->setGeometry(QRect(70, 290, 83, 30));
    layoutWidget = new QWidget(LotteryClass);
    layoutWidget->setObjectName(QString::fromUtf8("layoutWidget"));
    layoutWidget->setGeometry(QRect(40, 20, 146, 194));
    verticalLayout = new QVBoxLayout(layoutWidget);
    verticalLayout->setSpacing(6);
    verticalLayout->setContentsMargins(11, 11, 11, 11);
    verticalLayout->setObjectName(QString::fromUtf8("verticalLayout"));
    verticalLayout->setContentsMargins(0, 0, 0, 0);
    lineEdit_1 = new QLineEdit(layoutWidget);
    lineEdit_1->setObjectName(QString::fromUtf8("lineEdit_1"));

    verticalLayout->addWidget(lineEdit_1);

    lineEdit_2 = new QLineEdit(layoutWidget);
    lineEdit_2->setObjectName(QString::fromUtf8("lineEdit_2"));

    verticalLayout->addWidget(lineEdit_2);

    lineEdit_3 = new QLineEdit(layoutWidget);
    lineEdit_3->setObjectName(QString::fromUtf8("lineEdit_3"));

    verticalLayout->addWidget(lineEdit_3);

    lineEdit_4 = new QLineEdit(layoutWidget);
    lineEdit_4->setObjectName(QString::fromUtf8("lineEdit_4"));

    verticalLayout->addWidget(lineEdit_4);

    lineEdit_5 = new QLineEdit(layoutWidget);
    lineEdit_5->setObjectName(QString::fromUtf8("lineEdit_5"));

    verticalLayout->addWidget(lineEdit_5);

    lineEdit_6 = new QLineEdit(layoutWidget);
    lineEdit_6->setObjectName(QString::fromUtf8("lineEdit_6"));

    verticalLayout->addWidget(lineEdit_6);

    listWidget = new QListWidget(LotteryClass);
    listWidget->setObjectName(QString::fromUtf8("listWidget"));
    listWidget->setGeometry(QRect(70, 330, 171, 111));

    retranslateUi(LotteryClass);
    QObject::connect(pushButtonClose, SIGNAL(clicked()), LotteryClass, SLOT(close()));

    QMetaObject::connectSlotsByName(LotteryClass);
} // setupUi

void retranslateUi(QWidget *LotteryClass)
{
    LotteryClass->setWindowTitle(QApplication::translate("LotteryClass", "Lottery", 0, QApplication::UnicodeUTF8));
    pushButton->setText(QApplication::translate("LotteryClass", "select", 0, QApplication::UnicodeUTF8));
    pushButtonClose->setText(QApplication::translate("LotteryClass", "Close", 0, QApplication::UnicodeUTF8));
} // retranslateUi

};

namespace Ui {
class LotteryClass: public Ui_LotteryClass {};
} // namespace Ui

QT_END_NAMESPACE

#endif // UI_LOTTERY_H

@

mlong

Instead of doing:
@
QPainter paint( this );
drawShapes(&paint);
@

in your selectClicked() method, use
@
repaint();
@

? Offline

ui_lottery.h
@
<ui version="4.0" >
<class>LotteryClass</class>
<widget class="QWidget" name="LotteryClass" >
<property name="geometry" >
<rect>
<x>0</x>
<y>0</y>
<width>400</width>
<height>528</height>
</rect>
</property>
<property name="font" >
<font>
<weight>75</weight>
<bold>true</bold>
</font>
</property>
<property name="mouseTracking" >
<bool>false</bool>
</property>
<property name="windowTitle" >
<string>Lottery</string>
</property>
<widget class="QPushButton" name="pushButton" >
<property name="geometry" >
<rect>
<x>70</x>
<y>230</y>
<width>83</width>
<height>30</height>
</rect>
</property>
<property name="text" >
<string>select</string>
</property>
</widget>
<widget class="QPushButton" name="pushButtonClose" >
<property name="geometry" >
<rect>
<x>70</x>
<y>290</y>
<width>83</width>
<height>30</height>
</rect>
</property>
<property name="text" >
<string>Close</string>
</property>
</widget>
<widget class="QWidget" name="layoutWidget" >
<property name="geometry" >
<rect>
<x>40</x>
<y>20</y>
<width>146</width>
<height>194</height>
</rect>
</property>
<layout class="QVBoxLayout" name="verticalLayout" >
<item>
<widget class="QLineEdit" name="lineEdit_1" />
</item>
<item>
<widget class="QLineEdit" name="lineEdit_2" />
</item>
<item>
<widget class="QLineEdit" name="lineEdit_3" />
</item>
<item>
<widget class="QLineEdit" name="lineEdit_4" />
</item>
<item>
<widget class="QLineEdit" name="lineEdit_5" />
</item>
<item>
<widget class="QLineEdit" name="lineEdit_6" />
</item>
</layout>
</widget>
<widget class="QListWidget" name="listWidget" >
<property name="geometry" >
<rect>
<x>70</x>
<y>330</y>
<width>171</width>
<height>111</height>
</rect>
</property>
</widget>
</widget>
<layoutdefault spacing="6" margin="11" />
<resources/>
<connections>
<connection>
<sender>pushButtonClose</sender>
<signal>clicked()</signal>
<receiver>LotteryClass</receiver>
<slot>close()</slot>
<hints>
<hint type="sourcelabel" >
<x>111</x>
<y>304</y>
</hint>
<hint type="destinationlabel" >
<x>199</x>
<y>263</y>
</hint>
</hints>
</connection>
</connections>
</ui>
@

? Offline

sorry the range for each lottery entry is 1-53

in each of the 6 positions

Not a lottery player but it is great learning tool

when I click on select, I should get the 53 values in the histogram updated

? Offline

by Jove Olde Beane...think you got it

it works! thanks!

I had tried repaint() but put it in the wrong place