Цитата(Andrewshkovskii @ 9.12.2009, 15:17)

   //обнулим матрицу
    for (int i=0;i<30;++i)
         for(int j=0;j<30;++j)
             matrix[i][j]=0;

memset(matrix, 0, sizeof(matrix));

    for(int i=0;i<diffVec.size();++i)
    {
        bufstr.replace(QString("%1"),diffVec[i].first);
        bufstr.replace(QString("%2"),QString::number(diffVec[i].second));
        lst << bufstr;
        bufstr="Думаю, %1 на %2%";
    }

//resultModel.removeRows(0,resultModel.rowCount()); это лишнее, прошлая модель и так затрется сама
...
QStringList lst;
    for(int i=0;i<diffVec.size();++i)
    {
        lst << QString("Думаю, %0 на %1%").arg(diffVec[i].first).arg(diffVec[i].second);
    }

#include <QtCore/QtGlobal>
#include <QtCore/QtDebug>
#include <QtGui/QPainter>
#include <QtGui/QPixmap>
#include <QtGui/QApplication>

int main( int argc, char *argv[] )
{
    QApplication app(argc, argv);
#if 1
    QPixmap pix( 100, 100 );
#else
    QPixmap pix;
#endif
    QPainter p( &pix );
    p.fillRect( QRect( 0, 0, pix.size().width(), pix.size().height() ), QBrush( Qt::white ) );
    p.setPen( QPen( Qt::red ) );
    p.drawRect( 10, 10, 80, 80 );
    pix.save( "test.png" );
    return 0;
}

QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::setPen: Painter not active
QPainter::drawRects: Painter not active

inputPixelsNetPixmap = new QPixmap(ui->inputSymbolPixelsNet->size());

QString mydate(date.toString(Qt::ISODate));

QMAKE_CXXFLAGS_EXCEPTIONS_ON = -fexceptions -mthreads
QMAKE_CXXFLAGS_EXCEPTIONS_OFF = -fno-exceptions

bool MyApplication::notify(QObject *receiver, QEvent *event)
{
    if (QEvent::Paint == event->type() && m_overWidget) {
        bool ret = QApplication::notify(receiver, event);
        QWidget *widget = qobject_cast<QWidget *>(receiver);
        if (!m_overWidget->isAncestorOf(widget))
            return ret;
        QPainter painter(widget);

        QWidget *parent = widget;

        while(parent && parent->parentWidget() && (parent->parentWidget() != m_overWidget))
            parent = parent->parentWidget();

        if (parent != m_overWidget) {
            QPoint point = widget->mapTo(parent, parent->pos());
            QRect rect = widget->rect().translated(point);

            painter.setWindow(rect);
        }

        painter.drawPixmap(m_pix.rect(), m_pix);
        return ret;
    }
    return QApplication::notify(receiver, event);
}

Цитата(vanvo @ 23.10.2009, 22:18)

      p = new QPainter(this);
      p->setPen(QPen(Qt::red, 1, Qt::SolidLine, Qt::RoundCap));
      p->setBrush(QBrush(Qt::black, Qt::SolidPattern));
      p->drawEllipse(0, 0, x, y);
      p->end();
   }
private:
      QPainter *p;

        QSpacerItem *spacer = ui->verticalSpacer;
        const QSize size = spacer->sizeHint();
        spacer->changeSize(size.width(), size.height() + 10);
        //spacer->invalidate();

QTableView::item:selected {
    background: #ece9d8;
    color: blue;
 }

win32:RC_FILE += rs.rc