Problem with window-viewport coordinate

[damon_1990]

Hi. I have a problem with window-viewport coordinates. In my code I draw a polygon:

static const int upPoints_p[4][2] = {
        { 49, -49 }, { -49, -49 },
        { -10, -10 }, { 10, -10 }
    };
 
QPolygon up_p(4, &upPoints_p[0][0]);
painter.setWindow( -50, -50, 100, 100);
painter.drawPolygon(up_p);

static const int upPoints_p[4][2] = {
        { 49, -49 }, { -49, -49 },
        { -10, -10 }, { 10, -10 }
    };

QPolygon up_p(4, &upPoints_p[0][0]);
painter.setWindow( -50, -50, 100, 100);
painter.drawPolygon(up_p);

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and next, I would like to check mousePressEvent:

QPoint point = event->pos();
if( up_p.containsPoint(point, Qt::OddEvenFill) )
 {
 
 }

QPoint point = event->pos();
if( up_p.containsPoint(point, Qt::OddEvenFill) )
 {
                  
 }

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but I have different coordinate. Can someone help me fix my code?