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42 QPainter painter(this);
44 painter.setPen(Qt::darkGreen);
45 painter.drawRect(1, 2, 6, 4);
50 QPainter painter(this);
52 painter.setPen(Qt::darkGreen);
53 painter.drawLine(2, 7, 6, 1);
58 QPainter painter(this);
59 painter.setRenderHint(
60 QPainter::Antialiasing);
61 painter.setPen(Qt::darkGreen);
62 painter.drawRect(1, 2, 6, 4);
67 QPainter painter(this);
68 painter.setRenderHint(
69 QPainter::Antialiasing);
70 painter.setPen(Qt::darkGreen);
71 painter.drawLine(2, 7, 6, 1);
76 QPainter painter(this);
77 painter.setWindow(QRect(-50, -50, 100, 100));
82 int side = qMin(width(), height())
83 int x = (width() - side / 2);
84 int y = (height() - side / 2);
86 painter.setViewport(x, y, side, side);