diff options
| author | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2019-12-09 12:07:00 +0100 |
|---|---|---|
| committer | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2019-12-10 00:38:40 +0100 |
| commit | 191ac31598ccc9d7c8a2c83730755714f903b7ca (patch) | |
| tree | d7b8aa99fd2a2e13802ae1ebc6e85124ffce8159 /examples/widgets/widgets | |
| parent | 03dc30acca4976c716c723ff46d503d35459b2a0 (diff) | |
Modernize shapedclock example
Relying on the hard clipping of QRegion widget masks to create
non-rectangular windows is a solution from a bygone era. The result
looks horrible with today's eyes, particularly on a high-dpi
screen. Update the example to create smooth anti-aliased edges using
translucent window bacground.
Task-number: QTBUG-64229
Change-Id: I8859d61177d2a2dc446632c23f27f42050e0d7c7
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
Diffstat (limited to 'examples/widgets/widgets')
| -rw-r--r-- | examples/widgets/widgets/shapedclock/shapedclock.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/examples/widgets/widgets/shapedclock/shapedclock.cpp b/examples/widgets/widgets/shapedclock/shapedclock.cpp index 3c78f4da89..673d1a218f 100644 --- a/examples/widgets/widgets/shapedclock/shapedclock.cpp +++ b/examples/widgets/widgets/shapedclock/shapedclock.cpp @@ -61,6 +61,7 @@ ShapedClock::ShapedClock(QWidget *parent) : QWidget(parent, Qt::FramelessWindowHint | Qt::WindowSystemMenuHint) { + setAttribute(Qt::WA_TranslucentBackground); QTimer *timer = new QTimer(this); connect(timer, &QTimer::timeout, this, QOverload<>::of(&ShapedClock::update)); timer->start(1000); @@ -123,6 +124,10 @@ void ShapedClock::paintEvent(QPaintEvent *) painter.scale(side / 200.0, side / 200.0); painter.setPen(Qt::NoPen); + painter.setBrush(palette().window()); + painter.drawEllipse(QPoint(0, 0), 98, 98); + + painter.setPen(Qt::NoPen); painter.setBrush(hourColor); painter.save(); @@ -168,6 +173,6 @@ void ShapedClock::resizeEvent(QResizeEvent * /* event */) //! [5] QSize ShapedClock::sizeHint() const { - return QSize(100, 100); + return QSize(200, 200); } //! [5] |