Details
-
Bug
-
Resolution: Out of scope
-
P2: Important
-
None
-
5.12.1, 5.12.2
-
None
-
Arch Linux 5.0.7 Qt 5.12.2 (gcc 8.2.1 and clang 8.0.0)
Windows 10 Pro 1809 (17763.437) Qt 5.12.2 and 5.12.1 (MinGW 64bit and MSVC2017 64bit) (VMware VM)
macOS Mojave 10.14.4 Qt 5.12.2 (clang 10.0.1) (VMware VM)
-
Linux/Wayland,
macOS,
Windows
Description
Lines drawn with drawLines and functions that call drawLines like drawPolygon have uneven/incorrect splits. Using the following code produces the result shown in lines.jpg attachment. It also draws one pixel at 0,0 coordinates.
Test code:
void mQWidget::paintEvent(QPaintEvent *event) { QPainter painter; painter.begin(this); painter.fillRect(this->rect(), QBrush(Qt::black, Qt::SolidPattern)); QPen pen(Qt::white); pen.setStyle(Qt::SolidLine); painter.setPen(pen); QVector<QLineF> lines(10); lines.append(QLineF(QPointF(10, 10), QPointF(10, 100))); lines.append(QLineF(QPointF(20, 10), QPointF(21, 100))); lines.append(QLineF(QPointF(30, 10), QPointF(32, 100))); lines.append(QLineF(QPointF(40, 10), QPointF(43, 100))); lines.append(QLineF(QPointF(50, 10), QPointF(54, 100))); lines.append(QLineF(QPointF(70, 10), QPointF(70, 100))); lines.append(QLineF(QPointF(80, 10), QPointF(79, 100))); lines.append(QLineF(QPointF(90, 10), QPointF(88, 100))); lines.append(QLineF(QPointF(100, 10), QPointF(97, 100))); lines.append(QLineF(QPointF(110, 10), QPointF(106, 100))); painter.drawLines(lines); painter.end(); }
