ui: revert onroad round border corners (commaai#203)

Author: sunnyhaibin

selfdrive/ui/qt/onroad.cc

@@ -217,10 +217,7 @@ void OnroadWindow::offroadTransition(bool offroad) {
 
 void OnroadWindow::paintEvent(QPaintEvent *event) {
   QPainter p(this);
-
-  QPainterPath path;
-  path.addRoundedRect(rect(), 40, 40);
-  p.fillPath(path, QColor(bg.red(), bg.green(), bg.blue(), 255));
+  p.fillRect(rect(), QColor(bg.red(), bg.green(), bg.blue(), 255));
 }
 
 // ***** onroad widgets *****
@@ -633,11 +630,7 @@ void AnnotatedCameraWidget::drawHud(QPainter &p) {
   QLinearGradient bg(0, header_h - (header_h / 2.5), 0, header_h);
   bg.setColorAt(0, QColor::fromRgbF(0, 0, 0, 0.45));
   bg.setColorAt(1, QColor::fromRgbF(0, 0, 0, 0));
-
-  QRect headerRect(0, 0, width(), header_h);
-  QPainterPath headerPath;
-  headerPath.addRoundedRect(headerRect, 30, 30);
-  p.fillPath(headerPath, bg);
+  p.fillRect(0, 0, width(), header_h, bg);
 
   QString speedLimitStr = (speedLimit > 1) ? QString::number(std::nearbyint(speedLimit)) : "–";
   QString speedLimitStrSlc = showSpeedLimit ? QString::number(std::nearbyint(speedLimitSLC)) : "–";
@@ -1868,17 +1861,6 @@ void AnnotatedCameraWidget::paintEvent(QPaintEvent *event) {
       CameraWidget::updateCalibration(DEFAULT_CALIBRATION);
     }
     painter.beginNativePainting();
-
-    // Create a QPainterPath with rounded corners
-    QPainterPath path;
-    int radius = 30;
-    int width = CameraWidget::width();
-    int height = CameraWidget::height();
-    path.addRoundedRect(0, 0, width, height, radius, radius);
-
-    // Set the path as the clipping region for the painter
-    painter.setClipPath(path);
-
     CameraWidget::setFrameId(model.getFrameId());
     CameraWidget::paintGL();
     painter.endNativePainting();
@@ -1887,8 +1869,6 @@ void AnnotatedCameraWidget::paintEvent(QPaintEvent *event) {
   painter.setRenderHint(QPainter::Antialiasing);
   painter.setPen(Qt::NoPen);
 
-  setBackgroundColor(bg_colors[s->status]);
-
   if (s->worldObjectsVisible()) {
     if (sm.rcv_frame("modelV2") > s->scene.started_frame) {
       update_model(s, sm["modelV2"].getModelV2(), sm["uiPlan"].getUiPlan());