tempo-plotter Changeset - 4a2d5b5032ff · protofusion repositories

Changeset - 4a2d5b5032ff

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Hasan Yavuz ÖZDERYA - 9 years ago 2017-04-01 13:18:04
hy@ozderya.net

prevent 0 width zoom which causes a confusing view

1 file changed with 6 insertions and 1 deletions:

src/scalepicker.cpp

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src/scalepicker.cpp

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@@ @@ -123,50 +123,55 @@ bool ScalePicker::eventFilter(QObject* o @@
             mouseEvent->button() == Qt::LeftButton)
+        {
             pressed = true; // not yet started
             firstPos = pos;
             firstPosPx = posPx;
+        }
         else if (event->type() == QEvent::MouseMove)
+        {
             // make sure pick size is big enough, so that just
             // clicking won't trigger pick
             if (!started && pressed && (fabs(posPx-firstPosPx) > MIN_PICK_SIZE))
+            {
                 started = true;
+            }
             pickerOverlay->updateOverlay();
             scaleOverlay->updateOverlay();
+        }
         else // event->type() == QEvent::MouseButtonRelease
+        {
             pressed = false;
             if (started)
+            {
                 // finalize
                 started = false;
                 emit picked(firstPos, pos);
                 if (firstPos != pos) // ignore 0 width zoom
+                {
                     emit picked(firstPos, pos);
+                }
+            }
             pickerOverlay->updateOverlay();
             scaleOverlay->updateOverlay();
+        }
         return true;
+    }
     else if (event->type() == QEvent::Leave)
+    {
         scaleOverlay->updateOverlay();
         pickerOverlay->updateOverlay();
         return true;
+    }
     else
+    {
         return QObject::eventFilter(object, event);
+    }
+}
 const int TEXT_MARGIN = 4;
 void ScalePicker::drawPlotOverlay(QPainter* painter)
+{
     const double FILL_ALPHA = 0.2;
     painter->save();
     painter->setPen(_pen);

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