A QScrollArea subclass with improved scrolling behavior. More...
#include <qgsscrollarea.h>
Public Member Functions | |
| QgsScrollArea (QWidget *parent=nullptr) | |
| Constructor for QgsScrollArea. More... | |
| bool | hasScrolled () const |
| Returns true if a scroll recently occurred within the QScrollArea or its child viewport() More... | |
| void | scrollOccurred () |
| Should be called when a scroll occurs on with the QScrollArea itself or its child viewport(). More... | |
Protected Member Functions | |
| void | wheelEvent (QWheelEvent *event) override |
Detailed Description
A QScrollArea subclass with improved scrolling behavior.
QgsScrollArea should be used instead of QScrollArea widgets. In most cases the use is identical, however QgsScrollArea has extra logic to avoid wheel events changing child widget values when the mouse cursor is temporarily located over a child widget during a scroll event.
All QGIS code and plugins should use QgsScrollArea in place of QScrollArea.
- Since
- QGIS 3.0
Definition at line 41 of file qgsscrollarea.h.
Constructor & Destructor Documentation
◆ QgsScrollArea()
|
explicit |
Constructor for QgsScrollArea.
Definition at line 23 of file qgsscrollarea.cpp.
Member Function Documentation
◆ hasScrolled()
| bool QgsScrollArea::hasScrolled | ( | ) | const |
Returns true if a scroll recently occurred within the QScrollArea or its child viewport()
Definition at line 43 of file qgsscrollarea.cpp.
◆ scrollOccurred()
| void QgsScrollArea::scrollOccurred | ( | ) |
Should be called when a scroll occurs on with the QScrollArea itself or its child viewport().
Definition at line 37 of file qgsscrollarea.cpp.
◆ wheelEvent()
|
overrideprotected |
Definition at line 30 of file qgsscrollarea.cpp.
The documentation for this class was generated from the following files:
- /tmp/buildd/qgis-3.6.0+99unstable/src/gui/qgsscrollarea.h
- /tmp/buildd/qgis-3.6.0+99unstable/src/gui/qgsscrollarea.cpp
