File indexing completed on 2024-09-15 05:09:40
0001 /* 0002 This file is part of the Okteta Gui library, made within the KDE community. 0003 0004 SPDX-FileCopyrightText: 2008 Friedrich W. H. Kossebau <kossebau@kde.org> 0005 0006 SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL 0007 */ 0008 0009 #include "zoomwheelcontroller.hpp" 0010 0011 // lib 0012 #include <abstractbytearrayview.hpp> 0013 // Qt 0014 #include <QWheelEvent> 0015 0016 namespace Okteta { 0017 0018 ZoomWheelController::ZoomWheelController(AbstractByteArrayView* view, AbstractWheelController* parent) 0019 : AbstractWheelController(parent) 0020 , mView(view) 0021 { 0022 } 0023 0024 ZoomWheelController::~ZoomWheelController() = default; 0025 0026 bool ZoomWheelController::handleWheelEvent(QWheelEvent* wheelEvent) 0027 { 0028 bool eventUsed = false; 0029 0030 if (wheelEvent->modifiers() & Qt::CTRL) { 0031 const int delta = wheelEvent->angleDelta().y(); 0032 if (delta > 0) { 0033 mView->zoomIn(); 0034 } else if (delta < 0) { 0035 mView->zoomOut(); 0036 } 0037 0038 eventUsed = true; 0039 } 0040 0041 return eventUsed ? true : AbstractWheelController::handleWheelEvent(wheelEvent); 0042 } 0043 0044 }