File indexing completed on 2024-04-28 09:46:52

 /*
     SPDX-FileCopyrightText: 2015 Lindsay Roberts <os@lindsayr.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "ScrollState.h"
 
 #include <QWheelEvent>
 
 using namespace Konsole;
 
 void ScrollState::addWheelEvent(const QWheelEvent *wheel)
 {
     if ((wheel->angleDelta().y() != 0) && (wheel->pixelDelta().y() == 0)) {
         _remainingScrollPixel = 0;
     } else {
         _remainingScrollPixel += wheel->pixelDelta().y();
     }
     _remainingScrollAngle += wheel->angleDelta().y();
 }
 
 void ScrollState::clearAll()
 {
     _remainingScrollPixel = 0;
     _remainingScrollAngle = 0;
 }
 
 int ScrollState::consumeLegacySteps(int stepsize)
 {
     if (stepsize < 1) {
         stepsize = DEFAULT_ANGLE_SCROLL_LINE;
     }
     const int steps = _remainingScrollAngle / stepsize;
     _remainingScrollAngle -= steps * stepsize;
     if (steps != 0) {
         _remainingScrollPixel = 0;
     }
     return steps;
 }
 
 int ScrollState::consumeSteps(int pixelStepSize, int angleStepSize)
 {
     if (_remainingScrollPixel != 0) {
         int steps = _remainingScrollPixel / pixelStepSize;
         _remainingScrollPixel -= steps * pixelStepSize;
         _remainingScrollAngle = 0;
         return steps;
     }
     int steps = _remainingScrollAngle / angleStepSize;
     _remainingScrollAngle -= steps * angleStepSize;
     _remainingScrollPixel = 0;
     return steps;
 }