Exemplos de wheelZoom em C++ (Cpp)

Exemplo n.º 1

Arquivo: imagewidget.cpp Projeto: xorgy/eyesight

void ImageWidget::wheelEvent(QWheelEvent *event)
{
    int numDegrees = event->delta() / 8;
    int numSteps = numDegrees / 15;
    if (numSteps > 0) {
        emit wheelZoom(1);
    }
    if (numSteps < 0) {
        emit wheelZoom(-1);
    }
}

Exemplo n.º 2

Arquivo: qgscomposerview.cpp Projeto: kiith-sa/QGIS

void QgsComposerView::wheelEvent( QWheelEvent* event )
{
  if ( currentTool() == MoveItemContent )
  {
    //move item content tool, so scroll events get handled by the selected composer item

    QPointF scenePoint = mapToScene( event->pos() );
    //select topmost item at position of event
    QgsComposerItem* theItem = composition()->composerItemAt( scenePoint );
    if ( theItem )
    {
      if ( theItem->isSelected() )
      {
        QPointF itemPoint = theItem->mapFromScene( scenePoint );
        theItem->beginCommand( tr( "Zoom item content" ) );
        theItem->zoomContent( event->delta(), itemPoint.x(), itemPoint.y() );
        theItem->endCommand();
      }
    }
  }
  else
  {
    //not using move item content tool, so zoom whole composition
    wheelZoom( event );
  }
}

Exemplo n.º 3

Arquivo: qgslayoutview.cpp Projeto: peterisb/QGIS

void QgsLayoutView::wheelEvent( QWheelEvent *event )
{
  if ( mTool )
  {
    mTool->wheelEvent( event );
  }

  if ( !mTool || !event->isAccepted() )
  {
    event->accept();
    wheelZoom( event );
  }
}

Exemplo n.º 4

Arquivo: outputwindow.cpp Projeto: alexey-zayats/athletic

void OutputWindow::wheelEvent(QWheelEvent *e)
{
    if (d->m_zoomEnabled) {
        if (e->modifiers() & Qt::ControlModifier) {
            float delta = e->angleDelta().y() / 120.f;
            zoomInF(delta);
            emit wheelZoom();
            return;
        }
    }
    QAbstractScrollArea::wheelEvent(e);
    updateMicroFocus();
}

Exemplo n.º 5

Arquivo: qgscomposerview.cpp Projeto: dgstl/QGIS

void QgsComposerView::wheelEvent( QWheelEvent* event )
{
  if ( mRubberBandItem || mRubberBandLineItem )
  {
    //ignore wheel events while marquee operations are active (eg, creating new item)
    return;
  }

  if ( composition()->selectionHandles()->isDragging() || composition()->selectionHandles()->isResizing() )
  {
    //ignore wheel events while dragging/resizing items
    return;
  }

  if ( currentTool() == MoveItemContent )
  {
    //move item content tool, so scroll events get handled by the selected composer item

    QPointF scenePoint = mapToScene( event->pos() );
    //select topmost item at position of event
    QgsComposerItem* theItem = composition()->composerItemAt( scenePoint, true );
    if ( theItem )
    {
      if ( theItem->isSelected() )
      {
        QPointF itemPoint = theItem->mapFromScene( scenePoint );
        theItem->beginCommand( tr( "Zoom item content" ) );
        theItem->zoomContent( event->delta(), itemPoint.x(), itemPoint.y() );
        theItem->endCommand();
      }
    }
  }
  else
  {
    //not using move item content tool, so zoom whole composition
    wheelZoom( event );
  }
}

Exemplo n.º 6

Arquivo: InputController.cpp Projeto: trnielsen/mantid

/**
  * Process the mouse wheel event.
  * Send the wheel zoom signal.
  */
void InputController3DMove::wheelEvent(QWheelEvent *event)
{
    emit wheelZoom( event->x(), event->y(), event->delta() );
}