void PageViewportControllerClientQt::setContentsScale(float localScale, bool treatAsInitialValue)
{
if (treatAsInitialValue) {
clearRelativeZoomState();
setContentRectVisiblePositionAtScale(QPointF(), localScale);
} else
scaleContent(localScale);
}
void PageViewportControllerClientQt::setContentRectVisiblePositionAtScale(const QPointF& location, qreal itemScale)
{
ASSERT(itemScale >= 0);
scaleContent(itemScale);
// To animate the position together with the scale we multiply the position with the current scale
// and add it to the page position (displacement on the flickable contentItem because of additional items).
QPointF newPosition(m_pageItem->position() + location * itemScale);
m_viewportItem->setContentPos(newPosition);
}
void PageViewportControllerClientQt::pinchGestureRequestUpdate(const QPointF& pinchCenterInViewportCoordinates, qreal totalScaleFactor)
{
ASSERT(m_controller->hasSuspendedContent());
if (!m_controller->allowsUserScaling())
return;
// Changes of the center position should move the page even if the zoom factor does not change.
const qreal pinchScale = m_pinchStartScale * totalScaleFactor;
// Allow zooming out beyond mimimum scale on pages that do not explicitly disallow it.
const qreal targetScale = m_controller->outerBoundedViewportScale(pinchScale);
scaleContent(targetScale, m_viewportItem->mapToWebContent(pinchCenterInViewportCoordinates));
const QPointF positionDiff = pinchCenterInViewportCoordinates - m_lastPinchCenterInViewportCoordinates;
m_lastPinchCenterInViewportCoordinates = pinchCenterInViewportCoordinates;
m_viewportItem->setContentPos(m_viewportItem->contentPos() - positionDiff);
}
void QtViewportHandler::pinchGestureRequestUpdate(const QPointF& pinchCenterInViewportCoordinates, qreal totalScaleFactor)
{
ASSERT(m_suspendCount);
if (!m_allowsUserScaling)
return;
// Changes of the center position should move the page even if the zoom factor
// does not change.
const qreal cssScale = cssScaleFromItem(m_pinchStartScale * totalScaleFactor);
// Allow zooming out beyond mimimum scale on pages that do not explicitly disallow it.
const qreal targetCSSScale = outerBoundedCSSScale(cssScale);
scaleContent(m_viewportItem->mapToWebContent(pinchCenterInViewportCoordinates), targetCSSScale);
const QPointF positionDiff = pinchCenterInViewportCoordinates - m_lastPinchCenterInViewportCoordinates;
m_lastPinchCenterInViewportCoordinates = pinchCenterInViewportCoordinates;
m_viewportItem->setContentPos(m_viewportItem->contentPos() - positionDiff);
}
void PageViewportControllerClientQt::setPageScaleFactor(float localScale)
{
scaleContent(localScale);
}
void PageViewportControllerClientQt::setContentsScale(float localScale)
{
scaleContent(localScale);
}
