void KNWidgetSwitcher::setCurrentWidget(int currentIndex)
{
//Ensure the current index is in the range.
Q_ASSERT(currentIndex>-1 && currentIndex<m_widgets.size());
//Change the current index widget to be the target widget without animation.
//Hide the widget.
setWidgetVisible(m_currentIndex, false);
//Reset the out widget index to invalid.
m_outWidgetIndex=-1;
//Save current index.
m_currentIndex=currentIndex;
//Show the widget.
setWidgetVisible(m_currentIndex, true);
//Move the current widget.
m_widgets.at(m_currentIndex)->setGeometry(rect());
}
void KNWidgetSwitcher::setCurrentIndex(const int ¤tIndex)
{
//Ensure the current index is in the range.
Q_ASSERT(currentIndex>-1 && currentIndex<m_widgets.size());
//Check the following things:
// 1. The current index is right the index we want.
// 2. There's a switching animation is running.
//If any one of the condition is detected, ignore the requirement.
if(currentIndex==m_currentIndex ||
m_movingAnimationGroup->state()==QAbstractAnimation::Running)
{
return;
}
//Stop the animation group.
m_movingAnimationGroup->stop();
//Save the last widget index to out index, set the new current index.
m_outWidgetIndex=m_currentIndex;
m_currentIndex=currentIndex;
//Get the current widget.
QWidget *currentWidget=m_widgets.at(m_currentIndex);
//Reset the animation target.
m_inAnimation->setTargetObject(currentWidget);
m_outAnimation->setTargetObject(m_widgets.at(m_outWidgetIndex));
//Update the start and end value.
updateAnimationPosition();
//Prepare the widget.
setWidgetVisible(m_currentIndex, true);
//Raise the current widget.
currentWidget->raise();
//Emit start to move signal.
emit moveStart();
//Start animation.
m_movingAnimationGroup->start();
}
void KNWidgetSwitcher::onActionMovingFinished()
{
//Emit move finished signal.
emit moveEnd();
//Check out whether widget index is invalid.
if(m_outWidgetIndex<0 || (m_outWidgetIndex>m_widgets.size()))
{
//Ignore the calling.
return;
}
//Hide the widget.
setWidgetVisible(m_outWidgetIndex, false);
//Reset the out widget index to invalid.
m_outWidgetIndex=-1;
}
void KNWidgetSwitcher::setCurrentIndex(int currentIndex)
{
if(currentIndex==m_currentIndex)
{
return;
}
if(currentIndex>=0 && currentIndex<m_widgets.size())
{
m_switchAnime->stop();
m_flyOutAnime->setTargetObject(m_widgets.at(m_currentIndex));
m_flyInAnime->setTargetObject(m_widgets.at(currentIndex));
QRect centerRect=rect(),
leftRect=QRect(-centerRect.width(),
0,
centerRect.width(),
centerRect.height()),
rightRect=QRect(centerRect.width(),
0,
centerRect.width(),
centerRect.height());
m_flyOutAnime->setStartValue(centerRect);
m_flyInAnime->setEndValue(centerRect);
if(currentIndex > m_currentIndex)
{
//This widget is after the current, move left.
m_flyOutAnime->setEndValue(leftRect);
m_flyInAnime->setStartValue(rightRect);
}
else
{
//Move right.
m_flyOutAnime->setEndValue(rightRect);
m_flyInAnime->setStartValue(leftRect);
}
m_movedOutPage = m_currentIndex;
setWidgetVisible(currentIndex, true);
setWidgetFocus(currentIndex);
m_switchAnime->start();
m_currentIndex = currentIndex;
}
}
void KNWidgetSwitcher::hideMovedOut()
{
setWidgetVisible(m_movedOutPage, false);
emit movedComplete();
}
void KNMusicMainPlayerContent::setColumnCount(int columnCount)
{
//Checkout the column count.
if(columnCount>3)
{
//Greater than 3 columns, take it as 3 column.
columnCount=3;
}
//If the column is less than 1, there will be at least 1 column.
else if(columnCount<1)
{
//Save the column count.
columnCount=1;
}
//Check out whether the column count is the same or not.
if(columnCount!=m_columnCount)
{
//Save the valid column count.
m_columnCount=columnCount;
//Emit the changed signal.
emit columnCountChanged(m_columnCount);
//Check out the column count first.
switch(m_columnCount)
{
case 1:
//Reset the current index to 0.
m_currentIndex=0;
m_singleSwitcher->setCurrentIndex(0);
//Hide the second and the third widget.
setWidgetVisible(0, true);
setWidgetVisible(1, false);
setWidgetVisible(2, false);
//Show up the switcher.
m_singleSwitcher->show();
break;
case 2:
//Reset the index to -1.
m_currentIndex=-1;
//Hide the single switcher.
m_singleSwitcher->hide();
//Show the first and second widget.
setWidgetVisible(0, true);
setWidgetVisible(1, true);
setWidgetVisible(2, false);
break;
case 3:
//Reset the index to -1.
m_currentIndex=-1;
//Show all the widgets.
setWidgetVisible(0, true);
setWidgetVisible(1, true);
setWidgetVisible(2, true);
//Hide the single switcher.
m_singleSwitcher->hide();
break;
}
}
//Update the geometry.
regeometryWidgets();
}
