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Change some general functions to SubWindowHandle in order to prepare code to the modules sub window type

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jfmcarreira
2015-01-17 18:06:41 +00:00
parent a8b66f88ea
commit 08eaa19412
4 changed files with 129 additions and 117 deletions
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app/SubWindowHandle.cpp
+90
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@@ -30,14 +30,104 @@ namespace plaYUVer
SubWindowHandle::SubWindowHandle( QWidget * parent, UInt category ) :
QMdiSubWindow( parent )
{
setParent( parent );
setAttribute( Qt::WA_DeleteOnClose );
setBackgroundRole( QPalette::Light );
// Create a new scroll area inside the sub-window
m_cScrollArea = new QScrollArea( this );
connect( m_cScrollArea->horizontalScrollBar(), SIGNAL( actionTriggered( int ) ), this, SLOT( updateLastScrollValue() ) );
connect( m_cScrollArea->verticalScrollBar(), SIGNAL( actionTriggered( int ) ), this, SLOT( updateLastScrollValue() ) );
setWidget( m_cScrollArea );
m_cScrollArea->setWidgetResizable( true );
m_cLastScroll = QPoint();
m_uiCategory = category;
m_cWindowName = QString( " " );
}
SubWindowHandle::~SubWindowHandle()
{
delete m_cScrollArea;
}
Void SubWindowHandle::setMainWidget( QWidget *widget )
{
m_cScrollArea->setWidget( widget );
}
Void SubWindowHandle::processZoomChanged( Double factor, QPoint center )
{
adjustScrollBarByZoom( factor, center );
emit zoomChanged();
}
QSize SubWindowHandle::getScrollSize()
{
return QSize( m_cScrollArea->viewport()->size().width() - 5, m_cScrollArea->viewport()->size().height() - 5 );
}
Void SubWindowHandle::adjustScrollBarByOffset( QPoint Offset )
{
QScrollBar *scrollBar = m_cScrollArea->horizontalScrollBar();
scrollBar->setValue( int( scrollBar->value() + Offset.x() ) );
m_cLastScroll.setX( scrollBar->value() );
scrollBar = m_cScrollArea->verticalScrollBar();
scrollBar->setValue( int( scrollBar->value() + Offset.y() ) );
m_cLastScroll.setY( scrollBar->value() );
updateLastScrollValue();
}
// This function was developed with help of the schematics presented in
// http://stackoverflow.com/questions/13155382/jscrollpane-zoom-relative-to-mouse-position
Void SubWindowHandle::adjustScrollBarByZoom( Double factor, QPoint center )
{
QScrollBar *scrollBar = m_cScrollArea->horizontalScrollBar();
if( center.isNull() )
{
scrollBar->setValue( int( factor * scrollBar->value() + ( ( factor - 1 ) * scrollBar->pageStep() / 2 ) ) );
}
else
{
Int x = center.x() - m_cLastScroll.x();
Int value = int( factor * m_cLastScroll.x() + ( ( factor - 1 ) * x ) );
if( value > scrollBar->maximum() )
value = scrollBar->maximum();
if( value < scrollBar->minimum() )
value = scrollBar->minimum();
scrollBar->setValue( value );
}
scrollBar = m_cScrollArea->verticalScrollBar();
if( center.isNull() )
{
scrollBar->setValue( int( factor * scrollBar->value() + ( ( factor - 1 ) * scrollBar->pageStep() / 2 ) ) );
}
else
{
Int y = center.y() - m_cLastScroll.y();
Int value = int( factor * m_cLastScroll.y() + ( ( factor - 1 ) * y ) );
if( value > scrollBar->maximum() )
value = scrollBar->maximum();
if( value < scrollBar->minimum() )
value = scrollBar->minimum();
scrollBar->setValue( value );
}
updateLastScrollValue();
}
Void SubWindowHandle::updateLastScrollValue()
{
QScrollBar *scrollBar = m_cScrollArea->horizontalScrollBar();
m_cLastScroll.setX( scrollBar->value() );
scrollBar = m_cScrollArea->verticalScrollBar();
m_cLastScroll.setY( scrollBar->value() );
}
Void SubWindowHandle::setWindowName( QString name )
{
m_cWindowName = name;