void
VBox::calcSize(const ControlContext& cx, osg::Vec2f& out_size)
{
if ( visible() == true )
{
_renderSize.set( 0, 0 );
// collect all the members, growing the container size vertically
for( ControlList::const_iterator i = _controls.begin(); i != _controls.end(); ++i )
{
Control* child = i->get();
osg::Vec2f childSize;
bool first = i == _controls.begin();
child->calcSize( cx, childSize );
_renderSize.x() = osg::maximum( _renderSize.x(), childSize.x() );
_renderSize.y() += first ? childSize.y() : spacing() + childSize.y();
}
_renderSize.set(
_renderSize.x() + padding().left() + padding().right(),
_renderSize.y() + padding().top() + padding().bottom() );
out_size.set(
_renderSize.x() + margin().left() + margin().right(),
_renderSize.y() + margin().top() + margin().bottom() );
Container::calcSize( cx, out_size );
}
else
{
out_size.set(0,0);
}
}
void
ImageControl::calcSize(const ControlContext& cx, osg::Vec2f& out_size)
{
if ( visible() == true )
{
_renderSize.set( 0, 0 );
if ( _image.valid() )
{
_renderSize.set( _image->s(), _image->t() );
}
_renderSize.set(
osg::maximum( _renderSize.x(), width().value() ),
osg::maximum( _renderSize.y(), height().value() ) );
out_size.set(
margin().left() + margin().right() + _renderSize.x(),
margin().top() + margin().bottom() + _renderSize.y() );
_dirty = false;
}
else
{
out_size.set(0,0);
}
}
void
Control::calcSize(const ControlContext& cx, osg::Vec2f& out_size)
{
if ( visible() == true )
{
_renderSize.set( width().value(), height().value() );
out_size.set(
_renderSize.x() + margin().left() + margin().right(),
_renderSize.y() + margin().top() + margin().bottom() );
}
else
{
out_size.set(0,0);
}
}
void
LabelControl::calcSize(const ControlContext& cx, osg::Vec2f& out_size)
{
if ( visible() == true )
{
// we have to create the drawable during the layout pass so we can calculate its size.
LabelText* t = new LabelText();
t->setText( _text );
// yes, object coords. screen coords won't work becuase the bounding box will be wrong.
t->setCharacterSizeMode( osgText::Text::OBJECT_COORDS );
t->setCharacterSize( _fontSize );
// always align to top. layout alignment gets calculated layer in Control::calcPos().
t->setAlignment( osgText::Text::LEFT_TOP );
t->setColor( foreColor().value() );
if ( _font.valid() )
t->setFont( _font.get() );
osg::BoundingBox bbox = t->getTextBB();
if ( cx._viewContextID != ~0 )
{
//the Text's autoTransformCache matrix puts some mojo on the bounding box
osg::Matrix m = t->getATMatrix( cx._viewContextID );
osg::Vec3 bmin = osg::Vec3( bbox.xMin(), bbox.yMin(), bbox.zMin() ) * m;
osg::Vec3 bmax = osg::Vec3( bbox.xMax(), bbox.yMax(), bbox.zMax() ) * m;
_renderSize.set( bmax.x() - bmin.x(), bmax.y() - bmin.y() );
}
else
{
_renderSize.set( bbox.xMax()-bbox.xMin(), bbox.yMax()-bbox.yMin() );
}
_drawable = t;
out_size.set(
margin().left() + margin().right() + _renderSize.x(),
margin().top() + margin().bottom() + _renderSize.y() );
}
else
{
out_size.set(0,0);
}
_dirty = false;
}
