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Added beginnings of ComboBox popup functionality.

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This commit is contained in:
Robert Osfield
2014-05-29 10:51:26 +00:00
parent 26a7c30229
commit a45ba05bdd
2 changed files with 45 additions and 14 deletions
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51
src/osgUI/ComboBox.cpp
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@@ -94,37 +94,68 @@ void ComboBox::setCurrentItem(unsigned int i)
{
OSG_NOTICE << "ComboBox::setCurrentItem("<<i<<")"<<std::endl;
_currentItem = i;
if (_switch.valid()) _switch->setSingleChildOn(_currentItem);
if (_buttonSwitch.valid()) _buttonSwitch->setSingleChildOn(_currentItem);
}
void ComboBox::createGraphicsImplementation()
{
Style* style = (getStyle()!=0) ? getStyle() : Style::instance().get();
_switch = new osg::Switch;
_buttonSwitch = new osg::Switch;
_popup = new osgUI::Popup;
_popup->setVisible(true);
if (!_items.empty())
{
float itemWidth = (_extents.xMax()-_extents.xMin());
float itemHeight = (_extents.yMax()-_extents.yMin());
float popupHeight = itemHeight * _items.size();
float gap = (_extents.yMax()-_extents.yMin())*0.1f;
float popupTop = _extents.yMin()-gap;
osg::BoundingBox popupExtents(_extents.xMin(), popupTop-popupHeight, _extents.zMin(), _extents.xMin()+itemWidth, popupTop, _extents.zMax());
_popup->setExtents(popupExtents);
osg::BoundingBox popupItemExtents(_extents.xMin(), popupTop-itemHeight, _extents.zMin(), _extents.xMin()+itemWidth, popupTop, _extents.zMax());
for(Items::iterator itr = _items.begin();
itr != _items.end();
++itr)
{
Item* item = itr->get();
OSG_NOTICE<<"Creating item "<<item->getText()<<", "<<item->getColor()<<std::endl;
osg::ref_ptr<osg::Group> group = new osg::Group;
if (item->getColor().a()!=0.0f) group->addChild( style->createPanel(_extents, item->getColor()) );
if (!item->getText().empty()) group->addChild( style->createText(_extents, getAlignmentSettings(), getTextSettings(), item->getText()) );
_switch->addChild(group.get());
// setup graphics for button
{
osg::ref_ptr<osg::Group> group = new osg::Group;
if (item->getColor().a()!=0.0f) group->addChild( style->createPanel(_extents, item->getColor()) );
if (!item->getText().empty()) group->addChild( style->createText(_extents, getAlignmentSettings(), getTextSettings(), item->getText()) );
_buttonSwitch->addChild(group.get());
}
// setup graphics for popup
{
osg::ref_ptr<osg::Group> group = new osg::Group;
if (item->getColor().a()!=0.0f) group->addChild( style->createPanel(popupItemExtents, item->getColor()) );
if (!item->getText().empty()) group->addChild( style->createText(popupItemExtents, getAlignmentSettings(), getTextSettings(), item->getText()) );
_popup->addChild(group.get());
popupItemExtents.yMin() -= itemHeight;
popupItemExtents.yMax() -= itemHeight;
}
}
}
else
{
_switch->addChild( style->createPanel(_extents, osg::Vec4(1.0f,1.0f,1.0f,1.0f)) );
_buttonSwitch->addChild( style->createPanel(_extents, osg::Vec4(1.0f,1.0f,1.0f,1.0f)) );
}
_switch->setSingleChildOn(_currentItem);
_buttonSwitch->setSingleChildOn(_currentItem);
style->setupClipStateSet(_extents, getOrCreateStateSet());
setGraphicsSubgraph(0, _switch.get());
setGraphicsSubgraph(0, _buttonSwitch.get());
addChild(_popup.get());
}