FGFS-4.1/OpenSceneGraph
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Implemented the selection of tabs by clicking, using mouse wheel or arrow keys.

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git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14443 16af8721-9629-0410-8352-f15c8da7e697
This commit is contained in:
Robert Osfield
2014-09-10 11:59:51 +00:00
parent 6b82d4099f
commit fafe06acbf
1 changed files with 88 additions and 2 deletions
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90
src/osgUI/TabWidget.cpp
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@@ -35,7 +35,88 @@ TabWidget::TabWidget(const osgUI::TabWidget& tabwidget, const osg::CopyOp& copyo
bool TabWidget::handleImplementation(osgGA::EventVisitor* ev, osgGA::Event* event)
{
// OSG_NOTICE<<"TabWidget::handleImplementation"<<std::endl;
osgGA::GUIEventAdapter* ea = event->asGUIEventAdapter();
if (!ea) return false;
osgGA::GUIActionAdapter* aa = ev ? ev->getActionAdapter() : 0;
if (!aa) return false;
if (!getHasEventFocus()) return false;
unsigned int tabHeaderContainsPointer = _tabs.size();
// test if active tab header contains pointer
{
osg::NodePath nodePath = ev->getNodePath();
nodePath.push_back(_selectedHeaderSwitch.get());
osgUtil::LineSegmentIntersector::Intersections intersections;
if (aa->computeIntersections(*ea, nodePath, intersections))
{
tabHeaderContainsPointer = _currentIndex;
}
}
// test if inactive tab header contains pointer
{
osg::NodePath nodePath = ev->getNodePath();
nodePath.push_back(_unselectedHeaderSwitch.get());
osgUtil::LineSegmentIntersector::Intersections intersections;
if (aa->computeIntersections(*ea, nodePath, intersections))
{
const osgUtil::LineSegmentIntersector::Intersection& Intersection = *intersections.begin();
for(osg::NodePath::const_iterator itr = Intersection.nodePath.begin();
itr != Intersection.nodePath.end();
++itr)
{
if ((*itr)->getUserValue("index",tabHeaderContainsPointer)) break;
}
}
}
if (tabHeaderContainsPointer>=_tabs.size()) return false;
switch(ea->getEventType())
{
case(osgGA::GUIEventAdapter::SCROLL):
if (ea->getScrollingMotion()==osgGA::GUIEventAdapter::SCROLL_DOWN)
{
if (getCurrentIndex()<_tabs.size()-1) setCurrentIndex(getCurrentIndex()+1);
return true;
}
else if (ea->getScrollingMotion()==osgGA::GUIEventAdapter::SCROLL_UP)
{
if (getCurrentIndex()>0) setCurrentIndex(getCurrentIndex()-1);
return true;
}
break;
case(osgGA::GUIEventAdapter::KEYDOWN):
if (ea->getKey()==osgGA::GUIEventAdapter::KEY_Down || ea->getKey()==osgGA::GUIEventAdapter::KEY_Right )
{
if (getCurrentIndex()<_tabs.size()-1) setCurrentIndex(getCurrentIndex()+1);
return true;
}
else if (ea->getKey()==osgGA::GUIEventAdapter::KEY_Up || ea->getKey()==osgGA::GUIEventAdapter::KEY_Left )
{
if (getCurrentIndex()>0) setCurrentIndex(getCurrentIndex()-1);
return true;
}
break;
case(osgGA::GUIEventAdapter::RELEASE):
{
setCurrentIndex(tabHeaderContainsPointer);
return true;
break;
}
default:
break;
}
return false;
}
@@ -88,6 +169,8 @@ void TabWidget::createGraphicsImplementation()
{
Style* style = (getStyle()!=0) ? getStyle() : Style::instance().get();
// bool requiresFrame = (getFrameSettings() && getFrameSettings()->getShape()!=osgUI::FrameSettings::NO_FRAME);
_unselectedHeaderSwitch = new osg::Switch;
_selectedHeaderSwitch = new osg::Switch;
_tabWidgetSwitch = new osg::Switch;
@@ -103,9 +186,10 @@ void TabWidget::createGraphicsImplementation()
float zMin = _extents.zMin();
float zMax = _extents.zMax();
unsigned int tabIndex = 0;
for(Tabs::iterator itr = _tabs.begin();
itr != _tabs.end();
++itr)
++itr, ++tabIndex)
{
Tab* tab = itr->get();
@@ -122,10 +206,12 @@ void TabWidget::createGraphicsImplementation()
osg::ref_ptr<osg::Node> selected_panel = style->createPanel(headerExtents, osg::Vec4(selected, selected, selected, 1.0f));
osg::ref_ptr<osg::Group> selected_group = new osg::Group;
selected_group->setUserValue("index",tabIndex);
selected_group->addChild(selected_panel.get());
selected_group->addChild(text.get());
osg::ref_ptr<osg::Group> unselected_group = new osg::Group;
unselected_group->setUserValue("index",tabIndex);
unselected_group->addChild(unselected_panel.get());
unselected_group->addChild(text.get());