Hi, I'm trying to make some GUI in OSG.
But while using OSG 3 faced with a problem.
There is an osgWidget::WindowManager that holds only one child osgWidget::Box
m_box. m_box itself holds 2 widgets osgWidget::Widget m_button and
osgWidget::Input m_input.
Simply applying osgWidget::Callback on the event EVENT_MOUSE_PUSH to m_button
do nothing. Applying the same callback to the m_box makes the callback to be
called on mouse push.
Step-by-step execution showed that m_box don't even try to transmit event to
it's children or I completely didn't understand the way it should be configured
:( .
Can anyone explain how to apply callbacks to the widgets correctly?
Here is some source:
Code:
// Callback itself
class ButtonCallback : public osgWidget::Callback
{
public:
ButtonCallback(osgWidget::EventType event_type) :
osgWidget::Callback(event_type) {}
virtual bool operator () (osgWidget::Event& event)
{
osgWidget::Widget* widget = event.getWidget();
const std::string name = event.getWindow()->getName();
return false;
}
};
MainMenu::MainMenu(osgViewer::Viewer* viewer)
{
m_viewer = viewer;
m_wm = new osgWidget::WindowManager(viewer, 800, 600, MASK_2D);
m_box = new osgWidget::Box("vbox", osgWidget::Box::VERTICAL);
osgWidget::Widget* m_button = new osgWidget::Widget("button");
m_button->setSize(100, 100);
m_button->setColor(1,0,0,1);
m_button->setCanFill(false);
m_button->setPadBottom(10);
m_button->addCallback(new ButtonCallback(osgWidget::EVENT_MOUSE_PUSH));
m_box->addWidget(m_button);
m_box->setOrigin(20, 20);
m_box->addCallback(new ButtonCallback(osgWidget::EVENT_MOUSE_PUSH));
m_wm->addChild(m_box);
m_viewer->setUpViewInWindow(50, 50, static_cast<int>(m_wm->getWidth()),
static_cast<int>(m_wm->getHeight()));
m_camera = m_wm->createParentOrthoCamera();
m_viewer->addEventHandler(new osgWidget::MouseHandler(m_wm));
m_viewer->addEventHandler(new osgWidget::KeyboardHandler(m_wm));
m_viewer->addEventHandler(new osgWidget::ResizeHandler(m_wm, m_camera));
m_viewer->addEventHandler(new osgWidget::CameraSwitchHandler(m_wm,
m_camera));
m_viewer->addEventHandler(new osgViewer::WindowSizeHandler());
m_wm->resizeAllWindows();
addChild(m_camera);
}
Thank you!
Cheers,
Mikalai[/code]
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Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=45153#45153
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