Hello all, hello Jeremy,
I'm using osgWidget for the first time, thinking of using it for a
little addition I'm planning for OSG eventually, and just trying to get
familiar with it. I have a few questions.
First, here's my code:
const unsigned int MASK_2D = 0xF0000000;
// To be able to pass an osg::Vec4 to a
// setColor(float, float, float, float) method
#define mySetColor(obj, c) (obj->setColor(c.r(), c.g(), c.b(), c.a()))
DebugHUD::DebugHUD(osgViewer::View* view)
{
osg::Vec4 titleBarColor(0, 0, 0.5, 0.5);
osg::Vec4 backgroundColor(0.2, 0.2, 0.7, 0.5);
osgWidget::point_type w = view->getCamera()->getViewport()->width();
osgWidget::point_type h = view->getCamera()->getViewport()->height();
m_windowManager = new osgWidget::WindowManager(view, w, h, MASK_2D);
osgWidget::Frame* frame = osgWidget::Frame::createSimpleFrameFromTheme(
"frameTheme",
osgDB::readImageFile("osgWidget/theme-1.png"),
300.0f,
300.0f,
osgWidget::Frame::FRAME_ALL
);
frame->setPosition(300,100,0);
osgWidget::Table* table = new osgWidget::Table("table", 1, 1);
osgWidget::Widget* center = new osgWidget::Widget("center", 300.0f,
300.0f);
mySetColor(center, backgroundColor);
center->setAlignVertical(osgWidget::Widget::VA_TOP); // Doesn't work
table->addWidget(center, 0, 0);
frame->setWindow(table);
mySetColor(frame->getBackground(), osg::Vec4(1.0, 1.0, 1.0, 0.0));
mySetColor(frame->getBorder(osgWidget::Frame::BORDER_TOP),
titleBarColor);
mySetColor(frame->getCorner(osgWidget::Frame::CORNER_UPPER_LEFT),
titleBarColor);
mySetColor(frame->getCorner(osgWidget::Frame::CORNER_UPPER_RIGHT),
titleBarColor);
mySetColor(frame->getBorder(osgWidget::Frame::BORDER_LEFT),
backgroundColor);
mySetColor(frame->getBorder(osgWidget::Frame::BORDER_RIGHT),
backgroundColor);
mySetColor(frame->getBorder(osgWidget::Frame::BORDER_BOTTOM),
backgroundColor);
mySetColor(frame->getCorner(osgWidget::Frame::CORNER_LOWER_LEFT),
backgroundColor);
mySetColor(frame->getCorner(osgWidget::Frame::CORNER_LOWER_RIGHT),
backgroundColor);
m_windowManager->addChild(frame);
m_camera = m_windowManager->createParentOrthoCamera();
m_windowManager->resizeAllWindows();
view->getCamera()->addChild(m_camera.get());
view->addEventHandler(new
osgWidget::MouseHandler(m_windowManager.get()));
view->addEventHandler(new
osgWidget::KeyboardHandler(m_windowManager.get()));
view->addEventHandler(new
osgWidget::ResizeHandler(m_windowManager.get(), m_camera.get()));
view->addEventHandler(new
osgWidget::CameraSwitchHandler(m_windowManager.get(), m_camera.get()));
}
So, here are my questions.
1. The widget in the center is not the color I set it to. The alpha
doesn't seem to be taken into account. I'd like my whole window to be a
transparent blue (backgroundColor).
2. When I resize the frame to make it larger (dragging the bottom-right
corner down and to the right for example), I'd like the widget in the
center to resize itself to fit. Is that possible? Well, in fact if I
could do without that widget it would be even better, but I want the
center of the window to be transparent blue, and
getBackground()->setColor() makes the color visible even on the corners
of the window, which I don't want...
3. I want the widgets in my frame to stay at the top of the frame when
it's resized. But even if I set my widget's vertical alignment to
VA_TOP, it doesn't work (see the line with the "Doesn't work" comment
above). Is that a bug or should I do something else to get what I want?
BTW, to set the vertical alignment I would have expected to call
setVerticalAlignment instead of setAlignVertical, any reason why it's
named that way? setVerticalAlignment seems more natural.
Other than that, it seems that osgWidget will allow me to do what I want
and I'm enjoying working with it (though I'm only doing basic things
right now...).
Thanks in advance,
J-S
--
______________________________________________________
Jean-Sebastien Guay jean-sebastien.g...@cm-labs.com
http://www.cm-labs.com/
http://whitestar02.webhop.org/
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