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Intoduce new osgWidget::PdfReader and osgWidget::VncClient front ends to osgWidget,

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with new pdf plugin and updated vnc plugin that now support these front ends.

Updated osgpdf and osgvnc examples to new these new interfaces.
This commit is contained in:
Robert Osfield
2008-12-07 17:02:30 +00:00
parent 0114ac4734
commit 6f356aeb97
20 changed files with 752 additions and 476 deletions
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88
examples/osgvnc/osgvnc.cpp
View File

@@ -12,38 +12,6 @@
#include <osgDB/ReadFile>
osg::Node* createInteractiveQuad(const osg::Vec3& origin, osg::Vec3& widthAxis, osg::Vec3& heightAxis,
osg::Image* image)
{
bool flip = image->getOrigin()==osg::Image::TOP_LEFT;
osg::Geometry* pictureQuad = osg::createTexturedQuadGeometry(origin, widthAxis, heightAxis,
0.0f, flip ? 1.0f : 0.0f , 1.0f, flip ? 0.0f : 1.0f);
osg::Texture2D* texture = new osg::Texture2D(image);
texture->setResizeNonPowerOfTwoHint(false);
texture->setFilter(osg::Texture::MIN_FILTER,osg::Texture::LINEAR);
texture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE);
texture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE);
pictureQuad->getOrCreateStateSet()->setTextureAttributeAndModes(0,
texture,
osg::StateAttribute::ON);
osg::ref_ptr<osgViewer::InteractiveImageHandler> callback = new osgViewer::InteractiveImageHandler(image);
pictureQuad->setEventCallback(callback.get());
pictureQuad->setCullCallback(callback.get());
osg::Geode* geode = new osg::Geode;
geode->addDrawable(pictureQuad);
return geode;
}
class EscapeHandler : public osgGA::GUIEventHandler
{
public:
@@ -76,48 +44,34 @@ class EscapeHandler : public osgGA::GUIEventHandler
int main(int argc,char** argv)
{
osg::ArgumentParser arguments(&argc, argv);
osgViewer::Viewer viewer;
typedef std::list< osg::ref_ptr<osg::Image> > Images;
Images images;
osgViewer::Viewer viewer(arguments);
std::string hostname;
while (arguments.read("--host",hostname))
osgWidget::GeometryHints hints(osg::Vec3(1.0f,0.0f,0.0f),
osg::Vec3(1.0f,0.0f,0.0f),
osg::Vec3(0.0f,0.0f,1.0f),
osgWidget::GeometryHints::RESIZE_HEIGHT_TO_MAINTAINCE_ASPECT_RATIO);
osg::ref_ptr<osg::Group> group = new osg::Group;
for(int i=1; i<arguments.argc(); ++i)
{
osg::ref_ptr<osg::Image> image = osgDB::readImageFile(hostname+std::string(".vnc"));
if (image.valid()) images.push_back(image.get());
}
if (images.empty())
{
return 1;
if (!arguments.isOption(i))
{
osg::ref_ptr<osgWidget::VncClient> vncClient = new osgWidget::VncClient;
if (vncClient->connect(arguments[i], hints))
{
group->addChild(vncClient.get());
hints.position.x() += 1.1f;
}
}
}
bool xyPlane = false;
osg::Group* group = new osg::Group;
osg::Vec3 origin = osg::Vec3(0.0f,0.0f,0.0f);
for(Images::iterator itr = images.begin();
itr != images.end();
++itr)
{
osg::Image* image = itr->get();
float width = 1.0;
float height = float(image->t())/float(image->s());
osg::Vec3 widthAxis = osg::Vec3(width,0.0f,0.0f);
osg::Vec3 heightAxis = xyPlane ? osg::Vec3(0.0f,height,0.0f) : osg::Vec3(0.0f,0.0f,height);
group->addChild(createInteractiveQuad(origin, widthAxis, heightAxis, image));
origin += widthAxis*1.1f;
}
viewer.setSceneData(group);
viewer.setSceneData(group.get());
viewer.addEventHandler(new osgViewer::StatsHandler);
// add a custom escape handler, but disable the standard viewer one to enable the vnc images to handle
// the escape without it getting caught by the viewer.
viewer.addEventHandler(new EscapeHandler);