WebGLDemo::WebGLDemo(const WEnvironment& env)
: WApplication(env)
{
setTitle("WebGL Demo");
root()->addWidget(new WText("This is a preliminary WebGL demo. It will "
"become more spectacular in time. This technology preview has only "
"been tested on Chrome Canary builds. No 3D because I did "
"not yet invest in 3D projection matrices."));
root()->addWidget(new WBreak());
PaintWidget *gl = new PaintWidget(root());
gl->resize(640, 640);
}
void WebGLDemo::updateShaders()
{
// check if binary buffers are enabled
// i.e. if your application url is "webgl" on localhost:8080, use this to enable binary buffers:
// localhost:8080/webgl?binaryBuffers
// query given URL arguments...
Http::ParameterValues pv = wApp->environment().getParameterValues("binaryBuffers");
bool useBinaryBuffers = false;
if (!pv.empty())
{
useBinaryBuffers = true;
}
delete paintWidget_;
paintWidget_ = new PaintWidget(glContainer_, useBinaryBuffers);
paintWidget_->resize(500, 500);
paintWidget_->setShaders(vertexShaderText_->text().toUTF8(),
fragmentShaderText_->text().toUTF8());
paintWidget_->setAlternativeContent(new WImage("nowebgl.png"));
}