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// -*-c++-*- osgWidget - Code by: Jeremy Moles (cubicool) 2007-2008
// $Id: osgwidgetshader.cpp 28 2008-03-26 15:26:48Z cubicool $
#include <osgDB/FileUtils>
#include <osgWidget/Util>
#include <osgWidget/WindowManager>
#include <osgWidget/Canvas>
const unsigned int MASK_2D = 0xF0000000;
osgWidget::Widget* createWidget(
const std::string& name,
osgWidget::color_type col,
osgWidget::Widget::Layer layer
) {
osgWidget::Widget* widget = new osgWidget::Widget(name, 200.0f, 200.0f);
widget->setColor(col, col, col, 0.2f);
widget->setLayer(layer);
return widget;
}
int main(int argc, char** argv) {
osgViewer::Viewer viewer;
osgWidget::WindowManager* wm = new osgWidget::WindowManager(
&viewer,
1280.0f,
1024.0f,
MASK_2D
);
osgWidget::Canvas* canvas = new osgWidget::Canvas("canvas");
canvas->attachMoveCallback();
canvas->attachScaleCallback();
canvas->addWidget(
createWidget("w1", 0.2f, osgWidget::Widget::LAYER_LOW),
0.0f,
0.0f
);
canvas->addWidget(
createWidget("w2", 0.4f, osgWidget::Widget::LAYER_MIDDLE),
200.0f,
0.0f
);
canvas->addWidget(
createWidget("w3", 0.6f, osgWidget::Widget::LAYER_HIGH),
400.0f,
0.0f
);
wm->addChild(canvas);
osg::Program* program = new osg::Program();
program->addShader(osg::Shader::readShaderFile(
osg::Shader::VERTEX,
osgDB::findDataFile("osgWidget/osgwidgetshader-vert.glsl")
));
program->addShader(osg::Shader::readShaderFile(
osg::Shader::FRAGMENT,
osgDB::findDataFile("osgWidget/osgwidgetshader-frag.glsl")
));
canvas->getGeode()->getOrCreateStateSet()->setAttribute(program);
return osgWidget::createExample(viewer, wm);
}
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