3006bb14f4
class to encapsulate the pixel coords, SceneView and picking operations in prep for making the code more general purpose, and less reliant on classes like osgUtil::SceneView and osgUtil::IntersectVisitor.
105 lines
3.6 KiB
C++
105 lines
3.6 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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//osgManipulator - Copyright (C) 2007 Fugro-Jason B.V.
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#include <osgManipulator/TranslatePlaneDragger>
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#include <osg/ShapeDrawable>
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#include <osg/Geometry>
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#include <osg/LineWidth>
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#include <osg/Quat>
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#include <osg/PolygonMode>
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#include <osg/CullFace>
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#include <osg/AutoTransform>
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using namespace osgManipulator;
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TranslatePlaneDragger::TranslatePlaneDragger() : _usingTranslate1DDragger(false)
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{
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_translate2DDragger = new Translate2DDragger();
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_translate2DDragger->setColor(osg::Vec4(0.7f, 0.7f, 0.7f, 1.0f));
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addChild(_translate2DDragger.get());
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addDragger(_translate2DDragger.get());
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_translate1DDragger = new Translate1DDragger(osg::Vec3(0.0f,0.0f,0.0f),osg::Vec3(0.0f,1.0f,0.0f));
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_translate1DDragger->setCheckForNodeInNodePath(false);
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addChild(_translate1DDragger.get());
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addDragger(_translate1DDragger.get());
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setParentDragger(getParentDragger());
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}
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TranslatePlaneDragger::~TranslatePlaneDragger()
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{
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}
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bool TranslatePlaneDragger::handle(const PointerInfo& pointer, const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa)
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{
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// Check if the dragger node is in the nodepath.
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if (!pointer.contains(this)) return false;
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if ((ea.getButtonMask() & osgGA::GUIEventAdapter::MIDDLE_MOUSE_BUTTON) &&
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ea.getEventType() == osgGA::GUIEventAdapter::PUSH)
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_usingTranslate1DDragger = true;
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bool handled = false;
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if (_usingTranslate1DDragger)
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{
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if (_translate1DDragger->handle(pointer, ea, aa))
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handled = true;
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}
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else
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{
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if (_translate2DDragger->handle(pointer, ea, aa))
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handled = true;
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}
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if (ea.getEventType() == osgGA::GUIEventAdapter::RELEASE)
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_usingTranslate1DDragger = false;
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return handled;
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}
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void TranslatePlaneDragger::setupDefaultGeometry()
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{
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// Create a polygon.
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{
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osg::Geode* geode = new osg::Geode;
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osg::Geometry* geometry = new osg::Geometry();
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osg::Vec3Array* vertices = new osg::Vec3Array(4);
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(*vertices)[0] = osg::Vec3(-0.5,0.0,0.5);
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(*vertices)[1] = osg::Vec3(-0.5,0.0,-0.5);
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(*vertices)[2] = osg::Vec3(0.5,0.0,-0.5);
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(*vertices)[3] = osg::Vec3(0.5,0.0,0.5);
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geometry->setVertexArray(vertices);
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geometry->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUADS,0,vertices->size()));
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osg::Vec3Array* normals = new osg::Vec3Array;
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normals->push_back(osg::Vec3(0.0,1.0,0.0));
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geometry->setNormalArray(normals);
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geometry->setNormalBinding(osg::Geometry::BIND_OVERALL);
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geode->addDrawable(geometry);
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osg::PolygonMode* polymode = new osg::PolygonMode;
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polymode->setMode(osg::PolygonMode::FRONT_AND_BACK,osg::PolygonMode::LINE);
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geode->getOrCreateStateSet()->setAttributeAndModes(polymode,osg::StateAttribute::OVERRIDE|osg::StateAttribute::ON);
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geode->getOrCreateStateSet()->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
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_translate2DDragger->addChild(geode);
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}
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}
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