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Moved experimental Widget class to osgGA

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Add computeIntersections() to the osgGA::GUIActionAdapter base class to enable intersection tests without needing to directly link to osgViewer.
This commit is contained in:
Robert Osfield 2014-02-06 17:32:41 +00:00
parent 958a7d0ab0
commit 4016aed62d
6 changed files with 24 additions and 16 deletions
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1
examples/osgtransferfunction/CMakeLists.txt
View File

@ -1,5 +1,4 @@
SET(TARGET_SRC
Widget.cpp
TransferFunctionWidget.cpp
osgtransferfunction.cpp
)

4
examples/osgtransferfunction/TransferFunctionWidget.h
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@ -17,14 +17,14 @@
#include <osg/Group>
#include <osg/TransferFunction>
#include "Widget.h"
#include <osgGA/Widget>
#define OSGUI_EXPORT
namespace osgUI
{
class OSGUI_EXPORT TransferFunctionWidget : public osgUI::Widget
class OSGUI_EXPORT TransferFunctionWidget : public osgGA::Widget
{
public:
TransferFunctionWidget(osg::TransferFunction1D* tf=0);

8
include/osgGA/GUIActionAdapter
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@ -16,6 +16,7 @@
#include <osgGA/Export>
#include <osg/View>
#include <osgUtil/LineSegmentIntersector>
namespace osgGA{
@ -83,6 +84,13 @@ public:
*/
virtual void requestWarpPointer(float x,float y) = 0;
/** Compute intersections of a ray, starting the current mouse position, through the specified camera. */
virtual bool computeIntersections(const osgGA::GUIEventAdapter& /*ea*/, osgUtil::LineSegmentIntersector::Intersections& /*intersections*/,osg::Node::NodeMask /*traversalMask*/ = 0xffffffff) { return false; }
/** Compute intersections of a ray, starting the current mouse position, through the specified master camera's window/eye coordinates and a specified nodePath's subgraph. */
virtual bool computeIntersections(const osgGA::GUIEventAdapter& /*ea*/, const osg::NodePath& /*nodePath*/, osgUtil::LineSegmentIntersector::Intersections& /*intersections*/,osg::Node::NodeMask /*traversalMask*/ = 0xffffffff) { return false; }
};
}

2
examples/osgtransferfunction/Widget.h → include/osgGA/Widget
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@ -21,7 +21,7 @@
#define OSGUI_EXPORT
namespace osgUI
namespace osgGA
{
class OSGUI_EXPORT Widget : public osg::Group

4
src/osgGA/CMakeLists.txt
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@ -9,6 +9,7 @@ SET(LIB_NAME osgGA)
SET(HEADER_PATH ${OpenSceneGraph_SOURCE_DIR}/include/${LIB_NAME})
SET(TARGET_H
${HEADER_PATH}/AnimationPathManipulator
${HEADER_PATH}/CameraViewSwitchManipulator
${HEADER_PATH}/DriveManipulator
${HEADER_PATH}/Device
${HEADER_PATH}/Event
@ -32,8 +33,8 @@ SET(TARGET_H
${HEADER_PATH}/TerrainManipulator
${HEADER_PATH}/TrackballManipulator
${HEADER_PATH}/UFOManipulator
${HEADER_PATH}/Widget
${HEADER_PATH}/Version
${HEADER_PATH}/CameraViewSwitchManipulator
)
SET(TARGET_SRC
@ -59,6 +60,7 @@ SET(TARGET_SRC
TerrainManipulator.cpp
TrackballManipulator.cpp
UFOManipulator.cpp
Widget.cpp
Version.cpp
CameraViewSwitchManipulator.cpp
${OPENSCENEGRAPH_VERSIONINFO_RC}

21
examples/osgtransferfunction/Widget.cpp → src/osgGA/Widget.cpp
View File

@ -11,7 +11,6 @@
* OpenSceneGraph Public License for more details.
*/
#include "Widget.h"
#include <osg/Geode>
#include <osg/ScriptEngine>
@ -19,10 +18,11 @@
#include <osg/MatrixTransform>
#include <osg/io_utils>
#include <osgGA/Widget>
#include <osgGA/EventVisitor>
#include <osgViewer/View>
#include <osgGA/GUIActionAdapter>
using namespace osgUI;
using namespace osgGA;
Widget::Widget():
_focusBehaviour(FOCUS_FOLLOWS_POINTER),
@ -50,8 +50,8 @@ void Widget::setExtents(const osg::BoundingBox& bb)
void Widget::updateFocus(osg::NodeVisitor& nv)
{
osgGA::EventVisitor* ev = dynamic_cast<osgGA::EventVisitor*>(&nv);
osgViewer::View* view = ev ? dynamic_cast<osgViewer::View*>(ev->getActionAdapter()) : 0;
if (ev && view)
osgGA::GUIActionAdapter* aa = ev ? ev->getActionAdapter() : 0;
if (ev && aa)
{
osgGA::EventQueue::Events& events = ev->getEvents();
for(osgGA::EventQueue::Events::iterator itr = events.begin();
@ -74,7 +74,7 @@ void Widget::updateFocus(osg::NodeVisitor& nv)
if (numButtonsPressed==1)
{
osgUtil::LineSegmentIntersector::Intersections intersections;
bool withinWidget = view->computeIntersections(*ea, nv.getNodePath(), intersections);
bool withinWidget = aa->computeIntersections(*ea, nv.getNodePath(), intersections);
if (withinWidget) _hasEventFocus = true;
else _hasEventFocus = false;
}
@ -104,7 +104,7 @@ void Widget::updateFocus(osg::NodeVisitor& nv)
if (checkWithinWidget)
{
osgUtil::LineSegmentIntersector::Intersections intersections;
bool withinWidget = view->computeIntersections(*ea, nv.getNodePath(), intersections);
bool withinWidget = aa->computeIntersections(*ea, nv.getNodePath(), intersections);
_hasEventFocus = withinWidget;
}
@ -205,8 +205,7 @@ void Widget::traverseImplementation(osg::NodeVisitor& nv)
if (!_graphicsInitialized && nv.getVisitorType()!=osg::NodeVisitor::CULL_VISITOR) createGraphics();
osgGA::EventVisitor* ev = dynamic_cast<osgGA::EventVisitor*>(&nv);
osgViewer::View* view = ev ? dynamic_cast<osgViewer::View*>(ev->getActionAdapter()) : 0;
if (ev && view)
if (ev)
{
updateFocus(nv);
@ -263,9 +262,9 @@ bool Widget::handleImplementation(osgGA::EventVisitor* /*ev*/, osgGA::Event* /*e
bool Widget::computePositionInLocalCoordinates(osgGA::EventVisitor* ev, osgGA::GUIEventAdapter* event, osg::Vec3& localPosition) const
{
osgViewer::View* view = ev ? dynamic_cast<osgViewer::View*>(ev->getActionAdapter()) : 0;
osgGA::GUIActionAdapter* aa = ev ? ev->getActionAdapter() : 0;
osgUtil::LineSegmentIntersector::Intersections intersections;
if (view && view->computeIntersections(*event, ev->getNodePath(), intersections))
if (aa && aa->computeIntersections(*event, ev->getNodePath(), intersections))
{
localPosition = intersections.begin()->getLocalIntersectPoint();