fly/flightgear
1
0
Fork 0
Code Activity
flightgear/src/Model/panelnode.cxx
Thomas Geymayer 2520124e97 Update for OpenSceneGraph 3.3.2 API changes.
2014-08-09 19:13:39 +02:00

439 lines
12 KiB
C++
Raw Blame History

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "panelnode.hxx"
#include <vector>
#include <algorithm>
#include <osg/Geode>
#include <osg/Switch>
#include <osg/BlendFunc>
#include <simgear/compiler.h>
#include <simgear/structure/exception.hxx>
#include <simgear/debug/logstream.hxx>
#include <simgear/scene/util/OsgMath.hxx>
#include <simgear/scene/util/SGPickCallback.hxx>
#include <simgear/scene/util/SGSceneUserData.hxx>
#include <simgear/scene/util/SGNodeMasks.hxx>
#include <plib/pu.h>
#include <Main/fg_os.hxx>
#include <Cockpit/panel.hxx>
#include <Cockpit/panel_io.hxx>
#include "Viewer/viewer.hxx"
#include "Viewer/viewmgr.hxx"
using std::vector;
class PanelTransformListener : public SGPropertyChangeListener
{
public:
PanelTransformListener(FGPanelNode* pn) : _panelNode(pn) {}
virtual void valueChanged (SGPropertyNode * node)
{
_panelNode->dirtyBound();
}
private:
FGPanelNode* _panelNode;
};
class PanelPathListener : public SGPropertyChangeListener
{
public:
PanelPathListener(FGPanelNode* pn) : _panelNode(pn) {}
virtual void valueChanged (SGPropertyNode * node)
{
_panelNode->setPanelPath(node->getStringValue());
}
private:
FGPanelNode* _panelNode;
};
class FGPanelPickCallback : public SGPickCallback {
public:
FGPanelPickCallback(FGPanelNode* p) :
panel(p)
{}
virtual bool buttonPressed( int b,
const osgGA::GUIEventAdapter&,
const Info& info )
{
if (!panel->getPanel()) {
return false;
}
button = b;
// convert to panel coordinates
osg::Matrixd m = osg::Matrixd::inverse(panel->transformMatrix());
picked = toOsg(info.local) * m;
SG_LOG( SG_INSTR, SG_DEBUG, "panel pick: " << toSG(picked) );
// send to the panel
return panel->getPanel()->doLocalMouseAction(button, MOUSE_BUTTON_DOWN,
picked.x(), picked.y());
}
virtual void update(double dt, int keyModState)
{
panel->getPanel()->updateMouseDelay(dt);
}
virtual void buttonReleased( int,
const osgGA::GUIEventAdapter&,
const Info* )
{
panel->getPanel()->doLocalMouseAction(button, MOUSE_BUTTON_UP,
picked.x(), picked.y());
}
private:
FGPanelNode* panel;
int button;
osg::Vec3 picked;
};
class FGPanelSwitchCallback : public osg::NodeCallback {
public:
FGPanelSwitchCallback(FGPanelNode* pn) :
panel(pn),
visProp(fgGetNode("/sim/panel/visibility"))
{
}
virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
{
assert(dynamic_cast<osg::Switch*>(node));
osg::Switch* sw = static_cast<osg::Switch*>(node);
if (!visProp->getBoolValue()) {
sw->setValue(0, false);
return;
}
panel->lazyLoad(); // isVisible check needs the panel loaded for auto-hide flag
bool enabled = panel->isVisible2d();
sw->setValue(0, enabled);
if (!enabled)
return;
traverse(node, nv);
}
private:
FGPanelNode* panel;
SGPropertyNode_ptr visProp;
};
FGPanelNode::FGPanelNode(SGPropertyNode* props) :
_is2d(false),
_resizeToViewport(false),
_listener(NULL)
{
commonInit();
_panelPath = props->getStringValue("path");
// And the corner points
SGPropertyNode* pt = props->getChild("bottom-left");
_bottomLeft[0] = pt->getFloatValue("x-m");
_bottomLeft[1] = pt->getFloatValue("y-m");
_bottomLeft[2] = pt->getFloatValue("z-m");
pt = props->getChild("top-left");
_topLeft[0] = pt->getFloatValue("x-m");
_topLeft[1] = pt->getFloatValue("y-m");
_topLeft[2] = pt->getFloatValue("z-m");
pt = props->getChild("bottom-right");
_bottomRight[0] = pt->getFloatValue("x-m");
_bottomRight[1] = pt->getFloatValue("y-m");
_bottomRight[2] = pt->getFloatValue("z-m");
_depthTest = props->getBoolValue("depth-test");
}
FGPanelNode::FGPanelNode() :
_is2d(true),
_resizeToViewport(true),
_depthTest(false)
{
globals->get_commands()->addCommand("panel-mouse-click", this, &FGPanelNode::panelMouseClickCommand);
SGPropertyNode* pathNode = fgGetNode("/sim/panel/path");
_pathListener.reset(new PanelPathListener(this));
pathNode->addChangeListener(_pathListener.get());
setPanelPath(pathNode->getStringValue());
// for a 2D panel, various options adjust the transformation
// matrix. We need to pass this data on to OSG or its bounding box
// will be stale, and picking will break.
// http://code.google.com/p/flightgear-bugs/issues/detail?id=864
_listener = new PanelTransformListener(this);
fgGetNode("/sim/panel/x-offset", true)->addChangeListener(_listener);
fgGetNode("/sim/panel/y-offset", true)->addChangeListener(_listener);
fgGetNode("/sim/startup/xsize", true)->addChangeListener(_listener);
fgGetNode("/sim/startup/ysize", true)->addChangeListener(_listener);
commonInit();
}
FGPanelNode::~FGPanelNode()
{
if (_is2d) {
globals->get_commands()->removeCommand("panel-mouse-click");
SGPropertyNode* pathNode = fgGetNode("/sim/panel/path");
pathNode->removeChangeListener(_pathListener.get());
}
if (_listener) {
fgGetNode("/sim/panel/x-offset", true)->removeChangeListener(_listener);
fgGetNode("/sim/panel/y-offset", true)->removeChangeListener(_listener);
fgGetNode("/sim/startup/xsize", true)->removeChangeListener(_listener);
fgGetNode("/sim/startup/ysize", true)->removeChangeListener(_listener);
delete _listener;
}
}
void FGPanelNode::setPanelPath(const std::string& panel)
{
if (panel == _panelPath) {
return;
}
_panelPath = panel;
if (_panel) {
_panel.clear();
}
}
void FGPanelNode::lazyLoad()
{
if (!_panelPath.empty() && !_panel) {
_panel = fgReadPanel(_panelPath);
if (!_panel) {
SG_LOG(SG_COCKPIT, SG_WARN, "failed to read panel from:" << _panelPath);
_panelPath = std::string(); // don't keep trying to read
return;
}
_panel->setDepthTest(_depthTest);
initWithPanel();
}
}
void FGPanelNode::commonInit()
{
setUseDisplayList(false);
setDataVariance(Object::DYNAMIC);
getOrCreateStateSet()->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
getOrCreateStateSet()->setMode(GL_BLEND, osg::StateAttribute::ON);
}
void FGPanelNode::initWithPanel()
{
int i;
// Read out the pixel-space info
float panelWidth = _panel->getWidth();
float panelHeight = _panel->getHeight();
_panel->getLogicalExtent(_xmin, _ymin, _xmax, _ymax);
// Now generate our transformation matrix. For shorthand, use
// "a", "b", and "c" as our corners and "m" as the matrix. The
// vector u goes from a to b, v from a to c, and w is a
// perpendicular cross product.
osg::Vec3 a = _bottomLeft;
osg::Vec3 b = _bottomRight;
osg::Vec3 c = _topLeft;
osg::Vec3 u = b - a;
osg::Vec3 v = c - a;
osg::Vec3 w = u^v;
osg::Matrix& m = _xform;
if ((u.length2() == 0.0) || (b.length2() == 0.0)) {
m.makeIdentity();
} else {
// Now generate a trivial basis transformation matrix. If we want
// to map the three unit vectors to three arbitrary vectors U, V,
// and W, then those just become the columns of the 3x3 matrix.
m(0,0) = u[0]; m(1,0) = v[0]; m(2,0) = w[0]; m(3,0) = a[0];// |Ux Vx Wx|
m(0,1) = u[1]; m(1,1) = v[1]; m(2,1) = w[1]; m(3,1) = a[1];//m = |Uy Vy Wy|
m(0,2) = u[2]; m(1,2) = v[2]; m(2,2) = w[2]; m(3,2) = a[2];// |Uz Vz Wz|
m(0,3) = 0; m(1,3) = 0; m(2,3) = 0; m(3,3) = 1;
}
// The above matrix maps the unit (!) square to the panel
// rectangle. Postmultiply scaling factors that match the
// pixel-space size of the panel.
for(i=0; i<4; ++i) {
m(0,i) *= 1.0/panelWidth;
m(1,i) *= 1.0/panelHeight;
}
dirtyBound();
}
osg::Matrix FGPanelNode::transformMatrix() const
{
if (!_panel) {
return osg::Matrix();
}
if (!_resizeToViewport) {
return _xform;
}
double s = _panel->getAspectScale();
osg::Matrix m = osg::Matrix::scale(s, s, 1.0);
m *= osg::Matrix::translate(_panel->getXOffset(), _panel->getYOffset(), 0.0);
return m;
}
void
FGPanelNode::drawImplementation(osg::State& state) const
{
if (!_panel) {
return;
}
osg::ref_ptr<osg::RefMatrix> mv = new osg::RefMatrix;
mv->set(transformMatrix() * state.getModelViewMatrix());
state.applyModelViewMatrix(mv.get());
_panel->draw(state);
}
osg::BoundingBox
#if OSG_VERSION_LESS_THAN(3,3,2)
FGPanelNode::computeBound()
#else
FGPanelNode::computeBoundingBox()
#endif
const
{
osg::Vec3 coords[3];
osg::Matrix m(transformMatrix());
coords[0] = m.preMult(osg::Vec3(_xmin,_ymin,0));
coords[1] = m.preMult(osg::Vec3(_xmax,_ymin,0));
coords[2] = m.preMult(osg::Vec3(_xmin,_ymax,0));
osg::BoundingBox bb;
bb.expandBy(coords[0]);
bb.expandBy(coords[1]);
bb.expandBy(coords[2]);
return bb;
}
void FGPanelNode::accept(osg::PrimitiveFunctor& functor) const
{
osg::Vec3 coords[4];
osg::Matrix m(transformMatrix());
coords[0] = m.preMult(osg::Vec3(_xmin,_ymin,0));
coords[1] = m.preMult(osg::Vec3(_xmax,_ymin,0));
coords[2] = m.preMult(osg::Vec3(_xmax, _ymax, 0));
coords[3] = m.preMult(osg::Vec3(_xmin,_ymax,0));
functor.setVertexArray(4, coords);
functor.drawArrays( GL_QUADS, 0, 4);
}
bool FGPanelNode::isVisible2d() const
{
if (!_panel) {
return false;
}
if (!_hideNonDefaultViews) {
_hideNonDefaultViews = fgGetNode("/sim/panel/hide-nonzero-view", true);
}
if (_hideNonDefaultViews->getBoolValue()) {
if (globals->get_viewmgr()->get_current() != 0) {
return false;
}
}
if (!_autoHide2d) {
_autoHide2d = fgGetNode("/sim/panel/hide-nonzero-heading-offset", true);
}
if (_panel->getAutohide() && _autoHide2d->getBoolValue()) {
if (!globals->get_current_view()) {
return false;
}
return globals->get_current_view()->getHeadingOffset_deg() == 0;
}
return true;
}
static osg::Node* createGeode(FGPanelNode* panel)
{
osg::Geode* geode = new osg::Geode;
geode->addDrawable(panel);
geode->setNodeMask(SG_NODEMASK_PICK_BIT | SG_NODEMASK_2DPANEL_BIT);
SGSceneUserData* userData;
userData = SGSceneUserData::getOrCreateSceneUserData(geode);
userData->setPickCallback(new FGPanelPickCallback(panel));
return geode;
}
osg::Node* FGPanelNode::create2DPanelNode()
{
FGPanelNode* drawable = new FGPanelNode;
osg::Switch* ps = new osg::Switch;
osg::StateSet* stateSet = ps->getOrCreateStateSet();
stateSet->setRenderBinDetails(1000, "RenderBin");
ps->addChild(createGeode(drawable));
// speed optimization?
stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
ps->setUpdateCallback(new FGPanelSwitchCallback(drawable));
return ps;
}
osg::Node* FGPanelNode::load(SGPropertyNode *n)
{
FGPanelNode* drawable = new FGPanelNode(n);
drawable->lazyLoad(); // force load now for 2.5D panels
return createGeode(drawable);
}
/**
* Built-in command: pass a mouse click to the panel.
*
* button: the mouse button number, zero-based.
* is-down: true if the button is down, false if it is up.
* x-pos: the x position of the mouse click.
* y-pos: the y position of the mouse click.
*/
bool
FGPanelNode::panelMouseClickCommand(const SGPropertyNode * arg)
{
return _panel->doMouseAction(arg->getIntValue("button"),
arg->getBoolValue("is-down") ? PU_DOWN : PU_UP,
arg->getIntValue("x-pos"),
arg->getIntValue("y-pos"));
}
View git blame Copy permalink