1 // panel.cxx - default, 2D single-engine prop instrument panel
3 // Written by David Megginson, started January 2000.
5 // This program is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU General Public License as
7 // published by the Free Software Foundation; either version 2 of the
8 // License, or (at your option) any later version.
10 // This program is distributed in the hope that it will be useful, but
11 // WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 // General Public License for more details.
15 // You should have received a copy of the GNU General Public License
16 // along with this program; if not, write to the Free Software
17 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
22 // On 2D panels all instruments include light sources were in night displayed
23 // with a red mask (instrument light). It is not correct for light sources
24 // (bulbs). There is added new layer property "emissive" (boolean) (only for
26 // If a layer has to shine set it in the "instrument_def_file.xml" inside the
27 // <layer> tag by adding <emissive>true</emissive> tag. When omitted the default
28 // value is for backward compatibility set to false.
36 #include <stdio.h> // sprintf
40 #include <osg/CullFace>
42 #include <osg/Material>
43 #include <osg/Matrixf>
45 #include <osg/PolygonOffset>
47 #include <simgear/compiler.h>
51 #include <simgear/debug/logstream.hxx>
52 #include <simgear/misc/sg_path.hxx>
53 #include <simgear/scene/model/model.hxx>
56 #include <Main/globals.hxx>
57 #include <Main/fg_props.hxx>
58 #include <Main/viewmgr.hxx>
59 #include <Time/light.hxx>
60 #include <GUI/FGFontCache.hxx>
61 #include <Main/viewer.hxx>
62 #include <Instrumentation/dclgps.hxx>
69 // The number of polygon-offset "units" to place between layers. In
70 // principle, one is supposed to be enough. In practice, I find that
71 // my hardware/driver requires many more.
76 ////////////////////////////////////////////////////////////////////////
78 ////////////////////////////////////////////////////////////////////////
82 * Calculate the aspect adjustment for the panel.
85 get_aspect_adjust (int xsize, int ysize)
87 float ideal_aspect = float(WIN_W) / float(WIN_H);
88 float real_aspect = float(xsize) / float(ysize);
89 return (real_aspect / ideal_aspect);
94 ////////////////////////////////////////////////////////////////////////
96 ////////////////////////////////////////////////////////////////////////
101 const FGPanel* current = globals->get_current_panel();
104 if (current->getVisibility() == 0)
106 if (globals->get_viewmgr()->get_current() != 0)
108 if (current->getAutohide() && globals->get_current_view()->getHeadingOffset_deg() * SGD_DEGREES_TO_RADIANS != 0)
114 ////////////////////////////////////////////////////////////////////////
115 // Implementation of FGTextureManager.
116 ////////////////////////////////////////////////////////////////////////
118 map<string,osg::ref_ptr<osg::Texture2D> > FGTextureManager::_textureMap;
121 FGTextureManager::createTexture (const string &relativePath, bool staticTexture)
123 osg::Texture2D* texture = _textureMap[relativePath].get();
125 SGPath tpath = globals->resolve_aircraft_path(relativePath);
126 texture = SGLoadTexture2D(staticTexture, tpath);
128 _textureMap[relativePath] = texture;
129 if (!_textureMap[relativePath].valid())
130 SG_LOG( SG_COCKPIT, SG_ALERT, "Texture *still* doesn't exist" );
131 SG_LOG( SG_COCKPIT, SG_DEBUG, "Created texture " << relativePath );
138 void FGTextureManager::addTexture(const string &relativePath,
139 osg::Texture2D* texture)
141 _textureMap[relativePath] = texture;
144 ////////////////////////////////////////////////////////////////////////
145 // Implementation of FGCropped Texture.
146 ////////////////////////////////////////////////////////////////////////
149 FGCroppedTexture::FGCroppedTexture ()
150 : _path(""), _texture(0),
151 _minX(0.0), _minY(0.0), _maxX(1.0), _maxY(1.0)
156 FGCroppedTexture::FGCroppedTexture (const string &path,
157 float minX, float minY,
158 float maxX, float maxY)
159 : _path(path), _texture(0),
160 _minX(minX), _minY(minY), _maxX(maxX), _maxY(maxY)
165 FGCroppedTexture::~FGCroppedTexture ()
171 FGCroppedTexture::getTexture ()
174 _texture = new osg::StateSet;
175 _texture->setTextureAttribute(0, FGTextureManager::createTexture(_path));
176 _texture->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::ON);
177 _texture->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
179 return _texture.get();
184 ////////////////////////////////////////////////////////////////////////
185 // Implementation of FGPanel.
186 ////////////////////////////////////////////////////////////////////////
188 static fntRenderer text_renderer;
189 static sgVec4 panel_color;
190 static sgVec4 emissive_panel_color = {1,1,1,1};
198 _width(WIN_W), _height(int(WIN_H * 0.5768 + 1)),
199 _view_height(int(WIN_H * 0.4232)),
200 _visibility(fgGetNode("/sim/panel/visibility", true)),
201 _x_offset(fgGetNode("/sim/panel/x-offset", true)),
202 _y_offset(fgGetNode("/sim/panel/y-offset", true)),
203 _jitter(fgGetNode("/sim/panel/jitter", true)),
204 _flipx(fgGetNode("/sim/panel/flip-x", true)),
205 _xsize_node(fgGetNode("/sim/startup/xsize", true)),
206 _ysize_node(fgGetNode("/sim/startup/ysize", true)),
207 _enable_depth_test(false)
217 for (instrument_list_type::iterator it = _instruments.begin();
218 it != _instruments.end();
227 * Add an instrument to the panel.
230 FGPanel::addInstrument (FGPanelInstrument * instrument)
232 _instruments.push_back(instrument);
237 * Initialize the panel.
246 * Bind panel properties.
251 fgSetArchivable("/sim/panel/visibility");
252 fgSetArchivable("/sim/panel/x-offset");
253 fgSetArchivable("/sim/panel/y-offset");
254 fgSetArchivable("/sim/panel/jitter");
259 * Unbind panel properties.
268 FGPanel::update (double dt)
270 std::cout << "OSGFIXME" << std::endl;
274 FGPanel::update (osg::State& state, GLfloat winx, GLfloat winw, GLfloat winy, GLfloat winh)
277 // Calculate accelerations
278 // and jiggle the panel accordingly
279 // The factors and bounds are just
280 // initial guesses; using sqrt smooths
282 double x_offset = _x_offset->getIntValue();
283 double y_offset = _y_offset->getIntValue();
286 glMatrixMode(GL_PROJECTION);
289 if ( _flipx->getBoolValue() ) {
290 proj = Matrixf::ortho2D(winx + winw, winx, winy + winh, winy); /* up side down */
292 proj = Matrixf::ortho2D(winx, winx + winw, winy, winy + winh); /* right side up */
294 glLoadMatrix(proj.ptr());
296 glMatrixMode(GL_MODELVIEW);
300 glTranslated(x_offset, y_offset, 0);
304 glMatrixMode(GL_PROJECTION);
306 glMatrixMode(GL_MODELVIEW);
314 FGPanel::update (osg::State& state)
316 // Do nothing if the panel isn't visible.
317 if ( !fgPanelVisible() ) {
323 // Now, draw the panel
324 float aspect_adjust = get_aspect_adjust(_xsize_node->getIntValue(),
325 _ysize_node->getIntValue());
326 if (aspect_adjust <1.0)
327 update(state, WIN_X, int(WIN_W * aspect_adjust), WIN_Y, WIN_H);
329 update(state, WIN_X, WIN_W, WIN_Y, int(WIN_H / aspect_adjust));
333 * Handle repeatable mouse events. Called from update() and from
334 * fgUpdate3DPanels(). This functionality needs to move into the
335 * input subsystem. Counting a tick every two frames is clumsy...
337 void FGPanel::updateMouseDelay()
341 if (_mouseDelay < 0) {
342 _mouseInstrument->doMouseAction(_mouseButton, 0, _mouseX, _mouseY);
350 FGPanel::draw(osg::State& state)
352 // In 3D mode, it's possible that we are being drawn exactly on top
353 // of an existing polygon. Use an offset to prevent z-fighting. In
354 // 2D mode, this is a no-op.
355 static osg::ref_ptr<osg::StateSet> panelStateSet;
356 if (!panelStateSet.valid()) {
357 panelStateSet = new osg::StateSet;
358 panelStateSet->setAttributeAndModes(new osg::PolygonOffset(-1, -POFF_UNITS));
359 panelStateSet->setTextureAttribute(0, new osg::TexEnv);
361 // Draw the background
362 panelStateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::ON);
363 panelStateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
364 panelStateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
365 panelStateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
366 osg::Material* material = new osg::Material;
367 material->setColorMode(osg::Material::AMBIENT_AND_DIFFUSE);
368 material->setDiffuse(osg::Material::FRONT_AND_BACK, osg::Vec4(1, 1, 1, 1));
369 material->setAmbient(osg::Material::FRONT_AND_BACK, osg::Vec4(1, 1, 1, 1));
370 material->setSpecular(osg::Material::FRONT_AND_BACK, osg::Vec4(0, 0, 0, 1));
371 material->setEmission(osg::Material::FRONT_AND_BACK, osg::Vec4(0, 0, 0, 1));
372 panelStateSet->setAttribute(material);
373 panelStateSet->setMode(GL_CULL_FACE, osg::StateAttribute::ON);
374 panelStateSet->setAttributeAndModes(new osg::CullFace(osg::CullFace::BACK));
375 panelStateSet->setAttributeAndModes(new osg::Depth(osg::Depth::LEQUAL));
377 if ( _enable_depth_test )
378 panelStateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
380 panelStateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
381 state.pushStateSet(panelStateSet.get());
383 state.setActiveTextureUnit(0);
384 state.setClientActiveTextureUnit(0);
386 FGLight *l = (FGLight *)(globals->get_subsystem("lighting"));
387 sgCopyVec4( panel_color, l->scene_diffuse().data());
388 if ( fgGetDouble("/systems/electrical/outputs/instrument-lights") > 1.0 ) {
389 if ( panel_color[0] < 0.7 ) panel_color[0] = 0.7;
390 if ( panel_color[1] < 0.2 ) panel_color[1] = 0.2;
391 if ( panel_color[2] < 0.2 ) panel_color[2] = 0.2;
393 glColor4fv( panel_color );
395 state.pushStateSet(_bg.get());
397 state.setActiveTextureUnit(0);
398 state.setClientActiveTextureUnit(0);
401 glTexCoord2f(0.0, 0.0); glVertex2f(WIN_X, WIN_Y);
402 glTexCoord2f(1.0, 0.0); glVertex2f(WIN_X + _width, WIN_Y);
403 glTexCoord2f(1.0, 1.0); glVertex2f(WIN_X + _width, WIN_Y + _height);
404 glTexCoord2f(0.0, 1.0); glVertex2f(WIN_X, WIN_Y + _height);
408 state.setActiveTextureUnit(0);
409 state.setClientActiveTextureUnit(0);
412 for (int i = 0; i < 4; i ++) {
413 // top row of textures...(1,3,5,7)
414 state.pushStateSet(_mbg[i*2].get());
416 state.setActiveTextureUnit(0);
417 state.setClientActiveTextureUnit(0);
420 glTexCoord2f(0.0, 0.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y + (_height/2));
421 glTexCoord2f(1.0, 0.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y + (_height/2));
422 glTexCoord2f(1.0, 1.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y + _height);
423 glTexCoord2f(0.0, 1.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y + _height);
427 state.setActiveTextureUnit(0);
428 state.setClientActiveTextureUnit(0);
430 // bottom row of textures...(2,4,6,8)
431 state.pushStateSet(_mbg[i*2+1].get());
433 state.setActiveTextureUnit(0);
434 state.setClientActiveTextureUnit(0);
437 glTexCoord2f(0.0, 0.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y);
438 glTexCoord2f(1.0, 0.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y);
439 glTexCoord2f(1.0, 1.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y + (_height/2));
440 glTexCoord2f(0.0, 1.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y + (_height/2));
444 state.setActiveTextureUnit(0);
445 state.setClientActiveTextureUnit(0);
450 // Draw the instruments.
451 // Syd Adams: added instrument clipping
452 instrument_list_type::const_iterator current = _instruments.begin();
453 instrument_list_type::const_iterator end = _instruments.end();
455 GLdouble blx[4]={1.0,0.0,0.0,0.0};
456 GLdouble bly[4]={0.0,1.0,0.0,0.0};
457 GLdouble urx[4]={-1.0,0.0,0.0,0.0};
458 GLdouble ury[4]={0.0,-1.0,0.0,0.0};
460 for ( ; current != end; current++) {
461 FGPanelInstrument * instr = *current;
463 glTranslated(instr->getXPos(), instr->getYPos(), 0);
465 int ix= instr->getWidth();
466 int iy= instr->getHeight();
468 glTranslated(-ix/2,-iy/2,0);
469 glClipPlane(GL_CLIP_PLANE0,blx);
470 glClipPlane(GL_CLIP_PLANE1,bly);
471 glEnable(GL_CLIP_PLANE0);
472 glEnable(GL_CLIP_PLANE1);
474 glTranslated(ix,iy,0);
475 glClipPlane(GL_CLIP_PLANE2,urx);
476 glClipPlane(GL_CLIP_PLANE3,ury);
477 glEnable(GL_CLIP_PLANE2);
478 glEnable(GL_CLIP_PLANE3);
485 glDisable(GL_CLIP_PLANE0);
486 glDisable(GL_CLIP_PLANE1);
487 glDisable(GL_CLIP_PLANE2);
488 glDisable(GL_CLIP_PLANE3);
492 state.setActiveTextureUnit(0);
493 state.setClientActiveTextureUnit(0);
496 // Draw yellow "hotspots" if directed to. This is a panel authoring
497 // feature; not intended to be high performance or to look good.
498 if ( fgGetBool("/sim/panel-hotspots") ) {
499 static osg::ref_ptr<osg::StateSet> hotspotStateSet;
500 if (!hotspotStateSet.valid()) {
501 hotspotStateSet = new osg::StateSet;
502 hotspotStateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
503 hotspotStateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
506 state.pushStateSet(hotspotStateSet.get());
508 state.setActiveTextureUnit(0);
509 state.setClientActiveTextureUnit(0);
512 glPushAttrib(GL_ENABLE_BIT);
513 glDisable(GL_COLOR_MATERIAL);
516 for ( unsigned int i = 0; i < _instruments.size(); i++ )
517 _instruments[i]->drawHotspots(state);
523 state.setActiveTextureUnit(0);
524 state.setClientActiveTextureUnit(0);
530 * Set the panel's visibility.
533 FGPanel::setVisibility (bool visibility)
535 _visibility->setBoolValue( visibility );
540 * Return true if the panel is visible.
543 FGPanel::getVisibility () const
545 return _visibility->getBoolValue();
550 * Set the panel's background texture.
553 FGPanel::setBackground (osg::Texture2D* texture)
555 osg::StateSet* stateSet = new osg::StateSet;
556 stateSet->setTextureAttribute(0, texture);
557 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::ON);
558 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
563 * Set the panel's multiple background textures.
566 FGPanel::setMultiBackground (osg::Texture2D* texture, int idx)
570 osg::StateSet* stateSet = new osg::StateSet;
571 stateSet->setTextureAttribute(0, texture);
572 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::ON);
573 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
574 _mbg[idx] = stateSet;
578 * Set the panel's x-offset.
581 FGPanel::setXOffset (int offset)
583 if (offset <= 0 && offset >= -_width + WIN_W)
584 _x_offset->setIntValue( offset );
589 * Set the panel's y-offset.
592 FGPanel::setYOffset (int offset)
594 if (offset <= 0 && offset >= -_height)
595 _y_offset->setIntValue( offset );
599 * Handle a mouse action in panel-local (not screen) coordinates.
600 * Used by the 3D panel code in Model/panelnode.cxx, in situations
601 * where the panel doesn't control its own screen location.
604 FGPanel::doLocalMouseAction(int button, int updown, int x, int y)
606 // Note a released button and return
608 if (_mouseInstrument != 0)
609 _mouseInstrument->doMouseAction(_mouseButton, 1, _mouseX, _mouseY);
611 _mouseInstrument = 0;
615 // Search for a matching instrument.
616 for (int i = 0; i < (int)_instruments.size(); i++) {
617 FGPanelInstrument *inst = _instruments[i];
618 int ix = inst->getXPos();
619 int iy = inst->getYPos();
620 int iw = inst->getWidth() / 2;
621 int ih = inst->getHeight() / 2;
622 if (x >= ix - iw && x < ix + iw && y >= iy - ih && y < iy + ih) {
625 _mouseInstrument = inst;
626 _mouseButton = button;
629 // Always do the action once.
630 return _mouseInstrument->doMouseAction(_mouseButton, 0,
638 * Perform a mouse action.
641 FGPanel::doMouseAction (int button, int updown, int x, int y)
643 // FIXME: this same code appears in update()
644 int xsize = _xsize_node->getIntValue();
645 int ysize = _ysize_node->getIntValue();
646 float aspect_adjust = get_aspect_adjust(xsize, ysize);
648 // Scale for the real window size.
649 if (aspect_adjust < 1.0) {
650 x = int(((float)x / xsize) * WIN_W * aspect_adjust);
651 y = int(WIN_H - ((float(y) / ysize) * WIN_H));
653 x = int(((float)x / xsize) * WIN_W);
654 y = int((WIN_H - ((float(y) / ysize) * WIN_H)) / aspect_adjust);
657 // Adjust for offsets.
658 x -= _x_offset->getIntValue();
659 y -= _y_offset->getIntValue();
661 // Having fixed up the coordinates, fall through to the local
662 // coordinate handler.
663 return doLocalMouseAction(button, updown, x, y);
666 void FGPanel::setDepthTest (bool enable) {
667 _enable_depth_test = enable;
672 ////////////////////////////////////////////////////////////////////////.
673 // Implementation of FGPanelAction.
674 ////////////////////////////////////////////////////////////////////////
676 FGPanelAction::FGPanelAction ()
680 FGPanelAction::FGPanelAction (int button, int x, int y, int w, int h,
682 : _button(button), _x(x), _y(y), _w(w), _h(h), _repeatable(repeatable)
686 FGPanelAction::~FGPanelAction ()
688 for (unsigned int i = 0; i < 2; i++) {
689 for (unsigned int j = 0; j < _bindings[i].size(); j++)
690 delete _bindings[i][j];
695 FGPanelAction::addBinding (SGBinding * binding, int updown)
697 _bindings[updown].push_back(binding);
701 FGPanelAction::doAction (int updown)
704 if ((updown != _last_state) || (updown == 0 && _repeatable)) {
705 int nBindings = _bindings[updown].size();
706 for (int i = 0; i < nBindings; i++)
707 _bindings[updown][i]->fire();
709 _last_state = updown;
718 ////////////////////////////////////////////////////////////////////////
719 // Implementation of FGPanelTransformation.
720 ////////////////////////////////////////////////////////////////////////
722 FGPanelTransformation::FGPanelTransformation ()
727 FGPanelTransformation::~FGPanelTransformation ()
734 ////////////////////////////////////////////////////////////////////////
735 // Implementation of FGPanelInstrument.
736 ////////////////////////////////////////////////////////////////////////
739 FGPanelInstrument::FGPanelInstrument ()
745 FGPanelInstrument::FGPanelInstrument (int x, int y, int w, int h)
751 FGPanelInstrument::~FGPanelInstrument ()
753 for (action_list_type::iterator it = _actions.begin();
754 it != _actions.end();
762 FGPanelInstrument::drawHotspots(osg::State& state)
764 for ( unsigned int i = 0; i < _actions.size(); i++ ) {
765 FGPanelAction* a = _actions[i];
766 float x1 = getXPos() + a->getX();
767 float x2 = x1 + a->getWidth();
768 float y1 = getYPos() + a->getY();
769 float y2 = y1 + a->getHeight();
771 glBegin(GL_LINE_LOOP);
781 FGPanelInstrument::setPosition (int x, int y)
788 FGPanelInstrument::setSize (int w, int h)
795 FGPanelInstrument::getXPos () const
801 FGPanelInstrument::getYPos () const
807 FGPanelInstrument::getWidth () const
813 FGPanelInstrument::getHeight () const
819 FGPanelInstrument::addAction (FGPanelAction * action)
821 _actions.push_back(action);
824 // Coordinates relative to centre.
826 FGPanelInstrument::doMouseAction (int button, int updown, int x, int y)
829 action_list_type::iterator it = _actions.begin();
830 action_list_type::iterator last = _actions.end();
831 for ( ; it != last; it++) {
832 if ((*it)->inArea(button, x, y) &&
833 (*it)->doAction(updown))
842 ////////////////////////////////////////////////////////////////////////
843 // Implementation of FGLayeredInstrument.
844 ////////////////////////////////////////////////////////////////////////
846 FGLayeredInstrument::FGLayeredInstrument (int x, int y, int w, int h)
847 : FGPanelInstrument(x, y, w, h)
851 FGLayeredInstrument::~FGLayeredInstrument ()
853 for (layer_list::iterator it = _layers.begin(); it != _layers.end(); it++) {
860 FGLayeredInstrument::draw (osg::State& state)
865 for (int i = 0; i < (int)_layers.size(); i++) {
867 _layers[i]->draw(state);
873 FGLayeredInstrument::addLayer (FGInstrumentLayer *layer)
875 int n = _layers.size();
876 if (layer->getWidth() == -1) {
877 layer->setWidth(getWidth());
879 if (layer->getHeight() == -1) {
880 layer->setHeight(getHeight());
882 _layers.push_back(layer);
887 FGLayeredInstrument::addLayer (const FGCroppedTexture &texture,
890 return addLayer(new FGTexturedLayer(texture, w, h));
894 FGLayeredInstrument::addTransformation (FGPanelTransformation * transformation)
896 int layer = _layers.size() - 1;
897 _layers[layer]->addTransformation(transformation);
902 ////////////////////////////////////////////////////////////////////////
903 // Implementation of FGSpecialInstrument.
904 ////////////////////////////////////////////////////////////////////////
906 FGSpecialInstrument::FGSpecialInstrument (DCLGPS* sb)
907 : FGPanelInstrument()
912 FGSpecialInstrument::~FGSpecialInstrument ()
917 FGSpecialInstrument::draw (osg::State& state)
919 complex->draw(state);
924 ////////////////////////////////////////////////////////////////////////
925 // Implementation of FGInstrumentLayer.
926 ////////////////////////////////////////////////////////////////////////
928 FGInstrumentLayer::FGInstrumentLayer (int w, int h)
934 FGInstrumentLayer::~FGInstrumentLayer ()
936 for (transformation_list::iterator it = _transformations.begin();
937 it != _transformations.end();
945 FGInstrumentLayer::transform () const
947 transformation_list::const_iterator it = _transformations.begin();
948 transformation_list::const_iterator last = _transformations.end();
950 FGPanelTransformation *t = *it;
952 float val = (t->node == 0 ? 0.0 : t->node->getFloatValue());
955 val = fmod(val, t->mod);
958 } else if (val > t->max) {
963 val = val * t->factor + t->offset;
965 val = t->table->interpolate(val) * t->factor + t->offset;
969 case FGPanelTransformation::XSHIFT:
970 glTranslatef(val, 0.0, 0.0);
972 case FGPanelTransformation::YSHIFT:
973 glTranslatef(0.0, val, 0.0);
975 case FGPanelTransformation::ROTATION:
976 glRotatef(-val, 0.0, 0.0, 1.0);
985 FGInstrumentLayer::addTransformation (FGPanelTransformation * transformation)
987 _transformations.push_back(transformation);
992 ////////////////////////////////////////////////////////////////////////
993 // Implementation of FGGroupLayer.
994 ////////////////////////////////////////////////////////////////////////
996 FGGroupLayer::FGGroupLayer ()
1000 FGGroupLayer::~FGGroupLayer ()
1002 for (unsigned int i = 0; i < _layers.size(); i++)
1007 FGGroupLayer::draw (osg::State& state)
1011 int nLayers = _layers.size();
1012 for (int i = 0; i < nLayers; i++)
1013 _layers[i]->draw(state);
1018 FGGroupLayer::addLayer (FGInstrumentLayer * layer)
1020 _layers.push_back(layer);
1025 ////////////////////////////////////////////////////////////////////////
1026 // Implementation of FGTexturedLayer.
1027 ////////////////////////////////////////////////////////////////////////
1030 FGTexturedLayer::FGTexturedLayer (const FGCroppedTexture &texture, int w, int h)
1031 : FGInstrumentLayer(w, h),
1034 setTexture(texture);
1038 FGTexturedLayer::~FGTexturedLayer ()
1044 FGTexturedLayer::draw (osg::State& state)
1051 state.pushStateSet(_texture.getTexture());
1053 state.setActiveTextureUnit(0);
1054 state.setClientActiveTextureUnit(0);
1056 glBegin(GL_POLYGON);
1059 glColor4fv( emissive_panel_color );
1061 // From Curt: turn on the panel
1062 // lights after sundown.
1063 glColor4fv( panel_color );
1066 glTexCoord2f(_texture.getMinX(), _texture.getMinY()); glVertex2f(-w2, -h2);
1067 glTexCoord2f(_texture.getMaxX(), _texture.getMinY()); glVertex2f(w2, -h2);
1068 glTexCoord2f(_texture.getMaxX(), _texture.getMaxY()); glVertex2f(w2, h2);
1069 glTexCoord2f(_texture.getMinX(), _texture.getMaxY()); glVertex2f(-w2, h2);
1071 state.popStateSet();
1073 state.setActiveTextureUnit(0);
1074 state.setClientActiveTextureUnit(0);
1081 ////////////////////////////////////////////////////////////////////////
1082 // Implementation of FGTextLayer.
1083 ////////////////////////////////////////////////////////////////////////
1085 FGTextLayer::FGTextLayer (int w, int h)
1086 : FGInstrumentLayer(w, h), _pointSize(14.0), _font_name("Helvetica.txf")
1089 _color[0] = _color[1] = _color[2] = 0.0;
1093 FGTextLayer::~FGTextLayer ()
1095 chunk_list::iterator it = _chunks.begin();
1096 chunk_list::iterator last = _chunks.end();
1097 for ( ; it != last; it++) {
1103 FGTextLayer::draw (osg::State& state)
1109 FGFontCache *fc = globals->get_fontcache();
1110 fntFont* font = fc->getTexFont(_font_name.c_str());
1112 return; // don't crash on missing fonts
1115 text_renderer.setFont(font);
1117 text_renderer.setPointSize(_pointSize);
1118 text_renderer.begin();
1119 text_renderer.start3f(0, 0, 0);
1122 double diff = (_now - _then).toUSecs();
1124 if (diff > 100000 || diff < 0 ) {
1125 // ( diff < 0 ) is a sanity check and indicates our time stamp
1126 // difference math probably overflowed. We can handle a max
1127 // difference of 35.8 minutes since the returned value is in
1128 // usec. So if the panel is left off longer than that we can
1129 // over flow the math with it is turned back on. This (diff <
1130 // 0) catches that situation, get's us out of trouble, and
1136 // Something is goofy. The code in this file renders only CCW
1137 // polygons, and I have verified that the font code in plib
1138 // renders only CCW trianbles. Yet they come out backwards.
1139 // Something around here or in plib is either changing the winding
1140 // order or (more likely) pushing a left-handed matrix onto the
1141 // stack. But I can't find it; get out the chainsaw...
1143 text_renderer.puts((char *)(_value.c_str()));
1144 glFrontFace(GL_CCW);
1146 text_renderer.end();
1147 glColor4f(1.0, 1.0, 1.0, 1.0); // FIXME
1152 FGTextLayer::addChunk (FGTextLayer::Chunk * chunk)
1154 _chunks.push_back(chunk);
1158 FGTextLayer::setColor (float r, float g, float b)
1167 FGTextLayer::setPointSize (float size)
1173 FGTextLayer::setFontName(const string &name)
1175 _font_name = name + ".txf";
1176 FGFontCache *fc = globals->get_fontcache();
1177 fntFont* font = fc->getTexFont(_font_name.c_str());
1179 SG_LOG(SG_COCKPIT, SG_WARN, "unable to find font:" << name);
1185 FGTextLayer::setFont(fntFont * font)
1187 text_renderer.setFont(font);
1192 FGTextLayer::recalc_value () const
1195 chunk_list::const_iterator it = _chunks.begin();
1196 chunk_list::const_iterator last = _chunks.end();
1197 for ( ; it != last; it++) {
1198 _value += (*it)->getValue();
1204 ////////////////////////////////////////////////////////////////////////
1205 // Implementation of FGTextLayer::Chunk.
1206 ////////////////////////////////////////////////////////////////////////
1208 FGTextLayer::Chunk::Chunk (const string &text, const string &fmt)
1209 : _type(FGTextLayer::TEXT), _fmt(fmt)
1216 FGTextLayer::Chunk::Chunk (ChunkType type, const SGPropertyNode * node,
1217 const string &fmt, float mult, float offs,
1219 : _type(type), _fmt(fmt), _mult(mult), _offs(offs), _trunc(truncation)
1222 if (type == TEXT_VALUE)
1231 FGTextLayer::Chunk::getValue () const
1237 sprintf(_buf, _fmt.c_str(), _text.c_str());
1240 sprintf(_buf, _fmt.c_str(), _node->getStringValue());
1243 double d = _offs + _node->getFloatValue() * _mult;
1244 if (_trunc) d = (d < 0) ? -floor(-d) : floor(d);
1245 sprintf(_buf, _fmt.c_str(), d);
1256 ////////////////////////////////////////////////////////////////////////
1257 // Implementation of FGSwitchLayer.
1258 ////////////////////////////////////////////////////////////////////////
1260 FGSwitchLayer::FGSwitchLayer ()
1266 FGSwitchLayer::draw (osg::State& state)
1270 int nLayers = _layers.size();
1271 for (int i = 0; i < nLayers; i++) {
1272 if (_layers[i]->test()) {
1273 _layers[i]->draw(state);