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.
38 #include <stdio.h> // sprintf
41 #include <osg/CullFace>
43 #include <osg/Material>
45 #include <osg/PolygonOffset>
47 #include <simgear/compiler.h>
53 #include <simgear/debug/logstream.hxx>
54 #include <simgear/misc/sg_path.hxx>
55 #include <simgear/scene/model/model.hxx>
57 #include <Main/globals.hxx>
58 #include <Main/fg_props.hxx>
59 #include <Main/viewmgr.hxx>
60 #include <Time/light.hxx>
61 #include <GUI/new_gui.hxx> // FGFontCache
71 // The number of polygon-offset "units" to place between layers. In
72 // principle, one is supposed to be enough. In practice, I find that
73 // 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 SG_LOG( SG_COCKPIT, SG_DEBUG,
126 "Texture " << relativePath << " does not yet exist" );
127 SGPath tpath(globals->get_fg_root());
128 tpath.append(relativePath);
130 texture = SGLoadTexture2D(staticTexture, tpath);
132 _textureMap[relativePath] = texture;
133 if (!_textureMap[relativePath].valid())
134 SG_LOG( SG_COCKPIT, SG_ALERT, "Texture *still* doesn't exist" );
135 SG_LOG( SG_COCKPIT, SG_DEBUG, "Created texture " << relativePath );
142 void FGTextureManager::addTexture(const string &relativePath,
143 osg::Texture2D* texture)
145 _textureMap[relativePath] = texture;
148 ////////////////////////////////////////////////////////////////////////
149 // Implementation of FGCropped Texture.
150 ////////////////////////////////////////////////////////////////////////
153 FGCroppedTexture::FGCroppedTexture ()
154 : _path(""), _texture(0),
155 _minX(0.0), _minY(0.0), _maxX(1.0), _maxY(1.0)
160 FGCroppedTexture::FGCroppedTexture (const string &path,
161 float minX, float minY,
162 float maxX, float maxY)
163 : _path(path), _texture(0),
164 _minX(minX), _minY(minY), _maxX(maxX), _maxY(maxY)
169 FGCroppedTexture::~FGCroppedTexture ()
175 FGCroppedTexture::getTexture ()
178 _texture = new osg::StateSet;
179 _texture->setTextureAttribute(0, FGTextureManager::createTexture(_path));
180 _texture->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::ON);
181 _texture->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
183 return _texture.get();
188 ////////////////////////////////////////////////////////////////////////
189 // Implementation of FGPanel.
190 ////////////////////////////////////////////////////////////////////////
192 static fntRenderer text_renderer;
193 static sgVec4 panel_color;
194 static sgVec4 emissive_panel_color = {1,1,1,1};
202 _width(WIN_W), _height(int(WIN_H * 0.5768 + 1)),
203 _view_height(int(WIN_H * 0.4232)),
204 _visibility(fgGetNode("/sim/panel/visibility", true)),
205 _x_offset(fgGetNode("/sim/panel/x-offset", true)),
206 _y_offset(fgGetNode("/sim/panel/y-offset", true)),
207 _jitter(fgGetNode("/sim/panel/jitter", true)),
208 _flipx(fgGetNode("/sim/panel/flip-x", true)),
209 _xsize_node(fgGetNode("/sim/startup/xsize", true)),
210 _ysize_node(fgGetNode("/sim/startup/ysize", true)),
211 _enable_depth_test(false)
221 for (instrument_list_type::iterator it = _instruments.begin();
222 it != _instruments.end();
231 * Add an instrument to the panel.
234 FGPanel::addInstrument (FGPanelInstrument * instrument)
236 _instruments.push_back(instrument);
241 * Initialize the panel.
250 * Bind panel properties.
255 fgSetArchivable("/sim/panel/visibility");
256 fgSetArchivable("/sim/panel/x-offset");
257 fgSetArchivable("/sim/panel/y-offset");
258 fgSetArchivable("/sim/panel/jitter");
263 * Unbind panel properties.
272 FGPanel::update (double dt)
274 std::cout << "OSGFIXME" << std::endl;
278 FGPanel::update (osg::State& state, GLfloat winx, GLfloat winw, GLfloat winy, GLfloat winh)
280 // Calculate accelerations
281 // and jiggle the panel accordingly
282 // The factors and bounds are just
283 // initial guesses; using sqrt smooths
285 double x_offset = _x_offset->getIntValue();
286 double y_offset = _y_offset->getIntValue();
289 glMatrixMode(GL_PROJECTION);
292 if ( _flipx->getBoolValue() ) {
293 gluOrtho2D(winx + winw, winx, winy + winh, winy); /* up side down */
295 gluOrtho2D(winx, winx + winw, winy, winy + winh); /* right side up */
298 glMatrixMode(GL_MODELVIEW);
302 glTranslated(x_offset, y_offset, 0);
306 glMatrixMode(GL_PROJECTION);
308 glMatrixMode(GL_MODELVIEW);
316 FGPanel::update (osg::State& state)
318 // Do nothing if the panel isn't visible.
319 if ( !fgPanelVisible() ) {
325 // Now, draw the panel
326 float aspect_adjust = get_aspect_adjust(_xsize_node->getIntValue(),
327 _ysize_node->getIntValue());
328 if (aspect_adjust <1.0)
329 update(state, WIN_X, int(WIN_W * aspect_adjust), WIN_Y, WIN_H);
331 update(state, WIN_X, WIN_W, WIN_Y, int(WIN_H / aspect_adjust));
335 * Handle repeatable mouse events. Called from update() and from
336 * fgUpdate3DPanels(). This functionality needs to move into the
337 * input subsystem. Counting a tick every two frames is clumsy...
339 void FGPanel::updateMouseDelay()
343 if (_mouseDelay < 0) {
344 _mouseInstrument->doMouseAction(_mouseButton, 0, _mouseX, _mouseY);
352 FGPanel::draw(osg::State& state)
354 // In 3D mode, it's possible that we are being drawn exactly on top
355 // of an existing polygon. Use an offset to prevent z-fighting. In
356 // 2D mode, this is a no-op.
357 static osg::ref_ptr<osg::StateSet> panelStateSet;
358 if (!panelStateSet.valid()) {
359 panelStateSet = new osg::StateSet;
360 panelStateSet->setAttributeAndModes(new osg::PolygonOffset(-1, -POFF_UNITS));
361 panelStateSet->setTextureAttribute(0, new osg::TexEnv);
363 // Draw the background
364 panelStateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::ON);
365 panelStateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
366 panelStateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
367 panelStateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
368 osg::Material* material = new osg::Material;
369 material->setColorMode(osg::Material::AMBIENT_AND_DIFFUSE);
370 material->setDiffuse(osg::Material::FRONT_AND_BACK, osg::Vec4(1, 1, 1, 1));
371 material->setAmbient(osg::Material::FRONT_AND_BACK, osg::Vec4(1, 1, 1, 1));
372 material->setSpecular(osg::Material::FRONT_AND_BACK, osg::Vec4(0, 0, 0, 1));
373 material->setEmission(osg::Material::FRONT_AND_BACK, osg::Vec4(0, 0, 0, 1));
374 panelStateSet->setAttribute(material);
375 panelStateSet->setMode(GL_CULL_FACE, osg::StateAttribute::ON);
376 panelStateSet->setAttributeAndModes(new osg::CullFace(osg::CullFace::BACK));
377 panelStateSet->setAttributeAndModes(new osg::Depth(osg::Depth::LEQUAL));
379 if ( _enable_depth_test )
380 panelStateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
382 panelStateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
383 state.pushStateSet(panelStateSet.get());
385 state.setActiveTextureUnit(0);
386 state.setClientActiveTextureUnit(0);
388 FGLight *l = (FGLight *)(globals->get_subsystem("lighting"));
389 sgCopyVec4( panel_color, l->scene_diffuse().data());
390 if ( fgGetDouble("/systems/electrical/outputs/instrument-lights") > 1.0 ) {
391 if ( panel_color[0] < 0.7 ) panel_color[0] = 0.7;
392 if ( panel_color[1] < 0.2 ) panel_color[1] = 0.2;
393 if ( panel_color[2] < 0.2 ) panel_color[2] = 0.2;
395 glColor4fv( panel_color );
397 state.pushStateSet(_bg.get());
399 state.setActiveTextureUnit(0);
400 state.setClientActiveTextureUnit(0);
403 glTexCoord2f(0.0, 0.0); glVertex2f(WIN_X, WIN_Y);
404 glTexCoord2f(1.0, 0.0); glVertex2f(WIN_X + _width, WIN_Y);
405 glTexCoord2f(1.0, 1.0); glVertex2f(WIN_X + _width, WIN_Y + _height);
406 glTexCoord2f(0.0, 1.0); glVertex2f(WIN_X, WIN_Y + _height);
410 state.setActiveTextureUnit(0);
411 state.setClientActiveTextureUnit(0);
414 for (int i = 0; i < 4; i ++) {
415 // top row of textures...(1,3,5,7)
416 state.pushStateSet(_mbg[i*2].get());
418 state.setActiveTextureUnit(0);
419 state.setClientActiveTextureUnit(0);
422 glTexCoord2f(0.0, 0.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y + (_height/2));
423 glTexCoord2f(1.0, 0.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y + (_height/2));
424 glTexCoord2f(1.0, 1.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y + _height);
425 glTexCoord2f(0.0, 1.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y + _height);
429 state.setActiveTextureUnit(0);
430 state.setClientActiveTextureUnit(0);
432 // bottom row of textures...(2,4,6,8)
433 state.pushStateSet(_mbg[i*2+1].get());
435 state.setActiveTextureUnit(0);
436 state.setClientActiveTextureUnit(0);
439 glTexCoord2f(0.0, 0.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y);
440 glTexCoord2f(1.0, 0.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y);
441 glTexCoord2f(1.0, 1.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y + (_height/2));
442 glTexCoord2f(0.0, 1.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y + (_height/2));
446 state.setActiveTextureUnit(0);
447 state.setClientActiveTextureUnit(0);
452 // Draw the instruments.
453 // Syd Adams: added instrument clipping
454 instrument_list_type::const_iterator current = _instruments.begin();
455 instrument_list_type::const_iterator end = _instruments.end();
457 GLdouble blx[4]={1.0,0.0,0.0,0.0};
458 GLdouble bly[4]={0.0,1.0,0.0,0.0};
459 GLdouble urx[4]={-1.0,0.0,0.0,0.0};
460 GLdouble ury[4]={0.0,-1.0,0.0,0.0};
462 for ( ; current != end; current++) {
463 FGPanelInstrument * instr = *current;
465 glTranslated(instr->getXPos(), instr->getYPos(), 0);
467 int ix= instr->getWidth();
468 int iy= instr->getHeight();
470 glTranslated(-ix/2,-iy/2,0);
471 glClipPlane(GL_CLIP_PLANE0,blx);
472 glClipPlane(GL_CLIP_PLANE1,bly);
473 glEnable(GL_CLIP_PLANE0);
474 glEnable(GL_CLIP_PLANE1);
476 glTranslated(ix,iy,0);
477 glClipPlane(GL_CLIP_PLANE2,urx);
478 glClipPlane(GL_CLIP_PLANE3,ury);
479 glEnable(GL_CLIP_PLANE2);
480 glEnable(GL_CLIP_PLANE3);
487 glDisable(GL_CLIP_PLANE0);
488 glDisable(GL_CLIP_PLANE1);
489 glDisable(GL_CLIP_PLANE2);
490 glDisable(GL_CLIP_PLANE3);
494 state.setActiveTextureUnit(0);
495 state.setClientActiveTextureUnit(0);
498 // Draw yellow "hotspots" if directed to. This is a panel authoring
499 // feature; not intended to be high performance or to look good.
500 if ( fgGetBool("/sim/panel-hotspots") ) {
501 static osg::ref_ptr<osg::StateSet> hotspotStateSet;
502 if (!hotspotStateSet.valid()) {
503 hotspotStateSet = new osg::StateSet;
504 hotspotStateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
505 hotspotStateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
508 state.pushStateSet(hotspotStateSet.get());
510 state.setActiveTextureUnit(0);
511 state.setClientActiveTextureUnit(0);
514 glPushAttrib(GL_ENABLE_BIT);
515 glDisable(GL_COLOR_MATERIAL);
518 for ( unsigned int i = 0; i < _instruments.size(); i++ )
519 _instruments[i]->drawHotspots(state);
525 state.setActiveTextureUnit(0);
526 state.setClientActiveTextureUnit(0);
532 * Set the panel's visibility.
535 FGPanel::setVisibility (bool visibility)
537 _visibility->setBoolValue( visibility );
542 * Return true if the panel is visible.
545 FGPanel::getVisibility () const
547 return _visibility->getBoolValue();
552 * Set the panel's background texture.
555 FGPanel::setBackground (osg::Texture2D* texture)
557 osg::StateSet* stateSet = new osg::StateSet;
558 stateSet->setTextureAttribute(0, texture);
559 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::ON);
560 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
565 * Set the panel's multiple background textures.
568 FGPanel::setMultiBackground (osg::Texture2D* texture, int idx)
572 osg::StateSet* stateSet = new osg::StateSet;
573 stateSet->setTextureAttribute(0, texture);
574 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::ON);
575 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
576 _mbg[idx] = stateSet;
580 * Set the panel's x-offset.
583 FGPanel::setXOffset (int offset)
585 if (offset <= 0 && offset >= -_width + WIN_W)
586 _x_offset->setIntValue( offset );
591 * Set the panel's y-offset.
594 FGPanel::setYOffset (int offset)
596 if (offset <= 0 && offset >= -_height)
597 _y_offset->setIntValue( offset );
601 * Handle a mouse action in panel-local (not screen) coordinates.
602 * Used by the 3D panel code in Model/panelnode.cxx, in situations
603 * where the panel doesn't control its own screen location.
606 FGPanel::doLocalMouseAction(int button, int updown, int x, int y)
608 // Note a released button and return
610 if (_mouseInstrument != 0)
611 _mouseInstrument->doMouseAction(_mouseButton, 1, _mouseX, _mouseY);
613 _mouseInstrument = 0;
617 // Search for a matching instrument.
618 for (int i = 0; i < (int)_instruments.size(); i++) {
619 FGPanelInstrument *inst = _instruments[i];
620 int ix = inst->getXPos();
621 int iy = inst->getYPos();
622 int iw = inst->getWidth() / 2;
623 int ih = inst->getHeight() / 2;
624 if (x >= ix - iw && x < ix + iw && y >= iy - ih && y < iy + ih) {
627 _mouseInstrument = inst;
628 _mouseButton = button;
631 // Always do the action once.
632 return _mouseInstrument->doMouseAction(_mouseButton, 0,
640 * Perform a mouse action.
643 FGPanel::doMouseAction (int button, int updown, int x, int y)
645 // FIXME: this same code appears in update()
646 int xsize = _xsize_node->getIntValue();
647 int ysize = _ysize_node->getIntValue();
648 float aspect_adjust = get_aspect_adjust(xsize, ysize);
650 // Scale for the real window size.
651 if (aspect_adjust < 1.0) {
652 x = int(((float)x / xsize) * WIN_W * aspect_adjust);
653 y = int(WIN_H - ((float(y) / ysize) * WIN_H));
655 x = int(((float)x / xsize) * WIN_W);
656 y = int((WIN_H - ((float(y) / ysize) * WIN_H)) / aspect_adjust);
659 // Adjust for offsets.
660 x -= _x_offset->getIntValue();
661 y -= _y_offset->getIntValue();
663 // Having fixed up the coordinates, fall through to the local
664 // coordinate handler.
665 return doLocalMouseAction(button, updown, x, y);
668 void FGPanel::setDepthTest (bool enable) {
669 _enable_depth_test = enable;
674 ////////////////////////////////////////////////////////////////////////.
675 // Implementation of FGPanelAction.
676 ////////////////////////////////////////////////////////////////////////
678 FGPanelAction::FGPanelAction ()
682 FGPanelAction::FGPanelAction (int button, int x, int y, int w, int h,
684 : _button(button), _x(x), _y(y), _w(w), _h(h), _repeatable(repeatable)
688 FGPanelAction::~FGPanelAction ()
690 for (unsigned int i = 0; i < 2; i++) {
691 for (unsigned int j = 0; j < _bindings[i].size(); j++)
692 delete _bindings[i][j];
697 FGPanelAction::addBinding (SGBinding * binding, int updown)
699 _bindings[updown].push_back(binding);
703 FGPanelAction::doAction (int updown)
706 if ((updown != _last_state) || (updown == 0 && _repeatable)) {
707 int nBindings = _bindings[updown].size();
708 for (int i = 0; i < nBindings; i++)
709 _bindings[updown][i]->fire();
711 _last_state = updown;
720 ////////////////////////////////////////////////////////////////////////
721 // Implementation of FGPanelTransformation.
722 ////////////////////////////////////////////////////////////////////////
724 FGPanelTransformation::FGPanelTransformation ()
729 FGPanelTransformation::~FGPanelTransformation ()
736 ////////////////////////////////////////////////////////////////////////
737 // Implementation of FGPanelInstrument.
738 ////////////////////////////////////////////////////////////////////////
741 FGPanelInstrument::FGPanelInstrument ()
747 FGPanelInstrument::FGPanelInstrument (int x, int y, int w, int h)
753 FGPanelInstrument::~FGPanelInstrument ()
755 for (action_list_type::iterator it = _actions.begin();
756 it != _actions.end();
764 FGPanelInstrument::drawHotspots(osg::State& state)
766 for ( unsigned int i = 0; i < _actions.size(); i++ ) {
767 FGPanelAction* a = _actions[i];
768 float x1 = getXPos() + a->getX();
769 float x2 = x1 + a->getWidth();
770 float y1 = getYPos() + a->getY();
771 float y2 = y1 + a->getHeight();
773 glBegin(GL_LINE_LOOP);
783 FGPanelInstrument::setPosition (int x, int y)
790 FGPanelInstrument::setSize (int w, int h)
797 FGPanelInstrument::getXPos () const
803 FGPanelInstrument::getYPos () const
809 FGPanelInstrument::getWidth () const
815 FGPanelInstrument::getHeight () const
821 FGPanelInstrument::addAction (FGPanelAction * action)
823 _actions.push_back(action);
826 // Coordinates relative to centre.
828 FGPanelInstrument::doMouseAction (int button, int updown, int x, int y)
831 action_list_type::iterator it = _actions.begin();
832 action_list_type::iterator last = _actions.end();
833 for ( ; it != last; it++) {
834 if ((*it)->inArea(button, x, y) &&
835 (*it)->doAction(updown))
844 ////////////////////////////////////////////////////////////////////////
845 // Implementation of FGLayeredInstrument.
846 ////////////////////////////////////////////////////////////////////////
848 FGLayeredInstrument::FGLayeredInstrument (int x, int y, int w, int h)
849 : FGPanelInstrument(x, y, w, h)
853 FGLayeredInstrument::~FGLayeredInstrument ()
855 for (layer_list::iterator it = _layers.begin(); it != _layers.end(); it++) {
862 FGLayeredInstrument::draw (osg::State& state)
867 for (int i = 0; i < (int)_layers.size(); i++) {
869 _layers[i]->draw(state);
875 FGLayeredInstrument::addLayer (FGInstrumentLayer *layer)
877 int n = _layers.size();
878 if (layer->getWidth() == -1) {
879 layer->setWidth(getWidth());
881 if (layer->getHeight() == -1) {
882 layer->setHeight(getHeight());
884 _layers.push_back(layer);
889 FGLayeredInstrument::addLayer (const FGCroppedTexture &texture,
892 return addLayer(new FGTexturedLayer(texture, w, h));
896 FGLayeredInstrument::addTransformation (FGPanelTransformation * transformation)
898 int layer = _layers.size() - 1;
899 _layers[layer]->addTransformation(transformation);
904 ////////////////////////////////////////////////////////////////////////
905 // Implementation of FGSpecialInstrument.
906 ////////////////////////////////////////////////////////////////////////
908 FGSpecialInstrument::FGSpecialInstrument (DCLGPS* sb)
909 : FGPanelInstrument()
914 FGSpecialInstrument::~FGSpecialInstrument ()
919 FGSpecialInstrument::draw (osg::State& state)
926 ////////////////////////////////////////////////////////////////////////
927 // Implementation of FGInstrumentLayer.
928 ////////////////////////////////////////////////////////////////////////
930 FGInstrumentLayer::FGInstrumentLayer (int w, int h)
936 FGInstrumentLayer::~FGInstrumentLayer ()
938 for (transformation_list::iterator it = _transformations.begin();
939 it != _transformations.end();
947 FGInstrumentLayer::transform () const
949 transformation_list::const_iterator it = _transformations.begin();
950 transformation_list::const_iterator last = _transformations.end();
952 FGPanelTransformation *t = *it;
954 float val = (t->node == 0 ? 0.0 : t->node->getFloatValue());
957 val = fmod(val, t->mod);
960 } else if (val > t->max) {
965 val = val * t->factor + t->offset;
967 val = t->table->interpolate(val) * t->factor + t->offset;
971 case FGPanelTransformation::XSHIFT:
972 glTranslatef(val, 0.0, 0.0);
974 case FGPanelTransformation::YSHIFT:
975 glTranslatef(0.0, val, 0.0);
977 case FGPanelTransformation::ROTATION:
978 glRotatef(-val, 0.0, 0.0, 1.0);
987 FGInstrumentLayer::addTransformation (FGPanelTransformation * transformation)
989 _transformations.push_back(transformation);
994 ////////////////////////////////////////////////////////////////////////
995 // Implementation of FGGroupLayer.
996 ////////////////////////////////////////////////////////////////////////
998 FGGroupLayer::FGGroupLayer ()
1002 FGGroupLayer::~FGGroupLayer ()
1004 for (unsigned int i = 0; i < _layers.size(); i++)
1009 FGGroupLayer::draw (osg::State& state)
1013 int nLayers = _layers.size();
1014 for (int i = 0; i < nLayers; i++)
1015 _layers[i]->draw(state);
1020 FGGroupLayer::addLayer (FGInstrumentLayer * layer)
1022 _layers.push_back(layer);
1027 ////////////////////////////////////////////////////////////////////////
1028 // Implementation of FGTexturedLayer.
1029 ////////////////////////////////////////////////////////////////////////
1032 FGTexturedLayer::FGTexturedLayer (const FGCroppedTexture &texture, int w, int h)
1033 : FGInstrumentLayer(w, h),
1036 setTexture(texture);
1040 FGTexturedLayer::~FGTexturedLayer ()
1046 FGTexturedLayer::draw (osg::State& state)
1053 state.pushStateSet(_texture.getTexture());
1055 state.setActiveTextureUnit(0);
1056 state.setClientActiveTextureUnit(0);
1058 glBegin(GL_POLYGON);
1061 glColor4fv( emissive_panel_color );
1063 // From Curt: turn on the panel
1064 // lights after sundown.
1065 glColor4fv( panel_color );
1068 glTexCoord2f(_texture.getMinX(), _texture.getMinY()); glVertex2f(-w2, -h2);
1069 glTexCoord2f(_texture.getMaxX(), _texture.getMinY()); glVertex2f(w2, -h2);
1070 glTexCoord2f(_texture.getMaxX(), _texture.getMaxY()); glVertex2f(w2, h2);
1071 glTexCoord2f(_texture.getMinX(), _texture.getMaxY()); glVertex2f(-w2, h2);
1073 state.popStateSet();
1075 state.setActiveTextureUnit(0);
1076 state.setClientActiveTextureUnit(0);
1083 ////////////////////////////////////////////////////////////////////////
1084 // Implementation of FGTextLayer.
1085 ////////////////////////////////////////////////////////////////////////
1087 FGTextLayer::FGTextLayer (int w, int h)
1088 : FGInstrumentLayer(w, h), _pointSize(14.0), _font_name("Helvetica.txf")
1091 _color[0] = _color[1] = _color[2] = 0.0;
1095 FGTextLayer::~FGTextLayer ()
1097 chunk_list::iterator it = _chunks.begin();
1098 chunk_list::iterator last = _chunks.end();
1099 for ( ; it != last; it++) {
1105 FGTextLayer::draw (osg::State& state)
1111 FGFontCache *fc = globals->get_fontcache();
1112 text_renderer.setFont(fc->getTexFont(_font_name.c_str()));
1114 text_renderer.setPointSize(_pointSize);
1115 text_renderer.begin();
1116 text_renderer.start3f(0, 0, 0);
1119 long diff = _now - _then;
1121 if (diff > 100000 || diff < 0 ) {
1122 // ( diff < 0 ) is a sanity check and indicates our time stamp
1123 // difference math probably overflowed. We can handle a max
1124 // difference of 35.8 minutes since the returned value is in
1125 // usec. So if the panel is left off longer than that we can
1126 // over flow the math with it is turned back on. This (diff <
1127 // 0) catches that situation, get's us out of trouble, and
1133 // Something is goofy. The code in this file renders only CCW
1134 // polygons, and I have verified that the font code in plib
1135 // renders only CCW trianbles. Yet they come out backwards.
1136 // Something around here or in plib is either changing the winding
1137 // order or (more likely) pushing a left-handed matrix onto the
1138 // stack. But I can't find it; get out the chainsaw...
1140 text_renderer.puts((char *)(_value.c_str()));
1141 glFrontFace(GL_CCW);
1143 text_renderer.end();
1144 glColor4f(1.0, 1.0, 1.0, 1.0); // FIXME
1149 FGTextLayer::addChunk (FGTextLayer::Chunk * chunk)
1151 _chunks.push_back(chunk);
1155 FGTextLayer::setColor (float r, float g, float b)
1164 FGTextLayer::setPointSize (float size)
1170 FGTextLayer::setFontName(const string &name)
1172 _font_name = name + ".txf";
1177 FGTextLayer::setFont(fntFont * font)
1179 text_renderer.setFont(font);
1184 FGTextLayer::recalc_value () const
1187 chunk_list::const_iterator it = _chunks.begin();
1188 chunk_list::const_iterator last = _chunks.end();
1189 for ( ; it != last; it++) {
1190 _value += (*it)->getValue();
1196 ////////////////////////////////////////////////////////////////////////
1197 // Implementation of FGTextLayer::Chunk.
1198 ////////////////////////////////////////////////////////////////////////
1200 FGTextLayer::Chunk::Chunk (const string &text, const string &fmt)
1201 : _type(FGTextLayer::TEXT), _fmt(fmt)
1208 FGTextLayer::Chunk::Chunk (ChunkType type, const SGPropertyNode * node,
1209 const string &fmt, float mult, float offs,
1211 : _type(type), _fmt(fmt), _mult(mult), _offs(offs), _trunc(truncation)
1214 if (type == TEXT_VALUE)
1223 FGTextLayer::Chunk::getValue () const
1229 sprintf(_buf, _fmt.c_str(), _text.c_str());
1232 sprintf(_buf, _fmt.c_str(), _node->getStringValue());
1235 double d = _offs + _node->getFloatValue() * _mult;
1236 if (_trunc) d = (d < 0) ? -floor(-d) : floor(d);
1237 sprintf(_buf, _fmt.c_str(), d);
1248 ////////////////////////////////////////////////////////////////////////
1249 // Implementation of FGSwitchLayer.
1250 ////////////////////////////////////////////////////////////////////////
1252 FGSwitchLayer::FGSwitchLayer ()
1258 FGSwitchLayer::draw (osg::State& state)
1262 int nLayers = _layers.size();
1263 for (int i = 0; i < nLayers; i++) {
1264 if (_layers[i]->test()) {
1265 _layers[i]->draw(state);