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),
208 _drawPanelHotspots("/sim/panel-hotspots")
218 for (instrument_list_type::iterator it = _instruments.begin();
219 it != _instruments.end();
228 * Add an instrument to the panel.
231 FGPanel::addInstrument (FGPanelInstrument * instrument)
233 _instruments.push_back(instrument);
238 * Initialize the panel.
247 * Bind panel properties.
252 fgSetArchivable("/sim/panel/visibility");
253 fgSetArchivable("/sim/panel/x-offset");
254 fgSetArchivable("/sim/panel/y-offset");
255 fgSetArchivable("/sim/panel/jitter");
260 * Unbind panel properties.
269 FGPanel::update (double /* dt */)
275 FGPanel::getAspectScale() const
277 // set corner-coordinates correctly
279 int xsize = _xsize_node->getIntValue();
280 int ysize = _ysize_node->getIntValue();
281 float aspect_adjust = get_aspect_adjust(xsize, ysize);
283 if (aspect_adjust < 1.0)
284 return ysize / (double) WIN_H;
286 return xsize /(double) WIN_W;
290 * Handle repeatable mouse events. Called from update() and from
291 * fgUpdate3DPanels(). This functionality needs to move into the
292 * input subsystem. Counting a tick every two frames is clumsy...
294 void FGPanel::updateMouseDelay()
298 if (_mouseDelay < 0) {
299 _mouseInstrument->doMouseAction(_mouseButton, 0, _mouseX, _mouseY);
306 FGPanel::draw(osg::State& state)
309 // In 3D mode, it's possible that we are being drawn exactly on top
310 // of an existing polygon. Use an offset to prevent z-fighting. In
311 // 2D mode, this is a no-op.
312 static osg::ref_ptr<osg::StateSet> panelStateSet;
313 if (!panelStateSet.valid()) {
314 panelStateSet = new osg::StateSet;
315 panelStateSet->setAttributeAndModes(new osg::PolygonOffset(-1, -POFF_UNITS));
316 panelStateSet->setTextureAttribute(0, new osg::TexEnv);
318 // Draw the background
319 panelStateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::ON);
320 panelStateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
321 panelStateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
322 panelStateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
324 osg::Material* material = new osg::Material;
325 material->setColorMode(osg::Material::AMBIENT_AND_DIFFUSE);
326 material->setDiffuse(osg::Material::FRONT_AND_BACK, osg::Vec4(1, 1, 1, 1));
327 material->setAmbient(osg::Material::FRONT_AND_BACK, osg::Vec4(1, 1, 1, 1));
328 material->setSpecular(osg::Material::FRONT_AND_BACK, osg::Vec4(0, 0, 0, 1));
329 material->setEmission(osg::Material::FRONT_AND_BACK, osg::Vec4(0, 0, 0, 1));
330 panelStateSet->setAttribute(material);
332 panelStateSet->setMode(GL_CULL_FACE, osg::StateAttribute::ON);
333 panelStateSet->setAttributeAndModes(new osg::CullFace(osg::CullFace::BACK));
334 panelStateSet->setAttributeAndModes(new osg::Depth(osg::Depth::LEQUAL));
336 if ( _enable_depth_test )
337 panelStateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
339 panelStateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
340 state.pushStateSet(panelStateSet.get());
342 state.setActiveTextureUnit(0);
343 state.setClientActiveTextureUnit(0);
345 FGLight *l = (FGLight *)(globals->get_subsystem("lighting"));
346 sgCopyVec4( panel_color, l->scene_diffuse().data());
347 if ( fgGetDouble("/systems/electrical/outputs/instrument-lights") > 1.0 ) {
348 if ( panel_color[0] < 0.7 ) panel_color[0] = 0.7;
349 if ( panel_color[1] < 0.2 ) panel_color[1] = 0.2;
350 if ( panel_color[2] < 0.2 ) panel_color[2] = 0.2;
352 glColor4fv( panel_color );
354 state.pushStateSet(_bg.get());
356 state.setActiveTextureUnit(0);
357 state.setClientActiveTextureUnit(0);
360 glTexCoord2f(0.0, 0.0); glVertex2f(WIN_X, WIN_Y);
361 glTexCoord2f(1.0, 0.0); glVertex2f(WIN_X + _width, WIN_Y);
362 glTexCoord2f(1.0, 1.0); glVertex2f(WIN_X + _width, WIN_Y + _height);
363 glTexCoord2f(0.0, 1.0); glVertex2f(WIN_X, WIN_Y + _height);
367 state.setActiveTextureUnit(0);
368 state.setClientActiveTextureUnit(0);
371 for (int i = 0; i < 4; i ++) {
372 // top row of textures...(1,3,5,7)
373 state.pushStateSet(_mbg[i*2].get());
375 state.setActiveTextureUnit(0);
376 state.setClientActiveTextureUnit(0);
379 glTexCoord2f(0.0, 0.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y + (_height/2));
380 glTexCoord2f(1.0, 0.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y + (_height/2));
381 glTexCoord2f(1.0, 1.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y + _height);
382 glTexCoord2f(0.0, 1.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y + _height);
386 state.setActiveTextureUnit(0);
387 state.setClientActiveTextureUnit(0);
389 // bottom row of textures...(2,4,6,8)
390 state.pushStateSet(_mbg[i*2+1].get());
392 state.setActiveTextureUnit(0);
393 state.setClientActiveTextureUnit(0);
396 glTexCoord2f(0.0, 0.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y);
397 glTexCoord2f(1.0, 0.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y);
398 glTexCoord2f(1.0, 1.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y + (_height/2));
399 glTexCoord2f(0.0, 1.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y + (_height/2));
403 state.setActiveTextureUnit(0);
404 state.setClientActiveTextureUnit(0);
409 // Draw the instruments.
410 // Syd Adams: added instrument clipping
411 instrument_list_type::const_iterator current = _instruments.begin();
412 instrument_list_type::const_iterator end = _instruments.end();
414 GLdouble blx[4]={1.0,0.0,0.0,0.0};
415 GLdouble bly[4]={0.0,1.0,0.0,0.0};
416 GLdouble urx[4]={-1.0,0.0,0.0,0.0};
417 GLdouble ury[4]={0.0,-1.0,0.0,0.0};
419 for ( ; current != end; current++) {
420 FGPanelInstrument * instr = *current;
422 glTranslated(instr->getXPos(), instr->getYPos(), 0);
424 int ix= instr->getWidth();
425 int iy= instr->getHeight();
427 glTranslated(-ix/2,-iy/2,0);
428 glClipPlane(GL_CLIP_PLANE0,blx);
429 glClipPlane(GL_CLIP_PLANE1,bly);
430 glEnable(GL_CLIP_PLANE0);
431 glEnable(GL_CLIP_PLANE1);
433 glTranslated(ix,iy,0);
434 glClipPlane(GL_CLIP_PLANE2,urx);
435 glClipPlane(GL_CLIP_PLANE3,ury);
436 glEnable(GL_CLIP_PLANE2);
437 glEnable(GL_CLIP_PLANE3);
444 glDisable(GL_CLIP_PLANE0);
445 glDisable(GL_CLIP_PLANE1);
446 glDisable(GL_CLIP_PLANE2);
447 glDisable(GL_CLIP_PLANE3);
451 state.setActiveTextureUnit(0);
452 state.setClientActiveTextureUnit(0);
455 // Draw yellow "hotspots" if directed to. This is a panel authoring
456 // feature; not intended to be high performance or to look good.
457 if ( _drawPanelHotspots ) {
458 static osg::ref_ptr<osg::StateSet> hotspotStateSet;
459 if (!hotspotStateSet.valid()) {
460 hotspotStateSet = new osg::StateSet;
461 hotspotStateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
462 hotspotStateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
465 state.pushStateSet(hotspotStateSet.get());
467 state.setActiveTextureUnit(0);
468 state.setClientActiveTextureUnit(0);
471 glPushAttrib(GL_ENABLE_BIT);
472 glDisable(GL_COLOR_MATERIAL);
475 for ( unsigned int i = 0; i < _instruments.size(); i++ )
476 _instruments[i]->drawHotspots(state);
482 state.setActiveTextureUnit(0);
483 state.setClientActiveTextureUnit(0);
489 * Set the panel's visibility.
492 FGPanel::setVisibility (bool visibility)
494 _visibility->setBoolValue( visibility );
499 * Return true if the panel is visible.
502 FGPanel::getVisibility () const
504 return _visibility->getBoolValue();
509 * Set the panel's background texture.
512 FGPanel::setBackground (osg::Texture2D* texture)
514 osg::StateSet* stateSet = new osg::StateSet;
515 stateSet->setTextureAttribute(0, texture);
516 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::ON);
517 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
522 * Set the panel's multiple background textures.
525 FGPanel::setMultiBackground (osg::Texture2D* texture, int idx)
529 osg::StateSet* stateSet = new osg::StateSet;
530 stateSet->setTextureAttribute(0, texture);
531 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::ON);
532 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
533 _mbg[idx] = stateSet;
537 * Set the panel's x-offset.
540 FGPanel::setXOffset (int offset)
542 if (offset <= 0 && offset >= -_width + WIN_W)
543 _x_offset->setIntValue( offset );
548 * Set the panel's y-offset.
551 FGPanel::setYOffset (int offset)
553 if (offset <= 0 && offset >= -_height)
554 _y_offset->setIntValue( offset );
558 * Handle a mouse action in panel-local (not screen) coordinates.
559 * Used by the 3D panel code in Model/panelnode.cxx, in situations
560 * where the panel doesn't control its own screen location.
563 FGPanel::doLocalMouseAction(int button, int updown, int x, int y)
565 // Note a released button and return
567 if (_mouseInstrument != 0)
568 _mouseInstrument->doMouseAction(_mouseButton, 1, _mouseX, _mouseY);
570 _mouseInstrument = 0;
574 // Search for a matching instrument.
575 for (int i = 0; i < (int)_instruments.size(); i++) {
576 FGPanelInstrument *inst = _instruments[i];
577 int ix = inst->getXPos();
578 int iy = inst->getYPos();
579 int iw = inst->getWidth() / 2;
580 int ih = inst->getHeight() / 2;
581 if (x >= ix - iw && x < ix + iw && y >= iy - ih && y < iy + ih) {
584 _mouseInstrument = inst;
585 _mouseButton = button;
588 // Always do the action once.
589 return _mouseInstrument->doMouseAction(_mouseButton, 0,
597 * Perform a mouse action.
600 FGPanel::doMouseAction (int button, int updown, int x, int y)
602 // FIXME: this same code appears in update()
603 int xsize = _xsize_node->getIntValue();
604 int ysize = _ysize_node->getIntValue();
605 float aspect_adjust = get_aspect_adjust(xsize, ysize);
607 // Scale for the real window size.
608 if (aspect_adjust < 1.0) {
609 x = int(((float)x / xsize) * WIN_W * aspect_adjust);
610 y = int(WIN_H - ((float(y) / ysize) * WIN_H));
612 x = int(((float)x / xsize) * WIN_W);
613 y = int((WIN_H - ((float(y) / ysize) * WIN_H)) / aspect_adjust);
616 // Adjust for offsets.
617 x -= _x_offset->getIntValue();
618 y -= _y_offset->getIntValue();
620 // Having fixed up the coordinates, fall through to the local
621 // coordinate handler.
622 return doLocalMouseAction(button, updown, x, y);
625 void FGPanel::setDepthTest (bool enable) {
626 _enable_depth_test = enable;
631 ////////////////////////////////////////////////////////////////////////.
632 // Implementation of FGPanelAction.
633 ////////////////////////////////////////////////////////////////////////
635 FGPanelAction::FGPanelAction ()
639 FGPanelAction::FGPanelAction (int button, int x, int y, int w, int h,
641 : _button(button), _x(x), _y(y), _w(w), _h(h), _repeatable(repeatable)
645 FGPanelAction::~FGPanelAction ()
647 for (unsigned int i = 0; i < 2; i++) {
648 for (unsigned int j = 0; j < _bindings[i].size(); j++)
649 delete _bindings[i][j];
654 FGPanelAction::addBinding (SGBinding * binding, int updown)
656 _bindings[updown].push_back(binding);
660 FGPanelAction::doAction (int updown)
663 if ((updown != _last_state) || (updown == 0 && _repeatable)) {
664 int nBindings = _bindings[updown].size();
665 for (int i = 0; i < nBindings; i++)
666 _bindings[updown][i]->fire();
668 _last_state = updown;
677 ////////////////////////////////////////////////////////////////////////
678 // Implementation of FGPanelTransformation.
679 ////////////////////////////////////////////////////////////////////////
681 FGPanelTransformation::FGPanelTransformation ()
686 FGPanelTransformation::~FGPanelTransformation ()
693 ////////////////////////////////////////////////////////////////////////
694 // Implementation of FGPanelInstrument.
695 ////////////////////////////////////////////////////////////////////////
698 FGPanelInstrument::FGPanelInstrument ()
704 FGPanelInstrument::FGPanelInstrument (int x, int y, int w, int h)
710 FGPanelInstrument::~FGPanelInstrument ()
712 for (action_list_type::iterator it = _actions.begin();
713 it != _actions.end();
721 FGPanelInstrument::drawHotspots(osg::State& state)
723 for ( unsigned int i = 0; i < _actions.size(); i++ ) {
724 FGPanelAction* a = _actions[i];
725 float x1 = getXPos() + a->getX();
726 float x2 = x1 + a->getWidth();
727 float y1 = getYPos() + a->getY();
728 float y2 = y1 + a->getHeight();
730 glBegin(GL_LINE_LOOP);
740 FGPanelInstrument::setPosition (int x, int y)
747 FGPanelInstrument::setSize (int w, int h)
754 FGPanelInstrument::getXPos () const
760 FGPanelInstrument::getYPos () const
766 FGPanelInstrument::getWidth () const
772 FGPanelInstrument::getHeight () const
778 FGPanelInstrument::addAction (FGPanelAction * action)
780 _actions.push_back(action);
783 // Coordinates relative to centre.
785 FGPanelInstrument::doMouseAction (int button, int updown, int x, int y)
788 action_list_type::iterator it = _actions.begin();
789 action_list_type::iterator last = _actions.end();
790 for ( ; it != last; it++) {
791 if ((*it)->inArea(button, x, y) &&
792 (*it)->doAction(updown))
801 ////////////////////////////////////////////////////////////////////////
802 // Implementation of FGLayeredInstrument.
803 ////////////////////////////////////////////////////////////////////////
805 FGLayeredInstrument::FGLayeredInstrument (int x, int y, int w, int h)
806 : FGPanelInstrument(x, y, w, h)
810 FGLayeredInstrument::~FGLayeredInstrument ()
812 for (layer_list::iterator it = _layers.begin(); it != _layers.end(); it++) {
819 FGLayeredInstrument::draw (osg::State& state)
824 for (int i = 0; i < (int)_layers.size(); i++) {
826 _layers[i]->draw(state);
832 FGLayeredInstrument::addLayer (FGInstrumentLayer *layer)
834 int n = _layers.size();
835 if (layer->getWidth() == -1) {
836 layer->setWidth(getWidth());
838 if (layer->getHeight() == -1) {
839 layer->setHeight(getHeight());
841 _layers.push_back(layer);
846 FGLayeredInstrument::addLayer (const FGCroppedTexture &texture,
849 return addLayer(new FGTexturedLayer(texture, w, h));
853 FGLayeredInstrument::addTransformation (FGPanelTransformation * transformation)
855 int layer = _layers.size() - 1;
856 _layers[layer]->addTransformation(transformation);
861 ////////////////////////////////////////////////////////////////////////
862 // Implementation of FGSpecialInstrument.
863 ////////////////////////////////////////////////////////////////////////
865 FGSpecialInstrument::FGSpecialInstrument (DCLGPS* sb)
866 : FGPanelInstrument()
871 FGSpecialInstrument::~FGSpecialInstrument ()
876 FGSpecialInstrument::draw (osg::State& state)
878 complex->draw(state);
883 ////////////////////////////////////////////////////////////////////////
884 // Implementation of FGInstrumentLayer.
885 ////////////////////////////////////////////////////////////////////////
887 FGInstrumentLayer::FGInstrumentLayer (int w, int h)
893 FGInstrumentLayer::~FGInstrumentLayer ()
895 for (transformation_list::iterator it = _transformations.begin();
896 it != _transformations.end();
904 FGInstrumentLayer::transform () const
906 transformation_list::const_iterator it = _transformations.begin();
907 transformation_list::const_iterator last = _transformations.end();
909 FGPanelTransformation *t = *it;
911 float val = (t->node == 0 ? 0.0 : t->node->getFloatValue());
914 val = fmod(val, t->mod);
917 } else if (val > t->max) {
922 val = val * t->factor + t->offset;
924 val = t->table->interpolate(val) * t->factor + t->offset;
928 case FGPanelTransformation::XSHIFT:
929 glTranslatef(val, 0.0, 0.0);
931 case FGPanelTransformation::YSHIFT:
932 glTranslatef(0.0, val, 0.0);
934 case FGPanelTransformation::ROTATION:
935 glRotatef(-val, 0.0, 0.0, 1.0);
944 FGInstrumentLayer::addTransformation (FGPanelTransformation * transformation)
946 _transformations.push_back(transformation);
951 ////////////////////////////////////////////////////////////////////////
952 // Implementation of FGGroupLayer.
953 ////////////////////////////////////////////////////////////////////////
955 FGGroupLayer::FGGroupLayer ()
959 FGGroupLayer::~FGGroupLayer ()
961 for (unsigned int i = 0; i < _layers.size(); i++)
966 FGGroupLayer::draw (osg::State& state)
970 int nLayers = _layers.size();
971 for (int i = 0; i < nLayers; i++)
972 _layers[i]->draw(state);
977 FGGroupLayer::addLayer (FGInstrumentLayer * layer)
979 _layers.push_back(layer);
984 ////////////////////////////////////////////////////////////////////////
985 // Implementation of FGTexturedLayer.
986 ////////////////////////////////////////////////////////////////////////
989 FGTexturedLayer::FGTexturedLayer (const FGCroppedTexture &texture, int w, int h)
990 : FGInstrumentLayer(w, h),
997 FGTexturedLayer::~FGTexturedLayer ()
1003 FGTexturedLayer::draw (osg::State& state)
1010 state.pushStateSet(_texture.getTexture());
1012 state.setActiveTextureUnit(0);
1013 state.setClientActiveTextureUnit(0);
1015 glBegin(GL_POLYGON);
1018 glColor4fv( emissive_panel_color );
1020 // From Curt: turn on the panel
1021 // lights after sundown.
1022 glColor4fv( panel_color );
1025 glTexCoord2f(_texture.getMinX(), _texture.getMinY()); glVertex2f(-w2, -h2);
1026 glTexCoord2f(_texture.getMaxX(), _texture.getMinY()); glVertex2f(w2, -h2);
1027 glTexCoord2f(_texture.getMaxX(), _texture.getMaxY()); glVertex2f(w2, h2);
1028 glTexCoord2f(_texture.getMinX(), _texture.getMaxY()); glVertex2f(-w2, h2);
1030 state.popStateSet();
1032 state.setActiveTextureUnit(0);
1033 state.setClientActiveTextureUnit(0);
1040 ////////////////////////////////////////////////////////////////////////
1041 // Implementation of FGTextLayer.
1042 ////////////////////////////////////////////////////////////////////////
1044 FGTextLayer::FGTextLayer (int w, int h)
1045 : FGInstrumentLayer(w, h), _pointSize(14.0), _font_name("Helvetica.txf")
1048 _color[0] = _color[1] = _color[2] = 0.0;
1052 FGTextLayer::~FGTextLayer ()
1054 chunk_list::iterator it = _chunks.begin();
1055 chunk_list::iterator last = _chunks.end();
1056 for ( ; it != last; it++) {
1062 FGTextLayer::draw (osg::State& state)
1068 FGFontCache *fc = globals->get_fontcache();
1069 fntFont* font = fc->getTexFont(_font_name.c_str());
1071 return; // don't crash on missing fonts
1074 text_renderer.setFont(font);
1076 text_renderer.setPointSize(_pointSize);
1077 text_renderer.begin();
1078 text_renderer.start3f(0, 0, 0);
1081 double diff = (_now - _then).toUSecs();
1083 if (diff > 100000 || diff < 0 ) {
1084 // ( diff < 0 ) is a sanity check and indicates our time stamp
1085 // difference math probably overflowed. We can handle a max
1086 // difference of 35.8 minutes since the returned value is in
1087 // usec. So if the panel is left off longer than that we can
1088 // over flow the math with it is turned back on. This (diff <
1089 // 0) catches that situation, get's us out of trouble, and
1095 // Something is goofy. The code in this file renders only CCW
1096 // polygons, and I have verified that the font code in plib
1097 // renders only CCW trianbles. Yet they come out backwards.
1098 // Something around here or in plib is either changing the winding
1099 // order or (more likely) pushing a left-handed matrix onto the
1100 // stack. But I can't find it; get out the chainsaw...
1102 text_renderer.puts((char *)(_value.c_str()));
1103 glFrontFace(GL_CCW);
1105 text_renderer.end();
1106 glColor4f(1.0, 1.0, 1.0, 1.0); // FIXME
1111 FGTextLayer::addChunk (FGTextLayer::Chunk * chunk)
1113 _chunks.push_back(chunk);
1117 FGTextLayer::setColor (float r, float g, float b)
1126 FGTextLayer::setPointSize (float size)
1132 FGTextLayer::setFontName(const string &name)
1134 _font_name = name + ".txf";
1135 FGFontCache *fc = globals->get_fontcache();
1136 fntFont* font = fc->getTexFont(_font_name.c_str());
1138 SG_LOG(SG_COCKPIT, SG_WARN, "unable to find font:" << name);
1144 FGTextLayer::setFont(fntFont * font)
1146 text_renderer.setFont(font);
1151 FGTextLayer::recalc_value () const
1154 chunk_list::const_iterator it = _chunks.begin();
1155 chunk_list::const_iterator last = _chunks.end();
1156 for ( ; it != last; it++) {
1157 _value += (*it)->getValue();
1163 ////////////////////////////////////////////////////////////////////////
1164 // Implementation of FGTextLayer::Chunk.
1165 ////////////////////////////////////////////////////////////////////////
1167 FGTextLayer::Chunk::Chunk (const string &text, const string &fmt)
1168 : _type(FGTextLayer::TEXT), _fmt(fmt)
1175 FGTextLayer::Chunk::Chunk (ChunkType type, const SGPropertyNode * node,
1176 const string &fmt, float mult, float offs,
1178 : _type(type), _fmt(fmt), _mult(mult), _offs(offs), _trunc(truncation)
1181 if (type == TEXT_VALUE)
1190 FGTextLayer::Chunk::getValue () const
1196 sprintf(_buf, _fmt.c_str(), _text.c_str());
1199 sprintf(_buf, _fmt.c_str(), _node->getStringValue());
1202 double d = _offs + _node->getFloatValue() * _mult;
1203 if (_trunc) d = (d < 0) ? -floor(-d) : floor(d);
1204 sprintf(_buf, _fmt.c_str(), d);
1215 ////////////////////////////////////////////////////////////////////////
1216 // Implementation of FGSwitchLayer.
1217 ////////////////////////////////////////////////////////////////////////
1219 FGSwitchLayer::FGSwitchLayer ()
1225 FGSwitchLayer::draw (osg::State& state)
1229 int nLayers = _layers.size();
1230 for (int i = 0; i < nLayers; i++) {
1231 if (_layers[i]->test()) {
1232 _layers[i]->draw(state);