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., 675 Mass Ave, Cambridge, MA 02139, USA.
29 #include <stdio.h> // sprintf
35 #include <simgear/debug/logstream.hxx>
36 #include <simgear/misc/sg_path.hxx>
38 #include <Main/globals.hxx>
39 #include <Main/fg_props.hxx>
40 #include <Main/viewmgr.hxx>
41 #include <Objects/texload.h>
42 #include <Time/light.hxx>
52 // The number of polygon-offset "units" to place between layers. In
53 // principle, one is supposed to be enough. In practice, I find that
54 // my hardware/driver requires many more.
58 ////////////////////////////////////////////////////////////////////////
60 ////////////////////////////////////////////////////////////////////////
64 * Calculate the aspect adjustment for the panel.
67 get_aspect_adjust (int xsize, int ysize)
69 float ideal_aspect = float(WIN_W) / float(WIN_H);
70 float real_aspect = float(xsize) / float(ysize);
71 return (real_aspect / ideal_aspect);
76 ////////////////////////////////////////////////////////////////////////
78 ////////////////////////////////////////////////////////////////////////
83 if(globals->get_current_panel() == 0)
85 if(globals->get_current_panel()->getVisibility() == 0)
87 if(globals->get_viewmgr()->get_current() != 0)
89 if(globals->get_current_view()->getHeadingOffset_deg() * SGD_DEGREES_TO_RADIANS != 0)
96 ////////////////////////////////////////////////////////////////////////
97 // Implementation of FGTextureManager.
98 ////////////////////////////////////////////////////////////////////////
100 map<string,ssgTexture *> FGTextureManager::_textureMap;
103 FGTextureManager::createTexture (const string &relativePath)
105 ssgTexture * texture = _textureMap[relativePath];
107 SG_LOG( SG_COCKPIT, SG_DEBUG,
108 "Texture " << relativePath << " does not yet exist" );
109 SGPath tpath(globals->get_fg_root());
110 tpath.append(relativePath);
111 texture = new ssgTexture((char *)tpath.c_str(), false, false);
112 _textureMap[relativePath] = texture;
113 if (_textureMap[relativePath] == 0)
114 SG_LOG( SG_COCKPIT, SG_ALERT, "Texture *still* doesn't exist" );
115 SG_LOG( SG_COCKPIT, SG_DEBUG, "Created texture " << relativePath
116 << " handle=" << texture->getHandle() );
125 ////////////////////////////////////////////////////////////////////////
126 // Implementation of FGCropped Texture.
127 ////////////////////////////////////////////////////////////////////////
130 FGCroppedTexture::FGCroppedTexture ()
131 : _path(""), _texture(0),
132 _minX(0.0), _minY(0.0), _maxX(1.0), _maxY(1.0)
137 FGCroppedTexture::FGCroppedTexture (const string &path,
138 float minX, float minY,
139 float maxX, float maxY)
140 : _path(path), _texture(0),
141 _minX(minX), _minY(minY), _maxX(maxX), _maxY(maxY)
146 FGCroppedTexture::~FGCroppedTexture ()
152 FGCroppedTexture::getTexture ()
155 _texture = FGTextureManager::createTexture(_path);
162 ////////////////////////////////////////////////////////////////////////
163 // Implementation of FGPanel.
164 ////////////////////////////////////////////////////////////////////////
166 static fntRenderer text_renderer;
167 static fntTexFont *default_font = 0;
168 static fntTexFont *led_font = 0;
176 _width(WIN_W), _height(int(WIN_H * 0.5768 + 1)),
177 _view_height(int(WIN_H * 0.4232)),
178 _xsize_node(fgGetNode("/sim/startup/xsize", true)),
179 _ysize_node(fgGetNode("/sim/startup/ysize", true)),
180 _visibility(fgGetNode("/sim/panel/visibility", true)),
181 _x_offset(fgGetNode("/sim/panel/x-offset", true)),
182 _y_offset(fgGetNode("/sim/panel/y-offset", true)),
183 _jitter(fgGetNode("/sim/panel/jitter", true)),
184 _flipx(fgGetNode("/sim/panel/flip-x", true))
194 for (instrument_list_type::iterator it = _instruments.begin();
195 it != _instruments.end();
204 * Add an instrument to the panel.
207 FGPanel::addInstrument (FGPanelInstrument * instrument)
209 _instruments.push_back(instrument);
214 * Initialize the panel.
220 char* envp = ::getenv( "FG_FONTS" );
221 if ( envp != NULL ) {
222 base_path.set( envp );
224 base_path.set( globals->get_fg_root() );
225 base_path.append( "Fonts" );
230 // Install the default font
232 fntpath.append( "typewriter.txf" );
233 default_font = new fntTexFont ;
234 default_font -> load ( (char *)fntpath.c_str() ) ;
236 // Install the LED font
238 fntpath.append( "led.txf" );
239 led_font = new fntTexFont ;
240 led_font -> load ( (char *)fntpath.c_str() ) ;
245 * Bind panel properties.
250 fgSetArchivable("/sim/panel/visibility");
251 fgSetArchivable("/sim/panel/x-offset");
252 fgSetArchivable("/sim/panel/y-offset");
253 fgSetArchivable("/sim/panel/jitter");
258 * Unbind panel properties.
270 FGPanel::update (double dt)
272 // Do nothing if the panel isn't visible.
273 if ( !fgPanelVisible() ) {
279 // Now, draw the panel
280 float aspect_adjust = get_aspect_adjust(_xsize_node->getIntValue(),
281 _ysize_node->getIntValue());
282 if (aspect_adjust <1.0)
283 update(WIN_X, int(WIN_W * aspect_adjust), WIN_Y, WIN_H);
285 update(WIN_X, WIN_W, WIN_Y, int(WIN_H / aspect_adjust));
289 * Handle repeatable mouse events. Called from update() and from
290 * fgUpdate3DPanels(). This functionality needs to move into the
291 * input subsystem. Counting a tick every two frames is clumsy...
293 void FGPanel::updateMouseDelay()
297 if (_mouseDelay < 0) {
298 _mouseInstrument->doMouseAction(_mouseButton, 0, _mouseX, _mouseY);
306 FGPanel::update (GLfloat winx, GLfloat winw, GLfloat winy, GLfloat winh)
308 // Calculate accelerations
309 // and jiggle the panel accordingly
310 // The factors and bounds are just
311 // initial guesses; using sqrt smooths
313 double x_offset = _x_offset->getIntValue();
314 double y_offset = _y_offset->getIntValue();
317 if (_jitter->getFloatValue() != 0.0) {
318 double a_x_pilot = current_aircraft.fdm_state->get_A_X_pilot();
319 double a_y_pilot = current_aircraft.fdm_state->get_A_Y_pilot();
320 double a_z_pilot = current_aircraft.fdm_state->get_A_Z_pilot();
322 double a_zx_pilot = a_z_pilot - a_x_pilot;
324 int x_adjust = int(sqrt(fabs(a_y_pilot) * _jitter->getFloatValue())) *
325 (a_y_pilot < 0 ? -1 : 1);
326 int y_adjust = int(sqrt(fabs(a_zx_pilot) * _jitter->getFloatValue())) *
327 (a_zx_pilot < 0 ? -1 : 1);
329 // adjustments in screen coordinates
330 x_offset += x_adjust;
331 y_offset += y_adjust;
335 glMatrixMode(GL_PROJECTION);
338 if ( _flipx->getBoolValue() ) {
339 gluOrtho2D(winx + winw, winx, winy + winh, winy); /* up side down */
341 gluOrtho2D(winx, winx + winw, winy, winy + winh); /* right side up */
344 glMatrixMode(GL_MODELVIEW);
348 glTranslated(x_offset, y_offset, 0);
352 glMatrixMode(GL_PROJECTION);
354 glMatrixMode(GL_MODELVIEW);
357 ssgForceBasicState();
358 glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
364 // In 3D mode, it's possible that we are being drawn exactly on top
365 // of an existing polygon. Use an offset to prevent z-fighting. In
366 // 2D mode, this is a no-op.
367 glEnable(GL_POLYGON_OFFSET_FILL);
368 glPolygonOffset(-1, -POFF_UNITS);
371 glPushAttrib( GL_COLOR_BUFFER_BIT | GL_ENABLE_BIT | GL_LIGHTING_BIT
372 | GL_TEXTURE_BIT | GL_PIXEL_MODE_BIT );
374 // Draw the background
375 glEnable(GL_TEXTURE_2D);
376 glDisable(GL_LIGHTING);
378 glEnable(GL_ALPHA_TEST);
379 glEnable(GL_COLOR_MATERIAL);
381 sgCopyVec4( panel_color, cur_light_params.scene_diffuse );
382 if ( fgGetDouble("/systems/electrical/outputs/instrument-lights") > 1.0 ) {
383 if ( panel_color[0] < 0.7 ) panel_color[0] = 0.7;
384 if ( panel_color[1] < 0.2 ) panel_color[1] = 0.2;
385 if ( panel_color[2] < 0.2 ) panel_color[2] = 0.2;
387 glColor4fv( panel_color );
389 glBindTexture(GL_TEXTURE_2D, _bg->getHandle());
390 // glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
391 // glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
392 glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
394 glTexCoord2f(0.0, 0.0); glVertex2f(WIN_X, WIN_Y);
395 glTexCoord2f(1.0, 0.0); glVertex2f(WIN_X + _width, WIN_Y);
396 glTexCoord2f(1.0, 1.0); glVertex2f(WIN_X + _width, WIN_Y + _height);
397 glTexCoord2f(0.0, 1.0); glVertex2f(WIN_X, WIN_Y + _height);
400 for (int i = 0; i < 4; i ++) {
401 // top row of textures...(1,3,5,7)
402 glBindTexture(GL_TEXTURE_2D, _mbg[i*2]->getHandle());
403 glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
405 glTexCoord2f(0.0, 0.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y + (_height/2));
406 glTexCoord2f(1.0, 0.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y + (_height/2));
407 glTexCoord2f(1.0, 1.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y + _height);
408 glTexCoord2f(0.0, 1.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y + _height);
410 // bottom row of textures...(2,4,6,8)
411 glBindTexture(GL_TEXTURE_2D, _mbg[(i*2)+1]->getHandle());
412 glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
414 glTexCoord2f(0.0, 0.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y);
415 glTexCoord2f(1.0, 0.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y);
416 glTexCoord2f(1.0, 1.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y + (_height/2));
417 glTexCoord2f(0.0, 1.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y + (_height/2));
422 // Draw the instruments.
423 instrument_list_type::const_iterator current = _instruments.begin();
424 instrument_list_type::const_iterator end = _instruments.end();
426 for ( ; current != end; current++) {
427 FGPanelInstrument * instr = *current;
429 glTranslated(instr->getXPos(), instr->getYPos(), 0);
434 // Draw yellow "hotspots" if directed to. This is a panel authoring
435 // feature; not intended to be high performance or to look good.
436 if(fgGetBool("/sim/panel-hotspots")) {
437 glPushAttrib(GL_ALL_ATTRIB_BITS);
438 glDisable(GL_DEPTH_TEST);
439 glDisable(GL_TEXTURE_2D);
442 for(int i=0; i<_instruments.size(); i++)
443 _instruments[i]->drawHotspots();
449 // restore some original state
451 glPolygonOffset(0, 0);
452 glDisable(GL_POLYGON_OFFSET_FILL);
456 * Set the panel's visibility.
459 FGPanel::setVisibility (bool visibility)
461 _visibility->setBoolValue( visibility );
466 * Return true if the panel is visible.
469 FGPanel::getVisibility () const
471 return _visibility->getBoolValue();
476 * Set the panel's background texture.
479 FGPanel::setBackground (ssgTexture * texture)
485 * Set the panel's multiple background textures.
488 FGPanel::setMultiBackground (ssgTexture * texture, int idx)
495 * Set the panel's x-offset.
498 FGPanel::setXOffset (int offset)
500 if (offset <= 0 && offset >= -_width + WIN_W)
501 _x_offset->setIntValue( offset );
506 * Set the panel's y-offset.
509 FGPanel::setYOffset (int offset)
511 if (offset <= 0 && offset >= -_height)
512 _y_offset->setIntValue( offset );
516 * Handle a mouse action in panel-local (not screen) coordinates.
517 * Used by the 3D panel code in Model/panelnode.cxx, in situations
518 * where the panel doesn't control its own screen location.
521 FGPanel::doLocalMouseAction(int button, int updown, int x, int y)
523 // Note a released button and return
525 if (_mouseInstrument != 0)
526 _mouseInstrument->doMouseAction(_mouseButton, 1, _mouseX, _mouseY);
528 _mouseInstrument = 0;
532 // Search for a matching instrument.
533 for (int i = 0; i < (int)_instruments.size(); i++) {
534 FGPanelInstrument *inst = _instruments[i];
535 int ix = inst->getXPos();
536 int iy = inst->getYPos();
537 int iw = inst->getWidth() / 2;
538 int ih = inst->getHeight() / 2;
539 if (x >= ix - iw && x < ix + iw && y >= iy - ih && y < iy + ih) {
542 _mouseInstrument = inst;
543 _mouseButton = button;
546 // Always do the action once.
547 return _mouseInstrument->doMouseAction(_mouseButton, 0,
555 * Perform a mouse action.
558 FGPanel::doMouseAction (int button, int updown, int x, int y)
560 // FIXME: this same code appears in update()
561 int xsize = _xsize_node->getIntValue();
562 int ysize = _ysize_node->getIntValue();
563 float aspect_adjust = get_aspect_adjust(xsize, ysize);
565 // Scale for the real window size.
566 if (aspect_adjust < 1.0) {
567 x = int(((float)x / xsize) * WIN_W * aspect_adjust);
568 y = int(WIN_H - ((float(y) / ysize) * WIN_H));
570 x = int(((float)x / xsize) * WIN_W);
571 y = int((WIN_H - ((float(y) / ysize) * WIN_H)) / aspect_adjust);
574 // Adjust for offsets.
575 x -= _x_offset->getIntValue();
576 y -= _y_offset->getIntValue();
578 // Having fixed up the coordinates, fall through to the local
579 // coordinate handler.
580 return doLocalMouseAction(button, updown, x, y);
585 ////////////////////////////////////////////////////////////////////////.
586 // Implementation of FGPanelAction.
587 ////////////////////////////////////////////////////////////////////////
589 FGPanelAction::FGPanelAction ()
593 FGPanelAction::FGPanelAction (int button, int x, int y, int w, int h,
595 : _button(button), _x(x), _y(y), _w(w), _h(h), _repeatable(repeatable)
597 for (unsigned int i = 0; i < 2; i++) {
598 for (unsigned int j = 0; j < _bindings[i].size(); j++)
599 delete _bindings[i][j];
603 FGPanelAction::~FGPanelAction ()
608 FGPanelAction::addBinding (FGBinding * binding, int updown)
610 _bindings[updown].push_back(binding);
614 FGPanelAction::doAction (int updown)
617 if ((updown != _last_state) || (updown == 0 && _repeatable)) {
618 int nBindings = _bindings[updown].size();
619 for (int i = 0; i < nBindings; i++)
620 _bindings[updown][i]->fire();
622 _last_state = updown;
631 ////////////////////////////////////////////////////////////////////////
632 // Implementation of FGPanelTransformation.
633 ////////////////////////////////////////////////////////////////////////
635 FGPanelTransformation::FGPanelTransformation ()
640 FGPanelTransformation::~FGPanelTransformation ()
647 ////////////////////////////////////////////////////////////////////////
648 // Implementation of FGPanelInstrument.
649 ////////////////////////////////////////////////////////////////////////
652 FGPanelInstrument::FGPanelInstrument ()
658 FGPanelInstrument::FGPanelInstrument (int x, int y, int w, int h)
664 FGPanelInstrument::~FGPanelInstrument ()
666 for (action_list_type::iterator it = _actions.begin();
667 it != _actions.end();
675 FGPanelInstrument::drawHotspots()
677 for(int i=0; i<_actions.size(); i++) {
678 FGPanelAction* a = _actions[i];
679 float x1 = getXPos() + a->getX();
680 float x2 = x1 + a->getWidth();
681 float y1 = getYPos() + a->getY();
682 float y2 = y1 + a->getHeight();
684 glBegin(GL_LINE_LOOP);
694 FGPanelInstrument::setPosition (int x, int y)
701 FGPanelInstrument::setSize (int w, int h)
708 FGPanelInstrument::getXPos () const
714 FGPanelInstrument::getYPos () const
720 FGPanelInstrument::getWidth () const
726 FGPanelInstrument::getHeight () const
732 FGPanelInstrument::addAction (FGPanelAction * action)
734 _actions.push_back(action);
737 // Coordinates relative to centre.
739 FGPanelInstrument::doMouseAction (int button, int updown, int x, int y)
742 action_list_type::iterator it = _actions.begin();
743 action_list_type::iterator last = _actions.end();
744 for ( ; it != last; it++) {
745 if ((*it)->inArea(button, x, y) &&
746 (*it)->doAction(updown))
755 ////////////////////////////////////////////////////////////////////////
756 // Implementation of FGLayeredInstrument.
757 ////////////////////////////////////////////////////////////////////////
759 FGLayeredInstrument::FGLayeredInstrument (int x, int y, int w, int h)
760 : FGPanelInstrument(x, y, w, h)
764 FGLayeredInstrument::~FGLayeredInstrument ()
766 for (layer_list::iterator it = _layers.begin(); it != _layers.end(); it++) {
773 FGLayeredInstrument::draw ()
778 for (int i = 0; i < (int)_layers.size(); i++) {
780 glPolygonOffset(-1, -POFF_UNITS*(i+2));
787 FGLayeredInstrument::addLayer (FGInstrumentLayer *layer)
789 int n = _layers.size();
790 if (layer->getWidth() == -1) {
791 layer->setWidth(getWidth());
793 if (layer->getHeight() == -1) {
794 layer->setHeight(getHeight());
796 _layers.push_back(layer);
801 FGLayeredInstrument::addLayer (FGCroppedTexture &texture,
804 return addLayer(new FGTexturedLayer(texture, w, h));
808 FGLayeredInstrument::addTransformation (FGPanelTransformation * transformation)
810 int layer = _layers.size() - 1;
811 _layers[layer]->addTransformation(transformation);
816 ////////////////////////////////////////////////////////////////////////
817 // Implementation of FGInstrumentLayer.
818 ////////////////////////////////////////////////////////////////////////
820 FGInstrumentLayer::FGInstrumentLayer (int w, int h)
826 FGInstrumentLayer::~FGInstrumentLayer ()
828 for (transformation_list::iterator it = _transformations.begin();
829 it != _transformations.end();
837 FGInstrumentLayer::transform () const
839 transformation_list::const_iterator it = _transformations.begin();
840 transformation_list::const_iterator last = _transformations.end();
842 FGPanelTransformation *t = *it;
844 float val = (t->node == 0 ? 0.0 : t->node->getFloatValue());
847 val = fmod(val, t->mod);
850 } else if (val > t->max) {
855 val = val * t->factor + t->offset;
857 val = t->table->interpolate(val) * t->factor + t->offset;
861 case FGPanelTransformation::XSHIFT:
862 glTranslatef(val, 0.0, 0.0);
864 case FGPanelTransformation::YSHIFT:
865 glTranslatef(0.0, val, 0.0);
867 case FGPanelTransformation::ROTATION:
868 glRotatef(-val, 0.0, 0.0, 1.0);
877 FGInstrumentLayer::addTransformation (FGPanelTransformation * transformation)
879 _transformations.push_back(transformation);
884 ////////////////////////////////////////////////////////////////////////
885 // Implementation of FGGroupLayer.
886 ////////////////////////////////////////////////////////////////////////
888 FGGroupLayer::FGGroupLayer ()
892 FGGroupLayer::~FGGroupLayer ()
894 for (unsigned int i = 0; i < _layers.size(); i++)
899 FGGroupLayer::draw ()
903 int nLayers = _layers.size();
904 for (int i = 0; i < nLayers; i++)
910 FGGroupLayer::addLayer (FGInstrumentLayer * layer)
912 _layers.push_back(layer);
917 ////////////////////////////////////////////////////////////////////////
918 // Implementation of FGTexturedLayer.
919 ////////////////////////////////////////////////////////////////////////
922 FGTexturedLayer::FGTexturedLayer (const FGCroppedTexture &texture, int w, int h)
923 : FGInstrumentLayer(w, h)
929 FGTexturedLayer::~FGTexturedLayer ()
935 FGTexturedLayer::draw ()
942 glBindTexture(GL_TEXTURE_2D, _texture.getTexture()->getHandle());
945 // From Curt: turn on the panel
946 // lights after sundown.
948 sgCopyVec4( panel_color, cur_light_params.scene_diffuse );
949 if ( fgGetDouble("/systems/electrical/outputs/instrument-lights") > 1.0 ) {
950 if ( panel_color[0] < 0.7 ) panel_color[0] = 0.7;
951 if ( panel_color[1] < 0.2 ) panel_color[1] = 0.2;
952 if ( panel_color[2] < 0.2 ) panel_color[2] = 0.2;
954 glColor4fv( panel_color );
956 glTexCoord2f(_texture.getMinX(), _texture.getMinY()); glVertex2f(-w2, -h2);
957 glTexCoord2f(_texture.getMaxX(), _texture.getMinY()); glVertex2f(w2, -h2);
958 glTexCoord2f(_texture.getMaxX(), _texture.getMaxY()); glVertex2f(w2, h2);
959 glTexCoord2f(_texture.getMinX(), _texture.getMaxY()); glVertex2f(-w2, h2);
966 ////////////////////////////////////////////////////////////////////////
967 // Implementation of FGTextLayer.
968 ////////////////////////////////////////////////////////////////////////
970 FGTextLayer::FGTextLayer (int w, int h)
971 : FGInstrumentLayer(w, h), _pointSize(14.0), _font_name("default")
974 _color[0] = _color[1] = _color[2] = 0.0;
978 FGTextLayer::~FGTextLayer ()
980 chunk_list::iterator it = _chunks.begin();
981 chunk_list::iterator last = _chunks.end();
982 for ( ; it != last; it++) {
993 if ( _font_name == "led" && led_font != 0) {
994 text_renderer.setFont(led_font);
996 text_renderer.setFont(guiFntHandle);
998 text_renderer.setPointSize(_pointSize);
999 text_renderer.begin();
1000 text_renderer.start3f(0, 0, 0);
1003 long diff = _now - _then;
1005 if (diff > 100000 || diff < 0 ) {
1006 // ( diff < 0 ) is a sanity check and indicates our time stamp
1007 // difference math probably overflowed. We can handle a max
1008 // difference of 35.8 minutes since the returned value is in
1009 // usec. So if the panel is left off longer than that we can
1010 // over flow the math with it is turned back on. This (diff <
1011 // 0) catches that situation, get's us out of trouble, and
1017 // Something is goofy. The code in this file renders only CCW
1018 // polygons, and I have verified that the font code in plib
1019 // renders only CCW trianbles. Yet they come out backwards.
1020 // Something around here or in plib is either changing the winding
1021 // order or (more likely) pushing a left-handed matrix onto the
1022 // stack. But I can't find it; get out the chainsaw...
1024 text_renderer.puts((char *)(_value.c_str()));
1025 glFrontFace(GL_CCW);
1027 text_renderer.end();
1028 glColor4f(1.0, 1.0, 1.0, 1.0); // FIXME
1033 FGTextLayer::addChunk (FGTextLayer::Chunk * chunk)
1035 _chunks.push_back(chunk);
1039 FGTextLayer::setColor (float r, float g, float b)
1048 FGTextLayer::setPointSize (float size)
1054 FGTextLayer::setFontName(const string &name)
1061 FGTextLayer::setFont(fntFont * font)
1063 text_renderer.setFont(font);
1068 FGTextLayer::recalc_value () const
1071 chunk_list::const_iterator it = _chunks.begin();
1072 chunk_list::const_iterator last = _chunks.end();
1073 for ( ; it != last; it++) {
1074 _value += (*it)->getValue();
1080 ////////////////////////////////////////////////////////////////////////
1081 // Implementation of FGTextLayer::Chunk.
1082 ////////////////////////////////////////////////////////////////////////
1084 FGTextLayer::Chunk::Chunk (const string &text, const string &fmt)
1085 : _type(FGTextLayer::TEXT), _fmt(fmt)
1092 FGTextLayer::Chunk::Chunk (ChunkType type, const SGPropertyNode * node,
1093 const string &fmt, float mult)
1094 : _type(type), _fmt(fmt), _mult(mult)
1097 if (type == TEXT_VALUE)
1106 FGTextLayer::Chunk::getValue () const
1112 sprintf(_buf, _fmt.c_str(), _text.c_str());
1115 sprintf(_buf, _fmt.c_str(), _node->getStringValue());
1118 sprintf(_buf, _fmt.c_str(), _node->getFloatValue() * _mult);
1129 ////////////////////////////////////////////////////////////////////////
1130 // Implementation of FGSwitchLayer.
1131 ////////////////////////////////////////////////////////////////////////
1133 FGSwitchLayer::FGSwitchLayer ()
1139 FGSwitchLayer::draw ()
1143 int nLayers = _layers.size();
1144 for (int i = 0; i < nLayers; i++) {
1145 if (_layers[i]->test()) {