972 lines
23 KiB
C++
972 lines
23 KiB
C++
// panel.cxx - default, 2D single-engine prop instrument panel
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//
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// Written by David Megginson, started January 2000.
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// $Id: panel.cxx,v 1.44 2006/09/05 20:28:48 curt Exp $
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#ifdef HAVE_WINDOWS_H
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# include <windows.h>
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#endif
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#include <stdio.h> // sprintf
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#include <string.h>
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#include <simgear/compiler.h>
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#if defined (SG_MAC)
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#include <GLUT/glut.h>
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#else
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#include <GL/glut.h>
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#endif
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#include <plib/fnt.h>
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#include <simgear/debug/logstream.hxx>
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#include <simgear/math/SGMath.hxx>
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#include <simgear/misc/sg_path.hxx>
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#include "panel.hxx"
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#include "ApplicationProperties.hxx"
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////////////////////////////////////////////////////////////////////////
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// Local functions.
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////////////////////////////////////////////////////////////////////////
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class FGDummyTextureLoader : public FGTextureLoaderInterface {
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public:
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virtual GLuint loadTexture( const string & filename );
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};
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GLuint FGDummyTextureLoader::loadTexture( const string & filename )
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{
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GLuint _texture = 0;
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glGenTextures( 1, &_texture );
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glBindTexture( GL_TEXTURE_2D, _texture );
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// glTexEnvi ( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ) ;
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// glTexParameteri ( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR ) ;
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// glTexParameteri ( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR ) ;
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// glTexParameteri ( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT ) ;
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// glTexParameteri ( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT ) ;
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GLubyte image[ 2 * 2 * 3 ] ;
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/* Red and white chequerboard */
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image [ 0 ] = 255 ; image [ 1 ] = 0 ; image [ 2 ] = 0 ;
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image [ 3 ] = 255 ; image [ 4 ] = 255 ; image [ 5 ] = 255 ;
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image [ 6 ] = 255 ; image [ 7 ] = 255 ; image [ 8 ] = 255 ;
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image [ 9 ] = 255 ; image [ 10] = 0 ; image [ 11] = 0 ;
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glTexImage2D(GL_TEXTURE_2D,0, GL_RGB, 2, 2, 0,
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GL_RGB, GL_UNSIGNED_BYTE, (GLvoid*) image);
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return _texture;
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}
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////////////////////////////////////////////////////////////////////////
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// Implementation of FGCropped Texture.
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////////////////////////////////////////////////////////////////////////
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GLuint FGCroppedTexture::current_bound_texture = 0;
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map<string,GLuint> FGCroppedTexture::cache;
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map<string,FGTextureLoaderInterface*> FGCroppedTexture::textureLoader;
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static FGDummyTextureLoader dummyTextureLoader;
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FGCroppedTexture::FGCroppedTexture (const string &path,
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float minX, float minY,
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float maxX, float maxY)
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: _path(path),
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_minX(minX), _minY(minY), _maxX(maxX), _maxY(maxY), _texture(0)
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{
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}
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FGCroppedTexture::~FGCroppedTexture ()
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{
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}
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void FGCroppedTexture::bind( bool doGLBind )
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{
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if( _texture == 0 ) {
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SG_LOG( SG_COCKPIT, SG_DEBUG, "First bind of texture " << _path );
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if( cache.count(_path) > 0 ) {
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_texture = cache[_path];
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SG_LOG( SG_COCKPIT, SG_DEBUG, "Using texture " << _path << " from cache (#" << _texture << ")" );
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} else {
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SGPath tpath = ApplicationProperties::GetRootPath(_path.c_str());
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string extension = tpath.extension();
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FGTextureLoaderInterface * loader = &dummyTextureLoader;
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if( textureLoader.count( extension ) == 0 ) {
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SG_LOG( SG_COCKPIT, SG_ALERT, "Can't handle textures of type " << extension );
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} else {
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loader = textureLoader[extension];
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}
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_texture = loader->loadTexture( tpath.c_str() );
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SG_LOG( SG_COCKPIT, SG_DEBUG, "Texture " << tpath.c_str() << " loaded from file as #" << _texture );
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cache[_path] = _texture;
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}
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}
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if( !doGLBind || current_bound_texture == _texture )
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return;
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glBindTexture( GL_TEXTURE_2D, _texture );
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current_bound_texture = _texture;
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}
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////////////////////////////////////////////////////////////////////////
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// Implementation of FGPanel.
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////////////////////////////////////////////////////////////////////////
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/**
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* Constructor.
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*/
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FGPanel::FGPanel ( SGPropertyNode_ptr root)
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: _root(root),
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_flipx(root->getNode("/sim/panel/flip-x", true)),
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_rotate(root->getNode("/sim/panel/rotate-deg", true)),
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_bg_width(1.0), _bg_height(1.0),
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initDisplayList(0)
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{
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}
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/**
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* Destructor.
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*/
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FGPanel::~FGPanel ()
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{
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for (instrument_list_type::iterator it = _instruments.begin();
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it != _instruments.end();
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it++) {
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delete *it;
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*it = 0;
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}
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}
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/**
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* Add an instrument to the panel.
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*/
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void
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FGPanel::addInstrument (FGPanelInstrument * instrument)
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{
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_instruments.push_back(instrument);
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}
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/**
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* Initialize the panel.
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*/
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void
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FGPanel::init ()
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{
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}
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/**
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* Bind panel properties.
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*/
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void
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FGPanel::bind ()
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{
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}
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/**
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* Unbind panel properties.
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*/
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void
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FGPanel::unbind ()
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{
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}
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GLuint FGPanel::getInitDisplayList()
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{
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if( initDisplayList != 0 ) return initDisplayList;
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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if ( _flipx->getBoolValue() ) {
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gluOrtho2D( _width, 0, _height, 0 ); /* up side down */
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} else {
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gluOrtho2D( 0, _width, 0, _height ); /* right side up */
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}
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glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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glClear( GL_COLOR_BUFFER_BIT);
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// save some state
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glPushAttrib( GL_COLOR_BUFFER_BIT | GL_ENABLE_BIT | GL_LIGHTING_BIT
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| GL_TEXTURE_BIT | GL_PIXEL_MODE_BIT | GL_CULL_FACE
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| GL_DEPTH_BUFFER_BIT );
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// Draw the background
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glEnable(GL_TEXTURE_2D);
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glDisable(GL_LIGHTING);
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
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glEnable(GL_ALPHA_TEST);
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glEnable(GL_COLOR_MATERIAL);
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glEnable(GL_CULL_FACE);
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glCullFace(GL_BACK);
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glDisable(GL_DEPTH_TEST);
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if (_bg != NULL) {
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_bg->bind();
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// glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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glBegin(GL_QUADS);
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glTexCoord2f(0.0, 0.0); glVertex2f(0, 0);
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glTexCoord2f(_bg_width, 0.0); glVertex2f(_width, 0);
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glTexCoord2f(_bg_width, _bg_height); glVertex2f(_width, _height);
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glTexCoord2f(0.0, _bg_height); glVertex2f(0, _height);
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glEnd();
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} else if( _mbg[0] != NULL ) {
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for (int i = 0; i < 4; i ++) {
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// top row of textures...(1,3,5,7)
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_mbg[i*2]->bind();
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// glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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glBegin(GL_QUADS);
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glTexCoord2f(0.0, 0.0); glVertex2f(i*_width/4, _height/2);
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glTexCoord2f(1.0, 0.0); glVertex2f((i+1)*_width/4, _height/2);
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glTexCoord2f(1.0, 1.0); glVertex2f((i+1)*_width/4, _height);
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glTexCoord2f(0.0, 1.0); glVertex2f(i*_width/4, _height);
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glEnd();
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// bottom row of textures...(2,4,6,8)
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_mbg[i*2+1]->bind();
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// glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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glBegin(GL_QUADS);
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glTexCoord2f(0.0, 0.0); glVertex2f( i*_width/4, 0);
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glTexCoord2f(1.0, 0.0); glVertex2f( (i+1)*_width/4, 0);
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glTexCoord2f(1.0, 1.0); glVertex2f( (i+1)*_width/4, _height/2);
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glTexCoord2f(0.0, 1.0); glVertex2f( i*_width/4, _height/2);
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glEnd();
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}
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} else {
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float c[4];
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glGetFloatv( GL_CURRENT_COLOR, c );
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glColor4f( 0.0, 0.0, 0.0, 1.0 );
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glBegin(GL_QUADS);
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glVertex2f(0, 0);
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glVertex2f(_width, 0);
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glVertex2f(_width, _height);
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glVertex2f(0, _height);
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glEnd();
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glColor4fv( c );
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}
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return initDisplayList;
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}
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void
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FGPanel::update (double dt)
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{
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/*glCallList*/(getInitDisplayList());
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// Draw the instruments.
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// Syd Adams: added instrument clipping
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instrument_list_type::const_iterator current = _instruments.begin();
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instrument_list_type::const_iterator end = _instruments.end();
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GLdouble blx[4]={1.0,0.0,0.0,0.0};
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GLdouble bly[4]={0.0,1.0,0.0,0.0};
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GLdouble urx[4]={-1.0,0.0,0.0,0.0};
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GLdouble ury[4]={0.0,-1.0,0.0,0.0};
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for ( ; current != end; current++) {
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FGPanelInstrument * instr = *current;
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glPushMatrix();
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glTranslated(instr->getXPos(), instr->getYPos(), 0);
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int ix= instr->getWidth();
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int iy= instr->getHeight();
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glPushMatrix();
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glTranslated(-ix/2,-iy/2,0);
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glClipPlane(GL_CLIP_PLANE0,blx);
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glClipPlane(GL_CLIP_PLANE1,bly);
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glEnable(GL_CLIP_PLANE0);
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glEnable(GL_CLIP_PLANE1);
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glTranslated(ix,iy,0);
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glClipPlane(GL_CLIP_PLANE2,urx);
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glClipPlane(GL_CLIP_PLANE3,ury);
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glEnable(GL_CLIP_PLANE2);
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glEnable(GL_CLIP_PLANE3);
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glPopMatrix();
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instr->draw();
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glPopMatrix();
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}
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glDisable(GL_CLIP_PLANE0);
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glDisable(GL_CLIP_PLANE1);
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glDisable(GL_CLIP_PLANE2);
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glDisable(GL_CLIP_PLANE3);
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// restore some original state
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glPopAttrib();
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}
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#if 0
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/**
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* Update the panel.
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*/
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void
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FGPanel::update (double dt)
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{
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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if ( _flipx->getBoolValue() ) {
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gluOrtho2D( _width, 0, _height, 0 ); /* up side down */
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} else {
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gluOrtho2D( 0, _width, 0, _height ); /* right side up */
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}
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glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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draw();
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}
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void FGPanel::draw()
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{
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glClear( GL_COLOR_BUFFER_BIT);
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// save some state
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glPushAttrib( GL_COLOR_BUFFER_BIT | GL_ENABLE_BIT | GL_LIGHTING_BIT
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| GL_TEXTURE_BIT | GL_PIXEL_MODE_BIT | GL_CULL_FACE
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| GL_DEPTH_BUFFER_BIT );
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// Draw the background
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glEnable(GL_TEXTURE_2D);
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glDisable(GL_LIGHTING);
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
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glEnable(GL_ALPHA_TEST);
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glEnable(GL_COLOR_MATERIAL);
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glEnable(GL_CULL_FACE);
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glCullFace(GL_BACK);
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glDisable(GL_DEPTH_TEST);
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if (_bg != NULL) {
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_bg->bind();
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// glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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glBegin(GL_QUADS);
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glTexCoord2f(0.0, 0.0); glVertex2f(0, 0);
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glTexCoord2f(_bg_width, 0.0); glVertex2f(_width, 0);
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glTexCoord2f(_bg_width, _bg_height); glVertex2f(_width, _height);
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glTexCoord2f(0.0, _bg_height); glVertex2f(0, _height);
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glEnd();
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} else if( _mbg[0] != NULL ) {
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for (int i = 0; i < 4; i ++) {
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// top row of textures...(1,3,5,7)
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_mbg[i*2]->bind();
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// glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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glBegin(GL_QUADS);
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glTexCoord2f(0.0, 0.0); glVertex2f(i*_width/4, _height/2);
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glTexCoord2f(1.0, 0.0); glVertex2f((i+1)*_width/4, _height/2);
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glTexCoord2f(1.0, 1.0); glVertex2f((i+1)*_width/4, _height);
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glTexCoord2f(0.0, 1.0); glVertex2f(i*_width/4, _height);
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glEnd();
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// bottom row of textures...(2,4,6,8)
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_mbg[i*2+1]->bind();
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// glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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glBegin(GL_QUADS);
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glTexCoord2f(0.0, 0.0); glVertex2f( i*_width/4, 0);
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glTexCoord2f(1.0, 0.0); glVertex2f( (i+1)*_width/4, 0);
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glTexCoord2f(1.0, 1.0); glVertex2f( (i+1)*_width/4, _height/2);
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glTexCoord2f(0.0, 1.0); glVertex2f( i*_width/4, _height/2);
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glEnd();
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}
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} else {
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float c[4];
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glGetFloatv( GL_CURRENT_COLOR, c );
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glColor4f( 0.0, 0.0, 0.0, 1.0 );
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glBegin(GL_QUADS);
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glVertex2f(0, 0);
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glVertex2f(_width, 0);
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glVertex2f(_width, _height);
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glVertex2f(0, _height);
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glEnd();
|
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glColor4fv( c );
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}
|
||
|
||
// Draw the instruments.
|
||
// Syd Adams: added instrument clipping
|
||
instrument_list_type::const_iterator current = _instruments.begin();
|
||
instrument_list_type::const_iterator end = _instruments.end();
|
||
|
||
GLdouble blx[4]={1.0,0.0,0.0,0.0};
|
||
GLdouble bly[4]={0.0,1.0,0.0,0.0};
|
||
GLdouble urx[4]={-1.0,0.0,0.0,0.0};
|
||
GLdouble ury[4]={0.0,-1.0,0.0,0.0};
|
||
|
||
for ( ; current != end; current++) {
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||
FGPanelInstrument * instr = *current;
|
||
glPushMatrix();
|
||
glTranslated(instr->getXPos(), instr->getYPos(), 0);
|
||
|
||
int ix= instr->getWidth();
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||
int iy= instr->getHeight();
|
||
glPushMatrix();
|
||
glTranslated(-ix/2,-iy/2,0);
|
||
glClipPlane(GL_CLIP_PLANE0,blx);
|
||
glClipPlane(GL_CLIP_PLANE1,bly);
|
||
glEnable(GL_CLIP_PLANE0);
|
||
glEnable(GL_CLIP_PLANE1);
|
||
|
||
glTranslated(ix,iy,0);
|
||
glClipPlane(GL_CLIP_PLANE2,urx);
|
||
glClipPlane(GL_CLIP_PLANE3,ury);
|
||
glEnable(GL_CLIP_PLANE2);
|
||
glEnable(GL_CLIP_PLANE3);
|
||
glPopMatrix();
|
||
instr->draw();
|
||
|
||
glPopMatrix();
|
||
}
|
||
|
||
glDisable(GL_CLIP_PLANE0);
|
||
glDisable(GL_CLIP_PLANE1);
|
||
glDisable(GL_CLIP_PLANE2);
|
||
glDisable(GL_CLIP_PLANE3);
|
||
|
||
// restore some original state
|
||
glPopAttrib();
|
||
}
|
||
#endif
|
||
|
||
/**
|
||
* Set the panel's background texture.
|
||
*/
|
||
void
|
||
FGPanel::setBackground (FGCroppedTexture_ptr texture)
|
||
{
|
||
_bg = texture;
|
||
}
|
||
|
||
/**
|
||
* Set the panel's multiple background textures.
|
||
*/
|
||
void
|
||
FGPanel::setMultiBackground (FGCroppedTexture_ptr texture, int idx)
|
||
{
|
||
_bg = 0;
|
||
_mbg[idx] = texture;
|
||
}
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of FGPanelTransformation.
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
FGPanelTransformation::FGPanelTransformation ()
|
||
: table(0)
|
||
{
|
||
}
|
||
|
||
FGPanelTransformation::~FGPanelTransformation ()
|
||
{
|
||
delete table;
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of FGPanelInstrument.
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
|
||
FGPanelInstrument::FGPanelInstrument ()
|
||
{
|
||
setPosition(0, 0);
|
||
setSize(0, 0);
|
||
}
|
||
|
||
FGPanelInstrument::FGPanelInstrument (int x, int y, int w, int h)
|
||
{
|
||
setPosition(x, y);
|
||
setSize(w, h);
|
||
}
|
||
|
||
FGPanelInstrument::~FGPanelInstrument ()
|
||
{
|
||
}
|
||
|
||
void
|
||
FGPanelInstrument::setPosition (int x, int y)
|
||
{
|
||
_x = x;
|
||
_y = y;
|
||
}
|
||
|
||
void
|
||
FGPanelInstrument::setSize (int w, int h)
|
||
{
|
||
_w = w;
|
||
_h = h;
|
||
}
|
||
|
||
int
|
||
FGPanelInstrument::getXPos () const
|
||
{
|
||
return _x;
|
||
}
|
||
|
||
int
|
||
FGPanelInstrument::getYPos () const
|
||
{
|
||
return _y;
|
||
}
|
||
|
||
int
|
||
FGPanelInstrument::getWidth () const
|
||
{
|
||
return _w;
|
||
}
|
||
|
||
int
|
||
FGPanelInstrument::getHeight () const
|
||
{
|
||
return _h;
|
||
}
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of FGLayeredInstrument.
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
FGLayeredInstrument::FGLayeredInstrument (int x, int y, int w, int h)
|
||
: FGPanelInstrument(x, y, w, h)
|
||
{
|
||
}
|
||
|
||
FGLayeredInstrument::~FGLayeredInstrument ()
|
||
{
|
||
for (layer_list::iterator it = _layers.begin(); it != _layers.end(); it++) {
|
||
delete *it;
|
||
*it = 0;
|
||
}
|
||
}
|
||
|
||
void
|
||
FGLayeredInstrument::draw ()
|
||
{
|
||
if (!test())
|
||
return;
|
||
|
||
for (int i = 0; i < (int)_layers.size(); i++) {
|
||
glPushMatrix();
|
||
_layers[i]->draw();
|
||
glPopMatrix();
|
||
}
|
||
}
|
||
|
||
int
|
||
FGLayeredInstrument::addLayer (FGInstrumentLayer *layer)
|
||
{
|
||
int n = _layers.size();
|
||
if (layer->getWidth() == -1) {
|
||
layer->setWidth(getWidth());
|
||
}
|
||
if (layer->getHeight() == -1) {
|
||
layer->setHeight(getHeight());
|
||
}
|
||
_layers.push_back(layer);
|
||
return n;
|
||
}
|
||
|
||
int
|
||
FGLayeredInstrument::addLayer (FGCroppedTexture_ptr texture, int w, int h)
|
||
{
|
||
return addLayer(new FGTexturedLayer(texture, w, h));
|
||
}
|
||
|
||
void
|
||
FGLayeredInstrument::addTransformation (FGPanelTransformation * transformation)
|
||
{
|
||
int layer = _layers.size() - 1;
|
||
_layers[layer]->addTransformation(transformation);
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of FGInstrumentLayer.
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
FGInstrumentLayer::FGInstrumentLayer (int w, int h)
|
||
: _w(w),
|
||
_h(h)
|
||
{
|
||
}
|
||
|
||
FGInstrumentLayer::~FGInstrumentLayer ()
|
||
{
|
||
for (transformation_list::iterator it = _transformations.begin();
|
||
it != _transformations.end();
|
||
it++) {
|
||
delete *it;
|
||
*it = 0;
|
||
}
|
||
}
|
||
|
||
void
|
||
FGInstrumentLayer::transform () const
|
||
{
|
||
transformation_list::const_iterator it = _transformations.begin();
|
||
transformation_list::const_iterator last = _transformations.end();
|
||
while (it != last) {
|
||
FGPanelTransformation *t = *it;
|
||
if (t->test()) {
|
||
float val = (t->node == 0 ? 0.0 : t->node->getFloatValue());
|
||
|
||
if (t->has_mod)
|
||
val = fmod(val, t->mod);
|
||
if (val < t->min) {
|
||
val = t->min;
|
||
} else if (val > t->max) {
|
||
val = t->max;
|
||
}
|
||
|
||
if (t->table==0) {
|
||
val = val * t->factor + t->offset;
|
||
} else {
|
||
val = t->table->interpolate(val) * t->factor + t->offset;
|
||
}
|
||
|
||
switch (t->type) {
|
||
case FGPanelTransformation::XSHIFT:
|
||
glTranslatef(val, 0.0, 0.0);
|
||
break;
|
||
case FGPanelTransformation::YSHIFT:
|
||
glTranslatef(0.0, val, 0.0);
|
||
break;
|
||
case FGPanelTransformation::ROTATION:
|
||
glRotatef(-val, 0.0, 0.0, 1.0);
|
||
break;
|
||
}
|
||
}
|
||
it++;
|
||
}
|
||
}
|
||
|
||
void
|
||
FGInstrumentLayer::addTransformation (FGPanelTransformation * transformation)
|
||
{
|
||
_transformations.push_back(transformation);
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of FGGroupLayer.
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
FGGroupLayer::FGGroupLayer ()
|
||
{
|
||
}
|
||
|
||
FGGroupLayer::~FGGroupLayer ()
|
||
{
|
||
for (unsigned int i = 0; i < _layers.size(); i++)
|
||
delete _layers[i];
|
||
}
|
||
|
||
void
|
||
FGGroupLayer::draw ()
|
||
{
|
||
if (test()) {
|
||
transform();
|
||
int nLayers = _layers.size();
|
||
for (int i = 0; i < nLayers; i++)
|
||
_layers[i]->draw( );
|
||
}
|
||
}
|
||
|
||
void
|
||
FGGroupLayer::addLayer (FGInstrumentLayer * layer)
|
||
{
|
||
_layers.push_back(layer);
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of FGTexturedLayer.
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
|
||
FGTexturedLayer::FGTexturedLayer (FGCroppedTexture_ptr texture, int w, int h)
|
||
: FGInstrumentLayer(w, h),
|
||
_emissive(false),
|
||
displayList(0)
|
||
{
|
||
setTexture(texture);
|
||
}
|
||
|
||
|
||
FGTexturedLayer::~FGTexturedLayer ()
|
||
{
|
||
}
|
||
|
||
GLuint
|
||
FGTexturedLayer::getDisplayList()
|
||
{
|
||
if( displayList != 0 )
|
||
return displayList;
|
||
|
||
int w2 = _w / 2;
|
||
int h2 = _h / 2;
|
||
|
||
_texture->bind( false );
|
||
displayList = glGenLists(1);
|
||
glNewList(displayList,GL_COMPILE_AND_EXECUTE);
|
||
glBindTexture( GL_TEXTURE_2D, _texture->getTexture() );
|
||
glBegin(GL_QUADS);
|
||
glTexCoord2f(_texture->getMinX(), _texture->getMinY()); glVertex2f(-w2, -h2);
|
||
glTexCoord2f(_texture->getMaxX(), _texture->getMinY()); glVertex2f(w2, -h2);
|
||
glTexCoord2f(_texture->getMaxX(), _texture->getMaxY()); glVertex2f(w2, h2);
|
||
glTexCoord2f(_texture->getMinX(), _texture->getMaxY()); glVertex2f(-w2, h2);
|
||
glEnd();
|
||
glEndList();
|
||
|
||
return displayList;
|
||
}
|
||
|
||
void
|
||
FGTexturedLayer::draw ( )
|
||
{
|
||
if (test()) {
|
||
transform();
|
||
glCallList(getDisplayList());
|
||
}
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of FGTextLayer.
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
fntRenderer FGTextLayer::text_renderer;
|
||
|
||
FGTextLayer::FGTextLayer (int w, int h)
|
||
: FGInstrumentLayer(w, h), _pointSize(14.0), _font_name("Helvetica.txf")
|
||
{
|
||
_then.stamp();
|
||
_color[0] = _color[1] = _color[2] = 0.0;
|
||
_color[3] = 1.0;
|
||
}
|
||
|
||
FGTextLayer::~FGTextLayer ()
|
||
{
|
||
chunk_list::iterator it = _chunks.begin();
|
||
chunk_list::iterator last = _chunks.end();
|
||
for ( ; it != last; it++) {
|
||
delete *it;
|
||
}
|
||
}
|
||
|
||
void
|
||
FGTextLayer::draw ()
|
||
{
|
||
if (test()) {
|
||
float c[4];
|
||
glGetFloatv( GL_CURRENT_COLOR, c );
|
||
glColor4fv(_color);
|
||
transform();
|
||
|
||
text_renderer.setFont(ApplicationProperties::fontCache.getTexFont(_font_name.c_str()));
|
||
if (!text_renderer.getFont())
|
||
{
|
||
SG_LOG( SG_COCKPIT, SG_ALERT, "Missing font file: " << _font_name );
|
||
return;
|
||
}
|
||
|
||
text_renderer.setPointSize(_pointSize);
|
||
text_renderer.begin();
|
||
text_renderer.start3f(0, 0, 0);
|
||
|
||
_now.stamp();
|
||
long diff = (_now - _then).toUSecs();
|
||
|
||
if (diff > 100000 || diff < 0 ) {
|
||
// ( diff < 0 ) is a sanity check and indicates our time stamp
|
||
// difference math probably overflowed. We can handle a max
|
||
// difference of 35.8 minutes since the returned value is in
|
||
// usec. So if the panel is left off longer than that we can
|
||
// over flow the math with it is turned back on. This (diff <
|
||
// 0) catches that situation, get's us out of trouble, and
|
||
// back on track.
|
||
recalc_value();
|
||
_then = _now;
|
||
}
|
||
|
||
// Something is goofy. The code in this file renders only CCW
|
||
// polygons, and I have verified that the font code in plib
|
||
// renders only CCW trianbles. Yet they come out backwards.
|
||
// Something around here or in plib is either changing the winding
|
||
// order or (more likely) pushing a left-handed matrix onto the
|
||
// stack. But I can't find it; get out the chainsaw...
|
||
glFrontFace(GL_CW);
|
||
text_renderer.puts((char *)(_value.c_str()));
|
||
glFrontFace(GL_CCW);
|
||
|
||
text_renderer.end();
|
||
glColor4fv( c );
|
||
}
|
||
}
|
||
|
||
void
|
||
FGTextLayer::addChunk (FGTextLayer::Chunk * chunk)
|
||
{
|
||
_chunks.push_back(chunk);
|
||
}
|
||
|
||
void
|
||
FGTextLayer::setColor (float r, float g, float b)
|
||
{
|
||
_color[0] = r;
|
||
_color[1] = g;
|
||
_color[2] = b;
|
||
_color[3] = 1.0;
|
||
}
|
||
|
||
void
|
||
FGTextLayer::setPointSize (float size)
|
||
{
|
||
_pointSize = size;
|
||
}
|
||
|
||
void
|
||
FGTextLayer::setFontName(const string &name)
|
||
{
|
||
_font_name = name + ".txf";
|
||
}
|
||
|
||
|
||
void
|
||
FGTextLayer::setFont(fntFont * font)
|
||
{
|
||
FGTextLayer::text_renderer.setFont(font);
|
||
}
|
||
|
||
|
||
void
|
||
FGTextLayer::recalc_value () const
|
||
{
|
||
_value = "";
|
||
chunk_list::const_iterator it = _chunks.begin();
|
||
chunk_list::const_iterator last = _chunks.end();
|
||
for ( ; it != last; it++) {
|
||
_value += (*it)->getValue();
|
||
}
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of FGTextLayer::Chunk.
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
FGTextLayer::Chunk::Chunk (const string &text, const string &fmt)
|
||
: _type(FGTextLayer::TEXT), _fmt(fmt)
|
||
{
|
||
_text = text;
|
||
if (_fmt.empty())
|
||
_fmt = "%s";
|
||
}
|
||
|
||
FGTextLayer::Chunk::Chunk (ChunkType type, const SGPropertyNode * node,
|
||
const string &fmt, float mult, float offs,
|
||
bool truncation)
|
||
: _type(type), _fmt(fmt), _mult(mult), _offs(offs), _trunc(truncation)
|
||
{
|
||
if (_fmt.empty()) {
|
||
if (type == TEXT_VALUE)
|
||
_fmt = "%s";
|
||
else
|
||
_fmt = "%.2f";
|
||
}
|
||
_node = node;
|
||
}
|
||
|
||
const char *
|
||
FGTextLayer::Chunk::getValue () const
|
||
{
|
||
if (test()) {
|
||
_buf[0] = '\0';
|
||
switch (_type) {
|
||
case TEXT:
|
||
sprintf(_buf, _fmt.c_str(), _text.c_str());
|
||
return _buf;
|
||
case TEXT_VALUE:
|
||
sprintf(_buf, _fmt.c_str(), _node->getStringValue());
|
||
break;
|
||
case DOUBLE_VALUE:
|
||
double d = _offs + _node->getFloatValue() * _mult;
|
||
if (_trunc) d = (d < 0) ? -floor(-d) : floor(d);
|
||
sprintf(_buf, _fmt.c_str(), d);
|
||
break;
|
||
}
|
||
return _buf;
|
||
} else {
|
||
return "";
|
||
}
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of FGSwitchLayer.
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
FGSwitchLayer::FGSwitchLayer ()
|
||
: FGGroupLayer()
|
||
{
|
||
}
|
||
|
||
void
|
||
FGSwitchLayer::draw ()
|
||
{
|
||
if (test()) {
|
||
transform();
|
||
int nLayers = _layers.size();
|
||
for (int i = 0; i < nLayers; i++) {
|
||
if (_layers[i]->test()) {
|
||
_layers[i]->draw();
|
||
return;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
// end of panel.cxx
|