pfd.cpp

/*
		pfd.cpp - A Primary Flight Display OpenGL Avionics Widget
		Copyright (C)  2003 Tom Dollmeyer (tom@dollmeyer.com)

		This program is free software; you can redistribute it and/or modify
		it under the terms of the GNU General Public License as published by
		the Free Software Foundation; either version 2 of the License, or
		(at your option) any later version.

		This program is distributed in the hope that it will be useful,
		but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/

/*
 ToDo List
		- add dive/climb arrows
		- add standard rate turn indicators
		- add hnav & vnav indicators
		- add crab orientation
		- add flight director bars
		- add 3d terrain mapping
		- convert to designer plugin
*/

#include <math.h>

#include "pfd.h"
#include <qstring.h>
#include <qfont.h>
#include <qgl.h>

#include <qlayout.h>
#include <qslider.h>
#include <qlabel.h>
#include <qpushbutton.h>
//Added by qt3to4:
#include <Q3GridLayout>

#if defined(Q_CC_MSVC)
#pragma warning(disable:4305)											// init: truncation from const double to float
#endif

/*!
	Create a GLPFD widget
*/

GLPFD::GLPFD( QWidget* parent, const char* name, const QGLWidget* shareWidget )
: QGLWidget( parent, name, shareWidget )
{
	pitchTranslation = rollRotation = 0.0;					// default object translation and rotation

	IASTranslation = 0.0;														// default IAS tape translation
	IASValue = 0;																		// The default to show if no IAS calls come in

	MSLTranslation = 0.0;														// default MSL tape translation
	MSLValue = 0;																		// The default to show if no MSL calls come in

	VSIValue = 0;																		// The default vertical speed

	// These should come from a cal file

	Vs0 = 59;
	Vs1 = 70;
	Vx = 86;
	Vy = 103;
	Vfe = 122;
	Va = 126;
	Vno = 174;
	Vne = 226;

  IASMaxDisp = 200; // 400;
  //MSLMinDisp = -10; //-fl 10  = -1000ft //-5000;
  //MSLMaxDisp = 200; // fl 200 = 20000ft // 35000;
  MSLMinDisp = -1000;
  MSLMaxDisp =  20000;

  displayTerrain = true;
  displayTape = true;
}


/*!
	Create a GLPFD widget
*/

GLPFD::GLPFD( const QGLFormat& format, QWidget* parent, const char* name,
const QGLWidget* shareWidget )
: QGLWidget( format, parent, name, shareWidget )
{
	pitchTranslation = rollRotation = 0.0;					// default object translation and rotation

	IASTranslation = 0.0;														// default object translation
	IASValue = 0;																		// The default to show if on IAS calls come in

	MSLTranslation = 0.0;														// default MSL tape translation
	MSLValue = 0;																		// The default to show if no MSL calls come in

	VSIValue = 0;																		// The default vertical speed

	// These should come from a cal file
	Vs0 = 59;
	Vs1 = 70;
	Vx = 86;
	Vy = 103;
	Vfe = 122;
	Va = 126;
	Vno = 174;
	Vne = 226;
	IASMaxDisp = 400;
	MSLMinDisp = -5000;
	MSLMaxDisp = 35000;

  displayTerrain = true;
  displayTape = true;
}


/*!
	Release allocated resources
*/

GLPFD::~GLPFD()
{
	makeCurrent();
}


/*!
	Set up the OpenGL rendering state, and define display list
*/

void GLPFD::initializeGL()
{
	qglClearColor( QColor( eraseColor()) );					// Let OpenGL clear to background color
	glEnable( GL_DEPTH_TEST );
}


/*!
	Set up the OpenGL view port, matrix mode, etc.
*/

void GLPFD::resizeGL( int w, int h )
{
	// Capture the window scaling for use by the rendering functions
	pixW = w;
	pixH = h;
	pixW2 = w/2;
	pixH2 = h/2;

	// Set the window size specific scales, positions and sizes (nothing dynamic yet...)
  pitchInView = 25.0;											// degrees to display from horizon to top of viewport
  IASInView   = 25.0;               							// IAS units to display from center to top of viewport
  MSLInView   = 250.0;										// IAS units to display from center to top of viewport

	glViewport( 0, 0, (GLint)w, (GLint)h );
	glMatrixMode( GL_PROJECTION );
	glLoadIdentity();
  glOrtho(-pixW2, pixW2, -pixH2, pixH2, 0.0, 10.0);
}


void GLPFD::paintGL()
{

	glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );

	glMatrixMode( GL_MODELVIEW );
	glLoadIdentity();
	glTranslatef( 0.0, 0.0, 0.0 );
  glScalef( 1.0, 1.0, 1.0 );    // drawing normal ie not mirrored
  //glScalef( -1.0, 1.0, 1.0 ); // drawing mirrored but not the text ??

	zfloat = -1.0;																	// Set the z position for ortho drawing
  renderFixedASIMarkers();												// Draw the ASI fixed markings
  renderFixedALTMarkers();												// Draw the ALT fixed markings
  renderVSIValue();																// Draw the VSI digital display

  renderHDGValue();

  renderGForceValue();

  //b2 start
  renderFixedDIMarkers();
  renderSlipBall();

  if (!calibrated) {
    renderCalibrate();
    //return;
  }
  //b2 end


  glTranslatef( 3.7 * pixH2, 0.0, 0.0);						// Slide over to draw the VSI gauge
  if (displayTape) renderFixedVSIMarkers();

  // Slide ASI to current value
	glTranslatef( - 3.7 * pixH2, -IASTranslation, 0.0);
  if (displayTape) renderIASMarkers();								// Draw the ASI tape

  // Slide ALT to current value
  glTranslatef(0.0, IASTranslation-MSLTranslation, 0.0);
  if (displayTape) renderMSLMarkers();								// Draw the ALT tape


	zfloat = -2.0;																	// Put the horizon behind the tapes
	glTranslatef( 0.0, MSLTranslation, 0.0);				// Slide back,
	renderFixedHorizonMarkers();										// draw the horizon fixed markings
	glRotatef( rollRotation, 0.0, 0.0, 1.0 );				// then Roll,
	renderRollMarkers();														// and draw the markers that roll but do not  pitch
	glTranslatef( 0.0, pitchTranslation, 0.0);			// Pitch while rolled,
	renderPitchMarkers();														// draw the pitch markers,

  zfloat = -5.0;																	// Put the terrain behind everything else
  if (displayTerrain) renderTerrain();								// draw the terrain
}


/*!
	Launch a test dialog for the PFD
*/

void GLPFD::testPFD()
{
	int r;
	//TestPFD testpfd( this,0,TRUE,Qt::WStyle_Customize|Qt::WStyle_DialogBorder|Qt::Qt::WStyle_StaysOnTop);
	TestPFD testpfd( this,0,TRUE);									//,Qt::WStyle_Customize|Qt::WStyle_DialogBorder|Qt::WStyle_StaysOnTop);
	testpfd.setCaption("PFD Input Overrides");
	testpfd.resize( 333, 222 );
	r = testpfd.exec();
}


TestPFD::TestPFD( QWidget* parent, const char* name,
bool modal, Qt::WFlags f )
: QDialog( parent, name, modal, f )
{
	setCaption( "PFD -- Manual Control" );

	// Define the Controls
	QSlider* pitchSlider = new QSlider ( -360, 360, 60, 0, Qt::Horizontal, this, "pitchSlider" );
	pitchSlider->setTickmarks( QSlider::TicksAbove );
	QLabel* pitchSliderLabel = new QLabel( "Pitch", this, "pitchSliderLabel" );
	connect( pitchSlider, SIGNAL(valueChanged(int)), parent, SLOT(setPitch(int)) );

	QSlider* rollSlider = new QSlider ( -360, 360, 60, 0, Qt::Horizontal, this, "rollSlider" );
	QLabel* rollSliderLabel = new QLabel( "Roll", this, "rollSliderLabel" );
	connect( rollSlider, SIGNAL(valueChanged(int)), parent, SLOT(setRoll(int)) );

	QSlider* IASSlider = new QSlider ( 0, 360, 6, 0, Qt::Horizontal, this, "IASSlider" );
	QLabel* IASSliderLabel = new QLabel( "IAS", this, "IASSliderLabel" );
	connect( IASSlider, SIGNAL(valueChanged(int)), parent, SLOT(setIAS(int)) );

	QSlider* MSLSlider = new QSlider ( -3000, 12000, 60, 0, Qt::Horizontal, this, "MSLSlider" );
	QLabel* MSLSliderLabel = new QLabel( "MSL", this, "MSLSliderLabel" );
	connect( MSLSlider, SIGNAL(valueChanged(int)), parent, SLOT(setMSL(int)) );

	QSlider* VSISlider = new QSlider ( -5000, 5000, 50, 0, Qt::Horizontal, this, "VSISlider" );
	QLabel* VSISliderLabel = new QLabel( "VSI", this, "VSISliderLabel" );
	connect( VSISlider, SIGNAL(valueChanged(int)), parent, SLOT(setVSI(int)) );

	QPushButton* cancelPushButton = new QPushButton( "&Close Dialog", this );
	connect( cancelPushButton, SIGNAL( clicked() ), this, SLOT( reject() ) );

	// Put manual PFD controls in the window
	Q3GridLayout* PFDControlBox = new Q3GridLayout( this, 6, 2, 5, 5, "gridLayout");
	PFDControlBox->addWidget( pitchSliderLabel, 0, 0 );
	PFDControlBox->addWidget( pitchSlider, 0, 1 );
	PFDControlBox->addWidget( rollSliderLabel, 1, 0 );
	PFDControlBox->addWidget( rollSlider, 1, 1 );
	PFDControlBox->addWidget( IASSliderLabel, 2, 0 );
	PFDControlBox->addWidget( IASSlider, 2, 1 );
	PFDControlBox->addWidget( MSLSliderLabel, 3, 0 );
	PFDControlBox->addWidget( MSLSlider, 3, 1 );
	PFDControlBox->addWidget( VSISliderLabel, 4, 0 );
	PFDControlBox->addWidget( VSISlider, 4, 1 );
	PFDControlBox->addWidget( cancelPushButton, 5, 1 );

}