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196 lines
4.4 KiB
196 lines
4.4 KiB
#include "glcontrolwidget.h"
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#include <ntqcursor.h>
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#include <ntqtimer.h>
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#include <math.h>
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GLControlWidget::GLControlWidget( TQWidget *parent, const char *name, TQGLWidget *share, WFlags f )
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: TQGLWidget( parent, name, share, f ),
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xRot(0),yRot(0),zRot(0),xTrans(0),yTrans(0),zTrans(-10.0),scale(5.0), animation(TRUE), wasAnimated(FALSE), delay( 50 )
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{
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setCursor( pointingHandCursor );
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timer = new TQTimer( this );
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connect( timer, SIGNAL(timeout()), SLOT(animate()) );
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timer->start( delay );
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}
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void GLControlWidget::transform()
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{
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glTranslatef( xTrans, yTrans, zTrans );
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glScalef( scale, scale, scale );
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glRotatef( xRot, 1.0, 0.0, 0.0 );
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glRotatef( yRot, 0.0, 1.0, 0.0 );
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glRotatef( zRot, 0.0, 0.0, 1.0 );
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}
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void GLControlWidget::drawText()
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{
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glPushAttrib( GL_LIGHTING_BIT | GL_TEXTURE_BIT );
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glDisable( GL_LIGHTING );
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glDisable( GL_TEXTURE_2D );
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qglColor( white );
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TQString str( "Rendering text in OpenGL is easy with TQt" );
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TQFontMetrics fm( font() );
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renderText( (width() - fm.width( str )) / 2, 15, str );
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TQFont f( "courier", 8 );
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TQFontMetrics fmc( f );
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qglColor( TQColor("skyblue") );
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int x, y, z;
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x = (xRot >= 0) ? (int) xRot % 360 : 359 - (TQABS((int) xRot) % 360);
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y = (yRot >= 0) ? (int) yRot % 360 : 359 - (TQABS((int) yRot) % 360);
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z = (zRot >= 0) ? (int) zRot % 360 : 359 - (TQABS((int) zRot) % 360);
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str.sprintf( "Rot X: %03d - Rot Y: %03d - Rot Z: %03d", x, y, z );
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renderText( (width() - fmc.width( str )) / 2, height() - 15, str, f );
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glPopAttrib();
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}
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/*!
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Set the rotation angle of the object to \e degrees around the X axis.
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*/
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void GLControlWidget::setXRotation( double degrees )
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{
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xRot = (GLfloat)fmod(degrees, 360.0);
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updateGL();
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}
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/*!
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Set the rotation angle of the object to \e degrees around the Y axis.
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*/
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void GLControlWidget::setYRotation( double degrees )
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{
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yRot = (GLfloat)fmod(degrees, 360.0);
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updateGL();
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}
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/*!
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Set the rotation angle of the object to \e degrees around the Z axis.
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*/
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void GLControlWidget::setZRotation( double degrees )
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{
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zRot = (GLfloat)fmod(degrees, 360.0);
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updateGL();
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}
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void GLControlWidget::setScale( double s )
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{
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scale = s;
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updateGL();
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}
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void GLControlWidget::setXTrans( double x )
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{
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xTrans = x;
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updateGL();
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}
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void GLControlWidget::setYTrans( double y )
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{
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yTrans = y;
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updateGL();
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}
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void GLControlWidget::setZTrans( double z )
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{
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zTrans = z;
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updateGL();
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}
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void GLControlWidget::setRotationImpulse( double x, double y, double z )
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{
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setXRotation( xRot + 180*x );
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setYRotation( yRot + 180*y );
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setZRotation( zRot - 180*z );
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}
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void GLControlWidget::setTranslationImpulse( double x, double y, double z )
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{
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setXTrans( xTrans + 2*x );
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setYTrans( yTrans - 2*y );
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setZTrans( zTrans + 2*z );
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}
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void GLControlWidget::mousePressEvent( TQMouseEvent *e )
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{
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e->accept();
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oldPos = e->pos();
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}
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void GLControlWidget::mouseReleaseEvent( TQMouseEvent *e )
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{
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e->accept();
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oldPos = e->pos();
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}
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void GLControlWidget::mouseMoveEvent( TQMouseEvent *e )
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{
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e->accept();
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double dx = e->x() - oldPos.x();
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double dy = e->y() - oldPos.y();
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oldPos = e->pos();
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double rx = dx / width();
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double ry = dy / height();
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if ( e->state() == LeftButton )
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setRotationImpulse( ry, rx, 0 );
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else if ( e->state() == RightButton )
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setRotationImpulse( ry, 0, rx );
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else if ( e->state() == MidButton )
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setTranslationImpulse( rx, ry, 0 );
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else if ( e->state() == ( LeftButton | RightButton ) )
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setTranslationImpulse( rx, 0, ry );
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}
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void GLControlWidget::wheelEvent( TQWheelEvent *e )
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{
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e->accept();
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if ( scale <= ( (double)e->delta() / 1000 ) )
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return;
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setScale( scale - ( (double)e->delta() / 1000 ));
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}
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void GLControlWidget::mouseDoubleClickEvent( TQMouseEvent * )
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{
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if ( delay <= 0 )
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return;
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animation = !animation;
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if ( animation )
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timer->start( delay );
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else
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timer->stop();
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}
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void GLControlWidget::showEvent( TQShowEvent *e )
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{
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if ( wasAnimated && !timer->isActive() )
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timer->start( delay );
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TQGLWidget::showEvent( e );
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}
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void GLControlWidget::hideEvent( TQHideEvent *e )
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{
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wasAnimated = timer->isActive();
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timer->stop();
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TQGLWidget::hideEvent( e );
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}
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void GLControlWidget::animate()
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{
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}
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void GLControlWidget::setAnimationDelay( int ms )
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{
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timer->stop();
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delay = ms;
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if ( animation ) {
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wasAnimated = TRUE;
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timer->start( delay );
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}
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}
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