benoitrigolleau@132: #include <vector>
benoitrigolleau@132: #include <cstdlib>
benoitrigolleau@132: #include <ctime>
benoitrigolleau@132: #include "SDLWidget.h"
ivand_qmul@150: float zoomFivan=1;
ivand_qmul@150: 
ivand_qmul@150: 
benoitrigolleau@132: 
benoitrigolleau@132: SDLWidget::SDLWidget()
benoitrigolleau@145: 	:windowInitialized(false), screen(0),m_width(0), m_height(0)
ivand_qmul@150: 	{
ivand_qmul@150: 		setAttribute(Qt::WA_PaintOnScreen);
benoitrigolleau@132: 		setAttribute(Qt::WA_NoSystemBackground);
benoitrigolleau@152: 		m_zoomFactor = 1;
benoitrigolleau@145: 		connect(this,SIGNAL(initSizeChanged()),this,SLOT(updateMinSize()));
benoitrigolleau@139: 
benoitrigolleau@132: 	}
benoitrigolleau@132: 
benoitrigolleau@132: SDLWidget::~SDLWidget()
benoitrigolleau@132: 	{
benoitrigolleau@132: 		SDL_Quit();
benoitrigolleau@132: 	}
benoitrigolleau@132: 
ivand_qmul@150: void SDLWidget::setZoomFactor( float f )
ivand_qmul@150: {
ivand_qmul@150: 	int w, h;
ivand_qmul@150: 	
benoitrigolleau@151: 	if( f == m_zoomFactor )
ivand_qmul@150: 		return;
ivand_qmul@150: 
benoitrigolleau@151: 	m_zoomFactor = f;
ivand_qmul@150: 
benoitrigolleau@152: 	w = m_width*m_zoomFactor;
benoitrigolleau@152: 	h = m_height*m_zoomFactor;
ivand_qmul@150: 	setMinimumSize( w, h );
ivand_qmul@150: 	emit(sizeChanged(w,h));
ivand_qmul@150: 	emit(zoomfactorChanged(f));
ivand_qmul@150: 	
ivand_qmul@150: 	/*QWidget *p = dynamic_cast<QWidget*>( parent() );
ivand_qmul@150: 	if( p ){
ivand_qmul@150: 		resize( p->width(), p->height() );
ivand_qmul@150: 	}*/
benoitrigolleau@139: }
benoitrigolleau@139: 
ivand_qmul@150: void SDLWidget::wheelEvent( QWheelEvent *event )
ivand_qmul@150: {
ivand_qmul@150: 	float f;
ivand_qmul@150: 
benoitrigolleau@151: 	f = m_zoomFactor + 0.001*event->delta();
benoitrigolleau@151: 
ivand_qmul@150: 	if( f < 32.0/m_width ){
ivand_qmul@150: 		f = 32.0/m_height;
ivand_qmul@150: 	}
benoitrigolleau@151: 	if((int)(m_width*f)%4){
benoitrigolleau@151: 		f = (m_width*f - (int)(m_width*f)%4)/m_width;
benoitrigolleau@151: 	}
ivand_qmul@150: zoomFivan=f;
ivand_qmul@150: 	setZoomFactor( f );
benoitrigolleau@139: }
benoitrigolleau@139: 
benoitrigolleau@145: void SDLWidget::setInitSize(int w, int h){
benoitrigolleau@145: 	if(m_width<=0 && m_height<=0){
benoitrigolleau@145: 		m_width = w;
benoitrigolleau@145: 		m_height =h;
benoitrigolleau@145: 		emit(initSizeChanged());
benoitrigolleau@145: 	}
benoitrigolleau@145: }
benoitrigolleau@145: 
benoitrigolleau@145: void SDLWidget::updateMinSize()
benoitrigolleau@145: {
benoitrigolleau@151: 	setMinimumSize( m_width*m_zoomFactor,m_height*m_zoomFactor );
benoitrigolleau@145: }
benoitrigolleau@145: 
benoitrigolleau@145: 
benoitrigolleau@139: 
benoitrigolleau@132: void SDLWidget::showEvent(QShowEvent *e)
ivand_qmul@150: 	{
benoitrigolleau@132: 		(void)e;
ivand_qmul@138: 		
benoitrigolleau@132: 		if(!windowInitialized)
benoitrigolleau@132: 		{
benoitrigolleau@132: 			// it's here the link between SDL and QT
ivand_qmul@150: 			char windowid[64];
benoitrigolleau@132: #ifdef Q_WS_WIN
ivand_qmul@150: 			sprintf(windowid, "SDL_WINDOWID=0x%lx", reinterpret_cast<qlonglong>(winId()));
ivand_qmul@150: #elif defined Q_WS_X11
ivand_qmul@150: 			sprintf(windowid, "SDL_WINDOWID=0x%lx", winId());
ivand_qmul@150: #else
ivand_qmul@150: 			qFatal("uncorrect window ID");
benoitrigolleau@132: #endif
benoitrigolleau@132: 			SDL_putenv(windowid);
benoitrigolleau@132: 
benoitrigolleau@132: 			//SDL_Init(SDL_INIT_VIDEO);
benoitrigolleau@132: 			//screen = SDL_SetVideoMode(width(), height(), 32, SDL_SWSURFACE);
benoitrigolleau@132: 			windowInitialized = true;
benoitrigolleau@132: 		}
benoitrigolleau@139: 	}
benoitrigolleau@139: