Widget without window decoration in windows

[jiveaxe]

Hi,
inspired by k3b osd I have added to my application an osd widget; now it works good in linux but in windows the widget decoration (borders) is visible. Here is the code I have used:

GmckJobProgressOSD::GmckJobProgressOSD( QWidget* parent )
	: QWidget( parent, Qt::Window | Qt::WindowStaysOnTopHint | Qt::X11BypassWindowManagerHint ),
		m_dirty(true),
		m_progress(0),
		m_dragging(false),
		m_screen(0),
		m_position(s_outerMargin, s_outerMargin)
{
	QPixmap pix(10,10);
	m_osdBuffer = pix;
	setFocusPolicy( Qt::NoFocus );
 
	// dummy size
	resize( 100, 20 );
}
 
 
void GmckJobProgressOSD::renderOSD()
{
	// -----------------------------------------
	// |             download                  |
	// |    GMCK    ========== 40%             |
	// |                                       |
	// -----------------------------------------
 
	// calculate needed size 
	if( true ) {
		QPixmap icon(":/icons/icon16x16.png");
		int margin = 10;
		int textWidth = fontMetrics().width( m_text );
 
		// do not change the size every time the text changes, just in case we are too small
		QSize newSize( qMax( qMax( 2*margin + icon.width() + margin + textWidth, 100 ), width() ),
			 qMax( 2*margin + icon.height(), 2*margin + fontMetrics().height()*2 ) );
 
		m_osdBuffer = m_osdBuffer.scaled( newSize );
		QPainter p( &m_osdBuffer );
 
		p.setPen( Qt::white );
 
		// draw the background and the frame
		QRect thisRect( -1, -1, newSize.width()+1, newSize.height()+1 );
		p.fillRect( thisRect, QColor(233,116,37));
		p.drawRect( thisRect );
 
		// draw the gmck icon
		p.drawPixmap( margin, (newSize.height()-icon.height())/2, icon );
 
		// draw the text
		QSize textSize = fontMetrics().size( 0, m_text );
		int textX = 2*margin + icon.width();
		int textY = margin + fontMetrics().ascent();
		p.drawText( textX, textY, m_text );
 
		// draw the progress
		textY += fontMetrics().descent() + 4;
		QRect progressRect( textX, textY, newSize.width()-textX-margin, newSize.height()-textY-margin );
		p.drawRect( progressRect );
		progressRect.setWidth( m_progress > 0 ? m_progress*progressRect.width()/100 : 0 );
		p.fillRect( progressRect, Qt::white );
 
		// reposition the osd
		reposition( newSize );
		resize(newSize);
 
		m_dirty = false;
 
		update();
	}
}
 
 
void GmckJobProgressOSD::paintEvent( QPaintEvent* )
{
	QPainter *p = new QPainter(this);
	p->drawPixmap(0,0,m_osdBuffer);
}

GmckJobProgressOSD::GmckJobProgressOSD( QWidget* parent )
	: QWidget( parent, Qt::Window | Qt::WindowStaysOnTopHint | Qt::X11BypassWindowManagerHint ),
		m_dirty(true),
		m_progress(0),
		m_dragging(false),
		m_screen(0),
		m_position(s_outerMargin, s_outerMargin)
{
	QPixmap pix(10,10);
	m_osdBuffer = pix;
	setFocusPolicy( Qt::NoFocus );

	// dummy size
	resize( 100, 20 );
}


void GmckJobProgressOSD::renderOSD()
{
	// -----------------------------------------
	// |             download                  |
	// |    GMCK    ========== 40%             |
	// |                                       |
	// -----------------------------------------

	// calculate needed size 
	if( true ) {
		QPixmap icon(":/icons/icon16x16.png");
		int margin = 10;
		int textWidth = fontMetrics().width( m_text );

		// do not change the size every time the text changes, just in case we are too small
		QSize newSize( qMax( qMax( 2*margin + icon.width() + margin + textWidth, 100 ), width() ),
			 qMax( 2*margin + icon.height(), 2*margin + fontMetrics().height()*2 ) );
			 
		m_osdBuffer = m_osdBuffer.scaled( newSize );
		QPainter p( &m_osdBuffer );
		
		p.setPen( Qt::white );
		
		// draw the background and the frame
		QRect thisRect( -1, -1, newSize.width()+1, newSize.height()+1 );
		p.fillRect( thisRect, QColor(233,116,37));
		p.drawRect( thisRect );
		
		// draw the gmck icon
		p.drawPixmap( margin, (newSize.height()-icon.height())/2, icon );
		
		// draw the text
		QSize textSize = fontMetrics().size( 0, m_text );
		int textX = 2*margin + icon.width();
		int textY = margin + fontMetrics().ascent();
		p.drawText( textX, textY, m_text );

		// draw the progress
		textY += fontMetrics().descent() + 4;
		QRect progressRect( textX, textY, newSize.width()-textX-margin, newSize.height()-textY-margin );
		p.drawRect( progressRect );
		progressRect.setWidth( m_progress > 0 ? m_progress*progressRect.width()/100 : 0 );
		p.fillRect( progressRect, Qt::white );

		// reposition the osd
		reposition( newSize );
		resize(newSize);

		m_dirty = false;

		update();
	}
}


void GmckJobProgressOSD::paintEvent( QPaintEvent* )
{
	QPainter *p = new QPainter(this);
	p->drawPixmap(0,0,m_osdBuffer);
}

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Can I obtain the same aspect in windows too? How?

Thanks

[mcosta]

Set the FramelessWindowHint flag

GmckJobProgressOSD::GmckJobProgressOSD( QWidget* parent )
    : QWidget( parent, Qt::Window 
        | Qt::WindowStaysOnTopHint 
        | Qt::X11BypassWindowManagerHint 
        | Qt::FramelessWindowHint ),
....

GmckJobProgressOSD::GmckJobProgressOSD( QWidget* parent )
    : QWidget( parent, Qt::Window 
        | Qt::WindowStaysOnTopHint 
        | Qt::X11BypassWindowManagerHint 
        | Qt::FramelessWindowHint ),
....

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[jiveaxe]

Thank you, mcosta,
now it works good.