From 98a1e3f36567639344f12932b629e526a8783aa8 Mon Sep 17 00:00:00 2001
From: sandman <sandman>
Date: Sat, 13 Apr 2002 00:47:20 +0000
Subject: CVS import of QPdf

---
(limited to 'noncore/unsupported/qpdf/qbusybar.cpp')

diff --git a/noncore/unsupported/qpdf/qbusybar.cpp b/noncore/unsupported/qpdf/qbusybar.cpp
new file mode 100644
index 0000000..f5c62fa
--- a/dev/null
+++ b/noncore/unsupported/qpdf/qbusybar.cpp
@@ -0,0 +1,132 @@
+#include <qapplication.h>
+#include <qtimer.h>
+#include <qpainter.h>
+
+#include "qbusybar.h"
+
+
+
+QBusyBar::QBusyBar ( QWidget *parent, const char *name, int flags ) : QWidget ( parent, name, flags | WRepaintNoErase )
+{
+	m_busy = 0;
+
+	m_div = 0;
+	m_pos = 0;
+	m_fade = 0;
+	m_fadecols = 0;
+	m_speed = 500;
+	
+	m_timer = new QTimer ( this );	
+	connect ( m_timer, SIGNAL( timeout ( )), this, SLOT( slotTimeout ( )));	
+
+	setParameters ( 12, 8, 200 );
+}
+
+void QBusyBar::setParameters ( int d, int s, int v )	
+{	
+	bool running = m_timer-> isActive ( );
+	
+	if ( running )
+		m_timer-> stop ( );
+
+	m_div = d;
+	m_speed = v;
+
+	delete [] m_fadecols;
+	m_fade = s;
+	m_fadecols = new QColor [m_fade];
+
+	int rt, gt, bt;
+	int rf, gf, bf;
+
+	colorGroup ( ). color ( QColorGroup::Highlight ). rgb ( &rf, &gf, &bf );
+	colorGroup ( ). color ( QColorGroup::Background ). rgb ( &rt, &gt, &bt );
+	
+	for ( int i = 0; i < s; i++ ) 
+		m_fadecols [i]. setRgb ( rf + ( rt - rf ) * i / s, gf + ( gt - gf ) * i / s, bf + ( bt - bf ) * i / s );
+		
+	if ( running ) {
+		m_pos = 0;
+		m_timer-> start ( m_speed );
+	}
+}
+
+QBusyBar::~QBusyBar ( )
+{
+}
+
+bool QBusyBar::isBusy ( ) const
+{
+	return m_busy;
+}
+
+void QBusyBar::beginBusy ( )
+{
+	setBusy ( true );
+}
+
+void QBusyBar::endBusy ( )
+{
+	setBusy ( false );
+}
+
+void QBusyBar::setBusy ( bool b )
+{
+	int busy = m_busy + ( b ? 1 : -1 );
+	
+	if ( busy < 0 )
+		busy = 0;
+	
+	if (( m_busy == 0 ) && ( busy > 0 )) { // Changed state	to on
+		m_pos = 0;
+		m_timer-> start ( m_speed );
+		update ( );		
+	}
+	else if (( m_busy > 0 ) && ( busy == 0 )) { // Changed state to off
+		m_timer-> stop ( );
+		update ( );	
+	}
+	
+	m_busy = busy;
+}
+
+void QBusyBar::slotTimeout ( )
+{
+	m_pos++;
+	m_pos %= ( 2 * ( m_fade + m_div ));
+
+	update ( );
+}
+
+void QBusyBar::paintEvent ( QPaintEvent *e )
+{
+	QPainter p ( this );
+
+	QRect clip = e-> rect ( );
+
+	int x  = 0;
+	int dx = width ( ) / m_div;
+	int y  = clip. top ( ); 
+	int dy = clip. height ( );
+
+	if ( m_busy ) {
+		int dir = ( m_pos < ( m_fade + m_div )) ? 1 : -1;
+		int pos = ( dir > 0 ) ? m_pos : ( 2 * ( m_div + m_fade )) - m_pos - m_fade - 1;
+
+		for ( int i = 0; i < m_div; i++ ) {
+			int ind = ( pos - i ) * dir;
+			if (( ind < 0 ) || ( ind >= m_fade ))
+				ind = m_fade - 1;
+			
+			if ((( x + dx ) > clip. left ( )) || ( x < clip. right ( )))
+				p. fillRect ( x, y, ( i < ( m_div - 1 )) ? dx : width ( ) - x, dy, m_fadecols [ind] );	
+			x += dx;
+		}
+	}
+	else {
+		p. fillRect ( e-> rect ( ), m_fadecols [m_fade - 1] );
+	}		
+}
+
+
+
--
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