/**************************************************************************** ** ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). ** All rights reserved. ** Contact: Nokia Corporation (qt-info@nokia.com) ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** You may use this file under the terms of the BSD license as follows: ** ** "Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions are ** met: ** * Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** * Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in ** the documentation and/or other materials provided with the ** distribution. ** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor ** the names of its contributors may be used to endorse or promote ** products derived from this software without specific prior written ** permission. ** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ** $QT_END_LICENSE$ ** ****************************************************************************/ /* * KAsteroids - Copyright (c) Martin R. Jones 1997 * * Part of the KDE project */ #include //Added by qt3to4: #include #include #include "ledmeter.h" KALedMeter::KALedMeter( QWidget *parent ) : Q3Frame( parent ) { mCRanges.setAutoDelete( TRUE ); mRange = 100; mCount = 20; mCurrentCount = 0; mValue = 0; setMinimumWidth( mCount * 2 + frameWidth() ); } void KALedMeter::setRange( int r ) { mRange = r; if ( mRange < 1 ) mRange = 1; setValue( mValue ); update(); } void KALedMeter::setCount( int c ) { mCount = c; if ( mCount < 1 ) mCount = 1; setMinimumWidth( mCount * 2 + frameWidth() ); calcColorRanges(); setValue( mValue ); update(); } void KALedMeter::setValue( int v ) { mValue = v; if ( mValue > mRange ) mValue = mRange; else if ( mValue < 0 ) mValue = 0; int c = ( mValue + mRange / mCount - 1 ) * mCount / mRange; if ( c != mCurrentCount ) { mCurrentCount = c; update(); } } void KALedMeter::addColorRange( int pc, const QColor &c ) { ColorRange *cr = new ColorRange; cr->mPc = pc; cr->mColor = c; mCRanges.append( cr ); calcColorRanges(); } void KALedMeter::resizeEvent( QResizeEvent *e ) { Q3Frame::resizeEvent( e ); int w = ( width() - frameWidth() - 2 ) / mCount * mCount; w += frameWidth() + 2; setFrameRect( QRect( 0, 0, w, height() ) ); } void KALedMeter::drawContents( QPainter *p ) { QRect b = contentsRect(); unsigned cidx = 0; int ncol = mCount; QColor col = colorGroup().foreground(); if ( !mCRanges.isEmpty() ) { col = mCRanges.at( cidx )->mColor; ncol = mCRanges.at( cidx )->mValue; } p->setBrush( col ); p->setPen( col ); int lw = b.width() / mCount; int lx = b.left() + 1; for ( int i = 0; i < mCurrentCount; i++, lx += lw ) { if ( i > ncol ) { if ( ++cidx < mCRanges.count() ) { col = mCRanges.at( cidx )->mColor; ncol = mCRanges.at( cidx )->mValue; p->setBrush( col ); p->setPen( col ); } } p->drawRect( lx, b.top() + 1, lw - 1, b.height() - 2 ); } } void KALedMeter::calcColorRanges() { int prev = 0; ColorRange *cr; for ( cr = mCRanges.first(); cr; cr = mCRanges.next() ) { cr->mValue = prev + cr->mPc * mCount / 100; prev = cr->mValue; } }