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137 lines
2.7 KiB
137 lines
2.7 KiB
/*
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* kgradprogress.cpp
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*
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* Copyright (C) 2003-2005 Christophe Thommeret <hftom@free.fr>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <tqpainter.h>
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#include <tqlabel.h>
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#include "kgradprogress.h"
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KGradProgress::KGradProgress( TQWidget *parent ) : TQLabel( parent )
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{
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barPix = 0;
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colorUp = TQColor( 0, 255, 0 );
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colorDown = TQColor( 255, 0, 0 );
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current = 0;
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setFrameStyle( TQFrame::Box | TQFrame::Plain );
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setLineWidth(1);
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setMidLineWidth(0);
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setSizePolicy( TQSizePolicy::MinimumExpanding, TQSizePolicy::Preferred );
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}
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void KGradProgress::setProgress( int progress )
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{
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current = progress;
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draw();
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repaint(false);
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}
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void KGradProgress::draw()
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{
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int i, j;
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int a, b;
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int off = frameWidth();
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int h = height() - ( 2*off );
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int w = width() - ( 2*off );
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int per;
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TQString s;
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TQFont f;
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s = s.setNum( current )+"%";
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per = current*w/100;
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if ( barPix ) delete barPix;
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barPix = new TQPixmap( w, h, -1, TQPixmap::BestOptim );
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TQPainter p( barPix );
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p.fillRect( 0, 0, w, h, paletteBackgroundColor() );
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for ( j=0; j<per; j++ ) {
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if ( j<(w/2) ) {
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a = 255;
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b = 2*j*255/w;
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}
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else {
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a = 255-(2*(j-w/2)*255/w);
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b = 255;
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}
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p.setPen( TQColor( a, b, 0 ) );
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for ( i=0; i<h; i++ ) p.drawPoint( j+off, i+off );
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}
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f = font();
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f.setPointSize( int(h/1.2) );
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p.setFont( f );
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p.setPen( TQColor( 0, 0, 0 ) );
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p.drawText( w/2, (h/2)+(f.pointSize()/2), s );
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p.end();
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}
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void KGradProgress::resizeEvent( TQResizeEvent *e )
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{
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TQSize s=e->size();
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draw();
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}
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void KGradProgress::paintEvent(TQPaintEvent *event)
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{
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int x, y, w, h;
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x = y = frameWidth();
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w = width() - (2*x);
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h = height() - (2*y);
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TQLabel::paintEvent( event );
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bitBlt( this, x, y, barPix, 0, 0, w, h, CopyROP );
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}
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TQSize KGradProgress::sizeHint()
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{
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TQLabel lab( "This is a progress bar.", 0 );
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return TQSize( lab.width(), int(font().pointSize()*1.2) );
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}
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TQSizePolicy KGradProgress::sizePolicy()
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{
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return TQSizePolicy( TQSizePolicy::MinimumExpanding, TQSizePolicy::Preferred );
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}
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KGradProgress::~KGradProgress()
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{
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delete barPix;
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}
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#include "kgradprogress.moc"
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