bar.cpp

一个基于QT的电网监控程序

#include "bar.h" 

#include <qvariant.h>
#include <qtooltip.h>
#include <qwhatsthis.h>
#include <qpainter.h>
#include <qframe.h>

#include <stdlib.h>
#include <stdio.h>

Bar::Bar(QWidget *parent,const char *name)
	:QFrame(parent,name)
{
	init();
	if ( !name )
		setName( "bar" );
    	resize( 500, 200 ); 
	
	TextLabel2 = new QLabel( this, "TextLabel2" );
    	TextLabel2->setGeometry( QRect( 35, BASELINE+3, 16, 16 ) ); 
    	TextLabel2->setText( tr( "1" ) );

    	TextLabel3 = new QLabel( this, "TextLabel3" );
    	TextLabel3->setGeometry( QRect( 92, BASELINE+3, 16, 16 ) ); 
    	TextLabel3->setText( tr( "5" ) );

    	TextLabel4 = new QLabel( this, "TextLabel4" );
    	TextLabel4->setGeometry( QRect( 147, BASELINE+3, 16, 16 ) ); 
    	TextLabel4->setText( tr( "9" ) );

    	TextLabel5 = new QLabel( this, "TextLabel5" );
    	TextLabel5->setGeometry( QRect( 199, BASELINE+3, 16, 16 ) ); 
    	TextLabel5->setText( tr( "13" ) );

    	TextLabel6 = new QLabel( this, "TextLabel6" );
    	TextLabel6->setGeometry( QRect( 255, BASELINE+3, 16, 16 ) ); 
    	TextLabel6->setText( tr( "17" ) );

    	TextLabel7 = new QLabel( this, "TextLabel7" );
    	TextLabel7->setGeometry( QRect( 312, BASELINE+3, 16, 16 ) ); 
    	TextLabel7->setText( tr( "21" ) );

    	TextLabel8 = new QLabel( this, "TextLabel8" );
    	TextLabel8->setGeometry( QRect( 368, BASELINE+3, 16, 16 ) ); 
    	TextLabel8->setText( tr( "25" ) );
	
	TextLabel9 = new QLabel( this, "TextLabel9" );
    	TextLabel9->setGeometry( QRect( 425, BASELINE+3, 16, 16 ) ); 
    	TextLabel9->setText( tr( "29" ) );
	
	TextLabel15 = new QLabel( this, "TextLabel15" );
    	TextLabel15->setGeometry( QRect( 475, BASELINE-GRID-10, 24, 16 ) ); 
    	TextLabel15->setText( tr( "10%" ) );

    	TextLabel10 = new QLabel( this, "TextLabel10" );
    	TextLabel10->setGeometry( QRect( 475, BASELINE-GRID*2-10, 24, 16 ) ); 
    	TextLabel10->setText( tr( "20%" ) );

    	TextLabel11 = new QLabel( this, "TextLabel11" ); 
    	TextLabel11->setGeometry( QRect( 475, BASELINE-GRID*4-10, 24, 16 ) ); 
    	TextLabel11->setText( tr( "40%" ) );

    	TextLabel12 = new QLabel( this, "TextLabel12" );
    	TextLabel12->setGeometry( QRect( 475, BASELINE-GRID*6-10, 24, 16 ) ); 
    	TextLabel12->setText( tr( "60%" ) );

    	TextLabel13 = new QLabel( this, "TextLabel13" );
    	TextLabel13->setGeometry( QRect( 475, BASELINE-GRID*8-10, 24, 16 ) ); 
    	TextLabel13->setText( tr( "80%" ) );
	
    	TextLabel16 = new QLabel( this, "TextLabel16" );
    	TextLabel16->setGeometry( QRect( 475, BASELINE-GRID*9-10, 24, 16 ) ); 
    	TextLabel16->setText( tr( "90%" ) );	

    	TextLabel14 = new QLabel( this, "TextLabel14" );
    	TextLabel14->setGeometry( QRect( 0, 30, 16, 16 ) ); 
    	TextLabel14->setText( tr( "L1" ) );

    	TextLabel1 = new QLabel( this, "TextLabel1" );
    	TextLabel1->setGeometry( QRect( 0, 60, 12, 20 ) ); 
    	TextLabel1->setText( tr( "I" ) );
	
	TextLabel17=new QLabel(this,"TextLabel17");
	TextLabel17->setGeometry(QRect( 180, 0, 150, 17 ));
	TextLabel17->setAlignment(AlignHCenter);
//	TextLabel17->setText( tr( "Voltage Harmonic" ) );
	
	pal=new QPalette();
	cg=new QColorGroup();

}

Bar::~Bar()
{
	delete TextLabel1;
	delete TextLabel2;
	delete TextLabel3;
	delete TextLabel4;
	delete TextLabel5;	
	delete TextLabel6;
	delete TextLabel7;
	delete TextLabel8;
	delete TextLabel9;
	delete TextLabel10;	
	delete TextLabel11;
	delete TextLabel12;
	delete TextLabel13;
	delete TextLabel14;
	delete TextLabel15;
	delete TextLabel16;
	delete TextLabel17;
	delete pal;
	delete cg;
}

void Bar::init()
{
	int i=0;
	setFrameStyle(QFrame::Box | QFrame::Raised);
	
	for(i=0;i<64;i++)
	 per[i]=0;
}

void Bar::setLineString(const QString &Line)
{
	TextLabel14->setText( Line );
}

void Bar::setAVString(const QString &AV)
{
	TextLabel1->setText(AV);
}

void Bar::setBarColor(const QColor &color)
{
	this->BarColor=color;
}

void Bar::setTitle(const QString &title,const QColor &color)
{
	cg->setColor( QColorGroup::Foreground, color );
    	cg->setColor( QColorGroup::Button, QColor( 230, 230, 230) );
    	cg->setColor( QColorGroup::Light, white );
    	cg->setColor( QColorGroup::Midlight, QColor( 242, 242, 242) );
    	cg->setColor( QColorGroup::Dark, QColor( 115, 115, 115) );
    	cg->setColor( QColorGroup::Mid, QColor( 153, 153, 153) );
    	cg->setColor( QColorGroup::Text, black );
    	cg->setColor( QColorGroup::BrightText, QColor( 250, 250, 250) );
    	cg->setColor( QColorGroup::ButtonText, black );
    	cg->setColor( QColorGroup::Base, white );
    	cg->setColor( QColorGroup::Background, QColor( 193, 193, 193) );
    	cg->setColor( QColorGroup::Shadow, black );
    	cg->setColor( QColorGroup::Highlight, QColor( 76, 89, 166) );
    	cg->setColor( QColorGroup::HighlightedText, white );
    	pal->setActive( *cg );
/*
	cg->setColor( QColorGroup::Foreground, QColor( 0, 0, 255) );
    	cg->setColor( QColorGroup::Button, QColor( 230, 230, 230) );
    	cg->setColor( QColorGroup::Light, white );
    	cg->setColor( QColorGroup::Midlight, white );
    	cg->setColor( QColorGroup::Dark, QColor( 115, 115, 115) );
    	cg->setColor( QColorGroup::Mid, QColor( 153, 153, 153) );
    	cg->setColor( QColorGroup::Text, black );
    	cg->setColor( QColorGroup::BrightText, QColor( 250, 250, 250) );
    	cg->setColor( QColorGroup::ButtonText, black );
    	cg->setColor( QColorGroup::Base, white );
    	cg->setColor( QColorGroup::Background, QColor( 230, 230, 230) );
    	cg->setColor( QColorGroup::Shadow, black );
    	cg->setColor( QColorGroup::Highlight, QColor( 76, 89, 166) );
    	cg->setColor( QColorGroup::HighlightedText, white );
    	pal->setInactive( *cg );
	cg->setColor( QColorGroup::Foreground, QColor( 128, 128, 128) );
    	cg->setColor( QColorGroup::Button, QColor( 230, 230, 230) );
    	cg->setColor( QColorGroup::Light, white );
    	cg->setColor( QColorGroup::Midlight, white );
    	cg->setColor( QColorGroup::Dark, QColor( 115, 115, 115) );
    	cg->setColor( QColorGroup::Mid, QColor( 153, 153, 153) );
    	cg->setColor( QColorGroup::Text, black );
    	cg->setColor( QColorGroup::BrightText, QColor( 250, 250, 250) );
    	cg->setColor( QColorGroup::ButtonText, QColor( 128, 128, 128) );
    	cg->setColor( QColorGroup::Base, white );
    	cg->setColor( QColorGroup::Background, QColor( 230, 230, 230) );
    	cg->setColor( QColorGroup::Shadow, black );
    	cg->setColor( QColorGroup::Highlight, QColor( 76, 89, 166) );
    	cg->setColor( QColorGroup::HighlightedText, white );
	pal->setDisabled( *cg );
*/
	TextLabel17->setPalette( *pal );
	TextLabel17->setText( title);
}

void Bar::paintEvent(QPaintEvent*)
{
   	int i,tmp1;
   	int xPos;
	
   	painter=new QPainter;  
   	painter->begin(this);   

//   	painter->lineTo(240,180);
	painter->setPen(QPen(gray,1,QPen::DashLine));

   	painter->drawLine(20,BASELINE-GRID,473,BASELINE-GRID);		//%10线
   	painter->drawLine(20,BASELINE-GRID*2,473,BASELINE-GRID*2);		//%20线
   	painter->drawLine(20,BASELINE-GRID*4,473,BASELINE-GRID*4);		//%40线
   	painter->drawLine(20,BASELINE-GRID*6,473,BASELINE-GRID*6);		//%60线
   	painter->drawLine(20,BASELINE-GRID*8,473,BASELINE-GRID*8);		//%80线
   	painter->drawLine(20,BASELINE-GRID*9,473,BASELINE-GRID*9);		//%90线
	
	painter->setPen(QPen(black,1,QPen::SolidLine));
   	painter->drawLine(18,BASELINE+2,473,BASELINE+2);	
   	painter->drawLine(18,STARTLINE,18,BASELINE+2);
   	painter->setBrush(QBrush(this->BarColor,SolidPattern));
   
   	xPos=20;
   	for(i=0;i<32;i++){
//     		painter->drawRect(20,160-150,3,150);
//     		tmp=rand()%160;
		tmp1=per[i];
     		painter->drawRect(xPos,BASELINE-tmp1,11,tmp1);
    	 	xPos+=14;
   	}
    	painter->end();
	
	delete painter;
}

void Bar::drawBar(double *Harmonic,int cnt)
{
	double tmp,tmp1;
	int i;
	
//	this->erase();					// erase widget contents
	tmp=0;
	for(i=0;i<cnt/2;i++){
		tmp+=Harmonic[i];
	}
	if(tmp==0)
	 return;
	tmp1=tmp;
	for(i=0;i<cnt/2;i++){
		this->per[i]=(int)((BASELINE-STARTLINE)*Harmonic[i]/tmp1);
//		qDebug("%d=%d",i,per[i]);
	}
	this->update();					// draw bar	
}