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/***************************************************************************
numSlider.cpp - description
-------------------
begin : Sat Dec 1 2001
copyright : (C)2001 - Andrew Richards
email : ajr@users.sourceforge.net
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software *
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
* USA. *
* *
* For license exceptions see LICENSE.EXC file, attached with the source *
* code. *
* *
***************************************************************************/
#include <stdio.h>
#include <stdlib.h>
// Local
#include "numSlider.h"
extern int max(int a, int b);
numSlider::numSlider( QWidget *parent, const char *name )
: QWidget(parent, name)
{
init(0, 10, 0, 0, QBoxLayout::LeftToRight);
}
numSlider::numSlider( QBoxLayout::Direction aDir, QWidget *parent, const char *name )
: QWidget(parent, name)
{
init(0, 10, 0, 0, aDir);
}
numSlider::numSlider(double minValue, double maxValue, int decimals,
double value, QBoxLayout::Direction aDir,
QWidget *parent, const char *name )
: QWidget(parent, name)
{
init(minValue, maxValue, decimals, value, aDir);
}
void
numSlider::init(double minValue, double maxValue, int decimals, double value,
QBoxLayout::Direction aDir)
{
QSlider::Orientation orient;
QBoxLayout *bl;
theDecimals=decimals;
dir=aDir;
bl=new QBoxLayout(this, dir, 2);
if ((dir==QBoxLayout::TopToBottom) || (dir==QBoxLayout::BottomToTop))
orient=QSlider::Vertical;
else
orient=QSlider::Horizontal;
slider=new QSlider(0, SLIDERMAX, SLIDERMAX/20, 0, orient, this);
if (orient==QSlider::Vertical)
slider->setFixedWidth(20);
else
slider->setFixedHeight(20);
bl->addWidget(slider);
num=new QLineEdit(this);
num->setFixedHeight(20);
bl->addWidget(num);
// QDoubleValidator *dv=new QDoubleValidator(theMin,theMax,0,this);
// num->setValidator(dv);
bl->activate();
theValue=value;
theMin=minValue;
theMax=maxValue;
char str[16];
int numWidth=max(20,num->fontMetrics().width(str));
numWidth=max(numWidth,num->fontMetrics().width(str));
num->setFixedWidth(numWidth);
range=theMax-theMin;
connect(slider, SIGNAL(sliderMoved(int)), this, SLOT(sliderChanged(int)));
connect(num, SIGNAL(returnPressed()), this, SLOT(numberChanged()));
updateValue();
numberChanged();
}
void
numSlider::sliderChanged(int value)
{
theValue=range*value/SLIDERMAX+theMin;
updateValue();
}
void
numSlider::updateValue()
{
QString numText;
numText.sprintf("%.*f",theDecimals,theValue);
num->setText(numText);
emit valueChanged(theValue);
}
void
numSlider::numberChanged()
{
theValue=num->text().toInt();
if (theValue>theMax) { theValue=theMax; }
if (theValue<theMin) { theValue=theMin; }
int sliderValue=int(SLIDERMAX*(theValue-theMin)/range);
slider->setValue(sliderValue);
updateValue();
}
double
numSlider::value()
{
return(theValue);
}
#include "numSlider.moc"
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