www.pudn.com > calculator.rar > conversion.cpp
/****************************************************************************
**
** Copyright (C) 2000-2006 TROLLTECH ASA. All rights reserved.
**
** This file is part of the Phone Edition of the Qtopia Toolkit.
**
** Licensees holding a valid license agreement from Trolltech or any of its
** authorized distributors may use this file in accordance with
** the License Agreement provided with the Licensed Software.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Trolltech's Commercial License Agreements.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**
**
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
#ifdef ENABLE_CONVERSION
#include "conversion.h"
#include "../doubleinstruction.h"
#include
#include
#include
#include
#include
#include
double UnitConversionInstruction::from = 0;
double UnitConversionInstruction::to = 0;
char UnitConversionInstruction::tempFrom = 'n';
char UnitConversionInstruction::tempTo = 'n';
FormConversion::FormConversion(QWidget *parent) : DecimalInputWidget(parent),
currentButton(0)
{
systemEngine->registerInstruction(new UnitConversionInstruction());
setObjectName( "ConversionForm" ); //no tr
InputWidgetLayout = new QGridLayout(this);
InputWidgetLayout->setSpacing( 3 );
InputWidgetLayout->setMargin( 0 );
init(0, 0);
}
void FormConversion::init(int fromRow, int fromCol)
{
QFont big(font());
big.setWeight(QFont::Bold);
typeSelector = new QComboBox(this);
typeSelector->setSizePolicy(sizePolicy());
InputWidgetLayout->addWidget(typeSelector, fromRow, fromCol, 1, 2 );
PBC = new QPushButton(this);
PBC->setText(tr("CE/C"));
PBC->setFont(big);
PBC->setSizePolicy(sizePolicy());
InputWidgetLayout->addWidget(PBC, fromRow, fromCol+2, 1, 2);
QRect screenRect = QtopiaApplication::desktop()->availableGeometry();
bool portrait = screenRect.width() < screenRect.height();
modeList = new QList();
conversionMode *nextMode;
QWidget *w;
conversionData *nextData;
conversionStack = new QStackedWidget(this);
conversionStack->setSizePolicy(sizePolicy());
// temperature conversions are builtin
nextMode = new conversionMode;
nextMode->name = QString( tr("Temperature") );
nextMode->dataList = new QList();
typeSelector->addItem(nextMode->name);
w = new QWidget();
QBoxLayout *gl2;
if (portrait)
gl2 = new QHBoxLayout(w);
else
gl2 = new QVBoxLayout(w);
gl2->setSpacing( 3 );
gl2->setMargin( 0 );
//InputWidgetLayout->addLayout(gl2, fromRow, fromCol, 1, 4);
conversionStack->addWidget(w);
nextData = new conversionData;
nextData->name = QString( tr("fahrenheit") );
nextData->button = new QPushButton(w);
nextData->button->setCheckable(true);
nextData->button->setText(nextData->name);
nextData->button->setSizePolicy(sizePolicy());
connect(nextData->button,SIGNAL(clicked()),this,SLOT(fahrenheitButtonClicked()));
nextMode->dataList->append(nextData);
gl2->addWidget(nextData->button);
nextData = new conversionData;
nextData->name = QString( tr("celcius") );
nextData->button = new QPushButton(w);
nextData->button->setCheckable(true);
nextData->button->setText(nextData->name);
nextData->button->setSizePolicy(sizePolicy());
connect(nextData->button,SIGNAL(clicked()),this,SLOT(celciusButtonClicked()));
nextMode->dataList->append(nextData);
gl2->addWidget(nextData->button);
nextData = new conversionData;
nextData->name = QString( tr("kelvin") );
nextData->button = new QPushButton(w);
nextData->button->setCheckable(true);
nextData->button->setText(nextData->name);
nextData->button->setSizePolicy(sizePolicy());
connect(nextData->button,SIGNAL(clicked()),this,SLOT(kelvinButtonClicked()));
nextMode->dataList->append(nextData);
gl2->addWidget(nextData->button);
modeList->append(nextMode);
// end setting up temperature conversion
// read conversion data files
QString path = Qtopia::qtopiaDir() + "etc/calculator/";
QDir directory;
directory.setPath( path );
QStringList fileList = directory.entryList(QStringList("*.conf"));
if ( !fileList.count() )
qDebug("No conversion data files are available.");
else {
QFile myFile;
QGridLayout *gl;
//iterate over found conf files
for (int i = 0; i < fileList.count(); i++) {
QString fileName = fileList[i];
QSettings cfg(path+fileName, QSettings::IniFormat);
QStringList groups = cfg.childGroups();
nextMode = new conversionMode;
nextMode->dataList = new QList();
w = new QWidget();
gl = new QGridLayout(w);
//gl = new FlowLayout(w, 5, 3);
gl->setSizeConstraint( QLayout::SetDefaultConstraint );
gl->setSpacing( 3 );
gl->setMargin( 0 );
conversionStack->addWidget(w);
for (int j = 0; j < groups.count(); j++) {
QString group = groups[j];
if (group == "Translation")
continue;
cfg.beginGroup(group);
if (group == "Name") {
nextMode->name = cfg.value("Name").toString();
typeSelector->addItem(nextMode->name);
} else {
nextData = new conversionData;
nextData->name = cfg.value("Name").toString();
nextData->factor = cfg.value("Factor").toString().toDouble();
if (nextData->factor == 1)
nextMode->defaultType = nextData;
nextMode->dataList->append(nextData);
//create the button for this data conversion
QPushButton *pb = new QPushButton(w);
pb->setCheckable(true);
pb->setText(nextData->name);
pb->setSizePolicy(sizePolicy());
int cRow = cfg.value("Row").toInt();
int cCol = cfg.value("Column").toInt();
if (cRow < 0 || cCol < 0) {
qWarning(QString("Missing grid position in config file: %1 group: %2").arg(fileName).arg(nextData->name).toLocal8Bit().constData());
} else if (portrait)
gl->addWidget(pb, cRow, cCol);
else
gl->addWidget(pb, cCol, cRow);
//gl->addWidget(pb);
connect(pb, SIGNAL(clicked()), this, SLOT(conversionButtonClicked()));
nextData->button = pb;
}
}
modeList->append(nextMode);
}
}
connect (PBC, SIGNAL(clicked()), this, SLOT(CClicked()));
connect (typeSelector, SIGNAL(activated(int)), this, SLOT(selectType(int)));
// Remember last selection
QSettings config("Trolltech","calculator"); // No tr
config.beginGroup("Conversion plugin");
int lastView = config.value("lastView",0).toInt();
if (lastView > (int)modeList->count()+1 || lastView < 0)
lastView = 0;
typeSelector->setCurrentIndex(lastView);
conversionStack->setCurrentIndex(lastView);
if (portrait) {
InputWidgetLayout->addWidget(conversionStack, fromRow+1, fromCol, 2, 4);
DecimalInputWidget::init(fromRow+3, fromCol);
} else {
InputWidgetLayout->addWidget(conversionStack, fromRow+1, fromCol, 5, 2);
DecimalInputWidget::init(fromRow+1, fromCol+2);
}
}
FormConversion::~FormConversion() {
QSettings config("Trolltech","calculator"); // No tr
config.beginGroup("Conversion plugin"); // No tr
config.setValue("lastView", conversionStack->currentIndex());
}
void FormConversion::showEvent ( QShowEvent *e ) {
systemEngine->setAccType("Double"); // No tr
QWidget::showEvent(e);
}
void FormConversion::selectType(int i) {
UnitConversionInstruction::tempFrom = UnitConversionInstruction::tempTo = 'n';
int currentMode = conversionStack->currentIndex();
QList dataList = *(modeList->at(currentMode))->dataList;
for (int c = 0;c < dataList.count(); c++) {
QPushButton *b = (*(dataList.at(c))).button;
if (b->isChecked())
b->toggle();
}
currentButton = 0;
conversionStack->setCurrentIndex(i);
}
void FormConversion::conversionButtonClicked() {
doConversion();
}
void FormConversion::doConversion() {
int currentMode = conversionStack->currentIndex();
QList dataList = *(modeList->at(currentMode))->dataList;
bool newButtonFound = false;
for (int c = 0;c < dataList.count(); c++) {
QPushButton *b = (*(dataList.at(c))).button;
if (b->isChecked()) {
if (b == currentButton) {
b->toggle();
} else {
newButton = b;
newFactor = (*(dataList.at(c))).factor;
newButtonFound = true;
}
}
}
if (newButtonFound) {
if (currentButton) { // temp convert ignores these anyway
UnitConversionInstruction::from = currentFactor;
UnitConversionInstruction::to = newFactor;
systemEngine->pushInstruction("UnitConversion");
}
currentButton = newButton;
currentFactor = newFactor;
} else { // current button toggled off
currentButton = 0;
}
}
void FormConversion::kelvinButtonClicked() {
UnitConversionInstruction::tempFrom = UnitConversionInstruction::tempTo;
UnitConversionInstruction::tempTo = 'k';
doConversion();
}
void FormConversion::celciusButtonClicked() {
UnitConversionInstruction::tempFrom = UnitConversionInstruction::tempTo;
UnitConversionInstruction::tempTo = 'c';
doConversion();
}
void FormConversion::fahrenheitButtonClicked() {
UnitConversionInstruction::tempFrom = UnitConversionInstruction::tempTo;
UnitConversionInstruction::tempTo = 'f';
doConversion();
}
void FormConversion::CClicked() {
systemEngine->hardReset();
}
#endif //ENABLE_CONVERSION