source: tspsg-svn/trunk/src/settingsdialog.cpp @ 168

/*

 *  TSPSG: TSP Solver and Generator

 *  Copyright (C) 2007-2011 Lёppa <contacts[at]oleksii[dot]name>

 *

 *  $Id: settingsdialog.cpp 162 2011-04-14 19:30:23Z laleppa $

 *  $URL: https://tspsg.svn.sourceforge.net/svnroot/tspsg/trunk/src/settingsdialog.cpp $

 *

 *  This file is part of TSPSG.

 *

 *  TSPSG 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 3 of the License, or

 *  (at your option) any later version.

 *

 *  TSPSG 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 TSPSG.  If not, see <http://www.gnu.org/licenses/>.

 */



#include "settingsdialog.h"



/*!

 * \brief Class constructor.

 * \param parent Settings Dialog parent widget.

 *

 * Initializes Settings Dialog and creates its layout based on target OS.

 */

SettingsDialog::SettingsDialog(QWidget *parent)

    : QDialog(parent), _newFont(false), _newColor(false), _translucency(0)

{

    setupUi(this);



    setWindowIcon(GET_ICON("preferences-system"));



    buttonBox->button(QDialogButtonBox::Ok)->setIcon(GET_ICON("dialog-ok"));

#ifndef QT_NO_STATUSTIP

    buttonBox->button(QDialogButtonBox::Ok)->setStatusTip(tr("Save new preferences"));

#endif

    buttonBox->button(QDialogButtonBox::Ok)->setCursor(QCursor(Qt::PointingHandCursor));

    buttonBox->button(QDialogButtonBox::Cancel)->setIcon(GET_ICON("dialog-cancel"));

#ifndef QT_NO_STATUSTIP

    buttonBox->button(QDialogButtonBox::Cancel)->setStatusTip(tr("Close without saving preferences"));

#endif

    buttonBox->button(QDialogButtonBox::Cancel)->setCursor(QCursor(Qt::PointingHandCursor));



    buttonColor->setIcon(GET_ICON("format-text-color"));

    buttonFont->setIcon(GET_ICON("preferences-desktop-font"));

    buttonHelp->setIcon(GET_ICON("help-hint"));



QPalette p = bgWhite->palette();

    p.setColor(QPalette::Window, p.color(QPalette::Base));

    bgWhite->setPalette(p);



    p = lineHorizontal->palette();

    p.setColor(QPalette::Window, p.color(QPalette::Text));

    lineHorizontal->setPalette(p);



// Layout helpers

QBoxLayout *box;

QHBoxLayout *hbox;

#ifndef QT_NO_PRINTER

    cbHQGraph = new QCheckBox(bgWhite);

    cbHQGraph->setObjectName("cbHQGraph");

#ifndef QT_NO_STATUSTIP

    cbHQGraph->setStatusTip(tr("Higher quality graph looks much better when printing but uglier on the screen"));

#endif // QT_NO_STATUSTIP

    cbHQGraph->setText(tr("Draw solution graph in higher quality"));

    cbHQGraph->setCursor(QCursor(Qt::PointingHandCursor));



    box = static_cast<QBoxLayout *>(tabOutput->layout());

    hbox = new QHBoxLayout();

    hbox->addSpacing(10);

    hbox->addWidget(cbHQGraph);

    box->insertLayout(box->indexOf(cbGenerateGraph) + 2, hbox);

    connect(cbGenerateGraph, SIGNAL(toggled(bool)), cbHQGraph, SLOT(setEnabled(bool)));

#endif



    if (hasUpdater()) {

        cbCheck4Updates = new QCheckBox(bgWhite);

        cbCheck4Updates->setObjectName("cbCheck4Updates");

#ifndef QT_NO_STATUSTIP

        cbCheck4Updates->setStatusTip(tr("Automatically check for updates at the given interval"));

#endif // QT_NO_STATUSTIP

        cbCheck4Updates->setText(tr("Check for updates every"));

        cbCheck4Updates->setCursor(QCursor(Qt::PointingHandCursor));



        spinUpdateCheckInterval = new QSpinBox(bgWhite);

        spinUpdateCheckInterval->setObjectName("spinUpdateCheckInterval");

#ifndef QT_NO_STATUSTIP

        spinUpdateCheckInterval->setStatusTip(tr("Minimal interval at which to check for updates"));

#endif // QT_NO_STATUSTIP

        spinUpdateCheckInterval->setSuffix(tr(" days", "Don't forget a space at the beginning!"));

        spinUpdateCheckInterval->setRange(1, 365);

        spinUpdateCheckInterval->setCursor(QCursor(Qt::PointingHandCursor));



        connect(cbCheck4Updates, SIGNAL(toggled(bool)), spinUpdateCheckInterval, SLOT(setEnabled(bool)));



        box = static_cast<QBoxLayout *>(tabGeneral->layout());

        hbox = new QHBoxLayout();

        hbox->setSpacing(0);

        hbox->addWidget(cbCheck4Updates);

        hbox->addWidget(spinUpdateCheckInterval);

        hbox->addStretch();

        box->insertLayout(box->indexOf(cbUseNativeDialogs) + 1, hbox);

    } else

        cbCheck4Updates = NULL;



#ifdef HANDHELD

QVBoxLayout *vbox1; // Layout helper



#ifdef Q_WS_WINCE_WM

    // On screens with small height when SIP is shown and the window is resized

    // there is not enought space for all elements.

    // So we show the scrollbars to be able to access them.

QScrollArea *scrollArea = new QScrollArea(this);

    scrollArea->setFrameShape(QFrame::NoFrame);

    scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);

    scrollArea->setWidgetResizable(true);

    scrollArea->setWidget(bgWhite);

#else

    buttons->insertStretch(buttons->indexOf(buttonHelp) + 1);

#endif // Q_WS_WINCE_WM



    bgWhite->layout()->setMargin(0);



    // Central layout

    vbox1 = new QVBoxLayout(this);

    vbox1->setMargin(0);

    vbox1->setSpacing(0);

#ifdef Q_WS_WINCE_WM

    vbox1->addWidget(scrollArea);

#else

    vbox1->addWidget(bgWhite);

#endif // Q_WS_WINCE_WM

    vbox1->addWidget(bgGrey);

    setLayout(vbox1);

#else // HANDHELD

QVBoxLayout *vbox; // Layout helper



#ifndef HANDHELD

    if (QtWin::isCompositionEnabled()) {

        cbUseTranslucency = new QCheckBox(bgWhite);

        cbUseTranslucency->setObjectName("cbUseTranslucency");

#ifndef QT_NO_STATUSTIP

        cbUseTranslucency->setStatusTip(tr("Make Main Window background translucent"));

#endif // QT_NO_STATUSTIP

        cbUseTranslucency->setText(tr("Use translucency effects"));

        cbUseTranslucency->setCursor(QCursor(Qt::PointingHandCursor));

    }

#endif // HANDHELD



    cbSaveState = new QCheckBox(bgWhite);

    cbSaveState->setObjectName("cbSaveState");

#ifndef QT_NO_STATUSTIP

    cbSaveState->setStatusTip(tr("Restore main window state and position on application restart"));

#endif // QT_NO_STATUSTIP

    cbSaveState->setText(tr("Save main window state and position"));

    cbSaveState->setCursor(QCursor(Qt::PointingHandCursor));



    imgIcon = new QLabel(this);

    imgIcon->setObjectName("imgIcon");

    imgIcon->setSizePolicy(QSizePolicy::Fixed,QSizePolicy::Expanding);

    imgIcon->setFrameShape(QFrame::NoFrame);

    imgIcon->setPixmap(GET_ICON("preferences-system").pixmap(128, 128));

    imgIcon->setStyleSheet("background-color: #0080C0; padding-top: 11px;");

    imgIcon->setAlignment(Qt::AlignTop | Qt::AlignHCenter);

    imgIcon->setMinimumWidth(150);



    labelHint = new QLabel(bgGrey);

    labelHint->setObjectName("labelHint");

    labelHint->setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Preferred);

    labelHint->setMinimumSize(QSize(250, 28));

    labelHint->setMaximumSize(QSize(QWIDGETSIZE_MAX, 28));

    labelHint->setTextFormat(Qt::PlainText);

//      labelHint->setAlignment(Qt::AlignLeft | Qt::AlignTop);

    labelHint->setWordWrap(true);

#ifndef QT_NO_STATUSTIP

    labelHint->setStatusTip(tr("Hover mouse pointer over dialog elements to get additional help"));

#endif // QT_NO_STATUSTIP



    lineVertical = new QFrame(this);

    lineVertical->setObjectName("lineVertical");

    lineVertical->setFrameShadow(QFrame::Plain);

    lineVertical->setFrameShape(QFrame::VLine);

    lineVertical->setLineWidth(2);



    // Top line

    hbox = new QHBoxLayout();

    hbox->addWidget(imgIcon);

    hbox->addWidget(lineVertical);

    hbox->addWidget(bgWhite);



    box = static_cast<QBoxLayout *>(tabGeneral->layout());

    box->insertWidget(box->indexOf(cbUseNativeDialogs) + 1, cbSaveState);

#ifndef HANDHELD

    if (QtWin::isCompositionEnabled())

        box->insertWidget(box->indexOf(cbUseNativeDialogs) + 1, cbUseTranslucency);

#endif // HANDHELD



    // Inserting label for hints to the bottom part (with grey bg)

    buttons->insertWidget(buttons->indexOf(buttonHelp) + 1, labelHint, 1);



    // Central layout

    vbox = new QVBoxLayout(this);

    vbox->setMargin(0);

    vbox->setSpacing(0);

    vbox->addLayout(hbox);

    vbox->addWidget(bgGrey);

    setLayout(vbox);

#endif // HANDHELD



#ifdef Q_WS_WINCE_WM

    // We need to react to SIP show/hide and resize the window appropriately

    connect(QApplication::desktop(), SIGNAL(workAreaResized(int)), SLOT(desktopResized(int)));

#endif // Q_WS_WINCE_WM

    connect(spinRandMin, SIGNAL(valueChanged(int)), SLOT(spinRandMinValueChanged(int)));

    connect(buttonFont, SIGNAL(clicked()), SLOT(buttonFontClicked()));

    connect(buttonColor, SIGNAL(clicked()), SLOT(buttonColorClicked()));

    setWindowFlags(windowFlags() ^ Qt::WindowContextHelpButtonHint);

#if !defined(QT_NO_STATUSTIP) && !defined(HANDHELD)

    // Setting initial text of dialog hint label to own status tip text.

    labelHint->setText(labelHint->statusTip());

#endif // HANDHELD



    settings = new QSettings(QSettings::IniFormat, QSettings::UserScope, "TSPSG", "tspsg", this);

    settings->remove("SettingsReset");



    cbAutosize->setChecked(settings->value("Autosize", DEF_AUTOSIZE).toBool());

    cbSaveLastUsed->setChecked(settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool());

    cbUseNativeDialogs->setChecked(settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool());

#ifndef HANDHELD

    if (QtWin::isCompositionEnabled())

        cbUseTranslucency->setChecked(settings->value("UseTranslucency", DEF_USE_TRANSLUCENCY).toBool());

#endif // HANDHELD

#ifndef HANDHELD

    cbSaveState->setChecked(settings->value("SavePos", DEF_SAVEPOS).toBool());

#endif // HANDHELD

    if (cbCheck4Updates != NULL) {

        settings->beginGroup("Check4Updates");

        cbCheck4Updates->setChecked(settings->value("Enabled", DEF_CHECK_FOR_UPDATES).toBool());

        spinUpdateCheckInterval->setValue(settings->value("Interval", DEF_UPDATE_CHECK_INTERVAL).toInt());

        settings->endGroup();

        spinUpdateCheckInterval->setEnabled(cbCheck4Updates->isChecked());

    }



    settings->beginGroup("Task");

    cbSymmetricMode->setChecked(settings->value("SymmetricMode", DEF_SYMMETRIC_MODE).toBool());

    spinFractionalAccuracy->setValue(settings->value("FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt());

    spinRandMin->setMaximum(MAX_RAND_VALUE);

    spinRandMin->setValue(settings->value("RandMin",DEF_RAND_MIN).toInt());

    spinRandMax->setMaximum(MAX_RAND_VALUE);

    spinRandMax->setValue(settings->value("RandMax",DEF_RAND_MAX).toInt());

    cbFractionalRandom->setChecked(settings->value("FractionalRandom", DEF_FRACTIONAL_RANDOM).toBool());

    settings->endGroup();



    settings->beginGroup("Output");

    cbGenerateGraph->setChecked(settings->value("GenerateGraph", DEF_GENERATE_GRAPH).toBool());



#ifndef QT_NO_PRINTER

    cbHQGraph->setEnabled(cbGenerateGraph->isChecked());

    cbHQGraph->setChecked(settings->value("HQGraph", DEF_HQ_GRAPH).toBool());

#endif



#if !defined(NOSVG) && (QT_VERSION >= 0x040500)

    comboGraphImageFormat->addItem("svg");

#endif // NOSVG && QT_VERSION >= 0x040500

    // We create whitelist of formats, supported by the most popular web browsers according to

    //  http://en.wikipedia.org/wiki/Comparison_of_web_browsers#Image_format_support

    //  + TIFF format (there are plugins to support it).

QStringList whitelist;

    whitelist << "bmp" << "jpeg" << "png" << "tiff" << "xbm";

    foreach (QByteArray format, QImageWriter::supportedImageFormats()) {

        if (whitelist.contains(format))

            comboGraphImageFormat->addItem(format);

    }

    comboGraphImageFormat->model()->sort(0);

    comboGraphImageFormat->setCurrentIndex(comboGraphImageFormat->findText(settings->value("GraphImageFormat", DEF_GRAPH_IMAGE_FORMAT).toString(), Qt::MatchFixedString));

    if (comboGraphImageFormat->currentIndex() < 0)

        comboGraphImageFormat->setCurrentIndex(comboGraphImageFormat->findText(DEF_GRAPH_IMAGE_FORMAT, Qt::MatchFixedString));

    labelGraphImageFormat->setEnabled(cbGenerateGraph->isChecked());

    comboGraphImageFormat->setEnabled(cbGenerateGraph->isChecked());

    cbEmbedGraphIntoHTML->setChecked(settings->value("EmbedGraphIntoHTML", DEF_EMBED_GRAPH_INTO_HTML).toBool());

    cbEmbedGraphIntoHTML->setEnabled(cbGenerateGraph->isChecked());



    cbShowMatrix->setChecked(settings->value("ShowMatrix", DEF_SHOW_MATRIX).toBool());

    cbCitiesLimit->setEnabled(cbShowMatrix->isChecked());

    cbCitiesLimit->setChecked(settings->value("UseShowMatrixLimit", DEF_USE_SHOW_MATRIX_LIMIT && cbShowMatrix->isChecked()).toBool());

    spinCitiesLimit->setEnabled(cbShowMatrix->isChecked() && cbCitiesLimit->isChecked());

    spinCitiesLimit->setValue(settings->value("ShowMatrixLimit", DEF_SHOW_MATRIX_LIMIT).toInt());

    spinCitiesLimit->setMaximum(MAX_NUM_CITIES);

    cbScrollToEnd->setChecked(settings->value("ScrollToEnd", DEF_SCROLL_TO_END).toBool());



    font = qvariant_cast<QFont>(settings->value("Font", QFont(DEF_FONT_FACE, DEF_FONT_SIZE)));

    color = qvariant_cast<QColor>(settings->value("Colors/Text", DEF_TEXT_COLOR));

    settings->endGroup();



#ifdef HANDHELD

    setWindowState(Qt::WindowMaximized);

#else

    adjustSize();

#endif // Q_WS_WINCE_WM

}



/*!

 * \brief Indicates whether or not the font color has been changed.

 * \return \c true if font color changed, otherwise \c false.

 */

bool SettingsDialog::colorChanged() const

{

    return _newColor;

}



/*!

 * \brief Indicates whether or not the font properties have been changed.

 * \return \c true if font properties changed, otherwise \c false.

 */

bool SettingsDialog::fontChanged() const

{

    return _newFont;

}



/*!

 * \brief Indicates whether and how the translucency setting was changed

 * \retval -1 the translucency was \em disabled.

 * \retval  0 the translucency <em>didn't change</em>.

 * \retval  1 the translucency was \em enabled.

 */

qint8 SettingsDialog::translucencyChanged() const

{

    return _translucency;

}



/* Privates **********************************************************/



void SettingsDialog::accept()

{

    if (QApplication::keyboardModifiers() & Qt::ShiftModifier) {

        if (QMessageBox::question(this, tr("Settings Reset"), tr("Do you really want to <b>reset all application settings to their defaults</b>?"), QMessageBox::RestoreDefaults | QMessageBox::Cancel) == QMessageBox::RestoreDefaults) {

            _newFont = (font != QFont(DEF_FONT_FACE, DEF_FONT_SIZE));

            _newColor = (color != DEF_TEXT_COLOR);

            settings->remove("");

            settings->setValue("SettingsReset", true);

            QDialog::accept();

            QMessageBox::information(this->parentWidget(), tr("Settings Reset"), tr("All settings where successfully reset to their defaults.\nIt is recommended to restart the application now."));

            return;

        } else

            return;

    }

    settings->setValue("Autosize", cbAutosize->isChecked());

    settings->setValue("SaveLastUsed", cbSaveLastUsed->isChecked());

    settings->setValue("UseNativeDialogs", cbUseNativeDialogs->isChecked());

#ifndef HANDHELD

    if (QtWin::isCompositionEnabled()) {

bool old = settings->value("UseTranslucency", DEF_USE_TRANSLUCENCY).toBool();

        if ((!old && cbUseTranslucency->isChecked()) || (old && !cbUseTranslucency->isChecked())) {

            _translucency = old ? -1 : 1;

        } else

            _translucency = 0;

        settings->setValue("UseTranslucency", cbUseTranslucency->isChecked());

    }

    settings->setValue("SavePos", cbSaveState->isChecked());

#endif // HANDHELD

    if (cbCheck4Updates != NULL) {

        settings->beginGroup("Check4Updates");

        settings->setValue("Enabled", cbCheck4Updates->isChecked());

        if (cbCheck4Updates->isChecked())

            settings->setValue("Interval", spinUpdateCheckInterval->value());

        settings->endGroup();

    }



    settings->beginGroup("Task");

    settings->setValue("SymmetricMode", cbSymmetricMode->isChecked());

    settings->setValue("FractionalAccuracy", spinFractionalAccuracy->value());

    settings->setValue("RandMin", spinRandMin->value());

    settings->setValue("RandMax", spinRandMax->value());

    settings->setValue("FractionalRandom", cbFractionalRandom->isChecked());

    settings->endGroup();



    settings->beginGroup("Output");

    settings->setValue("GenerateGraph", cbGenerateGraph->isChecked());

    if (cbGenerateGraph->isChecked()) {

#ifndef QT_NO_PRINTER

        settings->setValue("HQGraph", cbHQGraph->isChecked());

#endif

        if (cbGenerateGraph->isChecked()) {

            if (comboGraphImageFormat->currentIndex() >= 0)

                settings->setValue("GraphImageFormat", comboGraphImageFormat->currentText());

            else

                settings->setValue("GraphImageFormat", DEF_GRAPH_IMAGE_FORMAT);

        }

        settings->setValue("EmbedGraphIntoHTML", cbEmbedGraphIntoHTML->isChecked());

    }

    settings->setValue("ShowMatrix", cbShowMatrix->isChecked());

    settings->setValue("UseShowMatrixLimit", cbShowMatrix->isChecked() && cbCitiesLimit->isChecked());

    if (cbCitiesLimit->isChecked())

        settings->setValue("ShowMatrixLimit", spinCitiesLimit->value());

    settings->setValue("ScrollToEnd", cbScrollToEnd->isChecked());

    if (_newFont)

        settings->setValue("Font", font);

    if (_newColor)

        settings->setValue("Colors/Text", color);

    settings->endGroup();

    QDialog::accept();

}



void SettingsDialog::buttonColorClicked()

{

QColor color = QColorDialog::getColor(this->color,this);

    if (color.isValid() && (this->color != color)) {

        this->color = color;

        _newColor = true;

    }

}



void SettingsDialog::buttonFontClicked()

{

bool ok;

QFont font = QFontDialog::getFont(&ok,this->font,this);

    if (ok && (this->font != font)) {

        this->font = font;

        _newFont = true;

    }

}



#ifdef Q_WS_WINCE_WM

void SettingsDialog::desktopResized(int screen)

{

    if (screen != 0)

        return;



QRect availableGeometry = QApplication::desktop()->availableGeometry(0);

    if (currentGeometry != availableGeometry) {

        QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));

        /*!

         * \hack HACK: This hack checks whether \link QDesktopWidget::availableGeometry() availableGeometry()\endlink's \c top + \c hegiht = \link QDesktopWidget::screenGeometry() screenGeometry()\endlink's \c height.

         *  If \c true, the window gets maximized. If we used \c setGeometry() in this case, the bottom of the

         *  window would end up being behind the soft buttons. Is this a bug in Qt or Windows Mobile?

         */

        if ((availableGeometry.top() + availableGeometry.height()) == QApplication::desktop()->screenGeometry().height()) {

            setWindowState(windowState() | Qt::WindowMaximized);

        } else {

            if (windowState() & Qt::WindowMaximized)

                setWindowState(windowState() ^ Qt::WindowMaximized);

            setGeometry(availableGeometry);

        }

        currentGeometry = availableGeometry;

        QApplication::restoreOverrideCursor();

    }

}



void SettingsDialog::showEvent(QShowEvent *ev)

{

    desktopResized(0);



    QWidget::showEvent(ev);

}

#endif // Q_WS_WINCE_WM



void SettingsDialog::spinRandMinValueChanged(int val) {

    spinRandMax->setMinimum(val);

}



#if !defined(QT_NO_STATUSTIP) && !defined(HANDHELD)

bool SettingsDialog::event(QEvent *ev)

{

    // Checking for StatusTip event and if tip text is not empty string

    // setting it as text of the dialog hint label. Otherwise, setting

    // dialog hint label text to own status tip text.

    if (ev->type() == QEvent::StatusTip) {

QString tip = static_cast<QStatusTipEvent *>(ev)->tip();

        if (tip.length() != 0)

            labelHint->setText(tip);

        else

            labelHint->setText(labelHint->statusTip());

        return true;

    } else

        return QDialog::event(ev);

}

#endif // HANDHELD