qt3/tools/qtconfig/mainwindow.cpp

/**********************************************************************
** Copyright (C) 2000-2008 Trolltech ASA.  All rights reserved.
**
** This file is part of Qt Configuration.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free Qt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with
** the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/

#include "mainwindow.h"
#include "colorbutton.h"
#include "previewframe.h"
#include "paletteeditoradvanced.h"

#include <qlabel.h>
#include <qapplication.h>
#include <qcombobox.h>
#include <qstylefactory.h>
#include <qinputcontextfactory.h>
#include <qobjectlist.h>
#include <qfontdatabase.h>
#include <qlineedit.h>
#include <qlistbox.h>
#include <qspinbox.h>
#include <qcheckbox.h>
#include <qfiledialog.h>
#include <qaction.h>
#include <qstatusbar.h>
#include <qsettings.h>
#include <qmessagebox.h>
#include <qtextview.h>
#include <qstyle.h>

#include <stdlib.h>


// from qapplication.cpp and qapplication_x11.cpp - These are NOT for
// external use ignore them
extern bool Q_EXPORT qt_resolve_symlinks;


static const char *appearance_text =
"<p><b><font size+=2>Appearance</font></b></p>"
"<hr>"
"<p>Use this tab to customize the appearance of your Qt applications.</p>"
"<p>You can select the default GUI Style from the drop down list and "
"customize the colors.</p>"
"<p>Any GUI Style plugins in your plugin path will automatically be added "
"to the list of built-in Qt styles. (See the Library Paths tab for "
"information on adding new plugin paths.)</p>"
"<p>When you choose 3-D Effects and Background colors, the Qt Configuration "
"program will automatically generate a palette for you.  To customize "
"colors further, press the Tune Palette button to open the advanced "
"palette editor."
"<p>The Preview Window shows what the selected Style and colors look "
"like.";

static const char *font_text =
"<p><b><font size+=2>Fonts</font></b></p>"
"<hr>"
"<p>Use this tab to select the default font for your Qt applications. "
"The selected font is shown (initially as 'Sample Text') in the line "
"edit below the Family, "
"Style and Point Size drop down lists.</p>"
"<p>Qt has a powerful font substitution feature that allows you to "
"specify a list of substitute fonts.  Substitute fonts are used "
"when a font cannot be loaded, or if the specified font doesn't have "
"a particular character."
"<p>For example, if you select the font Lucida, which doesn't have Korean "
"characters, but need to show some Korean text using the Mincho font family "
"you can do so by adding Mincho to the list. Once Mincho is added, any "
"Korean characters that are not found in the Lucida font will be taken "
"from the Mincho font.  Because the font substitutions are "
"lists, you can also select multiple families, such as Song Ti (for "
"use with Chinese text).";

static const char *interface_text =
"<p><b><font size+=2>Interface</font></b></p>"
"<hr>"
"<p>Use this tab to customize the feel of your Qt applications.</p>"
"<p>If the Resolve Symlinks checkbox is checked Qt will follow symlinks "
"when handling URLs. For example, in the file dialog, if this setting is turned "
"on and /usr/tmp is a symlink to /var/tmp, entering the /usr/tmp directory "
"will cause the file dialog to change to /var/tmp.  With this setting turned "
"off, symlinks are not resolved or followed.</p>"
"<p>The Global Strut setting is useful for people who require a "
"minimum size for all widgets (e.g. when using a touch panel or for users "
"who are visually impaired).  Leaving the Global Strut width and height "
"at 0 will disable the Global Strut feature</p>"
"<p>XIM (Extended Input Methods) are used for entering characters in "
"languages that have large character sets, for example, Chinese and "
"Japanese.";
// ### What does the 'Enhanced support for languages written R2L do?

static const char *libpath_text =
"<p><b><font size+=2>Library Paths</font></b></p>"
"<hr>"
"<p>Use this tab to select additional directories where Qt should search "
"for component plugins."
"<p>These directories should be the base directory of where your plugins "
"are stored.  For example, if you wish to store GUI Style plugins in "
"$HOME/plugins/styles and Qt Designer plugins in $HOME/plugins/designer, "
"you would add $HOME/plugins to your Library Path. <p>Notes:"
"<ul><li>The Qt Configuration program does <i>not</i> support environment "
"variables, so you must give full path names, for example "
"<tt>/home/brad/myplugins</tt> not <tt>$HOME/myplugins</tt>"
"<li> Qt automatically "
"searches in the directory where you installed Qt for component plugins. "
"Removing that path is not possible.</ul>";

static const char *printer_text =
"<p><b><font size+=2>Printer</font></b></p>"
"<hr>"
"<p>Use this tab to configure the way Qt generates output for the printer."
"You can specify if Qt should try to embed fonts into its generated output."
"If you enable font embedding, the resulting postscript will be more "
"portable and will more accurately reflect the "
"visual output on the screen; however the resulting postscript file "
"size will be bigger."
"<p>When using font embedding you can select additional directories where "
"Qt should search for embeddable font files.  By default, the X "
"server font path is used.";

static const char *about_text =
"<p><b><font size=+2>Qt Configuration</font></b></p>"
"<p>A graphical configuration tool for programs using Qt</p>"
"<p>Version 1.0</p>"
"<p>Copyright (C) 2001-2008 Trolltech ASA. All rights reserved.</p>"
"<p></p>"
"<p>This program is licensed to you under the terms of the GNU General "
"Public License Version 2 as published by the Free Software Foundation. This "
"gives you legal permission to copy, distribute and/or modify this software "
"under certain conditions. For details, see the file 'LICENSE.GPL' that came with "
"this software distribution. If you did not get the file, send email to "
"info@trolltech.com.</p>\n\n<p>The program is provided AS IS with NO WARRANTY "
"OF ANY KIND, INCLUDING THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS "
"FOR A PARTICULAR PURPOSE.</p>";


static QColorGroup::ColorRole centralFromItem( int item )
{
    switch( item ) {
    case 0:  return QColorGroup::Background;
    case 1:  return QColorGroup::Foreground;
    case 2:  return QColorGroup::Button;
    case 3:  return QColorGroup::Base;
    case 4:  return QColorGroup::Text;
    case 5:  return QColorGroup::BrightText;
    case 6:  return QColorGroup::ButtonText;
    case 7:  return QColorGroup::Highlight;
    case 8:  return QColorGroup::HighlightedText;
    default: return QColorGroup::NColorRoles;
    }
}


static QColorGroup::ColorRole effectFromItem( int item )
{
    switch( item ) {
    case 0:  return QColorGroup::Light;
    case 1:  return QColorGroup::Midlight;
    case 2:  return QColorGroup::Mid;
    case 3:  return QColorGroup::Dark;
    case 4:  return QColorGroup::Shadow;
    default: return QColorGroup::NColorRoles;
    }
}


static void setStyleHelper(QWidget *w, QStyle *s)
{
    w->unsetPalette();
    w->setStyle(s);

    const QObjectList *children = w->children();
    if (! children)
	return;

    QPtrListIterator<QObject> childit(*children);
    QObject *child;
    while ((child = childit.current()) != 0) {
	++childit;

	if (child->isWidgetType())
	    setStyleHelper((QWidget *) child, s);
    }
}


MainWindow::MainWindow()
    : MainWindowBase(0, "main window"),
      editPalette(palette()), previewPalette(palette()), previewstyle(0)
{
    modified = TRUE;

    QStringList gstyles = QStyleFactory::keys();
    gstyles.sort();
    gstylecombo->insertStringList(gstyles);

    QSettings settings;
    QString currentstyle = settings.readEntry("/qt/style");
    if (currentstyle.isNull())
	currentstyle = QApplication::style().className();
    {
	int s = 0;
	QStringList::Iterator git = gstyles.begin();
	while (git != gstyles.end()) {
	    if (*git == currentstyle)
		break;
	    s++;
	    git++;
	}

	if (s < gstylecombo->count()) {
	    gstylecombo->setCurrentItem(s);
	} else {
	    // no predefined style, try to find the closest match
	    // class names usually contain the name of the style, so we
	    // iterate over the items in the combobox, and use the one whose
	    // name is contained in the classname of the style
	    s = 0;
	    git = gstyles.begin();
	    while (git != gstyles.end()) {
		if (currentstyle.contains(*git))
		    break;
		s++;
		git++;
	    }

	    if (s < gstylecombo->count()) {
		gstylecombo->setCurrentItem(s);
	    } else {
		// we give up
		gstylecombo->insertItem("Unknown");
		gstylecombo->setCurrentItem(gstylecombo->count() - 1);
	    }
	}
    }

    buttonMainColor->setColor(palette().color(QPalette::Active,
					      QColorGroup::Button));
    buttonMainColor2->setColor(palette().color(QPalette::Active,
					       QColorGroup::Background));

    QFontDatabase db;
    QStringList families = db.families();
    familycombo->insertStringList(families);

    QStringList fs = families;
    QStringList fs2 = QFont::substitutions();
    QStringList::Iterator fsit = fs2.begin();
    while (fsit != fs2.end()) {
	if (! fs.contains(*fsit))
	    fs += *fsit;
	fsit++;
    }
    fs.sort();
    familysubcombo->insertStringList(fs);

    choosesubcombo->insertStringList(families);
    QValueList<int> sizes = db.standardSizes();
    QValueList<int>::Iterator it = sizes.begin();
    while (it != sizes.end())
	psizecombo->insertItem(QString::number(*it++));

    dcispin->setValue(QApplication::doubleClickInterval());
    cfispin->setValue(QApplication::cursorFlashTime());
    wslspin->setValue(QApplication::wheelScrollLines());
    resolvelinks->setChecked(qt_resolve_symlinks);

    effectcheckbox->setChecked(QApplication::isEffectEnabled(UI_General));
    effectbase->setEnabled(effectcheckbox->isChecked());

    if (QApplication::isEffectEnabled(UI_FadeMenu))
	menueffect->setCurrentItem(2);
    else if (QApplication::isEffectEnabled(UI_AnimateMenu))
	menueffect->setCurrentItem(1);

    if (QApplication::isEffectEnabled(UI_AnimateCombo))
	comboeffect->setCurrentItem(1);

    if (QApplication::isEffectEnabled(UI_FadeTooltip))
	tooltipeffect->setCurrentItem(2);
    else if (QApplication::isEffectEnabled(UI_AnimateTooltip))
	tooltipeffect->setCurrentItem(1);

    if ( QApplication::isEffectEnabled( UI_AnimateToolBox ) )
	toolboxeffect->setCurrentItem( 1 );

    QSize globalStrut = QApplication::globalStrut();
    strutwidth->setValue(globalStrut.width());
    strutheight->setValue(globalStrut.height());

    libpathlistbox->clear();
    libpathlistbox->insertStringList(QApplication::libraryPaths());

    // find the default family
    QStringList::Iterator sit = families.begin();
    int i = 0, possible = -1;
    while (sit != families.end()) {
	if (*sit == QApplication::font().family())
	    break;
	if ((*sit).contains(QApplication::font().family()))
	    possible = i;

	i++;
	sit++;
    }
    if (sit == families.end())
	i = possible;
    if (i == -1) // no clue about the current font
	i = 0;

    familycombo->setCurrentItem(i);

    QStringList styles = db.styles(familycombo->currentText());
    stylecombo->insertStringList(styles);

    QString stylestring = db.styleString(QApplication::font());
    sit = styles.begin();
    i = 0;
    possible = -1;
    while (sit != styles.end()) {
	if (*sit == stylestring)
	    break;
	if ((*sit).contains(stylestring))
	    possible = i;

	i++;
	sit++;
    }
    if (sit == styles.end())
	i = possible;
    if (i == -1) // no clue about the current font
	i = 0;
    stylecombo->setCurrentItem(i);

    i = 0;
    while (i < psizecombo->count()) {
	if (psizecombo->text(i) == QString::number(QApplication::font().pointSize())) {
	    psizecombo->setCurrentItem(i);
	    break;
	}

	i++;
    }

    QStringList subs = QFont::substitutes(familysubcombo->currentText());
    sublistbox->clear();
    sublistbox->insertStringList(subs);

    rtlExtensions->setChecked( settings.readBoolEntry( "/qt/useRtlExtensions", FALSE ) );

#if defined(Q_WS_X11)
    inputStyle->setCurrentText( settings.readEntry( "/qt/XIMInputStyle", trUtf8( "On The Spot" ) ) );
#else
    inputStyle->hide();
    inputStyleLabel->hide();
#endif

#if defined(Q_WS_X11) && !defined(QT_NO_IM_EXTENSIONS)
    /*
        This code makes it possible to set up default input method.

	The list of identifier names of input method which can be used
	is acquired using QInputContextFactory::keys(). And it is
	translated to display name and set to inputMethodCombo which
	displays the list of input method.
     */
    inputMethodIdentifiers = QInputContextFactory::keys();
    QStringList imDispNames;
    {
	// input method switcher should named with "imsw-" prefix to
	// prevent to be listed in ordinary input method list.
	QStringList::Iterator imIt = inputMethodIdentifiers.begin();
	while (imIt != inputMethodIdentifiers.end()) {
	    if ((*imIt).find("imsw-") == 0)
		imIt = inputMethodIdentifiers.remove(imIt);
	    else
		imIt++;
	}
	// we should not sort the list
	//inputMethodIdentifiers.sort();
	for (imIt = inputMethodIdentifiers.begin();
	     imIt != inputMethodIdentifiers.end();
	     imIt++) {
	    QString dispName = QInputContextFactory::displayName(*imIt);
	    if (dispName.isNull() || dispName.isEmpty())
		dispName = *imIt;
	    imDispNames << dispName;
	}
    }
    //inputMethodCombo->insertStringList(inputMethodIdentifiers);
    inputMethodCombo->insertStringList(imDispNames);

    /*
        input method set up as a default in the past is chosen.
	If nothing is set up, default input method in the platform is chosen. 
     */
    // default input method is XIM in X11.
    QString currentIM = settings.readEntry("/qt/DefaultInputMethod", "xim");
    {
	int index = inputMethodIdentifiers.findIndex(currentIM);
	// set up Selected input method.
	if (0 <= index && index < inputMethodIdentifiers.count()) {
	    inputMethodCombo->setCurrentItem(index);
	} else {
	    // Give up. this part is executed when specified IM is not
	    // installed.
	    QString dispName = tr("Unknown Input Method") + " (" + currentIM + ")";
	    inputMethodCombo->insertItem(dispName);
	    inputMethodCombo->setCurrentItem(inputMethodCombo->count() - 1);
	    inputMethodIdentifiers << currentIM;
	}
    }
#else
    inputMethodCombo->hide();
    inputMethodLabel->hide();
#endif

    fontembeddingcheckbox->setChecked( settings.readBoolEntry("/qt/embedFonts", TRUE) );
    fontpaths = settings.readListEntry("/qt/fontPath", ':');
    fontpathlistbox->insertStringList(fontpaths);

    setModified(FALSE);
}


MainWindow::~MainWindow()
{
}


void MainWindow::fileSave()
{
    if (! modified) {
	statusBar()->message("No changes to be saved.", 2000);
	return;
    }

    statusBar()->message("Saving changes...");

    {
	QSettings settings;
	QFontDatabase db;
	QFont font = db.font(familycombo->currentText(),
			     stylecombo->currentText(),
			     psizecombo->currentText().toInt());
	QStringList actcg, inactcg, discg;

	int i;
	for (i = 0; i < QColorGroup::NColorRoles; i++)
	    actcg << editPalette.color(QPalette::Active,
				       (QColorGroup::ColorRole) i).name();
	for (i = 0; i < QColorGroup::NColorRoles; i++)
	    inactcg << editPalette.color(QPalette::Inactive,
					 (QColorGroup::ColorRole) i).name();
	for (i = 0; i < QColorGroup::NColorRoles; i++)
	    discg << editPalette.color(QPalette::Disabled,
				       (QColorGroup::ColorRole) i).name();

	settings.writeEntry("/qt/font", font.toString());
	settings.writeEntry("/qt/Palette/active", actcg);
	settings.writeEntry("/qt/Palette/inactive", inactcg);
	settings.writeEntry("/qt/Palette/disabled", discg);

	QStringList libpath = QApplication::libraryPaths();
	QString libpathkey =
	    QString("/qt/%1.%2/libraryPath").arg( QT_VERSION >> 16 ).arg( (QT_VERSION & 0xff00 ) >> 8 );
	settings.writeEntry(libpathkey, libpath, ':');
	settings.writeEntry("/qt/fontPath", fontpaths, ':');
	settings.writeEntry("/qt/embedFonts", fontembeddingcheckbox->isChecked() );
	settings.writeEntry("/qt/style", gstylecombo->currentText());
	settings.writeEntry("/qt/doubleClickInterval",
					     dcispin->value());
	settings.writeEntry("/qt/cursorFlashTime", cfispin->value() == 9 ? 0 : cfispin->value() );
	settings.writeEntry("/qt/wheelScrollLines", wslspin->value());
	settings.writeEntry("/qt/resolveSymlinks", resolvelinks->isChecked());

	QStringList strut;
	strut << QString::number(strutwidth->value());
	strut << QString::number(strutheight->value());
	settings.writeEntry("/qt/globalStrut", strut);

	settings.writeEntry("/qt/useRtlExtensions", rtlExtensions->isChecked() );

#ifdef Q_WS_X11
	QString style = inputStyle->currentText();
	QString str = "On The Spot";
	if ( style == trUtf8( "Over The Spot" ) )
	    str = "Over The Spot";
	else if ( style == trUtf8( "Off The Spot" ) )
	    str = "Off The Spot";
	else if ( style == trUtf8( "Root" ) )
	    str = "Root";
        settings.writeEntry( "/qt/XIMInputStyle", inputStyle->currentText() );

#if !defined(QT_NO_IM_EXTENSIONS)
	QString imSwitcher = settings.readEntry("/qt/DefaultInputMethodSwitcher", "imsw-multi");
	settings.writeEntry("/qt/DefaultInputMethodSwitcher", imSwitcher);
	int imIndex = inputMethodCombo->currentItem();
	settings.writeEntry("/qt/DefaultInputMethod", inputMethodIdentifiers[imIndex]);
#endif
#endif

	QStringList effects;
	if (effectcheckbox->isChecked()) {
	    effects << "general";

	    switch (menueffect->currentItem()) {
	    case 1: effects << "animatemenu"; break;
	    case 2: effects << "fademenu"; break;
	    }

	    switch (comboeffect->currentItem()) {
	    case 1: effects << "animatecombo"; break;
	    }

	    switch (tooltipeffect->currentItem()) {
	    case 1: effects << "animatetooltip"; break;
	    case 2: effects << "fadetooltip"; break;
	    }

	    switch ( toolboxeffect->currentItem() ) {
	    case 1: effects << "animatetoolbox"; break;
	    }
	} else
	    effects << "none";
	settings.writeEntry("/qt/GUIEffects", effects);

	QStringList familysubs = QFont::substitutions();
	QStringList::Iterator fit = familysubs.begin();
	while (fit != familysubs.end()) {
	    QStringList subs = QFont::substitutes(*fit);
	    settings.writeEntry("/qt/Font Substitutions/" + *fit, subs);
	    fit++;
	}
    }

#if defined(Q_WS_X11)
    QApplication::x11_apply_settings();
#endif // Q_WS_X11

    setModified(FALSE);
    statusBar()->message("Saved changes.");
}


void MainWindow::fileExit()
{
    qApp->closeAllWindows();
}


void MainWindow::setModified(bool m)
{
    if (modified == m)
	return;

    modified = m;
    fileSaveAction->setEnabled(m);
}


void MainWindow::buildPalette()
{
    int i;
    QColorGroup cg;
    QColor btn = buttonMainColor->color();
    QColor back = buttonMainColor2->color();
    QPalette automake( btn, back );

    for (i = 0; i<9; i++)
	cg.setColor( centralFromItem(i), automake.active().color( centralFromItem(i) ) );

    editPalette.setActive( cg );
    buildActiveEffect();

    cg = editPalette.inactive();

    QPalette temp( editPalette.active().color( QColorGroup::Button ),
		   editPalette.active().color( QColorGroup::Background ) );

    for (i = 0; i<9; i++)
	cg.setColor( centralFromItem(i), temp.inactive().color( centralFromItem(i) ) );

    editPalette.setInactive( cg );
    buildInactiveEffect();

    cg = editPalette.disabled();

    for (i = 0; i<9; i++)
	cg.setColor( centralFromItem(i), temp.disabled().color( centralFromItem(i) ) );

    editPalette.setDisabled( cg );
    buildDisabledEffect();

    updateColorButtons();

    setModified(TRUE);
}


void MainWindow::buildActiveEffect()
{
    QColorGroup cg = editPalette.active();
    QColor btn = cg.color( QColorGroup::Button );

    QPalette temp( btn, btn );

    for (int i = 0; i<5; i++)
	cg.setColor( effectFromItem(i), temp.active().color( effectFromItem(i) ) );

    editPalette.setActive( cg );
    setPreviewPalette( editPalette );

    updateColorButtons();
}


void MainWindow::buildInactive()
{
    editPalette.setInactive( editPalette.active() );
    buildInactiveEffect();
}


void MainWindow::buildInactiveEffect()
{
    QColorGroup cg = editPalette.inactive();

    QColor light, midlight, mid, dark, shadow;
    QColor btn = cg.color( QColorGroup::Button );

    light = btn.light(150);
    midlight = btn.light(115);
    mid = btn.dark(150);
    dark = btn.dark();
    shadow = black;

    cg.setColor( QColorGroup::Light, light );
    cg.setColor( QColorGroup::Midlight, midlight );
    cg.setColor( QColorGroup::Mid, mid );
    cg.setColor( QColorGroup::Dark, dark );
    cg.setColor( QColorGroup::Shadow, shadow );

    editPalette.setInactive( cg );
    setPreviewPalette( editPalette );
    updateColorButtons();
}


void MainWindow::buildDisabled()
{
    QColorGroup cg = editPalette.active();
    cg.setColor( QColorGroup::ButtonText, darkGray );
    cg.setColor( QColorGroup::Foreground, darkGray );
    cg.setColor( QColorGroup::Text, darkGray );
    cg.setColor( QColorGroup::HighlightedText, darkGray );
    editPalette.setDisabled( cg );

    buildDisabledEffect();
}


void MainWindow::buildDisabledEffect()
{
    QColorGroup cg = editPalette.disabled();

    QColor light, midlight, mid, dark, shadow;
    QColor btn = cg.color( QColorGroup::Button );

    light = btn.light(150);
    midlight = btn.light(115);
    mid = btn.dark(150);
    dark = btn.dark();
    shadow = black;

    cg.setColor( QColorGroup::Light, light );
    cg.setColor( QColorGroup::Midlight, midlight );
    cg.setColor( QColorGroup::Mid, mid );
    cg.setColor( QColorGroup::Dark, dark );
    cg.setColor( QColorGroup::Shadow, shadow );

    editPalette.setDisabled( cg );
    setPreviewPalette( editPalette );
    updateColorButtons();
}


void MainWindow::setPreviewPalette( const QPalette& pal )
{
    QColorGroup cg;

    switch (paletteCombo->currentItem()) {
    case 0:
    default:
	cg = pal.active();
	break;
    case 1:
	cg = pal.inactive();
	break;
    case 2:
	cg = pal.disabled();
	break;
    }
    previewPalette.setActive( cg );
    previewPalette.setInactive( cg );
    previewPalette.setDisabled( cg );

    previewFrame->setPreviewPalette(previewPalette);
}


void MainWindow::updateColorButtons()
{
    buttonMainColor->setColor( editPalette.active().color( QColorGroup::Button ));
    buttonMainColor2->setColor( editPalette.active().color( QColorGroup::Background ));
}


void MainWindow::tunePalette()
{
    bool ok;
    QPalette pal = PaletteEditorAdvanced::getPalette(&ok, editPalette,
						     backgroundMode(), this);
    if (! ok)
	return;

    editPalette = pal;
    setPreviewPalette(editPalette);
    setModified(TRUE);
}


void MainWindow::paletteSelected(int)
{
    setPreviewPalette(editPalette);
}


void MainWindow::styleSelected(const QString &stylename)
{
    QStyle *style = QStyleFactory::create(stylename);
    if (! style)
	return;

    setStyleHelper(previewFrame, style);
    delete previewstyle;
    previewstyle = style;

    setModified(TRUE);
}


void MainWindow::familySelected(const QString &family)
{
    QFontDatabase db;
    QStringList styles = db.styles(family);
    stylecombo->clear();
    stylecombo->insertStringList(styles);
    familysubcombo->insertItem(family);
    buildFont();
}


void MainWindow::buildFont()
{
    QFontDatabase db;
    QFont font = db.font(familycombo->currentText(),
			 stylecombo->currentText(),
			 psizecombo->currentText().toInt());
    samplelineedit->setFont(font);
    setModified(TRUE);
}


void MainWindow::substituteSelected(const QString &family)
{
    QStringList subs = QFont::substitutes(family);
    sublistbox->clear();
    sublistbox->insertStringList(subs);
}


void MainWindow::removeSubstitute()
{
    if (sublistbox->currentItem() < 0 ||
	uint(sublistbox->currentItem()) > sublistbox->count())
	return;

    int item = sublistbox->currentItem();
    QStringList subs = QFont::substitutes(familysubcombo->currentText());
    subs.remove(subs.at(sublistbox->currentItem()));
    sublistbox->clear();
    sublistbox->insertStringList(subs);
    if (uint(item) > sublistbox->count())
	item = int(sublistbox->count()) - 1;
    sublistbox->setCurrentItem(item);
    QFont::removeSubstitution(familysubcombo->currentText());
    QFont::insertSubstitutions(familysubcombo->currentText(), subs);
    setModified(TRUE);
}


void MainWindow::addSubstitute()
{
    if (sublistbox->currentItem() < 0 ||
	uint(sublistbox->currentItem()) > sublistbox->count()) {
	QFont::insertSubstitution(familysubcombo->currentText(), choosesubcombo->currentText());
        QStringList subs = QFont::substitutes(familysubcombo->currentText());
	sublistbox->clear();
	sublistbox->insertStringList(subs);
	setModified(TRUE);
	return;
    }

    int item = sublistbox->currentItem();
    QFont::insertSubstitution(familysubcombo->currentText(), choosesubcombo->currentText());
    QStringList subs = QFont::substitutes(familysubcombo->currentText());
    sublistbox->clear();
    sublistbox->insertStringList(subs);
    sublistbox->setCurrentItem(item);
    setModified(TRUE);
}


void MainWindow::downSubstitute()
{
    if (sublistbox->currentItem() < 0 ||
	uint(sublistbox->currentItem()) >= sublistbox->count())
	return;

    int item = sublistbox->currentItem();
    QStringList subs = QFont::substitutes(familysubcombo->currentText());
    QStringList::Iterator it = subs.at(item);
    QString fam = *it;
    subs.remove(it);
    it = subs.at(item);
    subs.insert(++it, fam);
    sublistbox->clear();
    sublistbox->insertStringList(subs);
    sublistbox->setCurrentItem(item + 1);
    QFont::removeSubstitution(familysubcombo->currentText());
    QFont::insertSubstitutions(familysubcombo->currentText(), subs);
    setModified(TRUE);
}


void MainWindow::upSubstitute()
{
    if (sublistbox->currentItem() < 1)
	return;

    int item = sublistbox->currentItem();
    QStringList subs = QFont::substitutes(familysubcombo->currentText());
    QStringList::Iterator it = subs.at(item);
    QString fam = *it;
    subs.remove(it);
    it = subs.at(item - 1);
    subs.insert(it, fam);
    sublistbox->clear();
    sublistbox->insertStringList(subs);
    sublistbox->setCurrentItem(item - 1);
    QFont::removeSubstitution(familysubcombo->currentText());
    QFont::insertSubstitutions(familysubcombo->currentText(), subs);
    setModified(TRUE);
}


void MainWindow::removeLibpath()
{
    if (libpathlistbox->currentItem() < 0 ||
	uint(libpathlistbox->currentItem()) > libpathlistbox->count())
	return;

    int item = libpathlistbox->currentItem();
    QStringList paths = QApplication::libraryPaths();
    paths.remove(paths.at(libpathlistbox->currentItem()));
    libpathlistbox->clear();
    libpathlistbox->insertStringList(paths);
    if (uint(item) > libpathlistbox->count())
	item = int(libpathlistbox->count()) - 1;
    libpathlistbox->setCurrentItem(item);
    QApplication::setLibraryPaths(paths);
    setModified(TRUE);
}


void MainWindow::addLibpath()
{
    if (libpathlineedit->text().isEmpty())
	return;

    if (libpathlistbox->currentItem() < 0 ||
	uint(libpathlistbox->currentItem()) > libpathlistbox->count()) {
	QStringList paths = QApplication::libraryPaths();
	paths.append(libpathlineedit->text());
	libpathlistbox->clear();
	libpathlistbox->insertStringList(paths);
	QApplication::setLibraryPaths(paths);
	setModified(TRUE);

	return;
    }

    int item = libpathlistbox->currentItem();
    QStringList paths =QApplication::libraryPaths();
    paths.insert(++paths.at(libpathlistbox->currentItem()),
		 libpathlineedit->text());
    libpathlistbox->clear();
    libpathlistbox->insertStringList(paths);
    libpathlistbox->setCurrentItem(item);
    QApplication::setLibraryPaths(paths);
    setModified(TRUE);
}


void MainWindow::downLibpath()
{
    if (libpathlistbox->currentItem() < 0 ||
	uint(libpathlistbox->currentItem()) >= libpathlistbox->count() - 1)
	return;

    int item = libpathlistbox->currentItem();
    QStringList paths = QApplication::libraryPaths();
    QStringList::Iterator it = paths.at(item);
    QString fam = *it;
    paths.remove(it);
    it = paths.at(item);
    paths.insert(++it, fam);
    libpathlistbox->clear();
    libpathlistbox->insertStringList(paths);
    libpathlistbox->setCurrentItem(item + 1);
    QApplication::setLibraryPaths(paths);
    setModified(TRUE);
}


void MainWindow::upLibpath()
{
    if (libpathlistbox->currentItem() < 1)
	return;

    int item = libpathlistbox->currentItem();
    QStringList paths = QApplication::libraryPaths();
    QStringList::Iterator it = paths.at(item);
    QString fam = *it;
    paths.remove(it);
    it = paths.at(item - 1);
    paths.insert(it, fam);
    libpathlistbox->clear();
    libpathlistbox->insertStringList(paths);
    libpathlistbox->setCurrentItem(item - 1);
    QApplication::setLibraryPaths(paths);
    setModified(TRUE);
}


void MainWindow::browseLibpath()
{
    QString dirname = QFileDialog::getExistingDirectory(QString::null, this, 0,
							tr("Select a Directory"));
    if (dirname.isNull())
	return;

    libpathlineedit->setText(dirname);
}


void MainWindow::removeFontpath()
{
    if (fontpathlistbox->currentItem() < 0 ||
	uint(fontpathlistbox->currentItem()) > fontpathlistbox->count())
	return;

    int item = fontpathlistbox->currentItem();
    fontpaths.remove(fontpaths.at(fontpathlistbox->currentItem()));
    fontpathlistbox->clear();
    fontpathlistbox->insertStringList(fontpaths);
    if (uint(item) > fontpathlistbox->count())
	item = int(fontpathlistbox->count()) - 1;
    fontpathlistbox->setCurrentItem(item);
    setModified(TRUE);
}


void MainWindow::addFontpath()
{
    if (fontpathlineedit->text().isEmpty())
	return;

    if (fontpathlistbox->currentItem() < 0 ||
	uint(fontpathlistbox->currentItem()) > fontpathlistbox->count()) {
	fontpaths.append(fontpathlineedit->text());
	fontpathlistbox->clear();
	fontpathlistbox->insertStringList(fontpaths);
	setModified(TRUE);

	return;
    }

    int item = fontpathlistbox->currentItem();
    fontpaths.insert(++fontpaths.at(fontpathlistbox->currentItem()),
		     fontpathlineedit->text());
    fontpathlistbox->clear();
    fontpathlistbox->insertStringList(fontpaths);
    fontpathlistbox->setCurrentItem(item);
    setModified(TRUE);
}


void MainWindow::downFontpath()
{
    if (fontpathlistbox->currentItem() < 0 ||
	uint(fontpathlistbox->currentItem()) >= fontpathlistbox->count() - 1)
	return;

    int item = fontpathlistbox->currentItem();
    QStringList::Iterator it = fontpaths.at(item);
    QString fam = *it;
    fontpaths.remove(it);
    it = fontpaths.at(item);
    fontpaths.insert(++it, fam);
    fontpathlistbox->clear();
    fontpathlistbox->insertStringList(fontpaths);
    fontpathlistbox->setCurrentItem(item + 1);
    setModified(TRUE);
}


void MainWindow::upFontpath()
{
    if (fontpathlistbox->currentItem() < 1)
	return;

    int item = fontpathlistbox->currentItem();
    QStringList::Iterator it = fontpaths.at(item);
    QString fam = *it;
    fontpaths.remove(it);
    it = fontpaths.at(item - 1);
    fontpaths.insert(it, fam);
    fontpathlistbox->clear();
    fontpathlistbox->insertStringList(fontpaths);
    fontpathlistbox->setCurrentItem(item - 1);
    setModified(TRUE);
}


void MainWindow::browseFontpath()
{
    QString dirname = QFileDialog::getExistingDirectory(QString::null, this, 0,
							tr("Select a Directory"));
    if (dirname.isNull())
	return;

   fontpathlineedit->setText(dirname);
}


void MainWindow::somethingModified()
{
    setModified(TRUE);
}


void MainWindow::helpAbout()
{
    QMessageBox::about(this, tr("Qt Configuration"),
		       tr(about_text));
}


void MainWindow::helpAboutQt()
{
    QMessageBox::aboutQt(this, tr("Qt Configuration"));
}


void MainWindow::pageChanged(QWidget *page)
{
    if (page == tab)
	helpview->setText(tr(appearance_text));
    else if (page == tab_2)
	helpview->setText(tr(font_text));
    else if (page == tab_3)
	helpview->setText(tr(interface_text));
    else if (page == tab_4)
	helpview->setText(tr(libpath_text));
    else if (page == tab_5)
	helpview->setText(tr(printer_text));
}


void MainWindow::closeEvent(QCloseEvent *e)
{
    if (modified) {
	switch(QMessageBox::warning(this, tr("Save Changes"),
				    tr("Save changes to settings?"),
				    tr("&Yes"), tr("&No"), tr("&Cancel"), 0, 2)) {
	case 0: // save
	    qApp->processEvents();
	    fileSave();

	    // fall through intended
	case 1: // don't save
	    e->accept();
	    break;

	case 2: // cancel
	    e->ignore();
	    break;

	default: break;
	}
    } else
	e->accept();
}