File: PreferencesWin.cpp

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/** Copyright (C) 2010, J.M.Reneau
 **
 **  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.,
 **  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 **/

#include <iostream>



#include "PreferencesWin.h"
#include "Settings.h"
#include "MainWindow.h"
#include "md5.h"

#ifdef ESPEAK
	#include <speak_lib.h>
#endif

PreferencesWin::PreferencesWin (QWidget * parent, bool showAdvanced)
	:QDialog(parent) {

	settingsbrowser = NULL;

	int r=0, i;
	SETTINGS;

	// *******************************************************************************************
	// build the advanced tab
	if (showAdvanced) {
		advancedtablayout = new QGridLayout(this);
		advancedtabwidget = new QWidget(this);
		advancedtabwidget->setLayout(advancedtablayout);
		r=0;
		//
		passwordlabel = new QLabel(tr("Advanced Preferences Password:"),this);
		passwordinput = new QLineEdit(QString(),this);
		passwordinput->setText(settings.value(SETTINGSPREFPASSWORD, "").toString());
		passwordinput->setMaxLength(32);
		passwordinput->setEchoMode(QLineEdit::Password);
		advancedtablayout->addWidget(passwordlabel,r,1,1,1);
		advancedtablayout->addWidget(passwordinput,r,2,1,2);
		//
		r++;
		allowsystemlabel = new QLabel(tr("Allow SYSTEM statement:"), this);
		advancedtablayout->addWidget(allowsystemlabel,r,1,1,1);
		allowsystemcombo = new QComboBox(this);
		//allowsystemcombo->addItem(tr("Ignore"), -1);
		allowsystemcombo->addItem(tr("Do not allow"), 0);
		allowsystemcombo->addItem(tr("Ask confirmation from user"), 1);
		allowsystemcombo->addItem(tr("Allow"), 2);
		int s = settings.value(SETTINGSALLOWSYSTEM, SETTINGSALLOWSYSTEMDEFAULT).toInt();
		int system = allowsystemcombo->findData(s);
		if (system != -1) allowsystemcombo->setCurrentIndex(system);
		advancedtablayout->addWidget(allowsystemcombo,r,2,1,2);
		//
#ifdef WIN32
#ifndef WIN32PORTABLE
		r++;
		allowportlabel = new QLabel(tr("Allow PORTIN/PORTOUT statements:"), this);
		advancedtablayout->addWidget(allowportlabel,r,1,1,1);
		allowportcombo = new QComboBox(this);
		//allowportcombo->addItem(tr("Ignore"), -1);
		allowportcombo->addItem(tr("Do not allow"), 0);
		allowportcombo->addItem(tr("Ask confirmation from user"), 1);
		allowportcombo->addItem(tr("Allow"), 2);
		int p = settings.value(SETTINGSALLOWPORT, SETTINGSALLOWPORTDEFAULT).toInt();
		int port = allowportcombo->findData(p);
		if (port != -1) allowportcombo->setCurrentIndex(port);
		advancedtablayout->addWidget(allowportcombo,r,2,1,2);
#endif
#endif
		//
		/*
		r++;
		QFrame *separator = new QFrame;
		separator->setFrameShape(QFrame::HLine);
		separator->setFrameShadow(QFrame::Sunken);
		advancedtablayout->addWidget(separator,r,1,1,3);
		*/
		//
		r++;
		settingsaccesslabel = new QLabel(tr("GETSETTING/SETSETTING access level:"), this);
		advancedtablayout->addWidget(settingsaccesslabel,r,1,1,1);
		settingsaccesscombo = new QComboBox(this);
		settingsaccesscombo->addItem(tr("Get / set only owned settings"), 0);
		settingsaccesscombo->addItem(tr("Get any settings / set only owned settings"), 1);
		settingsaccesscombo->addItem(tr("Full access (get/set) to settings"), 2);
		int l = settings.value(SETTINGSSETTINGSACCESS, SETTINGSSETTINGSACCESSDEFAULT).toInt();
		int index = settingsaccesscombo->findData(l);
		if (index != -1) settingsaccesscombo->setCurrentIndex(index);
		advancedtablayout->addWidget(settingsaccesscombo,r,2,1,2);
		//
		r++;
		settingcheckbox = new QCheckBox(tr("Allow programs to use persistent settings (SETSETTING statement)"),this);
		settingcheckbox->setChecked(settings.value(SETTINGSALLOWSETTING, SETTINGSALLOWSETTINGDEFAULT).toBool());
		advancedtablayout->addWidget(settingcheckbox,r,2,1,2);
		//
		r++;
		browsesaveddata = new QPushButton(tr("Browse persistent settings"), this);
		connect(browsesaveddata, SIGNAL(clicked()), this, SLOT (clickBrowseSavedData()));
		advancedtablayout->addWidget(browsesaveddata,r,2,1,1);
		clearsaveddata = new QPushButton(tr("Clear all persistent settings"), this);
		connect(clearsaveddata, SIGNAL(clicked()), this, SLOT (clickClearSavedData()));
		advancedtablayout->addWidget(clearsaveddata,r,3,1,1);
		//
		r++;
		settingsmaxlabel = new QLabel(tr("Max number of settings for each program:"), this);
		advancedtablayout->addWidget(settingsmaxlabel,r,1,1,1);
		settingsmaxcombo = new QComboBox(this);
		settingsmaxcombo->addItem(tr("No limit"), 0);
		settingsmaxcombo->addItem(tr("50 keys"), 50);
		settingsmaxcombo->addItem(tr("100 keys"), 100);
		settingsmaxcombo->addItem(tr("200 keys"), 200);
		int m = settings.value(SETTINGSSETTINGSMAX, SETTINGSSETTINGSMAXDEFAULT).toInt();
		int max = settingsmaxcombo->findData(m);
		if (max != -1) settingsmaxcombo->setCurrentIndex(max);
		advancedtablayout->addWidget(settingsmaxcombo,r,2,1,2);

	}


	// *******************************************************************************************
	// build the user tab
	usertablayout = new QGridLayout(this);
	usertabwidget = new QWidget(this);
	usertabwidget->setLayout(usertablayout);
	r=0;
	// Startup - restore last windows position on start or check for update
	r++;
	startuplabel = new QLabel(tr("Startup"),this);
	usertablayout->addWidget(startuplabel,r,1,1,1);
	windowsrestorecheckbox = new QCheckBox(tr("Restore last windows position on start"),this);
	windowsrestorecheckbox->setChecked(settings.value(SETTINGSWINDOWSRESTORE, SETTINGSWINDOWSRESTOREDEFAULT).toBool());
	usertablayout->addWidget(windowsrestorecheckbox,r,2,1,1);
	r++;
	checkupdatecheckbox = new QCheckBox(tr("Check for an update on start"),this);
	checkupdatecheckbox->setChecked(settings.value(SETTINGSCHECKFORUPDATE, SETTINGSCHECKFORUPDATEDEFAULT).toBool());
	usertablayout->addWidget(checkupdatecheckbox,r,2,1,2);
	//
	r++;
	{
		int settypeconv;
		typeconvlabel = new QLabel(tr("Runtime handling of bad type conversions:"), this);
		usertablayout->addWidget(typeconvlabel,r,1,1,1);
		typeconvcombo = new QComboBox(this);
		typeconvcombo->addItem(tr("Ignore"), SETTINGSERRORNONE);
		typeconvcombo->addItem(tr("Warn"), SETTINGSERRORWARN);
		typeconvcombo->addItem(tr("Error"), SETTINGSERROR);
		// set setting and select
		settypeconv = settings.value(SETTINGSTYPECONV, SETTINGSTYPECONVDEFAULT).toInt();
		int index = typeconvcombo->findData(settypeconv);
		if ( index != -1 ) { // -1 for not found
			typeconvcombo->setCurrentIndex(index);
		}
		// add to layout
		usertablayout->addWidget(typeconvcombo,r,2,1,2);
	}
	//
	r++;
	{
		int setvarnotassigned;
		varnotassignedlabel = new QLabel(tr("Runtime handling of unassigned variables:"), this);
		usertablayout->addWidget(varnotassignedlabel,r,1,1,1);
		varnotassignedcombo = new QComboBox(this);
		varnotassignedcombo->addItem(tr("Ignore"), SETTINGSERRORNONE);
		varnotassignedcombo->addItem(tr("Warn"), SETTINGSERRORWARN);
		varnotassignedcombo->addItem(tr("Error"), SETTINGSERROR);
		// set setting and select
		setvarnotassigned = settings.value(SETTINGSVARNOTASSIGNED, SETTINGSVARNOTASSIGNEDDEFAULT).toInt();
		int index = varnotassignedcombo->findData(setvarnotassigned);
		if ( index != -1 ) { // -1 for not found
			varnotassignedcombo->setCurrentIndex(index);
		}
		// add to layout
		usertablayout->addWidget(varnotassignedcombo,r,2,1,2);
	}
	//
	r++;
	saveonruncheckbox = new QCheckBox(tr("Automatically save program when it is successfully run"),this);
	saveonruncheckbox->setChecked(settings.value(SETTINGSIDESAVEONRUN, SETTINGSIDESAVEONRUNDEFAULT).toBool());
	usertablayout->addWidget(saveonruncheckbox,r,2,1,2);
	//
	// decimal digits slider
	r++;
	decdigslabel = new QLabel(tr("Number of digits to print numbers:"),this);
	decdigsvalue = new QLabel("",this);
	QHBoxLayout * decdigslabellayout = new QHBoxLayout();
	decdigslabellayout->addWidget(decdigslabel);
	decdigslabellayout->addWidget(decdigsvalue);
	decdigslabellayout->addStretch();

	decdigsslider = new QSlider(Qt::Horizontal, this);
	decdigsslider->setMinimum(SETTINGSDECDIGSMIN);
	decdigsslider->setMaximum(SETTINGSDECDIGSMAX);
	decdigsslider->setSingleStep(1);
	decdigsslider->setPageStep(1);
	QLabel *decdigsbefore = new QLabel(QString::number(SETTINGSDECDIGSMIN),this);
	QLabel *decdigsafter = new QLabel(QString::number(SETTINGSDECDIGSMAX),this);
	connect(decdigsslider, SIGNAL(valueChanged(int)), this, SLOT(setDigitsValue(int)));
	QHBoxLayout * decdigssliderlayout = new QHBoxLayout();
	decdigssliderlayout->addWidget(decdigsbefore);
	decdigssliderlayout->addWidget(decdigsslider);
	decdigssliderlayout->addWidget(decdigsafter);
	usertablayout->addLayout(decdigslabellayout,r,1,1,1);
	usertablayout->addLayout(decdigssliderlayout,r,2,1,2);
	i = settings.value(SETTINGSDECDIGS, SETTINGSDECDIGSDEFAULT).toInt();
	decdigsslider->setValue(i);
	setDigitsValue(i);
	decdigsvalue->setText(decdigsvalue->text() + "        "); //ensure space for label to grow without resizing window
	// show trailing .0 on floatingpoint numbers (python style numbers)
	r++;
	floatlocalecheckbox = new QCheckBox(tr("Use localized decimal point on floating point numbers"),this);
	floatlocalecheckbox->setChecked(settings.value(SETTINGSFLOATLOCALE, SETTINGSFLOATLOCALEDEFAULT).toBool());
	usertablayout->addWidget(floatlocalecheckbox,r,2,1,2);
	r++;
	floattailcheckbox = new QCheckBox(tr("Always show decimal point on floating point numbers"),this);
	floattailcheckbox->setChecked(settings.value(SETTINGSFLOATTAIL, SETTINGSFLOATTAILDEFAULT).toBool());
	usertablayout->addWidget(floattailcheckbox,r,2,1,2);

	//
	// speed of next statement in run to breakpoint
	r++;
	debugspeedlabel = new QLabel(tr("Debugging Speed:"),this);
	debugspeedvalue = new QLabel("",this);
	QHBoxLayout * debugspeedlabellayout = new QHBoxLayout();
	debugspeedlabellayout->addWidget(debugspeedlabel);
	debugspeedlabellayout->addWidget(debugspeedvalue);
	debugspeedlabellayout->addStretch();

	debugspeedslider = new QSlider(Qt::Horizontal, this);
	debugspeedslider->setMinimum(SETTINGSDEBUGSPEEDMIN);
	debugspeedslider->setMaximum(SETTINGSDEBUGSPEEDMAX);
	QLabel *debugspeedbefore = new QLabel(tr("Fast"),this);
	QLabel *debugspeedafter = new QLabel(tr("Slow"),this);
	connect(debugspeedslider, SIGNAL(valueChanged(int)), this, SLOT(setDebugSpeedValue(int)));
	QHBoxLayout * debugspeedsliderlayout = new QHBoxLayout();
	debugspeedsliderlayout->addWidget(debugspeedbefore);
	debugspeedsliderlayout->addWidget(debugspeedslider);
	debugspeedsliderlayout->addWidget(debugspeedafter);
	usertablayout->addLayout(debugspeedlabellayout,r,1,1,1);
	usertablayout->addLayout(debugspeedsliderlayout,r,2,1,2);
	i = settings.value(SETTINGSDEBUGSPEED, SETTINGSDEBUGSPEEDDEFAULT).toInt();
	debugspeedslider->setValue(i);
	setDebugSpeedValue(i);
	debugspeedvalue->setText(debugspeedvalue->text() + "        "); //ensure space for label to grow without resizing window

	//
	// *******************************************************************************************
	// build the sound tab
	soundtablayout = new QGridLayout();
	soundtabwidget = new QWidget(this);
	soundtabwidget->setLayout(soundtablayout);
	r=0;




	// sound volume slider
	r++;
	soundvolumelabel = new QLabel(tr("Volume:"),this);
	soundvolumevalue = new QLabel("",this);
	QHBoxLayout * soundvolumelabellayout = new QHBoxLayout();
	soundvolumelabellayout->addWidget(soundvolumelabel);
	soundvolumelabellayout->addWidget(soundvolumevalue);
	soundvolumelabellayout->addStretch();
	soundvolumeslider = new QSlider(Qt::Horizontal,this);
	soundvolumeslider->setMinimum(SETTINGSSOUNDVOLUMEMIN);
	soundvolumeslider->setMaximum(SETTINGSSOUNDVOLUMEMAX);
	soundvolumeslider->setSingleStep(1);
	soundvolumeslider->setPageStep(1);
	QLabel *soundvolumebefore = new QLabel(QString::number(SETTINGSSOUNDVOLUMEMIN),this);
	QLabel *soundvolumeafter = new QLabel(QString::number(SETTINGSSOUNDVOLUMEMAX),this);
	connect(soundvolumeslider, SIGNAL(valueChanged(int)), this, SLOT(setVolumeValue(int)));
	QHBoxLayout * soundvolumesliderlayout = new QHBoxLayout();
	soundvolumesliderlayout->addWidget(soundvolumebefore);
	soundvolumesliderlayout->addWidget(soundvolumeslider);
	soundvolumesliderlayout->addWidget(soundvolumeafter);
	soundtablayout->addLayout(soundvolumelabellayout,r,1,1,1);
	soundtablayout->addLayout(soundvolumesliderlayout,r,2,1,2);
	i = settings.value(SETTINGSSOUNDVOLUME, SETTINGSSOUNDVOLUMEDEFAULT).toInt();
	soundvolumeslider->setValue(i);
	setVolumeValue(i);
	soundvolumevalue->setText(soundvolumevalue->text() + "        "); //ensure space for label to grow without resizing window



	// sample rate
	r++;
	{
		int setsoundsamplerate;
		soundsampleratelabel = new QLabel(tr("Sound sample rate:"),this);
		soundtablayout->addWidget(soundsampleratelabel,r,1,1,1);
		soundsampleratecombo = new QComboBox(this);
		soundsampleratecombo->addItem(tr("44100 Hz"), 44100);
		soundsampleratecombo->addItem(tr("32000 Hz"), 32000);
		soundsampleratecombo->addItem(tr("22050 Hz"), 22050);
		soundsampleratecombo->addItem(tr("16000 Hz"), 16000);
		soundsampleratecombo->addItem(tr("11025 Hz"), 11025);
		soundsampleratecombo->addItem(tr("8000 Hz"), 8000);
		soundsampleratecombo->addItem(tr("4400 Hz"), 4400);
		// set setting and select
		setsoundsamplerate = settings.value(SETTINGSSOUNDSAMPLERATE, SETTINGSSOUNDSAMPLERATEDEFAULT).toInt();
		int index = soundsampleratecombo->findData(setsoundsamplerate);
		if ( index != -1 ) { // -1 for not found
			soundsampleratecombo->setCurrentIndex(index);
		}
		// add to layout
		soundtablayout->addWidget(soundsampleratecombo,r,2,1,2);
	}



	// sound normalize slider
	r++;
	soundnormalizelabel = new QLabel(tr("Min. period to normalize louder sounds:"),this);
	soundnormalizevalue = new QLabel("",this);
	QHBoxLayout * soundnormalizelabellayout = new QHBoxLayout();
	soundnormalizelabellayout->addWidget(soundnormalizelabel);
	soundnormalizelabellayout->addWidget(soundnormalizevalue);
	soundnormalizelabellayout->addStretch();
	soundnormalizeslider = new QSlider(Qt::Horizontal, this);
	soundnormalizeslider->setMinimum(SETTINGSSOUNDNORMALIZEMIN/10);
	soundnormalizeslider->setMaximum(SETTINGSSOUNDNORMALIZEMAX/10);
	soundnormalizeslider->setSingleStep(1);
	soundnormalizeslider->setPageStep(10);
	QLabel *soundnormalizebefore = new QLabel(QString::number(SETTINGSSOUNDNORMALIZEMIN),this);
	QLabel *soundnormalizeafter = new QLabel(QString::number(SETTINGSSOUNDNORMALIZEMAX),this);
	connect(soundnormalizeslider, SIGNAL(valueChanged(int)), this, SLOT(setNormalizeValue(int)));
	QHBoxLayout * soundnormalizesliderlayout = new QHBoxLayout();
	soundnormalizesliderlayout->addWidget(soundnormalizebefore);
	soundnormalizesliderlayout->addWidget(soundnormalizeslider);
	soundnormalizesliderlayout->addWidget(soundnormalizeafter);
	soundtablayout->addLayout(soundnormalizelabellayout,r,1,1,1);
	soundtablayout->addLayout(soundnormalizesliderlayout,r,2,1,2);
	i = settings.value(SETTINGSSOUNDNORMALIZE, SETTINGSSOUNDNORMALIZEDEFAULT).toInt()/10;
	soundnormalizeslider->setValue(i);
	setNormalizeValue(i);
	soundnormalizevalue->setText(soundnormalizevalue->text() + "        "); //ensure space for label to grow without resizing window






	// sound volume restore slider
	r++;
	soundvolumerestorelabel = new QLabel(tr("Period to restore volume after louder sound:"),this);
	soundvolumerestorevalue = new QLabel("",this);
	QHBoxLayout * soundvolumerestorelabellayout = new QHBoxLayout();
	soundvolumerestorelabellayout->addWidget(soundvolumerestorelabel);
	soundvolumerestorelabellayout->addWidget(soundvolumerestorevalue);
	soundvolumerestorelabellayout->addStretch();
	soundvolumerestoreslider = new QSlider(Qt::Horizontal,this);
	soundvolumerestoreslider->setMinimum(SETTINGSSOUNDVOLUMERESTOREMIN/10);
	soundvolumerestoreslider->setMaximum(SETTINGSSOUNDVOLUMERESTOREMAX/10);
	soundvolumerestoreslider->setSingleStep(1);
	soundvolumerestoreslider->setPageStep(10);
	QLabel *soundvolumerestorebefore = new QLabel(QString::number(SETTINGSSOUNDVOLUMERESTOREMIN),this);
	QLabel *soundvolumerestoreafter = new QLabel(QString::number(SETTINGSSOUNDVOLUMERESTOREMAX),this);
	connect(soundvolumerestoreslider, SIGNAL(valueChanged(int)), this, SLOT(setVolumeRestoreValue(int)));
	QHBoxLayout * soundvolumerestoresliderlayout = new QHBoxLayout();
	soundvolumerestoresliderlayout->addWidget(soundvolumerestorebefore);
	soundvolumerestoresliderlayout->addWidget(soundvolumerestoreslider);
	soundvolumerestoresliderlayout->addWidget(soundvolumerestoreafter);
	soundtablayout->addLayout(soundvolumerestorelabellayout,r,1,1,1);
	soundtablayout->addLayout(soundvolumerestoresliderlayout,r,2,1,2);
	i = settings.value(SETTINGSSOUNDVOLUMERESTORE, SETTINGSSOUNDVOLUMERESTOREDEFAULT).toInt()/10;
	soundvolumerestoreslider->setValue(i);
	setVolumeRestoreValue(i);
	soundvolumerestorevalue->setText(soundvolumerestorevalue->text() + "        "); //ensure space for label to grow without resizing wind


#ifdef ESPEAK
	r++;
	{
#ifdef WIN32
		// use program install folder
		espeak_Initialize(AUDIO_OUTPUT_SYNCH_PLAYBACK,0,(char *) QFileInfo(QCoreApplication::applicationFilePath()).absolutePath().toUtf8().data(),0);
#else
		// use default path for espeak-data
		espeak_Initialize(AUDIO_OUTPUT_SYNCH_PLAYBACK,0,NULL,0);
#endif

		QString setvoice;
		voicelabel = new QLabel(tr("SAY Voice:"),this);
		soundtablayout->addWidget(voicelabel,r,1,1,1);
		voicecombo = new QComboBox(this);

		const espeak_VOICE **voices;
		voices = espeak_ListVoices(NULL);

		voicecombo->addItem(QString("default"),	QString("default"));
		for(int i=0; voices[i] != NULL; i++) {
			QString name = voices[i]->name;
			QString lang = (voices[i]->languages + 1);
			voicecombo->addItem( lang + " (" + name + ")",	name);
		}

		// set setting and select
		setvoice = settings.value(SETTINGSESPEAKVOICE, SETTINGSESPEAKVOICEDEFAULT).toString();
		int index = voicecombo->findData(setvoice);
		if ( index != -1 ) { // -1 for not found
			voicecombo->setCurrentIndex(index);
		}
		// add to layout
		soundtablayout->addWidget(voicecombo,r,2,1,2);
	}
#endif

#ifdef ESPEAK_EXECUTE
	r++;
	{
		// set statement to speak words
		speakstmtlabel = new QLabel(tr("PDF File Name:"),this);
		speakstmtinput = new QLineEdit(QString(),this);
		speakstmtinput->setText(settings.value(SETTINGSESPEAKSTATEMENT, SETTINGSESPEAKSTATEMENTDEFAULT).toString());
		speakstmtinput->setMaxLength(96);
		soundtablayout->addWidget(speakstmtlabel,r,1,1,1);
		soundtablayout->addWidget(speakstmtinput,r,2,1,2);
	}
#endif

	// *******************************************************************************************
	// build the printer tab
	printertablayout = new QGridLayout();
	printertabwidget = new QWidget(this);
	printertabwidget->setLayout(printertablayout);
	r=0;
	{
		int dflt = -1;
		int setprinter;
		printerslabel = new QLabel(tr("Printer:"),this);
		printertablayout->addWidget(printerslabel,r,1,1,1);
		printerscombo = new QComboBox(this);
		// build list of printers
		QList<QPrinterInfo> printerList=QPrinterInfo::availablePrinters();
		for (int i=0; i< printerList.count(); i++) {
			printerscombo->addItem(printerList[i].printerName(),i);
			if (printerList[i].isDefault()) dflt = i;
		}
		printerscombo->addItem(tr("PDF File Output"),-1);
		// set setting and select
		setprinter = settings.value(SETTINGSPRINTERPRINTER, dflt).toInt();
		if (setprinter<-1||setprinter>=printerList.count()) setprinter = dflt;
		int index = printerscombo->findData(setprinter);
		if ( index != -1 ) { // -1 for not found
			printerscombo->setCurrentIndex(index);
		}
		// add to layout
		printertablayout->addWidget(printerscombo,r,2,1,2);
	}
	//
	r++;
	{
		int setpaper;
		paperlabel = new QLabel(tr("Paper:"),this);
		printertablayout->addWidget(paperlabel,r,1,1,1);
		papercombo = new QComboBox(this);
		papercombo->addItem("A0 (841 x 1189 mm)",	QPrinter::A0);
		papercombo->addItem("A1 (594 x 841 mm)", QPrinter::A1);
		papercombo->addItem("A2 (420 x 594 mm", QPrinter::A2);
		papercombo->addItem("A3 (297 x 420 mm", QPrinter::A3);
		papercombo->addItem("A4 (210 x 297 mm, 8.26 x 11.69 inches", QPrinter::A4);
		papercombo->addItem("A5 (148 x 210 mm", QPrinter::A5);
		papercombo->addItem("A6 (105 x 148 mm", QPrinter::A6);
		papercombo->addItem("A7 (74 x 105 mm", QPrinter::A7);
		papercombo->addItem("A9 (52 x 74 mm", QPrinter::A8);
		papercombo->addItem("A9 (37 x 52 mm", QPrinter::A9);
		papercombo->addItem("B0 (1000 x 1414 mm", QPrinter::B0);
		papercombo->addItem("B1 (707 x 1000 mm", QPrinter::B1);
		papercombo->addItem("B2 (500 x 707 mm", QPrinter::B2);
		papercombo->addItem("B3 (353 x 500 mm", QPrinter::B3);
		papercombo->addItem("B4 (250 x 353 mm", QPrinter::B4);
		papercombo->addItem("B5 (176 x 250 mm, 6.93 x 9.84 inches", QPrinter::B5);
		papercombo->addItem("B6 (125 x 176 mm", QPrinter::B6);
		papercombo->addItem("B7 (88 x 125 mm", QPrinter::B7);
		papercombo->addItem("B8 (62 x 88 mm", QPrinter::B8);
		papercombo->addItem("B9 (33 x 62 mm", QPrinter::B9);
		papercombo->addItem("B10 (31 x 44 mm", QPrinter::B10);
		papercombo->addItem("#5 Envelope (163 x 229 mm", QPrinter::C5E);
		papercombo->addItem("#10 Envelope (105 x 241 mm", QPrinter::Comm10E);
		papercombo->addItem("DLE (110 x 220 mm", QPrinter::DLE);
		papercombo->addItem("Executive (7.5 x 10 inches, 190.5 x 254 mm", QPrinter::Executive);
		papercombo->addItem("Folio (210 x 330 mm", QPrinter::Folio);
		papercombo->addItem("Ledger (431.8 x 279.4 mm", QPrinter::Ledger);
		papercombo->addItem("Legal (8.5 x 14 inches, 215.9 x 355.6 mm", QPrinter::Legal);
		papercombo->addItem("Letter (8.5 x 11 inches, 215.9 x 279.4 mm", QPrinter::Letter);
		papercombo->addItem("Tabloid (279.4 x 431.8 mm", QPrinter::Tabloid);
		// set setting and select
		setpaper = settings.value(SETTINGSPRINTERPAPER, SETTINGSPRINTERPAPERDEFAULT).toInt();
		int index = papercombo->findData(setpaper);
		if ( index != -1 ) { // -1 for not found
			papercombo->setCurrentIndex(index);
		}
		// add to layout
		printertablayout->addWidget(papercombo,r,2,1,2);
	}
	//
	r++;
	{
		pdffilelabel = new QLabel(tr("PDF File Name:"),this);
		pdffileinput = new QLineEdit(QString(),this);
		pdffileinput->setText(settings.value(SETTINGSPRINTERPDFFILE, "").toString());
		pdffileinput->setMaxLength(96);
		printertablayout->addWidget(pdffilelabel,r,1,1,1);
		printertablayout->addWidget(pdffileinput,r,2,1,2);
	}
	//
	r++;
	{
		resolutiongroup = new QGroupBox(tr("Printer Resolution:"),this);
		resolutionhigh = new QRadioButton(tr("High"),this);
		resolutionscreen = new QRadioButton(tr("Screen"),this);
		QVBoxLayout *resolutionbox = new QVBoxLayout;
		resolutionbox->addWidget(resolutionhigh);
		resolutionbox->addWidget(resolutionscreen);
		resolutiongroup->setLayout(resolutionbox);
		printertablayout->addWidget(resolutiongroup,r,2,1,2);
		resolutionhigh->setChecked(settings.value(SETTINGSPRINTERRESOLUTION, SETTINGSPRINTERRESOLUTIONDEFAULT)==QPrinter::HighResolution);
		resolutionscreen->setChecked(settings.value(SETTINGSPRINTERRESOLUTION, SETTINGSPRINTERRESOLUTIONDEFAULT)==QPrinter::ScreenResolution);
	}
	//
	r++;
	{
		orientgroup = new QGroupBox(tr("Orientation:"),this);
		orientportrait = new QRadioButton(tr("Portrait"),this);
		orientlandscape = new QRadioButton(tr("Landscape"),this);
		QVBoxLayout *orientbox = new QVBoxLayout;
		orientbox->addWidget(orientportrait);
		orientbox->addWidget(orientlandscape);
		orientgroup->setLayout(orientbox);
		printertablayout->addWidget(orientgroup,r,2,1,2);
		orientportrait->setChecked(settings.value(SETTINGSPRINTERORIENT, SETTINGSPRINTERORIENTDEFAULT)==QPrinter::Portrait);
		orientlandscape->setChecked(settings.value(SETTINGSPRINTERORIENT, SETTINGSPRINTERORIENTDEFAULT)==QPrinter::Landscape);
	}


	// *******************************************************************************************
	// *******************************************************************************************
	// *******************************************************************************************
	// now that we have the tab layouts built - make the main window
	QTabWidget * tabs = new QTabWidget(this);
	tabs->addTab(usertabwidget,tr("User"));
	tabs->addTab(soundtabwidget,tr("Sound"));
	tabs->addTab(printertabwidget,tr("Printing"));
	if (showAdvanced) tabs->addTab(advancedtabwidget,tr("Advanced"));

	QGridLayout * mainlayout = new QGridLayout();
	mainlayout->addWidget(tabs,0,1,1,3);

	cancelbutton = new QPushButton(tr("Cancel"), this);
	connect(cancelbutton, SIGNAL(clicked()), this, SLOT (clickCancelButton()));
	savebutton = new QPushButton(tr("Save"), this);
	connect(savebutton, SIGNAL(clicked()), this, SLOT (clickSaveButton()));
	mainlayout->addWidget(cancelbutton,1,2,1,1);
	mainlayout->addWidget(savebutton,1,3,1,1);
	savebutton->setDefault(true);

	this->setLayout(mainlayout);

	move(settings.value(SETTINGSPREFPOS, QPoint(200, 200)).toPoint());
	setWindowTitle(tr("BASIC-256 Preferences and Settings"));
}

void PreferencesWin::clickCancelButton() {
	close();
}

void PreferencesWin::clickSaveButton() {
	bool validate = true;

	SETTINGS;

	// validate file name if PDF
	if (printerscombo->itemData(printerscombo->currentIndex())==-1 && pdffileinput->text()=="") {
		//
		QMessageBox::information(this, tr(SETTINGSAPP), tr("File name required for PDF output."),QMessageBox::Ok, QMessageBox::Ok);
		validate = false;
	}
	// add other validation here

	if(validate) {

		// *******************************************************************************************
		// advanced settings
		if(advancedtabwidget) {
			// only changed advanced settings if they are  shown
			//
			// if password has changed - digest and save
			QString currentpw = settings.value(SETTINGSPREFPASSWORD, "").toString();
			if(QString::compare(currentpw,passwordinput->text())!=0) {
				QString pw("");
				if(passwordinput->text().length()!=0) {
					pw = MD5(passwordinput->text().toUtf8().data()).hexdigest();
				}
				settings.setValue(SETTINGSPREFPASSWORD, pw);
			}
			//
			settings.setValue(SETTINGSALLOWSYSTEM, allowsystemcombo->itemData(allowsystemcombo->currentIndex()));
			settings.setValue(SETTINGSALLOWSETTING, settingcheckbox->isChecked());
			settings.setValue(SETTINGSSETTINGSACCESS, settingsaccesscombo->itemData(settingsaccesscombo->currentIndex()));
			settings.setValue(SETTINGSSETTINGSMAX, settingsmaxcombo->itemData(settingsmaxcombo->currentIndex()));
#ifdef WIN32
#ifndef WIN32PORTABLE
			settings.setValue(SETTINGSALLOWPORT, allowportcombo->itemData(allowportcombo->currentIndex()));
			//settings.setValue(SETTINGSALLOWPORT, portcheckbox->isChecked());
#endif
#endif
		}


		// *******************************************************************************************
		// user settings
		settings.setValue(SETTINGSIDESAVEONRUN, saveonruncheckbox->isChecked());
		if (typeconvcombo->currentIndex()!=-1) {
			settings.setValue(SETTINGSTYPECONV, typeconvcombo->itemData(typeconvcombo->currentIndex()));
		}
		if (varnotassignedcombo->currentIndex()!=-1) {
			settings.setValue(SETTINGSVARNOTASSIGNED, varnotassignedcombo->itemData(varnotassignedcombo->currentIndex()));
		}
		settings.setValue(SETTINGSDECDIGS, decdigsslider->value());
		settings.setValue(SETTINGSDEBUGSPEED, debugspeedslider->value());
		settings.setValue(SETTINGSFLOATTAIL, floattailcheckbox->isChecked());
		settings.setValue(SETTINGSFLOATLOCALE, floatlocalecheckbox->isChecked());
		settings.setValue(SETTINGSWINDOWSRESTORE, windowsrestorecheckbox->isChecked());
		settings.setValue(SETTINGSCHECKFORUPDATE, checkupdatecheckbox->isChecked());

		// *******************************************************************************************
		// sound settings
		settings.setValue(SETTINGSSOUNDVOLUME, soundvolumeslider->value());
		settings.setValue(SETTINGSSOUNDNORMALIZE, soundnormalizeslider->value()*10);
		settings.setValue(SETTINGSSOUNDVOLUMERESTORE, soundvolumerestoreslider->value()*10);
		if (soundsampleratecombo->currentIndex()!=-1) {
			settings.setValue(SETTINGSSOUNDSAMPLERATE, soundsampleratecombo->itemData(soundsampleratecombo->currentIndex()));
		}
#ifdef ESPEAK
		//
		if (voicecombo->currentIndex()!=-1) {
			settings.setValue(SETTINGSESPEAKVOICE, voicecombo->itemData(voicecombo->currentIndex()));
		}
#endif
#ifdef ESPEAK_EXECUTE
		//
		settings.setValue(SETTINGSESPEAKSTATEMENT, speakstmtinput->text());
#endif

		// *******************************************************************************************
		// printer settings
		if (printerscombo->currentIndex()!=-1) {
			settings.setValue(SETTINGSPRINTERPRINTER, printerscombo->itemData(printerscombo->currentIndex()));
		}
		//
		if (papercombo->currentIndex()!=-1) {
			settings.setValue(SETTINGSPRINTERPAPER, papercombo->itemData(papercombo->currentIndex()));
		}
		//
		settings.setValue(SETTINGSPRINTERPDFFILE, pdffileinput->text());
		//
		if (resolutionhigh->isChecked()) settings.setValue(SETTINGSPRINTERRESOLUTION, QPrinter::HighResolution);
		if (resolutionscreen->isChecked()) settings.setValue(SETTINGSPRINTERRESOLUTION, QPrinter::ScreenResolution);
		//
		if (orientportrait->isChecked()) settings.setValue(SETTINGSPRINTERORIENT, QPrinter::Portrait);
		if (orientlandscape->isChecked()) settings.setValue(SETTINGSPRINTERORIENT, QPrinter::Landscape);


		// *******************************************************************************************
		// all done
		QMessageBox::information(this, tr(SETTINGSAPP), tr("Preferences and settings have been saved."),QMessageBox::Ok, QMessageBox::Ok);
		//
		close();
	}
}

void PreferencesWin::closeEvent(QCloseEvent *e) {
	(void) e;
	// save current screen posision
	SETTINGS;
	//settings.setValue(SETTINGSPREFSIZE, size());
	settings.setValue(SETTINGSPREFPOS, pos());
}

void PreferencesWin::setDigitsValue(int i){
	QString t = QString::number(i) + " " + tr("digits");
	QToolTip::showText(QCursor::pos(), t);
	decdigsvalue->setText(t);
	decdigsslider->setToolTip(t);
}

void PreferencesWin::setDebugSpeedValue(int i){
	QString t = tr("pause") + " " + QString::number(i) + " " + tr("ms");
	QToolTip::showText(QCursor::pos(),t);
	debugspeedvalue->setText(t);
	debugspeedslider->setToolTip(t);
}

void PreferencesWin::setVolumeValue(int i){
	QString t = QString::number(i);
	QToolTip::showText(QCursor::pos(), t);
	soundvolumevalue->setText(t);
	soundvolumeslider->setToolTip(t);
}

void PreferencesWin::setNormalizeValue(int i){
	QString t = QString::number(i*10) + " " + tr("ms");
	QToolTip::showText(QCursor::pos(), t);
	soundnormalizevalue->setText(t);
	soundnormalizeslider->setToolTip(t);
}

void PreferencesWin::setVolumeRestoreValue(int i){
	QString t = QString::number(i*10) + " " + tr("ms");
	QToolTip::showText(QCursor::pos(), t);
	soundvolumerestorevalue->setText(t);
	soundvolumerestoreslider->setToolTip(t);
}

void PreferencesWin::clickClearSavedData() {
	if(QMessageBox::Yes == QMessageBox::question(this, tr("Delete persistent settings"), tr("Do you really want to delete persistent settings for all programs?"), QMessageBox::Yes|QMessageBox::No, QMessageBox::No)){
		SETTINGS;
		settings.beginGroup(SETTINGSGROUPUSER);
		settings.remove("");
		settings.endGroup();
	}
}

void PreferencesWin::clickBrowseSavedData() {
	settingsbrowser = new SettingsBrowser(this);
	settingsbrowser->exec();
	delete settingsbrowser;
}




SettingsBrowser::SettingsBrowser (QWidget * parent):QDialog(parent) {
	setWindowTitle(tr("BASIC-256 Persistent settings"));
	QGridLayout *layout = new QGridLayout(this);
	setLayout(layout);
	QFileIconProvider iconProvider;
	treeWidgetSettings = new QTreeWidget(this);
	treeWidgetSettings->setColumnCount(2);
	treeWidgetSettings->setHeaderLabels(QStringList() << tr("Program/Key") << tr("Value"));
	QList<QTreeWidgetItem *> items;

	SETTINGS;
	settings.beginGroup(SETTINGSGROUPUSER);
	QStringList applications = settings.childGroups();

	for (int p = 0; p < applications.size(); p++){
		QString app(applications.at(p));
		settings.beginGroup(app);
		QStringList keys = settings.childKeys();
		QTreeWidgetItem *item = new QTreeWidgetItem(treeWidgetSettings, (QStringList() << app << QString::number(keys.count())) );
		item->setFlags(item->flags() | Qt::ItemIsTristate | Qt::ItemIsUserCheckable);
		item->setCheckState(0, Qt::Unchecked);
		item->setIcon(0,iconProvider.icon(QFileIconProvider::Folder));
		for (int k = 0; k < keys.size(); k++){
			QString key(keys.at(k));
			QTreeWidgetItem *i = new QTreeWidgetItem(item, QStringList() << key << settings.value(key, "").toString());
			i->setCheckState(0, Qt::Unchecked);
			item->addChild(i);
		}
		settings.endGroup();
		items.append(item);
	}
	settings.endGroup();
	treeWidgetSettings->insertTopLevelItems(0, items);
	treeWidgetSettings->setSortingEnabled(true);
	treeWidgetSettings->sortItems(0, Qt::AscendingOrder);
	treeWidgetSettings->resizeColumnToContents(0);
	layout->addWidget(treeWidgetSettings, 1, 1, 1, 2);

	deleteselectedsettings = new QPushButton(tr("Delete selected settings"), this);
	deleteselectedsettings->setEnabled(false);
	connect(deleteselectedsettings, SIGNAL(clicked()), this, SLOT (clickDeleteButton()));
	layout->addWidget(deleteselectedsettings, 2, 1);

	canceldeletesettings = new QPushButton(tr("Cancel"), this);
	canceldeletesettings->setDefault(true);
	connect(canceldeletesettings, SIGNAL(clicked()), this, SLOT (reject()));
	layout->addWidget(canceldeletesettings,2,2);

	connect(treeWidgetSettings, SIGNAL(itemChanged(QTreeWidgetItem*, int)), this, SLOT (treeWidgetCheckboxChanged()));
}

void SettingsBrowser::treeWidgetCheckboxChanged() {
	QTreeWidgetItemIterator it(treeWidgetSettings);
	while (*it) {
		if ((*it)->checkState(0) != Qt::Unchecked){
			deleteselectedsettings->setEnabled(true);
			return;
		}
		++it;
	}
	deleteselectedsettings->setEnabled(false);
}

void SettingsBrowser::clickDeleteButton() {
	if(QMessageBox::Yes == QMessageBox::question(this, tr("Delete selected settings"), tr("Do you really want to delete selected persistent settings?"), QMessageBox::Yes|QMessageBox::No, QMessageBox::No)){
		SETTINGS;
		settings.beginGroup(SETTINGSGROUPUSER);

		deleteselectedsettings->setEnabled(false);
		int top=treeWidgetSettings->topLevelItemCount()-1;
		while(top>=0){
			QTreeWidgetItem *topitem = treeWidgetSettings->topLevelItem(top);
			if(topitem->checkState(0) == Qt::Checked){
				settings.remove(topitem->text(0));
				delete topitem;
			}
			top--;
		}

		QTreeWidgetItemIterator it(treeWidgetSettings);
		while (*it) {
			QTreeWidgetItem * item = (*it);
			++it;
			if (item->checkState(0) == Qt::Checked){
					settings.remove(item->parent()->text(0) + QString("/") + item->text(0));
					delete item;
			}
		}
		settings.endGroup();
	}
}