Sometimes Naïve!

1 files changed, 510 insertions, 0 deletions

diff --git a/qmidiplayer.src.d/qmpmainwindow.cpp b/qmidiplayer.src.d/qmpmainwindow.cpp
new file mode 100644
index 0000000..453bd01
--- /dev/null
+++ b/qmidiplayer.src.d/qmpmainwindow.cpp
@@ -0,0 +1,510 @@
+#include <cstdio>
+#include <QUrl>
+#include <QMimeData>
+#include <QDirIterator>
+#include <QDesktopWidget>
+#include "qmpmainwindow.hpp"
+#include "ui_qmpmainwindow.h"
+#include "../common/qmpmidiplay.hpp"
+#ifdef _WIN32
+#include <Windows.h>
+#endif
+
+qmpMainWindow* qmpMainWindow::ref=NULL;
+
+qmpMainWindow::qmpMainWindow(QWidget *parent) :
+	QMainWindow(parent),
+	ui(new Ui::qmpMainWindow)
+{
+	ui->setupUi(this);
+	ui->lbFileName->setText("");ref=this;
+	playing=false;stopped=true;dragging=false;
+	settingsw=new qmpSettingsWindow(this);
+	plistw=new qmpPlistWindow(this);
+	chnlw=new qmpChannelsWindow(this);
+	efxw=new qmpEfxWindow(this);
+	infow=new qmpInfoWindow(this);
+	helpw=new qmpHelpWindow(this);
+	timer=new QTimer(this);
+	fnA1=new QAction("File Information",ui->lbFileName);
+	fnA2=new QAction("Render to Wave",ui->lbFileName);
+	ui->lbFileName->addAction(fnA1);
+	ui->lbFileName->addAction(fnA2);
+	singleFS=qmpSettingsWindow::getSettingsIntf()->value("Behavior/SingleInstance",0).toInt();
+	player=new CMidiPlayer(singleFS);
+	if(singleFS){player->fluidPreInitialize();playerSetup();player->fluidInitialize();
+		for(int i=settingsw->getSFWidget()->count()-1;i>=0;--i)
+			player->pushSoundFont(settingsw->getSFWidget()->item(i)->text().toStdString().c_str());}
+	if(qmpSettingsWindow::getSettingsIntf()->value("Behavior/DialogStatus",0).toInt())
+	{
+		QRect g=geometry();
+		g.setTopLeft(qmpSettingsWindow::getSettingsIntf()->value("DialogStatus/MainW",QPoint(-999,-999)).toPoint());
+		if(g.topLeft()!=QPoint(-999,-999))setGeometry(g);
+		else setGeometry(QStyle::alignedRect(
+							 Qt::LeftToRight,Qt::AlignCenter,size(),
+							 qApp->desktop()->availableGeometry()));
+	}show();
+	if(qmpSettingsWindow::getSettingsIntf()->value("DialogStatus/PListWShown",0).toInt())
+	{ui->pbPList->setChecked(true);on_pbPList_clicked();}
+	if(qmpSettingsWindow::getSettingsIntf()->value("DialogStatus/ChnlWShown",0).toInt())
+	{ui->pbChannels->setChecked(true);on_pbChannels_clicked();}
+	if(qmpSettingsWindow::getSettingsIntf()->value("DialogStatus/EfxWShown",0).toInt())
+	{ui->pbEfx->setChecked(true);on_pbEfx_clicked();}
+	ui->vsMasterVol->setValue(qmpSettingsWindow::getSettingsIntf()->value("Audio/Gain",50).toInt());
+	connect(fnA1,SIGNAL(triggered()),this,SLOT(onfnA1()));
+	connect(fnA2,SIGNAL(triggered()),this,SLOT(onfnA2()));
+	connect(timer,SIGNAL(timeout()),this,SLOT(updateWidgets()));
+	connect(timer,SIGNAL(timeout()),chnlw,SLOT(channelWindowsUpdate()));
+	connect(timer,SIGNAL(timeout()),infow,SLOT(updateInfo()));
+}
+
+qmpMainWindow::~qmpMainWindow()
+{
+	delete player;
+	delete timer;
+	delete ui;
+}
+
+int qmpMainWindow::pharseArgs(int argc,char** argv)
+{
+	bool havemidi=false,loadfolder=false;
+	for(int i=1;i<argc;++i)
+	{
+		if(argv[i][0]=='-')
+		{
+			if(!strcmp(argv[i],"--help"))
+			{
+				printf("Usage: %s [Options] [Midi Files]\n",argv[0]);
+				printf("Possible options are: \n");
+				printf("-l, --load-all-files  Load all files from the same folder.\n");
+				printf("--help                Show this help and exit.\n");
+				printf("--version             Show this version information and exit.\n");
+				return 1;
+			}
+			if(!strcmp(argv[i],"--version"))
+			{
+				printf("QMidiPlayer %s\n",APP_VERSION);
+				return 1;
+			}
+			if(!strcmp(argv[i],"-l")||!strcmp(argv[i],"--load-all-files"))
+				loadfolder=true;
+		}
+		else
+		if(fluid_is_midifile(argv[i]))
+		{
+			if(!havemidi){havemidi=true;plistw->emptyList();}
+			if(loadfolder||qmpSettingsWindow::getSettingsIntf()->value("Behavior/LoadFolder",0).toInt())
+			{
+				QDirIterator di(QUrl(argv[i]).adjusted(QUrl::RemoveFilename).toString());
+				while(di.hasNext())
+				{
+					QString c=di.next();
+					if((c.endsWith(".mid")||c.endsWith(".midi"))&&fluid_is_midifile(c.toStdString().c_str()))
+					plistw->insertItem(c.toStdString().c_str());
+				}
+			}
+			else
+			plistw->insertItem(argv[i]);
+		}
+	}
+	if(havemidi)on_pbPlayPause_clicked();
+	return 0;
+}
+
+void qmpMainWindow::closeEvent(QCloseEvent *event)
+{
+	on_pbStop_clicked();fin=true;
+	efxw->close();chnlw->close();
+	plistw->close();infow->close();
+	settingsw->close();
+	delete helpw;helpw=NULL;
+	delete efxw;efxw=NULL;
+	delete chnlw;chnlw=NULL;
+	delete plistw;plistw=NULL;
+	delete infow;infow=NULL;
+	delete settingsw;settingsw=NULL;
+	event->accept();
+}
+
+void qmpMainWindow::moveEvent(QMoveEvent *event)
+{
+	if(qmpSettingsWindow::getSettingsIntf()->value("Behavior/DialogStatus","").toInt())
+	{
+		qmpSettingsWindow::getSettingsIntf()->setValue("DialogStatus/MainW",event->pos());
+	}
+}
+void qmpMainWindow::dropEvent(QDropEvent *event)
+{
+	QList<QUrl> l=event->mimeData()->urls();
+	QStringList sl;
+	for(int i=0;i<l.size();++i)
+		sl.push_back(l.at(i).toLocalFile());
+	plistw->insertItems(sl);
+}
+void qmpMainWindow::dragEnterEvent(QDragEnterEvent *event)
+{
+	//if(event->mimeData()->hasFormat("application/x-midi"))
+	event->acceptProposedAction();
+}
+
+void qmpMainWindow::updateWidgets()
+{
+	fnA2->setEnabled(stopped);
+	if(player->isFinished()&&playerTh)
+	{
+		if(!plistw->getRepeat())
+		{
+			timer->stop();stopped=true;playing=false;
+			fnA2->setEnabled(stopped);
+			player->playerDeinit();playerTh->join();
+			delete playerTh;playerTh=NULL;
+			if(singleFS)player->playerPanic(true);
+			chnlw->on_pbUnmute_clicked();chnlw->on_pbUnsolo_clicked();
+			ui->pbPlayPause->setIcon(QIcon(":/img/play.png"));
+			ui->hsTimer->setValue(0);
+			ui->lbPolyphone->setText("Poly: 0/0");
+			ui->lbCurTime->setText("00:00");
+		}
+		else
+		{
+			timer->stop();player->playerDeinit();playerTh->join();
+			delete playerTh;playerTh=NULL;
+			ui->hsTimer->setValue(0);
+			if(singleFS)player->playerPanic(true);
+			chnlw->on_pbUnmute_clicked();chnlw->on_pbUnsolo_clicked();
+			QString fns=plistw->getNextItem();
+			ui->lbFileName->setText(QUrl(fns).fileName());
+			if(!player->playerLoadFile(fns.toStdString().c_str()))return;
+			char ts[100];
+			sprintf(ts,"%02d:%02d",(int)player->getFtime()/60,(int)player->getFtime()%60);
+			ui->lbFinTime->setText(ts);
+			player->playerInit();if(!singleFS){playerSetup();player->fluidInitialize();
+			for(int i=settingsw->getSFWidget()->count()-1;i>=0;--i)
+				player->pushSoundFont(settingsw->getSFWidget()->item(i)->text().toStdString().c_str());}
+			player->setGain(ui->vsMasterVol->value()/250.);efxw->sendEfxChange();
+			player->setWaitVoice(qmpSettingsWindow::getSettingsIntf()->value("Midi/WaitVoice",1).toInt());
+			playerTh=new std::thread(&CMidiPlayer::playerThread,player);
+#ifdef _WIN32
+			SetThreadPriority(playerTh->native_handle(),THREAD_PRIORITY_TIME_CRITICAL);
+#endif
+			st=std::chrono::steady_clock::now();offset=0;
+			timer->start(100);
+		}
+	}
+	if(renderTh)
+	{
+		if(player->isFinished())
+		{
+			renderTh->join();timer->stop();
+			ui->centralWidget->setEnabled(true);
+			delete renderTh;renderTh=NULL;
+			player->rendererDeinit();
+			if(singleFS){player->fluidPreInitialize();playerSetup();player->fluidInitialize();}
+		}
+	}
+	while(!player->isFinished()&&player->getTCeptr()>player->getStamp(ui->hsTimer->value())
+		  &&ui->hsTimer->value()<=100&&!dragging)
+		ui->hsTimer->setValue(ui->hsTimer->value()+1);
+	if(playing)
+	{
+		std::chrono::duration<double> elapsed=
+				std::chrono::duration_cast<std::chrono::duration<double>>(std::chrono::steady_clock::now()-st);
+		char ts[100];
+		sprintf(ts,"%02d:%02d",(int)(elapsed.count()+offset)/60,(int)(elapsed.count()+offset)%60);
+		ui->lbCurTime->setText(ts);
+		sprintf(ts,"Poly: %d/%d",player->getPolyphone(),player->getMaxPolyphone());
+		ui->lbPolyphone->setText(ts);
+	}
+}
+
+QString qmpMainWindow::getFileName(){return ui->lbFileName->text();}
+
+void qmpMainWindow::playerSetup()
+{
+	fluid_settings_t* fsettings=player->getFluidSettings();
+	QSettings* settings=qmpSettingsWindow::getSettingsIntf();
+	fluid_settings_setstr(fsettings,"audio.driver",settings->value("Audio/Driver","").toString().toStdString().c_str());
+	fluid_settings_setint(fsettings,"audio.period-size",settings->value("Audio/BufSize","").toInt());
+	fluid_settings_setint(fsettings,"audio.periods",settings->value("Audio/BufCnt","").toInt());
+	fluid_settings_setstr(fsettings,"audio.sample-format",settings->value("Audio/Format","").toString().toStdString().c_str());
+	fluid_settings_setint(fsettings,"synth.sample-rate",settings->value("Audio/Frequency","").toInt());
+	fluid_settings_setint(fsettings,"synth.polyphony",settings->value("Audio/Polyphony","").toInt());
+	fluid_settings_setint(fsettings,"synth.cpu-cores",settings->value("Audio/Threads","").toInt());
+	char bsmode[4];
+	if(!singleFS&&settings->value("Audio/AutoBS",1).toInt()&&player->getFileStandard())
+		switch(player->getFileStandard())
+		{
+			case 1:strcpy(bsmode,"gm");break;
+			case 2:strcpy(bsmode,"mma");break;
+			case 3:strcpy(bsmode,"gs");break;
+			case 4:strcpy(bsmode,"xg");break;
+		}
+	else
+	{
+		if(settings->value("Audio/BankSelect","CC#0").toString()==QString("Ignored"))
+			strcpy(bsmode,"gm");
+		if(settings->value("Audio/BankSelect","CC#0").toString()==QString("CC#0"))
+			strcpy(bsmode,"gs");
+		if(settings->value("Audio/BankSelect","CC#0").toString()==QString("CC#32"))
+			strcpy(bsmode,"xg");
+		if(settings->value("Audio/BankSelect","CC#0").toString()==QString("CC#0*128+CC#32"))
+			strcpy(bsmode,"mma");
+	}
+	fluid_settings_setstr(fsettings,"synth.midi-bank-select",bsmode);
+	player->sendSysX(settings->value("Midi/SendSysEx",1).toInt());
+}
+
+void qmpMainWindow::on_pbPlayPause_clicked()
+{
+	playing=!playing;
+	if(stopped)
+	{
+		QString fns=plistw->getFirstItem();
+		if(!fns.length())
+		{
+			plistw->on_pbAdd_clicked();
+			fns=plistw->getFirstItem();
+			if(!fns.length())return(void)(playing=false);
+		}
+		ui->lbFileName->setText(QUrl(fns).fileName());
+		if(!player->playerLoadFile(fns.toStdString().c_str()))return;
+		char ts[100];
+		sprintf(ts,"%02d:%02d",(int)player->getFtime()/60,(int)player->getFtime()%60);
+		ui->lbFinTime->setText(ts);
+		player->playerInit();if(!singleFS){playerSetup();player->fluidInitialize();
+		for(int i=settingsw->getSFWidget()->count()-1;i>=0;--i)
+			player->pushSoundFont(settingsw->getSFWidget()->item(i)->text().toStdString().c_str());}
+		player->setGain(ui->vsMasterVol->value()/250.);efxw->sendEfxChange();
+		player->setWaitVoice(qmpSettingsWindow::getSettingsIntf()->value("Midi/WaitVoice",1).toInt());
+		playerTh=new std::thread(&CMidiPlayer::playerThread,player);
+#ifdef _WIN32
+			SetThreadPriority(playerTh->native_handle(),THREAD_PRIORITY_TIME_CRITICAL);
+#endif
+		st=std::chrono::steady_clock::now();offset=0;
+		timer->start(100);
+		stopped=false;
+	}
+	else
+	{
+		if(!playing)
+		{
+			player->playerPanic();
+			offset=ui->hsTimer->value()/100.*player->getFtime();
+		}
+		else
+		{
+			st=std::chrono::steady_clock::now();
+			player->setResumed();
+		}
+		player->setTCpaused(!playing);
+	}
+	ui->pbPlayPause->setIcon(QIcon(playing?":/img/pause.png":":/img/play.png"));
+}
+
+void qmpMainWindow::on_hsTimer_sliderPressed()
+{
+	dragging=true;
+}
+
+void qmpMainWindow::on_hsTimer_sliderReleased()
+{
+	dragging=false;
+	if(playing)
+	{
+		if(ui->hsTimer->value()==100){on_pbNext_clicked();return;}
+		player->setTCeptr(player->getStamp(ui->hsTimer->value()),ui->hsTimer->value());
+		player->playerPanic();
+		offset=ui->hsTimer->value()/100.*player->getFtime();
+		st=std::chrono::steady_clock::now();
+	}
+	else
+	{
+		player->setTCeptr(player->getStamp(ui->hsTimer->value()),ui->hsTimer->value());
+		offset=ui->hsTimer->value()/100.*player->getFtime();
+		char ts[100];
+		sprintf(ts,"%02d:%02d",(int)(offset)/60,(int)(offset)%60);
+		ui->lbCurTime->setText(ts);
+	}
+}
+
+void qmpMainWindow::on_vsMasterVol_valueChanged()
+{
+	if(!stopped)player->setGain(ui->vsMasterVol->value()/250.);
+	qmpSettingsWindow::getSettingsIntf()->setValue("Audio/Gain",ui->vsMasterVol->value());
+}
+
+void qmpMainWindow::on_pbStop_clicked()
+{
+	if(!stopped)
+	{
+		timer->stop();stopped=true;playing=false;
+		player->playerDeinit();fnA2->setEnabled(stopped);
+		if(singleFS)player->playerPanic(true);
+		if(playerTh){playerTh->join();delete playerTh;playerTh=NULL;}
+		chnlw->on_pbUnmute_clicked();chnlw->on_pbUnsolo_clicked();
+		ui->pbPlayPause->setIcon(QIcon(":/img/play.png"));
+		ui->hsTimer->setValue(0);
+		ui->lbPolyphone->setText("Poly: 0/0");
+		ui->lbCurTime->setText("00:00");
+	}
+}
+
+void qmpMainWindow::dialogClosed()
+{
+	if(!plistw->isVisible())ui->pbPList->setChecked(false);
+	if(!chnlw->isVisible())ui->pbChannels->setChecked(false);
+	if(!efxw->isVisible())ui->pbEfx->setChecked(false);
+	if(!settingsw->isVisible())ui->pbSettings->setChecked(false);
+}
+
+void qmpMainWindow::on_pbPList_clicked()
+{
+	if(ui->pbPList->isChecked())
+	{
+		QRect g=plistw->geometry();
+		g.setTopLeft(qmpSettingsWindow::getSettingsIntf()->value("DialogStatus/PListW",QPoint(-999,-999)).toPoint());
+		if(g.topLeft()==QPoint(-999,-999))
+			g.setTopLeft(window()->mapToGlobal(window()->rect().center())-plistw->rect().center());
+		plistw->setGeometry(g);
+		plistw->show();
+	}else plistw->close();
+}
+
+void qmpMainWindow::on_pbChannels_clicked()
+{
+	if(ui->pbChannels->isChecked())
+	{
+		QRect g=chnlw->geometry();
+		g.setTopLeft(qmpSettingsWindow::getSettingsIntf()->value("DialogStatus/ChnlW",QPoint(-999,-999)).toPoint());
+		if(g.topLeft()==QPoint(-999,-999))
+			g.setTopLeft(window()->mapToGlobal(window()->rect().center())-chnlw->rect().center());
+		chnlw->setGeometry(g);
+		chnlw->show();
+	}else chnlw->close();
+}
+
+void qmpMainWindow::on_pbPrev_clicked()
+{
+	timer->stop();player->playerDeinit();
+	if(playerTh){playerTh->join();delete playerTh;playerTh=NULL;}
+	if(singleFS)player->playerPanic(true);
+	ui->hsTimer->setValue(0);chnlw->on_pbUnmute_clicked();chnlw->on_pbUnsolo_clicked();
+	QString fns=plistw->getPrevItem();if(fns.length()==0)return on_pbStop_clicked();
+	ui->lbFileName->setText(QUrl(fns).fileName());
+	if(!player->playerLoadFile(fns.toStdString().c_str()))return;
+	char ts[100];
+	sprintf(ts,"%02d:%02d",(int)player->getFtime()/60,(int)player->getFtime()%60);
+	ui->lbFinTime->setText(ts);
+	player->playerInit();if(!singleFS){playerSetup();player->fluidInitialize();
+	for(int i=settingsw->getSFWidget()->count()-1;i>=0;--i)
+		player->pushSoundFont(settingsw->getSFWidget()->item(i)->text().toStdString().c_str());}
+	player->setGain(ui->vsMasterVol->value()/250.);efxw->sendEfxChange();
+	player->setWaitVoice(qmpSettingsWindow::getSettingsIntf()->value("Midi/WaitVoice",1).toInt());
+	playerTh=new std::thread(&CMidiPlayer::playerThread,player);
+#ifdef _WIN32
+			SetThreadPriority(playerTh->native_handle(),THREAD_PRIORITY_TIME_CRITICAL);
+#endif
+	st=std::chrono::steady_clock::now();offset=0;
+	timer->start(100);
+}
+
+void qmpMainWindow::on_pbNext_clicked()
+{
+	timer->stop();player->playerDeinit();
+	if(playerTh){playerTh->join();delete playerTh;playerTh=NULL;}
+	if(singleFS)player->playerPanic(true);
+	ui->hsTimer->setValue(0);chnlw->on_pbUnmute_clicked();chnlw->on_pbUnsolo_clicked();
+	QString fns=plistw->getNextItem();if(fns.length()==0)return on_pbStop_clicked();
+	ui->lbFileName->setText(QUrl(fns).fileName());
+	if(!player->playerLoadFile(fns.toStdString().c_str()))return;
+	char ts[100];
+	sprintf(ts,"%02d:%02d",(int)player->getFtime()/60,(int)player->getFtime()%60);
+	ui->lbFinTime->setText(ts);
+	player->playerInit();if(!singleFS){playerSetup();player->fluidInitialize();
+	for(int i=settingsw->getSFWidget()->count()-1;i>=0;--i)
+		player->pushSoundFont(settingsw->getSFWidget()->item(i)->text().toStdString().c_str());}
+	player->setGain(ui->vsMasterVol->value()/250.);efxw->sendEfxChange();
+	player->setWaitVoice(qmpSettingsWindow::getSettingsIntf()->value("Midi/WaitVoice",1).toInt());
+	playerTh=new std::thread(&CMidiPlayer::playerThread,player);
+#ifdef _WIN32
+			SetThreadPriority(playerTh->native_handle(),THREAD_PRIORITY_TIME_CRITICAL);
+#endif
+	st=std::chrono::steady_clock::now();offset=0;
+	timer->start(100);
+}
+
+void qmpMainWindow::selectionChanged()
+{
+	stopped=false;playing=true;
+	ui->pbPlayPause->setIcon(QIcon(":/img/pause.png"));
+	timer->stop();player->playerDeinit();
+	if(playerTh){playerTh->join();delete playerTh;playerTh=NULL;}
+	if(singleFS)player->playerPanic(true);
+	ui->hsTimer->setValue(0);
+	chnlw->on_pbUnmute_clicked();chnlw->on_pbUnsolo_clicked();
+	QString fns=plistw->getSelectedItem();
+	ui->lbFileName->setText(QUrl(fns).fileName());
+	if(!player->playerLoadFile(fns.toStdString().c_str()))return;
+	char ts[100];
+	sprintf(ts,"%02d:%02d",(int)player->getFtime()/60,(int)player->getFtime()%60);
+	ui->lbFinTime->setText(ts);
+	player->playerInit();if(!singleFS){playerSetup();player->fluidInitialize();
+	for(int i=settingsw->getSFWidget()->count()-1;i>=0;--i)
+		player->pushSoundFont(settingsw->getSFWidget()->item(i)->text().toStdString().c_str());}
+	player->setGain(ui->vsMasterVol->value()/250.);efxw->sendEfxChange();
+	player->setWaitVoice(qmpSettingsWindow::getSettingsIntf()->value("Midi/WaitVoice",1).toInt());
+	playerTh=new std::thread(&CMidiPlayer::playerThread,player);
+#ifdef _WIN32
+			SetThreadPriority(playerTh->native_handle(),THREAD_PRIORITY_TIME_CRITICAL);
+#endif
+	st=std::chrono::steady_clock::now();offset=0;
+	timer->start(100);
+}
+
+void qmpMainWindow::on_pbEfx_clicked()
+{
+	if(ui->pbEfx->isChecked())
+	{
+		QRect g=efxw->geometry();
+		g.setTopLeft(qmpSettingsWindow::getSettingsIntf()->value("DialogStatus/EfxW",QPoint(-999,-999)).toPoint());
+		if(g.topLeft()==QPoint(-999,-999))
+			g.setTopLeft(window()->mapToGlobal(window()->rect().center())-efxw->rect().center());
+		efxw->setGeometry(g);
+		efxw->show();
+	}
+	else efxw->close();
+}
+
+void qmpMainWindow::on_lbFileName_customContextMenuRequested(const QPoint &pos)
+{
+	QMenu menu(ui->lbFileName);
+	menu.addActions(ui->lbFileName->actions());
+	menu.exec(this->pos()+ui->lbFileName->pos()+pos);
+}
+
+void qmpMainWindow::onfnA1()
+{
+	infow->show();
+}
+
+void qmpMainWindow::onfnA2()
+{
+	if(singleFS)player->fluidDeinitialize();
+	player->rendererLoadFile((plistw->getSelectedItem()+QString(".wav")).toStdString().c_str());
+	playerSetup();player->rendererInit(plistw->getSelectedItem().toStdString().c_str());
+	ui->centralWidget->setEnabled(false);
+	for(int i=settingsw->getSFWidget()->count()-1;i>=0;--i)
+		player->pushSoundFont(settingsw->getSFWidget()->item(i)->text().toStdString().c_str());
+	player->setGain(ui->vsMasterVol->value()/250.);efxw->sendEfxChange();timer->start(100);
+	renderTh=new std::thread(&CMidiPlayer::rendererThread,player);
+}
+
+void qmpMainWindow::on_pbSettings_clicked()
+{
+	if(ui->pbSettings->isChecked())settingsw->show();else settingsw->close();
+}
+
+void qmpMainWindow::on_pushButton_clicked()
+{
+	helpw->show();
+}