#include <QVBoxLayout>
#include <QGridLayout>
#include <QCloseEvent>
#include <QLabel>
#include <QFontDatabase>
#include "qmppianowidget.hpp"
#include "qmpkeyboardwindow.hpp"

qmpKeyboardWindow::qmpKeyboardWindow(qmpPluginAPI *_api,QWidget *parent):
	QWidget(parent,Qt::Dialog),api(_api)
{
	setWindowTitle("Keyboard");
	QGridLayout *grid;
	setLayout(grid=new QGridLayout());
	for(int ch=0;ch<16;++ch)
	{
		grid->addWidget(lb[ch]=new QLabel,ch,0);
		grid->addWidget(pw[ch]=new qmpPianoWidget(this),ch,1);
		lb[ch]->setFont(QFontDatabase::systemFont(QFontDatabase::SystemFont::FixedFont));
		pw[ch]->setSizePolicy(QSizePolicy::Policy::Expanding,QSizePolicy::Policy::Preferred);
		QPalette p=palette();
		p.setColor(QPalette::ColorRole::Highlight,api->getOptionUint("Keyboard/acolor"+std::to_string(ch)));
		p.setColor(QPalette::ColorRole::Base,api->getOptionUint("Keyboard/bcolor"+std::to_string(ch)));
		pw[ch]->setPalette(p);
	}
	hide();
	eh=api->registerEventHandler(
		[this](const void* ee,void*){
			const SEvent *e=(const SEvent*)ee;
			int ch=e->type&0xF;
			if((e->type&0xF0)==0x80||((e->type&0xF0)==0x90&&e->p2==0))
				emit keystateupdated(ch,e->p1,false);
			if((e->type&0xF0)==0x90&&e->p2>0)
				emit keystateupdated(ch,e->p1,e->p2>0);
			if((e->type&0xF0)==0xB0||(e->type&0xF0)==0xC0)
			lb[ch]->setText(
				QString::fromStdString(api->getChannelPresetString(ch))+
				QString("\nch:%1 v:0x%2 p:0x%3 e:0x%4")
						.arg(ch+1,2,10,QChar('0'))
						.arg(api->getChannelCC(ch,0x7),2,16,QChar('0'))
						.arg(api->getChannelCC(ch,0xa),2,16,QChar('0'))
						.arg(api->getChannelCC(ch,0xb),2,16,QChar('0')));
		}
	,nullptr,true);
	connect(this,&qmpKeyboardWindow::keystateupdated,this,&qmpKeyboardWindow::onkeystatesupdate);
}
qmpKeyboardWindow::~qmpKeyboardWindow()
{
	api->unregisterEventHandler(eh);
}
void qmpKeyboardWindow::closeEvent(QCloseEvent *event)
{
	api->setFuncState("Keyboard",false);
	event->accept();
}
void qmpKeyboardWindow::onkeystatesupdate(int ch,int key,bool state)
{pw[ch]->setKeyState(key,state);}
void qmpKeyboardWindow::resetAll()
{
	for(int ch=0;ch<16;++ch)
	{
		pw[ch]->reset();
		lb[ch]->setText(
			QString::fromStdString(api->getChannelPresetString(ch))+
			QString("\nch:%1 v:0x%2 p:0x%3 e:0x%4")
					.arg(ch+1,2,10,QChar('0'))
					.arg(api->getChannelCC(ch,0x7),2,16,QChar('0'))
					.arg(api->getChannelCC(ch,0xa),2,16,QChar('0'))
					.arg(api->getChannelCC(ch,0xb),2,16,QChar('0')));
	}
}