/* flip - pageflipper for TIFF animations
 * Copyright (C) 1999 Mark B. Allan (mba@reptilelabour.com)
 *
 * "flip" is free software; you can redistribute it and/or use 
 * it and/or modify it under the terms of the "Artistic License" 
 */
 
#include "FlipPreferences.h"

#include <qmessagebox.h>
#include <qfiledialog.h>

#include "define.h"
#include "Config.h"
#include "MainWindow.h"



//====================================================================
FlipPreferences::FlipPreferences(QWidget *parent, const char* name)
	:	QDialog(parent, name, true)	
{
	int i;
	QString	caption = APP_NAME;
	caption += " Preferences";
	setCaption(caption);
	
	topLayout	= new QVBoxLayout(this, 5, 5);
	butLayout	= new QHBoxLayout(5);
	gridLayout	= new QGridLayout(NumFields, 3, 3);
	
	for(i = 0; i < (int)NumFields; i++)
	{
		QLabel	*tmpLabel = newLabel((Field)i);
		gridLayout->addWidget(tmpLabel, i, 0);
	}
	
	mpegExecEdit = new QLineEdit(this);
	mpegExecBut = new QToolButton(this);
	mpegExecBut->setText("...");
	
	loadFramesSpin = new QSpinBox(1, 10000, 10, this);
	
	fileHistSpin = new QSpinBox(1, 16, 1, this);
	
	fpsCombo = new QComboBox(this);
	fpsCombo->setFixedHeight(mpegExecEdit->sizeHint().height());
	for(i = 0; i < (int)MainWindow::NumFPS; i++)
	{
		char buff[32];
		snprintf(buff, 32, "           %g           ", MainWindow::fpsVal[i]);
		fpsCombo->insertItem(buff);
	}
	
	okBut = new QPushButton("&ok", this);
	okBut->setDefault(true);
	cancelBut = new QPushButton("&cancel", this);
	
	//-- Connect -------------
	QObject::connect(okBut, SIGNAL(clicked()), this, SLOT(okPressed()) );
	QObject::connect(cancelBut, SIGNAL(clicked()), this, SLOT(cancelPressed()) );
	QObject::connect(mpegExecBut, SIGNAL(clicked()), this, SLOT(browseForMpeg()) );
	
	//-- Layout --------------
	topLayout->addLayout(gridLayout, 0);
		gridLayout->addWidget(mpegExecEdit,	 (int)MpegExec, 1);
		gridLayout->addWidget(mpegExecBut,	 (int)MpegExec, 2);
		gridLayout->addWidget(loadFramesSpin, (int)LoadFrames, 1);
		gridLayout->addWidget(fileHistSpin,	 (int)FileHist, 1);
		gridLayout->addWidget(fpsCombo,		 (int)FramesPerSec, 1);
	topLayout->addStretch(1);
	topLayout->addLayout(butLayout, 0);
		butLayout->addWidget(okBut, 0);
		butLayout->addStretch(1);
		butLayout->addWidget(cancelBut, 0);
	
	setCurrent();
	resize(350, 150);
}

FlipPreferences::~FlipPreferences()
{
}

//----------------------------------------------------------
QLabel	*FlipPreferences::newLabel(Field field)
{
	QLabel *tmpLabel;
	QString	text;
	
	switch(field)
	{
		case MpegExec:		text = "mpeg_encode executable : ";	break;
		case LoadFrames:	text = "default # frames to load : ";	break;
		case FileHist:		text = "# recent dirs : ";	break;
		case FramesPerSec:	text = "default fps : ";	break;
		default:			text = "ERROR";	break;
	}
	tmpLabel = new QLabel(this);
	tmpLabel->setAlignment(AlignVCenter | AlignRight);
	tmpLabel->setText(text);
	tmpLabel->setMinimumHeight(25);
	tmpLabel->setMinimumWidth(100);
	return tmpLabel;
}


//----------------------------------------------------------
void FlipPreferences::show()
{
	setCurrent();
	QDialog::show();
}

//----------------------------------------------------------
void FlipPreferences::exec()
{
	setCurrent();
	QDialog::exec();
}

//----------------------------------------------------------
void FlipPreferences::setCurrent()
{
	Config *cfg = Config::getInstance();
	
	mpegExecEdit->setText(cfg->mpegExec);
	loadFramesSpin->setValue(cfg->loadFrames);
	fileHistSpin->setValue(cfg->fileHist);
	fpsCombo->setCurrentItem((int)cfg->flipFPS);
}

//----------------------------------------------------------
void FlipPreferences::okPressed()
{
	Config *cfg = Config::getInstance();
	
	cfg->mpegExec = mpegExecEdit->text();
	if(!Config::hasMpeg())
	{
		char buffer[512];
		snprintf(buffer, 512, "WARNING:\n\"%s\"\nis not a valid executable.", (const char*)cfg->mpegExec);
		QMessageBox::warning(this, APP_NAME, buffer);
	}
	cfg->loadFrames = loadFramesSpin->value();
	cfg->fileHist = fileHistSpin->value();
	cfg->flipFPS = (MainWindow::FPS)fpsCombo->currentItem();
	
	Config::commit();
	
	accept();
}

//----------------------------------------------------------
void FlipPreferences::cancelPressed()
{
	reject();
}

//----------------------------------------------------------
void FlipPreferences::browseForMpeg()
{
	QString fileName;
	fileName = QFileDialog::getSaveFileName(mpegExecEdit->text(), "mpeg_encode", this);
	if(!fileName.isEmpty())
		mpegExecEdit->setText(fileName);
}