/*

 *  qlo10k1 - GUI frontend for ld10k1

 *

 *  Copyright (c) 2004 by Peter Zubaj

 *

 *   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 <qfiledialog.h>

#include <qmessagebox.h>

#include <qpopupmenu.h>

#include "app_global.h"

#include "routingwidget.h"

#include "structure_io.h"

#include "structure_link.h"

#include "newiodialog.h"

#include "loadpatchdialog.h"

#include "transformpatchdialog.h"

extern QString gLastFileDir;

RSItemBaseWithType *RoutingWidget::createNewIO(EditMode em)

{

	// show io dialog

	NewIODlg::DlgType t = NewIODlg::FX;

	switch (em)

	{

		case FX:

			t = NewIODlg::FX;

			break;

		case In:

			t = NewIODlg::In;

			break;

		case Out:

			t = NewIODlg::Out;

			break;

		default:

			break;

	}

	NewIODlg d(structure, t);

	int err;

	err = d.init();

	if(err < 0)

	{

		QMessageBox::critical(0, APP_NAME, QString("Error creating new IO dialog\n(ld10k1 error:%1)").arg(structure->errorStr(err)));

		return NULL;

	}

	if (d.exec() ==  QDialog::Accepted)

		return d.getNewIO();

	else

		return NULL;

}

RSItemBaseWithType *RoutingWidget::createNewPatch()

{

	QFileDialog *fd = new QFileDialog(this, "file dialog", TRUE);

	fd->setMode(QFileDialog::ExistingFile);

	QStringList filterlist;

	filterlist << QString( "as10k1 Patch files (*.bin *.as10k1 *.emu10k1)" );

	filterlist << QString( "ld10k1 Native effect files (*.ld10k1)" );

	filterlist << QString( "All Files (*)" );

	QString filters = filterlist.join( ";;" );

	fd->setFilters( filters );

	fd->setDir(gLastFileDir);

	fd->setCaption("Load patch");

	StrPatch *loaded = NULL;

	int err;

	QString fileName;

	if ( fd->exec() == QDialog::Accepted )

	{

        	fileName = fd->selectedFile();

		gLastFileDir = fd->dirPath();

		delete fd;

		LD10k1File *ldfile = NULL;

		if ((err = LD10k1File::LoadFromFile(fileName, &ldfile)) < 0) 

		{

			EMU10k1File *emufile = NULL;

			if ((err = EMU10k1File::LoadFromFile(fileName, &emufile)) < 0) 

			{

				QMessageBox::critical(0, APP_NAME, QString("Couldn't load patch\n(ld10k1 error:%1)").arg(structure->errorStr(err)));

				return NULL;

			}

			else

			{

				TransformPatchDlg d(fileName, emufile);

				if (d.exec() == QDialog::Accepted)

				{

					if ((err = d.transformFile(&ldfile)) < 0)

					{

						QMessageBox::critical(0, APP_NAME, QString("Couldn't transform patch\n(ld10k1 error:%1)").arg(structure->errorStr(err)));

						delete emufile;

						return NULL;

					}

					delete emufile;

				}

				else

				{

					delete emufile;

					return NULL;

				}

			}

		}

		LoadPatchDlg d(structure, fileName, ldfile);

		if (d.exec() == QDialog::Accepted)

		{

			// and now convert to loader

			StrPatch *loaded = NULL;

			if ((err = structure->load(ldfile, d.whereLoad(), &loaded)) < 0) {

				QMessageBox::critical(0, APP_NAME, QString("Couldn't load patch\n(ld10k1 error:%1)").arg(structure->errorStr(err)));

				delete ldfile;

				return NULL;

			}

			else

			{

				loaded->calcSize();

				loaded->updateContents(this->drawing, getZoomLevel());

			}

		}

		delete ldfile;		

	}

	return loaded;

}

void RoutingWidget::startLinkDrag(int xp, int yp)

{

	// find patch under - only on patch can start drag

	RSItemBaseWithType *item = NULL;

	for(item = structure->UsedItems.first(); item; item = structure->UsedItems.next())

	{

		if (item->containsPoint(xp, yp) && item->type() == RSItemBaseWithType::Patch)

		{

			// I have patch - find io

			RSItemIO *pio = ((StrPatch *)item)->getIOAtPoint(xp, yp);

			if (pio)

			{

				drawing->startLinkDrag(pio, xp, yp);

				return;

			}

		}

	}

}

void RoutingDrawWidget::connectLinkDrag(int xp, int yp, int mxp, int myp)

{

	RoutingWidget *parent = (RoutingWidget *)parentWidget();

	StrGlobal *structure = parent->getStructure();

	if (!structure)

		return;

	RSItemBaseWithType *item = NULL;

	for(item = structure->UsedItems.first(); item; item = structure->UsedItems.next())

	{

		if (item->containsPoint(xp, yp))

		{

			// I have patch - find io

			RSItemIO *pio = NULL;

			if (item->type() == RSItemBaseWithType::Patch)

				pio = ((StrPatch *)item)->getIOAtPoint(xp, yp);

			else if (item->type() == RSItemBaseWithType::In)

				pio = ((StrInput *)item)->getIO(true, 0);

			else if (item->type() == RSItemBaseWithType::Out)

				pio = ((StrInput *)item)->getIO(false, 0);

			else if (item->type() == RSItemBaseWithType::FX)

				pio = ((StrFX *)item)->getIO(true, 0);

			if (pio)

			{

				// check if connecting in to out or out to in

				if (pio->isOutput() != linkStart->isOutput())

				{

					if (pio->getConnectedTo() == linkStart->getConnectedTo() && pio->getConnectedTo() && linkStart->getConnectedTo())

						return;

					if (pio->getOwner() == linkStart->getOwner())

						return;

					QPopupMenu *contextMenu = new QPopupMenu();

					enum Action {Normal, SimpleMulti, Simple, Multi};

					contextMenu->insertItem(tr("&Normal"), Normal);

					contextMenu->insertItem(tr("&Multi"), Multi);

					if (((RSItemBaseWithType *)pio->getOwner())->type() == RSItemBaseWithType::Patch)

						contextMenu->insertItem(tr("S&imple"), Simple);

					contextMenu->insertItem(tr("&Simple + Multi"), SimpleMulti);

					int id  = contextMenu->exec(QPoint(mxp, myp));

					if (id < 0)

						return;

					int conn_id;

					int err;

					QValueList <int> actIds;

					actIds.clear();

					StrLink *linkTo = pio->getConnectedTo();

					if (linkTo && actIds.findIndex(linkTo->id()) < 0)

						actIds.append(linkTo->id());

					StrLink *linkFrom = linkStart->getConnectedTo();

					if (linkFrom && actIds.findIndex(linkFrom->id()) < 0)

						actIds.append(linkFrom->id());

					if (id == Normal && linkTo && ((RSItemBaseWithType *)pio->getOwner())->type() != RSItemBaseWithType::Patch)

					{

						if ((err = structure->deleteOneLink(linkTo)) < 0)

							QMessageBox::critical(0, APP_NAME, QString("Couldn't disconnect !\n(ld10k1 error:%1)").arg(structure->errorStr(err)));

					}

					if ((err = structure->conAdd(id != Simple && id != Normal,

						 id != Multi && id != Normal,

						 linkStart, pio, &conn_id)) < 0)

						 QMessageBox::critical(0, APP_NAME, QString("Couldn't connect !\n(ld10k1 error:%1)").arg(structure->errorStr(err)));

					else

					{

						if (actIds.findIndex(conn_id) < 0)

							actIds.append(conn_id);

						if (linkFrom)

							linkFrom->updateContents(this, parent->getZoomLevel());

						if (linkTo)

							linkTo->updateContents(this, parent->getZoomLevel());

						for (unsigned int i = 0; i < actIds.count(); i++)

						{

							StrLink *link = NULL;

							int aid = actIds[i];

							if ((err = structure->actualizeLink(aid, &link)) < 0 && aid == conn_id)

								QMessageBox::critical(0, APP_NAME, QString("Couldn't actualize link !\n(ld10k1 error:%1)").arg(structure->errorStr(err)));

							if (link)

							{

								if (!link->isValid())

									structure->destroyLink(link);

								else

								{

									//wasn't error

									link->calcSize();

									link->updateContents(this, parent->getZoomLevel());

								}

							}							

						}

						stopLinkDrag();

						//parent->modeNormalClicked();

					}

					delete contextMenu;

					return;

				}

				return;

			}

		}

	}

}

void RoutingDrawWidget::deleteAllSelected()

{

	// through all selected

	RoutingWidget *parent = (RoutingWidget *)parentWidget();

	StrGlobal *structure = parent->getStructure();

	int err;

	if (!structure)

		return;

	if ((err = structure->deleteAllSelected()) < 0)

		QMessageBox::critical(0, APP_NAME, QString("Couldn't delete selected items !\n(ld10k1 error:%1)").arg(structure->errorStr(err)));

	this->updateContents();

}