/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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.
 *
 */

/*
 * This file is based on WME Lite.
 * http://dead-code.org/redir.php?target=wmelite
 * Copyright (c) 2011 Jan Nedoma
 */

#include "engines/wintermute/dcgf.h"
#include "engines/wintermute/UI/UITiledImage.h"
#include "engines/wintermute/Base/BSurface.h"
#include "engines/wintermute/Base/BDynBuffer.h"
#include "engines/wintermute/Base/BParser.h"
#include "engines/wintermute/Base/BGame.h"
#include "engines/wintermute/Base/BSubFrame.h"
#include "engines/wintermute/Base/BFileManager.h"
#include "engines/wintermute/PlatformSDL.h"

namespace WinterMute {

IMPLEMENT_PERSISTENT(CUITiledImage, false)

//////////////////////////////////////////////////////////////////////////
CUITiledImage::CUITiledImage(CBGame *inGame): CBObject(inGame) {
	_image = NULL;

	CBPlatform::setRectEmpty(&_upLeft);
	CBPlatform::setRectEmpty(&_upMiddle);
	CBPlatform::setRectEmpty(&_upRight);
	CBPlatform::setRectEmpty(&_middleLeft);
	CBPlatform::setRectEmpty(&_middleMiddle);
	CBPlatform::setRectEmpty(&_middleRight);
	CBPlatform::setRectEmpty(&_downLeft);
	CBPlatform::setRectEmpty(&_downMiddle);
	CBPlatform::setRectEmpty(&_downRight);
}


//////////////////////////////////////////////////////////////////////////
CUITiledImage::~CUITiledImage() {
	delete _image;
	_image = NULL;
}


//////////////////////////////////////////////////////////////////////////
ERRORCODE CUITiledImage::display(int x, int y, int width, int height) {
	if (!_image) return STATUS_FAILED;

	int tileWidth = _middleMiddle.right - _middleMiddle.left;
	int tileHeight = _middleMiddle.bottom - _middleMiddle.top;

	int nuColumns = (width - (_middleLeft.right - _middleLeft.left) - (_middleRight.right - _middleRight.left)) / tileWidth;
	int nuRows = (height - (_upMiddle.bottom - _upMiddle.top) - (_downMiddle.bottom - _downMiddle.top)) / tileHeight;

	int col, row;

	Game->_renderer->startSpriteBatch();

	// top left/right
	_image->_surface->displayTrans(x,                                                       y, _upLeft);
	_image->_surface->displayTrans(x + (_upLeft.right - _upLeft.left) + nuColumns * tileWidth, y, _upRight);

	// bottom left/right
	_image->_surface->displayTrans(x,                                                       y + (_upMiddle.bottom - _upMiddle.top) + nuRows * tileHeight, _downLeft);
	_image->_surface->displayTrans(x + (_upLeft.right - _upLeft.left) + nuColumns * tileWidth, y + (_upMiddle.bottom - _upMiddle.top) + nuRows * tileHeight, _downRight);

	// left/right
	int yyy = y + (_upMiddle.bottom - _upMiddle.top);
	for (row = 0; row < nuRows; row++) {
		_image->_surface->displayTrans(x,                                                       yyy, _middleLeft);
		_image->_surface->displayTrans(x + (_middleLeft.right - _middleLeft.left) + nuColumns * tileWidth, yyy, _middleRight);
		yyy += tileWidth;
	}

	// top/bottom
	int xxx = x + (_upLeft.right - _upLeft.left);
	for (col = 0; col < nuColumns; col++) {
		_image->_surface->displayTrans(xxx, y, _upMiddle);
		_image->_surface->displayTrans(xxx, y + (_upMiddle.bottom - _upMiddle.top) + nuRows * tileHeight, _downMiddle);
		xxx += tileWidth;
	}

	// tiles
	yyy = y + (_upMiddle.bottom - _upMiddle.top);
	for (row = 0; row < nuRows; row++) {
		xxx = x + (_upLeft.right - _upLeft.left);
		for (col = 0; col < nuColumns; col++) {
			_image->_surface->displayTrans(xxx, yyy, _middleMiddle);
			xxx += tileWidth;
		}
		yyy += tileWidth;
	}

	Game->_renderer->endSpriteBatch();

	return STATUS_OK;
}


//////////////////////////////////////////////////////////////////////////
ERRORCODE CUITiledImage::loadFile(const char *filename) {
	byte *buffer = Game->_fileManager->readWholeFile(filename);
	if (buffer == NULL) {
		Game->LOG(0, "CUITiledImage::LoadFile failed for file '%s'", filename);
		return STATUS_FAILED;
	}

	ERRORCODE ret;

	_filename = new char [strlen(filename) + 1];
	strcpy(_filename, filename);

	if (DID_FAIL(ret = loadBuffer(buffer, true))) Game->LOG(0, "Error parsing TILED_IMAGE file '%s'", filename);


	delete [] buffer;

	return ret;
}


TOKEN_DEF_START
TOKEN_DEF(TILED_IMAGE)
TOKEN_DEF(TEMPLATE)
TOKEN_DEF(IMAGE)
TOKEN_DEF(UP_LEFT)
TOKEN_DEF(UP_RIGHT)
TOKEN_DEF(UP_MIDDLE)
TOKEN_DEF(DOWN_LEFT)
TOKEN_DEF(DOWN_RIGHT)
TOKEN_DEF(DOWN_MIDDLE)
TOKEN_DEF(MIDDLE_LEFT)
TOKEN_DEF(MIDDLE_RIGHT)
TOKEN_DEF(MIDDLE_MIDDLE)
TOKEN_DEF(VERTICAL_TILES)
TOKEN_DEF(HORIZONTAL_TILES)
TOKEN_DEF(EDITOR_PROPERTY)
TOKEN_DEF_END
//////////////////////////////////////////////////////////////////////////
ERRORCODE CUITiledImage::loadBuffer(byte *buffer, bool complete) {
	TOKEN_TABLE_START(commands)
	TOKEN_TABLE(TILED_IMAGE)
	TOKEN_TABLE(TEMPLATE)
	TOKEN_TABLE(IMAGE)
	TOKEN_TABLE(UP_LEFT)
	TOKEN_TABLE(UP_RIGHT)
	TOKEN_TABLE(UP_MIDDLE)
	TOKEN_TABLE(DOWN_LEFT)
	TOKEN_TABLE(DOWN_RIGHT)
	TOKEN_TABLE(DOWN_MIDDLE)
	TOKEN_TABLE(MIDDLE_LEFT)
	TOKEN_TABLE(MIDDLE_RIGHT)
	TOKEN_TABLE(MIDDLE_MIDDLE)
	TOKEN_TABLE(VERTICAL_TILES)
	TOKEN_TABLE(HORIZONTAL_TILES)
	TOKEN_TABLE(EDITOR_PROPERTY)
	TOKEN_TABLE_END

	byte *params;
	int cmd;
	CBParser parser(Game);
	bool hTiles = false, vTiles = false;
	int h1 = 0, h2 = 0, h3 = 0;
	int v1 = 0, v2 = 0, v3 = 0;

	if (complete) {
		if (parser.getCommand((char **)&buffer, commands, (char **)&params) != TOKEN_TILED_IMAGE) {
			Game->LOG(0, "'TILED_IMAGE' keyword expected.");
			return STATUS_FAILED;
		}
		buffer = params;
	}

	while ((cmd = parser.getCommand((char **)&buffer, commands, (char **)&params)) > 0) {
		switch (cmd) {
		case TOKEN_TEMPLATE:
			if (DID_FAIL(loadFile((char *)params))) cmd = PARSERR_GENERIC;
			break;

		case TOKEN_IMAGE:
			delete _image;
			_image = new CBSubFrame(Game);
			if (!_image || DID_FAIL(_image->setSurface((char *)params))) {
				delete _image;
				_image = NULL;
				cmd = PARSERR_GENERIC;
			}
			break;

		case TOKEN_UP_LEFT:
			parser.scanStr((char *)params, "%d,%d,%d,%d", &_upLeft.left, &_upLeft.top, &_upLeft.right, &_upLeft.bottom);
			break;

		case TOKEN_UP_RIGHT:
			parser.scanStr((char *)params, "%d,%d,%d,%d", &_upRight.left, &_upRight.top, &_upRight.right, &_upRight.bottom);
			break;

		case TOKEN_UP_MIDDLE:
			parser.scanStr((char *)params, "%d,%d,%d,%d", &_upMiddle.left, &_upMiddle.top, &_upMiddle.right, &_upMiddle.bottom);
			break;

		case TOKEN_DOWN_LEFT:
			parser.scanStr((char *)params, "%d,%d,%d,%d", &_downLeft.left, &_downLeft.top, &_downLeft.right, &_downLeft.bottom);
			break;

		case TOKEN_DOWN_RIGHT:
			parser.scanStr((char *)params, "%d,%d,%d,%d", &_downRight.left, &_downRight.top, &_downRight.right, &_downRight.bottom);
			break;

		case TOKEN_DOWN_MIDDLE:
			parser.scanStr((char *)params, "%d,%d,%d,%d", &_downMiddle.left, &_downMiddle.top, &_downMiddle.right, &_downMiddle.bottom);
			break;

		case TOKEN_MIDDLE_LEFT:
			parser.scanStr((char *)params, "%d,%d,%d,%d", &_middleLeft.left, &_middleLeft.top, &_middleLeft.right, &_middleLeft.bottom);
			break;

		case TOKEN_MIDDLE_RIGHT:
			parser.scanStr((char *)params, "%d,%d,%d,%d", &_middleRight.left, &_middleRight.top, &_middleRight.right, &_middleRight.bottom);
			break;

		case TOKEN_MIDDLE_MIDDLE:
			parser.scanStr((char *)params, "%d,%d,%d,%d", &_middleMiddle.left, &_middleMiddle.top, &_middleMiddle.right, &_middleMiddle.bottom);
			break;

		case TOKEN_HORIZONTAL_TILES:
			parser.scanStr((char *)params, "%d,%d,%d", &h1, &h2, &h3);
			hTiles = true;
			break;

		case TOKEN_VERTICAL_TILES:
			parser.scanStr((char *)params, "%d,%d,%d", &v1, &v2, &v3);
			vTiles = true;
			break;

		case TOKEN_EDITOR_PROPERTY:
			parseEditorProperty(params, false);
			break;
		}
	}
	if (cmd == PARSERR_TOKENNOTFOUND) {
		Game->LOG(0, "Syntax error in TILED_IMAGE definition");
		return STATUS_FAILED;
	}
	if (cmd == PARSERR_GENERIC) {
		Game->LOG(0, "Error loading TILED_IMAGE definition");
		return STATUS_FAILED;
	}

	if (vTiles && hTiles) {
		// up row
		CBPlatform::setRect(&_upLeft,   0,     0, h1,       v1);
		CBPlatform::setRect(&_upMiddle, h1,    0, h1 + h2,    v1);
		CBPlatform::setRect(&_upRight,  h1 + h2, 0, h1 + h2 + h3, v1);

		// middle row
		CBPlatform::setRect(&_middleLeft,   0,     v1, h1,       v1 + v2);
		CBPlatform::setRect(&_middleMiddle, h1,    v1, h1 + h2,    v1 + v2);
		CBPlatform::setRect(&_middleRight,  h1 + h2, v1, h1 + h2 + h3, v1 + v2);

		// down row
		CBPlatform::setRect(&_downLeft,   0,     v1 + v2, h1,       v1 + v2 + v3);
		CBPlatform::setRect(&_downMiddle, h1,    v1 + v2, h1 + h2,    v1 + v2 + v3);
		CBPlatform::setRect(&_downRight,  h1 + h2, v1 + v2, h1 + h2 + h3, v1 + v2 + v3);
	}

	// default
	if (_image && _image->_surface) {
		int width = _image->_surface->getWidth() / 3;
		int height = _image->_surface->getHeight() / 3;

		if (CBPlatform::isRectEmpty(&_upLeft))   CBPlatform::setRect(&_upLeft,   0,       0, width,   height);
		if (CBPlatform::isRectEmpty(&_upMiddle)) CBPlatform::setRect(&_upMiddle, width,   0, 2 * width, height);
		if (CBPlatform::isRectEmpty(&_upRight))  CBPlatform::setRect(&_upRight,  2 * width, 0, 3 * width, height);

		if (CBPlatform::isRectEmpty(&_middleLeft))   CBPlatform::setRect(&_middleLeft,   0,       height, width,   2 * height);
		if (CBPlatform::isRectEmpty(&_middleMiddle)) CBPlatform::setRect(&_middleMiddle, width,   height, 2 * width, 2 * height);
		if (CBPlatform::isRectEmpty(&_middleRight))  CBPlatform::setRect(&_middleRight,  2 * width, height, 3 * width, 2 * height);

		if (CBPlatform::isRectEmpty(&_downLeft))   CBPlatform::setRect(&_downLeft,   0,       2 * height, width,   3 * height);
		if (CBPlatform::isRectEmpty(&_downMiddle)) CBPlatform::setRect(&_downMiddle, width,   2 * height, 2 * width, 3 * height);
		if (CBPlatform::isRectEmpty(&_downRight))  CBPlatform::setRect(&_downRight,  2 * width, 2 * height, 3 * width, 3 * height);
	}

	return STATUS_OK;
}

//////////////////////////////////////////////////////////////////////////
ERRORCODE CUITiledImage::saveAsText(CBDynBuffer *buffer, int indent) {
	buffer->putTextIndent(indent, "TILED_IMAGE\n");
	buffer->putTextIndent(indent, "{\n");

	if (_image && _image->_surfaceFilename)
		buffer->putTextIndent(indent + 2, "IMAGE=\"%s\"\n", _image->_surfaceFilename);

	int h1, h2, h3;
	int v1, v2, v3;

	h1 = _upLeft.right;
	h2 = _upMiddle.right - _upMiddle.left;
	h3 = _upRight.right - _upRight.left;

	v1 = _upLeft.bottom;
	v2 = _middleLeft.bottom - _middleLeft.top;
	v3 = _downLeft.bottom - _downLeft.top;


	buffer->putTextIndent(indent + 2, "VERTICAL_TILES { %d, %d, %d }\n", v1, v2, v3);
	buffer->putTextIndent(indent + 2, "HORIZONTAL_TILES { %d, %d, %d }\n", h1, h2, h3);

	// editor properties
	CBBase::saveAsText(buffer, indent + 2);

	buffer->putTextIndent(indent, "}\n");
	return STATUS_OK;
}

//////////////////////////////////////////////////////////////////////////
void CUITiledImage::correctSize(int *width, int *height) {
	int tileWidth = _middleMiddle.right - _middleMiddle.left;
	int tileHeight = _middleMiddle.bottom - _middleMiddle.top;

	int nuColumns = (*width - (_middleLeft.right - _middleLeft.left) - (_middleRight.right - _middleRight.left)) / tileWidth;
	int nuRows = (*height - (_upMiddle.bottom - _upMiddle.top) - (_downMiddle.bottom - _downMiddle.top)) / tileHeight;

	*width  = (_middleLeft.right - _middleLeft.left) + (_middleRight.right - _middleRight.left) + nuColumns * tileWidth;
	*height = (_upMiddle.bottom - _upMiddle.top) + (_downMiddle.bottom - _downMiddle.top) + nuRows * tileHeight;
}


//////////////////////////////////////////////////////////////////////////
ERRORCODE CUITiledImage::persist(CBPersistMgr *persistMgr) {
	CBObject::persist(persistMgr);

	persistMgr->transfer(TMEMBER(_downLeft));
	persistMgr->transfer(TMEMBER(_downMiddle));
	persistMgr->transfer(TMEMBER(_downRight));
	persistMgr->transfer(TMEMBER(_image));
	persistMgr->transfer(TMEMBER(_middleLeft));
	persistMgr->transfer(TMEMBER(_middleMiddle));
	persistMgr->transfer(TMEMBER(_middleRight));
	persistMgr->transfer(TMEMBER(_upLeft));
	persistMgr->transfer(TMEMBER(_upMiddle));
	persistMgr->transfer(TMEMBER(_upRight));

	return STATUS_OK;
}

} // end of namespace WinterMute