/* 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.
 *
 * $URL: https://scummvm.svn.sourceforge.net/svnroot/scummvm/scummvm/tags/release-1-2-1/gui/Tooltip.cpp $
 * $Id: Tooltip.cpp 51217 2010-07-23 19:36:47Z sev $
 */

#include "common/util.h"
#include "graphics/fontman.h"
#include "gui/widget.h"
#include "gui/dialog.h"
#include "gui/GuiManager.h"

#include "gui/Tooltip.h"
#include "gui/ThemeEval.h"

namespace GUI {


Tooltip::Tooltip() : 
	Dialog(-1, -1, -1, -1), _maxWidth(-1) {

	_backgroundType = GUI::ThemeEngine::kDialogBackgroundTooltip;
}

void Tooltip::mustClose() {
	if (isVisible())
		Dialog::close();
}

bool Tooltip::tooltipModal(int x, int y) {
	Widget *wdg;

	if (!g_gui.getTopDialog())
		return false;

	wdg = g_gui.getTopDialog()->findWidget(x, y);

	if (!wdg || !wdg->getTooltip())
		return false;

	if (_maxWidth == -1) {
		_maxWidth = g_gui.xmlEval()->getVar("Globals.Tooltip.MaxWidth", 100);
		_xdelta = g_gui.xmlEval()->getVar("Globals.Tooltip.XDelta", 0);
		_ydelta = g_gui.xmlEval()->getVar("Globals.Tooltip.YDelta", 0);
	}

	const Graphics::Font *tooltipFont = g_gui.theme()->getFont(ThemeEngine::kFontStyleTooltip);

	_wrappedLines.clear();
	_w = tooltipFont->wordWrapText(wdg->getTooltip(), _maxWidth - 4, _wrappedLines);
	_h = (tooltipFont->getFontHeight() + 2) * _wrappedLines.size();

	_x = MIN<int16>(g_gui.getTopDialog()->_x + x + _xdelta, g_gui.getWidth() - _w - 3);
	_y = MIN<int16>(g_gui.getTopDialog()->_y + y + _ydelta, g_gui.getHeight() - _h - 3); 

	open();
	g_gui.runLoop();

	return true;
}

void Tooltip::drawDialog() {
	int num = 0;
	int h = g_gui.theme()->getFontHeight(ThemeEngine::kFontStyleTooltip) + 2;

	Dialog::drawDialog();

	for (Common::StringArray::const_iterator i = _wrappedLines.begin(); i != _wrappedLines.end(); ++i, ++num) {
		g_gui.theme()->drawText(
			Common::Rect(_x + 1, _y + 1 + num * h, _x + 1 +_w, _y + 1+ (num + 1) * h), *i, 
			ThemeEngine::kStateEnabled, 
			Graphics::kTextAlignLeft, 
			ThemeEngine::kTextInversionNone, 
			0,
			false, 
			ThemeEngine::kFontStyleTooltip, 
			ThemeEngine::kFontColorNormal, 
			false
		);
	}
}

}
