/* 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */

#include "ultima/ultima4/gfx/image.h"
#include "ultima/ultima4/gfx/imagemgr.h"
#include "ultima/ultima4/core/settings.h"
#include "ultima/ultima4/views/view.h"

namespace Ultima {
namespace Ultima4 {

Image *View::_screen = nullptr;

View::View(int x, int y, int width, int height) :
		_bounds(Common::Rect(x, y, x + width, y + height)),
		_highlighted(false) {
	if (_screen == nullptr)
		_screen = imageMgr->get("screen")->_image;
}

void View::reinit() {
	_screen = imageMgr->get("screen")->_image;
}

void View::clear() {
	unhighlight();
	_screen->fillRect(
		SCALED(_bounds.left), SCALED(_bounds.top),
		SCALED(_bounds.width()), SCALED(_bounds.height()), 0, 0, 0);
}

void View::update() {
	if (_highlighted)
		drawHighlighted();
#ifdef IOS_ULTIMA4
	U4IOS::updateView();
#endif
}

void View::update(int x, int y, int width, int height) {
	if (_highlighted)
		drawHighlighted();
#ifdef IOS_ULTIMA4
	U4IOS::updateRectInView(x, y, width, height);
#endif
}

void View::highlight(int x, int y, int width, int height) {
	_highlighted = true;
	_highlightBounds = Common::Rect(x, y, x + width, y + height);

	update(x, y, width, height);
}

void View::unhighlight() {
	_highlighted = false;
	update(_highlightBounds.left, _highlightBounds.top,
		_highlightBounds.width(), _highlightBounds.height());
	_highlightBounds = Common::Rect();
}

void View::drawHighlighted() {
	Image *screen = imageMgr->get("screen")->_image;

	Image *tmp = Image::create(SCALED(_highlightBounds.width()),
		SCALED(_highlightBounds.height()), screen->format());
	if (!tmp)
		return;

	screen->drawSubRectOn(tmp, 0, 0,
		SCALED(_bounds.left + _highlightBounds.left),
		SCALED(_bounds.top + _highlightBounds.top),
		SCALED(_highlightBounds.width()),
		SCALED(_highlightBounds.height()));
	tmp->drawHighlighted();
	tmp->draw(SCALED(_bounds.left + _highlightBounds.left), SCALED(_bounds.top + _highlightBounds.top));
	delete tmp;
}

} // End of namespace Ultima4
} // End of namespace Ultima