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/* 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.
*
* MIT License:
*
* Copyright (c) 2016 Borja Lorente
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
*/

#ifndef GRAPHICS_MACGUI_MACWINDOWBORDER_H
#define GRAPHICS_MACGUI_MACWINDOWBORDER_H

#include "common/str.h"
#include "common/list.h"

#include "graphics/nine_patch.h"
#include "graphics/managed_surface.h"
#include "graphics/transparent_surface.h"

namespace Graphics {

enum MacBorderOffset {
	kBorderOffsetLeft = 0,
	kBorderOffsetRight = 1,
	kBorderOffsetTop = 2,
	kBorderOffsetBottom	= 3
};

/**
 * A representation of a custom border, which allows for arbitrary border offsets
 * and nine-patch resizable displays for both active and inactive states.
 * However, the border offsets are the same for both active and inactive states.
 */
class MacWindowBorder {
public:
	MacWindowBorder();
	~MacWindowBorder();

	/**
	 * Accessor to check whether or not a border is loaded.
	 * @param active State that we want to check. If true it checks for active border, if false it checks for inactive.
	 * @return True if the checked state has a border loaded, false otherwise.
	 */
	bool hasBorder(bool active);

	/**
	 * Add the given surface as the display of the border in the active state.
	 * Will fail if there is already an active border.
	 * @param The surface that will be displayed.
	 */
	void addActiveBorder(TransparentSurface &source);

	/**
	 * Add the given surface as the display of the border in the inactive state.
	 * Will fail if there is already an inactive border.
	 * @param The surface that will be displayed.
	 */
	void addInactiveBorder(TransparentSurface &source);

	/**
	 * Accessor function for the custom offsets.
	 * @return True if custom offsets have been indicated (setOffsets has been called previously).
	 */
	bool hasOffsets();

	/**
	 * Mutator method to indicate the custom border offsets.
	 * These should be set to the desired thickness of each side of the border.
	 * e.g. For a border that is 10 pixels wide and 5 pixels tall, the call should be:
	 * setOffsets(10, 10, 5, 5)
	 * Note that this function does not check whether those borders form
	 * a valid rect when combined with the window dimensions.
	 * @param left Thickness (in pixels) of the left side of the border.
	 * @param right Thickness (in pixels) of the right side of the border.
	 * @param top Thickness (in pixels) of the top side of the border.
	 * @param bottom Thickness (in pixels) of the bottom side of the border.
	 */
	void setOffsets(int left, int right, int top, int bottom);

	/**
	 * Accessor method to retrieve a given border.
	 * Note that it does not check for validity, and thus if setOffsets
	 * was not called before it might return garbage.
	 * @param offset The identifier of the offset wanted.
	 * @return The desired offset in pixels.
	 */
	int getOffset(MacBorderOffset offset);

	/**
	 * Blit the desired border (active or inactive) into a destination surface.
	 * It automatically resizes the border to fit the given surface.
	 * @param destination The surface we want to blit into.
	 * @param active True if we want to blit the active border, false otherwise.
	 */
	void blitBorderInto(ManagedSurface &destination, bool active);

private:

	NinePatchBitmap *_activeBorder;
	NinePatchBitmap *_inactiveBorder;

	bool _activeInitialized;
	bool _inactiveInitialized;

	bool _hasOffsets;
	int _borderOffsets[4];

};

} // End of namespace Graphics
#endif