2017-10-10 00:17:58 +08:00
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/*
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* File : dc_trans.h
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* This file is part of RT-Thread GUI Engine
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* COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Change Logs:
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* Date Author Notes
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* 2010-04-10 Bernard first version
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*/
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2016-02-08 09:59:48 +08:00
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#ifndef __RTGUI_DC_TRANS_H__
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#define __RTGUI_DC_TRANS_H__
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#include <rtgui/dc.h>
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#include <rtgui/matrix.h>
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struct rtgui_dc_trans;
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/** Create a dc translator on the dc @owner
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*
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* @return RT_NULL is there is no memory.
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*/
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struct rtgui_dc_trans* rtgui_dc_trans_create(struct rtgui_dc *owner);
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/** Rotate the dc clockwise.
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*
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* @param degree the degree to rotate.
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*/
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void rtgui_dc_trans_rotate(struct rtgui_dc_trans *dct, double degree);
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void rtgui_dc_trans_set_aa(struct rtgui_dc_trans *dct, int use_aa);
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void rtgui_dc_trans_scale(struct rtgui_dc_trans *dct, double sx, double sy);
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/** Move the dc
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*
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* The unit of @dx and @dy is pixel.
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*/
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void rtgui_dc_trans_move(struct rtgui_dc_trans *dct, int dx, int dy);
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void rtgui_dc_trans_get_new_wh(struct rtgui_dc_trans *dct, int *new_w, int *new_h);
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void rtgui_dc_trans_blit(struct rtgui_dc_trans *dct,
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struct rtgui_point *dc_point,
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struct rtgui_dc *dest,
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struct rtgui_rect *rect);
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void rtgui_dc_trans_destroy(struct rtgui_dc_trans *dct);
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#endif
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