49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
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/***************************************************************************
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matrix.h
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(c) 2000-2007 Benoit Minisini <gambas@users.sourceforge.net>
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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 1, or (at your option)
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any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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***************************************************************************/
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#ifndef __MATRIX_H
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#define __MATRIX_H
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#include "gb_common.h"
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#include "gb.draw.h"
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typedef
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GB_MATRIX
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MATRIX;
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void MATRIX_init(MATRIX *matrix);
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void MATRIX_reset(MATRIX *matrix);
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void MATRIX_translate(MATRIX *matrix, double dx, double dy);
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void MATRIX_scale(MATRIX *matrix, double sx, double sy);
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void MATRIX_rotate(MATRIX *matrix, double angle);
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void MATRIX_map_point(MATRIX *matrix, int *x, int *y);
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void MATRIX_map_rect(MATRIX *matrix, int *x, int *y, int *w, int *h);
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int *MATRIX_map_array(MATRIX *matrix, int *coord, int npoint);
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void MATRIX_free_array(int **coord);
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#define MATRIX_is_identity(_matrix) ((_matrix)->identity)
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#endif
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