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44 lines
923 B
C
44 lines
923 B
C
/*
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* gfx/diff.h - Schematics difference
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*
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* Written 2016 by Werner Almesberger
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* Copyright 2016 by Werner Almesberger
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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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#ifndef GFX_DIFF_H
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#define GFX_DIFF_H
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#include <stdint.h>
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#include <cairo/cairo.h>
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#include "gfx/gfx.h"
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#include "gfx/cro.h"
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extern const struct gfx_ops diff_ops;
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struct area {
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int xa, ya, xb, yb;
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uint32_t color;
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struct area *next;
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};
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void add_area(struct area **areas, int xa, int ya, int xb, int yb,
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uint32_t color);
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void free_areas(struct area **areas);
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void diff_to_canvas(cairo_t *cr, int cx, int cy, float scale,
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struct cro_ctx *old, struct cro_ctx *new,
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const struct area *areas);
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#endif /* !GFX_DIFF_H */
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