1 /* 2 * Copyright © 2013 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21 * IN THE SOFTWARE. 22 * 23 */ 24 25 #ifndef CHART_H 26 #define CHART_H 27 28 struct chart { 29 const char *name; 30 int x, y, w, h; 31 int num_samples; 32 int current_sample; 33 int range_automatic; 34 enum chart_mode { 35 CHART_STROKE = 0, 36 CHART_FILL, 37 CHART_FILL_STROKE, 38 } mode; 39 enum chart_smooth { 40 CHART_LINE = 0, 41 CHART_CURVE, 42 } smooth; 43 float fill_rgb[4]; 44 float stroke_rgb[4]; 45 double stroke_width; 46 double range[2]; 47 double *samples; 48 }; 49 50 int chart_init(struct chart *chart, const char *name, int num_samples); 51 void chart_set_mode(struct chart *chart, enum chart_mode mode); 52 void chart_set_smooth(struct chart *chart, enum chart_smooth smooth); 53 void chart_set_fill_rgba(struct chart *chart, float red, float green, float blue, float alpha); 54 void chart_set_stroke_width(struct chart *chart, float width); 55 void chart_set_stroke_rgba(struct chart *chart, float red, float green, float blue, float alpha); 56 void chart_set_position(struct chart *chart, int x, int y); 57 void chart_set_size(struct chart *chart, int w, int h); 58 void chart_set_range(struct chart *chart, double min, double max); 59 void chart_add_sample(struct chart *chart, double value); 60 void chart_draw(struct chart *chart, cairo_t *cr); 61 void chart_fini(struct chart *chart); 62 63 void chart_get_range(struct chart *chart, double *range); 64 65 #endif /* CHART_H */ 66