4 * This file is part of BeRTOS.
6 * Bertos is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * As a special exception, you may use this file as part of a free software
21 * library without restriction. Specifically, if other files instantiate
22 * templates or use macros or inline functions from this file, or you compile
23 * this file and link it with other files to produce an executable, this
24 * file does not by itself cause the resulting executable to be covered by
25 * the GNU General Public License. This exception does not however
26 * invalidate any other reasons why the executable file might be covered by
27 * the GNU General Public License.
29 * Copyright 2004 Develer S.r.l. (http://www.develer.com/)
30 * Copyright 1999, 2000, 2001, 2003 Bernardo Innocenti <bernie@develer.com>
34 * \brief Simple charts on top of mware/gfx routines (implementation).
39 * bm = chart_init(0, ymax, N_POINTS_CURVE, ymin);
41 * chart_drawCurve(bm, curve_y, curve_points + 1);
42 * gfx_setViewRect(bm, xmin, ymax, xmax, ymin);
43 * chart_drawDots(bm, samples_x, samples_y, samples_cnt);
49 * \author Bernardo Innocenti <bernie@develer.com>
54 *#* Revision 1.4 2006/07/19 12:56:26 bernie
55 *#* Convert to new Doxygen style.
57 *#* Revision 1.3 2005/11/27 23:33:29 bernie
60 *#* Revision 1.2 2005/11/04 18:17:45 bernie
61 *#* Fix header guards and includes for new location of gfx module.
63 *#* Revision 1.1 2005/11/04 18:11:35 bernie
64 *#* Move graphics stuff from mware/ to gfx/.
66 *#* Revision 1.7 2005/11/04 16:20:02 bernie
67 *#* Fix reference to README.devlib in header.
69 *#* Revision 1.6 2004/11/16 21:04:23 bernie
70 *#* Update to new naming scheme in mware/gfx.c.
72 *#* Revision 1.5 2004/09/14 20:56:39 bernie
73 *#* Make more generic and adapt to new gfx functions.
75 *#* Revision 1.3 2004/08/11 19:39:12 bernie
76 *#* Use chart_x_t and chart_y_t for the input dataset.
78 *#* Revision 1.1 2004/08/04 03:16:30 bernie
79 *#* Import simple chart drawing code.
87 #ifndef CONFIG_CHART_ARROWS
88 #define CONFIG_CHART_ARROWS 0
92 void chart_init(Bitmap *bm, coord_t xmin, coord_t ymin, coord_t xmax, coord_t ymax)
94 /* Clear the chart area */
95 gfx_rectClear(bm, xmin, ymin, xmax, ymax);
97 gfx_setClipRect(bm, xmin + CHART_BORDERLEFT, ymin + CHART_BORDERTOP,
98 xmax - CHART_BORDERRIGHT, ymax - CHART_BORDERBOTTOM);
104 void chart_setScale(Bitmap *bm, chart_x_t xmin, chart_y_t ymin, chart_x_t xmax, chart_y_t ymax)
106 gfx_setViewRect(bm, xmin, ymin, xmax, ymax);
111 * Draw the chart axes
113 void chart_drawAxis(Bitmap *bm)
115 #if CONFIG_CHART_ARROWS
118 gfx_moveTo(bm, bm->cr.xmin, bm->cr.ymin + 4);
119 gfx_lineTo(bm, bm->cr.xmin, bm->cr.ymax - 1);
120 gfx_lineTo(bm, bm->cr.xmax - 4 - 1, bm->cr.ymax - 1);
123 gfx_moveTo(bm, bm->cr.xmin - 2, bm->cr.ymin + 3);
124 gfx_lineTo(bm, bm->cr.xmin + 2, bm->cr.ymin + 3);
125 gfx_lineTo(bm, bm->cr.xmin, bm->cr.ymin);
126 gfx_lineTo(bm, bm->cr.xmin - 2, bm->cr.ymin + 3);
128 /* Draw right arrow */
129 gfx_moveTo(bm, bm->cr.xmax - 4, bm->cr.ymax - 3);
130 gfx_lineTo(bm, bm->cr.xmax - 4, bm->cr.ymax + 1);
131 gfx_lineTo(bm, bm->cr.xmax - 1, bm->cr.ymax - 1);
132 gfx_lineTo(bm, bm->cr.xmax - 4, bm->cr.ymax - 3);
134 #else /* CONFIG_CHART_ARROWS */
136 /* Draw a box around the chart */
137 gfx_rectDraw(bm, bm->cr.xmin, bm->cr.ymin, bm->cr.xmax, bm->cr.ymax);
139 #endif /* CONFIG_CHART_ARROWS */
141 //CHECK_WALL(wall_before_raster, WALL_SIZE);
142 //CHECK_WALL(wall_after_raster, WALL_SIZE);
147 * Draw a set of \a curve_cnt connected segments, whose Y coordinates
148 * are identified by the \a curve_y array and X-coordinates are
149 * are evenly spaced by one virtual unit.
151 void chart_drawCurve(Bitmap *bm, const chart_y_t *curve_y, int curve_cnt)
155 gfx_moveTo(bm, gfx_transformX(bm, 0), gfx_transformY(bm, curve_y[0]));
157 for (i = 1; i < curve_cnt; i++)
158 gfx_lineTo(bm, gfx_transformX(bm, i), gfx_transformY(bm, curve_y[i]));
160 //CHECK_WALL(wall_before_raster, WALL_SIZE);
161 //CHECK_WALL(wall_after_raster, WALL_SIZE);
166 * Disegna dei dot in corrispondenza delle coppie (dotsx[i];dotsy[i])
167 * Se dotsx e' NULL, i punti vengono disegnati ad intervalli regolari.
169 void chart_drawDots(Bitmap *bm, const chart_x_t *dots_x, const chart_y_t *dots_y, int cnt)
174 for (i = 0; i < cnt; i++)
177 x = gfx_transformX(bm, dots_x[i]);
179 x = gfx_transformX(bm, i);
181 y = gfx_transformY(bm, dots_y[i]);
183 /* Draw tick over the curve */
185 x - TICKS_WIDTH / 2, y - TICKS_HEIGHT / 2,
186 x + (TICKS_WIDTH + 1) / 2, y + (TICKS_HEIGHT + 1) / 2);
188 /* Draw vertical line from the curve to the X-axis */
189 //gfx_drawLine(bm, x, y, x, bm->cr.ymax - 1);
192 //CHECK_WALL(wall_before_raster, WALL_SIZE);
193 //CHECK_WALL(wall_after_raster, WALL_SIZE);