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 2003, 2004 Develer S.r.l. (http://www.develer.com/)
30 * Copyright 1999 Bernie Innocenti <bernie@codewiz.org>
35 * \author Bernie Innocenti <bernie@codewiz.org>
36 * \author Stefano Fedrigo <aleph@develer.com>
38 * \brief printf-family routines for text output
43 #include <mware/formatwr.h> /* _formatted_write() */
47 #include <stdio.h> /* vsprintf() */
49 #include <string.h> /* strlen() */
52 * Render string \a str in Bitmap \a bm at current cursor position
54 * \note Text formatting functions are also available with an _P suffix
55 * accepting the source string from program memory. This feature
56 * is only available (and useful) on Harvard microprocessors such
61 int PGM_FUNC(text_puts)(const char * PGM_ATTR str, struct Bitmap *bm)
65 while ((c = PGM_READ_CHAR(str++)))
73 * vprintf()-like formatter to render text in a Bitmap.
75 * Perform vprintf()-like formatting on the \a fmt format string using the
76 * variable-argument list \a ap.
77 * Render the resulting string in Bitmap \a bm starting at the current
80 * \see text_puts() text_putchar() text_printf()
82 int PGM_FUNC(text_vprintf)(struct Bitmap *bm, const char * PGM_ATTR fmt, va_list ap)
84 return PGM_FUNC(_formatted_write)(fmt, (void (*)(char, void *))text_putchar, bm, ap);
88 * printf()-like formatter to render text in a Bitmap.
90 * Perform printf()-like formatting on the \a fmt format string.
91 * Render the resulting string in Bitmap \a bm starting at the
92 * current cursor position.
94 * \see text_puts() text_putchar() text_vprintf()
96 int PGM_FUNC(text_printf)(struct Bitmap *bm, const char * PGM_ATTR fmt, ...)
102 len = PGM_FUNC(text_vprintf)(bm, fmt, ap);
109 * Render text with vprintf()-like formatting at a specified pixel position.
111 * \see text_xyprintf()
113 int PGM_FUNC(text_xyvprintf)(struct Bitmap *bm,
114 coord_t x, coord_t y, uint16_t style, const char * PGM_ATTR fmt, va_list ap)
117 uint8_t oldstyle = 0;
119 text_setCoord(bm, x, y);
121 if (style & STYLEF_MASK)
122 oldstyle = text_style(bm, style, STYLEF_MASK);
124 if (style & (TEXT_CENTER | TEXT_RIGHT))
126 uint8_t pad = bm->width - PGM_FUNC(text_vwidthf)(bm, fmt, ap);
128 if (style & TEXT_CENTER)
131 if (style & TEXT_FILL)
132 gfx_rectFillC(bm, 0, y, pad, y + bm->font->height,
133 (style & STYLEF_INVERT) ? 0xFF : 0x00);
135 text_setCoord(bm, pad, y);
138 len = PGM_FUNC(text_vprintf)(bm, fmt, ap);
140 if (style & TEXT_FILL)
141 gfx_rectFillC(bm, bm->penX, y, bm->width, y + bm->font->height,
142 (style & STYLEF_INVERT) ? 0xFF : 0x00);
144 /* Restore old style */
145 if (style & STYLEF_MASK)
146 text_style(bm, oldstyle, STYLEF_MASK);
153 * Render text with printf()-like formatting at a specified pixel position.
155 * \param bm Bitmap where to render the text
156 * \param x [pixels] Initial X coordinate of text.
157 * \param y [pixels] Coordinate of top border of text.
158 * \param style Formatting style to use. In addition to any STYLEF_
159 * flag, it can be TEXT_NORMAL, TEXT_FILL, TEXT_INVERT or
160 * TEXT_RIGHT, or a combination of these flags ORed together.
161 * \param fmt String possibly containing printf() formatting commands.
163 * \see text_puts() text_putchar() text_printf() text_vprintf()
164 * \see text_moveTo() text_style()
166 int PGM_FUNC(text_xyprintf)(struct Bitmap *bm,
167 coord_t x, coord_t y, uint16_t style, const char * PGM_ATTR fmt, ...)
173 len = PGM_FUNC(text_xyvprintf)(bm, x, y, style, fmt, ap);
181 * Render text with printf()-like formatting at a specified row/column position.
183 * \see text_xyprintf()
185 int PGM_FUNC(text_xprintf)(struct Bitmap *bm,
186 uint8_t row, uint8_t col, uint16_t style, const char * PGM_ATTR fmt, ...)
192 len = PGM_FUNC(text_xyvprintf)(
193 bm, col * bm->font->width, row * bm->font->height,
208 * Compute width in pixels of a character.
210 * Compute the on screen width of a character, taking the
211 * current style and font into account.
213 * The width is accumulated in the WidthData structure
214 * passed as second argument.
216 * This is a formatted_write() callback used by text_vwidthf()
217 * to compute the length of a formatted string.
219 static int text_charWidth(int c, struct TextWidthData *twd)
221 unsigned char index = (unsigned char)c;
222 Bitmap *bm = twd->bitmap;
226 if (UNLIKELY(!FONT_HAS_GLYPH(bm->font, index)))
228 if (!FONT_HAS_GLYPH(bm->font, '?'))
231 index = bm->font->first;
234 /* Make character relative to font start */
235 index -= bm->font->first;
237 if (bm->font->offset)
238 /* Proportional font */
239 glyph_width = bm->font->widths[index]; /* TODO: optimize away */
241 /* Fixed width font */
242 glyph_width = bm->font->width;
244 if (bm->styles & STYLEF_CONDENSED)
247 if (bm->styles & STYLEF_EXPANDED)
250 twd->width += glyph_width;
256 * Return the width in pixels of a vprintf()-formatted string.
258 int PGM_FUNC(text_vwidthf)(
259 UNUSED_ARG(struct Bitmap *, bm),
260 const char * PGM_ATTR fmt,
263 /* Fixed font with no styles affecting the width? */
264 if (!bm->font->offset && !(bm->styles & (STYLEF_CONDENSED | STYLEF_EXPANDED)))
265 return PGM_FUNC(vsprintf)(NULL, fmt, ap) * bm->font->width;
268 struct TextWidthData twd;
271 _formatted_write(fmt, (void (*)(char, void *))text_charWidth, &twd, ap);
278 * Return the width in pixels of a printf()-formatted string.
280 int PGM_FUNC(text_widthf)(struct Bitmap *bm, const char * PGM_ATTR fmt, ...)
286 width = PGM_FUNC(text_vwidthf)(bm, fmt, ap);