+++ /dev/null
-/*!
- * \file
- * <!--
- * Copyright 2003, 2004 Develer S.r.l. (http://www.develer.com/)
- * Copyright 1999 Bernardo Innocenti <bernie@develer.com>
- * This file is part of DevLib - See README.devlib for information.
- * -->
- *
- * \brief printf-family routines for text output
- *
- * \version $Id$
- * \author Bernardo Innocenti <bernie@develer.com>
- * \author Stefano Fedrigo <aleph@develer.com>
- */
-
-/*#*
- *#* $Log$
- *#* Revision 1.5 2006/03/07 22:18:04 bernie
- *#* Correctly compute text width for prop fonts; Make styles a per-bitmap attribute.
- *#*
- *#* Revision 1.4 2006/02/10 12:31:33 bernie
- *#* Add multiple font support in bitmaps.
- *#*
- *#* Revision 1.3 2005/11/27 23:31:58 bernie
- *#* Reorder includes.
- *#*
- *#* Revision 1.2 2005/11/04 18:17:45 bernie
- *#* Fix header guards and includes for new location of gfx module.
- *#*
- *#* Revision 1.1 2005/11/04 18:11:35 bernie
- *#* Move graphics stuff from mware/ to gfx/.
- *#*
- *#* Revision 1.10 2005/11/04 16:20:02 bernie
- *#* Fix reference to README.devlib in header.
- *#*
- *#* Revision 1.9 2004/12/31 17:47:45 bernie
- *#* Rename UNUSED() to UNUSED_ARG().
- *#*
- *#* Revision 1.8 2004/11/16 21:16:56 bernie
- *#* Update to new naming scheme in mware/gfx.c.
- *#*
- *#* Revision 1.7 2004/10/03 19:05:04 bernie
- *#* text_widthf(), text_vwidthf(): New functions.
- *#*
- *#* Revision 1.6 2004/09/14 20:59:04 bernie
- *#* text_xprintf(): Support all styles; Pixel-wise text centering.
- *#*
- *#* Revision 1.5 2004/08/25 14:12:09 rasky
- *#* Aggiornato il comment block dei log RCS
- *#*
- *#* Revision 1.4 2004/08/05 18:46:44 bernie
- *#* Documentation improvements.
- *#*
- *#* Revision 1.3 2004/08/03 15:57:18 aleph
- *#* Add include to fix warning for vsprintf()
- *#*
- *#* Revision 1.2 2004/06/03 11:27:09 bernie
- *#* Add dual-license information.
- *#*
- *#* Revision 1.1 2004/05/23 15:43:16 bernie
- *#* Import mware modules.
- *#*
- *#* Revision 1.2 2004/03/26 18:50:50 bernie
- *#* Move _PROGMEM stuff to compiler.h
- *#*
- *#* Revision 1.1 2004/03/19 16:52:28 bernie
- *#* Move printf() like functions from text.c to text_format.c and add PROGMEM versions.
- *#*
- *#*/
-
-#include "text.h"
-
-#include <mware/formatwr.h> /* _formatted_write() */
-#include <gfx/font.h>
-#include <gfx/gfx.h>
-
-#include <stdio.h> /* vsprintf() */
-#include <stdarg.h>
-#include <string.h> /* strlen() */
-
-/*!
- * Render string \a str in Bitmap \a bm at current cursor position
- *
- * \note Text formatting functions are also available with an _P suffix
- * accepting the source string from program memory. This feature
- * is only available (and useful) on Harvard microprocessors such
- * as the AVR.
- *
- * \see text_putchar()
- */
-int PGM_FUNC(text_puts)(const char * PGM_ATTR str, struct Bitmap *bm)
-{
- char c;
-
- while ((c = PGM_READ_CHAR(str++)))
- text_putchar(c, bm);
-
- return 0;
-}
-
-
-/*!
- * vprintf()-like formatter to render text in a Bitmap.
- *
- * Perform vprintf()-like formatting on the \a fmt format string using the
- * variable-argument list \a ap.
- * Render the resulting string in Bitmap \a bm starting at the current
- * cursor position.
- *
- * \see text_puts() text_putchar() text_printf()
- */
-int PGM_FUNC(text_vprintf)(struct Bitmap *bm, const char * PGM_ATTR fmt, va_list ap)
-{
- return PGM_FUNC(_formatted_write)(fmt, (void (*)(char, void *))text_putchar, bm, ap);
-}
-
-/*!
- * printf()-like formatter to render text in a Bitmap.
- *
- * Perform printf()-like formatting on the \a fmt format string.
- * Render the resulting string in Bitmap \a bm starting at the
- * current cursor position.
- *
- * \see text_puts() text_putchar() text_vprintf()
- */
-int PGM_FUNC(text_printf)(struct Bitmap *bm, const char * PGM_ATTR fmt, ...)
-{
- int len;
-
- va_list ap;
- va_start(ap, fmt);
- len = PGM_FUNC(text_vprintf)(bm, fmt, ap);
- va_end(ap);
-
- return len;
-}
-
-
-/*!
- * Render the result of printf()-like formatting in a specified position
- * of a Bitmap.
- *
- * \param bm Bitmap where to render the text
- * \param row Starting row in character units (zero based)
- * \param col Starting column in character units (zero based)
- * \param style Formatting style to use. In addition to any STYLEF_
- * flag, it can be TEXT_NORMAL, TEXT_FILL, TEXT_INVERT or
- * TEXT_RIGHT, or a combination of these flags ORed together.
- * \param fmt String possibly containing printf() formatting commands.
- *
- * \see text_puts() text_putchar() text_printf() text_vprintf()
- * \see text_moveto() text_style()
- */
-int PGM_FUNC(text_xprintf)(struct Bitmap *bm,
- uint8_t row, uint8_t col, uint16_t style, const char * PGM_ATTR fmt, ...)
-{
- int len;
- uint8_t oldstyle = 0;
- va_list ap;
-
- va_start(ap, fmt);
-
- text_moveto(bm, row, col);
-
- if (style & STYLEF_MASK)
- oldstyle = text_style(bm, style, STYLEF_MASK);
-
- if (style & (TEXT_CENTER | TEXT_RIGHT))
- {
- uint8_t pad = bm->width - PGM_FUNC(text_vwidthf)(bm, fmt, ap);
-
- if (style & TEXT_CENTER)
- pad /= 2;
-
- if (style & TEXT_FILL)
- gfx_rectFillC(bm, 0, row * bm->font->height, pad, (row + 1) * bm->font->height,
- (style & STYLEF_INVERT) ? 0xFF : 0x00);
-
- text_setcoord(bm, pad, row * bm->font->height);
- }
-
- len = PGM_FUNC(text_vprintf)(bm, fmt, ap);
- va_end(ap);
-
- if (style & TEXT_FILL)
- gfx_rectFillC(bm, bm->penX, row * bm->font->height, bm->width, (row + 1) * bm->font->height,
- (style & STYLEF_INVERT) ? 0xFF : 0x00);
-
- /* Restore old style */
- if (style & STYLEF_MASK)
- text_style(bm, oldstyle, STYLEF_MASK);
-
- return len;
-}
-
-
-struct TextWidthData
-{
- Bitmap *bitmap;
- coord_t width;
-};
-
-/**
- * Compute width in pixels of a character.
- *
- * Compute the on screen width of a character, taking the
- * current style and font into account.
- *
- * The width is accumulated in the WidthData structure
- * passed as second argument.
- *
- * This is a formatted_write() callback used by text_vwidthf()
- * to compute the length of a formatted string.
- */
-static int text_charWidth(int c, struct TextWidthData *twd)
-{
- unsigned char index = (unsigned char)c;
- Bitmap *bm = twd->bitmap;
- coord_t glyph_width;
-
-
- if (index < bm->font->first || index > bm->font->last)
- {
- if ('?' >= bm->font->first && '?' <= bm->font->last)
- index = '?';
- else
- index = bm->font->first;
- }
-
- /* Make character relative to font start */
- index -= bm->font->first;
-
- if (bm->font->offset)
- /* Proportional font */
- glyph_width = bm->font->widths[index]; /* TODO: optimize away */
- else
- /* Fixed width font */
- glyph_width = bm->font->width;
-
- if (bm->styles & STYLEF_CONDENSED)
- --glyph_width;
-
- if (bm->styles & STYLEF_EXPANDED)
- glyph_width *= 2;
-
- twd->width += glyph_width;
-
- return c;
-}
-
-/*!
- * Return the width in pixels of a vprintf()-formatted string.
- */
-int PGM_FUNC(text_vwidthf)(
- UNUSED_ARG(struct Bitmap *, bm),
- const char * PGM_ATTR fmt,
- va_list ap)
-{
- /* Fixed font with no styles affecting the width? */
- if (!bm->font->offset && !(bm->styles & (STYLEF_CONDENSED | STYLEF_EXPANDED)))
- return PGM_FUNC(vsprintf)(NULL, fmt, ap) * bm->font->width;
- else
- {
- struct TextWidthData twd = { bm, 0 };
- _formatted_write(fmt, (void (*)(char, void *))text_charWidth, &twd, ap);
- return twd.width;
- }
-}
-
-
-/*!
- * Return the width in pixels of a printf()-formatted string.
- */
-int PGM_FUNC(text_widthf)(struct Bitmap *bm, const char * PGM_ATTR fmt, ...)
-{
- int width;
-
- va_list ap;
- va_start(ap, fmt);
- width = PGM_FUNC(text_vwidthf)(bm, fmt, ap);
- va_end(ap);
-
- return width;
-}
projects / bertos.git / blobdiff