* This file is part of DevLib - See devlib/README for information.
* -->
*
- * \version $Id$
+ * \brief printf-family routines for text output
*
+ * \version $Id$
* \author Bernardo Innocenti <bernie@develer.com>
* \author Stefano Fedrigo <aleph@develer.com>
- *
- * \brief printf-family routines for text output
*/
/*#*
*#* $Log$
+ *#* 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
*#*
* 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 mode Formatting mode to use. Can be TEXT_NORMAL,
- * TEXT_FILL, TEXT_INVERT or TEXT_RIGHT or a combination
- * of these flags ORed together.
+ * \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, uint8_t mode, const char * PGM_ATTR fmt, ...)
+ uint8_t row, uint8_t col, uint16_t style, const char * PGM_ATTR fmt, ...)
{
int len;
uint8_t oldstyle = 0;
text_moveto(bm, row, col);
- if (mode & TEXT_INVERT)
- oldstyle = text_style(STYLEF_INVERT, STYLEF_INVERT);
+ if (style & STYLEF_MASK)
+ oldstyle = text_style(style, STYLEF_MASK);
- if (mode & (TEXT_CENTER | TEXT_RIGHT))
+ if (style & (TEXT_CENTER | TEXT_RIGHT))
{
- uint8_t pad;
+ uint8_t pad = bm->width - PGM_FUNC(text_vwidthf)(bm, fmt, ap);
- pad = bm->width/FONT_WIDTH - PGM_FUNC(vsprintf)(NULL, fmt, ap);
-
- if (mode & TEXT_CENTER)
+ if (style & TEXT_CENTER)
pad /= 2;
- while (pad--)
- text_putchar(' ', bm);
+ if (style & TEXT_FILL)
+ gfx_RectFillC(bm, 0, row * FONT_HEIGHT, pad, (row + 1) * FONT_HEIGHT,
+ (style & STYLEF_INVERT) ? 0xFF : 0x00);
+
+ text_setcoord(bm, pad, row * FONT_HEIGHT);
}
len = PGM_FUNC(text_vprintf)(bm, fmt, ap);
va_end(ap);
- if (mode & (TEXT_FILL | TEXT_CENTER))
- while (bm->penX + FONT_WIDTH < bm->width)
- text_putchar(' ', bm);
+ if (style & TEXT_FILL)
+ gfx_RectFillC(bm, bm->penX, row * FONT_HEIGHT, bm->width, (row + 1) * FONT_HEIGHT,
+ (style & STYLEF_INVERT) ? 0xFF : 0x00);
- if (mode & TEXT_INVERT)
+ /* Restore old style */
+ if (style & STYLEF_MASK)
text_style(oldstyle, STYLEF_MASK);
return len;
}
+
+/*!
+ * Return the width in pixels of a vprintf()-formatted string.
+ */
+int PGM_FUNC(text_vwidthf)(UNUSED(struct Bitmap *, bm), const char * PGM_ATTR fmt, va_list ap)
+{
+ return PGM_FUNC(vsprintf)(NULL, fmt, ap) * FONT_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;
+}