X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=gfx%2Ftext_format.c;h=875a65d22ddc5984a22976517b1baa341802e53d;hb=6ec920da09a91594581c6d1a8931e72792b73525;hp=c59a3af9141cd81442d05f6773319e2ca5ac4bc4;hpb=22ea75fdc24002bc8b2a6fea2be1080cc3b39b1c;p=bertos.git

diff --git a/gfx/text_format.c b/gfx/text_format.c
index c59a3af9..875a65d2 100755
--- a/gfx/text_format.c
+++ b/gfx/text_format.c
@@ -1,4 +1,4 @@
-/*!
+/**
  * \file
  * <!--
  * Copyright 2003, 2004 Develer S.r.l. (http://www.develer.com/)
@@ -15,6 +15,24 @@
 
 /*#*
  *#* $Log$
+ *#* Revision 1.10  2006/07/19 12:56:26  bernie
+ *#* Convert to new Doxygen style.
+ *#*
+ *#* Revision 1.9  2006/04/27 05:39:24  bernie
+ *#* Enhance text rendering to arbitrary x,y coords.
+ *#*
+ *#* Revision 1.8  2006/03/22 09:50:11  bernie
+ *#* Don't use C99 stuff.
+ *#*
+ *#* Revision 1.7  2006/03/20 17:51:55  bernie
+ *#* Cleanups.
+ *#*
+ *#* Revision 1.6  2006/03/13 02:05:54  bernie
+ *#* Mark slow paths as UNLIKELY.
+ *#*
+ *#* 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.
  *#*
@@ -75,7 +93,7 @@
 #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
@@ -96,7 +114,7 @@ int PGM_FUNC(text_puts)(const char * PGM_ATTR str, struct Bitmap *bm)
 }
 
 
-/*!
+/**
  * vprintf()-like formatter to render text in a Bitmap.
  *
  * Perform vprintf()-like formatting on the \a fmt format string using the
@@ -111,7 +129,7 @@ int PGM_FUNC(text_vprintf)(struct Bitmap *bm, const char * PGM_ATTR fmt, va_list
 	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.
@@ -132,35 +150,21 @@ int PGM_FUNC(text_printf)(struct Bitmap *bm, const char * PGM_ATTR fmt, ...)
 	return len;
 }
 
-
-/*!
- * Render the result of printf()-like formatting in a specified position
- * of a Bitmap.
+/**
+ * Render text with vprintf()-like formatting at a specified pixel position.
  *
- * \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()
+ * \see text_xyprintf()
  */
-int PGM_FUNC(text_xprintf)(struct Bitmap *bm,
-		uint8_t row, uint8_t col, uint16_t style, const char * PGM_ATTR fmt, ...)
+int PGM_FUNC(text_xyvprintf)(struct Bitmap *bm,
+		coord_t x, coord_t y, uint16_t style, const char * PGM_ATTR fmt, va_list ap)
 {
 	int len;
 	uint8_t oldstyle = 0;
-	va_list ap;
-
-	va_start(ap, fmt);
 
-	text_moveto(bm, row, col);
+	text_setCoord(bm, x, y);
 
 	if (style & STYLEF_MASK)
-		oldstyle = text_style(style, STYLEF_MASK);
+		oldstyle = text_style(bm, style, STYLEF_MASK);
 
 	if (style & (TEXT_CENTER | TEXT_RIGHT))
 	{
@@ -170,28 +174,130 @@ int PGM_FUNC(text_xprintf)(struct Bitmap *bm,
 			pad /= 2;
 
 		if (style & TEXT_FILL)
-			gfx_rectFillC(bm, 0, row * bm->font->height, pad, (row + 1) * bm->font->height,
+			gfx_rectFillC(bm, 0, y, pad, y + bm->font->height,
 				(style & STYLEF_INVERT) ? 0xFF : 0x00);
 
-		text_setcoord(bm, pad, row * bm->font->height);
+		text_setCoord(bm, pad, y);
 	}
 
 	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,
+		gfx_rectFillC(bm, bm->penX, y, bm->width, y + bm->font->height,
 			(style & STYLEF_INVERT) ? 0xFF : 0x00);
 
 	/* Restore old style */
 	if (style & STYLEF_MASK)
-		text_style(oldstyle, STYLEF_MASK);
+		text_style(bm, oldstyle, STYLEF_MASK);
+
+	return len;
+}
+
+
+/**
+ * Render text with printf()-like formatting at a specified pixel position.
+ *
+ * \param bm Bitmap where to render the text
+ * \param x     [pixels] Initial X coordinate of text.
+ * \param y     [pixels] Coordinate of top border of text.
+ * \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_xyprintf)(struct Bitmap *bm,
+		coord_t x, coord_t y, uint16_t style, const char * PGM_ATTR fmt, ...)
+{
+	int len;
+	va_list ap;
+
+	va_start(ap, fmt);
+	len = PGM_FUNC(text_xyvprintf)(bm, x, y, style, fmt, ap);
+	va_end(ap);
 
 	return len;
 }
 
 
-/*!
+/**
+ * Render text with printf()-like formatting at a specified row/column position.
+ *
+ * \see text_xyprintf()
+ */
+int PGM_FUNC(text_xprintf)(struct Bitmap *bm,
+		uint8_t row, uint8_t col, uint16_t style, const char * PGM_ATTR fmt, ...)
+{
+	int len;
+	va_list ap;
+
+	va_start(ap, fmt);
+	len = PGM_FUNC(text_xyvprintf)(
+			bm, col * bm->font->width, row * bm->font->height,
+			style, fmt, ap);
+	va_end(ap);
+
+	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 (UNLIKELY(!FONT_HAS_GLYPH(bm->font, index)))
+	{
+		if (!FONT_HAS_GLYPH(bm->font, '?'))
+			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)(
@@ -199,11 +305,21 @@ int PGM_FUNC(text_vwidthf)(
 	const char * PGM_ATTR fmt,
 	va_list ap)
 {
-	return PGM_FUNC(vsprintf)(NULL, fmt, ap) * bm->font->width;
+	/* 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;
+		twd.bitmap = bm;
+		twd.width = 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, ...)