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added lcd_getstringsize() within the propfonts test define

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@1124 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Daniel Stenberg 2002-06-20 11:30:25 +00:00
parent 7826fc39f2
commit 788f1ceae2
1 changed files with 28 additions and 0 deletions
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28
firmware/drivers/lcd.c
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@ -492,6 +492,34 @@ void lcd_setmargins(int x, int y)
extern unsigned char char_dw_8x8_prop[][9]; extern unsigned char char_dw_8x8_prop[][9];
/*
* Return width and height of a given font.
*/
void lcd_getstringsize(char *str, unsigned int font, int *w, int *h)
{
(void)font;
int width=0;
int height=0;
unsigned char ch, byte;
while((ch = *str++)) {
/* Limit to char generation table */
if ((ch < ASCII_MIN) || (ch > 0x7a))
/* replace unsupported letters with question marks */
ch = ' '-ASCII_MIN;
else
ch -= ASCII_MIN;
byte = char_dw_8x8_prop[ch][8];
width += byte>>4;
if((byte & 0x0f) > height)
height = byte & 0x0f;
}
*w = width;
*h = height;
}
/* /*
* Put a string at specified bit position * Put a string at specified bit position
*/ */