🚀 go-pugleaf

Hi,

thx for youyr effort. i got your point and tried to get metrics without
rotation. it seems it's working (with TA_BASELINE). i want to ask that are
your sure about is bounding box always as the same with non-rotated one ? i
tried with Arial & Verdana fonts and seems that they are same. as you said
windows fudges text height when the font rotated.

thx again so much. that really helped me...

P.S. : sorry , my first post gone wrong to your personal mail addr...

-- 
________________________________________
Eyyub Volkan �ektimur
Proya Software & Trade Inc.
Head of Core Development Department
"Bob Gonder" <notbg@notmindspring.invalid> wrote in message
news:jijdt1du2lvrtfp5rd0m79m4qkn0d37far@4ax.com...
>
> Ok, here's what I found.
> MS fudges the text height when rotated.
> The rotated text height on screen is actually the same as non-rotated.
> So get the non-rotated height, and adjust the box.
> This is complicated by you using TA_TOP because you need to adjust the
> start location of the box. If you used TA_BOTTOM, you'd just need to
> use the correct height I think (and change the box calc for negative
> Y).
> This isn't perfect, but seems to be pretty close, at least at normal
> font sizes. Change Dy,Dx to 50,50, and it's off.
>
> POINT BoundingPoints[5] = {0};
> POINT P;
>
> HFONT Font = CreateFont(
> 0,0,//Dy,Dx,
> RotAngle*10, // angle of escapement
> RotAngle*10, // base-line orientation angle
> FW_NORMAL, // font weight
> FALSE, // italic attribute flag
> FALSE, // underline attribute flag
> FALSE, // strikeout attribute flag
> DEFAULT_CHARSET, // character set identifier
> OUT_DEVICE_PRECIS, // output precision
> CLIP_DEFAULT_PRECIS, // clipping precision
> PROOF_QUALITY, // output quality
> VARIABLE_PITCH+FF_DONTCARE, // pitch and family
> "Arial" // typeface name string
> );
> SelectObject(hdc,(HGDIOBJ)Font);
> SetTextAlign( hdc, TA_TOP );
> SetBkMode( hdc, OPAQUE ); /* shows full size of text field */
> TextOut( hdc, Org.x, Org.y, Text, lstrlen(Text) );
>
> SIZE lpSize;
> GetTextExtentPoint32( hdc, Text, lstrlen(Text), &lpSize );
> TextWidth = lpSize.cx;
>
> GetTextMetrics( hdc, &tm );
>
> switch( type )
> {case 0: // non-rotated
> TextHeight = lpSize.cy;
> OldTextHeight = TextHeight;
> OldAscent = tm.tmAscent;
> break;
> case 2: // 135 degrees
> TextHeight = OldTextHeight;
> Org.x += (tm.tmAscent - OldAscent);
> Org.y -= (tm.tmAscent - OldAscent);
> break;
> case 1: // 45 degrees
> TextHeight = OldTextHeight;
> Org.x += (tm.tmAscent - OldAscent);
> Org.y += (tm.tmAscent - OldAscent);
> break;
> case other:
> write the code for 225 and 315
> };
>
> BoundingPoints[1].x = TextWidth;
> BoundingPoints[2].x = TextWidth;
> BoundingPoints[2].y = TextHeight;
> BoundingPoints[3].y = TextHeight;
>
> // Apply Rotation Matrix to Points
> for( cx=0; cx<4; ++cx)
> {
>      P=BoundingPoints[cx];
>      BoundingPoints[cx].x = Org.x + (RotMatrix[0] * P.x) +
> (RotMatrix[1] * P.y);
>      BoundingPoints[cx].y = Org.y + (RotMatrix[2] * P.x) +
> (RotMatrix[3] * P.y);
> };
> BoundingPoints[4] = BoundingPoints[0];  //Close the poly
>
> // Draw Boundary
> Polyline( hdc, BoundingPoints, 5 );
>
>
> Entire test code available if you need it.
>
>
>