/// <summary>
/// formats a string into the specified rectangle.
/// -1 height means no limit
/// </summary>
public StringLayoutInfo layoutRectangle(int w, int h, string str)
{
str = str.Replace("\r\n", "\n");
StringLayoutInfo ret = new StringLayoutInfo();
if(h == -1) h = int.MaxValue;
//special case
if(str.Length == 0)
return ret;
int backtrack = 0;
int xo = 0, yo = 0;
int cursor = -1;
int lineheight = _scale*10; //includes line spacing
ret.parts.Add("");
for(;;) {
cursor++;
//if this character completes the string, or a chunk, then check whether it fits and then output it
if(cursor == str.Length || str[cursor] == ' ') {
string chunk = str.Substring(backtrack, cursor-backtrack);
int chunksize = MeasureWidth(chunk);
if(xo+chunksize>w) {
//ohno too wide
yo += lineheight;
xo = 0;
ret.parts.Add("");
}
//have we run out of vertical room? theres not room for anything else
if(yo+10*_scale>h) break;
//ok we can render it
//render(b, x+xo, y+yo, chunk);
ret.parts[ret.parts.Count-1] += chunk + " ";
//increase width of this line and push out the bounds
xo += chunksize;
ret.size.Width = Math.Max(ret.size.Width, xo);
//if we're continuing this line, we'll want to leave room for a space.
xo += MeasureWidth(" ");
//if we finished things off, then bail
if(cursor == str.Length) {
ret.complete = true;
break;
}
//advance string cursor
cursor++;
backtrack = cursor;
} else if(str[cursor] == '\n') {
backtrack = cursor;
yo += lineheight;
xo = 0;
ret.parts.Add("");
//have we run out of vertical room? theres not room for anything else
if(yo+lineheight>h) break;
}
}
ret.size.Height = yo + lineheight;
return ret;
}
public void renderLayout(Blitter b, int x, int y, StringLayoutInfo sli)
{
int lineheight = _scale*10; //includes line spacing
foreach(string s in sli.parts) {
Render(b, x, y, s);
y += lineheight;
}
}
