public float[] DrawString(string s, float x, float y, float width, float height, LineBreakMode lineBreak, TextAlignment align)
{
if (_lastFont == null)
{
return new float[] { 0, 0 }
}
;
float maxWidth = 0.0f;
var cacheObjectKey = s + "_" + x + "_" + y + "_" + width + "_" + height + "_" + lineBreak + "_" + align;
CacheObjectDrawString cacheObject = null;
CacheObjectDrawStringDict.TryGetValue(cacheObjectKey, out cacheObject);
if (cacheObject == null)
{
cacheObject = new CacheObjectDrawString();
cacheObject.DeleteTag = false;
cacheObject.Key = cacheObjectKey;
//s = FixupString(s);
cacheObject.StringLinesiOSDict = new Dictionary <string, byte[]>();
cacheObject.StringLinesiOSDict[s] = FixupString(s);
cacheObject.StringLines = new List <string>()
{
s
};
CacheObjectDrawStringDict[cacheObjectKey] = cacheObject;
}
var fm = GetFontMetrics();
string sPart = "";
float stringWidth = 0.0f;
if (cacheObject.LineBreak != lineBreak)
{
cacheObject.StringLines = new List <string>();
cacheObject.LineBreak = lineBreak;
switch (lineBreak)
{
case LineBreakMode.WordWrap:
var wordParts = s.Split(new string[] { " " }, StringSplitOptions.None);
stringWidth = 0.0f;
sPart = "";
for (int i = 0; i < wordParts.Length; i++)
{
var item = wordParts[i];
stringWidth = fm.StringWidth(sPart + item + " ");
if (stringWidth > width && sPart.Length > 0)
{
sPart = sPart.Remove(sPart.Length - 1); //Remove space at the end
cacheObject.StringLines.Add(sPart);
cacheObject.StringLinesiOSDict[sPart] = FixupString(sPart);
sPart = "";
}
sPart += item + " ";
}
if (sPart.Length > 0)
{
sPart = sPart.Remove(sPart.Length - 1); //Remove space at the end
cacheObject.StringLines.Add(sPart);
cacheObject.StringLinesiOSDict[sPart] = FixupString(sPart);
}
break;
case LineBreakMode.Wrap:
//Cut the string if the width is reached
var charArray = s.ToCharArray();
sPart = "";
stringWidth = 0.0f;
for (int i = 0; i < charArray.Length; i++)
{
var item = charArray[i];
stringWidth = fm.StringWidth(sPart + item);
if (stringWidth > width && sPart.Length > 0)
{
cacheObject.StringLines.Add(sPart);
cacheObject.StringLinesiOSDict[sPart] = FixupString(sPart);
sPart = "";
}
sPart += item;
}
if (sPart.Length > 0)
{
cacheObject.StringLines.Add(sPart);
cacheObject.StringLinesiOSDict[sPart] = FixupString(sPart);
}
break;
default:
cacheObject.StringLines.Add(s);
break;
}
}
switch (align)
{
case TextAlignment.Right:
//y += fm.Ascent - fm.Descent;
y += fm.Ascent;
foreach (var item in cacheObject.StringLines)
{
stringWidth = fm.StringWidth(item);
if (stringWidth > maxWidth)
{
maxWidth = stringWidth;
}
//_c.DrawText(item, x + width - stringWidth, y, _paints.Fill);
_c.ShowTextAtPoint(x + width - stringWidth, y, cacheObject.StringLinesiOSDict[item]);
y += fm.Ascent + fm.Descent;
}
break;
case TextAlignment.Center:
//y += fm.Ascent - fm.Descent;
y += fm.Ascent;
foreach (var item in cacheObject.StringLines)
{
stringWidth = fm.StringWidth(item);
if (stringWidth > maxWidth)
{
maxWidth = stringWidth;
}
//_c.DrawText(item, x + width * 0.5f - stringWidth * 0.5f, y, _paints.Fill);
_c.ShowTextAtPoint(x + width * 0.5f - stringWidth * 0.5f, y, FixupString(item));
y += fm.Ascent + fm.Descent;
}
break;
default:
//y += fm.Ascent - fm.Descent;
y += fm.Ascent;
foreach (var item in cacheObject.StringLines)
{
stringWidth = fm.StringWidth(item);
if (stringWidth > maxWidth)
{
maxWidth = stringWidth;
}
//_c.DrawText(item, x, y, _paints.Fill);
_c.ShowTextAtPoint(x, y, FixupString(item));
y += fm.Ascent + fm.Descent;
}
break;
}
return(new float[] { maxWidth, (fm.Ascent + fm.Descent) * cacheObject.StringLines.Count });
//alt:
//var fm = GetFontMetrics ();
//var fix = FixupString (s);
//var xx = x;
//var yy = y;
//if (align == TextAlignment.Center) {
// xx = (x + width / 2) - (fm.StringWidth (s) / 2);
//}
//else if (align == TextAlignment.Right) {
// xx = (x + width) - fm.StringWidth (s);
//}
//if (fix == null) {
// _c.ShowTextAtPoint(xx, yy + fm.Height, s);
//}
//else {
// _c.ShowTextAtPoint(xx, yy + fm.Height, fix);
//}
////return new double[] { (double)fm.StringWidth(s), (double)fm.Height };
//return new double[] { 0, 0 };
}
public float[] DrawString(string s, float x, float y, float width, float height, LineBreakMode lineBreak, TextAlignment align)
{
if (string.IsNullOrWhiteSpace(s))
{
return new float[] { }
}
;
x *= _scaledDensity;
y *= _scaledDensity;
width *= _scaledDensity;
height *= _scaledDensity;
float maxWidth = 0.0f;
var cacheObjectKey = s + "_" + x + "_" + y + "_" + width + "_" + height + "_" + lineBreak + "_" + align;
CacheObjectDrawString cacheObject = null;
CacheObjectDrawStringDict.TryGetValue(cacheObjectKey, out cacheObject);
if (cacheObject == null)
{
cacheObject = new CacheObjectDrawString();
cacheObject.DeleteTag = false;
cacheObject.Key = cacheObjectKey;
cacheObject.StringLines = new List <string>()
{
s
};
CacheObjectDrawStringDict[cacheObjectKey] = cacheObject;
}
SetFontOnPaints();
var fm = GetFontMetrics();
string sPart = "";
float stringWidth = 0.0f;
if (cacheObject.LineBreak != lineBreak)
{
cacheObject.StringLines = new List <string>();
cacheObject.LineBreak = lineBreak;
switch (lineBreak)
{
case LineBreakMode.WordWrap:
var wordParts = s.Split(new string[] { " " }, StringSplitOptions.None);
stringWidth = 0.0f;
sPart = "";
for (int i = 0; i < wordParts.Length; i++)
{
var item = wordParts[i];
stringWidth = fm.StringWidth(sPart + item + " ") * _scaledDensity;
if (stringWidth > width && sPart.Length > 0)
{
sPart = sPart.Remove(sPart.Length - 1); //Remove space at the end
cacheObject.StringLines.Add(sPart);
sPart = "";
}
sPart += item + " ";
}
if (sPart.Length > 0)
{
sPart = sPart.Remove(sPart.Length - 1); //Remove space at the end
cacheObject.StringLines.Add(sPart);
}
break;
case LineBreakMode.Wrap:
//Cut the string if the width is reached
var charArray = s.ToCharArray();
sPart = "";
stringWidth = 0.0f;
for (int i = 0; i < charArray.Length; i++)
{
var item = charArray[i];
stringWidth = fm.StringWidth(sPart + item) * _scaledDensity;
if (stringWidth > width && sPart.Length > 0)
{
cacheObject.StringLines.Add(sPart);
sPart = "";
}
sPart += item;
}
if (sPart.Length > 0)
{
cacheObject.StringLines.Add(sPart);
}
break;
default:
cacheObject.StringLines.Add(s);
break;
}
cacheObject.StringLines = cacheObject.StringLines;
}
switch (align)
{
case TextAlignment.Right:
//y += fm.Ascent - fm.Descent;
y += fm.Ascent;
foreach (var item in cacheObject.StringLines)
{
stringWidth = fm.StringWidth(item) * _scaledDensity;
if (stringWidth > maxWidth)
{
maxWidth = stringWidth;
}
_c.DrawText(item, x + width - stringWidth, y, _paints.Fill);
y += fm.Ascent + fm.Descent;
}
break;
case TextAlignment.Center:
//y += fm.Ascent - fm.Descent;
y += fm.Ascent;
foreach (var item in cacheObject.StringLines)
{
stringWidth = fm.StringWidth(item) * _scaledDensity;
if (stringWidth > maxWidth)
{
maxWidth = stringWidth;
}
_c.DrawText(item, x + width * 0.5f - stringWidth * 0.5f, y, _paints.Fill);
y += fm.Ascent + fm.Descent;
}
break;
default:
//y += fm.Ascent - fm.Descent;
y += fm.Ascent;
foreach (var item in cacheObject.StringLines)
{
stringWidth = fm.StringWidth(item) * _scaledDensity;
if (stringWidth > maxWidth)
{
maxWidth = stringWidth;
}
_c.DrawText(item, x, y, _paints.Fill);
y += fm.Ascent + fm.Descent;
}
break;
}
return(new float[] { maxWidth / _scaledDensity, ((fm.Ascent + fm.Descent) * cacheObject.StringLines.Count) / _scaledDensity });
}
