/// <summary>
/// Appends some text to the line.
/// </summary>
/// <param name='s'>
/// text to be appended.
/// </param>
/// <exception cref='System.Exception'>
/// Is thrown when the font may not be found, or when we
/// are unable to compute the layout info
/// </exception>
public void AppendText(string s)
{
if (s.Length == 0)
{
return;
}
int l0 = linetext.Length;
linetext += s;
#if TTFTEXT_LITE
if (tm.DemoMode)
{
#endif
SetCharStyle(l0, l0 + s.Length, tm.currentStyleIdx);
#if TTFTEXT_LITE
}
else
{
SetCharStyle(l0, l0 + s.Length, 0);
}
#endif
// UPDATE THE METRIC INFO
object f = null;
object parameters = null;
;
int fp = 0;
float sumadvance = 0;
for (int i = 0; i < l0; i++)
{
sumadvance += charadvances[i];
}
string currentfontid = "";
//f = tm.InitTextStyle.GetFont (ref fp, ref currentfontid, ref parameters);
//f = tm.CurrentTextStyle.GetFont (ref fp, ref currentfontid, ref parameters);
#if !TTFTEXT_LITE
f = tm.CurrentTextStyle.GetFont(ref fp, ref currentfontid, ref parameters);
#else
fp = 0;
currentfontid = tm.CurrentTextStyle.FontId;
parameters = tm.CurrentTextStyle.GetFontEngineParameters(0);
if (parameters == null)
{
System.Type t = TTFTextInternal.TTFTextFontEngine.font_engines [0].GetType().GetNestedType("Parameters");
tm.CurrentTextStyle.SetFontEngineParameters(0, t.InvokeMember(t.Name, BindingFlags.CreateInstance, null, null, null));
parameters = tm.CurrentTextStyle.GetFontEngineParameters(0);
}
f = TTFTextInternal.TTFTextFontEngine.font_engines[0].GetFont(parameters, currentfontid);
#endif
if (f == null)
{
//throw new System.Exception ("Font not found :" + fp + "/" + tm.InitTextStyle.GetFontEngineFontId (fp));
throw new System.Exception("Font not found :" + fp + "/" + tm.CurrentTextStyle.GetFontEngineFontId(fp));
}
for (int i = 0; i < s.Length; i++)
{
TTFTextStyle cttfstyle = GetCharStyle(l0 + i);
if ((cttfstyle != null) && (currentfontid != cttfstyle.GetFontEngineFontIdD(fp)))
{
TTFTextFontEngine.font_engines [fp].DisposeFont(f);
// f = cttfstyle.GetFont (ref fp, ref currentfontid, ref parameters);
#if !TTFTEXT_LITE
f = cttfstyle.GetFont(ref fp, ref currentfontid, ref parameters);
#else
fp = 0;
currentfontid = cttfstyle.FontId;
parameters = cttfstyle.GetFontEngineParameters(0);
if (parameters == null)
{
System.Type t = TTFTextInternal.TTFTextFontEngine.font_engines [0].GetType().GetNestedType("Parameters");
cttfstyle.SetFontEngineParameters(0, t.InvokeMember(t.Name, BindingFlags.CreateInstance, null, null, null));
parameters = tm.CurrentTextStyle.GetFontEngineParameters(0);
}
f = TTFTextInternal.TTFTextFontEngine.font_engines[0].GetFont(parameters, currentfontid);
#endif
if (f == null)
{
//throw new System.Exception ("Font not found :" + fp + "/" + tm.InitTextStyle.GetFontEngineFontId (fp));
throw new System.Exception("Font not found :" + fp + "/" + tm.CurrentTextStyle.GetFontEngineFontId(fp));
}
}
charadvances [l0 + i] = TTFTextFontEngine.font_engines [fp].GetAdvance(parameters, f, s [i]).x *cttfstyle.Size;
charheights [l0 + i] = TTFTextFontEngine.font_engines [fp].GetHeight(parameters, f);
charmetadata [l0 + i] = null;
if (!TTFTextFontEngine.font_engines[fp].IsBitmapFontProvider(parameters))
{
TTFTextOutline o = TTFTextFontEngine.font_engines [fp].GetGlyphOutline(parameters, f, s [i]);
o.Rescale(cttfstyle.Size);
if (l0 + i == 0)
{
Xmin0 = o.Min.x;
}
if (l0 + i == line.Length - 1)
{
XmaxN = o.Max.x;
}
}
else
{
//Debug.LogWarning("NYI !");
sumadvance += charadvances [l0 + i];
if (l0 + i == 0)
{
Xmin0 = 0;
}
if (l0 + i == line.Length - 1)
{
XmaxN = sumadvance;
}
}
}
TTFTextFontEngine.font_engines [fp].DisposeFont(f);
// can happen when the first or last char is non printable, like a space for example
if (float.IsNaN(XmaxN) || float.IsInfinity(XmaxN))
{
XmaxN = 0;
}
if (float.IsNaN(Xmin0) || float.IsInfinity(Xmin0))
{
Xmin0 = 0;
}
}
