/// <summary>
/// Core function generating the outline for a portion of text
/// </summary>
/// <returns>
/// The outline.
/// </returns>
/// <param name='txt'>
/// The text to be rendered
/// </param>
/// <param name='charSpacing'>
/// The default character spacing
/// </param>
/// <param name='embold'>
/// Current embold
/// </param>
/// <param name='tm'>
/// Link to the TTFText object
/// </param>
/// <param name='reversed'>
/// Orientation of the outlines
/// </param>
/// <param name='charpositions'>
/// Position of the character
/// </param>
/// <param name='charstyleidx'>
/// Style index of each character
/// </param>
/// <param name='charmetadata'>
/// Metadata associated to special character such as images and bitmap characters
/// </param>
/// <exception cref='System.Exception'>
/// Is thrown when the exception.
/// </exception>
public static TTFTextOutline MakeOutline (string txt,
float charSpacing,
float embold,
TTFText tm,
bool reversed,
float [] charpositions,
int [] charstyleidx,
object [] charmetadata)
{
TTFTextOutline outline = new TTFTextOutline ();
int fp = 0;
string currentfontid = "";
object cfont = null;
object parameters = null;
TTFTextStyle cttfstyle = null;
if (charstyleidx == null) {
cttfstyle = tm.InitTextStyle;
fp = cttfstyle.PreferredEngine (Application.platform);
#if ! TTFTEXT_LITE
cfont = 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=cttfstyle.GetFontEngineParameters(0);
}
cfont= TTFTextInternal.TTFTextFontEngine.font_engines[0].GetFont(parameters,currentfontid);
#endif
if (cfont == null) {
throw new System.Exception ("(TTFText) Font not found :" + tm.InitTextStyle.FontId);
}
}
if (charpositions != null && charpositions.Length < txt.Length) {
Debug.LogError ("(TTFText) Bad char position len=" + charpositions.Length + " txt = " + txt + " (len=" + txt.Length + ")");
charpositions = null;
}
int i = 0;
foreach (char c in txt) {
TTFTextOutline o = null;
if (charstyleidx != null) {
if ((cfont == null)
|| (currentfontid != tm.UsedStyles [charstyleidx [i]].GetFontEngineFontId (tm.UsedStyles [charstyleidx [i]].PreferredEngine (Application.platform)))) {
cttfstyle = tm.UsedStyles [charstyleidx [i]];
fp = cttfstyle.PreferredEngine (Application.platform);
//Debug.Log(fp);
#if ! TTFTEXT_LITE
cfont = 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=cttfstyle.GetFontEngineParameters(0);
}
cfont= TTFTextInternal.TTFTextFontEngine.font_engines[0].GetFont(parameters,currentfontid);
#endif
if (cfont == null) {
throw new System.Exception ("Font not found :" + tm.InitTextStyle.FontId);
}
}
}
if ((charmetadata == null) || (charmetadata [i] == null)) {
// a normal character
if (TTFTextFontEngine.font_engines [fp].IsBitmapFontProvider (parameters)) {
TTFTextTexturePortion p = TTFTextFontEngine.font_engines [fp].GetGlyphBitmap (parameters, cfont, c);
o = new TTFTextOutline ();
float w = ((float)p.w);
float h = ((float)p.h);
Vector3 b = new Vector3 (p.x, p.y, 0);
//Vector3[] quad = {Vector3.zero,Vector3.right*w,new Vector3(w,h,0),Vector3.up*h};
Vector3[] quad = {b,b + Vector3.up * h,b + new Vector3 (w, h, 0),b + Vector3.right * w};
o.AddBoundary (quad);
TTFTextInternal.TextureElement tel = new TTFTextInternal.TextureElement ();
tel.width = w;
tel.height = h;
tel.material = p.material;
tel.shouldReleaseMaterial = p.shouldReleaseMaterial;
tel.texture = p.texture;
tel.shouldReleaseTexture = p.shouldReleaseTexture;
tel.UVstartx = p.sx;
tel.UVstarty = p.sy;
tel.UVwidth = p.dx;
tel.UVheight = p.dy;
charmetadata [i] = tel;
} else {
o = TTFTextFontEngine.font_engines [fp].GetGlyphOutline (parameters, cfont, c);
if (charstyleidx != null) {
for (int ii=0; ii<tm.UsedStyles[charstyleidx[i]].GetOutlineEffectStackElementLength(); ii++) {
TTFTextStyle.TTFTextOutlineEffectStackElement tse = tm.InitTextStyle.GetOutlineEffectStackElement (ii);
o = TTFTextOutline.AvailableOutlineEffects [tse.id].Apply (o, tse.parameters);
}
} else {
for (int ii=0; ii<tm.InitTextStyle.GetOutlineEffectStackElementLength(); ii++) {
TTFTextStyle.TTFTextOutlineEffectStackElement tse = tm.InitTextStyle.GetOutlineEffectStackElement (ii);
o = TTFTextOutline.AvailableOutlineEffects [tse.id].Apply (o, tse.parameters);
}
}
}
} else {
// it is some kind of special object (an embedded image... ?)
//Debug.Log("Not yet implemented");
o = new TTFTextOutline ();
float w = 1;
float h = 1;
Vector3[] quad = {Vector3.zero,Vector3.right * w,new Vector3 (w, h, 0),Vector3.up * h};
o.AddBoundary (quad);
}
o = o.Embolden (((charstyleidx != null) ? tm.UsedStyles [charstyleidx [i]].Embold : tm.Embold) + embold);
o.Rescale ((charstyleidx != null) ? tm.UsedStyles [charstyleidx [i]].Size : tm.Size);
if (charpositions == null) {
outline.Append (o, outline.advance);
} else {
outline.Append (o, Vector3.right * charpositions [i]);
}
i += 1;
}
return outline;
}
