/// <summary>
/// Static utility method to cut off a string to fit in a text area.
/// </summary>
public static void FitCaptionToArea(string caption, ref Mogre.TextAreaOverlayElement area, float maxWidth)
{
Mogre.FontPtr font = null;
if (Mogre.FontManager.Singleton.ResourceExists(area.FontName))
{
font = (Mogre.FontPtr)Mogre.FontManager.Singleton.GetByName(area.FontName);
if (!font.IsLoaded)
{
font.Load();
}
}
else
{
OGRE_EXCEPT("this font:", area.FontName, "is not exist");
}
Mogre.FontPtr f = font;
string s = DisplayStringToString(caption);
//int nl = s.find('\n');
//if (nl != string.npos)
// s = s.substr(0, nl);
int nl = s.IndexOf('\n');
if (nl != -1)
{
s = s.Substring(0, nl);
}
float width = 0;
for (int i = 0; i < s.Length; i++)
{
if (s[i] == ' ' && area.SpaceWidth != 0)
{
width += area.SpaceWidth;
}
else
{
width += f.GetGlyphAspectRatio(s[i]) * area.CharHeight;
}
if (width > maxWidth)
{
s = s.Substring(0, i);
break;
}
}
area.Caption = (s);
}
//public static Vector2 cursorOffset(Mogre.OverlayContainer containerElement,Vector2 cursorPos)
//{
// Mogre.OverlayManager om = Mogre.OverlayManager.Singleton;
// return new Mogre.Vector2(cursorPos.x - (containerElement._getDerivedLeft() * om.ViewportWidth + containerElement.Width / 2), cursorPos.y - (containerElement._getDerivedTop() * om.ViewportHeight + containerElement.Height / 2f));
//}
/// <summary>
/// Static utility method used to get the width of a caption in a text area.
/// </summary>
protected static float GetCaptionWidth(string caption, ref TextAreaOverlayElement area)
{
Mogre.FontPtr font = null;
if (Mogre.FontManager.Singleton.ResourceExists(area.FontName))
{
font = (Mogre.FontPtr)Mogre.FontManager.Singleton.GetByName(area.FontName);
if (!font.IsLoaded)
{
font.Load();
}
}
else
{
OGRE_EXCEPT("this font:", area.FontName, "is not exist");
}
//Font font = new Font(ft.Creator, ft.Name, ft.Handle, ft.Group, ft.IsManuallyLoaded);
string current = DisplayStringToString(caption);
float lineWidth = 0f;
for (int i = 0; i < current.Length; i++)
{
// be sure to provide a line width in the text area
if (current[i] == ' ')
{
if (area.SpaceWidth != 0)
{
lineWidth += area.SpaceWidth;
}
else
{
lineWidth += font.GetGlyphAspectRatio(' ') * area.CharHeight;
}
}
else if (current[i] == '\n')
{
break;
}
// use glyph information to calculate line width
else
{
lineWidth += font.GetGlyphAspectRatio(current[i]) * area.CharHeight;
}
}
return(lineWidth);
}
protected static float GetCaptionHeight(string caption, ref TextAreaOverlayElement area)
{
Mogre.FontPtr font = null;
if (Mogre.FontManager.Singleton.ResourceExists(area.FontName))
{
font = (Mogre.FontPtr)Mogre.FontManager.Singleton.GetByName(area.FontName);
if (!font.IsLoaded)
{
font.Load();
}
}
else
{
OGRE_EXCEPT("this font:", area.FontName, "is not exist");
}
//Font font = new Font(ft.Creator, ft.Name, ft.Handle, ft.Group, ft.IsManuallyLoaded);
string current = DisplayStringToString(caption);
float lineHeight = 0f;
for (int i = 0; i < current.Length; i++)
{
if (current[i] == '\n')
{
var aspectRatio = font.GetGlyphAspectRatio(current[i]);
if (aspectRatio <= 0)
{
lineHeight += aspectRatio * area.CharHeight;
}
else
{
lineHeight += area.CharHeight;
}
}
else if (i == current.Length - 1)
{
lineHeight += area.CharHeight;
}
}
return(lineHeight);
}
