/// <summary>Output Text at a certain x and y coordinate.</summary>
/// <remarks>Output Text at a certain x and y coordinate. Clipped or opaque text isn't supported as of yet.</remarks>
/// <param name="x">x-coordinate</param>
/// <param name="y">y-coordinate</param>
/// <param name="flag">flag indicating clipped or opaque</param>
/// <param name="x1">x1-coordinate of the rectangle if clipped or opaque</param>
/// <param name="y1">y1-coordinate of the rectangle if clipped or opaque</param>
/// <param name="x2">x2-coordinate of the rectangle if clipped or opaque</param>
/// <param name="y2">y1-coordinate of the rectangle if clipped or opaque</param>
/// <param name="text">text to output</param>
/// <exception cref="System.IO.IOException"/>
public virtual void OutputText(int x, int y, int flag, int x1, int y1, int x2, int y2, String text)
{
MetaFont font = state.GetCurrentFont();
float refX = state.TransformX(x);
float refY = state.TransformY(y);
float angle = state.TransformAngle(font.GetAngle());
float sin = (float)Math.Sin(angle);
float cos = (float)Math.Cos(angle);
float fontSize = font.GetFontSize(state);
FontProgram fp = font.GetFont();
int align = state.GetTextAlign();
// NOTE, MetaFont always creates with CP1252 encoding.
int normalizedWidth = 0;
byte[] bytes = font.encoding.ConvertToBytes(text);
foreach (byte b in bytes)
{
normalizedWidth += fp.GetWidth(0xff & b);
}
float textWidth = fontSize / FontProgram.UNITS_NORMALIZATION * normalizedWidth;
float tx = 0;
float ty = 0;
float descender = fp.GetFontMetrics().GetTypoDescender();
float ury = fp.GetFontMetrics().GetBbox()[3];
cb.SaveState();
cb.ConcatMatrix(cos, sin, -sin, cos, refX, refY);
if ((align & MetaState.TA_CENTER) == MetaState.TA_CENTER)
{
tx = -textWidth / 2;
}
else
{
if ((align & MetaState.TA_RIGHT) == MetaState.TA_RIGHT)
{
tx = -textWidth;
}
}
if ((align & MetaState.TA_BASELINE) == MetaState.TA_BASELINE)
{
ty = 0;
}
else
{
if ((align & MetaState.TA_BOTTOM) == MetaState.TA_BOTTOM)
{
ty = -descender;
}
else
{
ty = -ury;
}
}
Color textColor;
if (state.GetBackgroundMode() == MetaState.OPAQUE)
{
textColor = state.GetCurrentBackgroundColor();
cb.SetFillColor(textColor);
cb.Rectangle(tx, ty + descender, textWidth, ury - descender);
cb.Fill();
}
textColor = state.GetCurrentTextColor();
cb.SetFillColor(textColor);
cb.BeginText();
cb.SetFontAndSize(PdfFontFactory.CreateFont(state.GetCurrentFont().GetFont(), PdfEncodings.CP1252, true),
fontSize);
cb.SetTextMatrix(tx, ty);
cb.ShowText(text);
cb.EndText();
if (font.IsUnderline())
{
cb.Rectangle(tx, ty - fontSize / 4, textWidth, fontSize / 15);
cb.Fill();
}
if (font.IsStrikeout())
{
cb.Rectangle(tx, ty + fontSize / 3, textWidth, fontSize / 15);
cb.Fill();
}
cb.RestoreState();
}
