protected internal virtual TextString convertToCharacters(string text, Graphics2D g, FontFactory fontFactory, ColorFactory colorFactory)
{
TextString characters = new TextString();
FontRenderContext frc = g.getFontRenderContext();
double lastx = 0;
for (int i = 0; i < text.Length; i++)
{
Font font = fontFactory.getFont(i);
char c = text[i];
FontMetrics fm = g.getFontMetrics(font);
Rectangle2D bounds = font.getStringBounds(Convert.ToString(c), frc);
TextCharacter tc = new TextCharacter();
tc.Character = c;
tc.Font = font;
tc.Width = fm.charWidth(c);
tc.Height = fm.getAscent() + fm.getDescent();
tc.Ascent = fm.getAscent();
tc.Descent = fm.getDescent();
tc.X = lastx;
tc.Y = 0;
tc.Font = font;
tc.Color = colorFactory.getColor(i);
lastx += bounds.getWidth();
characters.addCharacter(tc);
}
return(characters);
}
public void draw(string text, BufferedImage canvas, FontFactory fontFactory, ColorFactory colorFactory)
{
Graphics2D g = (Graphics2D)canvas.getGraphics();
TextString ts = convertToCharacters(text, g, fontFactory, colorFactory);
arrangeCharacters(canvas.getWidth(), canvas.getHeight(), ts);
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
foreach (TextCharacter tc in ts.Characters)
{
g.setColor(tc.Color);
g.drawString(tc.iterator(), (float)tc.X, (float)tc.Y);
}
}
protected internal override void arrangeCharacters(int width, int height, TextString ts)
{
double widthRemaining = (width - ts.Width - leftMargin - rightMargin) / ts.Characters.Count;
double vmiddle = height / 2;
double x = leftMargin + widthRemaining / 2;
Random r = new Random();
height -= topMargin + bottomMargin;
foreach (TextCharacter tc in ts.Characters)
{
double heightRemaining = height - tc.Height;
double y = vmiddle + 0.35 * tc.Ascent + (1 - 2 * r.NextDouble()) * heightRemaining;
tc.X = x;
tc.Y = y;
x += tc.Width + widthRemaining;
}
}
protected internal abstract void arrangeCharacters(int width, int height, TextString ts);
