static PdfFonts() {
using (var graphic = Graphics.FromHwnd(IntPtr.Zero))
using (var fontFamilly = new FontFamily("Arial")) {
FONT_REGULAR = new PdfFont(graphic, fontFamilly, FontStyle.Regular, "Helvetica");
FONT_BOLD = new PdfFont(graphic, fontFamilly, FontStyle.Bold, "Helvetica-Bold");
FONT_OBLIQUE = new PdfFont(graphic, fontFamilly, FontStyle.Italic, "Helvetica−Oblique");
FONT_BOLD_OBLIQUE = new PdfFont(graphic, fontFamilly, FontStyle.Bold | FontStyle.Italic, "Helvetica−BoldOblique");
}
}
/// <summary>
/// Writes a multiple strings centered at the given position.
/// </summary>
/// <param name="lines">Text lines</param>
/// <param name="offset">Offset of the text line</param>
/// <param name="count">Count of lines to write</param>
/// <param name="xPt">X position from the bottom in points</param>
/// <param name="yPt">Y position from the bottom in points</param>
/// <param name="font">Font</param>
/// <param name="fontSize">Font size in em</param>
/// <param name="rgb">RGB color. Blue is the lower byte</param>
/// <param name="linesWidthsPt">Widths of the lines</param>
/// <param name="lineHeightPt">Height of a single line</param>
public void WriteLinesCenter(List<string> lines, int offset, int count
, int xPt, int yPt, PdfFont font, int fontSize, int rgb
, float[] linesWidthsPt, float lineHeightPt) {
yPt += (int)(lineHeightPt * 0.3);
StringBuilder sb = new StringBuilder();
sb.Append("BT ");
sb.Append(FormatRGB(rgb) + " rg "); //font color
sb.Append(font.CodeName + " " + fontSize + " Tf\n"); //font name, size
float y = yPt - lineHeightPt;
count += offset;
for (int i = offset; i < count; i++) {
float x = xPt - linesWidthsPt[i] / 2;
sb.Append("1 0 0 1 " + x + " " + y + " Tm (");
sb.Append(EscapeText(lines[i]));
sb.Append(")Tj\n");
y -= lineHeightPt;
}
sb.Append("ET");
int id = WriteStreamObject(sb);
_currentPage.AddContent(id);
}
/// <summary>
/// Writes the pages numbers
/// </summary>
/// <param name="font">Font</param>
/// <param name="fontSize">Fonr size</param>
/// <param name="xPt">X position from the bottom in points</param>
/// <param name="yPt">Y position from the bottom in points</param>
/// <param name="rgb">RGB color. Blue is the lower byte</param>
public void WritePagesNumbers(PdfFont font, int fontSize, int xPt, int yPt, int rgb) {
string color = FormatRGB(rgb);
int pageCount = _pages.Count;
for (int i = 0; i < pageCount; i++) {
PdfPage page = _pages[i];
string txt = (i + 1) + "/" + pageCount;
float txtWidth = font.MesureWidth(txt, fontSize);
int xPtAbs = xPt < 0 ? (int)(xPt + page.Width - txtWidth) : xPt;
StringBuilder sb = new StringBuilder();
sb.Append("BT ");
sb.Append(color + " rg ");
sb.Append(font.CodeName + " " + fontSize + " Tf ");
sb.Append(xPtAbs + " " + yPt + " Td\n");
sb.Append("(" + txt + ")Tj\n");
sb.Append("ET");
int id = WriteStreamObject(sb);
page.AddContent(id);
}
}
/// <summary>
/// Writes a multiple strings at the given position.
/// </summary>
/// <param name="lines">Text lines</param>
/// <param name="offset">Offset of the text line</param>
/// <param name="count">Count of lines to write</param>
/// <param name="xPt">X position from the bottom in points</param>
/// <param name="yPt">Y position from the bottom in points</param>
/// <param name="font">Font</param>
/// <param name="fontSize">Font size in em</param>
/// <param name="rgb">RGB color. Blue is the lower byte</param>
/// <param name="lineHeightPt">Line height in points</param>
public void WriteLines(List<string> lines, int offset, int count, int xPt
, int yPt, PdfFont font, int fontSize, int rgb, float lineHeightPt) {
yPt += (int)(lineHeightPt * 0.3);
StringBuilder sb = new StringBuilder();
sb.Append("BT ");
sb.Append(FormatRGB(rgb) + " rg "); //font color
sb.Append(font.CodeName + " " + fontSize + " Tf "); //font name, size
sb.Append(lineHeightPt + " TL "); //line height
sb.Append(xPt + " " + yPt + " Td\n"); //x , y
count += offset;
for (int i = offset; i < count; i++) {
sb.Append('(');
sb.Append(EscapeText(lines[i]));
sb.Append(")'\n");
}
sb.Append("ET");
int id = WriteStreamObject(sb);
_currentPage.AddContent(id);
}
