public static void Main()
{
const string page_title = "Text Demo";
const string samp_text = "abcdefgABCDEFG123!#$%&+-@?";
const string samp_text2 = "The quick brown fox jumps over the lazy dog.";
Console.WriteLine("libhpdf-" + HPdfDoc.HPdfGetVersion());
try {
HPdfDoc pdf = new HPdfDoc();
pdf.SetCompressionMode(HPdfDoc.HPDF_COMP_ALL);
/* create default-font */
HPdfFont font = pdf.GetFont("Helvetica", null);
/* add a new page object. */
HPdfPage page = pdf.AddPage();
/*print the title of the page (with positioning center). */
page.SetFontAndSize(font, 24);
float tw = page.TextWidth(page_title);
page.BeginText();
page.TextOut((page.GetWidth() - tw) / 2,
page.GetHeight() - 50, page_title);
page.EndText();
page.BeginText();
page.MoveTextPos(60, page.GetHeight() - 60);
/*
* font size
*/
float fsize = 8;
while (fsize < 60)
{
/* set style and size of font. */
page.SetFontAndSize(font, fsize);
/* set the position of the text. */
page.MoveTextPos(0, -5 - fsize);
/* measure the number of characters which included in the page. */
uint tlen = page.MeasureText(samp_text,
page.GetWidth() - 120, false);
page.ShowText(samp_text.Substring(0, (int)tlen));
/* print the description. */
page.MoveTextPos(0, -10);
page.SetFontAndSize(font, 8);
page.ShowText("Fontsize=" + fsize);
fsize *= 1.5f;
}
/*
* font color
*/
page.SetFontAndSize(font, 8);
page.MoveTextPos(0, -30);
page.ShowText("Font color");
page.SetFontAndSize(font, 18);
page.MoveTextPos(0, -20);
int len = samp_text.Length;
for (int i = 0; i < len; i++)
{
string buf;
float r = (float)i / (float)len;
float g = 1 - ((float)i / (float)len);
buf = samp_text.Substring(i, 1);
page.SetRGBFill(r, g, 0);
page.ShowText(buf);
}
page.MoveTextPos(0, -25);
for (int i = 0; i < len; i++)
{
string buf;
float r = (float)i / (float)len;
float b = 1 - ((float)i / (float)len);
buf = samp_text.Substring(i, 1);
page.SetRGBFill(r, 0, b);
page.ShowText(buf);
}
page.MoveTextPos(0, -25);
for (int i = 0; i < len; i++)
{
string buf;
float b = (float)i / (float)len;
float g = 1 - ((float)i / (float)len);
buf = samp_text.Substring(i, 1);
page.SetRGBFill(0, g, b);
page.ShowText(buf);
}
page.EndText();
int ypos = 450;
/*
* Font rendering mode
*/
page.SetFontAndSize(font, 32);
page.SetRGBFill(0.5f, 0.5f, 0);
page.SetLineWidth(1.5f);
/* PDF_FILL */
ShowDescription(page, 60, ypos,
"RenderingMode=PDF_FILL");
page.SetTextRenderingMode(HPdfTextRenderingMode.HPDF_FILL);
page.BeginText();
page.TextOut(60, ypos, "ABCabc123");
page.EndText();
/*PDF_STROKE */
ShowDescription(page, 60, ypos - 50,
"RenderingMode=PDF_STROKE");
page.SetTextRenderingMode(HPdfTextRenderingMode.HPDF_STROKE);
page.BeginText();
page.TextOut(60, ypos - 50, "ABCabc123");
page.EndText();
/*PDF_FILL_THEN_STROKE */
ShowDescription(page, 60, ypos - 100,
"RenderingMode=PDF_FILL_THEN_STROKE");
page.SetTextRenderingMode(HPdfTextRenderingMode.HPDF_FILL_THEN_STROKE);
page.BeginText();
page.TextOut(60, ypos - 100, "ABCabc123");
page.EndText();
/*PDF_FILL_CLIPPING */
ShowDescription(page, 60, ypos - 150,
"RenderingMode=PDF_FILL_CLIPPING");
page.GSave();
page.SetTextRenderingMode(HPdfTextRenderingMode.HPDF_FILL_CLIPPING);
page.BeginText();
page.TextOut(60, ypos - 150, "ABCabc123");
page.EndText();
ShowStripePattern(page, 60, ypos - 150);
page.GRestore();
/*PDF_STROKE_CLIPPING */
ShowDescription(page, 60, ypos - 200,
"RenderingMode=PDF_STROKE_CLIPPING");
page.GSave();
page.SetTextRenderingMode(HPdfTextRenderingMode.HPDF_STROKE_CLIPPING);
page.BeginText();
page.TextOut(60, ypos - 200, "ABCabc123");
page.EndText();
ShowStripePattern(page, 60, ypos - 200);
page.GRestore();
/*PDF_FILL_STROKE_CLIPPING */
ShowDescription(page, 60, ypos - 250,
"RenderingMode=PDF_FILL_STROKE_CLIPPING");
page.GSave();
page.SetTextRenderingMode(HPdfTextRenderingMode.HPDF_FILL_STROKE_CLIPPING);
page.BeginText();
page.TextOut(60, ypos - 250, "ABCabc123");
page.EndText();
ShowStripePattern(page, 60, ypos - 250);
page.GRestore();
/*Reset text attributes */
page.SetTextRenderingMode(HPdfTextRenderingMode.HPDF_FILL);
page.SetRGBFill(0, 0, 0);
page.SetFontAndSize(font, 30);
/*
* Rotating text
*/
float angle1 = 30; /* A rotation of 30 degrees. */
float rad1 = angle1 / 180 * 3.141592f; /* Calcurate the radian value. */
ShowDescription(page, 320, ypos - 60, "Rotating text");
page.BeginText();
page.SetTextMatrix((float)Math.Cos(rad1), (float)Math.Sin(rad1),
-(float)Math.Sin(rad1), (float)Math.Cos(rad1),
330, ypos - 60);
page.ShowText("ABCabc123");
page.EndText();
/*
* Skewing text.
*/
ShowDescription(page, 320, ypos - 120, "Skewing text");
page.BeginText();
angle1 = 10;
float angle2 = 20;
rad1 = angle1 / 180 * 3.141592f;
float rad2 = angle2 / 180 * 3.141592f;
page.SetTextMatrix(1, (float)Math.Tan(rad1), (float)Math.Tan(rad2), 1,
320, ypos - 120);
page.ShowText("ABCabc123");
page.EndText();
/*
* scaling text (X direction)
*/
ShowDescription(page, 320, ypos - 175, "Scaling text (X direction)");
page.BeginText();
page.SetTextMatrix(1.5f, 0, 0, 1, 320, ypos - 175);
page.ShowText("ABCabc12");
page.EndText();
/*
* scaling text (Y direction)
*/
ShowDescription(page, 320, ypos - 250, "Scaling text (Y direction)");
page.BeginText();
page.SetTextMatrix(1, 0, 0, 2, 320, ypos - 250);
page.ShowText("ABCabc123");
page.EndText();
/*
* char spacing, word spacing
*/
ShowDescription(page, 60, 140, "char-spacing 0");
ShowDescription(page, 60, 100, "char-spacing 1.5");
ShowDescription(page, 60, 60, "char-spacing 1.5, word-spacing 2.5");
page.SetFontAndSize(font, 20);
page.SetRGBFill(0.1f, 0.3f, 0.1f);
/*char-spacing 0 */
page.BeginText();
page.TextOut(60, 140, samp_text2);
page.EndText();
/*char-spacing 1.5 */
page.SetCharSpace(1.5f);
page.BeginText();
page.TextOut(60, 100, samp_text2);
page.EndText();
/*char-spacing 1.5, word-spacing 3.5 */
page.SetWordSpace(2.5f);
page.BeginText();
page.TextOut(60, 60, samp_text2);
page.EndText();
/* save the document to a file */
pdf.SaveToFile("TextDemo.pdf");
} catch (Exception e) {
Console.Error.WriteLine(e.Message);
}
}
