Chap1015.cs


1:	using System;
2:	using System.IO;
3:
4:	using iTextSharp.text;
5:	using iTextSharp.text.pdf;
6:
7:	namespace iTextSharp.tutorial.Chap10
8:	{
9:	public class Chap1015
10:	{
11:
12:	public Chap1015()
13:	{
14:
15:	Console.WriteLine("Chapter 10 Example 15: Tiled Patterns");
16:
17:	// step 1: creation of a document-object
18:	Document document = new Document();
19:
20:	try
21:	{
22:
23:	// step 2:
24:	// we create a writer that listens to the document
25:	// and directs a PDF-stream to a file
26:	PdfWriter writer = PdfWriter.GetInstance(document, new FileStream("Chap1015.pdf", FileMode.Create));
27:
28:	// step 3: we open the document
29:	document.Open();
30:
31:	// step 4: we grab the ContentByte and do some stuff with it
32:	PdfContentByte cb = writer.DirectContent;
33:
34:	BaseFont bf = BaseFont.CreateFont("Times-Roman", "winansi", false);
35:
36:	// step 5: we create some PdfPatternPainter instances for drawing path, text, or placing image
37:
38:	// Image instance to be placed in PdfPatternPainter canvas. Any nice one?
39:	Image img = Image.GetInstance("pngnow.png");
40:
41:	PdfPatternPainter p = cb.CreatePattern(60f, 60f, 60f, 60f);
42:	PdfPatternPainter p1 = cb.CreatePattern(60f, 60f, 60f, 60f);
43:	PdfPatternPainter p2 = cb.CreatePattern(img.ScaledWidth, img.ScaledHeight, img.ScaledWidth, img.ScaledHeight);
44:
45:
46:	// step 6: put your drawing instruction in the painter canvas
47:
48:	// A star pattern taken from Adobe PDF Reference Book p.207
49:	String star = "0.3 g\n15.000 27.000 m\n"
50:	+ "7.947 5.292 l\n26.413 18.708 l\n"
51:	+ "3.587 18.708 l\n22.053 5.292 l\nf\n"
52:	+ "45.000 57.000 m\n37.947 35.292 l\n"
53:	+ "56.413 48.708 l\n33.587 48.708 l\n"
54:	+ "52.053 35.292 l\nf\n"
55:	+ "0.7 g\n15.000 57.000 m\n"
56:	+ "7.947 35.292 l\n26.413 48.708 l\n"
57:	+ "3.587 48.708 l\n22.053 35.292 l\nf\n"
58:	+ "45.000 27.000 m\n37.947 5.292 l\n"
59:	+ "56.413 18.708 l\n33.587 18.708 l\n"
60:	+ "52.053 5.292 l\nf";
61:
62:	p.SetLiteral(star);
63:
64:	// A Pattern with some text drawing
65:	p1.SetGrayFill(0.3f);
66:	p1.SetFontAndSize(bf, 12);
67:	p1.BeginText();
68:	p1.SetTextMatrix(1f, 0f, 0f, 1f, 0f, 0f);
69:	p1.ShowText("A B C D");
70:	p1.EndText();
71:	p1.MoveTo(0f, 0f);
72:	p1.LineTo(60f, 60f);
73:	p1.Stroke();
74:
75:	// A pattern with an image and position
76:	p2.AddImage(img, img.ScaledWidth, 0f, 0f, img.ScaledHeight, 0f, 0f);
77:	p2.SetPatternMatrix(1f, 0f, 0f, 1f, 60f, 60f);
78:
79:	// See if we can apply the pattern color to chunk, phrase or paragraph
80:	PatternColor pat = new PatternColor(p);
81:	PatternColor pat1 = new PatternColor(p1);
82:	PatternColor pat2 = new PatternColor(p2);
83:	String text = "Text with pattern";
84:	document.Add(new Paragraph(text, FontFactory.GetFont(FontFactory.HELVETICA, 60, Font.BOLD, new GrayColor(0.3f))));
85:	document.Add(new Paragraph(text, FontFactory.GetFont(FontFactory.HELVETICA, 60, Font.BOLD, pat)));
86:
87:	// draw a rectangle filled with star pattern
88:	cb.SetPatternFill(p);
89:	cb.SetGrayStroke(0.0f);
90:	cb.Rectangle(20, 20, 284, 120);
91:	cb.FillStroke();
92:
93:	// draw some characters filled with star.
94:	// Note: A gray, rgb, cmyk or spot color should be applied first
95:	// otherwise, you will not be able to see the character glyph
96:	// since the glyph path is filled by pattern
97:	cb.BeginText();
98:	cb.SetFontAndSize(bf, 1);
99:	cb.SetTextMatrix(270f, 0f, 0f, 270f, 20f, 100f);
100:	cb.SetGrayFill(0.9f);
101:	cb.ShowText("ABC");
102:	cb.SetPatternFill(p);
103:	cb.MoveTextWithLeading(0.0f, 0.0f);
104:	cb.ShowText("ABC");
105:	cb.EndText();
106:	cb.SetPatternFill(p);
107:
108:	// draw a circle. Similar to rectangle
109:	cb.SetGrayStroke(0.0f);
110:	cb.Circle(150f, 400f, 150f);
111:	cb.FillStroke();
112:
113:	// New Page to draw text in the pattern painter's canvas
114:	document.NewPage();
115:
116:	document.Add(new Paragraph(text, FontFactory.GetFont(FontFactory.HELVETICA, 60, Font.BOLD, new GrayColor(0.3f))));
117:	document.Add(new Paragraph(text, FontFactory.GetFont(FontFactory.HELVETICA, 60, Font.BOLD, pat1)));
118:	// draw a rectangle
119:	cb.SetPatternFill(p1);
120:	cb.SetGrayStroke(0.0f);
121:	cb.Rectangle(0, 0, 284, 120);
122:	cb.FillStroke();
123:
124:	// draw some characters
125:	cb.BeginText();
126:	cb.SetFontAndSize(bf, 1);
127:	cb.SetTextMatrix(270f, 0f, 0f, 270f, 20f, 100f);
128:	cb.SetGrayFill(0.9f);
129:	cb.ShowText("ABC");
130:	cb.SetPatternFill(p1);
131:	cb.MoveTextWithLeading(0.0f, 0.0f);
132:	cb.ShowText("ABC");
133:	cb.EndText();
134:
135:	// draw a circle
136:	cb.SetPatternFill(p1);
137:	cb.SetGrayStroke(0.0f);
138:	cb.Circle(150f, 400f, 150f);
139:	cb.FillStroke();
140:
141:	// New page to place image in the pattern painter's canvas
142:	document.NewPage();
143:	document.Add(new Paragraph(text, FontFactory.GetFont(FontFactory.HELVETICA, 60, Font.BOLD, new GrayColor(0.3f))));
144:	document.Add(new Paragraph(text, FontFactory.GetFont(FontFactory.HELVETICA, 60, Font.BOLD, pat2)));
145:	// The original Image for comparison reason.
146:	// Note: The width and height is the same as bbox in pattern
147:	cb.AddImage(img, img.ScaledWidth, 0f, 0f, img.ScaledHeight, 350f, 400f);
148:
149:	// draw a rectangle
150:	cb.SetPatternFill(p2);
151:	cb.SetGrayStroke(0.0f);
152:	cb.Rectangle(60, 60, 300, 120);
153:	cb.FillStroke();
154:
155:	// draw some characters.
156:	// Note: if the image fills up the pattern, there's no need to draw text twice
157:	// since colors in image will be clipped to character glyph path
158:	cb.BeginText();
159:	cb.SetFontAndSize(bf, 1);
160:	cb.SetTextMatrix(270f, 0f, 0f, 270f, 60f, 120f);
161:	cb.SetPatternFill(p2);
162:	cb.ShowText("ABC");
163:	cb.EndText();
164:
165:	// draw a circle
166:	cb.SetPatternFill(p2);
167:	cb.SetGrayStroke(0.0f);
168:	cb.Circle(150f, 400f, 150f);
169:	cb.FillStroke();
170:	}
171:	catch(Exception e)
172:	{
173:	Console.Error.WriteLine(e.Message);
174:	Console.Error.WriteLine(e.StackTrace);
175:	}
176:
177:	// finally, we close the document
178:	document.Close();
179:	}
180:	}
181:	}

Blog