src/texsourc/lib/libhpdf/if/c#/demo/LineDemo.cs

   1 /*
   2  * << Haru Free PDF Library 2.0.5 >> -- LineDemo.cs
   3  *
   4  * Copyright (c) 1999-2006 Takeshi Kanno <takeshi_kanno@est.hi-ho.ne.jp>
   5  *
   6  * Permission to use, copy, modify, distribute and sell this software
   7  * and its documentation for any purpose is hereby granted without fee,
   8  * provided that the above copyright notice appear in all copies and
   9  * that both that copyright notice and this permission notice appear
  10  * in supporting documentation.
  11  * It is provided "as is" without express or implied warranty.
  12  *
  13  */
  14
  15 using System;
  16 using System.IO;
  17 using HPdf;
  18
  19
  20 public class LineDemo {
  21     private static void DrawLine(HPdfPage page, float x, float y, string label) {
  22         page.BeginText();
  23         page.MoveTextPos(x, y - 10);
  24         page.ShowText(label);
  25         page.EndText();
  26
  27         page.MoveTo(x, y - 15);
  28         page.LineTo(x + 220, y - 15);
  29         page.Stroke();
  30     }
  31
  32     private static void DrawLine2(HPdfPage page, float x, float y, string label) {
  33         page.BeginText();
  34         page.MoveTextPos(x, y);
  35         page.ShowText(label);
  36         page.EndText();
  37
  38         page.MoveTo(x + 30, y - 25);
  39         page.LineTo(x + 160, y - 25);
  40         page.Stroke();
  41     }
  42
  43     private static void DrawRect(HPdfPage page, float x, float y, string label) {
  44         page.BeginText();
  45         page.MoveTextPos(x, y - 10);
  46         page.ShowText(label);
  47         page.EndText();
  48
  49         page.Rectangle(x, y - 40, 220, 25);
  50     }
  51
  52     public static void Main() {
  53         Console.WriteLine("libhpdf-" + HPdfDoc.HPdfGetVersion());
  54
  55         try {
  56             const string page_title = "LineDemo";
  57
  58             HPdfDoc pdf = new HPdfDoc();
  59
  60             /* create default-font */
  61             HPdfFont font = pdf.GetFont ("Helvetica", null);
  62
  63             /* add a new page object. */
  64             HPdfPage page = pdf.AddPage();
  65
  66             /* print the lines of the page. */
  67             page.SetLineWidth(1);
  68             page.Rectangle(50, 50, page.GetWidth() - 100,
  69                         page.GetHeight() - 110);
  70             page.Stroke();
  71
  72             /* print the title of the page (with positioning center). */
  73             page.SetFontAndSize(font, 24);
  74             float tw = page.TextWidth(page_title);
  75             page.BeginText();
  76             page.MoveTextPos ((page.GetWidth() - tw) / 2,
  77                         page.GetHeight() - 50);
  78             page.ShowText(page_title);
  79             page.EndText();
  80
  81             page.SetFontAndSize(font, 10);
  82
  83             /* Draw verious widths of lines. */
  84             page.SetLineWidth(0);
  85             DrawLine(page, 60, 770, "line width = 0");
  86
  87             page.SetLineWidth(1.0f);
  88             DrawLine(page, 60, 740, "line width = 1.0");
  89
  90             page.SetLineWidth(2.0f);
  91             DrawLine(page, 60, 710, "line width = 2.0");
  92
  93             /* Line dash pattern */
  94             ushort[] dash_mode1 = new ushort[] {3};
  95             ushort[] dash_mode2 = new ushort[] {3, 7};
  96             ushort[] dash_mode3 = new ushort[] {8, 7, 2, 7};
  97
  98             page.SetLineWidth(1.0f);
  99
 100             page.SetDash(dash_mode1, 1);
 101             DrawLine(page, 60, 680, "dash_ptn=[3], phase=1 -- 2 on, 3 off, 3 on...");
 102
 103             Console.Error.WriteLine("001");
 104             page.SetDash(dash_mode2, 2);
 105             DrawLine(page, 60, 650, "dash_ptn=[7, 3], phase=2 -- 5 on 3 off, 7 on,...");
 106
 107             page.SetDash(dash_mode3, 0);
 108             DrawLine(page, 60, 620, "dash_ptn=[8, 7, 2, 7], phase=0");
 109
 110             page.SetDash(null, 0);
 111
 112             page.SetLineWidth(30);
 113             page.SetRGBStroke(0.0f, 0.5f, 0.0f);
 114
 115             /* Line Cap Style */
 116             page.SetLineCap(HPdfLineCap.HPDF_BUTT_END);
 117             DrawLine2(page, 60, 570, "HPDF_BUTT_END");
 118
 119             page.SetLineCap(HPdfLineCap.HPDF_ROUND_END);
 120             DrawLine2(page, 60, 505, "HPDF_ROUND_END");
 121
 122             page.SetLineCap(HPdfLineCap.HPDF_PROJECTING_SCUARE_END);
 123             DrawLine2(page, 60, 440, "HPDF_PROJECTING_SCUARE_END");
 124
 125             /* Line Join Style */
 126             page.SetLineWidth(30);
 127             page.SetRGBStroke(0.0f, 0.0f, 0.5f);
 128
 129             page.SetLineJoin(HPdfLineJoin.HPDF_MITER_JOIN);
 130             page.MoveTo(120, 300);
 131             page.LineTo(160, 340);
 132             page.LineTo(200, 300);
 133             page.Stroke();
 134
 135             page.BeginText();
 136             page.MoveTextPos(60, 360);
 137             page.ShowText("HPDF_MITER_JOIN");
 138             page.EndText();
 139
 140             page.SetLineJoin(HPdfLineJoin.HPDF_ROUND_JOIN);
 141             page.MoveTo(120, 195);
 142             page.LineTo(160, 235);
 143             page.LineTo(200, 195);
 144             page.Stroke();
 145
 146             page.BeginText();
 147             page.MoveTextPos(60, 255);
 148             page.ShowText("HPDF_ROUND_JOIN");
 149             page.EndText();
 150
 151             page.SetLineJoin(HPdfLineJoin.HPDF_BEVEL_JOIN);
 152             page.MoveTo(120, 90);
 153             page.LineTo(160, 130);
 154             page.LineTo(200, 90);
 155             page.Stroke();
 156
 157             page.BeginText();
 158             page.MoveTextPos(60, 150);
 159             page.ShowText("HPDF_BEVEL_JOIN");
 160             page.EndText();
 161
 162             /* Draw Rectangle */
 163             page.SetLineWidth(2);
 164             page.SetRGBStroke(0, 0, 0);
 165             page.SetRGBFill(0.75f, 0.0f, 0.0f);
 166
 167             DrawRect(page, 300, 770, "Stroke");
 168             page.Stroke();
 169
 170             DrawRect(page, 300, 720, "Fill");
 171             page.Fill();
 172
 173             DrawRect(page, 300, 670, "Fill then Stroke");
 174             page.FillStroke();
 175
 176             /* Clip Rect */
 177             page.GSave();  /* Save the current graphic state */
 178             DrawRect(page, 300, 620, "Clip Rectangle");
 179             page.Clip();
 180             page.Stroke();
 181             page.SetFontAndSize(font, 13);
 182
 183             page.BeginText();
 184             page.MoveTextPos(290, 600);
 185             page.SetTextLeading(12);
 186             page.ShowText("Clip Clip Clip Clip Clip Clipi Clip Clip Clip");
 187             page.ShowTextNextLine("Clip Clip Clip Clip Clip Clip Clip Clip Clip");
 188             page.ShowTextNextLine("Clip Clip Clip Clip Clip Clip Clip Clip Clip");
 189             page.EndText();
 190             page.GRestore();
 191
 192             /* Curve Example(CurveTo2) */
 193             float x = 330;
 194             float y = 440;
 195             float x1 = 430;
 196             float y1 = 530;
 197             float x2 = 480;
 198             float y2 = 470;
 199             float x3 = 480;
 200             float y3 = 90;
 201
 202             page.SetRGBFill(0, 0, 0);
 203
 204             page.BeginText();
 205             page.MoveTextPos(300, 540);
 206             page.ShowText("CurveTo2(x1, y1, x2. y2)");
 207             page.EndText();
 208
 209             page.BeginText();
 210             page.MoveTextPos(x + 5, y - 5);
 211             page.ShowText("Current point");
 212             page.MoveTextPos(x1 - x, y1 - y);
 213             page.ShowText("(x1, y1)");
 214             page.MoveTextPos(x2 - x1, y2 - y1);
 215             page.ShowText("(x2, y2)");
 216             page.EndText();
 217
 218             page.SetDash(dash_mode1, 0);
 219
 220             page.SetLineWidth(0.5f);
 221             page.MoveTo(x1, y1);
 222             page.LineTo(x2, y2);
 223             page.Stroke();
 224
 225             page.SetDash(null, 0);
 226
 227             page.SetLineWidth(1.5f);
 228
 229             page.MoveTo(x, y);
 230             page.CurveTo2(x1, y1, x2, y2);
 231             page.Stroke();
 232
 233             /* Curve Example(CurveTo3) */
 234             y -= 150;
 235             y1 -= 150;
 236             y2 -= 150;
 237
 238             page.BeginText();
 239             page.MoveTextPos(300, 390);
 240             page.ShowText("CurveTo3(x1, y1, x2. y2)");
 241             page.EndText();
 242
 243             page.BeginText();
 244             page.MoveTextPos(x + 5, y - 5);
 245             page.ShowText("Current point");
 246             page.MoveTextPos(x1 - x, y1 - y);
 247             page.ShowText("(x1, y1)");
 248             page.MoveTextPos(x2 - x1, y2 - y1);
 249             page.ShowText("(x2, y2)");
 250             page.EndText();
 251
 252             page.SetDash(dash_mode1, 0);
 253
 254             page.SetLineWidth(0.5f);
 255             page.MoveTo(x, y);
 256             page.LineTo(x1, y1);
 257             page.Stroke();
 258
 259             page.SetDash(null, 0);
 260
 261             page.SetLineWidth(1.5f);
 262             page.MoveTo(x, y);
 263             page.CurveTo3(x1, y1, x2, y2);
 264             page.Stroke();
 265
 266             /* Curve Example(CurveTo) */
 267             y -= 150;
 268             y1 -= 160;
 269             y2 -= 130;
 270             x2 += 10;
 271
 272             page.BeginText();
 273             page.MoveTextPos(300, 240);
 274             page.ShowText("CurveTo(x1, y1, x2. y2, x3, y3)");
 275             page.EndText();
 276
 277             page.BeginText();
 278             page.MoveTextPos(x + 5, y - 5);
 279             page.ShowText("Current point");
 280             page.MoveTextPos(x1 - x, y1 - y);
 281             page.ShowText("(x1, y1)");
 282             page.MoveTextPos(x2 - x1, y2 - y1);
 283             page.ShowText("(x2, y2)");
 284             page.MoveTextPos(x3 - x2, y3 - y2);
 285             page.ShowText("(x3, y3)");
 286             page.EndText();
 287
 288             page.SetDash(dash_mode1, 0);
 289
 290             page.SetLineWidth(0.5f);
 291             page.MoveTo(x, y);
 292             page.LineTo(x1, y1);
 293             page.Stroke();
 294             page.MoveTo(x2, y2);
 295             page.LineTo(x3, y3);
 296             page.Stroke();
 297
 298             page.SetDash(null, 0);
 299
 300             page.SetLineWidth(1.5f);
 301             page.MoveTo(x, y);
 302             page.CurveTo(x1, y1, x2, y2, x3, y3);
 303             page.Stroke();
 304
 305             pdf.SaveToFile("LineDemo.pdf");
 306         } catch (Exception e) {
 307             Console.Error.WriteLine(e.Message);
 308         }
 309     }
 310 }
 311
 312
 313