Windows/FooEditEngine/FooPrintText.cs

   1 /*
   2  * Copyright (C) 2013 FooProject
   3  * * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
   4  * the Free Software Foundation; either version 3 of the License, or (at your option) any later version.
   5
   6  * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
   7  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
   8
   9 You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.
  10  */
  11 using System;
  12 using System.Drawing;
  13 using System.Drawing.Printing;
  14
  15 namespace FooEditEngine.Windows
  16 {
  17     /// <summary>
  18     /// イベントデータ
  19     /// </summary>
  20     public class ParseCommandEventArgs
  21     {
  22         /// <summary>
  23         /// ページ番号
  24         /// </summary>
  25         public int PageNumber;
  26         /// <summary>
  27         /// プリンターの設定
  28         /// </summary>
  29         public PrinterSettings PrinterSetting;
  30         /// <summary>
  31         /// 処理前の文字列
  32         /// </summary>
  33         public string Original;
  34         /// <summary>
  35         /// コンストラクター
  36         /// </summary>
  37         /// <param name="nowPage">印刷中のページ番号</param>
  38         /// <param name="setting">プリンターの設定</param>
  39         /// <param name="org">処理前の文字列</param>
  40         public ParseCommandEventArgs(int nowPage,PrinterSettings setting,string org)
  41         {
  42             this.PageNumber = nowPage;
  43             this.PrinterSetting = setting;
  44             this.Original = org;
  45         }
  46     }
  47
  48     /// <summary>
  49     /// コマンド処理用デリゲート
  50     /// </summary>
  51     /// <param name="sender">送信元のクラス</param>
  52     /// <param name="e">イベントデータ</param>
  53     /// <returns>処理後の文字列</returns>
  54     public delegate string ParseCommandHandler(object sender,ParseCommandEventArgs e);
  55
  56     /// <summary>
  57     /// 印刷用のクラス
  58     /// </summary>
  59     public class FooPrintText
  60     {
  61         PrintableView view;
  62         PrintableTextRender render;
  63         int PageNumber;
  64
  65         /// <summary>
  66         /// コンストラクター
  67         /// </summary>
  68         public FooPrintText()
  69         {
  70             this.PrintDocument = new PrintDocument();
  71             this.PrintDocument.PrintPage += new PrintPageEventHandler(PrintDocument_PrintPage);
  72             this.PrintDocument.EndPrint += new PrintEventHandler(PrintDocument_EndPrint);
  73             this.ParseHF = new ParseCommandHandler((s, e) => { return e.Original; });
  74         }
  75
  76         /// <summary>
  77         /// 対象となるドキュメント
  78         /// </summary>
  79         public Document Document
  80         {
  81             get;
  82             set;
  83         }
  84
  85         /// <summary>
  86         /// プリントドキュメント
  87         /// </summary>
  88         public PrintDocument PrintDocument
  89         {
  90             get;
  91             private set;
  92         }
  93
  94         /// <summary>
  95         /// 右から左に表示するなら真
  96         /// </summary>
  97         public bool RightToLeft
  98         {
  99             get;
 100             set;
 101         }
 102
 103         /// <summary>
 104         /// 行番号を表示するかどうか
 105         /// </summary>
 106         public bool DrawLineNumber
 107         {
 108             get;
 109             set;
 110         }
 111
 112         /// <summary>
 113         /// 印刷に使用するフォント
 114         /// </summary>
 115         public Font Font
 116         {
 117             get;
 118             set;
 119         }
 120
 121         /// <summary>
 122         /// 折り返しの方法を指定する
 123         /// </summary>
 124         public LineBreakMethod LineBreakMethod
 125         {
 126             get;
 127             set;
 128         }
 129
 130         /// <summary>
 131         /// 折り返した時の文字数を指定する
 132         /// </summary>
 133         public int LineBreakCharCount
 134         {
 135             get;
 136             set;
 137         }
 138
 139         /// <summary>
 140         /// ヘッダー
 141         /// </summary>
 142         public string Header
 143         {
 144             get;
 145             set;
 146         }
 147
 148         /// <summary>
 149         /// フッター
 150         /// </summary>
 151         public string Footer
 152         {
 153             get;
 154             set;
 155         }
 156
 157         /// <summary>
 158         /// 余白
 159         /// </summary>
 160         public Padding Padding
 161         {
 162             get;
 163             set;
 164         }
 165
 166         /// <summary>
 167         /// 前景色
 168         /// </summary>
 169         public System.Drawing.Color Foreground
 170         {
 171             get;
 172             set;
 173         }
 174
 175         /// <summary>
 176         /// ヘッダーやフッターを処理する
 177         /// </summary>
 178         public ParseCommandHandler ParseHF;
 179
 180         void PrintDocument_PrintPage(object sender, PrintPageEventArgs e)
 181         {
 182             if (this.Font == null || this.Document == null)
 183                 throw new InvalidOperationException();
 184
 185             if (view == null)
 186             {
 187                 this.render = new PrintableTextRender(this.Font, e.Graphics);
 188                 this.render.Foreground = this.Foreground;
 189                 this.render.RightToLeft = this.RightToLeft;
 190                 Document documentSnap = new Document(this.Document);
 191                 documentSnap.LayoutLines.Render = render;
 192                 this.view = new PrintableView(documentSnap, this.render,this.Padding);
 193                 this.view.PageBound = e.MarginBounds;
 194                 this.PageNumber = 1;
 195                 documentSnap.LineBreak = this.LineBreakMethod;
 196                 documentSnap.LineBreakCharCount = this.LineBreakCharCount;
 197                 documentSnap.DrawLineNumber = this.DrawLineNumber;
 198                 documentSnap.UrlMark = this.Document.UrlMark;
 199                 documentSnap.PerformLayout(false);
 200             }
 201
 202             if (e.PageSettings.PrinterSettings.PrintRange == PrintRange.SomePages)
 203             {
 204                 for (; this.PageNumber < e.PageSettings.PrinterSettings.FromPage; this.PageNumber++)
 205                 {
 206                     if (this.view.TryPageDown())
 207                         return;
 208                 }
 209             }
 210
 211             this.view.Header = this.ParseHF(this, new ParseCommandEventArgs(this.PageNumber, e.PageSettings.PrinterSettings,this.Header));
 212             this.view.Footer = this.ParseHF(this, new ParseCommandEventArgs(this.PageNumber, e.PageSettings.PrinterSettings, this.Footer));
 213
 214             this.render.BeginDraw(e.Graphics);
 215
 216             this.view.Draw(e.MarginBounds);
 217
 218             e.HasMorePages = !this.view.TryPageDown();
 219
 220             this.render.EndDraw();
 221
 222             this.PageNumber++;
 223
 224             if (e.HasMorePages && e.PageSettings.PrinterSettings.PrintRange == PrintRange.SomePages && this.PageNumber > e.PageSettings.PrinterSettings.ToPage)
 225                 e.HasMorePages = false;
 226         }
 227
 228         void PrintDocument_EndPrint(object sender, PrintEventArgs e)
 229         {
 230             this.view.Dispose();
 231             this.view = null;
 232             this.render = null;
 233         }
 234
 235     }
 236 }