Metro/FooEditEngine/Print/DocumentSource.cs

   1 /*\r
   2  * Copyright (C) 2013 FooProject\r
   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\r
   4  * the Free Software Foundation; either version 3 of the License, or (at your option) any later version.\r
   5 \r
   6  * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of \r
   7  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.\r
   8 \r
   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/>.\r
  10  */\r
  11 using System;\r
  12 using Windows.Graphics.Display;\r
  13 using Windows.Graphics.Printing;\r
  14 using System.Runtime.InteropServices;\r
  15 using Windows.UI;\r
  16 using FooEditEngine.Metro;\r
  17 \r
  18 namespace FooEditEngine\r
  19 {\r
  20     /// <summary>\r
  21     /// イベントデータ\r
  22     /// </summary>\r
  23     public sealed class ParseCommandEventArgs\r
  24     {\r
  25         /// <summary>\r
  26         /// 印刷中のページ番号\r
  27         /// </summary>\r
  28         public int PageNumber;\r
  29         /// <summary>\r
  30         /// ページ範囲内で許容されている最大の番号\r
  31         /// </summary>\r
  32         public int MaxPageNumber;\r
  33         /// <summary>\r
  34         /// 処理前の文字列\r
  35         /// </summary>\r
  36         public string Original;\r
  37         /// <summary>\r
  38         /// コンストラクター\r
  39         /// </summary>\r
  40         /// <param name="nowPage">印刷中のページ番号</param>\r
  41         /// <param name="maxPage">印刷すべき最大のページ番号</param>\r
  42         /// <param name="org">処理前の文字列</param>\r
  43         public ParseCommandEventArgs(int nowPage, int maxPage, string org)\r
  44         {\r
  45             this.PageNumber = nowPage;\r
  46             this.MaxPageNumber = maxPage;\r
  47             this.Original = org;\r
  48         }\r
  49     }\r
  50 \r
  51     /// <summary>\r
  52     /// コマンド処理用デリゲート\r
  53     /// </summary>\r
  54     /// <param name="sender">送信元のクラス</param>\r
  55     /// <param name="e">イベントデータ</param>\r
  56     /// <returns>処理後の文字列</returns>\r
  57     public delegate string ParseCommandHandler(object sender, ParseCommandEventArgs e);\r
  58 \r
  59     sealed class PrintableViewFactory\r
  60     {\r
  61         Windows.UI.Color foreground, comment, keyword1, keyword2, literal, url;\r
  62         string fontName;\r
  63         double fontSize;\r
  64         Document document;\r
  65         LineBreakMethod lineBreakMethod;\r
  66         int lineBreakCharCount, tabCount;\r
  67         bool drawLineNumber, urlMark;\r
  68         IHilighter hilighter;\r
  69         float displayDpi;\r
  70         public PrintableViewFactory(FooTextBox textbox)\r
  71         {\r
  72             this.foreground = textbox.Foreground;\r
  73             this.comment = textbox.Comment;\r
  74             this.keyword1 = textbox.Keyword1;\r
  75             this.keyword2 = textbox.Keyword2;\r
  76             this.literal = textbox.Literal;\r
  77             this.url = textbox.URL;\r
  78             this.fontName = textbox.FontFamily.Source;\r
  79             this.fontSize = textbox.FontSize;\r
  80             this.tabCount = textbox.TabChars;\r
  81             this.document = new Document(textbox.Document);\r
  82             this.lineBreakMethod = textbox.LineBreakMethod;\r
  83             this.lineBreakCharCount = textbox.LineBreakCharCount;\r
  84             this.drawLineNumber = textbox.DrawLineNumber;\r
  85             this.urlMark = textbox.MarkURL;\r
  86             this.hilighter = textbox.Hilighter;\r
  87             this.displayDpi = DisplayInformation.GetForCurrentView().LogicalDpi;\r
  88         }\r
  89         public D2DRenderBase CreateRender(PrintPageDescription pagedesc, IPrintDocumentPackageTarget docPackageTarget)\r
  90         {\r
  91             D2DRenderBase render;\r
  92             Size size = new Size(pagedesc.ImageableRect.Width, pagedesc.ImageableRect.Height);\r
  93             render = new D2DPrintRender(this.fontName, this.fontSize, size, Math.Min(pagedesc.DpiX, pagedesc.DpiY), docPackageTarget);\r
  94             render.Foreground = this.foreground;\r
  95             render.Comment = this.comment;\r
  96             render.Keyword1 = this.keyword1;\r
  97             render.Keyword2 = this.keyword2;\r
  98             render.Literal = this.literal;\r
  99             render.Url = this.url;\r
 100             return render;\r
 101         }\r
 102         public D2DPrintPreviewRender CreateRender(PrintPageDescription pagedesc)\r
 103         {\r
 104             D2DPrintPreviewRender render;\r
 105             Size size = new Size(pagedesc.ImageableRect.Width, pagedesc.ImageableRect.Height);\r
 106             render = new D2DPrintPreviewRender(this.fontName, this.fontSize, size, this.displayDpi);\r
 107             render.Foreground = this.foreground;\r
 108             render.Comment = this.comment;\r
 109             render.Keyword1 = this.keyword1;\r
 110             render.Keyword2 = this.keyword2;\r
 111             render.Literal = this.literal;\r
 112             render.Url = this.url;\r
 113             return render;\r
 114         }\r
 115         public PrintableView CreateView(PrintPageDescription pagedesc, D2DRenderBase render, string header, string footer)\r
 116         {\r
 117             PrintableView view = new PrintableView(this.document, (IPrintableTextRender)render);\r
 118             view.TabStops = this.tabCount;\r
 119             view.LineBreak = this.lineBreakMethod == LineBreakMethod.None ? LineBreakMethod.PageBound : this.lineBreakMethod;\r
 120             view.LineBreakCharCount = this.lineBreakCharCount;\r
 121             view.DrawLineNumber = this.drawLineNumber;\r
 122             view.Header = header;\r
 123             view.Footer = footer;\r
 124             view.UrlMark = this.urlMark;\r
 125             view.PageBound = new Rectangle(pagedesc.ImageableRect.X, pagedesc.ImageableRect.Y, pagedesc.ImageableRect.Width, pagedesc.ImageableRect.Height);\r
 126             view.Hilighter = this.hilighter;\r
 127             view.PerfomLayouts();\r
 128 \r
 129             return view;\r
 130         }\r
 131     }\r
 132 \r
 133     sealed class DocumentSource : IPrintDocumentPageSource, IPrintPreviewPageCollection, IPrintDocumentSource\r
 134     {\r
 135         IPrintPreviewDxgiPackageTarget dxgiPreviewTarget;\r
 136         bool paginateCalled = false;\r
 137         Size imageRect;\r
 138         PrintableViewFactory factory;\r
 139         D2DPrintPreviewRender previewRender;\r
 140         PrintableView previewView;\r
 141         int maxPreviePageCount;\r
 142 \r
 143         public ParseCommandHandler ParseHF;\r
 144         public string Header = string.Empty;\r
 145         public string Fotter = string.Empty;\r
 146 \r
 147         public DocumentSource(FooTextBox textbox)\r
 148         {\r
 149             this.factory = new PrintableViewFactory(textbox);\r
 150         }\r
 151 \r
 152         public void GetPreviewPageCollection(IPrintDocumentPackageTarget docPackageTarget,out IPrintPreviewPageCollection docPageCollection)\r
 153         {\r
 154             Guid guid = new Guid(PreviewPackageIds.IID_PREVIEWPACKAGETARGET_DXGI);\r
 155             IntPtr target;\r
 156             docPackageTarget.GetPackageTarget(guid, guid, out target);\r
 157             this.dxgiPreviewTarget = (IPrintPreviewDxgiPackageTarget)Marshal.GetObjectForIUnknown(target);\r
 158             docPageCollection = (IPrintPreviewPageCollection)this;\r
 159         }\r
 160 \r
 161         public void MakeDocument(object printTaskOptions, IPrintDocumentPackageTarget docPackageTarget)\r
 162         {\r
 163             PrintTaskOptions options = (PrintTaskOptions)printTaskOptions;\r
 164             PrintPageDescription pagedesc = options.GetPageDescription(1);\r
 165 \r
 166             D2DRenderBase render = this.factory.CreateRender(pagedesc, docPackageTarget);\r
 167             PrintableView view = this.factory.CreateView(pagedesc, render, this.Header, this.Fotter);\r
 168 \r
 169             bool result = false;\r
 170             int currentPage = 0;\r
 171 \r
 172             while (!result)\r
 173             {\r
 174                 if(!string.IsNullOrEmpty(this.Header))\r
 175                     view.Header = this.ParseHF(this, new ParseCommandEventArgs(currentPage, -1, this.Header));\r
 176                 if (!string.IsNullOrEmpty(this.Fotter))\r
 177                     view.Footer = this.ParseHF(this, new ParseCommandEventArgs(currentPage, -1, this.Fotter));\r
 178 \r
 179                 render.BeginDraw();\r
 180                 view.Draw(view.PageBound);\r
 181                 render.EndDraw();\r
 182                 result = view.TryPageDown();\r
 183                 currentPage++;\r
 184             }\r
 185 \r
 186             render.Dispose();\r
 187             view.Dispose();\r
 188         }\r
 189 \r
 190         public void Paginate(uint currentJobPage, object printTaskOptions)\r
 191         {\r
 192             PrintTaskOptions options = (PrintTaskOptions)printTaskOptions;\r
 193             PrintPageDescription pagedesc = options.GetPageDescription(currentJobPage);\r
 194 \r
 195             this.imageRect = new Size(pagedesc.ImageableRect.Width, pagedesc.ImageableRect.Height);\r
 196 \r
 197             this.previewRender = this.factory.CreateRender(pagedesc);\r
 198             this.previewView = this.factory.CreateView(pagedesc, this.previewRender, this.Header, this.Fotter);\r
 199 \r
 200             int maxPage = 1;\r
 201             while (!this.previewView.TryPageDown())\r
 202                 maxPage++;\r
 203 \r
 204             this.dxgiPreviewTarget.SetJobPageCount(PageCountType.FinalPageCount, (uint)maxPage);\r
 205 \r
 206             this.dxgiPreviewTarget.InvalidatePreview();\r
 207 \r
 208             this.maxPreviePageCount = maxPage;\r
 209 \r
 210             this.paginateCalled = true;\r
 211         }\r
 212 \r
 213         public void MakePage(uint desiredJobPage, float width, float height)\r
 214         {\r
 215             if (width <= 0 || height <= 0)\r
 216                 throw new COMException("", 0x70057/*E_INVALIDARG*/);\r
 217             if (!this.paginateCalled)\r
 218                 return;\r
 219             if (desiredJobPage == 0xFFFFFFFF)\r
 220                 desiredJobPage = 1;\r
 221 \r
 222             this.previewView.TryScroll(0, 0);   //元に戻さないとページ番号が変わった時に正しく動作しない\r
 223 \r
 224             for (int i = 1; i < desiredJobPage; i++)\r
 225                 this.previewView.TryPageDown();\r
 226 \r
 227             if (!string.IsNullOrEmpty(this.Header))\r
 228                 this.previewView.Header = this.ParseHF(this, new ParseCommandEventArgs((int)desiredJobPage, this.maxPreviePageCount, this.Header));\r
 229             if (!string.IsNullOrEmpty(this.Fotter))\r
 230                 this.previewView.Footer = this.ParseHF(this, new ParseCommandEventArgs((int)desiredJobPage, this.maxPreviePageCount, this.Fotter));\r
 231 \r
 232             this.previewRender.Resize(width, height);\r
 233             this.previewRender.SetScale((float)(this.previewView.PageBound.Width / width)); //BeginDraw()で倍率が1に戻る\r
 234 \r
 235             this.previewRender.BeginDraw();\r
 236             this.previewView.Draw(this.previewView.PageBound);\r
 237             this.previewRender.EndDraw(this.dxgiPreviewTarget,desiredJobPage);\r
 238         }\r
 239 \r
 240         public void Dispose()\r
 241         {\r
 242             if (this.previewView != null)\r
 243                 this.previewView.Dispose();\r
 244             if (this.previewRender != null)\r
 245                 this.previewRender.Dispose();\r
 246         }\r
 247     }\r
 248 }\r