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