AppliStation/AppliStation.Util/GUIUtils.cs

   1 using System;\r
   2 using System.IO;\r
   3 using System.Runtime.InteropServices;\r
   4 using System.Drawing;\r
   5 using System.Drawing.Imaging;\r
   6 using System.Windows.Forms;\r
   7 using NaGet.Packages;\r
   8 using NaGet.Packages.Install;\r
   9 \r
  10 namespace AppliStation.Util\r
  11 {\r
  12         /// <summary>\r
  13         /// GUIに関する雑多な関数\r
  14         /// </summary>\r
  15         public sealed class GUIUtils\r
  16         {\r
  17                 #region アイコン関連\r
  18                 \r
  19                 #region ExtraIcon関連\r
  20                 \r
  21                 /// <summary>\r
  22                 /// アイコンファイル（実行ファイル・DLL）を開いてアイコンを作る\r
  23                 /// </summary>\r
  24                 /// <param name="form">ハンドラ</param>\r
  25                 /// <param name="lpszExeFileNameAndIndex">対象ファイルとアイコンインデックスの文字列表現</param>\r
  26                 /// <returns>生成されたアイコン。</returns>\r
  27                 public static Icon ExtractIcon(Form form, string lpszExeFileNameAndIndex)\r
  28                 {\r
  29                         int index = lpszExeFileNameAndIndex.LastIndexOf(',');\r
  30                         if (index >= 0) {\r
  31                                 uint nIconIndex = uint.Parse(lpszExeFileNameAndIndex.Substring(index+1));\r
  32                                 return NativeMethods.ExtractIcon(form, lpszExeFileNameAndIndex.Substring(0, index), nIconIndex);\r
  33                         } else {\r
  34                                 return Icon.ExtractAssociatedIcon(lpszExeFileNameAndIndex);\r
  35                         }\r
  36                 }\r
  37                 \r
  38                 /// <summary>\r
  39                 /// シェルからフォルダーアイコンを生成して返す\r
  40                 /// </summary>\r
  41                 /// <returns>フォルダーアイコン</returns>\r
  42                 public static Icon ShellIconForFolder\r
  43                 {\r
  44                         get {\r
  45                                 // Vista以降ならば、SHGetStockIconInfo(SIID_FOLDER, SHGSI_ICON, &sInfo); をP/Invoke呼び出しするのが王道かと\r
  46                                 string windir = Environment.GetEnvironmentVariable("windir");\r
  47                                 return NativeMethods.ExtractIcon(null, Path.Combine(windir, @"system32\shell32.dll"), 3);\r
  48                         }\r
  49                 }\r
  50                 \r
  51                 #endregion\r
  52                 \r
  53                 /// <summary>\r
  54                 /// パッケージに対応するアイコンを返す\r
  55                 /// </summary>\r
  56                 /// <param name="pkg">パッケージ</param>\r
  57                 /// <returns>対応するアイコン。検出できなかった場合はnull。</returns>\r
  58                 public static Icon GetIconForPackage(InstalledPackage pkg)\r
  59                 {\r
  60                         Icon ico = null;\r
  61                         string iconPath = pkg.UninstallInfo.IconPath;\r
  62                         if (! string.IsNullOrEmpty(iconPath)) {\r
  63                                 try {\r
  64                                         ico = ExtractIcon(null, iconPath);\r
  65                                 } catch (FileNotFoundException) {\r
  66                                         ico = null;\r
  67                                 }\r
  68                         } else if ((pkg.Type == InstallerType.ARCHIVE)\r
  69                                    ||(pkg.Type == InstallerType.ITSELF)) {\r
  70                                 string progGrp = Path.Combine(NaGet.Env.ArchiveProgramGroup, pkg.Name);\r
  71                                 if (Directory.Exists(progGrp)) {\r
  72                                         string[] lnkFiles = Directory.GetFiles(progGrp, "*.lnk");\r
  73                                         \r
  74                                         if (lnkFiles.Length >= 1) {\r
  75                                                 try {\r
  76                                                         using (NaGet.InteropServices.ShellLink link = new NaGet.InteropServices.ShellLink(lnkFiles[0])) {\r
  77                                                                 if (File.Exists(link.GetPath(0))) {\r
  78                                                                         ico = Icon.ExtractAssociatedIcon(link.GetPath(0));\r
  79                                                                 }\r
  80                                                         }\r
  81                                                 } catch (System.Runtime.InteropServices.COMException) {\r
  82                                                         // ShellLinkのオープンあるいは、リンク先解決に失敗した場合\r
  83                                                 }\r
  84                                         }\r
  85                                 }\r
  86                         }\r
  87                         return ico;\r
  88                 }\r
  89                 \r
  90                 /// <summary>\r
  91                 /// グレーアウトアイコンを作るための ImageAttributes を作って返す。\r
  92                 /// </summary>\r
  93                 /// <param name="alpha">透明度。(1.0が不透明、0.0が完全透明)</param>\r
  94                 /// <returns>生成されたImageAttributes</returns>\r
  95                 public static ImageAttributes GetImageAttributeToGrayOut(float alpha)\r
  96                 {\r
  97                         // RGB比率として、YIQカラーモデルの値を採用する\r
  98                         const float r = 0.298912f;\r
  99                         const float g = 0.586611f;\r
 100                         const float b = 0.114478f;\r
 101                         \r
 102                         ColorMatrix cm = new ColorMatrix(new float[][]{\r
 103                                 new float[]{r, r, r,     0, 0},\r
 104                                 new float[]{g, g, g,     0, 0},\r
 105                                 new float[]{b, b, b,     0, 0},\r
 106                                 new float[]{0, 0, 0, alpha, 0},\r
 107                                 new float[]{0, 0, 0,     0, 1},\r
 108                          });\r
 109                         ImageAttributes ia = new ImageAttributes();\r
 110                         ia.SetColorMatrix(cm);\r
 111                         \r
 112                         return ia;\r
 113                 }\r
 114                 \r
 115                 /// <summary>\r
 116                 /// 画像を指定領域の真中に描く\r
 117                 /// </summary>\r
 118                 /// <param name="g">描画対象のグラフィックス</param>\r
 119                 /// <param name="img">画像</param>\r
 120                 /// <param name="b">指定領域</param>\r
 121                 /// <param name="ia">ImageAttributes。nullでもかまわない</param>\r
 122                 public static void Graphics_DrawCenterImage(Graphics g, Image img, Rectangle b, ImageAttributes ia)\r
 123                 {\r
 124                         int x = b.Left + (b.Width  - img.Width ) / 2;\r
 125                         int y = b.Top  + (b.Height - img.Height) / 2;\r
 126                         \r
 127                         g.DrawImage(img,\r
 128                                     new Rectangle(x, y, img.Width, img.Height),\r
 129                                     0, 0, img.Width, img.Height,\r
 130                                     GraphicsUnit.Pixel, ia);\r
 131                 }\r
 132                 \r
 133                 #endregion\r
 134                 \r
 135                 #region CheckedListBox関連\r
 136                 \r
 137                 /// <summary>\r
 138                 /// チェックリストボックスのアイテムをスワップする\r
 139                 /// </summary>\r
 140                 /// <param name="checkedListBox">操作対象のCheckedListBox</param>\r
 141                 /// <param name="indexA">アイテムインデックス</param>\r
 142                 /// <param name="indexB">アイテムインデックス</param>\r
 143                 /// <remarks>インデックス値のチェックは本メソッドでは行っていない</remarks>\r
 144                 public static void CheckedListBox_SwapItems(CheckedListBox checkedListBox, int indexA, int indexB) {\r
 145                         int itemCount = checkedListBox.Items.Count;\r
 146                         object tempItem          = checkedListBox.Items[indexA];\r
 147                         CheckState tempState = checkedListBox.GetItemCheckState(indexA);\r
 148                         \r
 149                         checkedListBox.Items[indexA] = checkedListBox.Items[indexB];\r
 150                         checkedListBox.SetItemCheckState(indexA, checkedListBox.GetItemCheckState(indexB));\r
 151                         \r
 152                         checkedListBox.Items[indexB] = tempItem;\r
 153                         checkedListBox.SetItemCheckState(indexB, tempState);\r
 154                 }\r
 155                 \r
 156                 #endregion\r
 157         }\r
 158 }\r