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                 [DllImport("shell32.dll")]\r
  22                 private static extern IntPtr ExtractIcon(IntPtr hInst, string lpszExeFileName, int nIconIndex);\r
  23                 \r
  24                 [DllImport("user32.dll", SetLastError=true)]\r
  25                 [return: MarshalAs(UnmanagedType.Bool)]\r
  26                 private static extern bool DestroyIcon(IntPtr hIcon);\r
  27                 \r
  28                 /// <summary>\r
  29                 /// 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
  30                 /// </summary>\r
  31                 /// <remarks>内部でコピーされるのでWin32APIのDestroyIconを使わないでいいが、やや遅い動作</remarks>\r
  32                 /// <param name="form">ハンドラ</param>\r
  33                 /// <param name="lpszExeFileName">対象ファイル</param>\r
  34                 /// <param name="nIconIndex">アイコンインデックス</param>\r
  35                 /// <returns>生成されたアイコン</returns>\r
  36                 public static Icon ExtractIcon(Form form, string lpszExeFileName, uint nIconIndex)\r
  37                 {\r
  38                         Icon ico = null;\r
  39                         \r
  40                         if (! File.Exists(lpszExeFileName)) {\r
  41                                 ico = Icon.ExtractAssociatedIcon(lpszExeFileName); // ExtractAssociatedIconに例外を吐いてもらう\r
  42                         } else {\r
  43                                 IntPtr hInst = (form != null)? form.Handle : IntPtr.Zero;\r
  44                                 IntPtr hIcon = IntPtr.Zero;\r
  45                                 \r
  46                                 try {\r
  47                                         hIcon = ExtractIcon(hInst, lpszExeFileName, (int) nIconIndex);\r
  48                                         if ((hIcon != IntPtr.Zero) && (hIcon.ToInt32() != 2)) {\r
  49                                                 ico = (Icon) Icon.FromHandle(hIcon).Clone();\r
  50                                                 DestroyIcon(hIcon);\r
  51                                         }\r
  52                                 } catch (System.Runtime.InteropServices.COMException) {\r
  53                                         // ExtraIconのP/Invoke失敗時用\r
  54                                 }\r
  55                         }\r
  56                         return ico;\r
  57                 }\r
  58                 \r
  59                 /// <summary>\r
  60                 /// 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
  61                 /// </summary>\r
  62                 /// <param name="form">ハンドラ</param>\r
  63                 /// <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
  64                 /// <returns>生成されたアイコン。</returns>\r
  65                 public static Icon ExtractIcon(Form form, string lpszExeFileNameAndIndex)\r
  66                 {\r
  67                         int index = lpszExeFileNameAndIndex.LastIndexOf(',');\r
  68                         if (index >= 0) {\r
  69                                 uint nIconIndex = uint.Parse(lpszExeFileNameAndIndex.Substring(index+1));\r
  70                                 return ExtractIcon(form, lpszExeFileNameAndIndex.Substring(0, index), nIconIndex);\r
  71                         } else {\r
  72                                 return Icon.ExtractAssociatedIcon(lpszExeFileNameAndIndex);\r
  73                         }\r
  74                 }\r
  75                 \r
  76                 /// <summary>\r
  77                 /// シェルからフォルダアイコンを生成して返す\r
  78                 /// </summary>\r
  79                 /// <returns>フォルダアイコン</returns>\r
  80                 public static Icon GetShellIconForFolder()\r
  81                 {\r
  82                         // 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
  83                         string windir = Environment.GetEnvironmentVariable("windir");\r
  84                         return ExtractIcon(null, Path.Combine(windir, @"system32\shell32.dll"), 3);\r
  85                 }\r
  86                 \r
  87                 #endregion\r
  88                 \r
  89                 /// <summary>\r
  90                 /// パッケージに対応するアイコンを返す\r
  91                 /// </summary>\r
  92                 /// <param name="pkg">パッケージ</param>\r
  93                 /// <returns>対応するアイコン。検出できなかった場合はnull。</returns>\r
  94                 public static Icon GetIconForPackage(InstalledPackage pkg)\r
  95                 {\r
  96                         Icon ico = null;\r
  97                         string iconPath = pkg.UninstallInfo.IconPath;\r
  98                         if (! string.IsNullOrEmpty(iconPath)) {\r
  99                                 try {\r
 100                                         ico = ExtractIcon(null, iconPath);\r
 101                                 } catch (FileNotFoundException) {\r
 102                                         ico = null;\r
 103                                 }\r
 104                         } else if (pkg.Type == InstallerType.ARCHIVE) {\r
 105                                 string progGrp = Path.Combine(NaGet.Env.ArchiveProgramGroup, pkg.Name);\r
 106                                 if (Directory.Exists(progGrp)) {\r
 107                                         string[] lnkFiles = Directory.GetFiles(progGrp, "*.lnk");\r
 108                                         \r
 109                                         if (lnkFiles.Length >= 1) {\r
 110                                                 try {\r
 111                                                         using (NaGet.InteropServices.ShellLink link = new NaGet.InteropServices.ShellLink(lnkFiles[0])) {\r
 112                                                                 if (File.Exists(link.GetPath(0))) {\r
 113                                                                         ico = Icon.ExtractAssociatedIcon(link.GetPath(0));\r
 114                                                                 }\r
 115                                                         }\r
 116                                                 } catch (System.Runtime.InteropServices.COMException) {\r
 117                                                         // ShellLinkのオープンあるいは、リンク先解決に失敗した場合\r
 118                                                 }\r
 119                                         }\r
 120                                 }\r
 121                         }\r
 122                         return ico;\r
 123                 }\r
 124                 \r
 125                 /// <summary>\r
 126                 /// グレーアウトアイコンを作るための ImageAttributes を作って返す。\r
 127                 /// </summary>\r
 128                 /// <param name="alpha">透明度。(1.0が不透明、0.0が完全透明)</param>\r
 129                 /// <returns>生成されたImageAttributes</returns>\r
 130                 public static ImageAttributes GetImageAttributeToGrayOut(float alpha)\r
 131                 {\r
 132                         // RGB比率として、YIQカラーモデルの値を採用する\r
 133                         const float r = 0.298912f;\r
 134                         const float g = 0.586611f;\r
 135                         const float b = 0.114478f;\r
 136                         \r
 137                         ColorMatrix cm = new ColorMatrix(new float[][]{\r
 138                                 new float[]{r, r, r,     0, 0},\r
 139                                 new float[]{g, g, g,     0, 0},\r
 140                                 new float[]{b, b, b,     0, 0},\r
 141                                 new float[]{0, 0, 0, alpha, 0},\r
 142                                 new float[]{0, 0, 0,     0, 1},\r
 143                          });\r
 144                         ImageAttributes ia = new ImageAttributes();\r
 145                         ia.SetColorMatrix(cm);\r
 146                         \r
 147                         return ia;\r
 148                 }\r
 149                 \r
 150                 /// <summary>\r
 151                 /// 画像を指定領域の真中に描く\r
 152                 /// </summary>\r
 153                 /// <param name="g">描画対象のグラフィックス</param>\r
 154                 /// <param name="img">画像</param>\r
 155                 /// <param name="b">指定領域</param>\r
 156                 /// <param name="ia">ImageAttributes。nullでもかまわない</param>\r
 157                 public static void Graphics_DrawCenterImage(Graphics g, Image img, Rectangle b, ImageAttributes ia)\r
 158                 {\r
 159                         int x = b.Left + (b.Width  - img.Width ) / 2;\r
 160                         int y = b.Top  + (b.Height - img.Height) / 2;\r
 161                         \r
 162                         g.DrawImage(img,\r
 163                                     new Rectangle(x, y, img.Width, img.Height),\r
 164                                     0, 0, img.Width, img.Height,\r
 165                                     GraphicsUnit.Pixel, ia);\r
 166                 }\r
 167 \r
 168                 #endregion\r
 169                 \r
 170                 #region CheckedListBox関連\r
 171                 \r
 172                 /// <summary>\r
 173                 /// チェックリストボックスのアイテムをスワップする\r
 174                 /// </summary>\r
 175                 /// <param name="checkedListBox">操作対象のCheckedListBox</param>\r
 176                 /// <param name="indexA">アイテムインデックス</param>\r
 177                 /// <param name="indexB">アイテムインデックス</param>\r
 178                 /// <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
 179                 public static void CheckedListBox_SwapItems(CheckedListBox checkedListBox, int indexA, int indexB) {\r
 180                         int itemCount = checkedListBox.Items.Count;\r
 181                         object tempItem          = checkedListBox.Items[indexA];\r
 182                         CheckState tempState = checkedListBox.GetItemCheckState(indexA);\r
 183                         \r
 184                         checkedListBox.Items[indexA] = checkedListBox.Items[indexB];\r
 185                         checkedListBox.SetItemCheckState(indexA, checkedListBox.GetItemCheckState(indexB));\r
 186                         \r
 187                         checkedListBox.Items[indexB] = tempItem;\r
 188                         checkedListBox.SetItemCheckState(indexB, tempState);\r
 189                 }\r
 190                 \r
 191                 #endregion\r
 192         }\r
 193 }\r