added TaskDialogPresenter.cs

PdfScribeCore/TaskDialogPresenter.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Windows;
+
+using APICodePack = Microsoft.WindowsAPICodePack.Dialogs;
+
+namespace PdfScribeCore
+{
+    abstract class TaskDialogPresenter
+    {
+
+        protected abstract APICodePack.TaskDialogStandardIcon DefaultTaskIcon { get; } // Override this to set the dialog icon you want
+
+        /// <summary>
+        /// Pops up a simple TaskDialog box
+        /// with just a Close button and
+        /// the default standard dialog icon
+        /// </summary>
+        /// <param name="captionText">Text that goes in the window's caption</param>
+        /// <param name="instructionText">Instructional text (Appears next to the error icon)</param>
+        /// <param name="messageText">Smaller message detail text at bottom</param>
+        public virtual void ShowSimple(String captionText,
+                                       String instructionText,
+                                       String messageText)
+        {
+            using (APICodePack.TaskDialog simpleTaskDialog = new APICodePack.TaskDialog())
+            {
+                simpleTaskDialog.Caption = captionText;
+                simpleTaskDialog.InstructionText = instructionText;
+                simpleTaskDialog.Text = messageText;
+                simpleTaskDialog.Icon = this.DefaultTaskIcon;
+                simpleTaskDialog.StandardButtons = APICodePack.TaskDialogStandardButtons.Close;
+                simpleTaskDialog.Opened += new EventHandler(simpleTaskDialog_Opened);
+                simpleTaskDialog.Show();
+            }
+        }
+
+        private void simpleTaskDialog_Opened(object sender, EventArgs e)
+        {
+            // Really fucking annoying -
+            // There's a bug somewhere in the API Code Pack that
+            // causes the icon not to show
+            // unless you set it on the Opened event
+            // See: http://stackoverflow.com/questions/15645592/taskdialogstandardicon-not-working-on-task-dialog
+            // One of these days I'll try to find and fix it (honestly I hope
+            // someone else fixes first - also why isn't the API Code pack on codeplex
+            // or github so people can push patches), but until then...
+            ((APICodePack.TaskDialog)sender).Icon = this.DefaultTaskIcon;
+        }
+
+    }
+}