Add ToolNotFoundProjectLoadException.

src/Main/Base/Project/ICSharpCode.SharpDevelop.csproj

@@ -199,6 +199,7 @@
     <Compile Include="Project\Configuration\IConfigurable.cs" />
     <Compile Include="Project\Configuration\ConfigurationMapping.cs" />
     <Compile Include="Project\Configuration\IConfigurationOrPlatformNameCollection.cs" />
+    <Compile Include="Project\ErrorProject.cs" />
     <Compile Include="Project\IProjectBinding.cs" />
     <Compile Include="Project\IProjectService.cs" />
     <Compile Include="Project\ISolution.cs" />
@@ -207,6 +208,7 @@
     <Compile Include="Project\ProjectBindingDescriptor.cs" />
     <Compile Include="Project\ProjectBindingDoozer.cs" />
     <Compile Include="Project\ProjectInformation.cs" />
+    <Compile Include="Project\ProjectLoadException.cs" />
     <Compile Include="Project\Project_TypeGuids.cs" />
     <Compile Include="Project\SolutionEventArgs.cs" />
     <Compile Include="Project\SolutionSection.cs" />
@@ -568,7 +570,6 @@
     <Compile Include="Src\Project\ProjectChangeWatcher.cs" />
     <Compile Include="Src\Project\ProjectCustomToolOptions.cs" />
     <Compile Include="Src\Project\ProjectStartException.cs" />
-    <Compile Include="Src\Project\ProjectLoadException.cs" />
     <Compile Include="Src\Project\ProjectPropertyChangedEventArgs.cs" />
     <Compile Include="Src\Project\ProjectUpgradeException.cs" />
     <Compile Include="Refactoring\ContextAction.cs" />
@@ -740,7 +741,6 @@
     <Compile Include="Src\Gui\XmlForms\Lib\IObjectCreator.cs" />
     <Compile Include="Src\Internal\Doozers\PadDescriptor.cs" />
     <Compile Include="Src\Project\MissingProject.cs" />
-    <Compile Include="Src\Project\UnknownProject.cs" />
     <Compile Include="Src\Gui\Pads\ErrorList\ErrorListPad.cs" />
     <Compile Include="Src\Gui\Pads\ErrorList\ErrorListToolbarCommands.cs" />
     <Compile Include="Src\Gui\Pads\CompilerMessageView\CompilerMessageViewToolbarCommands.cs" />

src/Main/Base/Project/Project/ErrorProject.cs

@@ -21,36 +21,44 @@ using ICSharpCode.Core;
 
 namespace ICSharpCode.SharpDevelop.Project
 {
-	public class UnknownProject : AbstractProject
+	public class ErrorProject : AbstractProject
 	{
-		string warningText = "${res:ICSharpCode.SharpDevelop.Commands.ProjectBrowser.NoBackendForProjectType}";
-		bool warningDisplayedToUser;
-		
-		public string WarningText {
-			get { return warningText; }
-			set { warningText = value; }
+		readonly Exception exception;
+
+		/// <summary>
+		/// The exception associated that prevented loading this project.
+		/// This should be a <c>ProjectLoadException</c> or <c>IOException</c>.
+		/// </summary>
+		public Exception Exception {
+			get {
+				return exception;
+			}
 		}
+
+		//string warningText = "${res:ICSharpCode.SharpDevelop.Commands.ProjectBrowser.NoBackendForProjectType}";
 		
-		public bool WarningDisplayedToUser {
-			get { return warningDisplayedToUser; }
-			set { warningDisplayedToUser = value; }
-		}
+//		public void ShowWarningMessageBox()
+//		{
+//			warningDisplayedToUser = true;
+//			MessageService.ShowError("Error loading " + this.FileName + ":\n" + warningText);
+//		}
 		
-		public void ShowWarningMessageBox()
-		{
-			warningDisplayedToUser = true;
-			MessageService.ShowError("Error loading " + this.FileName + ":\n" + warningText);
-		}
-		
-		public UnknownProject(ProjectLoadInformation information, string warningText)
-			: this(information)
+		public ErrorProject(ProjectLoadInformation information, Exception exception)
+			: base(information)
 		{
-			this.warningText = warningText;
+			if (exception == null)
+				throw new ArgumentNullException("exception");
+			this.exception = exception;
 		}
 		
-		public UnknownProject(ProjectLoadInformation information)
-			: base(information)
+		public override void ProjectLoaded()
 		{
+			base.ProjectLoaded();
+			var error = exception as ProjectLoadException;
+			if (error != null) {
+				SD.OutputPad.BuildCategory.Activate();
+				error.WriteToOutputPad(SD.OutputPad.BuildCategory);
+			}
 		}
 		
 		protected override ProjectBehavior GetOrCreateBehavior()

src/Main/Base/Project/Project/ProjectLoadException.cs

@@ -18,6 +18,8 @@
 
 using System;
 using System.Runtime.Serialization;
+using ICSharpCode.SharpDevelop.Gui;
+using ICSharpCode.SharpDevelop.Workbench;
 
 namespace ICSharpCode.SharpDevelop.Project
 {
@@ -42,5 +44,70 @@ namespace ICSharpCode.SharpDevelop.Project
 		protected ProjectLoadException(SerializationInfo info, StreamingContext context) : base(info, context)
 		{
 		}
+		
+		public virtual void WriteToOutputPad(IOutputCategory category)
+		{
+			category.AppendLine(this.Message);
+		}
+		
+		/// <summary>
+		/// Gets whether the exception supports showing a dialog that has additional information
+		/// not contained in the error message.
+		/// </summary>
+		public virtual bool CanShowDialog {
+			get {
+				return false;
+			}
+		}
+		
+		public virtual void ShowDialog()
+		{
+		}
+	}
+	
+	[Serializable()]
+	public class ToolNotFoundProjectLoadException : ProjectLoadException
+	{
+		/// <summary>
+		/// The description text
+		/// </summary>
+		public string Description { get; set; }
+		
+		/// <summary>
+		/// The link target (with leading http://)
+		/// </summary>
+		public string LinkTarget { get; set; }
+		
+		/// <summary>
+		/// 32x32 icon to display next to the description. May be null.
+		/// </summary>
+		public IImage Icon { get; set; }
+		
+		public ToolNotFoundProjectLoadException() : base()
+		{
+		}
+		
+		public ToolNotFoundProjectLoadException(string message) : base(message)
+		{
+		}
+		
+		public ToolNotFoundProjectLoadException(string message, Exception innerException) : base(message, innerException)
+		{
+		}
+		
+		protected ToolNotFoundProjectLoadException(SerializationInfo info, StreamingContext context) : base(info, context)
+		{
+		}
+		
+		public override bool CanShowDialog {
+			get { return true; }
+		}
+		
+		public override void ShowDialog()
+		{
+			using (var dlg = new ToolNotFoundDialog(this.Description, this.LinkTarget, this.Icon)) {
+				dlg.ShowDialog();
+			}
+		}
 	}
 }

src/Main/Base/Project/Src/Gui/Dialogs/NewProjectDialog.cs

@@ -285,7 +285,11 @@ namespace ICSharpCode.SharpDevelop.Project.Dialogs
 				CreateProject();
 			} catch (ProjectLoadException ex) {
 				LoggingService.Error("Unable to create new project.", ex);
-				MessageService.ShowError(ex.Message);
+				if (ex.CanShowDialog) {
+					ex.ShowDialog();
+				} else {
+					MessageService.ShowError(ex.Message);
+				}
 			} catch (IOException ex) {
 				LoggingService.Error("Unable to create new project.", ex);
 				MessageService.ShowError(ex.Message);

src/Main/Base/Project/Src/Gui/Pads/ProjectBrowser/NodeBuilder/DefaultDotNetNodeBuilder.cs

@@ -41,10 +41,10 @@ namespace ICSharpCode.SharpDevelop.Project
 				missingNode.SetIcon("Icons.16x16.Warning");
 				missingNode.Text = ResourceService.GetString("ICSharpCode.SharpDevelop.Commands.ProjectBrowser.ProjectFileNotFound");
 				missingNode.AddTo(projectNode);
-			} else if (project is UnknownProject) {
+			} else if (project is ErrorProject) {
 				CustomNode unknownNode = new CustomNode();
 				unknownNode.SetIcon("Icons.16x16.Warning");
-				unknownNode.Text = StringParser.Parse(((UnknownProject)project).WarningText);
+				unknownNode.Text = ((ErrorProject)project).Exception.Message;
 				unknownNode.AddTo(projectNode);
 			} else if (project is MSBuildFileProject) {
 				projectNode.OpenedImage = projectNode.ClosedImage = "Icons.16x16.XMLFileIcon";

src/Main/Base/Project/Src/Gui/Pads/ProjectBrowser/TreeNodes/ProjectNode.cs

@@ -74,7 +74,7 @@ namespace ICSharpCode.SharpDevelop.Project
 			if (project is MissingProject) {
 				OpenedImage = ClosedImage = "ProjectBrowser.MissingProject";
 				this.ContextmenuAddinTreePath = "/SharpDevelop/Pads/ProjectBrowser/ContextMenu/MissingProjectNode";
-			} else if (project is UnknownProject) {
+			} else if (project is ErrorProject) {
 				OpenedImage = ClosedImage = "ProjectBrowser.ProjectWarning";
 				this.ContextmenuAddinTreePath = "/SharpDevelop/Pads/ProjectBrowser/ContextMenu/UnknownProjectNode";
 			} else {

src/Main/SharpDevelop/Project/ProjectService.cs

@@ -196,6 +196,13 @@ namespace ICSharpCode.SharpDevelop.Project
 				project.ProjectLoaded();
 			SD.FileService.RecentOpen.AddRecentProject(solution.FileName);
 			Project.Converter.UpgradeViewContent.ShowIfRequired(solution);
+			foreach (var project in solution.Projects.OfType<ErrorProject>()) {
+				var error = project.Exception as ProjectLoadException;
+				if (error != null && error.CanShowDialog) {
+					error.ShowDialog();
+					break; // show at most 1 dialog
+				}
+			}
 		}
 		
 		/*

src/Main/SharpDevelop/Project/SolutionLoader.cs

@@ -206,7 +206,7 @@ namespace ICSharpCode.SharpDevelop.Project
 				exception = ex;
 			}
 			LoggingService.Warn("Project load error", exception);
-			return new UnknownProject(projectInfo, exception.Message);
+			return new ErrorProject(projectInfo, exception);
 		}
 		#endregion