Added some boilerplate to the rendering system. It's now impossible to start new rendering cycle if the previous one hasn't finished yet.

Changed: OS name, GPU name and GZDB revision info are now added to the exception text and GZCrash.log.
Fixed, cosmetic: toolstrip separators visibility must be updated when resizing the main window.
Internal: removed Plug.DisplaySize, Plug.DisplayLocationAbs and Renderer.ViewportSize. The same data can be accessed from anywhere using General.Interface.Display.Size and General.Interface.Display.LocationAbs. Also Plug.DisplayLocationAbs returned incorrect coordinates...

Source/Core/Builder.csproj

@@ -528,6 +528,7 @@
     <Reference Include="System.Data" />
     <Reference Include="System.Design" />
     <Reference Include="System.Drawing" />
+    <Reference Include="System.Management" />
     <Reference Include="System.Windows.Forms" />
     <Reference Include="System.Xml" />
   </ItemGroup>

Source/Core/Controls/RenderTargetControl.cs

@@ -18,6 +18,7 @@
 
 using System.Drawing;
 using System.Windows.Forms;
+using CodeImp.DoomBuilder.Rendering;
 
 #endregion
 
@@ -36,7 +37,10 @@ namespace CodeImp.DoomBuilder.Controls
 		#endregion
 
 		#region ================== Properties
+		
 		public event KeyEventHandler OnKeyReleased; //mxd. Sometimes it's handeled here, not by MainForm
+		public Point LocationAbs { get { return this.PointToScreen(new Point(-(General.MainWindow.Width - General.MainWindow.ClientSize.Width) / 2, 0)); } } //mxd
+
 		#endregion
 
 		#region ================== Constructor / Disposer
@@ -65,7 +69,7 @@ namespace CodeImp.DoomBuilder.Controls
 		{
 			// Pass on to base
 			// Do we really want this?
-			base.RaisePaintEvent(this, pe);
+			if(!D3DDevice.IsRendering) base.RaisePaintEvent(this, pe); //mxd. Dont raise event when in the middle of rendering
 		}
 
 		//mxd

Source/Core/GZBuilder/Windows/ExceptionDialog.cs

@@ -2,6 +2,7 @@
 
 using System;
 using System.IO;
+using System.Management;
 using System.Windows.Forms;
 using System.Threading;
 
@@ -36,12 +37,14 @@ namespace CodeImp.DoomBuilder.GZBuilder.Windows
 
 			logPath = Path.Combine(General.SettingsPath, @"GZCrash.txt");
 			errorDescription.Text = "Error in " + e.Exception.Source + ":";
+			string sysinfo = GetSystemInfo();
 			using(StreamWriter sw = File.CreateText(logPath)) 
 			{
-				sw.Write(GetExceptionDescription(e.Exception));
+				sw.Write(sysinfo + GetExceptionDescription(e.Exception));
 			}
 
-			errorMessage.Text = e.Exception.Message + Environment.NewLine + e.Exception.StackTrace;
+			errorMessage.Text = sysinfo + "********EXCEPTION DETAILS********" + Environment.NewLine 
+				+ e.Exception.Message + Environment.NewLine + e.Exception.StackTrace;
 		}
 
 		public void Setup() 
@@ -120,6 +123,37 @@ namespace CodeImp.DoomBuilder.GZBuilder.Windows
 			this.Text = titles[new Random().Next(0, titles.Length - 1)];
 		}
 
+		private static string GetSystemInfo()
+		{
+			string result = "***********SYSTEM INFO***********" + Environment.NewLine;
+			
+			// Get OS name
+			ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT Caption FROM Win32_OperatingSystem");
+			foreach(ManagementObject mo in searcher.Get())
+			{
+				result += "OS: " + mo["Caption"] + Environment.NewLine;
+				break;
+			}
+
+			// Get GPU name
+			searcher = new ManagementObjectSearcher("SELECT * FROM Win32_VideoController");
+			foreach(ManagementObject mo in searcher.Get())
+			{
+				PropertyData bpp = mo.Properties["CurrentBitsPerPixel"];
+				PropertyData description = mo.Properties["Description"];
+				if(bpp != null && description != null && bpp.Value != null)
+				{
+					result += "GPU: " + description.Value + Environment.NewLine;
+					break;
+				}
+			}
+
+			// Get GZDB version
+			result += "GZDB: R" + General.ThisAssembly.GetName().Version.Revision + Environment.NewLine + Environment.NewLine;
+
+			return result;
+		}
+
 		private static string GetExceptionDescription(Exception ex) 
 		{
 			//add to error logger

Source/Core/GZBuilder/Windows/ExceptionDialog.designer.cs

@@ -41,23 +41,27 @@
 			// 
 			// bQuit
 			// 
-			this.bQuit.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
 			this.bQuit.DialogResult = System.Windows.Forms.DialogResult.Cancel;
-			this.bQuit.Location = new System.Drawing.Point(537, 195);
+			this.bQuit.Image = global::CodeImp.DoomBuilder.Properties.Resources.SearchClear;
+			this.bQuit.ImageAlign = System.Drawing.ContentAlignment.MiddleLeft;
+			this.bQuit.Location = new System.Drawing.Point(537, 212);
 			this.bQuit.Name = "bQuit";
-			this.bQuit.Size = new System.Drawing.Size(75, 23);
+			this.bQuit.Size = new System.Drawing.Size(75, 28);
 			this.bQuit.TabIndex = 0;
 			this.bQuit.Text = "Quit";
+			this.bQuit.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
 			this.bQuit.UseVisualStyleBackColor = true;
 			// 
 			// bContinue
 			// 
-			this.bContinue.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+			this.bContinue.Image = global::CodeImp.DoomBuilder.Properties.Resources.Test;
-			this.bContinue.Location = new System.Drawing.Point(456, 195);
+			this.bContinue.ImageAlign = System.Drawing.ContentAlignment.MiddleLeft;
+			this.bContinue.Location = new System.Drawing.Point(446, 212);
 			this.bContinue.Name = "bContinue";
-			this.bContinue.Size = new System.Drawing.Size(75, 23);
+			this.bContinue.Size = new System.Drawing.Size(85, 28);
 			this.bContinue.TabIndex = 1;
 			this.bContinue.Text = "Continue";
+			this.bContinue.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
 			this.bContinue.UseVisualStyleBackColor = true;
 			this.bContinue.Click += new System.EventHandler(this.bContinue_Click);
 			// 
@@ -67,7 +71,7 @@
 			this.errorMessage.Multiline = true;
 			this.errorMessage.Name = "errorMessage";
 			this.errorMessage.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
-			this.errorMessage.Size = new System.Drawing.Size(535, 119);
+			this.errorMessage.Size = new System.Drawing.Size(535, 151);
 			this.errorMessage.TabIndex = 3;
 			this.errorMessage.Text = "Stack trace";
 			// 
@@ -85,7 +89,7 @@
 			this.reportLink.AutoSize = true;
 			this.reportLink.LinkArea = new System.Windows.Forms.LinkArea(53, 4);
 			this.reportLink.LinkColor = System.Drawing.SystemColors.HotTrack;
-			this.reportLink.Location = new System.Drawing.Point(77, 157);
+			this.reportLink.Location = new System.Drawing.Point(77, 188);
 			this.reportLink.Name = "reportLink";
 			this.reportLink.Size = new System.Drawing.Size(286, 17);
 			this.reportLink.TabIndex = 5;
@@ -99,7 +103,7 @@
 			this.threadLink.AutoSize = true;
 			this.threadLink.LinkArea = new System.Windows.Forms.LinkArea(101, 28);
 			this.threadLink.LinkColor = System.Drawing.SystemColors.HotTrack;
-			this.threadLink.Location = new System.Drawing.Point(77, 178);
+			this.threadLink.Location = new System.Drawing.Point(77, 210);
 			this.threadLink.Name = "threadLink";
 			this.threadLink.Size = new System.Drawing.Size(349, 30);
 			this.threadLink.TabIndex = 8;
@@ -112,9 +116,11 @@
 			// bToClipboard
 			// 
 			this.bToClipboard.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
-			this.bToClipboard.Location = new System.Drawing.Point(512, 151);
+			this.bToClipboard.Image = global::CodeImp.DoomBuilder.Properties.Resources.Copy;
+			this.bToClipboard.ImageAlign = System.Drawing.ContentAlignment.MiddleLeft;
+			this.bToClipboard.Location = new System.Drawing.Point(446, 184);
 			this.bToClipboard.Name = "bToClipboard";
-			this.bToClipboard.Size = new System.Drawing.Size(100, 23);
+			this.bToClipboard.Size = new System.Drawing.Size(166, 24);
 			this.bToClipboard.TabIndex = 9;
 			this.bToClipboard.Text = "Copy to clipboard";
 			this.bToClipboard.UseVisualStyleBackColor = true;
@@ -136,7 +142,7 @@
 			this.AutoScaleDimensions = new System.Drawing.SizeF(96F, 96F);
 			this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Dpi;
 			this.CancelButton = this.bQuit;
-			this.ClientSize = new System.Drawing.Size(624, 224);
+			this.ClientSize = new System.Drawing.Size(624, 244);
 			this.Controls.Add(this.reportLink);
 			this.Controls.Add(this.errorDescription);
 			this.Controls.Add(this.bToClipboard);

Source/Core/Plugins/Plug.cs

@@ -33,18 +33,6 @@ namespace CodeImp.DoomBuilder.Plugins
 		// Disposing
 		private bool isdisposed;
 
-		//mxd. It's nice to have these avaliable to plugins...
-		public static Point DisplayLocationAbs {
-			get {
-				if (General.MainWindow == null || General.MainWindow.Display == null)
-					return new Point();
-				return new Point(General.MainWindow.Location.X + General.MainWindow.ClientRectangle.X + General.MainWindow.Display.Location.X, General.MainWindow.Location.Y + General.MainWindow.ClientRectangle.Y + General.MainWindow.Display.Location.Y);
-			}
-		}
-
-		//mxd. It's nice to have these avaliable to plugins...
-		public static Size DisplaySize { get { return (General.MainWindow == null || General.MainWindow.Display == null) ? new Size() : General.MainWindow.Display.Size; } }
-
 		#endregion
 		
 		#region ================== Properties

Source/Core/Rendering/D3DDevice.cs

@@ -45,6 +45,7 @@ namespace CodeImp.DoomBuilder.Rendering
 		private int adapter;
 		private Filter postfilter;
 		private Filter mipgeneratefilter;
+		private static bool isrendering; //mxd
 		
 		// Main objects
 		private static Direct3D d3d;
@@ -68,6 +69,7 @@ namespace CodeImp.DoomBuilder.Rendering
 
 		internal Device Device { get { return device; } }
 		public bool IsDisposed { get { return isdisposed; } }
+		public static bool IsRendering { get { return isrendering; } } //mxd
 		internal RenderTargetControl RenderTarget { get { return rendertarget; } }
 		internal Viewport Viewport { get { return viewport; } }
 		internal ShaderManager Shaders { get { return shaders; } }
@@ -110,6 +112,7 @@ namespace CodeImp.DoomBuilder.Rendering
 				if(device != null) device.Dispose();
 				if(font != null) font.Dispose();
 				if(fonttexture != null) fonttexture.Dispose();
+				isrendering = false; //mxd
 				
 				// Done
 				isdisposed = true;
@@ -445,7 +448,7 @@ namespace CodeImp.DoomBuilder.Rendering
 		public bool StartRendering(bool clear, Color4 backcolor, Surface target, Surface depthbuffer)
 		{
 			// Check if we can render
-			if(CheckAvailability())
+			if(CheckAvailability() && !isrendering) //mxd. Added isrendering check
 			{
 				// Set rendertarget
 				device.DepthStencilSurface = depthbuffer;
@@ -462,11 +465,13 @@ namespace CodeImp.DoomBuilder.Rendering
 
 				// Ready to render
 				device.BeginScene();
+				isrendering = true; //mxd
 				return true;
 			}
 			else
 			{
 				// Minimized, you cannot see anything
+				isrendering = false; //mxd
 				return false;
 			}
 		}
@@ -491,6 +496,7 @@ namespace CodeImp.DoomBuilder.Rendering
 			{
 				// Done
 				device.EndScene();
+				isrendering = false; //mxd
 			}
 			// Errors are not a problem here
 			catch(Exception) { }
@@ -502,6 +508,7 @@ namespace CodeImp.DoomBuilder.Rendering
 			try
 			{
 				device.Present();
+				isrendering = false; //mxd
 			}
 			// Errors are not a problem here
 			catch(Exception) { }

Source/Core/Rendering/IRenderer2D.cs

@@ -37,7 +37,6 @@ namespace CodeImp.DoomBuilder.Rendering
 		float Scale { get; }
 		int VertexSize { get; }
 		ViewMode ViewMode { get; }
-		Size ViewportSize { get; } //mxd
 
 		// View methods
 		Vector2D DisplayToMap(Vector2D mousepos);

Source/Core/Rendering/Renderer.cs

@@ -47,7 +47,6 @@ namespace CodeImp.DoomBuilder.Rendering
 		// Disposing
 		public bool IsDisposed { get { return isdisposed; } }
 		public static bool FullBrightness { get { return fullbrightness; } set { fullbrightness = value; } } //mxd
-		public Size ViewportSize { get { return graphics.RenderTarget.Size; } } //mxd
 
 		#endregion
 

Source/Core/Windows/MainForm.cs

@@ -1076,6 +1076,9 @@ namespace CodeImp.DoomBuilder.Windows
 			//if(!displayresized) General.LockWindowUpdate(display.Handle);
 			displayresized = true;
 
+			//mxd. Separators may need updating
+			UpdateSeparators();
+			
 			// Request redraw
 			if(!redrawtimer.Enabled) redrawtimer.Enabled = true;
 		}

Source/Plugins/BuilderEffects/BuilderPlug.cs

@@ -164,9 +164,9 @@ namespace CodeImp.DoomBuilder.BuilderEffects
 			//position and show form
 			if(formLocation.X == 0 && formLocation.Y == 0)
 			{
-				Size displaySize = DisplaySize;
+				Size displaySize = General.Interface.Display.Size;
-				Point displayLocation = DisplayLocationAbs;
+				Point displayLocation = General.Interface.Display.LocationAbs;
-				formLocation = new Point(displayLocation.X + displaySize.Width - form.Width - 16, displayLocation.Y + 32);
+				formLocation = new Point(displayLocation.X + displaySize.Width - form.Width - 16, displayLocation.Y + 16);
 			}
 
 			form.Location = formLocation;

Source/Plugins/BuilderModes/General/HintLabel.cs

@@ -25,8 +25,8 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			this.end = end;
 
 			// Check if start/end point is on screen...
-			Vector2D lt = General.Map.Renderer2D.DisplayToMap(new Vector2D(0.0f, General.Map.Renderer2D.ViewportSize.Height));
+			Vector2D lt = General.Map.Renderer2D.DisplayToMap(new Vector2D(0.0f, General.Interface.Display.Size.Height));
-			Vector2D rb = General.Map.Renderer2D.DisplayToMap(new Vector2D(General.Map.Renderer2D.ViewportSize.Width, 0.0f));
+			Vector2D rb = General.Map.Renderer2D.DisplayToMap(new Vector2D(General.Interface.Display.Size.Width, 0.0f));
 			RectangleF viewport = new RectangleF(lt.x, lt.y, rb.x - lt.x, rb.y - lt.y);
 			bool startvisible = viewport.Contains(start.x, start.y);
 			bool endvisible = viewport.Contains(end.x, end.y);

Source/Plugins/BuilderModes/General/LineLengthLabel.cs

@@ -153,8 +153,8 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			UpdateText();
 
 			// Check if start/end point is on screen...
-			Vector2D lt = General.Map.Renderer2D.DisplayToMap(new Vector2D(0.0f, General.Map.Renderer2D.ViewportSize.Height));
+			Vector2D lt = General.Map.Renderer2D.DisplayToMap(new Vector2D(0.0f, General.Interface.Display.Size.Height));
-			Vector2D rb = General.Map.Renderer2D.DisplayToMap(new Vector2D(General.Map.Renderer2D.ViewportSize.Width, 0.0f));
+			Vector2D rb = General.Map.Renderer2D.DisplayToMap(new Vector2D(General.Interface.Display.Size.Width, 0.0f));
 			RectangleF viewport = new RectangleF(lt.x, lt.y, rb.x - lt.x, rb.y - lt.y);
 			bool startvisible = viewport.Contains(start.x, start.y);
 			bool endvisible = viewport.Contains(end.x, end.y);

Source/Plugins/ColorPicker/BuilderPlug.cs

@@ -142,9 +142,9 @@ namespace CodeImp.DoomBuilder.ColorPicker
 			{
 				if (formLocation.X == 0 && formLocation.Y == 0) 
 				{
-					Size displaySize = DisplaySize;
+					Size displaySize = General.Interface.Display.Size;
-					Point displayLocation = DisplayLocationAbs;
+					Point displayLocation = General.Interface.Display.LocationAbs;
-					formLocation = new Point(displayLocation.X + displaySize.Width - form.Width - 16, displayLocation.Y + 32);
+					formLocation = new Point(displayLocation.X + displaySize.Width - form.Width - 16, displayLocation.Y + 16);
 				} 
 				form.Location = formLocation;
 				form.FormClosed += form_FormClosed;