Added the ability to load PDF documents from memory (byte[])

src/MoonPdf/Commands.cs

@@ -56,7 +56,7 @@ public class Commands
 		public Commands(MainWindow wnd)
 		{
 			var pdfPanel = wnd.MoonPdfPanel;
-			Predicate<object> isPdfLoaded = f => wnd.IsFileOpen(); // used for the CanExecute callback
+			Predicate<object> isPdfLoaded = f => wnd.IsPdfLoaded(); // used for the CanExecute callback
 
 			this.OpenCommand = new DelegateCommand("Open...", f =>
 				{

src/MoonPdf/FullscreenCommand.cs

@@ -50,7 +50,7 @@ void wnd_PreviewKeyDown(object sender, KeyEventArgs e)
 
 		public override bool CanExecute(object parameter)
 		{
-			return wnd.IsFileOpen();
+			return wnd.IsPdfLoaded();
 		}
 
 		public override void Execute(object parameter)

src/MoonPdf/MainWindow.xaml.cs

@@ -54,7 +54,7 @@ public MainWindow()
 			moonPdfPanel.ViewTypeChanged += moonPdfPanel_ViewTypeChanged;
 			moonPdfPanel.ZoomTypeChanged += moonPdfPanel_ZoomTypeChanged;
 			moonPdfPanel.PageRowDisplayChanged += moonPdfPanel_PageDisplayChanged;
-			moonPdfPanel.FileLoaded += moonPdfPanel_FileLoaded;
+			moonPdfPanel.PdfLoaded += moonPdfPanel_PdfLoaded;
             moonPdfPanel.PasswordRequired += moonPdfPanel_PasswordRequired;
 
 			this.UpdatePageDisplayMenuItem();
@@ -137,7 +137,7 @@ private void UpdateViewTypeItems()
 			}
 		}
 
-		void moonPdfPanel_FileLoaded(object sender, EventArgs e)
+		void moonPdfPanel_PdfLoaded(object sender, EventArgs e)
 		{
 			this.UpdateTitle();
 		}
@@ -147,12 +147,23 @@ private void UpdateTitle()
 			if( appName == null )
 				appName = ((AssemblyProductAttribute)Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyProductAttribute), true).First()).Product;
 
-			this.Title = IsFileOpen() ? string.Format("{0} - {1}", System.IO.Path.GetFileName(this.moonPdfPanel.CurrentFilename), appName) : appName;
+            if (IsPdfLoaded())
+            {
+                var fs = moonPdfPanel.CurrentSource as FileSource;
+
+                if( fs != null )
+                {
+                    this.Title = string.Format("{0} - {1}", System.IO.Path.GetFileName(fs.Filename), appName);
+                    return;
+                }
+            }
+
+			this.Title = appName;
 		}
 
-		internal bool IsFileOpen()
+		internal bool IsPdfLoaded()
 		{
-			return !string.IsNullOrEmpty(moonPdfPanel.CurrentFilename);
+            return moonPdfPanel.CurrentSource != null;
 		}
 
 		protected override void OnPreviewKeyDown(KeyEventArgs e)

src/MoonPdf/Properties/AssemblyInfo.cs

@@ -64,5 +64,5 @@ You should have received a copy of the GNU General Public License
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.2.3.0")]
-[assembly: AssemblyFileVersion("0.2.3.0")]
+[assembly: AssemblyVersion("0.3.0.0")]
+[assembly: AssemblyFileVersion("0.3.0.0")]

src/MoonPdfLib/ContinuousMoonPdfPanel.xaml.cs

@@ -58,26 +58,26 @@ void ContinuousMoonPdfPanel_SizeChanged(object sender, SizeChangedEventArgs e)
 			this.scrollViewer = VisualTreeHelperEx.FindChild<ScrollViewer>(this);
 		}
 
-        public void Load(string pdfFilename, string password = null)
-		{
-			this.virtualPanel = VisualTreeHelperEx.FindChild<CustomVirtualizingPanel>(this);
-			this.scrollViewer = VisualTreeHelperEx.FindChild<ScrollViewer>(this);
-			this.virtualPanel.PageRowBounds = this.parent.PageRowBounds.Select(f => f.SizeIncludingOffset).ToArray();
-			this.imageProvider = new PdfImageProvider(pdfFilename, this.parent.TotalPages,
-										new PageDisplaySettings(this.parent.GetPagesPerRow(), this.parent.ViewType, this.parent.HorizontalMargin, this.parent.Rotation),
+        public void Load(IPdfSource source, string password = null)
+        {
+            this.virtualPanel = VisualTreeHelperEx.FindChild<CustomVirtualizingPanel>(this);
+            this.scrollViewer = VisualTreeHelperEx.FindChild<ScrollViewer>(this);
+            this.virtualPanel.PageRowBounds = this.parent.PageRowBounds.Select(f => f.SizeIncludingOffset).ToArray();
+            this.imageProvider = new PdfImageProvider(source, this.parent.TotalPages,
+                                        new PageDisplaySettings(this.parent.GetPagesPerRow(), this.parent.ViewType, this.parent.HorizontalMargin, this.parent.Rotation),
                                         password: password);
 
-			if (this.parent.ZoomType == ZoomType.Fixed)
-				this.CreateNewItemsSource();
-			else if (this.parent.ZoomType == ZoomType.FitToHeight)
-				this.ZoomToHeight();
-			else if (this.parent.ZoomType == ZoomType.FitToWidth)
-				this.ZoomToWidth();
-
-			if( this.scrollViewer != null )
-				this.scrollViewer.ScrollToTop();
-		}
-
+            if (this.parent.ZoomType == ZoomType.Fixed)
+                this.CreateNewItemsSource();
+            else if (this.parent.ZoomType == ZoomType.FitToHeight)
+                this.ZoomToHeight();
+            else if (this.parent.ZoomType == ZoomType.FitToWidth)
+                this.ZoomToWidth();
+
+            if (this.scrollViewer != null)
+                this.scrollViewer.ScrollToTop();
+        }
+        
 		private void CreateNewItemsSource()
 		{
 			var pageTimeout = TimeSpan.FromSeconds(2);

src/MoonPdfLib/IMoonPdfPanel.cs

@@ -14,6 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 !*/
+using MoonPdfLib.MuPdf;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -31,7 +32,7 @@ internal interface IMoonPdfPanel
 		ScrollViewer ScrollViewer { get; }
 		UserControl Instance { get; }
 		float CurrentZoom { get; }
-		void Load(string pdfFilename, string password = null);
+		void Load(IPdfSource source, string password = null);
         void Zoom(double zoomFactor);
 		void ZoomIn();
 		void ZoomOut();

src/MoonPdfLib/MoonPdfPanel.xaml.cs

@@ -37,7 +37,7 @@ namespace MoonPdfLib
 {
 	public partial class MoonPdfPanel : UserControl
 	{
-		public event EventHandler FileLoaded;
+		public event EventHandler PdfLoaded;
 		public event EventHandler ZoomTypeChanged;
 		public event EventHandler ViewTypeChanged;
 		public event EventHandler PageRowDisplayChanged;
@@ -115,7 +115,7 @@ public PageRowDisplayType PageRowDisplay
 		#endregion
 
 		public double HorizontalMargin { get { return this.PageMargin.Right; } }
-		public string CurrentFilename { get; private set; }
+        public IPdfSource CurrentSource { get; private set; }
         public string CurrentPassword { get; private set; }
 		public int TotalPages { get; private set; }
 		internal PageRowBound[] PageRowBounds { get { return this.pageRowBounds; } }
@@ -161,7 +161,7 @@ public MoonPdfPanel()
 
 		void PdfViewerPanel_SizeChanged(object sender, SizeChangedEventArgs e)
 		{
-			if (this.CurrentFilename == null)
+			if (this.CurrentSource == null)
 				return;
 
 			resizeTimer.Stop();
@@ -172,7 +172,7 @@ void resizeTimer_Tick(object sender, EventArgs e)
 		{
 			resizeTimer.Stop();
 
-			if (this.CurrentFilename == null)
+			if (this.CurrentSource == null)
 				return;
 
 			if (this.ZoomType == ZoomType.FitToWidth)
@@ -181,14 +181,19 @@ void resizeTimer_Tick(object sender, EventArgs e)
 				ZoomToHeight();
 		}
 
-		public void OpenFile(string pdfFilename, string password = null)
-		{
-			if (!File.Exists(pdfFilename))
-				throw new FileNotFoundException(string.Empty, pdfFilename);
+        public void OpenFile(string pdfFilename, string password = null)
+        {
+            if (!File.Exists(pdfFilename))
+                throw new FileNotFoundException(string.Empty, pdfFilename);
+
+            this.Open(new FileSource(pdfFilename), password);
+        }
 
+		public void Open(IPdfSource source, string password = null)
+		{
             var pw = password;
 
-            if (this.PasswordRequired != null && MuPdfWrapper.NeedsPassword(pdfFilename) && pw == null)
+            if (this.PasswordRequired != null && MuPdfWrapper.NeedsPassword(source) && pw == null)
             {
                 var e = new PasswordRequiredEventArgs();
                 this.PasswordRequired(this, e);
@@ -199,21 +204,21 @@ public void OpenFile(string pdfFilename, string password = null)
                 pw = e.Password;
             }
 
-            this.LoadPdfFile(pdfFilename, pw);
-			this.CurrentFilename = pdfFilename;
+            this.LoadPdf(source, pw);
+			this.CurrentSource = source;
             this.CurrentPassword = pw;
 
-			if (this.FileLoaded != null)
-				this.FileLoaded(this, EventArgs.Empty);
+			if (this.PdfLoaded != null)
+				this.PdfLoaded(this, EventArgs.Empty);
 		}
-
-		private void LoadPdfFile(string pdfFilename, string password)
-		{
-			var pageBounds = MuPdfWrapper.GetPageBounds(pdfFilename, this.Rotation, password);
+        
+        private void LoadPdf(IPdfSource source, string password)
+        {
+            var pageBounds = MuPdfWrapper.GetPageBounds(source, this.Rotation, password);
             this.pageRowBounds = CalculatePageRowBounds(pageBounds, this.ViewType);
-			this.TotalPages = pageBounds.Length;
-			this.innerPanel.Load(pdfFilename, password);
-		}
+            this.TotalPages = pageBounds.Length;
+            this.innerPanel.Load(source, password);
+        }
 
 		private PageRowBound[] CalculatePageRowBounds(Size[] singlePageBounds, ViewType viewType)
 		{
@@ -343,7 +348,7 @@ public void RotateLeft()
 		public void Rotate(ImageRotation rotation)
 		{
 			var currentPage = this.innerPanel.GetCurrentPageIndex(this.ViewType) + 1;
-			this.LoadPdfFile(this.CurrentFilename, this.CurrentPassword);
+			this.LoadPdf(this.CurrentSource, this.CurrentPassword);
 			this.innerPanel.GotoPage(currentPage);
 		}
 
@@ -396,7 +401,7 @@ private void UpdateAndReload(Action updateAction, ViewType viewType)
 			var currentPage = -1;
 			var zoom = 1.0f;
 
-			if (this.CurrentFilename != null)
+			if (this.CurrentSource != null)
 			{
 				currentPage = this.innerPanel.GetCurrentPageIndex(viewType) + 1;
 				zoom = this.innerPanel.CurrentZoom;
@@ -408,7 +413,7 @@ private void UpdateAndReload(Action updateAction, ViewType viewType)
 			{
 				Action reloadAction = () =>
 					{
-                        this.LoadPdfFile(this.CurrentFilename, this.CurrentPassword);
+                        this.LoadPdf(this.CurrentSource, this.CurrentPassword);
 						this.innerPanel.Zoom(zoom);
 						this.innerPanel.GotoPage(currentPage);
 					};
@@ -440,7 +445,7 @@ protected override void OnDrop(DragEventArgs e)
                 {
                     string pw = null;
 
-                    if (MuPdfWrapper.NeedsPassword(filename))
+                    if (MuPdfWrapper.NeedsPassword(new FileSource(filename)))
                     {
                         if (this.PasswordRequired == null)
                             return;
@@ -451,7 +456,6 @@ protected override void OnDrop(DragEventArgs e)
                         if (args.Cancel)
                             return;
 
-                        //this.OpenFile(filename, args.Password);
                         pw = args.Password;
                     }