:Namespace wpfXamlDemo ⍝ === VARIABLES === L←⎕av[3+⎕io] Copy_b64 ←'iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAMAAADXqc3KAAAAaVBMVEX///8AAAC2tra2tra2tra2trb////+/v62trb9/f309PT7+/vExMSurq6Hh4f4+Pj8/Pz5+fnMzMyenp6/zduoqKilpaXNzc2xsbHu7u6Li4vk5OTa2tro6Oj6+vrm5uaMjIympqby8vJPA9lJAAAABnRSTlMAAM8Q7zCjkYU+AAAAiklEQVR4XoXM2Q7CMAxE0bqAk+7s+/7/H4mJMGNXQdzXo5mCiKK2X01nlCpSkbXdspxk4VCLOHBvDvwbYPSWgxu/JQMn5rotMzA8L+d24wAFB+tvzEeFIGDr/0LlrjwEE2D+CxoZ4aoCLASQgau8mQAsb7hqFLp7L28mBSKKPJgS0AdcgO6xtQm8AN3LEZUq6MiXAAAAAElFTkSuQmCC' Cut_b64 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HandCursor_b64 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_←⍬ _,←'' _,←L,'' NewWindow←_ _←⍬ _,←'' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,'' sample1←_ _←⍬ _,←'' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,'' sample2←_ _←⍬ _,←'' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,' ' _,←L,'' sample3←_ ⎕ex¨ 'L' '_' ⍝ === End of variables definition === (⎕IO ⎕ML ⎕WX)←1 3 3 ∇ cursor←CursorFromBase64String base64String;imageBytes;MS;⎕USING ⍝ Convert a Base64String to a cursor. ⎕USING←'System.IO,mscorlib.dll' 'System,mscorlib.dll' 'System.Windows,WPF/PresentationCore.dll' ⍝ Convert Base64 String to byte[] imageBytes←Convert.FromBase64String(⊂base64String) ⍝ Create a new MemoryStream with the byte[] MS←⎕NEW MemoryStream(⊂imageBytes) ⍝ Create the icon cursor←⎕NEW Input.Cursor MS ⍝ Erase the MemoryStream MS.Close ⋄ MS.Dispose ⋄ MS←⎕NULL ∇ ∇ DemoSample3;imgNames ⍝ Parse the xaml of the variable sample3 win←FixSimpleXaml sample3 ⍝ Get the names of all the 'Image' object that has been fixed in rootObj imgNames←{((⊂'Image')≡¨(⍵.⍎¨(⍵.⎕NL-9)).GetType.Name)/(⍵.⎕NL-9)}win ⍝ Set the Source of all the 'Image'. Each 'Image' must have a Base64 variable of the same name. win{(⍺.⍎⍵).Source←ImageFromBase64String⍎⍵}¨imgNames ⍝ Fix manually the Icon of the main window. win.Icon←ImageFromBase64String Settings_b64 ⍝ Fix manually the Cursor of the main window. win.Cursor←CursorFromBase64String HandCursor_b64 ⍝ Set Routed Events on the whole Window for ClickEvent when a MenuItem or a Button are clicked. ⎕USING←'System.Windows,WPF/PresentationCore.dll' 'System.Windows.Controls.Primitives,WPF/PresentationFramework.dll' win.AddHandler(Controls.MenuItem.ClickEvent)(⎕NEW RoutedEventHandler(⎕OR'__EventHandler')) win.AddHandler(ButtonBase.ClickEvent)(⎕NEW RoutedEventHandler(⎕OR'__EventHandler')) ⍝ Show the window. win.Show ∇ ∇ base64String←FileToBase64String fileName;bytes;⎕USING ⍝ Converts a file to a Base64 String. ⎕USING←'System,mscorlib.dll' ⍝ Read the file bytes←IO.File.ReadAllBytes(⊂,fileName) ⍝ Convert to a Base64 string base64String←Convert.ToBase64String(⊂bytes) ∇ ∇ rootObj←FixSimpleXaml xamlString;names;⎕USING ⍝ Parse simple and correctly formed Xaml that contains only names to fix (no events). ⍝ Each named element(s) object will be attached to rootObject. ⍝ You can see the list of attached elements by doing rootObject.⎕NL -9 ⍝ It is recommended to do not name the root object in the xaml (to prevent a recursive call). ⍝ For 3rd party dll, ⎕USING must be properly initiated before calling this function. ⍝ For Xaml with event callbacks and error trapping see the function: FixXaml. ⍝ ⍝ xamlString = Vector of Characters representing a XAML string ⍝ rootObj = WPF Root Element Object if no error ⍝ = ⎕NULL if error :Trap 0 ⍝ Parse the simple Xaml and obtain the root element object: ⎕USING←'System.Windows.Markup,WPF/PresentationFramework.dll' rootObj←XamlReader.Parse(⊂xamlString) ⍝ Extract the names beginning with 'x:Name' or 'Name' names←{{(,⊃0≠⍴¨⍵)/⍵}{1⊃(((⍵[;1]∊⊂'x:Name')∨(⍵[;1]∊⊂'Name'))/⍵[;2]),⊂''}¨(⎕XML ⍵)[;4]}xamlString ⍝ Assign the value of each names to the root object: :If 0≠⍴names rootObj{⍎'⍺.',⍵,'←⍺.FindName(⊂,⍵)'}¨names :Else ⍝ Do nothing, there is no names. :End :Else ⍝ There is an error. rootObj←⎕NULL :EndTrap ∇ ∇ rootObj←FixXaml xamlString;attribs;caller;data;err;event;events;expr;inter;name;names;ref;⎕USING ⍝ Creates a WPF Object From an APL Character Vector Representing XAML. ⍝ Each named element(s) object will be attached to rootObject. ⍝ You can see the list of attached elements by doing rootObject.⎕NL -9 ⍝ The callback functions of events must begin with '__' (ex.: Click="__Button_Click") ⍝ For 3rd party dll, ⎕USING must be properly initiated before calling this function. ⍝ If there is an error parsing the Xaml, the function will return ⎕NULL with an explanation of the error. ⍝ Parts of code is taken from Dyalog. ⍝ ⍝ xamlString = Vector of Characters representing a XAML string ⍝ rootObj = WPF Root Element Object if no error ⍝ = ⎕NULL (explanation of error) if error ⍝ ⍝ If an Element has an event attribute that begins with '__' and is named, it will be fixed. ⍝ If an Element has an event attribute that begins with '__' and is not named, it will not be fixed and make a warning. ⍝ If an Element has an event attribute that does not begins with '__', it will make an error and return a ⎕NULL rootObj. ⍝ Function of an event attribute must be defined in the WS otherwise it will not be fixed and make a warning. ⍝ Root element with an event must be named, otherwise it is recommended to be nameless. ⍝ Root element name is removed in all cases. Use the rootObj variable directly to access its properties/methods. :Trap 0 ⍝ Check if Valid XML ⍝ The following line will bug with an explanation if there is a syntax error in xamlString. ⎕USING←'System.Xml,System.Xml.dll' (⎕NEW XmlDocument).LoadXml(⊂xamlString) ⍝ The string is valid XML. Clean-it before 'compiling'. data←⎕XML xamlString ⍝ Convert the characters to APL representation of Xml attribs←data[;4] ⍝ Attributes of all the nodes names←{1⊃(((⍵[;1]∊⊂'x:Name')∨(⍵[;1]∊⊂'Name'))/⍵[;2]),⊂''}¨attribs ⍝ Find all 'x:Name' and 'Name' attributes events←⊃⍪/names{(⊂⍺),((⊂'__')≡¨2↑¨⊃¨⍵[;2])⌿⍵}¨attribs ⍝ Events are all attributes with values beginning with '__' data[;4]←{(~(⊂'__')≡¨2↑¨⊃¨⍵[;2])⌿⍵}¨attribs ⍝ Remove the events: attribute definition beginning with '__' data[1;4]←⊂{(~(⊂'x:Class')≡¨7↑¨⊃¨⍵[;1])⌿⍵}⊃data[1;4] ⍝ Remove the x:Class attribute if present in first node xamlString←⎕XML data ⍝ Convert the APL representation of Xml to characters :Else ⍝ There is an Error. Exit. →ERROR :EndTrap ⍝ Obtain the Root Element Object of the clean-up XAML String. ⍝ You can get an error here if, for example, there is an event that does not begin with '__' and was not remove in Xaml Clean-up. :Trap 0 ⎕USING←'System.Windows.Markup,WPF/PresentationFramework.dll' rootObj←XamlReader.Parse(⊂xamlString) ⍝ ↓↓↓ Alternative way of doing the same thing. ⍝ ⎕USING ← '' 'System.IO' 'System.Xml,system.xml.dll' 'System.Windows,WPF/PresentationFramework.dll' 'System.Windows.Markup' ⍝ rootObj ← XamlReader.Load ⎕NEW XmlTextReader (⎕NEW StringReader (⊂xamlString)) rootObj.∆Events←events ⍝ Optional: List the events in the property ∆Events :Else ⍝ There is an error. Exit. →ERROR :EndTrap ⍝ Fix the events of the rootObj before removing its name: ⍝ Will bug if the rootObj does not have a name. :Trap 0 :If 1∊events[;1]∊⊂rootObj.Name ⍝ Check if the rootObj has an event :For (ref event expr) :In ↓(events[;1]∊⊂rootObj.Name)⌿events ⍝ Loop through the events caller←(1⊃⎕NSI),'.' ⍝ Namespace that is calling this function expr←((~'#'∊expr)/caller),expr ⍝ Add the namespace of the caller to the name of the event ⍎'rootObj.on',event,'←''',expr,'''' ⍝ Hook-up the event :EndFor :EndIf :Else ⍝ Do nothing. rootObj does not have a name or events to fix. :EndTrap ⍝ Create refs to all named child objects :Trap 0 names←(,⊃0≠⍴¨names)/names ⍝ Keep only the not empty names names←(0=rootObj.⎕NC↑names)/names ⍝ Only names which do not already have a meaning names←(~names∊⊂rootObj.Name)/names ⍝ Remove the name of the rootObj to prevent a recursive entry. events←(~events[;1]∊⊂rootObj.Name)⌿events ⍝ Remove the event(s) of the rootObj from the list now that they have been fixed. :Else ⍝ Do nothing. The previous 2 lines will bug if rootObj does not have a name. :EndTrap ⍝ Add a reference of all the named object to the rootObj. ⍝ FindName will not find the names on certain object (like template), ⍝ so we need to iterate and Trap the error when the name is not found. :For name :In names :Trap 0 ⍎'rootObj.(',name,')←rootObj.FindName ⊂name' :Else ⎕←'FixXaml Warning - Name Not found: ',name :EndTrap :EndFor ⍝ Show a Warning for Events that begins with '__' that will not be fixed because they are nameless: :If 0≠↑⍴inter←(~events[;1]∊names)⌿events ⎕←(⎕UCS 13),'FixXaml Warning - Following Nameless Event(s) Are Not Fixed:' ⎕←inter :End ⍝ Hook-up events events←(events[;1]∊names)⌿events ⍝ Named objects only caller←(1⊃⎕NSI),'.' ⍝ Namespace that is calling this function :For (ref event expr) :In ↓events :Trap 0 ⍝ Add the namespace of the caller to the name of the event expr←((~'#'∊expr)/caller),expr :If 0≠⎕NC expr ⍝ Callback function exist. Hook-up the event. ⍎'rootObj.',ref,'.on',event,'←''',expr,'''' :Else ⍝ Callback function does not exist. Show warning and do not fix the event. ⎕←'FixXaml Warning - Function ',expr,' does not exist. The Event ''',event,''' of ''',ref,''' is not fixed.' :End :Else ⍝ There is an error. Exit. →ERROR :EndTrap :EndFor →0 ⍝ rootObj is returned here if there is no error. ERROR: ⍝ Build the Error Message :If 90≠⎕EN ⍝ APL Error err←(1⊃⎕DM),': ',{(' '=1↑⍵)↓((1↓a,0)∨a←' '≠⍵)/⍵}(2⊃⎕DM),(⎕UCS 13) :Else ⍝ .Net Error :Trap 0 ⍝ Show the value of ⎕EXCEPTION.Message if not ⎕NULL. err←('EXCEPTION: ',⎕EXCEPTION.Message),(⎕UCS 13) :Else ⍝ Sometimes ⎕EXCEPTION is (NULL) and will bug here. err←'Exception (NULL): Unknown error',(⎕UCS 13) :EndTrap :End rootObj←⎕NULL err ∇ ∇ winParent←GetWindowParent object ⍝ Obtain the Windows Parent (Root Object) of a children's element. winParent←object :While 'System.Windows.Window'≢winParent.GetType.ToString winParent←winParent.Parent :EndWhile ∇ ∇ bmpimg←ImageFromBase64String base64String;imageBytes;MS;⎕USING ⍝ Convert a Base64String to a System.Windows.Media.Imaging.WriteableBitmap ⎕USING←'System.IO,mscorlib.dll' 'System,mscorlib.dll' 'System.Windows.Media.Imaging,WPF/PresentationCore.dll' ⍝ Convert Base64 String to byte[] as numbers. imageBytes←Convert.FromBase64String(⊂base64String) ⍝ Create a new MemoryStream with the byte[] MS←⎕NEW MemoryStream(⊂imageBytes) ⍝ Create a BitmapImage Object from the Memory Stream bmpimg←⎕NEW BitmapImage bmpimg.BeginInit bmpimg.StreamSource←MS bmpimg.EndInit ⍝ Create a WriteableBitmap that does not need the MemoryStream to persist ⍝ That way it is possible to erase the MemoryStream after creating the Image bmpimg←⎕NEW WriteableBitmap bmpimg ⍝ Erase the MemoryStream MS.Close ⋄ MS.Dispose ⋄ MS←⎕NULL ∇ ∇ __Button_Click(sender event);rootObject;⎕USING ⍝ Click Event Handler for the Button ⍝ Get the Root Object from the Button object (sender) rootObject←GetWindowParent sender ⍝ Assign the new text to the TextBox. rootObject.textBox1.Text←'I Was Clicked !' ⍝ Change some colors of the TextBox ⎕USING←'System.Windows.Media,WPF/PresentationCore.dll' 'System.Windows,WPF/PresentationFramework.dll' rootObject.textBox1.Background←⎕NEW SolidColorBrush(Colors.Yellow) rootObject.textBox1.BorderBrush←⎕NEW SolidColorBrush(Colors.Red) rootObject.textBox1.BorderThickness←⎕NEW Thickness 3 ∇ ∇ rootObj←ScrubAndFix xamlString;err;names;nodeNumber;reader;stringReader;writer;⎕USING ⍝ Function to remove the Class and Events elements of Xaml and fix the resulting Xaml. ⍝ Each named element(s) object will be attached to rootObject. ⍝ Root element name is removed in all cases. Use the rootObj directly to access its properties/methods. ⍝ This function is most usefull when experimenting with Xaml taken directly from the Web but is slower than FixXaml. ⍝ Inspired from the code of XAMLPAD2009. ⍝ ⍝ XamlString = Vector of Characters representing a XAML string ⍝ rootObj = WPF Root Element Object if no error ⍝ = ⎕NULL (explanation of error) if error :Trap 0 ⎕USING←'System.IO' 'System.Windows.Markup,WPF/PresentationFramework.dll' 'System.Xaml,System.Xaml.dll' stringReader←⎕NEW StringReader(⊂xamlString) reader←⎕NEW XamlXmlReader(stringReader XamlReader.GetWpfSchemaContext) writer←⎕NEW XamlObjectWriter(reader.SchemaContext) ⎕USING←0⍴⊂'' names←'' ⍝ Initial value of the names to fix. nodeNumber←0 ⍝ Initial value of the node number. :While reader.Read :If 'StartObject'≡⍕reader.NodeType ⍝ Will increment of 1 each time a new node (with a new object) begins. nodeNumber+←1 :End :If 'StartMember'≡⍕reader.NodeType :AndIf reader.Member.Name≡'Class' {}reader.Read {}reader.Read :ElseIf 'StartMember'≡⍕reader.NodeType :AndIf reader.Member.IsEvent {}reader.Read {}reader.Read :ElseIf 'StartMember'≡⍕reader.NodeType :AndIf reader.Member.Name≡'Name' writer.WriteNode(reader) {}reader.Read writer.WriteNode(reader) ⍝ Check if reader is on first node :If 1≠nodeNumber ⍝ reader is not on first node. Keep the name. names,←⊂reader.Value :Else ⍝ reader is on first node. Don't keep the name. :End {}reader.Read writer.WriteNode(reader) :Else writer.WriteNode(reader) :End :EndWhile rootObj←writer.Result ⍝ Assign the value of each names found to the root object: :If 0≠⍴names rootObj{⍎'⍺.',⍵,'←⍺.FindName(⊂,⍵)'}¨names :Else ⍝ Do nothing, there is no names. :End :Else ⍝ Build the Error Message :If 90≠⎕EN ⍝ APL Error err←(1⊃⎕DM),': ',{(' '=1↑⍵)↓((1↓a,0)∨a←' '≠⍵)/⍵}(2⊃⎕DM),(⎕UCS 13) :Else ⍝ .Net Error :Trap 0 ⍝ Show the value of ⎕EXCEPTION.Message if not ⎕NULL. err←('EXCEPTION: ',⎕EXCEPTION.Message),(⎕UCS 13) :Else ⍝ Sometimes ⎕EXCEPTION is (NULL) and will bug here. err←'Exception (NULL): Unknown error',(⎕UCS 13) :EndTrap :End rootObj←⎕NULL err :EndTrap ∇ ∇ __EventHandler(sender event);name ⍝ Single Event Handler for the Window ⍝ Get name of the control that was clicked name←event.Source.Name ⍝ sender is the Root Object in this case because ⍝ the routed event was attached to it. sender.lStatusBar.Content←'I Was Clicked: ',name ⍝ Select the code to be executed: :Select name :Case 'mnuCut' :Case 'mnuCopy' :Case 'mnuPaste' :Case 'mnuPrint' :Case 'mnuQuit' :Case 'mnuAbout' :Case 'btnButton1' :Case 'btnButton2' :Case 'btnButton3' :Else 'Error: Unknow Name' :EndSelect ∇ :EndNamespace