快捷導(dǎo)航

基于WPF制作一個(gè)可編程畫板

更新時(shí)間：2023年05月04日 10:32:21 作者：竹天笑

這篇文章主要為大家詳細(xì)介紹了如何基于WPF制作一個(gè)可編程畫板，文中的示例代碼講解詳細(xì)，對(duì)我們學(xué)習(xí)或工作有一定幫助，感興趣的小伙伴可以了解一下

先上一張效果動(dòng)圖

同樣老規(guī)矩，先上源碼地址：https://gitee.com/akwkevin/aistudio.-wpf.-diagram

簡(jiǎn)單使用，自定義一個(gè)text模塊的代碼如下

Code?=?@"using?System;
namespace?AIStudio.Wpf.CSharpScript
{
????public?class?Writer
????{???
????????public?string?StringValue{?get;?set;}?=?""Welcome?to?AIStudio.Wpf.Diagram"";
????????public?string?Execute()
????????{
????????????return?StringValue;
????????}
????}
}";

是不是很簡(jiǎn)單。

本次擴(kuò)展的主要內(nèi)容

1.可編程模塊，使用C#語言。

2.控制臺(tái)打印控件，可以打印程序中的Console.WriteLine數(shù)據(jù)

3.為了便于大家使用，寫了一個(gè)Box工廠分配Box的數(shù)據(jù)流向效果圖。

可編程模塊的實(shí)現(xiàn)原理

使用Microsoft.CodeAnalysis.CSharp.Scripting對(duì)代碼進(jìn)行編譯，生成Assembly，然后對(duì)Assembly反射獲得對(duì)象，對(duì)象內(nèi)部固定有一個(gè)Execute方法，每次掃描的時(shí)候執(zhí)行即可。

1.編譯使用的Using,必須添加引用集，為了省事，把整個(gè)程序的Reference都放入進(jìn)行編譯，獲得引用的核心代碼如下：

var?references?=?AppDomain.CurrentDomain.GetAssemblies().Where(p?=>?!p.IsDynamic?&&?!string.IsNullOrEmpty(p.Location)).Select(x?=>?MetadataReference.CreateFromFile(x.Location)).ToList();
//Costura.Fody壓縮后，無Location，讀取資源文件中的reference
foreach?(var?assemblyEmbedded?in?AppDomain.CurrentDomain.GetAssemblies().Where(p?=>?!p.IsDynamic?&&?string.IsNullOrEmpty(p.Location)))
{
????using?(var?stream?=?Assembly.GetEntryAssembly().GetManifestResourceStream($"costura.{assemblyEmbedded.GetName().Name.ToLowerInvariant()}.dll.compressed"))
????{
????????if?(stream?!=?null)
????????{
????????????using?(var?compressStream?=?new?DeflateStream(stream,?CompressionMode.Decompress))
????????????{
????????????????var?memStream?=?new?MemoryStream();
????????????????CopyTo(compressStream,?memStream);
????????????????memStream.Position?=?0;
????????????????references.Add(MetadataReference.CreateFromStream(memStream));
????????????}
????????}
????}
}

2.動(dòng)態(tài)編譯的代碼的核心代碼如下：

public?static?Assembly?GenerateAssemblyFromCode(string?code,?out?string?message)
{
????Assembly?assembly?=?null;
????message?=?"";
????//?叢代碼中轉(zhuǎn)換表達(dá)式樹
????SyntaxTree?syntaxTree?=?CSharpSyntaxTree.ParseText(code);
????//?隨機(jī)程序集名稱
????string?assemblyName?=?Path.GetRandomFileName();
????//?引用
????//?創(chuàng)建編譯對(duì)象
????CSharpCompilation?compilation?=?CSharpCompilation.Create(assemblyName,?new[]?{?syntaxTree?},?References,?new?CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary));
????using?(var?ms?=?new?MemoryStream())
????{
????????//?將編譯好的IL代碼放入內(nèi)存流
????????EmitResult?result?=?compilation.Emit(ms);
????????//?編譯失敗，提示
????????if?(!result.Success)
????????{
????????????IEnumerable<Diagnostic>?failures?=?result.Diagnostics.Where(diagnostic?=>
????????????????????????diagnostic.IsWarningAsError?||
????????????????????????diagnostic.Severity?==?DiagnosticSeverity.Error).ToList();
????????????foreach?(Diagnostic?diagnostic?in?failures)
????????????{
????????????????message?+=?$"{diagnostic.Id}:?{diagnostic.GetMessage()}";
????????????????Console.WriteLine(message);
????????????}
????????}
????????else
????????{
????????????//?編譯成功，從內(nèi)存中加載編譯好的程序集
????????????ms.Seek(0,?SeekOrigin.Begin);
????????????assembly?=?Assembly.Load(ms.ToArray());
????????}
????}
????return?assembly;
}

3.獲得編譯后的程序集，以及執(zhí)行。

//?反射獲取程序集中?的類
Type?type?=?assembly.GetTypes().FirstOrDefault(p?=>?p.FullName.StartsWith("AIStudio.Wpf"));???//assembly.GetType("AIStudio.Wpf.CSharpScript.Write");
//?創(chuàng)建該類的實(shí)例
object?obj?=?Activator.CreateInstance(type);
//?通過反射方式調(diào)用類中的方法。
var?result?=?type.InvokeMember("Execute",
????BindingFlags.Default?|?BindingFlags.InvokeMethod,
????null,
????obj,
????new?object[]?{?});

代碼編輯模塊的實(shí)現(xiàn)

選擇AvalonEdit控件，另外為了使用VS2019_Dark的黑色皮膚，引用官方Demo中的HL和TextEditlib實(shí)現(xiàn)自定義換膚。

官方Demo的換膚寫的超級(jí)復(fù)雜，看不懂，但是我們只要理解換膚的核心部分就是動(dòng)態(tài)資源字典，因此我簡(jiǎn)化下，改進(jìn)后的核心換膚代碼如下：

public?class?TextEditorThemeHelper
{
????static?Dictionary<string,?ResourceDictionary>?ThemeDictionary?=?new?Dictionary<string,?ResourceDictionary>();
????public?static?List<string>?Themes?=?new?List<string>()?{?"Dark",?"Light",?"TrueBlue",?"VS2019_Dark"?};
????public?static?string?CurrentTheme?{?get;?set;?}
????static?TextEditorThemeHelper()
????{
????????var?resource?=?new?ResourceDictionary?{?Source?=?new?Uri("/TextEditLib;component/Themes/LightBrushs.xaml",?UriKind.RelativeOrAbsolute)?};
????????ThemeDictionary.Add("Light",?resource);
????????resource?=?new?ResourceDictionary?{?Source?=?new?Uri("/TextEditLib;component/Themes/DarkBrushs.xaml",?UriKind.RelativeOrAbsolute)?};
????????ThemeDictionary.Add("Dark",?resource);
????????Application.Current.Resources.MergedDictionaries.Add(resource);
????}
????///?<summary>
????///?設(shè)置主題
????///?</summary>
????///?<param?name="theme"></param>
????public?static?void?SetCurrentTheme(string?theme)
????{
????????OnAppThemeChanged(theme);//切換到VS2019_Dark
????????CurrentTheme?=?theme;
????}
????///?<summary>
????///?Invoke?this?method?to?apply?a?change?of?theme?to?the?content?of?the?document
????///?(eg:?Adjust?the?highlighting?colors?when?changing?from?"Dark"?to?"Light"
????///??????WITH?current?text?document?loaded.)
????///?</summary>
????internal?static?void?OnAppThemeChanged(string?theme)
????{
????????ThemedHighlightingManager.Instance.SetCurrentTheme(theme);
????????if?(ThemeDictionary.ContainsKey(theme))
????????{
????????????foreach?(var?key?in?ThemeDictionary[theme].Keys)
????????????{
????????????????ApplyToDynamicResource(key,?ThemeDictionary[theme][key]);
????????????}
????????}
????????//?Does?this?highlighting?definition?have?an?associated?highlighting?theme?
????????else?if?(ThemedHighlightingManager.Instance.CurrentTheme.HlTheme?!=?null)
????????{
????????????//?A?highlighting?theme?with?GlobalStyles?
????????????//?Apply?these?styles?to?the?resource?keys?of?the?editor
????????????foreach?(var?item?in?ThemedHighlightingManager.Instance.CurrentTheme.HlTheme.GlobalStyles)
????????????{
????????????????switch?(item.TypeName)
????????????????{
????????????????????case?"DefaultStyle":
????????????????????????ApplyToDynamicResource(TextEditLib.Themes.ResourceKeys.EditorBackground,?item.backgroundcolor);
????????????????????????ApplyToDynamicResource(TextEditLib.Themes.ResourceKeys.EditorForeground,?item.foregroundcolor);
????????????????????????break;
????????????????????case?"CurrentLineBackground":
????????????????????????ApplyToDynamicResource(TextEditLib.Themes.ResourceKeys.EditorCurrentLineBackgroundBrushKey,?item.backgroundcolor);
????????????????????????ApplyToDynamicResource(TextEditLib.Themes.ResourceKeys.EditorCurrentLineBorderBrushKey,?item.bordercolor);
????????????????????????break;
????????????????????case?"LineNumbersForeground":
????????????????????????ApplyToDynamicResource(TextEditLib.Themes.ResourceKeys.EditorLineNumbersForeground,?item.foregroundcolor);
????????????????????????break;
????????????????????case?"Selection":
????????????????????????ApplyToDynamicResource(TextEditLib.Themes.ResourceKeys.EditorSelectionBrush,?item.backgroundcolor);
????????????????????????ApplyToDynamicResource(TextEditLib.Themes.ResourceKeys.EditorSelectionBorder,?item.bordercolor);
????????????????????????break;
????????????????????case?"Hyperlink":
????????????????????????ApplyToDynamicResource(TextEditLib.Themes.ResourceKeys.EditorLinkTextBackgroundBrush,?item.backgroundcolor);
????????????????????????ApplyToDynamicResource(TextEditLib.Themes.ResourceKeys.EditorLinkTextForegroundBrush,?item.foregroundcolor);
????????????????????????break;
????????????????????case?"NonPrintableCharacter":
????????????????????????ApplyToDynamicResource(TextEditLib.Themes.ResourceKeys.EditorNonPrintableCharacterBrush,?item.foregroundcolor);
????????????????????????break;
????????????????????default:
????????????????????????throw?new?System.ArgumentOutOfRangeException("GlobalStyle?named?'{0}'?is?not?supported.",?item.TypeName);
????????????????}
????????????}
????????}
????}
????///?<summary>
????///?Re-define?an?existing?<seealso?cref="SolidColorBrush"/>?and?backup?the?originial?color
????///?as?it?was?before?the?application?of?the?custom?coloring.
????///?</summary>
????///?<param?name="key"></param>
????///?<param?name="newColor"></param>
????private?static?void?ApplyToDynamicResource(ComponentResourceKey?key,?Color??newColor)
????{
????????if?(Application.Current.Resources[key]?==?null?||?newColor?==?null)
????????????return;
????????//?Re-coloring?works?with?SolidColorBrushs?linked?as?DynamicResource
????????if?(Application.Current.Resources[key]?is?SolidColorBrush)
????????{
????????????//backupDynResources.Add(resourceName);
????????????var?newColorBrush?=?new?SolidColorBrush((Color)newColor);
????????????newColorBrush.Freeze();
????????????Application.Current.Resources[key]?=?newColorBrush;
????????}
????}
????private?static?void?ApplyToDynamicResource(object?key,?object?newValue)
????{
????????if?(Application.Current.Resources[key]?==?null?||?newValue?==?null)
????????????return;
????????Application.Current.Resources[key]?=?newValue;
????}
}

使用方法：

TextEditorThemeHelper.SetCurrentTheme("VS2019_Dark");

或者 TextEditorThemeHelper.SetCurrentTheme("TrueBlue");

或者 TextEditorThemeHelper.SetCurrentTheme("Dark");

或者 TextEditorThemeHelper.SetCurrentTheme("Light");

是不是超級(jí)簡(jiǎn)單。

代碼編輯模塊的編譯與測(cè)試

WPF打印控制臺(tái)數(shù)據(jù)

///控制臺(tái)打印方法支持切換運(yùn)行輸出方法Console.SetOut，核心代碼如下：
public?class?ConsoleWriter?:?TextWriter
{
????private?readonly?Action<string>?_Write;
????private?readonly?Action<string>?_WriteLine;
????private?readonly?Action<string,?string,?string,?int>?_WriteCallerInfo;
????public?ConsoleWriter()
????{
????}
????///?<summary>
????///?Console?輸出重定向
????///?</summary>
????///?<param?name="write">日志方法委托（針對(duì)于?Write）</param>
????///?<param?name="writeLine">日志方法委托（針對(duì)于?WriteLine）</param>
????public?ConsoleWriter(Action<string>?write,?Action<string>?writeLine,?Action<string,?string,?string,?int>?writeCallerInfo)
????{
????????_Write?=?write;
????????_WriteLine?=?writeLine???write;
????????_WriteCallerInfo?=?writeCallerInfo;
????}
????///?<summary>
????///?Console?輸出重定向
????///?</summary>
????///?<param?name="write">日志方法委托（針對(duì)于?Write）</param>
????///?<param?name="writeLine">日志方法委托（針對(duì)于?WriteLine）</param>
????public?ConsoleWriter(Action<string>?write,?Action<string>?writeLine)
????{
????????_Write?=?write;
????????_WriteLine?=?writeLine;
????}
????///?<summary>
????///?Console?輸出重定向
????///?</summary>
????///?<param?name="write">日志方法委托</param>
????public?ConsoleWriter(Action<string>?write)
????{
????????_Write?=?write;
????????_WriteLine?=?write;
????}
????///?<summary>
????///?Console?輸出重定向（帶調(diào)用方信息）
????///?</summary>
????///?<param?name="write">日志方法委托（后三個(gè)參數(shù)為?CallerFilePath、CallerMemberName、CallerLineNumber）</param>
????public?ConsoleWriter(Action<string,?string,?string,?int>?write)
????{
????????_WriteCallerInfo?=?write;
????}
????///?<summary>
????///?使用?UTF-16?避免不必要的編碼轉(zhuǎn)換
????///?</summary>
????public?override?Encoding?Encoding?=>?Encoding.Unicode;
????///?<summary>
????///?最低限度需要重寫的方法
????///?</summary>
????///?<param?name="value">消息</param>
????public?override?void?Write(string?value)
????{
????????if?(_WriteCallerInfo?!=?null)
????????{
????????????WriteWithCallerInfo(value);
????????????return;
????????}
????????_Write(value);
????}
????///?<summary>
????///?為提高效率直接處理一行的輸出
????///?</summary>
????///?<param?name="value">消息</param>
????public?override?void?WriteLine(string?value)
????{
????????if?(_WriteCallerInfo?!=?null)
????????{
????????????WriteWithCallerInfo(value);
????????????return;
????????}
????????_WriteLine(value);
????}
????///?<summary>
????///?帶調(diào)用方信息進(jìn)行寫消息
????///?</summary>
????///?<param?name="value">消息</param>
????private?void?WriteWithCallerInfo(string?value)
????{
????????//3、System.Console.WriteLine?->?2、System.IO.TextWriter?+?SyncTextWriter.WriteLine?->?1、DotNet.Utilities.ConsoleHelper.ConsoleWriter.WriteLine?->?0、DotNet.Utilities.ConsoleHelper.ConsoleWriter.WriteWithCallerInfo
????????var?callInfo?=?ClassHelper.GetMethodInfo(4);
????????_WriteCallerInfo(value,?callInfo?.FileName,?callInfo?.MethodName,?callInfo?.LineNumber????0);
????}
????public?override?void?Close()
????{
????????var?standardOutput?=?new?StreamWriter(Console.OpenStandardOutput());
????????standardOutput.AutoFlush?=?true;
????????Console.SetOut(standardOutput);
????????base.Close();
????}
}

使用：

ConsoleWriter ConsoleWriter = new ConsoleWriter(_write, _writeLine);

Console.SetOut(ConsoleWriter);

動(dòng)態(tài)編譯模塊的輸入輸出自動(dòng)生成

1.輸入輸出模塊：public string Value{ get; set;}

2.輸入模塊：public string Value{private get; set;}

3.輸出模塊：public string Value{get;private set;}

4.與外部交互模塊：private string Value{ get; set;} ,必須同名同屬性。核心代碼如下：

public?static?Dictionary<string,?List<PropertyInfo>>?GetPropertyInfo(Type?type)
{
????Dictionary<string,?List<PropertyInfo>>?puts?=?new?Dictionary<string,?List<PropertyInfo>>()
????{
????????{"Input",?new?List<PropertyInfo>()?},
????????{"Output",?new?List<PropertyInfo>()?},
????????{"Input_Output",?new?List<PropertyInfo>()?},
????????{"Inner",?new?List<PropertyInfo>()?}
????};
????try
????{
????????foreach?(System.Reflection.PropertyInfo?info?in?type.GetProperties(BindingFlags.Public?|?BindingFlags.Instance))
????????{
????????????if?(info.CanRead?&&?info.CanWrite)
????????????{
????????????????if?(info.SetMethod.IsPublic?&&?info.GetMethod.IsPublic)
????????????????{
????????????????????puts["Input_Output"].Add(info);
????????????????}
????????????????else?if?(info.SetMethod.IsPublic)
????????????????{
????????????????????puts["Input"].Add(info);
????????????????}
????????????????else?if?(info.GetMethod.IsPublic)
????????????????{
????????????????????puts["Output"].Add(info);
????????????????}
????????????}
????????????else?if?(info.CanRead)
????????????{
????????????????if?(info.GetMethod.IsPublic)
????????????????{
????????????????????puts["Output"].Add(info);
????????????????}
????????????}
????????}
????????foreach?(System.Reflection.PropertyInfo?info?in?type.GetProperties(BindingFlags.NonPublic?|?BindingFlags.Instance))
????????{
????????????if?(info.CanRead)
????????????{
????????????????puts["Inner"].Add(info);
????????????}
????????}
????}
????catch?(Exception?ex)
????{
????}
????return?puts;
}

最后介紹一下Demo的實(shí)現(xiàn)

1#.Int整數(shù)模塊，界面定義一個(gè)TextBox綁定Int模塊的輸入管腳。 2#.Box產(chǎn)生模塊，如果內(nèi)部數(shù)組為空，那么按照輸入管腳的數(shù)量初始化一個(gè)容量為輸入整數(shù)數(shù)量的數(shù)組（隨機(jī)顏色與形狀），然后把數(shù)據(jù)放到輸出管腳，當(dāng)數(shù)據(jù)被取走后，下一個(gè)數(shù)據(jù)再次放到輸出管腳。 3#.Bool模塊，為false的時(shí)候按照顏色進(jìn)行分配，為true的時(shí)候按照形狀進(jìn)行分配。4#.Box分配模塊，當(dāng)輸入管腳為空的時(shí)候，2#模塊的輸出可以移動(dòng)到4#的輸入管腳，移動(dòng)時(shí)間為1s，移動(dòng)完成后，清除2#模塊的輸出。同時(shí)把數(shù)據(jù)按照顏色或者形狀分配到輸出，同時(shí)把輸入管腳清除。按照顏色分配時(shí)：（1.如果顏色為紅色，那么輸出到1號(hào) （2.如果顏色為橙色，那么輸出到2號(hào) （3.如果顏色為黃色，那么輸出到3號(hào) （4.如果顏色為綠色，那么輸出到4號(hào) （5.如果顏色為青色，那么輸出到5號(hào) （6.如果顏色為藍(lán)色，那么輸出到6號(hào) （7.如果顏色為紫色，那么輸出到7號(hào) 按照形狀分配時(shí)：（1.如果形狀為圓形，那么輸出到1號(hào) （2.如果形狀為三角形，那么輸出到2號(hào) （3.如果形狀為方形，那么輸出到3號(hào) （4.如果形狀為菱形，那么輸出到4號(hào) （5.如果形狀為梯形，那么輸出到5號(hào) （6.如果形狀為五角星，那么輸出到6號(hào) （7.如果形狀為六邊形，那么輸出到7號(hào) 6#.有兩個(gè)紅色|圓形收集器（7#，8#），按兩個(gè)容器中的數(shù)量比較反饋，均勻分配到這兩個(gè)收集器中。 9#，10#，11#，12#，13#，14#按照管腳取走數(shù)據(jù)即可。

以上就是基于WPF制作一個(gè)可編程畫板的詳細(xì)內(nèi)容，更多關(guān)于WPF可編程畫板的資料請(qǐng)關(guān)注腳本之家其它相關(guān)文章！

您可能感興趣的文章: