MyImage 控件

Plain Craft Launcher 2/Controls/MyImage.vb

@@ -0,0 +1,29 @@
+Public Class MyImage
+    Inherits Image
+
+    '事件
+
+    Private _SourceData As String = ""
+
+    ''' <summary>
+    ''' 重写Image的Source属性
+    ''' </summary>
+    Public Shadows Property Source As String
+        Get
+            Return _SourceData
+        End Get
+        Set(value As String)
+            If String.IsNullOrEmpty(value) Then Exit Property
+            _SourceData = value
+            MyBase.Source = New MyBitmap(_SourceData)
+        End Set
+    End Property
+    Public Shared Shadows ReadOnly SourceProperty As DependencyProperty = DependencyProperty.Register("Source", GetType(String), GetType(MyImage), New PropertyMetadata(New PropertyChangedCallback(
+                                                                                                                                                               Sub(sender As DependencyObject, e As DependencyPropertyChangedEventArgs)
+                                                                                                                                                                   If Not IsNothing(sender) Then
+                                                                                                                                                                       If String.IsNullOrEmpty(e.NewValue.ToString()) Then Exit Sub
+                                                                                                                                                                       CType(sender, MyImage).Source = e.NewValue.ToString()
+                                                                                                                                                                   End If
+                                                                                                                                                               End Sub)))
+
+End Class

Plain Craft Launcher 2/Modules/Base/MyBitmap.vb

@@ -64,23 +64,28 @@ Public Class MyBitmap
                     BitmapCache.Add(FilePathOrResourceName, Pic)
                 End If
             Else
+                Dim InputStream As Stream
+                If FilePathOrResourceName.StartsWithF("http") Then '在线图片（这里判断 https:\\ 或 http:\\ 会出问题）
+                    Dim Client = New Net.WebClient()
+                    InputStream = New MemoryStream(Client.DownloadData(FilePathOrResourceName))
+                Else
+                    InputStream = New MemoryStream(File.ReadAllBytes(FilePathOrResourceName))
+                End If
                 '使用这种自己接管 FileStream 的方法加载才能解除文件占用
-                Using InputStream As New FileStream(FilePathOrResourceName, FileMode.Open)
-                    '判断是否为 WebP 文件头
-                    Dim Header(1) As Byte
-                    InputStream.Read(Header, 0, 2)
-                    InputStream.Seek(0, SeekOrigin.Begin)
-                    If Header(0) = 82 AndAlso Header(1) = 73 Then
-                        '读取 WebP
-                        If Is32BitSystem Then Throw New Exception("不支持在 32 位系统下加载 WebP 图片。")
-                        Dim FileBytes(InputStream.Length - 1) As Byte
-                        InputStream.Read(FileBytes, 0, FileBytes.Length)
-                        Dim Decoder As New Imazen.WebP.SimpleDecoder()
-                        Pic = Decoder.DecodeFromBytes(FileBytes, FileBytes.Length)
-                    Else
-                        Pic = New System.Drawing.Bitmap(InputStream)
-                    End If
-                End Using
+                '判断是否为 WebP 文件头
+                Dim Header(1) As Byte
+                InputStream.Read(Header, 0, 2)
+                InputStream.Seek(0, SeekOrigin.Begin)
+                If Header(0) = 82 AndAlso Header(1) = 73 Then
+                    '读取 WebP
+                    If Is32BitSystem Then Throw New Exception("不支持在 32 位系统下加载 WebP 图片。")
+                    Dim FileBytes(InputStream.Length - 1) As Byte
+                    InputStream.Read(FileBytes, 0, FileBytes.Length)
+                    Dim Decoder As New Imazen.WebP.SimpleDecoder()
+                    Pic = Decoder.DecodeFromBytes(FileBytes, FileBytes.Length)
+                Else
+                    Pic = New System.Drawing.Bitmap(InputStream)
+                End If
             End If
         Catch ex As Exception
             Pic = My.Application.TryFindResource(FilePathOrResourceName)

Plain Craft Launcher 2/Plain Craft Launcher 2.vbproj

@@ -191,9 +191,7 @@
     <Compile Include="Controls\MyIconTextButton.xaml.vb">
       <DependentUpon>MyIconTextButton.xaml</DependentUpon>
     </Compile>
-
-
-
+    <Compile Include="Controls\MyImage.vb" />
     <Compile Include="Modules\Minecraft\ModComp.vb" />
     <Compile Include="Modules\Minecraft\ModJava.vb" />
     <Compile Include="Modules\Minecraft\ModMod.vb" />
@@ -478,7 +476,6 @@
       <DependentUpon>FormMain.xaml</DependentUpon>
       <SubType>Code</SubType>
     </Compile>
-
     <Page Include="Modules\Minecraft\MyLocalModItem.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
@@ -913,7 +910,6 @@
     <Resource Include="Images\Heads\MCBBS.png" />
   </ItemGroup>
   <ItemGroup>
-
   </ItemGroup>
   <ItemGroup>
     <Resource Include="Images\Blocks\NeoForge.png" />