MyImage 控件

Plain Craft Launcher 2/Controls/MyImage.xaml

@@ -0,0 +1,7 @@
+<Border x:Class="MyImage"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             FocusVisualStyle="{x:Null}" x:Name="PanBack"
+             ClipToBounds="True" UseLayoutRounding="False" SnapsToDevicePixels="False" Background="{StaticResource ColorBrushSemiTransparent}">
+    <Image x:Name="PanContent"/>
+</Border>

Plain Craft Launcher 2/Controls/MyImage.xaml.vb

@@ -0,0 +1,32 @@
+Public Class MyImage
+
+    '自定义属性
+    Public Uuid As Integer = GetUuid()
+    Private _Uri As String = ""
+
+    Public Property Source As String
+        Get
+            Return _Uri
+        End Get
+        Set(value As String)
+            _Uri = value
+            RefreshImage()
+        End Set
+    End Property '显示文本
+    Public Shared 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
+                                                                                                                                                                       CType(sender, MyImage)._Uri = e.NewValue.ToString()
+                                                                                                                                                                       CType(sender, MyImage).RefreshImage()
+                                                                                                                                                                   End If
+                                                                                                                                                               End Sub)))
+
+    Public Sub RefreshImage()
+        If Me Is Nothing Then Exit Sub
+        Try
+            PanContent.Source = New MyBitmap(_Uri.ToString())
+        Catch ex As Exception
+            Log(ex, "刷新图片内容失败")
+        End Try
+    End Sub
+End Class

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

@@ -64,24 +64,29 @@ Public Class MyBitmap
                     BitmapCache.Add(FilePathOrResourceName, Pic)
                 End If
             Else
+                Dim tempFile = PathTemp & "Cache\MyImage\" & GetHash(FilePathOrResourceName)
+                If FilePathOrResourceName.StartsWith("http") Then
+                    NetDownload(FilePathOrResourceName, tempFile, True)
+                    FilePathOrResourceName = tempFile
+                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
-            End If
+                        '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
+                End If
         Catch ex As Exception
             Pic = My.Application.TryFindResource(FilePathOrResourceName)
             If Pic Is Nothing Then

Plain Craft Launcher 2/Plain Craft Launcher 2.vbproj

@@ -183,6 +183,9 @@
       <SubType>Designer</SubType>
     </ApplicationDefinition>
     <Compile Include="Controls\IMyRadio.vb" />
+    <Compile Include="Controls\MyImage.xaml.vb">
+      <DependentUpon>MyImage.xaml</DependentUpon>
+    </Compile>
     <Compile Include="Controls\MyComboBox.vb" />
     <Compile Include="Controls\MyComboBoxItem.vb" />
     <Compile Include="Controls\MyCard.vb" />
@@ -191,9 +194,6 @@
     <Compile Include="Controls\MyIconTextButton.xaml.vb">
       <DependentUpon>MyIconTextButton.xaml</DependentUpon>
     </Compile>
-
-
-
     <Compile Include="Modules\Minecraft\ModComp.vb" />
     <Compile Include="Modules\Minecraft\ModJava.vb" />
     <Compile Include="Modules\Minecraft\ModMod.vb" />
@@ -381,6 +381,10 @@
     <Compile Include="Pages\PageSpeedRight.xaml.vb">
       <DependentUpon>PageSpeedRight.xaml</DependentUpon>
     </Compile>
+    <Page Include="Controls\MyImage.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
     <Page Include="Controls\MyExtraButton.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
@@ -478,7 +482,6 @@
       <DependentUpon>FormMain.xaml</DependentUpon>
       <SubType>Code</SubType>
     </Compile>
-
     <Page Include="Modules\Minecraft\MyLocalModItem.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
@@ -913,7 +916,6 @@
     <Resource Include="Images\Heads\MCBBS.png" />
   </ItemGroup>
   <ItemGroup>
-
   </ItemGroup>
   <ItemGroup>
     <Resource Include="Images\Blocks\NeoForge.png" />