improve:展台UI

Ink Canvas/MainWindow.xaml

@@ -4973,7 +4973,7 @@
                                                                 <Border Margin="0,4" Width="160" BorderBrush="{DynamicResource BoardFloatBarBorderBrush}"
                                                                         BorderThickness="1">
                                                                     <Grid>
-                                                                        <Viewbox Width="160">
+                                                                        <Viewbox Width="160" Height="120" Stretch="Uniform">
                                                                             <InkCanvas EditingMode="None"
                                                                                 Background="{Binding ElementName=GridBackgroundCover, Path=Background}"
                                                                                 Strokes="{Binding Strokes}"
@@ -7141,7 +7141,7 @@
                                                                 <Border Margin="0,4" Width="160" BorderBrush="{DynamicResource BoardFloatBarBorderBrush}"
                                                                         BorderThickness="1">
                                                                     <Grid>
-                                                                        <Viewbox Width="160">
+                                                                        <Viewbox Width="160" Height="120" Stretch="Uniform">
                                                                             <InkCanvas EditingMode="None"
                                                                                 Background="{Binding ElementName=GridBackgroundCover, Path=Background}"
                                                                                 Strokes="{Binding Strokes}"
@@ -10540,7 +10540,7 @@
                     <RowDefinition Height="Auto" />
                     <RowDefinition Height="*" />
                     <RowDefinition Height="Auto" />
-                    <RowDefinition Height="60" />
+                    <RowDefinition Height="110" />
                 </Grid.RowDefinitions>
 
                 <!-- 顶部标题栏 -->
@@ -10627,71 +10627,91 @@
 
                 <!-- 底部按钮区域 -->
                 <Grid Grid.Row="4" Margin="0,0,0,6">
-                    <WrapPanel
+                    <Grid.RowDefinitions>
-                        Margin="10,5"
+                        <RowDefinition Height="Auto" />
-                        HorizontalAlignment="Center"
+                        <RowDefinition Height="Auto" />
-                        VerticalAlignment="Center"
+                    </Grid.RowDefinitions>
-                        Orientation="Horizontal"
+                    <StackPanel Grid.Row="0" Orientation="Horizontal" HorizontalAlignment="Center" Margin="10,4,10,2">
-                        ItemHeight="40">
                         <ToggleButton
                             x:Name="BtnToggleVideoPresenterLiveOnCanvas"
+                            Width="70"
                             Height="40"
-                            Margin="3,0"
+                            Margin="2,0"
                             Background="{DynamicResource FloatBarBackground}"
                             BorderBrush="{DynamicResource FloatBarBorderBrush}"
                             BorderThickness="1"
                             Checked="BtnToggleVideoPresenterLiveOnCanvas_Checked"
                             Unchecked="BtnToggleVideoPresenterLiveOnCanvas_Unchecked">
-                            <TextBlock
+                            <TextBlock FontSize="12" FontWeight="SemiBold" Foreground="{DynamicResource FloatBarForeground}" Text="上屏" />
-                                FontSize="12"
-                                FontWeight="SemiBold"
-                                Foreground="{DynamicResource FloatBarForeground}"
-                                Text="上屏" />
                         </ToggleButton>
                         <ToggleButton
                             x:Name="ToggleBtnPhotoCorrection"
+                            Width="70"
                             Height="40"
-                            Margin="3,0"
+                            Margin="2,0"
                             Background="{DynamicResource FloatBarBackground}"
                             BorderBrush="{DynamicResource FloatBarBorderBrush}"
                             BorderThickness="1"
                             Checked="ToggleBtnPhotoCorrection_Checked"
                             Unchecked="ToggleBtnPhotoCorrection_Unchecked">
-                            <TextBlock
+                            <TextBlock FontSize="12" FontWeight="SemiBold" Foreground="{DynamicResource FloatBarForeground}" Text="矫正" />
-                                FontSize="12"
-                                FontWeight="SemiBold"
-                                Foreground="{DynamicResource FloatBarForeground}"
-                                Text="矫正" />
                         </ToggleButton>
                         <Button
                             x:Name="BtnCapturePhoto"
+                            Width="70"
                             Height="40"
-                            Margin="3,0"
+                            Margin="2,0"
                             Background="{DynamicResource FloatBarBackground}"
                             BorderBrush="{DynamicResource FloatBarBorderBrush}"
                             BorderThickness="1"
                             Click="BtnCapturePhoto_Click">
-                            <TextBlock
+                            <TextBlock FontSize="12" FontWeight="SemiBold" Foreground="{DynamicResource FloatBarForeground}" Text="拍照" />
-                                FontSize="12"
-                                FontWeight="SemiBold"
-                                Foreground="{DynamicResource FloatBarForeground}"
-                                Text="拍照" />
                         </Button>
                         <Button
                             x:Name="BtnRotateImage"
+                            Width="70"
                             Height="40"
-                            Margin="3,0"
+                            Margin="2,0"
                             Background="{DynamicResource FloatBarBackground}"
                             BorderBrush="{DynamicResource FloatBarBorderBrush}"
                             BorderThickness="1"
                             Click="BtnRotateImage_Click">
-                            <TextBlock
+                            <TextBlock FontSize="12" FontWeight="SemiBold" Foreground="{DynamicResource FloatBarForeground}" Text="旋转" />
-                                FontSize="12"
-                                FontWeight="SemiBold"
-                                Foreground="{DynamicResource FloatBarForeground}"
-                                Text="旋转" />
                         </Button>
-                    </WrapPanel>
+                    </StackPanel>
+                    <!-- 分辨率 Tab -->
+                    <Grid Grid.Row="1" HorizontalAlignment="Center" Margin="10,6,10,4">
+                        <Border Background="{DynamicResource FloatBarBackground}" 
+                                CornerRadius="8" BorderThickness="1" BorderBrush="#616161"
+                                Width="280" Height="40" ToolTip="展台/截图分辨率">
+                            <Grid>
+                                <Border x:Name="BoothResolutionTabIndicator" 
+                                        Background="#66CCFF" 
+                                        CornerRadius="6" 
+                                        Width="68" Height="38" 
+                                        HorizontalAlignment="Left" VerticalAlignment="Center" 
+                                        Margin="1,0,0,0"/>
+                                <Grid>
+                                    <Button x:Name="BtnBoothResolution720" Width="70" Height="40" Background="Transparent" BorderThickness="0" 
+                                            Click="BoothResolutionTab_Click" Tag="1280,720" Cursor="Hand" HorizontalAlignment="Left">
+                                        <TextBlock Text="720p" FontSize="12" FontWeight="SemiBold" Foreground="{DynamicResource FloatBarForeground}" Opacity="0.7"/>
+                                    </Button>
+                                    <Button x:Name="BtnBoothResolution1080" Width="70" Height="40" Background="Transparent" BorderThickness="0" 
+                                            Click="BoothResolutionTab_Click" Tag="1920,1080" Cursor="Hand" HorizontalAlignment="Left" Margin="70,0,0,0">
+                                        <TextBlock x:Name="TbBoothResolution1080" Text="1080p" FontSize="12" FontWeight="Bold" Foreground="White"/>
+                                    </Button>
+                                    <Button x:Name="BtnBoothResolution2K" Width="70" Height="40" Background="Transparent" BorderThickness="0" 
+                                            Click="BoothResolutionTab_Click" Tag="2560,1440" Cursor="Hand" HorizontalAlignment="Left" Margin="140,0,0,0">
+                                        <TextBlock Text="2K" FontSize="12" FontWeight="SemiBold" Foreground="{DynamicResource FloatBarForeground}" Opacity="0.7"/>
+                                    </Button>
+                                    <Button x:Name="BtnBoothResolution4K" Width="70" Height="40" Background="Transparent" BorderThickness="0" 
+                                            Click="BoothResolutionTab_Click" Tag="3840,2160" Cursor="Hand" HorizontalAlignment="Left" Margin="210,0,0,0">
+                                        <TextBlock Text="4K" FontSize="12" FontWeight="SemiBold" Foreground="{DynamicResource FloatBarForeground}" Opacity="0.7"/>
+                                    </Button>
+                                </Grid>
+                            </Grid>
+                        </Border>
+                    </Grid>
                 </Grid>
             </Grid>
         </Border>

Ink Canvas/MainWindow.xaml.cs

@@ -71,6 +71,11 @@ namespace Ink_Canvas
         // 全屏处理状态标志
         public bool isFullScreenApplied = false;
 
+        private int _boothResolutionWidth = 1920;
+        private int _boothResolutionHeight = 1080;
+        public int BoothResolutionWidth => _boothResolutionWidth;
+        public int BoothResolutionHeight => _boothResolutionHeight;
+
         private static Cursor _cachedPenCursor = null;
         private static readonly object _cursorLock = new object();
 
@@ -3377,6 +3382,61 @@ namespace Ink_Canvas
         }
         #endregion
 
+        #region 展台/白板分辨率切换
+        private const int BoothResolutionTabCount = 4;
+        private static readonly (int w, int h)[] BoothResolutionValues = { (1280, 720), (1920, 1080), (2560, 1440), (3840, 2160) };
+
+        private void BoothResolutionTab_Click(object sender, RoutedEventArgs e)
+        {
+            if (sender is Button btn && btn.Tag is string tag)
+            {
+                var parts = tag.Split(',');
+                if (parts.Length == 2 && int.TryParse(parts[0].Trim(), out int w) && int.TryParse(parts[1].Trim(), out int h) && w > 0 && h > 0)
+                {
+                    _boothResolutionWidth = w;
+                    _boothResolutionHeight = h;
+                    UpdateBoothResolutionTabState();
+                }
+            }
+        }
+
+        private void UpdateBoothResolutionTabState()
+        {
+            int index = 0;
+            for (int i = 0; i < BoothResolutionValues.Length; i++)
+            {
+                if (BoothResolutionValues[i].w == _boothResolutionWidth && BoothResolutionValues[i].h == _boothResolutionHeight)
+                {
+                    index = i;
+                    break;
+                }
+            }
+
+            if (BoothResolutionTabIndicator != null)
+            {
+                BoothResolutionTabIndicator.Margin = new Thickness(1 + index * 70, 0, 0, 0);
+            }
+
+            var texts = new[] { BtnBoothResolution720?.Content as TextBlock, BtnBoothResolution1080?.Content as TextBlock, BtnBoothResolution2K?.Content as TextBlock, BtnBoothResolution4K?.Content as TextBlock };
+            for (int i = 0; i < texts.Length && i < 4; i++)
+            {
+                if (texts[i] == null) continue;
+                if (i == index)
+                {
+                    texts[i].FontWeight = FontWeights.Bold;
+                    texts[i].Foreground = new SolidColorBrush(Colors.White);
+                    texts[i].Opacity = 1.0;
+                }
+                else
+                {
+                    texts[i].FontWeight = FontWeights.SemiBold;
+                    texts[i].SetResourceReference(TextBlock.ForegroundProperty, "FloatBarForeground");
+                    texts[i].Opacity = 0.7;
+                }
+            }
+        }
+        #endregion
+
         #region 墨迹渐隐功能
         /// <summary>
         /// 墨迹渐隐开关切换事件处理