improve:截图

Ink Canvas/Windows/ScreenshotSelectorWindow.xaml

@@ -19,8 +19,6 @@
         <Rectangle Name="OverlayRectangle"
                    Fill="Black"
                    Opacity="0.3" />
-
-        <!-- 透明选择区域遮罩 - 使用正确的几何体操作 -->
         <Rectangle Name="TransparentSelectionMask"
                    Fill="Black"
                    Opacity="0.3"
@@ -103,7 +101,7 @@
                         Content="矩形模式" 
                         Margin="4,0"
                         Padding="12,6"
-                        Background="#2563eb"
+                        Background="#6b7280"
                         Foreground="White"
                         BorderThickness="0"
                         FontWeight="Medium"
@@ -121,7 +119,7 @@
                         Content="全屏截图" 
                         Margin="4,0"
                         Padding="12,6"
-                        Background="#7c3aed"
+                        Background="#6b7280"
                         Foreground="White"
                         BorderThickness="0"
                         FontWeight="Medium"
@@ -154,24 +152,8 @@
             </StackPanel>
         </Border>
 
-        <!-- 提示文字 -->
+        <!-- 统一提示文字区域 -->
-        <Border Background="#1a1a1a"
+        <Border Name="HintTextBorder"
-                Opacity="0.9"
-                CornerRadius="6"
-                Padding="16,10"
-                HorizontalAlignment="Center"
-                VerticalAlignment="Top"
-                Margin="0,80,0,0"
-                Panel.ZIndex="1000">
-            <TextBlock Name="HintText"
-                       Text="拖拽鼠标选择矩形区域，或使用自由绘制模式"
-                       Foreground="White"
-                       FontSize="14"
-                       FontWeight="Medium" />
-        </Border>
-
-        <!-- 调整模式提示 -->
-        <Border Name="AdjustModeHint"
                 Background="#1a1a1a"
                 Opacity="0.9"
                 CornerRadius="6"
@@ -179,9 +161,9 @@
                 HorizontalAlignment="Center"
                 VerticalAlignment="Bottom"
                 Margin="0,0,0,140"
-                Visibility="Collapsed"
                 Panel.ZIndex="1000">
-            <TextBlock Text="拖拽控制点调整选择区域，或拖拽边框移动位置"
+            <TextBlock Name="HintText"
+                       Text="拖拽鼠标选择矩形区域，或使用自由绘制模式"
                        Foreground="White"
                        FontSize="14"
                        FontWeight="Medium" />

Ink Canvas/Windows/ScreenshotSelectorWindow.xaml.cs

@@ -55,12 +55,15 @@ namespace Ink_Canvas
             // 绑定控制点事件
             BindControlPointEvents();
 
+            // 初始化按钮状态 
+            InitializeButtonStates();
+
             // 隐藏提示文字的定时器
             var timer = new DispatcherTimer();
             timer.Interval = TimeSpan.FromSeconds(5);
             timer.Tick += (s, e) =>
             {
-                HintText.Visibility = Visibility.Collapsed;
+                HintTextBorder.Visibility = Visibility.Collapsed;
                 timer.Stop();
             };
             timer.Start();
@@ -78,6 +81,13 @@ namespace Ink_Canvas
             SelectionCanvas.Children.Add(_freehandPolyline);
         }
 
+        private void InitializeButtonStates()
+        {
+            RectangleModeButton.Background = new SolidColorBrush(Color.FromRgb(107, 114, 128)); // 灰色
+            FreehandModeButton.Background = new SolidColorBrush(Color.FromRgb(107, 114, 128)); // 灰色
+            FullScreenButton.Background = new SolidColorBrush(Color.FromRgb(107, 114, 128)); // 灰色
+        }
+
         private void BindControlPointEvents()
         {
             // 绑定所有控制点的鼠标事件
@@ -148,7 +158,7 @@ namespace Ink_Canvas
             FreehandModeButton.Background = new SolidColorBrush(Color.FromRgb(107, 114, 128)); // 灰色
             FullScreenButton.Background = new SolidColorBrush(Color.FromRgb(107, 114, 128)); // 灰色
             HintText.Text = "拖拽鼠标选择矩形区域";
-            HintText.Visibility = Visibility.Visible;
+            HintTextBorder.Visibility = Visibility.Visible;
         }
 
         private void FreehandModeButton_Click(object sender, RoutedEventArgs e)
@@ -161,7 +171,7 @@ namespace Ink_Canvas
             RectangleModeButton.Background = new SolidColorBrush(Color.FromRgb(107, 114, 128)); // 灰色
             FullScreenButton.Background = new SolidColorBrush(Color.FromRgb(107, 114, 128)); // 灰色
             HintText.Text = "按住鼠标左键绘制任意形状，松开直接截图";
-            HintText.Visibility = Visibility.Visible;
+            HintTextBorder.Visibility = Visibility.Visible;
         }
 
         private void FullScreenButton_Click(object sender, RoutedEventArgs e)
@@ -230,7 +240,7 @@ namespace Ink_Canvas
             _currentPoint = _startPoint;
 
             // 隐藏提示文字
-            HintText.Visibility = Visibility.Collapsed;
+            HintTextBorder.Visibility = Visibility.Collapsed;
 
             if (_isFreehandMode)
             {
@@ -358,7 +368,8 @@ namespace Ink_Canvas
                         _currentSelection = rect;
                         _isAdjusting = true;
                         ShowControlPoints();
-                        AdjustModeHint.Visibility = Visibility.Visible;
+                        HintText.Text = "拖拽控制点调整选择区域，或拖拽边框移动位置";
+                        HintTextBorder.Visibility = Visibility.Visible;
                     }
                     else
                     {
@@ -846,7 +857,7 @@ namespace Ink_Canvas
             ControlPointsCanvas.Visibility = Visibility.Collapsed;
             SizeInfoBorder.Visibility = Visibility.Collapsed;
             SelectionPath.Visibility = Visibility.Collapsed;
-            AdjustModeHint.Visibility = Visibility.Collapsed;
+            HintTextBorder.Visibility = Visibility.Collapsed;
 
             // 重置遮罩
             TransparentSelectionMask.Visibility = Visibility.Collapsed;
@@ -868,6 +879,10 @@ namespace Ink_Canvas
             _currentSelection = new Rect();
             SelectedArea = null;
             SelectedPath = null;
+
+            RectangleModeButton.Background = new SolidColorBrush(Color.FromRgb(107, 114, 128)); // 灰色
+            FreehandModeButton.Background = new SolidColorBrush(Color.FromRgb(107, 114, 128)); // 灰色
+            FullScreenButton.Background = new SolidColorBrush(Color.FromRgb(107, 114, 128)); // 灰色
         }
     }
 }