improve:墨迹渐隐

2025-09-06 13:48:44 +08:00
parent 02c6caf465
commit 9081aea926
6 changed files with 137 additions and 161 deletions
@@ -6,6 +6,7 @@ using System.Windows.Ink;
 using System.Windows.Input;
 using System.Windows.Media;
 using System.Windows.Media.Animation;
+using System.Windows.Media.Effects;
 using System.Windows.Shapes;
 using System.Windows.Threading;

@@ -324,6 +325,13 @@ namespace Ink_Canvas.Helpers
                    {
                        path.StrokeThickness = Math.Max(drawingAttribs.Width * 1.5, 20);
                    }
+
+                    // 为高亮笔添加轻微的模糊效果，使渐隐更加自然
+                    path.Effect = new BlurEffect
+                    {
+                        Radius = 0.5, // 轻微的模糊效果
+                        KernelType = KernelType.Gaussian
+                    };
                }

                // 不设置任何变换，保持墨迹原有粗细
@@ -381,8 +389,7 @@ namespace Ink_Canvas.Helpers
        {
            try
            {
-                // 对于普通墨迹也使用连续渐隐动画
-                StartContinuousFadeAnimation(visual, stroke, currentOpacity, AnimationDuration);
+                StartProgressiveFadeAnimation(visual, stroke, currentOpacity, AnimationDuration);
            }
            catch (Exception ex)
            {
@@ -390,6 +397,57 @@ namespace Ink_Canvas.Helpers
            }
        }

+        /// <summary>
+        /// 统一渐隐动画 - 整个墨迹作为一个整体进行渐隐，与擦除效果一致
+        /// </summary>
+        private void StartUnifiedFadeAnimation(UIElement visual, Stroke stroke, double currentOpacity, int duration)
+        {
+            try
+            {
+                // 创建透明度动画，模拟擦除时的效果
+                var fadeAnimation = new DoubleAnimation
+                {
+                    From = currentOpacity,
+                    To = 0.0,
+                    Duration = TimeSpan.FromMilliseconds(duration),
+                    EasingFunction = new CubicEase { EasingMode = EasingMode.EaseInOut }
+                };
+
+                // 如果是高亮笔，添加轻微的缩放效果，使渐隐更加自然
+                if (stroke.DrawingAttributes.IsHighlighter)
+                {
+                    // 创建轻微的缩放动画，模拟墨迹"蒸发"的效果
+                    var scaleAnimation = new DoubleAnimation
+                    {
+                        From = 1.0,
+                        To = 0.95, // 轻微缩小，增加自然感
+                        Duration = TimeSpan.FromMilliseconds(duration),
+                        EasingFunction = new QuadraticEase { EasingMode = EasingMode.EaseIn }
+                    };
+
+                    // 创建缩放变换
+                    var scaleTransform = new ScaleTransform();
+                    visual.RenderTransform = scaleTransform;
+                    visual.RenderTransformOrigin = new Point(0.5, 0.5);
+
+                    // 应用缩放动画
+                    scaleTransform.BeginAnimation(ScaleTransform.ScaleXProperty, scaleAnimation);
+                    scaleTransform.BeginAnimation(ScaleTransform.ScaleYProperty, scaleAnimation);
+                }
+
+                // 添加动画完成事件
+                fadeAnimation.Completed += (sender, e) => OnAnimationCompleted(visual, stroke);
+
+                // 应用透明度动画
+                visual.BeginAnimation(UIElement.OpacityProperty, fadeAnimation);
+            }
+            catch (Exception ex)
+            {
+                LogHelper.WriteLogToFile($"统一渐隐动画失败: {ex}", LogHelper.LogType.Error);
+                OnAnimationCompleted(visual, stroke);
+            }
+        }
+
        /// <summary>
        /// 开始高亮笔的渐隐动画
        /// </summary>
@@ -397,8 +455,8 @@ namespace Ink_Canvas.Helpers
        {
            try
            {
-                // 使用连续渐隐动画而不是分段动画
-                StartContinuousFadeAnimation(visual, stroke, currentOpacity, (int)(AnimationDuration * 1.5));
+                // 高亮笔使用统一的渐隐动画，与擦除效果一致
+                StartUnifiedFadeAnimation(visual, stroke, currentOpacity, (int)(AnimationDuration * 1.2));
            }
            catch (Exception ex)
            {
@@ -804,98 +862,6 @@ namespace Ink_Canvas.Helpers
            return curve;
        }

-        /// <summary>
-        /// 连续渐隐动画 - 模拟橡皮擦擦除效果
-        /// </summary>
-        private void StartContinuousFadeAnimation(UIElement visual, Stroke stroke, double currentOpacity, int duration)
-        {
-            try
-            {
-                // 获取墨迹的边界
-                var geometry = stroke.GetGeometry();
-                if (geometry == null) return;
-
-                var bounds = geometry.Bounds;
-                var strokeStart = stroke.StylusPoints[0].ToPoint();
-                var strokeEnd = stroke.StylusPoints[stroke.StylusPoints.Count - 1].ToPoint();
-
-                // 计算墨迹的方向向量
-                var direction = new Vector(strokeEnd.X - strokeStart.X, strokeEnd.Y - strokeStart.Y);
-                var length = direction.Length;
-                
-                if (length == 0)
-                {
-                    // 如果墨迹没有方向（单点），使用简单渐隐
-                    StartSimpleFadeAnimation(visual, stroke, currentOpacity, duration);
-                    return;
-                }
-
-                // 归一化方向向量
-                direction.Normalize();
-
-                // 创建精确的擦除动画 - 使用PathGeometry来避免变形
-                CreatePreciseEraseAnimation(visual, stroke, bounds, strokeStart, strokeEnd, direction, length, duration);
-            }
-            catch (Exception ex)
-            {
-                LogHelper.WriteLogToFile($"连续渐隐动画失败: {ex}", LogHelper.LogType.Error);
-                // 失败时回退到简单动画
-                StartSimpleFadeAnimation(visual, stroke, currentOpacity, duration);
-            }
-        }
-
-        /// <summary>
-        /// 创建精确的擦除动画 - 使用动态裁剪区域避免墨迹移动
-        /// </summary>
-        private void CreatePreciseEraseAnimation(UIElement visual, Stroke stroke, Rect bounds, Point strokeStart, Point strokeEnd, Vector direction, double length, int duration)
-        {
-            try
-            {
-                // 计算擦除方向上的移动距离
-                var totalDistance = Math.Sqrt(Math.Pow(strokeEnd.X - strokeStart.X, 2) + Math.Pow(strokeEnd.Y - strokeStart.Y, 2));
-                
-                if (totalDistance == 0)
-                {
-                    // 如果墨迹没有长度，使用简单渐隐
-                    StartSimpleFadeAnimation(visual, stroke, visual.Opacity, duration);
-                    return;
-                }
-
-                // 创建动态裁剪区域 - 从完整墨迹开始，逐渐缩小
-                var clipGeometry = new RectangleGeometry
-                {
-                    Rect = bounds
-                };
-
-                visual.Clip = clipGeometry;
-
-                // 创建擦除动画 - 裁剪区域从起点向终点移动并缩小
-                // 使用更自然的擦除效果：从起点开始，逐渐向终点移动
-                var eraseAnimation = new RectAnimation
-                {
-                    From = bounds, // 从完整边界开始
-                    To = new Rect(strokeEnd.X, strokeEnd.Y, 0, bounds.Height), // 到终点位置，宽度为0
-                    Duration = TimeSpan.FromMilliseconds(duration),
-                    EasingFunction = new CubicEase { EasingMode = EasingMode.EaseInOut }
-                };
-
-                // 添加动画完成事件
-                eraseAnimation.Completed += (sender, e) =>
-                {
-                    OnAnimationCompleted(visual, stroke);
-                };
-
-                // 开始动画
-                clipGeometry.BeginAnimation(RectangleGeometry.RectProperty, eraseAnimation);
-            }
-            catch (Exception ex)
-            {
-                LogHelper.WriteLogToFile($"精确擦除动画失败: {ex}", LogHelper.LogType.Error);
-                // 失败时回退到简单动画
-                StartSimpleFadeAnimation(visual, stroke, visual.Opacity, duration);
-            }
-        }
-
        /// <summary>
        /// 动画完成后的统一处理
        /// </summary>
@@ -148,31 +148,30 @@ namespace Ink_Canvas.Helpers
        {
            if (window == null) return;

-            lock (_lockObject)
+            try
            {
-                var windowInfo = _windowStack.FirstOrDefault(w => w.Window == window);
-                if (windowInfo != null)
-                {
-                    // 更新创建时间，使其成为最新的窗口
-                    windowInfo.CreatedTime = DateTime.Now;
-                    
-                    // 立即将窗口置顶
-                    var hwnd = new WindowInteropHelper(window).Handle;
-                    if (hwnd != IntPtr.Zero)
-                    {
-                        SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0,
-                            SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE | SWP_SHOWWINDOW | SWP_NOOWNERZORDER);
-                        
-                        // 确保窗口样式正确
-                        int exStyle = GetWindowLong(hwnd, GWL_EXSTYLE);
-                        if ((exStyle & WS_EX_TOPMOST) == 0)
-                        {
-                            SetWindowLong(hwnd, GWL_EXSTYLE, exStyle | WS_EX_TOPMOST);
-                        }
-                    }
-                    
-                    ApplyZOrder();
-                }
+                var hwnd = new WindowInteropHelper(window).Handle;
+                if (hwnd == IntPtr.Zero) return;
+
+                // 使用更直接的方法：先激活窗口，再置顶
+                window.Activate();
+                window.Focus();
+                
+                // 设置窗口为置顶
+                SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0,
+                    SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW | SWP_NOOWNERZORDER);
+
+                // 确保窗口样式正确
+                int exStyle = GetWindowLong(hwnd, GWL_EXSTYLE);
+                SetWindowLong(hwnd, GWL_EXSTYLE, exStyle | WS_EX_TOPMOST);
+
+                // 再次确保置顶
+                SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0,
+                    SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW | SWP_NOOWNERZORDER);
+            }
+            catch (Exception ex)
+            {
+                LogHelper.WriteLogToFile($"BringToTop失败: {ex.Message}", LogHelper.LogType.Error);
            }
        }

@@ -1751,18 +1751,22 @@ namespace Ink_Canvas
        {
            try
            {
+                var hwnd = new WindowInteropHelper(this).Handle;
                if (Settings.Advanced.IsAlwaysOnTop)
                {
-                    // 注册到Z-Order管理器
-                    WindowZOrderManager.RegisterWindow(this, true, Settings.Advanced.IsNoFocusMode);
-                    
                    // 先设置WPF的Topmost属性
                    Topmost = true;

-                    // 立即应用置顶
-                    WindowZOrderManager.BringToTop(this);
+                    // 使用更强的Win32 API调用来确保置顶
+                    // 1. 设置窗口样式为置顶
+                    int exStyle = GetWindowLong(hwnd, GWL_EXSTYLE);
+                    SetWindowLong(hwnd, GWL_EXSTYLE, exStyle | WS_EX_TOPMOST);

-                    // 如果启用了无焦点模式，需要特殊处理
+                    // 2. 使用SetWindowPos确保窗口在最顶层
+                    SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0,
+                        SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE | SWP_SHOWWINDOW | SWP_NOOWNERZORDER);
+
+                    // 3. 如果启用了无焦点模式，需要特殊处理
                    if (Settings.Advanced.IsNoFocusMode)
                    {
                        // 启动置顶维护定时器
@@ -1777,9 +1781,15 @@ namespace Ink_Canvas
                else
                {
                    // 取消置顶时
-                    WindowZOrderManager.SetWindowTopmost(this, false);
-                    
-                    // 停止置顶维护定时器
+                    // 1. 先使用Win32 API取消置顶
+                    SetWindowPos(hwnd, HWND_NOTOPMOST, 0, 0, 0, 0,
+                        SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE | SWP_SHOWWINDOW | SWP_NOOWNERZORDER);
+
+                    // 2. 移除置顶窗口样式
+                    int exStyle = GetWindowLong(hwnd, GWL_EXSTYLE);
+                    SetWindowLong(hwnd, GWL_EXSTYLE, exStyle & ~WS_EX_TOPMOST);
+
+                    // 3. 停止置顶维护定时器
                    StopTopmostMaintenance();

                    // 注意：这里不直接设置Topmost，让其他代码根据模式决定
@@ -1848,14 +1858,30 @@ namespace Ink_Canvas
                    return;
                }

-                // 清理无效的窗口记录
-                WindowZOrderManager.CleanupInvalidWindows();
-
                // 检查是否有子窗口在前景
-                if (!WindowZOrderManager.HasChildWindowInForeground())
+                var foregroundWindow = GetForegroundWindow();
+                if (foregroundWindow != hwnd)
                {
-                    // 没有子窗口在前景，强制刷新所有窗口的置顶状态
-                    WindowZOrderManager.ForceRefreshAllWindows();
+                    // 检查前景窗口是否是当前应用程序的子窗口
+                    var foregroundWindowProcessId = GetWindowThreadProcessId(foregroundWindow, out uint processId);
+                    var currentProcessId = GetCurrentProcessId();
+
+                    if (processId == currentProcessId)
+                    {
+                        // 如果有子窗口在前景，暂停置顶维护
+                        return;
+                    }
+
+                    // 如果窗口不在最顶层且没有子窗口，重新设置置顶
+                    SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0,
+                        SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE | SWP_SHOWWINDOW | SWP_NOOWNERZORDER);
+
+                    // 确保窗口样式正确
+                    int exStyle = GetWindowLong(hwnd, GWL_EXSTYLE);
+                    if ((exStyle & WS_EX_TOPMOST) == 0)
+                    {
+                        SetWindowLong(hwnd, GWL_EXSTYLE, exStyle | WS_EX_TOPMOST);
+                    }
                }
            }
            catch (Exception ex)
@@ -948,7 +948,8 @@ namespace Ink_Canvas
            randWindow.Show();
            // 确保窗口显示后立即置顶
            randWindow.Activate();
-            WindowZOrderManager.BringToTop(randWindow);
+            randWindow.Topmost = true;
+            randWindow.Focus();
        }

        public void CheckEraserTypeTab()
@@ -30,11 +30,10 @@ namespace Ink_Canvas
            var mainWin = (MainWindow)Current.MainWindow;
            if (mainWin.IsLoaded)
            {
-                // 通知Z-Order管理器有系统菜单打开
-                // 这会导致主窗口暂时取消置顶，让系统菜单能够正常显示
+                // 在无焦点模式下，暂时取消主窗口置顶，让系统菜单能够正常显示
                if (Ink_Canvas.MainWindow.Settings.Advanced.IsAlwaysOnTop && Ink_Canvas.MainWindow.Settings.Advanced.IsNoFocusMode)
                {
-                    WindowZOrderManager.SetWindowTopmost(mainWin, false);
+                    mainWin.Topmost = false;
                }

                // 判斷是否在收納模式中
@@ -72,7 +71,7 @@ namespace Ink_Canvas
                // 菜单关闭后，恢复主窗口的置顶状态
                if (Ink_Canvas.MainWindow.Settings.Advanced.IsAlwaysOnTop && Ink_Canvas.MainWindow.Settings.Advanced.IsNoFocusMode)
                {
-                    WindowZOrderManager.SetWindowTopmost(mainWin, true);
+                    mainWin.Topmost = true;
                }
            }
        }
@@ -30,14 +30,11 @@ namespace Ink_Canvas
            // 加载背景
            LoadBackground(settings);

-            // 注册到Z-Order管理器，确保窗口能够正确置顶
-            WindowZOrderManager.RegisterWindow(this, true, false);
+            // 设置窗口为置顶
+            Topmost = true;
            
            // 添加窗口关闭事件处理
            Closed += RandWindow_Closed;
-            
-            // 添加窗口显示事件处理
-            Loaded += RandWindow_Loaded;
        }

        private void LoadBackground(Settings settings)
@@ -84,14 +81,11 @@ namespace Ink_Canvas
            // 加载背景
            LoadBackground(settings);

-            // 注册到Z-Order管理器，确保窗口能够正确置顶
-            WindowZOrderManager.RegisterWindow(this, true, false);
+            // 设置窗口为置顶
+            Topmost = true;
            
            // 添加窗口关闭事件处理
            Closed += RandWindow_Closed;
-            
-            // 添加窗口显示事件处理
-            Loaded += RandWindow_Loaded;

            new Thread(() =>
            {
@@ -355,22 +349,13 @@ namespace Ink_Canvas
            }
        }

-        /// <summary>
-        /// 窗口加载事件处理
-        /// </summary>
-        private void RandWindow_Loaded(object sender, RoutedEventArgs e)
-        {
-            // 窗口加载完成后，立即将其置顶
-            WindowZOrderManager.BringToTop(this);
-        }
-
        /// <summary>
        /// 窗口关闭事件处理
        /// </summary>
        private void RandWindow_Closed(object sender, EventArgs e)
        {
-            // 从Z-Order管理器中移除窗口
-            WindowZOrderManager.UnregisterWindow(this);
+            // 窗口关闭时的清理工作
+            // 这里可以添加必要的清理代码
        }
    }
 }