注释工具 - 右键菜单位置，便签ToolTip

PDF Office/ViewModels/Tools/AnnotToolContentViewModel.Command.cs

@@ -24,6 +24,7 @@ using System.Windows.Controls.Primitives;
 using System.Windows.Media;
 using System.Diagnostics;
 using PDF_Office.Model.AnnotPanel;
+using System.Windows.Input;
 
 namespace PDF_Office.ViewModels.Tools
 {
@@ -726,9 +727,72 @@ namespace PDF_Office.ViewModels.Tools
                 Pen hoverPen = new Pen(new SolidColorBrush(Color.FromArgb(0xff, 0x11, 0x8A, 0xff)), 1);
                 hoverPen.DashStyle = DashStyles.Dash;
                 e.DrawContext?.DrawRectangle(null, hoverPen, hoverRect);
+
+                //Todo:目前ComPDFKit.Viewer没有e.Annot参数
+                //便签，显示ToolTip内容
+                //if (e.Annot != null && e.Annot.Type == C_ANNOTATION_TYPE.C_ANNOTATION_TEXT)
+                //{
+                //    if (PDFViewer.ToolTip == null)
+                //    {
+                //        var content = e.Annot.GetContent();
+                //        if (string.IsNullOrEmpty(content) == false)
+                //        {
+                //            ToolTip TipChild = new ToolTip();
+                //            TipChild.Style = App.Current.Resources["FlowToolTip"] as Style;
+                //            TipChild.MaxWidth = 246;
+                //            TipChild.Content = content;
+                //            TipChild.Visibility = Visibility.Visible;
+                //            TipChild.IsOpen = true;
+                //            TipChild.Placement = PlacementMode.Right;
+                //            var rec = e.Annot.GetRect();
+                //            TipChild.PlacementRectangle = new Rect(rec.left, rec.top, rec.right, rec.bottom);
+                //            TipChild.PlacementTarget = PDFViewer.Parent as ContentControl;
+                //            TipChild.Placement = PlacementMode.MousePoint;
+                //            PDFViewer.ToolTip = TipChild;
+                //            oldRect = hoverRect;
+                //            PDFViewer.MouseMove -= PDFViewer_MouseMove;
+                //            PDFViewer.MouseMove += PDFViewer_MouseMove;
+                //            return;
+                //        }
+
+                //    }
+
+                //}
+            }
+
+            CloseAnnotToolTip();
+        }
+
+
+        Rect oldRect = new Rect(0, 0, 0, 0);
+        private void CloseAnnotToolTip()
+        {
+            if (PDFViewer.ToolTip != null && PDFViewer.ToolTip is ToolTip)
+            {
+                ToolTip oldTips = (ToolTip)PDFViewer.ToolTip;
+                oldTips.IsOpen = false;
+                oldTips.Visibility = Visibility.Collapsed;
+                PDFViewer.ToolTip = null;
+                PDFViewer.MouseMove -= PDFViewer_MouseMove;
+                oldRect = new Rect(0, 0, 0, 0);
             }
         }
 
+        private void PDFViewer_MouseMove(object sender, MouseEventArgs e)
+        {
+            if (sender != null && PDFViewer.ToolTip != null && PDFViewer.Parent != null)
+            {
+                var newPoint = e.GetPosition(PDFViewer.Parent as ContentControl);
+                var isOutw = newPoint.X > (oldRect.X + oldRect.Width + 4);
+                var isOuth = newPoint.Y > (oldRect.Y + oldRect.Height + 4);
+                if (newPoint.X < oldRect.X || newPoint.Y < oldRect.Y || isOutw || isOuth)
+                {
+                    CloseAnnotToolTip();
+                }
+            }
+        }
+
+
         #endregion PDFViewer事件
 
         #region BindingEvent事件

PDF Office/ViewModels/Tools/AnnotToolContentViewModel.Function.cs

@@ -1098,7 +1098,7 @@ namespace PDF_Office.ViewModels.Tools
 
                     popup.Child = item;
                     popup.PlacementRectangle = new Rect(Mouse.GetPosition(window), new Size(item.Width, item.Height));
-                    popup.Placement = System.Windows.Controls.Primitives.PlacementMode.Relative;
+                    popup.Placement = System.Windows.Controls.Primitives.PlacementMode.MousePoint;
                     popup.PlacementTarget = window; 
                     popup.IsOpen = true;
 

PDF Office/ViewModels/Tools/AnnotToolContentViewModel.Layout.cs

@@ -424,7 +424,7 @@ namespace PDF_Office.ViewModels.Tools
 
                 popup.Child = item;
                 popup.PlacementRectangle = new Rect(Mouse.GetPosition(window), new Size(item.Width, item.Height));
-                popup.Placement = System.Windows.Controls.Primitives.PlacementMode.Relative;
+                popup.Placement = System.Windows.Controls.Primitives.PlacementMode.MousePoint;
                 popup.PlacementTarget = window;
                 popup.IsOpen = true;