Improved popper, Position popped window smartly, hide it when mouse

leave it, and when popper is removed from rendering hierarchy

diff --git a/src/GraphicObjects/Popper.cs b/src/GraphicObjects/Popper.cs
index 76a12f58ba406c746015ef25924e02afb781538d..1ec6e37a7630a1f5a3a0a5cca598e4470bfbd4c4 100644 (file)
--- a/src/GraphicObjects/Popper.cs
+++ b/src/GraphicObjects/Popper.cs
@@ -31,12 +31,69 @@ namespace go
 \r
                public override GraphicObject Content {\r
                        get { return _content; }\r
-                       set { _content = value; }\r
+                       set { \r
+                               if (_content != null) {\r
+                                       _content.LayoutChanged -= _content_LayoutChanged;\r
+                                       _content.MouseLeave -= _content_MouseLeave;\r
+                               }\r
+                               \r
+                               _content = value; \r
+\r
+                               if (_content == null)\r
+                                       return;\r
+\r
+                               _content.Focusable = true;\r
+                               _content.LayoutChanged += _content_LayoutChanged;\r
+                               _content.MouseLeave += _content_MouseLeave;\r
+                       }\r
+               }\r
+\r
+               void _content_MouseLeave (object sender, MouseMoveEventArgs e)\r
+               {\r
+                       IsPopped = false;\r
+               }\r
+\r
+               void _content_LayoutChanged (object sender, LayoutChangeEventArgs e)\r
+               {\r
+                       ILayoutable tc = Content.Parent as ILayoutable;\r
+                       if (tc == null)\r
+                               return;\r
+                       Rectangle r = this.ScreenCoordinates (this.Slot);\r
+                       if (e.LayoutType == LayoutingType.Width) {\r
+                               if (Content.Slot.Width < tc.ClientRectangle.Width) {\r
+                                       if (r.Left + Content.Slot.Width > tc.ClientRectangle.Right)\r
+                                               Content.Left = tc.ClientRectangle.Right - Content.Slot.Width;\r
+                                       else\r
+                                               Content.Left = r.Left;\r
+                               }else\r
+                                       Content.Left = 0;\r
+                       }else if (e.LayoutType == LayoutingType.Height) {\r
+                               if (Content.Slot.Height < tc.ClientRectangle.Height) {\r
+                                       if (r.Bottom + Content.Slot.Height > tc.ClientRectangle.Bottom)\r
+                                               Content.Top = r.Top - Content.Slot.Height;\r
+                                       else\r
+                                               Content.Top = r.Bottom;\r
+                               }else\r
+                                       Content.Top = 0;\r
+                       }\r
                }\r
                public Popper() : base()\r
                {\r
                }       \r
-                       \r
+               public override void ClearBinding ()\r
+               {\r
+                       //ensure popped window is cleared\r
+                       if (Content != null) {\r
+                               if (Content.Parent != null) {\r
+                                       IGOLibHost tc = Content.Parent as IGOLibHost;\r
+                                       if (tc != null)\r
+                                               tc.DeleteWidget (Content);\r
+                               }\r
+                       }\r
+\r
+                       base.ClearBinding ();\r
+               }\r
+\r
                [XmlAttributeAttribute()][DefaultValue(true)]//overiden to get default to true\r
                public override bool Focusable\r
                {\r
@@ -95,10 +152,7 @@ namespace go
                        if (tc == null)\r
                                return;\r
                        if (Content != null) {\r
-                               Rectangle r = this.ScreenCoordinates (this.Slot);\r
                                Content.Visible = true;\r
-                               Content.Left = r.Left;\r
-                               Content.Top = r.Bottom;\r
                                tc.AddWidget (Content);\r
                        }\r
                        Pop.Raise (this, e);\r