port from perforce

aiwaz/Aiwaz.Editor/Controls/PropertyGrid.xaml.cs

@@ -0,0 +1,86 @@
+using System;
+using System.Collections.Generic;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Input;
+using System.ComponentModel;
+
+namespace Aiwaz.Editor.Controls
+{
+    public partial class PropertyGrid : HeaderedContentControl
+    {
+        private object selectedObject = null;
+
+        public PropertyGrid()
+        {
+            InitializeComponent();
+            searchTextBox.TextChanged += new TextChangedEventHandler(searchTextBox_TextChanged);
+        }
+
+        #region PropertyGrid related stuff
+        public object SelectedObject{
+            get { return selectedObject; }
+            set { selectedObject = value; SelectedObjectHelper(selectedObject,null); }
+        }
+
+        public void SelectedObjectHelper(object value,EventArgs e) {
+            if (!Application.Current.Dispatcher.CheckAccess())
+            {
+                Application.Current.Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.Normal,
+                                                           new EventHandler(SelectedObjectHelper), value, e);
+            }
+            else
+            {
+                this.PropertyPanel.Children.Clear(); //clear propertypanel
+                
+                foreach (PropertyDescriptor property in TypeDescriptor.GetProperties(value))
+                {
+                    if (!property.IsBrowsable) continue; //could also check for browsableattribute, but this one's shorter
+
+                    PropertyItem currentProperty = new PropertyItem();
+                    currentProperty.PropertyName = property.Name;        
+                    Binding b = new Binding(property.Name);
+                    b.Source = selectedObject;
+                    b.Mode = property.IsReadOnly ? BindingMode.OneWay : BindingMode.TwoWay;
+                   
+                    currentProperty.SetBinding(PropertyItem.PropertyValueProperty, b);
+                    currentProperty.OnActive += new EventHandler<DescriptionEventArgs>(currentProperty_OnActive);
+                    
+                    foreach (Attribute attribute in property.Attributes)
+                    {
+                        if (attribute.GetType() == typeof(DescriptionAttribute))
+                        {
+                            currentProperty.PropertyDescription = ((DescriptionAttribute)attribute).Description;
+                        }
+                       if (attribute.GetType() == typeof(CategoryAttribute)) {
+                            currentProperty.PropertyCategory = ((CategoryAttribute)attribute).Category;
+                        }
+                    }      
+                    PropertyPanel.Children.Add(currentProperty); //add the propertyitem
+                }
+            }            
+        }
+        #endregion
+        #region events
+        void searchTextBox_TextChanged(object sender, TextChangedEventArgs e)
+        {
+            string filterText = searchTextBox.Text.ToLower(); //we don't want to be case sensitive
+            foreach (PropertyItem pi in PropertyPanel.Children)
+            {   //hide PropertyItem if it does not contain filter text
+                pi.Visibility = (pi.PropertyName.ToLower().Contains(filterText) || filterText.Equals(string.Empty)) ? Visibility.Visible : Visibility.Collapsed;
+            }
+        }
+      
+        void currentProperty_OnActive(object sender, DescriptionEventArgs e)
+        {
+            if (!Application.Current.Dispatcher.CheckAccess()){
+                Application.Current.Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.Normal,
+                                                           new EventHandler<DescriptionEventArgs>(currentProperty_OnActive),sender, e);
+            }else{
+                this.descriptionTextBlock.Text = e.Description;
+            }
+        }
+        #endregion
+    }
+}